repos/blastem: blastem.c annotate

annotate blastem.c @ 446:1e828ed04a7c

Implement 68K stop instruction

author	Mike Pavone <pavone@retrodev.com>
date	Fri, 19 Jul 2013 22:44:00 -0700
parents	cc754a309ead
children	e730fc040169

rev	line source
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1 #include "68kinst.h"
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	2 #include "m68k_to_x86.h"
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	3 #include "z80_to_x86.h"
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	4 #include "mem.h"
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	5 #include "vdp.h"
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	6 #include "render.h"
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	7 #include "blastem.h"
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	8 #include <stdio.h>
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	9 #include <stdlib.h>
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	10 #include <string.h>
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	11
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	12 #define CARTRIDGE_WORDS 0x200000
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	13 #define RAM_WORDS 32 * 1024
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	14 #define Z80_RAM_BYTES 8 * 1024
380 1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	15
1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	16 #define MCLKS_NTSC 53693175
1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	17 #define MCLKS_PAL 53203395
1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	18
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	19 #define MCLKS_PER_68K 7
380 1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	20 #define MCLKS_PER_YM MCLKS_PER_68K
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	21 #define MCLKS_PER_Z80 15
354 15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	22 #define MCLKS_PER_PSG (MCLKS_PER_Z80*16)
380 1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	23
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	24 //TODO: Figure out the exact value for this
342 13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	25 #define LINES_NTSC 262
13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	26 #define LINES_PAL 312
13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	27
13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	28 uint32_t mclks_per_frame = MCLKS_LINE*LINES_NTSC;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	29
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	30 uint16_t cart[CARTRIDGE_WORDS];
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	31 uint16_t ram[RAM_WORDS];
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	32 uint8_t z80_ram[Z80_RAM_BYTES];
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	33
215 2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	34 int headless = 0;
265 c6d12878ea93 Add -n flag for disabling the Z80 core Mike Pavone <pavone@retrodev.com> parents: 264 diff changeset	35 int z80_enabled = 1;
356 79e4b466e7d0 Get rid of debug puts and limit based on audio rather than frame rate by default. Mike Pavone <pavone@retrodev.com> parents: 354 diff changeset	36 int frame_limit = 0;
215 2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	37
430 7f84090ab1cd Add config file parser and default config file Mike Pavone <pavone@retrodev.com> parents: 425 diff changeset	38 tern_node * config;
7f84090ab1cd Add config file parser and default config file Mike Pavone <pavone@retrodev.com> parents: 425 diff changeset	39
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	40 #ifndef MIN
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	41 #define MIN(a,b) ((a) < (b) ? (a) : (b))
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	42 #endif
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	43
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	44 #define SMD_HEADER_SIZE 512
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	45 #define SMD_MAGIC1 0x03
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	46 #define SMD_MAGIC2 0xAA
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	47 #define SMD_MAGIC3 0xBB
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	48 #define SMD_BLOCK_SIZE 0x4000
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	49
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	50 int load_smd_rom(long filesize, FILE * f)
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	51 {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	52 uint8_t block[SMD_BLOCK_SIZE];
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	53 filesize -= SMD_HEADER_SIZE;
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	54 fseek(f, SMD_HEADER_SIZE, SEEK_SET);
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	55
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	56 uint16_t * dst = cart;
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	57 while (filesize > 0) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	58 fread(block, 1, SMD_BLOCK_SIZE, f);
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	59 for (uint8_t low = block, high = (block+SMD_BLOCK_SIZE/2), *end = block+SMD_BLOCK_SIZE; high < end; high++, low++) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	60 (dst++) = high << 8 \| *low;
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	61 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	62 filesize -= SMD_BLOCK_SIZE;
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	63 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	64 return 1;
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	65 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	66
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	67 int load_rom(char * filename)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	68 {
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	69 uint8_t header[10];
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	70 FILE * f = fopen(filename, "rb");
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	71 if (!f) {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	72 return 0;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	73 }
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	74 fread(header, 1, sizeof(header), f);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	75 fseek(f, 0, SEEK_END);
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	76 long filesize = ftell(f);
158 a2ab895d9708 Fix predec address mode when used as source Mike Pavone <pavone@retrodev.com> parents: 153 diff changeset	77 if (filesize/2 > CARTRIDGE_WORDS) {
a2ab895d9708 Fix predec address mode when used as source Mike Pavone <pavone@retrodev.com> parents: 153 diff changeset	78 //carts bigger than 4MB not currently supported
a2ab895d9708 Fix predec address mode when used as source Mike Pavone <pavone@retrodev.com> parents: 153 diff changeset	79 filesize = CARTRIDGE_WORDS*2;
a2ab895d9708 Fix predec address mode when used as source Mike Pavone <pavone@retrodev.com> parents: 153 diff changeset	80 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	81 fseek(f, 0, SEEK_SET);
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	82 if (header[1] == SMD_MAGIC1 && header[8] == SMD_MAGIC2 && header[9] == SMD_MAGIC3) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	83 int i;
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	84 for (i = 3; i < 8; i++) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	85 if (header[i] != 0) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	86 break;
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	87 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	88 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	89 if (i == 8) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	90 if (header[2]) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	91 fprintf(stderr, "%s is a split SMD ROM which is not currently supported", filename);
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	92 exit(1);
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	93 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	94 return load_smd_rom(filesize, f);
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	95 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	96 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	97 fread(cart, 2, filesize/2, f);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	98 fclose(f);
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	99 for(unsigned short * cur = cart; cur - cart < (filesize/2); ++cur)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	100 {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	101 cur = (cur >> 8) \| (*cur << 8);
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	102 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	103 //TODO: Mirror ROM
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	104 return 1;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	105 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	106
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	107 uint16_t read_dma_value(uint32_t address)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	108 {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	109 //addresses here are word addresses (i.e. bit 0 corresponds to A1), so no need to do div by 2
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	110 if (address < 0x200000) {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	111 return cart[address];
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	112 } else if(address >= 0x700000) {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	113 return ram[address & 0x7FFF];
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	114 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	115 //TODO: Figure out what happens when you try to DMA from weird adresses like IO or banked Z80 area
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	116 return 0;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	117 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	118
317 e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	119 //TODO: Make these dependent on the video mode
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	120 //#define VINT_CYCLE ((MCLKS_LINE * 225 + (148 + 40) * 4)/MCLKS_PER_68K)
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	121 #define ZVINT_CYCLE ((MCLKS_LINE * 225 + (148 + 40) * 4)/MCLKS_PER_Z80)
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	122 //#define VINT_CYCLE ((MCLKS_LINE * 226)/MCLKS_PER_68K)
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	123 //#define ZVINT_CYCLE ((MCLKS_LINE * 226)/MCLKS_PER_Z80)
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	124
186 02e25abe2dcd Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write Mike Pavone <pavone@retrodev.com> parents: 185 diff changeset	125 void adjust_int_cycle(m68k_context * context, vdp_context * v_context)
02e25abe2dcd Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write Mike Pavone <pavone@retrodev.com> parents: 185 diff changeset	126 {
317 e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	127 context->int_cycle = CYCLE_NEVER;
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	128 if ((context->status & 0x7) < 6) {
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	129 uint32_t next_vint = vdp_next_vint(v_context);
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	130 if (next_vint != CYCLE_NEVER) {
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	131 next_vint /= MCLKS_PER_68K;
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	132 context->int_cycle = next_vint;
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	133 context->int_num = 6;
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	134 }
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	135 if ((context->status & 0x7) < 4) {
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	136 uint32_t next_hint = vdp_next_hint(v_context);
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	137 if (next_hint != CYCLE_NEVER) {
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	138 next_hint /= MCLKS_PER_68K;
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	139 if (next_hint < context->int_cycle) {
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	140 context->int_cycle = next_hint;
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	141 context->int_num = 4;
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	142
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	143 }
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	144 }
186 02e25abe2dcd Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write Mike Pavone <pavone@retrodev.com> parents: 185 diff changeset	145 }
02e25abe2dcd Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write Mike Pavone <pavone@retrodev.com> parents: 185 diff changeset	146 }
317 e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	147
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	148 context->target_cycle = context->int_cycle < context->sync_cycle ? context->int_cycle : context->sync_cycle;
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	149 /*printf("Cyc: %d, Trgt: %d, Int Cyc: %d, Int: %d, Mask: %X, V: %d, H: %d, HICount: %d, HReg: %d, Line: %d\n",
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	150 context->current_cycle, context->target_cycle, context->int_cycle, context->int_num, (context->status & 0x7),
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	151 v_context->regs[REG_MODE_2] & 0x20, v_context->regs[REG_MODE_1] & 0x10, v_context->hint_counter, v_context->regs[REG_HINT], v_context->cycles / MCLKS_LINE);*/
186 02e25abe2dcd Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write Mike Pavone <pavone@retrodev.com> parents: 185 diff changeset	152 }
02e25abe2dcd Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write Mike Pavone <pavone@retrodev.com> parents: 185 diff changeset	153
198 209a37eed3e7 Add support for breaking into the debugger while game is running Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	154 int break_on_sync = 0;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	155
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	156 uint8_t reset = 1;
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	157 uint8_t need_reset = 0;
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	158 uint8_t busreq = 0;
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	159 uint8_t busack = 0;
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	160 uint32_t busack_cycle = CYCLE_NEVER;
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	161 uint8_t new_busack = 0;
280 9ee64039ddeb Fix bank register update Mike Pavone <pavone@retrodev.com> parents: 279 diff changeset	162 //#define DO_DEBUG_PRINT
268 6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	163 #ifdef DO_DEBUG_PRINT
6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	164 #define dprintf printf
271 969ee17471c5 Protect debug prints for busreq/reset regs with appropriate macros Mike Pavone <pavone@retrodev.com> parents: 268 diff changeset	165 #define dputs puts
268 6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	166 #else
6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	167 #define dprintf
271 969ee17471c5 Protect debug prints for busreq/reset regs with appropriate macros Mike Pavone <pavone@retrodev.com> parents: 268 diff changeset	168 #define dputs
268 6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	169 #endif
6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	170
402 de2c085ce174 Assert z80 interrupt longer so that they are not missed when they should not be Mike Pavone <pavone@retrodev.com> parents: 398 diff changeset	171 #define Z80_VINT_DURATION 128
de2c085ce174 Assert z80 interrupt longer so that they are not missed when they should not be Mike Pavone <pavone@retrodev.com> parents: 398 diff changeset	172
268 6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	173 void sync_z80(z80_context * z_context, uint32_t mclks)
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	174 {
265 c6d12878ea93 Add -n flag for disabling the Z80 core Mike Pavone <pavone@retrodev.com> parents: 264 diff changeset	175 if (z80_enabled && !reset && !busreq) {
333 f16136a3835d Update Z80 vint timing Mike Pavone <pavone@retrodev.com> parents: 327 diff changeset	176 genesis_context * gen = z_context->system;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	177 if (need_reset) {
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	178 z80_reset(z_context);
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	179 need_reset = 0;
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	180 }
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	181 z_context->sync_cycle = mclks / MCLKS_PER_Z80;
333 f16136a3835d Update Z80 vint timing Mike Pavone <pavone@retrodev.com> parents: 327 diff changeset	182 uint32_t vint_cycle = vdp_next_vint_z80(gen->vdp) / MCLKS_PER_Z80;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	183 while (z_context->current_cycle < z_context->sync_cycle) {
402 de2c085ce174 Assert z80 interrupt longer so that they are not missed when they should not be Mike Pavone <pavone@retrodev.com> parents: 398 diff changeset	184 if (z_context->iff1 && z_context->current_cycle < (vint_cycle + Z80_VINT_DURATION)) {
335 14a937097c2b Some Z80 interrupt fixes Mike Pavone <pavone@retrodev.com> parents: 333 diff changeset	185 z_context->int_cycle = vint_cycle < z_context->int_enable_cycle ? z_context->int_enable_cycle : vint_cycle;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	186 }
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	187 z_context->target_cycle = z_context->sync_cycle < z_context->int_cycle ? z_context->sync_cycle : z_context->int_cycle;
268 6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	188 dprintf("Running Z80 from cycle %d to cycle %d. Native PC: %p\n", z_context->current_cycle, z_context->sync_cycle, z_context->native_pc);
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	189 z80_run(z_context);
268 6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	190 dprintf("Z80 ran to cycle %d\n", z_context->current_cycle);
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	191 }
289 1cc0850ab6bc Hopefully more correct implementation of the Z80 busack status Mike Pavone <pavone@retrodev.com> parents: 288 diff changeset	192 } else {
1cc0850ab6bc Hopefully more correct implementation of the Z80 busack status Mike Pavone <pavone@retrodev.com> parents: 288 diff changeset	193 z_context->current_cycle = mclks / MCLKS_PER_Z80;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	194 }
268 6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	195 }
380 1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	196
1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	197 void sync_sound(genesis_context * gen, uint32_t target)
1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	198 {
1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	199 //printf("YM \| Cycle: %d, bpos: %d, PSG \| Cycle: %d, bpos: %d\n", gen->ym->current_cycle, gen->ym->buffer_pos, gen->psg->cycles, gen->psg->buffer_pos * 2);
1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	200 psg_run(gen->psg, target);
1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	201 ym_run(gen->ym, target);
1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	202
1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	203 //printf("Target: %d, YM bufferpos: %d, PSG bufferpos: %d\n", target, gen->ym->buffer_pos, gen->psg->buffer_pos * 2);
1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	204 }
1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	205
321 146c87616b05 Don't update interrupt mask on non-interrupt exceptions Mike Pavone <pavone@retrodev.com> parents: 317 diff changeset	206 uint32_t frame=0;
268 6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	207 m68k_context * sync_components(m68k_context * context, uint32_t address)
6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	208 {
6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	209 //TODO: Handle sync targets smaller than a single frame
288 a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	210 genesis_context * gen = context->system;
a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	211 vdp_context * v_context = gen->vdp;
a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	212 z80_context * z_context = gen->z80;
268 6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	213 uint32_t mclks = context->current_cycle * MCLKS_PER_68K;
6c2d7e003a55 Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset Mike Pavone <pavone@retrodev.com> parents: 266 diff changeset	214 sync_z80(z_context, mclks);
342 13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	215 if (mclks >= mclks_per_frame) {
380 1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	216 sync_sound(gen, mclks);
1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	217 gen->ym->current_cycle -= mclks_per_frame;
1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	218 gen->psg->cycles -= mclks_per_frame;
374 d42a8a3e4894 Fix YM2612 busy flag Mike Pavone <pavone@retrodev.com> parents: 372 diff changeset	219 if (gen->ym->write_cycle != CYCLE_NEVER) {
d42a8a3e4894 Fix YM2612 busy flag Mike Pavone <pavone@retrodev.com> parents: 372 diff changeset	220 gen->ym->write_cycle = gen->ym->write_cycle >= mclks_per_frame/MCLKS_PER_68K ? gen->ym->write_cycle - mclks_per_frame/MCLKS_PER_68K : 0;
d42a8a3e4894 Fix YM2612 busy flag Mike Pavone <pavone@retrodev.com> parents: 372 diff changeset	221 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	222 //printf("reached frame end \| 68K Cycles: %d, MCLK Cycles: %d\n", context->current_cycle, mclks);
342 13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	223 vdp_run_context(v_context, mclks_per_frame);
380 1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	224
215 2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	225 if (!headless) {
338 5c34a9c39394 Re-enable frame limit, but add a command line flag to disable it Mike Pavone <pavone@retrodev.com> parents: 336 diff changeset	226 break_on_sync \|= wait_render_frame(v_context, frame_limit);
215 2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	227 }
321 146c87616b05 Don't update interrupt mask on non-interrupt exceptions Mike Pavone <pavone@retrodev.com> parents: 317 diff changeset	228 frame++;
342 13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	229 mclks -= mclks_per_frame;
13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	230 vdp_adjust_cycles(v_context, mclks_per_frame);
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	231 io_adjust_cycles(gen->ports, context->current_cycle, mclks_per_frame/MCLKS_PER_68K);
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	232 io_adjust_cycles(gen->ports+1, context->current_cycle, mclks_per_frame/MCLKS_PER_68K);
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	233 io_adjust_cycles(gen->ports+2, context->current_cycle, mclks_per_frame/MCLKS_PER_68K);
344 b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	234 if (busack_cycle != CYCLE_NEVER) {
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	235 if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) {
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	236 busack_cycle -= mclks_per_frame/MCLKS_PER_68K;
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	237 } else {
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	238 busack_cycle = CYCLE_NEVER;
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	239 busack = new_busack;
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	240 }
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	241 }
342 13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	242 context->current_cycle -= mclks_per_frame/MCLKS_PER_68K;
13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	243 if (z_context->current_cycle >= mclks_per_frame/MCLKS_PER_Z80) {
13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	244 z_context->current_cycle -= mclks_per_frame/MCLKS_PER_Z80;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	245 } else {
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	246 z_context->current_cycle = 0;
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	247 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	248 if (mclks) {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	249 vdp_run_context(v_context, mclks);
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	250 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	251 } else {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	252 //printf("running VDP for %d cycles\n", mclks - v_context->cycles);
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	253 vdp_run_context(v_context, mclks);
380 1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	254 sync_sound(gen, mclks);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	255 }
317 e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	256 if (context->int_ack) {
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	257 vdp_int_ack(v_context, context->int_ack);
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	258 context->int_ack = 0;
e5e8b48ad157 Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port. Mike Pavone <pavone@retrodev.com> parents: 290 diff changeset	259 }
186 02e25abe2dcd Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write Mike Pavone <pavone@retrodev.com> parents: 185 diff changeset	260 adjust_int_cycle(context, v_context);
446 1e828ed04a7c Implement 68K stop instruction Mike Pavone <pavone@retrodev.com> parents: 444 diff changeset	261 if (context->current_cycle <= context->sync_cycle) {
1e828ed04a7c Implement 68K stop instruction Mike Pavone <pavone@retrodev.com> parents: 444 diff changeset	262 context->sync_cycle = context->current_cycle + 4;
1e828ed04a7c Implement 68K stop instruction Mike Pavone <pavone@retrodev.com> parents: 444 diff changeset	263 if (context->sync_cycle < context->int_cycle) {
1e828ed04a7c Implement 68K stop instruction Mike Pavone <pavone@retrodev.com> parents: 444 diff changeset	264 context->target_cycle = context->sync_cycle;
1e828ed04a7c Implement 68K stop instruction Mike Pavone <pavone@retrodev.com> parents: 444 diff changeset	265 }
1e828ed04a7c Implement 68K stop instruction Mike Pavone <pavone@retrodev.com> parents: 444 diff changeset	266 }
198 209a37eed3e7 Add support for breaking into the debugger while game is running Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	267 if (break_on_sync && address) {
209a37eed3e7 Add support for breaking into the debugger while game is running Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	268 break_on_sync = 0;
209a37eed3e7 Add support for breaking into the debugger while game is running Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	269 debugger(context, address);
209a37eed3e7 Add support for breaking into the debugger while game is running Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	270 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	271 return context;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	272 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	273
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	274 m68k_context * vdp_port_write(uint32_t vdp_port, m68k_context * context, uint16_t value)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	275 {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	276 if (vdp_port & 0x2700E0) {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	277 printf("machine freeze due to write to address %X\n", 0xC00000 \| vdp_port);
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	278 exit(1);
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	279 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	280 vdp_port &= 0x1F;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	281 //printf("vdp_port write: %X, value: %X, cycle: %d\n", vdp_port, value, context->current_cycle);
198 209a37eed3e7 Add support for breaking into the debugger while game is running Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	282 sync_components(context, 0);
263 2989ed7b8608 Add a second context pointer to m68k_context so that try_fifo_write can still have easy access to the VDP. Handle writes to Z80 code addresses from the 68K. Mike Pavone <pavone@retrodev.com> parents: 260 diff changeset	283 vdp_context * v_context = context->video_context;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	284 if (vdp_port < 0x10) {
149 139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	285 int blocked;
345 29d2ca563499 Don't sync the 68K clock to the VDP clock unless the 68K had to wait for the VDP. This unfortunately breaks the direct color DMA demos, but should be more correct overall. Mike Pavone <pavone@retrodev.com> parents: 344 diff changeset	286 uint32_t before_cycle = v_context->cycles;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	287 if (vdp_port < 4) {
149 139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	288 while (vdp_data_port_write(v_context, value) < 0) {
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	289 while(v_context->flags & FLAG_DMA_RUN) {
342 13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	290 vdp_run_dma_done(v_context, mclks_per_frame);
13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	291 if (v_context->cycles >= mclks_per_frame) {
215 2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	292 if (!headless) {
338 5c34a9c39394 Re-enable frame limit, but add a command line flag to disable it Mike Pavone <pavone@retrodev.com> parents: 336 diff changeset	293 wait_render_frame(v_context, frame_limit);
215 2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	294 }
342 13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	295 vdp_adjust_cycles(v_context, mclks_per_frame);
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	296 genesis_context * gen = context->system;
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	297 io_adjust_cycles(gen->ports, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K);
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	298 io_adjust_cycles(gen->ports+1, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K);
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	299 io_adjust_cycles(gen->ports+2, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K);
344 b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	300 if (busack_cycle != CYCLE_NEVER) {
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	301 if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) {
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	302 busack_cycle -= mclks_per_frame/MCLKS_PER_68K;
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	303 } else {
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	304 busack_cycle = CYCLE_NEVER;
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	305 busack = new_busack;
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	306 }
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	307 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	308 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	309 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	310 context->current_cycle = v_context->cycles / MCLKS_PER_68K;
149 139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	311 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	312 } else if(vdp_port < 8) {
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	313 blocked = vdp_control_port_write(v_context, value);
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	314 if (blocked) {
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	315 while (blocked) {
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	316 while(v_context->flags & FLAG_DMA_RUN) {
342 13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	317 vdp_run_dma_done(v_context, mclks_per_frame);
13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	318 if (v_context->cycles >= mclks_per_frame) {
215 2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	319 if (!headless) {
338 5c34a9c39394 Re-enable frame limit, but add a command line flag to disable it Mike Pavone <pavone@retrodev.com> parents: 336 diff changeset	320 wait_render_frame(v_context, frame_limit);
215 2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	321 }
342 13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	322 vdp_adjust_cycles(v_context, mclks_per_frame);
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	323 genesis_context * gen = context->system;
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	324 io_adjust_cycles(gen->ports, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K);
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	325 io_adjust_cycles(gen->ports+1, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K);
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	326 io_adjust_cycles(gen->ports+2, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K);
344 b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	327 if (busack_cycle != CYCLE_NEVER) {
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	328 if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) {
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	329 busack_cycle -= mclks_per_frame/MCLKS_PER_68K;
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	330 } else {
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	331 busack_cycle = CYCLE_NEVER;
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	332 busack = new_busack;
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	333 }
b46771135442 Handle busack across frame boundary Mike Pavone <pavone@retrodev.com> parents: 343 diff changeset	334 }
149 139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	335 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	336 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	337 if (blocked < 0) {
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	338 blocked = vdp_control_port_write(v_context, value);
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	339 } else {
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	340 blocked = 0;
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	341 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	342 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	343 context->current_cycle = v_context->cycles / MCLKS_PER_68K;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	344 } else {
186 02e25abe2dcd Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write Mike Pavone <pavone@retrodev.com> parents: 185 diff changeset	345 adjust_int_cycle(context, v_context);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	346 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	347 } else {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	348 printf("Illegal write to HV Counter port %X\n", vdp_port);
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	349 exit(1);
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	350 }
345 29d2ca563499 Don't sync the 68K clock to the VDP clock unless the 68K had to wait for the VDP. This unfortunately breaks the direct color DMA demos, but should be more correct overall. Mike Pavone <pavone@retrodev.com> parents: 344 diff changeset	351 if (v_context->cycles != before_cycle) {
29d2ca563499 Don't sync the 68K clock to the VDP clock unless the 68K had to wait for the VDP. This unfortunately breaks the direct color DMA demos, but should be more correct overall. Mike Pavone <pavone@retrodev.com> parents: 344 diff changeset	352 context->current_cycle = v_context->cycles / MCLKS_PER_68K;
29d2ca563499 Don't sync the 68K clock to the VDP clock unless the 68K had to wait for the VDP. This unfortunately breaks the direct color DMA demos, but should be more correct overall. Mike Pavone <pavone@retrodev.com> parents: 344 diff changeset	353 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	354 } else if (vdp_port < 0x18) {
354 15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	355 genesis_context * gen = context->system;
380 1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	356 sync_sound(gen, context->current_cycle * MCLKS_PER_68K);
354 15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	357 psg_write(gen->psg, value);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	358 } else {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	359 //TODO: Implement undocumented test register(s)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	360 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	361 return context;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	362 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	363
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	364 m68k_context * vdp_port_write_b(uint32_t vdp_port, m68k_context * context, uint8_t value)
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	365 {
357 fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	366 return vdp_port_write(vdp_port, context, vdp_port < 0x10 ? value \| value << 8 : ((vdp_port & 1) ? value : 0));
fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	367 }
fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	368
fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	369 z80_context * z80_vdp_port_write(uint16_t vdp_port, z80_context * context, uint8_t value)
fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	370 {
fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	371 genesis_context * gen = context->system;
358 9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	372 if (vdp_port & 0xE0) {
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	373 printf("machine freeze due to write to Z80 address %X\n", 0x7F00 \| vdp_port);
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	374 exit(1);
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	375 }
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	376 if (vdp_port < 0x10) {
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	377 //These probably won't currently interact well with the 68K accessing the VDP
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	378 vdp_run_context(gen->vdp, context->current_cycle * MCLKS_PER_Z80);
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	379 if (vdp_port < 4) {
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	380 vdp_data_port_write(gen->vdp, value << 8 \| value);
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	381 } else if (vdp_port < 8) {
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	382 vdp_control_port_write(gen->vdp, value << 8 \| value);
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	383 } else {
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	384 printf("Illegal write to HV Counter port %X\n", vdp_port);
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	385 exit(1);
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	386 }
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	387 } else if (vdp_port < 0x18) {
380 1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	388 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80);
358 9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	389 psg_write(gen->psg, value);
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	390 } else {
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	391 //TODO: Implement undocumented test register(s)
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	392 }
357 fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	393 return context;
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	394 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	395
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	396 uint16_t vdp_port_read(uint32_t vdp_port, m68k_context * context)
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	397 {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	398 if (vdp_port & 0x2700E0) {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	399 printf("machine freeze due to read from address %X\n", 0xC00000 \| vdp_port);
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	400 exit(1);
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	401 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	402 vdp_port &= 0x1F;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	403 uint16_t value;
198 209a37eed3e7 Add support for breaking into the debugger while game is running Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	404 sync_components(context, 0);
263 2989ed7b8608 Add a second context pointer to m68k_context so that try_fifo_write can still have easy access to the VDP. Handle writes to Z80 code addresses from the 68K. Mike Pavone <pavone@retrodev.com> parents: 260 diff changeset	405 vdp_context * v_context = context->video_context;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	406 if (vdp_port < 0x10) {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	407 if (vdp_port < 4) {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	408 value = vdp_data_port_read(v_context);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	409 } else if(vdp_port < 8) {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	410 value = vdp_control_port_read(v_context);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	411 } else {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	412 value = vdp_hv_counter_read(v_context);
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	413 //printf("HV Counter: %X at cycle %d\n", value, v_context->cycles);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	414 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	415 context->current_cycle = v_context->cycles/MCLKS_PER_68K;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	416 } else {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	417 printf("Illegal read from PSG or test register port %X\n", vdp_port);
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	418 exit(1);
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	419 }
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	420 return value;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	421 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	422
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	423 uint8_t vdp_port_read_b(uint32_t vdp_port, m68k_context * context)
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	424 {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	425 uint16_t value = vdp_port_read(vdp_port, context);
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	426 if (vdp_port & 1) {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	427 return value;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	428 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	429 return value >> 8;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	430 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	431 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	432
279 6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	433 uint32_t zram_counter = 0;
289 1cc0850ab6bc Hopefully more correct implementation of the Z80 busack status Mike Pavone <pavone@retrodev.com> parents: 288 diff changeset	434 #define Z80_ACK_DELAY 3
336 87b65e5ce1ab Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too Mike Pavone <pavone@retrodev.com> parents: 335 diff changeset	435 #define Z80_BUSY_DELAY 1//TODO: Find the actual value for this
289 1cc0850ab6bc Hopefully more correct implementation of the Z80 busack status Mike Pavone <pavone@retrodev.com> parents: 288 diff changeset	436 #define Z80_REQ_BUSY 1
1cc0850ab6bc Hopefully more correct implementation of the Z80 busack status Mike Pavone <pavone@retrodev.com> parents: 288 diff changeset	437 #define Z80_REQ_ACK 0
1cc0850ab6bc Hopefully more correct implementation of the Z80 busack status Mike Pavone <pavone@retrodev.com> parents: 288 diff changeset	438 #define Z80_RES_BUSACK reset
279 6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	439
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	440 m68k_context * io_write(uint32_t location, m68k_context * context, uint8_t value)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	441 {
288 a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	442 genesis_context * gen = context->system;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	443 if (location < 0x10000) {
336 87b65e5ce1ab Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too Mike Pavone <pavone@retrodev.com> parents: 335 diff changeset	444 if (busack_cycle <= context->current_cycle) {
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	445 busack = new_busack;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	446 busack_cycle = CYCLE_NEVER;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	447 }
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	448 if (!(busack \|\| reset)) {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	449 location &= 0x7FFF;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	450 if (location < 0x4000) {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	451 z80_ram[location & 0x1FFF] = value;
288 a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	452 z80_handle_code_write(location & 0x1FFF, gen->z80);
a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	453 } else if (location < 0x6000) {
380 1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	454 sync_sound(gen, context->current_cycle * MCLKS_PER_68K);
288 a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	455 if (location & 1) {
a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	456 ym_data_write(gen->ym, value);
a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	457 } else if(location & 2) {
a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	458 ym_address_write_part2(gen->ym, value);
a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	459 } else {
a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	460 ym_address_write_part1(gen->ym, value);
a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	461 }
405 042c4ba4a838 Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again Mike Pavone <pavone@retrodev.com> parents: 404 diff changeset	462 } else if (location == 0x6000) {
042c4ba4a838 Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again Mike Pavone <pavone@retrodev.com> parents: 404 diff changeset	463 gen->z80->bank_reg = (gen->z80->bank_reg >> 1 \| value << 8) & 0x1FF;
042c4ba4a838 Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again Mike Pavone <pavone@retrodev.com> parents: 404 diff changeset	464 if (gen->z80->bank_reg < 0x80) {
042c4ba4a838 Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again Mike Pavone <pavone@retrodev.com> parents: 404 diff changeset	465 gen->z80->mem_pointers[1] = (gen->z80->bank_reg << 15) + ((char *)gen->z80->mem_pointers[2]);
042c4ba4a838 Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again Mike Pavone <pavone@retrodev.com> parents: 404 diff changeset	466 } else {
042c4ba4a838 Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again Mike Pavone <pavone@retrodev.com> parents: 404 diff changeset	467 gen->z80->mem_pointers[1] = NULL;
042c4ba4a838 Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again Mike Pavone <pavone@retrodev.com> parents: 404 diff changeset	468 }
395 0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	469 } else {
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	470 printf("68K write to unhandled Z80 address %X\n", location);
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	471 exit(1);
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	472 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	473 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	474 } else {
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	475 location &= 0x1FFF;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	476 if (location < 0x100) {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	477 switch(location/2)
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	478 {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	479 case 0x1:
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	480 io_data_write(gen->ports, value, context->current_cycle);
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	481 break;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	482 case 0x2:
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	483 io_data_write(gen->ports+1, value, context->current_cycle);
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	484 break;
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	485 case 0x3:
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	486 io_data_write(gen->ports+2, value, context->current_cycle);
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	487 break;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	488 case 0x4:
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	489 gen->ports[0].control = value;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	490 break;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	491 case 0x5:
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	492 gen->ports[1].control = value;
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	493 break;
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	494 case 0x6:
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	495 gen->ports[2].control = value;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	496 break;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	497 }
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	498 } else {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	499 if (location == 0x1100) {
288 a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	500 sync_z80(gen->z80, context->current_cycle * MCLKS_PER_68K);
336 87b65e5ce1ab Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too Mike Pavone <pavone@retrodev.com> parents: 335 diff changeset	501 if (busack_cycle <= context->current_cycle) {
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	502 busack = new_busack;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	503 busack_cycle = CYCLE_NEVER;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	504 }
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	505 if (value & 1) {
271 969ee17471c5 Protect debug prints for busreq/reset regs with appropriate macros Mike Pavone <pavone@retrodev.com> parents: 268 diff changeset	506 dputs("bus requesting Z80");
336 87b65e5ce1ab Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too Mike Pavone <pavone@retrodev.com> parents: 335 diff changeset	507
87b65e5ce1ab Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too Mike Pavone <pavone@retrodev.com> parents: 335 diff changeset	508 if(!reset && !busreq) {
289 1cc0850ab6bc Hopefully more correct implementation of the Z80 busack status Mike Pavone <pavone@retrodev.com> parents: 288 diff changeset	509 busack_cycle = ((gen->z80->current_cycle + Z80_ACK_DELAY) * MCLKS_PER_Z80) / MCLKS_PER_68K;//context->current_cycle + Z80_ACK_DELAY;
1cc0850ab6bc Hopefully more correct implementation of the Z80 busack status Mike Pavone <pavone@retrodev.com> parents: 288 diff changeset	510 new_busack = Z80_REQ_ACK;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	511 }
364 62177cc39049 Incredibly broken YM2612 support plus a fix to Z80 bus request Mike Pavone <pavone@retrodev.com> parents: 362 diff changeset	512 busreq = 1;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	513 } else {
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	514 if (busreq) {
271 969ee17471c5 Protect debug prints for busreq/reset regs with appropriate macros Mike Pavone <pavone@retrodev.com> parents: 268 diff changeset	515 dputs("releasing z80 bus");
280 9ee64039ddeb Fix bank register update Mike Pavone <pavone@retrodev.com> parents: 279 diff changeset	516 #ifdef DO_DEBUG_PRINT
279 6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	517 char fname[20];
6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	518 sprintf(fname, "zram-%d", zram_counter++);
6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	519 FILE * f = fopen(fname, "wb");
6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	520 fwrite(z80_ram, 1, sizeof(z80_ram), f);
6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	521 fclose(f);
280 9ee64039ddeb Fix bank register update Mike Pavone <pavone@retrodev.com> parents: 279 diff changeset	522 #endif
336 87b65e5ce1ab Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too Mike Pavone <pavone@retrodev.com> parents: 335 diff changeset	523 busack_cycle = ((gen->z80->current_cycle + Z80_BUSY_DELAY) * MCLKS_PER_Z80) / MCLKS_PER_68K;
87b65e5ce1ab Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too Mike Pavone <pavone@retrodev.com> parents: 335 diff changeset	524 new_busack = Z80_REQ_BUSY;
87b65e5ce1ab Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too Mike Pavone <pavone@retrodev.com> parents: 335 diff changeset	525 busreq = 0;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	526 }
289 1cc0850ab6bc Hopefully more correct implementation of the Z80 busack status Mike Pavone <pavone@retrodev.com> parents: 288 diff changeset	527 //busack_cycle = CYCLE_NEVER;
1cc0850ab6bc Hopefully more correct implementation of the Z80 busack status Mike Pavone <pavone@retrodev.com> parents: 288 diff changeset	528 //busack = Z80_REQ_BUSY;
336 87b65e5ce1ab Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too Mike Pavone <pavone@retrodev.com> parents: 335 diff changeset	529
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	530 }
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	531 } else if (location == 0x1200) {
288 a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	532 sync_z80(gen->z80, context->current_cycle * MCLKS_PER_68K);
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	533 if (value & 1) {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	534 if (reset && busreq) {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	535 new_busack = 0;
289 1cc0850ab6bc Hopefully more correct implementation of the Z80 busack status Mike Pavone <pavone@retrodev.com> parents: 288 diff changeset	536 busack_cycle = ((gen->z80->current_cycle + Z80_ACK_DELAY) * MCLKS_PER_Z80) / MCLKS_PER_68K;//context->current_cycle + Z80_ACK_DELAY;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	537 }
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	538 //TODO: Deal with the scenario in which reset is not asserted long enough
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	539 if (reset) {
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	540 need_reset = 1;
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	541 //TODO: Add necessary delay between release of reset and start of execution
288 a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	542 gen->z80->current_cycle = (context->current_cycle * MCLKS_PER_68K) / MCLKS_PER_Z80;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	543 }
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	544 reset = 0;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	545 } else {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	546 reset = 1;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	547 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	548 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	549 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	550 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	551 return context;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	552 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	553
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	554 m68k_context * io_write_w(uint32_t location, m68k_context * context, uint16_t value)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	555 {
404 88fa2ad53e64 Minor refactor of io_read functions to avoid duplication of logic between byte and word versions Mike Pavone <pavone@retrodev.com> parents: 402 diff changeset	556 if (location < 0x10000 \|\| (location & 0x1FFF) >= 0x100) {
88fa2ad53e64 Minor refactor of io_read functions to avoid duplication of logic between byte and word versions Mike Pavone <pavone@retrodev.com> parents: 402 diff changeset	557 return io_write(location, context, value >> 8);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	558 } else {
404 88fa2ad53e64 Minor refactor of io_read functions to avoid duplication of logic between byte and word versions Mike Pavone <pavone@retrodev.com> parents: 402 diff changeset	559 return io_write(location, context, value);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	560 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	561 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	562
130 0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	563 #define USA 0x80
0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	564 #define JAP 0x00
0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	565 #define EUR 0xC0
0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	566 #define NO_DISK 0x20
0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	567 uint8_t version_reg = NO_DISK \| USA;
0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	568
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	569 uint8_t io_read(uint32_t location, m68k_context * context)
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	570 {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	571 uint8_t value;
288 a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	572 genesis_context *gen = context->system;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	573 if (location < 0x10000) {
336 87b65e5ce1ab Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too Mike Pavone <pavone@retrodev.com> parents: 335 diff changeset	574 if (busack_cycle <= context->current_cycle) {
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	575 busack = new_busack;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	576 busack_cycle = CYCLE_NEVER;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	577 }
289 1cc0850ab6bc Hopefully more correct implementation of the Z80 busack status Mike Pavone <pavone@retrodev.com> parents: 288 diff changeset	578 if (!(busack==Z80_REQ_BUSY \|\| reset)) {
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	579 location &= 0x7FFF;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	580 if (location < 0x4000) {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	581 value = z80_ram[location & 0x1FFF];
288 a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	582 } else if (location < 0x6000) {
380 1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	583 sync_sound(gen, context->current_cycle * MCLKS_PER_68K);
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	584 value = ym_read_status(gen->ym);
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	585 } else {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	586 value = 0xFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	587 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	588 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	589 value = 0xFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	590 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	591 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	592 location &= 0x1FFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	593 if (location < 0x100) {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	594 switch(location/2)
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	595 {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	596 case 0x0:
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	597 //version bits should be 0 for now since we're not emulating TMSS
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	598 value = version_reg;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	599 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	600 case 0x1:
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	601 value = io_data_read(gen->ports, context->current_cycle);
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	602 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	603 case 0x2:
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	604 value = io_data_read(gen->ports+1, context->current_cycle);
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	605 break;
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	606 case 0x3:
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	607 value = io_data_read(gen->ports+2, context->current_cycle);
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	608 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	609 case 0x4:
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	610 value = gen->ports[0].control;
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	611 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	612 case 0x5:
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	613 value = gen->ports[1].control;
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	614 break;
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	615 case 0x6:
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	616 value = gen->ports[2].control;
405 042c4ba4a838 Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again Mike Pavone <pavone@retrodev.com> parents: 404 diff changeset	617 break;
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	618 default:
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	619 value = 0xFF;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	620 }
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	621 } else {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	622 if (location == 0x1100) {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	623 if (busack_cycle <= context->current_cycle) {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	624 busack = new_busack;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	625 busack_cycle = CYCLE_NEVER;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	626 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	627 value = Z80_RES_BUSACK \|\| busack;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	628 dprintf("Byte read of BUSREQ returned %d @ %d (reset: %d, busack: %d, busack_cycle %d)\n", value, context->current_cycle, reset, busack, busack_cycle);
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	629 } else if (location == 0x1200) {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	630 value = !reset;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	631 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	632 value = 0xFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	633 printf("Byte read of unknown IO location: %X\n", location);
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	634 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	635 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	636 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	637 return value;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	638 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	639
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	640 uint16_t io_read_w(uint32_t location, m68k_context * context)
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	641 {
404 88fa2ad53e64 Minor refactor of io_read functions to avoid duplication of logic between byte and word versions Mike Pavone <pavone@retrodev.com> parents: 402 diff changeset	642 uint16_t value = io_read(location, context);
88fa2ad53e64 Minor refactor of io_read functions to avoid duplication of logic between byte and word versions Mike Pavone <pavone@retrodev.com> parents: 402 diff changeset	643 if (location < 0x10000 \|\| (location & 0x1FFF) < 0x100) {
88fa2ad53e64 Minor refactor of io_read functions to avoid duplication of logic between byte and word versions Mike Pavone <pavone@retrodev.com> parents: 402 diff changeset	644 value = value \| (value << 8);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	645 } else {
404 88fa2ad53e64 Minor refactor of io_read functions to avoid duplication of logic between byte and word versions Mike Pavone <pavone@retrodev.com> parents: 402 diff changeset	646 value <<= 8;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	647 }
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	648 return value;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	649 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	650
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	651 z80_context * z80_write_ym(uint16_t location, z80_context * context, uint8_t value)
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	652 {
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	653 genesis_context * gen = context->system;
380 1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	654 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80);
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	655 if (location & 1) {
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	656 ym_data_write(gen->ym, value);
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	657 } else if (location & 2) {
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	658 ym_address_write_part2(gen->ym, value);
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	659 } else {
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	660 ym_address_write_part1(gen->ym, value);
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	661 }
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	662 return context;
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	663 }
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	664
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	665 uint8_t z80_read_ym(uint16_t location, z80_context * context)
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	666 {
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	667 genesis_context * gen = context->system;
380 1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	668 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80);
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	669 return ym_read_status(gen->ym);
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	670 }
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	671
351 2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	672 uint16_t read_sram_w(uint32_t address, m68k_context * context)
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	673 {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	674 genesis_context * gen = context->system;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	675 address &= gen->save_ram_mask;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	676 switch(gen->save_flags)
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	677 {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	678 case RAM_FLAG_BOTH:
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	679 return gen->save_ram[address] << 8 \| gen->save_ram[address+1];
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	680 case RAM_FLAG_EVEN:
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	681 return gen->save_ram[address >> 1] << 8 \| 0xFF;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	682 case RAM_FLAG_ODD:
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	683 return gen->save_ram[address >> 1] \| 0xFF00;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	684 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	685 return 0xFFFF;//We should never get here
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	686 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	687
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	688 uint8_t read_sram_b(uint32_t address, m68k_context * context)
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	689 {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	690 genesis_context * gen = context->system;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	691 address &= gen->save_ram_mask;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	692 switch(gen->save_flags)
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	693 {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	694 case RAM_FLAG_BOTH:
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	695 return gen->save_ram[address];
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	696 case RAM_FLAG_EVEN:
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	697 if (address & 1) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	698 return 0xFF;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	699 } else {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	700 return gen->save_ram[address >> 1];
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	701 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	702 case RAM_FLAG_ODD:
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	703 if (address & 1) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	704 return gen->save_ram[address >> 1];
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	705 } else {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	706 return 0xFF;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	707 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	708 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	709 return 0xFF;//We should never get here
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	710 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	711
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	712 m68k_context * write_sram_area_w(uint32_t address, m68k_context * context, uint16_t value)
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	713 {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	714 genesis_context * gen = context->system;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	715 if ((gen->bank_regs[0] & 0x3) == 1) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	716 address &= gen->save_ram_mask;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	717 switch(gen->save_flags)
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	718 {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	719 case RAM_FLAG_BOTH:
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	720 gen->save_ram[address] = value >> 8;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	721 gen->save_ram[address+1] = value;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	722 break;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	723 case RAM_FLAG_EVEN:
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	724 gen->save_ram[address >> 1] = value >> 8;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	725 break;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	726 case RAM_FLAG_ODD:
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	727 gen->save_ram[address >> 1] = value;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	728 break;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	729 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	730 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	731 return context;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	732 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	733
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	734 m68k_context * write_sram_area_b(uint32_t address, m68k_context * context, uint8_t value)
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	735 {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	736 genesis_context * gen = context->system;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	737 if ((gen->bank_regs[0] & 0x3) == 1) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	738 address &= gen->save_ram_mask;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	739 switch(gen->save_flags)
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	740 {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	741 case RAM_FLAG_BOTH:
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	742 gen->save_ram[address] = value;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	743 break;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	744 case RAM_FLAG_EVEN:
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	745 if (!(address & 1)) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	746 gen->save_ram[address >> 1] = value;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	747 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	748 break;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	749 case RAM_FLAG_ODD:
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	750 if (address & 1) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	751 gen->save_ram[address >> 1] = value;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	752 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	753 break;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	754 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	755 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	756 return context;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	757 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	758
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	759 m68k_context * write_bank_reg_w(uint32_t address, m68k_context * context, uint16_t value)
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	760 {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	761 genesis_context * gen = context->system;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	762 address &= 0xE;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	763 address >>= 1;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	764 gen->bank_regs[address] = value;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	765 if (!address) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	766 if (value & 1) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	767 context->mem_pointers[2] = NULL;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	768 } else {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	769 context->mem_pointers[2] = cart + 0x200000/2;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	770 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	771 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	772 return context;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	773 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	774
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	775 m68k_context * write_bank_reg_b(uint32_t address, m68k_context * context, uint8_t value)
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	776 {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	777 if (address & 1) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	778 genesis_context * gen = context->system;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	779 address &= 0xE;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	780 address >>= 1;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	781 gen->bank_regs[address] = value;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	782 if (!address) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	783 if (value & 1) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	784 context->mem_pointers[2] = NULL;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	785 } else {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	786 context->mem_pointers[2] = cart + 0x200000/2;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	787 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	788 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	789 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	790 return context;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	791 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	792
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	793 typedef struct bp_def {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	794 struct bp_def * next;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	795 uint32_t address;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	796 uint32_t index;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	797 } bp_def;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	798
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	799 bp_def * breakpoints = NULL;
366 836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	800 bp_def * zbreakpoints = NULL;
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	801 uint32_t bp_index = 0;
366 836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	802 uint32_t zbp_index = 0;
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	803
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	804 bp_def find_breakpoint(bp_def cur, uint32_t address)
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	805 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	806 while (*cur) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	807 if ((*cur)->address == address) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	808 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	809 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	810 cur = &((*cur)->next);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	811 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	812 return cur;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	813 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	814
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	815 bp_def find_breakpoint_idx(bp_def cur, uint32_t index)
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	816 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	817 while (*cur) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	818 if ((*cur)->index == index) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	819 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	820 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	821 cur = &((*cur)->next);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	822 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	823 return cur;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	824 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	825
372 5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	826 typedef struct disp_def {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	827 struct disp_def * next;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	828 char * param;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	829 uint32_t index;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	830 char format_char;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	831 } disp_def;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	832
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	833 disp_def * displays = NULL;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	834 disp_def * zdisplays = NULL;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	835 uint32_t disp_index = 0;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	836 uint32_t zdisp_index = 0;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	837
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	838 void add_display(disp_def ** head, uint32_t index, char format_char, char param)
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	839 {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	840 disp_def * ndisp = malloc(sizeof(*ndisp));
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	841 ndisp->format_char = format_char;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	842 ndisp->param = strdup(param);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	843 ndisp->next = *head;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	844 ndisp->index = *index++;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	845 *head = ndisp;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	846 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	847
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	848 void remove_display(disp_def ** head, uint32_t index)
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	849 {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	850 while (*head) {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	851 if ((*head)->index == index) {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	852 disp_def * del_disp = *head;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	853 *head = del_disp->next;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	854 free(del_disp->param);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	855 free(del_disp);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	856 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	857 head = &(*head)->next;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	858 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	859 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	860 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	861
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	862 char * find_param(char * buf)
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	863 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	864 for (; *buf; buf++) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	865 if (*buf == ' ') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	866 if (*(buf+1)) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	867 return buf+1;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	868 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	869 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	870 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	871 return NULL;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	872 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	873
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	874 void strip_nl(char * buf)
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	875 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	876 for(; *buf; buf++) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	877 if (*buf == '\n') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	878 *buf = 0;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	879 return;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	880 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	881 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	882 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	883
372 5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	884 void zdebugger_print(z80_context * context, char format_char, char * param)
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	885 {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	886 uint32_t value;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	887 char format[8];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	888 strcpy(format, "%s: %d\n");
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	889 switch (format_char)
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	890 {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	891 case 'x':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	892 case 'X':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	893 case 'd':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	894 case 'c':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	895 format[5] = format_char;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	896 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	897 case '\0':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	898 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	899 default:
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	900 fprintf(stderr, "Unrecognized format character: %c\n", format_char);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	901 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	902 switch (param[0])
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	903 {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	904 case 'a':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	905 if (param[1] == 'f') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	906 if(param[2] == '\'') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	907 value = context->alt_regs[Z80_A] << 8;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	908 value \|= context->alt_flags[ZF_S] << 7;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	909 value \|= context->alt_flags[ZF_Z] << 6;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	910 value \|= context->alt_flags[ZF_H] << 4;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	911 value \|= context->alt_flags[ZF_PV] << 2;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	912 value \|= context->alt_flags[ZF_N] << 1;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	913 value \|= context->alt_flags[ZF_C];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	914 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	915 value = context->regs[Z80_A] << 8;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	916 value \|= context->flags[ZF_S] << 7;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	917 value \|= context->flags[ZF_Z] << 6;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	918 value \|= context->flags[ZF_H] << 4;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	919 value \|= context->flags[ZF_PV] << 2;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	920 value \|= context->flags[ZF_N] << 1;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	921 value \|= context->flags[ZF_C];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	922 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	923 } else if(param[1] == '\'') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	924 value = context->alt_regs[Z80_A];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	925 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	926 value = context->regs[Z80_A];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	927 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	928 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	929 case 'b':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	930 if (param[1] == 'c') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	931 if(param[2] == '\'') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	932 value = context->alt_regs[Z80_B] << 8;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	933 value \|= context->alt_regs[Z80_C];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	934 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	935 value = context->regs[Z80_B] << 8;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	936 value \|= context->regs[Z80_C];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	937 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	938 } else if(param[1] == '\'') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	939 value = context->alt_regs[Z80_B];
392 1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	940 } else if(param[1] == 'a') {
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	941 value = context->bank_reg << 15;
372 5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	942 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	943 value = context->regs[Z80_B];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	944 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	945 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	946 case 'c':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	947 if(param[1] == '\'') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	948 value = context->alt_regs[Z80_C];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	949 } else if(param[1] == 'y') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	950 value = context->current_cycle;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	951 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	952 value = context->regs[Z80_C];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	953 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	954 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	955 case 'd':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	956 if (param[1] == 'e') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	957 if(param[2] == '\'') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	958 value = context->alt_regs[Z80_D] << 8;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	959 value \|= context->alt_regs[Z80_E];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	960 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	961 value = context->regs[Z80_D] << 8;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	962 value \|= context->regs[Z80_E];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	963 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	964 } else if(param[1] == '\'') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	965 value = context->alt_regs[Z80_D];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	966 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	967 value = context->regs[Z80_D];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	968 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	969 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	970 case 'e':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	971 if(param[1] == '\'') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	972 value = context->alt_regs[Z80_E];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	973 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	974 value = context->regs[Z80_E];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	975 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	976 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	977 case 'f':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	978 if(param[2] == '\'') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	979 value = context->alt_flags[ZF_S] << 7;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	980 value \|= context->alt_flags[ZF_Z] << 6;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	981 value \|= context->alt_flags[ZF_H] << 4;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	982 value \|= context->alt_flags[ZF_PV] << 2;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	983 value \|= context->alt_flags[ZF_N] << 1;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	984 value \|= context->alt_flags[ZF_C];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	985 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	986 value = context->flags[ZF_S] << 7;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	987 value \|= context->flags[ZF_Z] << 6;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	988 value \|= context->flags[ZF_H] << 4;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	989 value \|= context->flags[ZF_PV] << 2;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	990 value \|= context->flags[ZF_N] << 1;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	991 value \|= context->flags[ZF_C];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	992 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	993 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	994 case 'h':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	995 if (param[1] == 'l') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	996 if(param[2] == '\'') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	997 value = context->alt_regs[Z80_H] << 8;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	998 value \|= context->alt_regs[Z80_L];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	999 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1000 value = context->regs[Z80_H] << 8;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1001 value \|= context->regs[Z80_L];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1002 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1003 } else if(param[1] == '\'') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1004 value = context->alt_regs[Z80_H];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1005 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1006 value = context->regs[Z80_H];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1007 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1008 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1009 case 'l':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1010 if(param[1] == '\'') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1011 value = context->alt_regs[Z80_L];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1012 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1013 value = context->regs[Z80_L];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1014 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1015 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1016 case 'i':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1017 if(param[1] == 'x') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1018 if (param[2] == 'h') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1019 value = context->regs[Z80_IXH];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1020 } else if(param[2] == 'l') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1021 value = context->regs[Z80_IXL];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1022 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1023 value = context->regs[Z80_IXH] << 8;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1024 value \|= context->regs[Z80_IXL];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1025 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1026 } else if(param[1] == 'y') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1027 if (param[2] == 'h') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1028 value = context->regs[Z80_IYH];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1029 } else if(param[2] == 'l') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1030 value = context->regs[Z80_IYL];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1031 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1032 value = context->regs[Z80_IYH] << 8;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1033 value \|= context->regs[Z80_IYL];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1034 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1035 } else if(param[1] == 'n') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1036 value = context->int_cycle;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1037 } else if(param[1] == 'f' && param[2] == 'f' && param[3] == '1') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1038 value = context->iff1;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1039 } else if(param[1] == 'f' && param[2] == 'f' && param[3] == '2') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1040 value = context->iff2;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1041 } else {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1042 value = context->im;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1043 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1044 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1045 case 's':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1046 if (param[1] == 'p') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1047 value = context->sp;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1048 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1049 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1050 case '0':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1051 if (param[1] == 'x') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1052 uint16_t p_addr = strtol(param+2, NULL, 16);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1053 if (p_addr < 0x4000) {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1054 value = z80_ram[p_addr & 0x1FFF];
392 1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1055 } else if(p_addr >= 0x8000) {
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1056 uint32_t v_addr = context->bank_reg << 15;
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1057 v_addr += p_addr & 0x7FFF;
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1058 if (v_addr < 0x400000) {
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1059 value = cart[v_addr/2];
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1060 } else if(v_addr > 0xE00000) {
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1061 value = ram[(v_addr & 0xFFFF)/2];
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1062 }
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1063 if (v_addr & 1) {
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1064 value &= 0xFF;
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1065 } else {
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1066 value >>= 8;
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1067 }
372 5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1068 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1069 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1070 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1071 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1072 printf(format, param, value);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1073 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1074
366 836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1075 z80_context * zdebugger(z80_context * context, uint16_t address)
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1076 {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1077 static char last_cmd[1024];
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1078 char input_buf[1024];
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1079 static uint16_t branch_t;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1080 static uint16_t branch_f;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1081 z80inst inst;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1082 //Check if this is a user set breakpoint, or just a temporary one
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1083 bp_def ** this_bp = find_breakpoint(&zbreakpoints, address);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1084 if (*this_bp) {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1085 printf("Z80 Breakpoint %d hit\n", (*this_bp)->index);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1086 } else {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1087 zremove_breakpoint(context, address);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1088 }
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1089 uint8_t * pc;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1090 if (address < 0x4000) {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1091 pc = z80_ram + (address & 0x1FFF);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1092 } else if (address >= 0x8000) {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1093 if (context->bank_reg < (0x400000 >> 15)) {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1094 fprintf(stderr, "Entered Z80 debugger in banked memory address %X, which is not yet supported\n", address);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1095 exit(1);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1096 } else {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1097 fprintf(stderr, "Entered Z80 debugger in banked memory address %X, but the bank is not pointed to a cartridge address\n", address);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1098 exit(1);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1099 }
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1100 } else {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1101 fprintf(stderr, "Entered Z80 debugger at address %X\n", address);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1102 exit(1);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1103 }
372 5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1104 for (disp_def * cur = zdisplays; cur; cur = cur->next) {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1105 zdebugger_print(context, cur->format_char, cur->param);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1106 }
366 836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1107 uint8_t * after_pc = z80_decode(pc, &inst);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1108 z80_disasm(&inst, input_buf, address);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1109 printf("%X:\t%s\n", address, input_buf);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1110 uint16_t after = address + (after_pc-pc);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1111 int debugging = 1;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1112 while(debugging) {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1113 fputs(">", stdout);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1114 if (!fgets(input_buf, sizeof(input_buf), stdin)) {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1115 fputs("fgets failed", stderr);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1116 break;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1117 }
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1118 strip_nl(input_buf);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1119 //hitting enter repeats last command
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1120 if (input_buf[0]) {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1121 strcpy(last_cmd, input_buf);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1122 } else {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1123 strcpy(input_buf, last_cmd);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1124 }
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1125 char * param;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1126 char format[8];
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1127 uint32_t value;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1128 bp_def * new_bp;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1129 switch(input_buf[0])
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1130 {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1131 case 'a':
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1132 param = find_param(input_buf);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1133 if (!param) {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1134 fputs("a command requires a parameter\n", stderr);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1135 break;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1136 }
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1137 value = strtol(param, NULL, 16);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1138 zinsert_breakpoint(context, value, (uint8_t *)zdebugger);
392 1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1139 debugging = 0;
366 836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1140 break;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1141 case 'b':
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1142 param = find_param(input_buf);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1143 if (!param) {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1144 fputs("b command requires a parameter\n", stderr);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1145 break;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1146 }
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1147 value = strtol(param, NULL, 16);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1148 zinsert_breakpoint(context, value, (uint8_t *)zdebugger);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1149 new_bp = malloc(sizeof(bp_def));
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1150 new_bp->next = zbreakpoints;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1151 new_bp->address = value;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1152 new_bp->index = zbp_index++;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1153 zbreakpoints = new_bp;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1154 printf("Z80 Breakpoint %d set at %X\n", new_bp->index, value);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1155 break;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1156 case 'c':
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1157 puts("Continuing");
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1158 debugging = 0;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1159 break;
372 5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1160 case 'd':
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1161 if (input_buf[1] == 'i') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1162 char format_char = 0;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1163 for(int i = 2; input_buf[i] != 0 && input_buf[i] != ' '; i++) {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1164 if (input_buf[i] == '/') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1165 format_char = input_buf[i+1];
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1166 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1167 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1168 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1169 param = find_param(input_buf);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1170 if (!param) {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1171 fputs("display command requires a parameter\n", stderr);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1172 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1173 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1174 zdebugger_print(context, format_char, param);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1175 add_display(&zdisplays, &zdisp_index, format_char, param);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1176 } else if (input_buf[1] == 'e' \|\| input_buf[1] == ' ') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1177 param = find_param(input_buf);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1178 if (!param) {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1179 fputs("delete command requires a parameter\n", stderr);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1180 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1181 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1182 if (param[0] >= '0' && param[0] <= '9') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1183 value = atoi(param);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1184 this_bp = find_breakpoint_idx(&zbreakpoints, value);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1185 if (!*this_bp) {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1186 fprintf(stderr, "Breakpoint %d does not exist\n", value);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1187 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1188 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1189 new_bp = *this_bp;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1190 zremove_breakpoint(context, new_bp->address);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1191 *this_bp = new_bp->next;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1192 free(new_bp);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1193 } else if (param[0] == 'd') {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1194 param = find_param(param);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1195 if (!param) {
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1196 fputs("delete display command requires a parameter\n", stderr);
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1197 break;
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1198 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1199 remove_display(&zdisplays, atoi(param));
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1200 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1201 }
5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1202 break;
366 836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1203 case 'n':
392 1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1204 //TODO: Handle conditional branch instructions
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1205 if (inst.op == Z80_JP) {
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1206 if (inst.addr_mode == Z80_IMMED) {
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1207 after = inst.immed;
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1208 } else if (inst.ea_reg == Z80_HL) {
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1209 after = context->regs[Z80_H] << 8 \| context->regs[Z80_L];
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1210 } else if (inst.ea_reg == Z80_IX) {
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1211 after = context->regs[Z80_IXH] << 8 \| context->regs[Z80_IXL];
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1212 } else if (inst.ea_reg == Z80_IY) {
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1213 after = context->regs[Z80_IYH] << 8 \| context->regs[Z80_IYL];
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1214 }
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1215 } else if(inst.op == Z80_JR) {
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1216 after += inst.immed;
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1217 } else if(inst.op == Z80_RET) {
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1218 if (context->sp < 0x4000) {
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1219 after = z80_ram[context->sp & 0x1FFF] \| z80_ram[(context->sp+1) & 0x1FFF] << 8;
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1220 }
1b80b90399da Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 380 diff changeset	1221 }
366 836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1222 zinsert_breakpoint(context, after, (uint8_t *)zdebugger);
368 c9d2a2371f5e Make the n command in the Z80 debugger actually run the next instruction without needing a c command Mike Pavone <pavone@retrodev.com> parents: 366 diff changeset	1223 debugging = 0;
366 836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1224 break;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1225 case 'p':
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1226 param = find_param(input_buf);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1227 if (!param) {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1228 fputs("p command requires a parameter\n", stderr);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1229 break;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1230 }
372 5dcf7551bb36 Bunch of Z80 debugger improvements Mike Pavone <pavone@retrodev.com> parents: 368 diff changeset	1231 zdebugger_print(context, input_buf[1] == '/' ? input_buf[2] : 0, param);
366 836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1232 break;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1233 case 'q':
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1234 puts("Quitting");
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1235 exit(0);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1236 break;
395 0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1237 case 's': {
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1238 param = find_param(input_buf);
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1239 if (!param) {
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1240 fputs("s command requires a file name\n", stderr);
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1241 break;
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1242 }
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1243 FILE * f = fopen(param, "wb");
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1244 if (f) {
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1245 if(fwrite(z80_ram, 1, sizeof(z80_ram), f) != sizeof(z80_ram)) {
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1246 fputs("Error writing file\n", stderr);
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1247 }
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1248 fclose(f);
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1249 } else {
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1250 fprintf(stderr, "Could not open %s for writing\n", param);
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1251 }
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1252 break;
0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	1253 }
366 836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1254 default:
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1255 fprintf(stderr, "Unrecognized debugger command %s\n", input_buf);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1256 break;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1257 }
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1258 }
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1259 return context;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1260 }
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1261
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1262 m68k_context * debugger(m68k_context * context, uint32_t address)
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1263 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1264 static char last_cmd[1024];
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1265 char input_buf[1024];
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1266 static uint32_t branch_t;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1267 static uint32_t branch_f;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1268 m68kinst inst;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1269 //probably not necessary, but let's play it safe
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1270 address &= 0xFFFFFF;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1271 if (address == branch_t) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1272 bp_def ** f_bp = find_breakpoint(&breakpoints, branch_f);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1273 if (!*f_bp) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1274 remove_breakpoint(context, branch_f);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1275 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1276 branch_t = branch_f = 0;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1277 } else if(address == branch_f) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1278 bp_def ** t_bp = find_breakpoint(&breakpoints, branch_t);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1279 if (!*t_bp) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1280 remove_breakpoint(context, branch_t);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1281 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1282 branch_t = branch_f = 0;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1283 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1284 //Check if this is a user set breakpoint, or just a temporary one
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1285 bp_def ** this_bp = find_breakpoint(&breakpoints, address);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1286 if (*this_bp) {
366 836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1287 printf("68K Breakpoint %d hit\n", (*this_bp)->index);
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1288 } else {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1289 remove_breakpoint(context, address);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1290 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1291 uint16_t * pc;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1292 if (address < 0x400000) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1293 pc = cart + address/2;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1294 } else if(address > 0xE00000) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1295 pc = ram + (address & 0xFFFF)/2;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1296 } else {
366 836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1297 fprintf(stderr, "Entered 68K debugger at address %X\n", address);
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1298 exit(1);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1299 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1300 uint16_t * after_pc = m68k_decode(pc, &inst, address);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1301 m68k_disasm(&inst, input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1302 printf("%X: %s\n", address, input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1303 uint32_t after = address + (after_pc-pc)*2;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1304 int debugging = 1;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1305 while (debugging) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1306 fputs(">", stdout);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1307 if (!fgets(input_buf, sizeof(input_buf), stdin)) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1308 fputs("fgets failed", stderr);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1309 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1310 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1311 strip_nl(input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1312 //hitting enter repeats last command
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1313 if (input_buf[0]) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1314 strcpy(last_cmd, input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1315 } else {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1316 strcpy(input_buf, last_cmd);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1317 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1318 char * param;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1319 char format[8];
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1320 uint32_t value;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1321 bp_def * new_bp;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1322 switch(input_buf[0])
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1323 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1324 case 'c':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1325 puts("Continuing");
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1326 debugging = 0;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1327 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1328 case 'b':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1329 param = find_param(input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1330 if (!param) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1331 fputs("b command requires a parameter\n", stderr);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1332 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1333 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1334 value = strtol(param, NULL, 16);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1335 insert_breakpoint(context, value, (uint8_t *)debugger);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1336 new_bp = malloc(sizeof(bp_def));
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1337 new_bp->next = breakpoints;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1338 new_bp->address = value;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1339 new_bp->index = bp_index++;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1340 breakpoints = new_bp;
366 836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1341 printf("68K Breakpoint %d set at %X\n", new_bp->index, value);
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1342 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1343 case 'a':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1344 param = find_param(input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1345 if (!param) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1346 fputs("a command requires a parameter\n", stderr);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1347 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1348 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1349 value = strtol(param, NULL, 16);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1350 insert_breakpoint(context, value, (uint8_t *)debugger);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1351 debugging = 0;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1352 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1353 case 'd':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1354 param = find_param(input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1355 if (!param) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1356 fputs("b command requires a parameter\n", stderr);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1357 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1358 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1359 value = atoi(param);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1360 this_bp = find_breakpoint_idx(&breakpoints, value);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1361 if (!*this_bp) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1362 fprintf(stderr, "Breakpoint %d does not exist\n", value);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1363 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1364 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1365 new_bp = *this_bp;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1366 this_bp = (this_bp)->next;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1367 free(new_bp);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1368 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1369 case 'p':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1370 strcpy(format, "%s: %d\n");
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1371 if (input_buf[1] == '/') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1372 switch (input_buf[2])
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1373 {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1374 case 'x':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1375 case 'X':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1376 case 'd':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1377 case 'c':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1378 format[5] = input_buf[2];
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1379 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1380 default:
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1381 fprintf(stderr, "Unrecognized format character: %c\n", input_buf[2]);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1382 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1383 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1384 param = find_param(input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1385 if (!param) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1386 fputs("p command requires a parameter\n", stderr);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1387 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1388 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1389 if (param[0] == 'd' && param[1] >= '0' && param[1] <= '7') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1390 value = context->dregs[param[1]-'0'];
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1391 } else if (param[0] == 'a' && param[1] >= '0' && param[1] <= '7') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1392 value = context->aregs[param[1]-'0'];
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1393 } else if (param[0] == 'S' && param[1] == 'R') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1394 value = (context->status << 8);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1395 for (int flag = 0; flag < 5; flag++) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1396 value \|= context->flags[flag] << (4-flag);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1397 }
185 b204fbed4efe Add ability to print out current 68K cycle in debugger Mike Pavone <pavone@retrodev.com> parents: 184 diff changeset	1398 } else if(param[0] == 'c') {
b204fbed4efe Add ability to print out current 68K cycle in debugger Mike Pavone <pavone@retrodev.com> parents: 184 diff changeset	1399 value = context->current_cycle;
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1400 } else if (param[0] == '0' && param[1] == 'x') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1401 uint32_t p_addr = strtol(param+2, NULL, 16);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1402 value = read_dma_value(p_addr/2);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1403 } else {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1404 fprintf(stderr, "Unrecognized parameter to p: %s\n", param);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1405 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1406 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1407 printf(format, param, value);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1408 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1409 case 'n':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1410 //TODO: Deal with jmp, dbcc, rtr and rte
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1411 if (inst.op == M68K_RTS) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1412 after = (read_dma_value(context->aregs[7]/2) << 16) \| read_dma_value(context->aregs[7]/2 + 1);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1413 } else if(inst.op == M68K_BCC && inst.extra.cond != COND_FALSE) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1414 if (inst.extra.cond = COND_TRUE) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1415 after = inst.address + 2 + inst.src.params.immed;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1416 } else {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1417 branch_f = after;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1418 branch_t = inst.address + 2 + inst.src.params.immed;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1419 insert_breakpoint(context, branch_t, (uint8_t *)debugger);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1420 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1421 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1422 insert_breakpoint(context, after, (uint8_t *)debugger);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1423 debugging = 0;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1424 break;
327 1b00258b1f29 Added some basic VDP debugging features to debugger. Fixed DMA enable bug Mike Pavone <pavone@retrodev.com> parents: 321 diff changeset	1425 case 'v': {
1b00258b1f29 Added some basic VDP debugging features to debugger. Fixed DMA enable bug Mike Pavone <pavone@retrodev.com> parents: 321 diff changeset	1426 genesis_context * gen = context->system;
1b00258b1f29 Added some basic VDP debugging features to debugger. Fixed DMA enable bug Mike Pavone <pavone@retrodev.com> parents: 321 diff changeset	1427 //VDP debug commands
1b00258b1f29 Added some basic VDP debugging features to debugger. Fixed DMA enable bug Mike Pavone <pavone@retrodev.com> parents: 321 diff changeset	1428 switch(input_buf[1])
1b00258b1f29 Added some basic VDP debugging features to debugger. Fixed DMA enable bug Mike Pavone <pavone@retrodev.com> parents: 321 diff changeset	1429 {
1b00258b1f29 Added some basic VDP debugging features to debugger. Fixed DMA enable bug Mike Pavone <pavone@retrodev.com> parents: 321 diff changeset	1430 case 's':
1b00258b1f29 Added some basic VDP debugging features to debugger. Fixed DMA enable bug Mike Pavone <pavone@retrodev.com> parents: 321 diff changeset	1431 vdp_print_sprite_table(gen->vdp);
1b00258b1f29 Added some basic VDP debugging features to debugger. Fixed DMA enable bug Mike Pavone <pavone@retrodev.com> parents: 321 diff changeset	1432 break;
1b00258b1f29 Added some basic VDP debugging features to debugger. Fixed DMA enable bug Mike Pavone <pavone@retrodev.com> parents: 321 diff changeset	1433 case 'r':
1b00258b1f29 Added some basic VDP debugging features to debugger. Fixed DMA enable bug Mike Pavone <pavone@retrodev.com> parents: 321 diff changeset	1434 vdp_print_reg_explain(gen->vdp);
1b00258b1f29 Added some basic VDP debugging features to debugger. Fixed DMA enable bug Mike Pavone <pavone@retrodev.com> parents: 321 diff changeset	1435 break;
1b00258b1f29 Added some basic VDP debugging features to debugger. Fixed DMA enable bug Mike Pavone <pavone@retrodev.com> parents: 321 diff changeset	1436 }
1b00258b1f29 Added some basic VDP debugging features to debugger. Fixed DMA enable bug Mike Pavone <pavone@retrodev.com> parents: 321 diff changeset	1437 break;
1b00258b1f29 Added some basic VDP debugging features to debugger. Fixed DMA enable bug Mike Pavone <pavone@retrodev.com> parents: 321 diff changeset	1438 }
366 836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1439 case 'z': {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1440 genesis_context * gen = context->system;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1441 //Z80 debug commands
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1442 switch(input_buf[1])
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1443 {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1444 case 'b':
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1445 param = find_param(input_buf);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1446 if (!param) {
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1447 fputs("zb command requires a parameter\n", stderr);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1448 break;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1449 }
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1450 value = strtol(param, NULL, 16);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1451 zinsert_breakpoint(gen->z80, value, (uint8_t *)zdebugger);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1452 new_bp = malloc(sizeof(bp_def));
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1453 new_bp->next = zbreakpoints;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1454 new_bp->address = value;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1455 new_bp->index = zbp_index++;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1456 zbreakpoints = new_bp;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1457 printf("Z80 Breakpoint %d set at %X\n", new_bp->index, value);
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1458 break;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1459 }
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1460 break;
836585d389b8 Partial implementation of Z80 debugger Mike Pavone <pavone@retrodev.com> parents: 364 diff changeset	1461 }
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1462 case 'q':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1463 puts("Quitting");
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1464 exit(0);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1465 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1466 default:
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1467 fprintf(stderr, "Unrecognized debugger command %s\n", input_buf);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1468 break;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1469 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1470 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1471 return context;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1472 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1473
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1474 #define GST_68K_REGS 0x80
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1475 #define GST_68K_REG_SIZE (0xDA-GST_68K_REGS)
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1476 #define GST_68K_PC_OFFSET (0xC8-GST_68K_REGS)
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1477 #define GST_68K_SR_OFFSET (0xD0-GST_68K_REGS)
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1478 #define GST_68K_USP_OFFSET (0xD2-GST_68K_REGS)
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1479 #define GST_68K_SSP_OFFSET (0xD6-GST_68K_REGS)
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1480 #define GST_68K_RAM 0x2478
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1481 #define GST_Z80_REGS 0x404
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1482 #define GST_Z80_REG_SIZE (0x440-GST_Z80_REGS)
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1483 #define GST_Z80_RAM 0x474
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1484
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1485 uint32_t read_le_32(uint8_t * data)
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1486 {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1487 return data[3] << 24 \| data[2] << 16 \| data[1] << 8 \| data[0];
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1488 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1489
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1490 uint16_t read_le_16(uint8_t * data)
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1491 {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1492 return data[1] << 8 \| data[0];
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1493 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1494
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1495 uint16_t read_be_16(uint8_t * data)
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1496 {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1497 return data[0] << 8 \| data[1];
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1498 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1499
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1500 uint32_t m68k_load_gst(m68k_context * context, FILE * gstfile)
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1501 {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1502 uint8_t buffer[4096];
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1503 fseek(gstfile, GST_68K_REGS, SEEK_SET);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1504 if (fread(buffer, 1, GST_68K_REG_SIZE, gstfile) != GST_68K_REG_SIZE) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1505 fputs("Failed to read 68K registers from savestate\n", stderr);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1506 return 0;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1507 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1508 uint8_t * curpos = buffer;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1509 for (int i = 0; i < 8; i++) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1510 context->dregs[i] = read_le_32(curpos);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1511 curpos += sizeof(uint32_t);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1512 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1513 for (int i = 0; i < 8; i++) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1514 context->aregs[i] = read_le_32(curpos);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1515 curpos += sizeof(uint32_t);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1516 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1517 uint32_t pc = read_le_32(buffer + GST_68K_PC_OFFSET);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1518 uint16_t sr = read_le_16(buffer + GST_68K_SR_OFFSET);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1519 context->status = sr >> 8;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1520 for (int flag = 4; flag >= 0; flag--) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1521 context->flags[flag] = sr & 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1522 sr >>= 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1523 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1524 if (context->status & (1 << 5)) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1525 context->aregs[8] = read_le_32(buffer + GST_68K_USP_OFFSET);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1526 } else {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1527 context->aregs[8] = read_le_32(buffer + GST_68K_SSP_OFFSET);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1528 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1529 fseek(gstfile, GST_68K_RAM, SEEK_SET);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1530 for (int i = 0; i < (32*1024);) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1531 if (fread(buffer, 1, sizeof(buffer), gstfile) != sizeof(buffer)) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1532 fputs("Failed to read 68K RAM from savestate\n", stderr);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1533 return 0;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1534 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1535 for(curpos = buffer; curpos < (buffer + sizeof(buffer)); curpos += sizeof(uint16_t)) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1536 context->mem_pointers[1][i++] = read_be_16(curpos);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1537 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1538 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1539 return pc;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1540 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1541
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1542 uint8_t z80_load_gst(z80_context * context, FILE * gstfile)
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1543 {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1544 uint8_t regdata[GST_Z80_REG_SIZE];
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1545 fseek(gstfile, GST_Z80_REGS, SEEK_SET);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1546 if (fread(regdata, 1, sizeof(regdata), gstfile) != sizeof(regdata)) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1547 fputs("Failed to read Z80 registers from savestate\n", stderr);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1548 return 0;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1549 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1550 uint8_t * curpos = regdata;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1551 uint8_t f = *(curpos++);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1552 context->flags[ZF_C] = f & 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1553 f >>= 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1554 context->flags[ZF_N] = f & 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1555 f >>= 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1556 context->flags[ZF_PV] = f & 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1557 f >>= 2;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1558 context->flags[ZF_H] = f & 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1559 f >>= 2;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1560 context->flags[ZF_Z] = f & 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1561 f >>= 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1562 context->flags[ZF_S] = f;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1563
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1564 context->regs[Z80_A] = *curpos;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1565 curpos += 3;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1566 for (int reg = Z80_C; reg <= Z80_IYH; reg++) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1567 context->regs[reg++] = *(curpos++);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1568 context->regs[reg] = *curpos;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1569 curpos += 3;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1570 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1571 uint16_t pc = read_le_16(curpos);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1572 curpos += 4;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1573 context->sp = read_le_16(curpos);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1574 curpos += 4;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1575 f = *(curpos++);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1576 context->alt_flags[ZF_C] = f & 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1577 f >>= 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1578 context->alt_flags[ZF_N] = f & 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1579 f >>= 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1580 context->alt_flags[ZF_PV] = f & 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1581 f >>= 2;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1582 context->alt_flags[ZF_H] = f & 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1583 f >>= 2;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1584 context->alt_flags[ZF_Z] = f & 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1585 f >>= 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1586 context->alt_flags[ZF_S] = f;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1587 context->alt_regs[Z80_A] = *curpos;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1588 curpos += 3;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1589 for (int reg = Z80_C; reg <= Z80_H; reg++) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1590 context->alt_regs[reg++] = *(curpos++);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1591 context->alt_regs[reg] = *curpos;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1592 curpos += 3;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1593 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1594 context->regs[Z80_I] = *curpos;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1595 curpos += 2;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1596 context->iff1 = context->iff2 = *curpos;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1597 curpos += 2;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1598 reset = !*(curpos++);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1599 busreq = *curpos;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1600 curpos += 3;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1601 uint32_t bank = read_le_32(curpos);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1602 if (bank < 0x400000) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1603 context->mem_pointers[1] = context->mem_pointers[2] + bank;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1604 } else {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1605 context->mem_pointers[1] = NULL;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1606 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1607 context->bank_reg = bank >> 15;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1608 fseek(gstfile, GST_Z80_RAM, SEEK_SET);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1609 if(fread(context->mem_pointers[0], 1, 81024, gstfile) != (81024)) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1610 fputs("Failed to read Z80 RAM from savestate\n", stderr);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1611 return 0;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1612 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1613 context->native_pc = z80_get_native_address_trans(context, pc);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1614 return 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1615 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1616
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1617 uint32_t load_gst(genesis_context * gen, char * fname)
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1618 {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1619 FILE * gstfile = fopen(fname, "rb");
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1620 if (!gstfile) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1621 fprintf(stderr, "Could not open file %s for reading\n", fname);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1622 goto error;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1623 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1624 char ident[5];
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1625 if (fread(ident, 1, sizeof(ident), gstfile) != sizeof(ident)) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1626 fprintf(stderr, "Could not read ident code from %s\n", fname);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1627 goto error_close;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1628 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1629 if (memcmp(ident, "GST\xE0\x40", 3) != 0) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1630 fprintf(stderr, "%s doesn't appear to be a GST savestate. The ident code is %c%c%c\\x%X\\x%X instead of GST\\xE0\\x40.\n", fname, ident[0], ident[1], ident[2], ident[3], ident[4]);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1631 goto error_close;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1632 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1633 uint32_t pc = m68k_load_gst(gen->m68k, gstfile);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1634 if (!pc) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1635 goto error_close;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1636 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1637 if (!vdp_load_gst(gen->vdp, gstfile)) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1638 goto error_close;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1639 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1640 if (!ym_load_gst(gen->ym, gstfile)) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1641 goto error_close;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1642 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1643 if (!z80_load_gst(gen->z80, gstfile)) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1644 goto error_close;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1645 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1646 gen->ports[0].control = 0x40;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1647 gen->ports[1].control = 0x40;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1648 adjust_int_cycle(gen->m68k, gen->vdp);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1649 fclose(gstfile);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1650 return pc;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1651
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1652 error_close:
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1653 fclose(gstfile);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1654 error:
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1655 return 0;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1656 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1657
351 2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1658 #define ROM_END 0x1A4
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1659 #define RAM_ID 0x1B0
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1660 #define RAM_FLAGS 0x1B2
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1661 #define RAM_START 0x1B4
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1662 #define RAM_END 0x1B8
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1663 #define MAX_MAP_CHUNKS (4+7+1)
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1664 #define RAM_FLAG_MASK 0x1800
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1665
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1666 const memmap_chunk static_map[] = {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1667 {0, 0x400000, 0xFFFFFF, 0, MMAP_READ, cart,
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	1668 NULL, NULL, NULL, NULL},
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	1669 {0xE00000, 0x1000000, 0xFFFF, 0, MMAP_READ \| MMAP_WRITE \| MMAP_CODE, ram,
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	1670 NULL, NULL, NULL, NULL},
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	1671 {0xC00000, 0xE00000, 0x1FFFFF, 0, 0, NULL,
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	1672 (read_16_fun)vdp_port_read, (write_16_fun)vdp_port_write,
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	1673 (read_8_fun)vdp_port_read_b, (write_8_fun)vdp_port_write_b},
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	1674 {0xA00000, 0xA12000, 0x1FFFF, 0, 0, NULL,
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	1675 (read_16_fun)io_read_w, (write_16_fun)io_write_w,
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	1676 (read_8_fun)io_read, (write_8_fun)io_write}
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	1677 };
351 2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1678
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1679 char * sram_filename;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1680 genesis_context * genesis;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1681 void save_sram()
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1682 {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1683 FILE * f = fopen(sram_filename, "wb");
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1684 if (!f) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1685 fprintf(stderr, "Failed to open SRAM file %s for writing\n", sram_filename);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1686 return;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1687 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1688 uint32_t size = genesis->save_ram_mask+1;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1689 if (genesis->save_flags != RAM_FLAG_BOTH) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1690 size/= 2;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1691 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1692 fwrite(genesis->save_ram, 1, size, f);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1693 fclose(f);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1694 printf("Saved SRAM to %s\n", sram_filename);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1695 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1696
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1697 void init_run_cpu(genesis_context * gen, int debug, FILE * address_log, char * statefile)
351 2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1698 {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1699 m68k_context context;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1700 x86_68k_options opts;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1701 gen->m68k = &context;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1702 memmap_chunk memmap[MAX_MAP_CHUNKS];
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1703 uint32_t num_chunks;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1704 void * initial_mapped = NULL;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1705 gen->save_ram = NULL;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1706 //TODO: Handle carts larger than 4MB
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1707 //TODO: Handle non-standard mappers
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1708 uint32_t size;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1709 if ((cart[RAM_ID/2] & 0xFF) == 'A' && (cart[RAM_ID/2] >> 8) == 'R') {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1710 //Cart has save RAM
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1711 uint32_t rom_end = ((cart[ROM_END/2] << 16) \| cart[ROM_END/2+1]) + 1;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1712 uint32_t ram_start = (cart[RAM_START/2] << 16) \| cart[RAM_START/2+1];
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1713 uint32_t ram_end = (cart[RAM_END/2] << 16) \| cart[RAM_END/2+1];
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1714 uint16_t ram_flags = cart[RAM_FLAGS/2];
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1715 gen->save_flags = ram_flags & RAM_FLAG_MASK;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1716 memset(memmap, 0, sizeof(memmap_chunk)*2);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1717 if (ram_start >= rom_end) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1718 memmap[0].end = rom_end;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1719 memmap[0].mask = 0xFFFFFF;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1720 memmap[0].flags = MMAP_READ;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1721 memmap[0].buffer = cart;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1722
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1723 ram_start &= 0xFFFFFE;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1724 ram_end \|= 1;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1725 memmap[1].start = ram_start;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1726 gen->save_ram_mask = memmap[1].mask = ram_end-ram_start;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1727 ram_end += 1;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1728 memmap[1].end = ram_end;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1729 memmap[1].flags = MMAP_READ \| MMAP_WRITE;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1730 size = ram_end-ram_start;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1731 if ((ram_flags & RAM_FLAG_MASK) == RAM_FLAG_ODD) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1732 memmap[1].flags \|= MMAP_ONLY_ODD;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1733 size /= 2;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1734 } else if((ram_flags & RAM_FLAG_MASK) == RAM_FLAG_EVEN) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1735 memmap[1].flags \|= MMAP_ONLY_EVEN;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1736 size /= 2;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1737 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1738 memmap[1].buffer = gen->save_ram = malloc(size);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1739
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1740 memcpy(memmap+2, static_map+1, sizeof(static_map)-sizeof(static_map[0]));
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1741 num_chunks = sizeof(static_map)/sizeof(memmap_chunk)+1;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1742 } else {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1743 //Assume the standard Sega mapper for now
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1744 memmap[0].end = 0x200000;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1745 memmap[0].mask = 0xFFFFFF;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1746 memmap[0].flags = MMAP_READ;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1747 memmap[0].buffer = cart;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1748
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1749 memmap[1].start = 0x200000;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1750 memmap[1].end = 0x400000;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1751 memmap[1].mask = 0x1FFFFF;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1752 ram_start &= 0xFFFFFE;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1753 ram_end \|= 1;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1754 gen->save_ram_mask = ram_end-ram_start;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1755 memmap[1].flags = MMAP_READ \| MMAP_PTR_IDX \| MMAP_FUNC_NULL;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1756 memmap[1].ptr_index = 2;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1757 memmap[1].read_16 = (read_16_fun)read_sram_w;//these will only be called when mem_pointers[2] == NULL
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1758 memmap[1].read_8 = (read_8_fun)read_sram_b;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1759 memmap[1].write_16 = (write_16_fun)write_sram_area_w;//these will be called all writes to the area
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1760 memmap[1].write_8 = (write_8_fun)write_sram_area_b;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1761 memcpy(memmap+2, static_map+1, sizeof(static_map)-sizeof(static_map[0]));
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1762 num_chunks = sizeof(static_map)/sizeof(memmap_chunk)+1;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1763 memset(memmap+num_chunks, 0, sizeof(memmap[num_chunks]));
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1764 memmap[num_chunks].start = 0xA13000;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1765 memmap[num_chunks].end = 0xA13100;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1766 memmap[num_chunks].mask = 0xFF;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1767 memmap[num_chunks].write_16 = (write_16_fun)write_bank_reg_w;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1768 memmap[num_chunks].write_8 = (write_8_fun)write_bank_reg_b;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1769 num_chunks++;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1770 ram_end++;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1771 size = ram_end-ram_start;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1772 if ((ram_flags & RAM_FLAG_MASK) != RAM_FLAG_BOTH) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1773 size /= 2;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1774 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1775 gen->save_ram = malloc(size);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1776 memmap[1].buffer = initial_mapped = cart + 0x200000/2;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1777 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1778 } else {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1779 memcpy(memmap, static_map, sizeof(static_map));
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1780 num_chunks = sizeof(static_map)/sizeof(memmap_chunk);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1781 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1782 if (gen->save_ram) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1783 memset(gen->save_ram, 0, size);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1784 FILE * f = fopen(sram_filename, "rb");
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1785 if (f) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1786 uint32_t read = fread(gen->save_ram, 1, size, f);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1787 fclose(f);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1788 if (read > 0) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1789 printf("Loaded SRAM from %s\n", sram_filename);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1790 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1791 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1792 atexit(save_sram);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1793 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1794 init_x86_68k_opts(&opts, memmap, num_chunks);
211 464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	1795 opts.address_log = address_log;
464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	1796 init_68k_context(&context, opts.native_code_map, &opts);
464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	1797
288 a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	1798 context.video_context = gen->vdp;
a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	1799 context.system = gen;
211 464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	1800 //cartridge ROM
464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	1801 context.mem_pointers[0] = cart;
342 13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	1802 context.target_cycle = context.sync_cycle = mclks_per_frame/MCLKS_PER_68K;
211 464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	1803 //work RAM
464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	1804 context.mem_pointers[1] = ram;
351 2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1805 //save RAM/map
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1806 context.mem_pointers[2] = initial_mapped;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1807 context.mem_pointers[3] = (uint16_t *)gen->save_ram;
211 464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	1808 uint32_t address;
464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	1809 address = cart[2] << 16 \| cart[3];
464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	1810 translate_m68k_stream(address, &context);
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1811 if (statefile) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1812 uint32_t pc = load_gst(gen, statefile);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1813 if (!pc) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1814 exit(1);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1815 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1816 if (debug) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1817 insert_breakpoint(&context, pc, (uint8_t *)debugger);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1818 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1819 start_68k_context(&context, pc);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1820 } else {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1821 if (debug) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1822 insert_breakpoint(&context, address, (uint8_t *)debugger);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1823 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1824 m68k_reset(&context);
211 464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	1825 }
464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	1826 }
464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	1827
340 58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1828 char title[64];
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1829
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1830 #define TITLE_START 0x150
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1831 #define TITLE_END (TITLE_START+48)
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1832
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1833 void update_title()
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1834 {
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1835 uint16_t *last = cart + TITLE_END/2 - 1;
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1836 while(last > cart + TITLE_START/2 && *last == 0x2020)
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1837 {
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1838 last--;
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1839 }
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1840 uint16_t *start = cart + TITLE_START/2;
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1841 char *cur = title;
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1842 char last_char = ' ';
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1843 for (; start != last; start++)
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1844 {
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1845 if ((last_char != ' ' \|\| (start >> 8) != ' ') && (start >> 8) < 0x80) {
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1846 (cur++) = start >> 8;
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1847 last_char = *start >> 8;
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1848 }
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1849 if (last_char != ' ' \|\| (start & 0xFF) != ' ' && (start & 0xFF) < 0x80) {
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1850 (cur++) = start;
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1851 last_char = *start & 0xFF;
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1852 }
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1853 }
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1854 (cur++) = start >> 8;
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1855 if ((*start & 0xFF) != ' ') {
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1856 (cur++) = start;
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1857 }
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1858 strcpy(cur, " - BlastEm");
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1859 }
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1860
341 6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1861 #define REGION_START 0x1F0
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1862
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1863 int detect_specific_region(char region)
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1864 {
346 aff29d50afd5 Fix a region detection bug Mike Pavone <pavone@retrodev.com> parents: 345 diff changeset	1865 return (cart[REGION_START/2] & 0xFF) == region \|\| (cart[REGION_START/2] >> 8) == region \|\| (cart[REGION_START/2+1] & 0xFF) == region;
341 6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1866 }
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1867
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1868 void detect_region()
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1869 {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	1870 if (detect_specific_region('U')\|\| detect_specific_region('B') \|\| detect_specific_region('4')) {
341 6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1871 version_reg = NO_DISK \| USA;
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1872 } else if (detect_specific_region('J')) {
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1873 version_reg = NO_DISK \| JAP;
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	1874 } else if (detect_specific_region('E') \|\| detect_specific_region('A')) {
341 6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1875 version_reg = NO_DISK \| EUR;
434 f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1876 } else {
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1877 char * def_region = tern_find_ptr(config, "default_region");
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1878 if (def_region) {
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1879 switch(*def_region)
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1880 {
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1881 case 'j':
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1882 case 'J':
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1883 version_reg = NO_DISK \| JAP;
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1884 break;
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1885 case 'u':
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1886 case 'U':
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1887 version_reg = NO_DISK \| USA;
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1888 break;
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1889 case 'e':
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1890 case 'E':
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1891 version_reg = NO_DISK \| EUR;
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1892 break;
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1893 }
f0631c85a90b Read default region from config file Mike Pavone <pavone@retrodev.com> parents: 433 diff changeset	1894 }
341 6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1895 }
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1896 }
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1897
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1898 int main(int argc, char ** argv)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1899 {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1900 if (argc < 2) {
430 7f84090ab1cd Add config file parser and default config file Mike Pavone <pavone@retrodev.com> parents: 425 diff changeset	1901 fputs("Usage: blastem FILENAME [options]\n", stderr);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1902 return 1;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1903 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1904 if(!load_rom(argv[1])) {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1905 fprintf(stderr, "Failed to open %s for reading\n", argv[1]);
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1906 return 1;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1907 }
430 7f84090ab1cd Add config file parser and default config file Mike Pavone <pavone@retrodev.com> parents: 425 diff changeset	1908 config = load_config(argv[0]);
341 6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1909 detect_region();
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1910 int width = -1;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1911 int height = -1;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1912 int debug = 0;
407 c3abc4ada43d Add support for logging YM2612 channels to WAVE files Mike Pavone <pavone@retrodev.com> parents: 405 diff changeset	1913 int ym_log = 0;
197 7c227a8ec53d Add instruction address logging to translator and support for reading an address log to the disassembler Mike Pavone <pavone@retrodev.com> parents: 195 diff changeset	1914 FILE *address_log = NULL;
425 8b3ae850d1c4 Forgot to null initialize the statfile pointer Mike Pavone <pavone@retrodev.com> parents: 424 diff changeset	1915 char * statefile = NULL;
444 cc754a309ead Add fullscreen support and add a keybinding for exiting the emulator Mike Pavone <pavone@retrodev.com> parents: 434 diff changeset	1916 uint8_t fullscreen = 0;
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1917 for (int i = 2; i < argc; i++) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1918 if (argv[i][0] == '-') {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1919 switch(argv[i][1]) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1920 case 'd':
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1921 debug = 1;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1922 break;
338 5c34a9c39394 Re-enable frame limit, but add a command line flag to disable it Mike Pavone <pavone@retrodev.com> parents: 336 diff changeset	1923 case 'f':
444 cc754a309ead Add fullscreen support and add a keybinding for exiting the emulator Mike Pavone <pavone@retrodev.com> parents: 434 diff changeset	1924 fullscreen = 1;
338 5c34a9c39394 Re-enable frame limit, but add a command line flag to disable it Mike Pavone <pavone@retrodev.com> parents: 336 diff changeset	1925 break;
197 7c227a8ec53d Add instruction address logging to translator and support for reading an address log to the disassembler Mike Pavone <pavone@retrodev.com> parents: 195 diff changeset	1926 case 'l':
7c227a8ec53d Add instruction address logging to translator and support for reading an address log to the disassembler Mike Pavone <pavone@retrodev.com> parents: 195 diff changeset	1927 address_log = fopen("address.log", "w");
7c227a8ec53d Add instruction address logging to translator and support for reading an address log to the disassembler Mike Pavone <pavone@retrodev.com> parents: 195 diff changeset	1928 break;
215 2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	1929 case 'v':
2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	1930 headless = 1;
2b1c2c28b261 Added headless flag to avoid initializing SDL and opening a window when running tests. Mike Pavone <pavone@retrodev.com> parents: 211 diff changeset	1931 break;
265 c6d12878ea93 Add -n flag for disabling the Z80 core Mike Pavone <pavone@retrodev.com> parents: 264 diff changeset	1932 case 'n':
c6d12878ea93 Add -n flag for disabling the Z80 core Mike Pavone <pavone@retrodev.com> parents: 264 diff changeset	1933 z80_enabled = 0;
c6d12878ea93 Add -n flag for disabling the Z80 core Mike Pavone <pavone@retrodev.com> parents: 264 diff changeset	1934 break;
341 6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1935 case 'r':
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1936 i++;
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1937 if (i >= argc) {
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1938 fputs("-r must be followed by region (J, U or E)\n", stderr);
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1939 return 1;
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1940 }
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1941 switch (argv[i][0])
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1942 {
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1943 case 'j':
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1944 case 'J':
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1945 version_reg = NO_DISK \| JAP;
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1946 break;
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1947 case 'u':
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1948 case 'U':
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1949 version_reg = NO_DISK \| USA;
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1950 break;
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1951 case 'e':
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1952 case 'E':
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1953 version_reg = NO_DISK \| EUR;
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1954 break;
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1955 default:
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1956 fprintf(stderr, "'%c' is not a valid region character for the -r option\n", argv[i][0]);
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1957 return 1;
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1958 }
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1959 break;
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1960 case 's':
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1961 i++;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1962 if (i >= argc) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1963 fputs("-s must be followed by a savestate filename\n", stderr);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1964 return 1;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1965 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1966 statefile = argv[i];
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1967 break;
407 c3abc4ada43d Add support for logging YM2612 channels to WAVE files Mike Pavone <pavone@retrodev.com> parents: 405 diff changeset	1968 case 'y':
c3abc4ada43d Add support for logging YM2612 channels to WAVE files Mike Pavone <pavone@retrodev.com> parents: 405 diff changeset	1969 ym_log = 1;
c3abc4ada43d Add support for logging YM2612 channels to WAVE files Mike Pavone <pavone@retrodev.com> parents: 405 diff changeset	1970 break;
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1971 default:
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1972 fprintf(stderr, "Unrecognized switch %s\n", argv[i]);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1973 return 1;
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1974 }
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1975 } else if (width < 0) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1976 width = atoi(argv[i]);
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1977 } else if (height < 0) {
ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1978 height = atoi(argv[i]);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1979 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1980 }
340 58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1981 update_title();
433 ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1982 int def_width = 0;
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1983 char *config_width = tern_find_ptr(config, "videowidth");
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1984 if (config_width) {
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1985 def_width = atoi(config_width);
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1986 }
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1987 if (!def_width) {
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1988 def_width = 640;
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1989 }
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1990 width = width < 320 ? def_width : width;
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1991 height = height < 240 ? (width/320) * 240 : height;
354 15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	1992 uint32_t fps = 60;
342 13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	1993 if (version_reg & 0x40) {
13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	1994 mclks_per_frame = MCLKS_LINE * LINES_PAL;
354 15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	1995 fps = 50;
15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	1996 }
15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	1997 if (!headless) {
444 cc754a309ead Add fullscreen support and add a keybinding for exiting the emulator Mike Pavone <pavone@retrodev.com> parents: 434 diff changeset	1998 render_init(width, height, title, fps, fullscreen);
342 13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	1999 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	2000 vdp_context v_context;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	2001
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	2002 init_vdp_context(&v_context);
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	2003
288 a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	2004 ym2612_context y_context;
407 c3abc4ada43d Add support for logging YM2612 channels to WAVE files Mike Pavone <pavone@retrodev.com> parents: 405 diff changeset	2005 ym_init(&y_context, render_sample_rate(), fps == 60 ? MCLKS_NTSC : MCLKS_PAL, MCLKS_PER_YM, render_audio_buffer(), ym_log ? YM_OPT_WAVE_LOG : 0);
288 a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	2006
354 15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	2007 psg_context p_context;
380 1c8d74f2ab0b Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run. Mike Pavone <pavone@retrodev.com> parents: 374 diff changeset	2008 psg_init(&p_context, render_sample_rate(), fps == 60 ? MCLKS_NTSC : MCLKS_PAL, MCLKS_PER_PSG, render_audio_buffer());
354 15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	2009
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	2010 z80_context z_context;
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	2011 x86_z80_options z_opts;
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	2012 init_x86_z80_opts(&z_opts);
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	2013 init_z80_context(&z_context, &z_opts);
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	2014
421 d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	2015 genesis_context gen;
d0cacb4ade0b Move IO code to a separate file and do a tiny bit of refactoring Mike Pavone <pavone@retrodev.com> parents: 418 diff changeset	2016 memset(&gen, 0, sizeof(gen));
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	2017
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	2018 z_context.system = &gen;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	2019 z_context.mem_pointers[0] = z80_ram;
342 13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region Mike Pavone <pavone@retrodev.com> parents: 341 diff changeset	2020 z_context.sync_cycle = z_context.target_cycle = mclks_per_frame/MCLKS_PER_Z80;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	2021 z_context.int_cycle = CYCLE_NEVER;
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	2022 z_context.mem_pointers[1] = z_context.mem_pointers[2] = (uint8_t *)cart;
625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	2023
288 a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	2024 gen.z80 = &z_context;
a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	2025 gen.vdp = &v_context;
a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	2026 gen.ym = &y_context;
354 15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	2027 gen.psg = &p_context;
351 2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2028 genesis = &gen;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2029
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2030 int fname_size = strlen(argv[1]);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2031 sram_filename = malloc(fname_size+6);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2032 memcpy(sram_filename, argv[1], fname_size);
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2033 int i;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2034 for (i = fname_size-1; fname_size >= 0; --i) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2035 if (sram_filename[i] == '.') {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2036 strcpy(sram_filename + i + 1, "sram");
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2037 break;
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2038 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2039 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2040 if (i < 0) {
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2041 strcpy(sram_filename + fname_size, ".sram");
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	2042 }
398 c26e48a93fa3 Make keybindings data driven so they can be populated from a config file later Mike Pavone <pavone@retrodev.com> parents: 395 diff changeset	2043 set_keybindings();
288 a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run. Mike Pavone <pavone@retrodev.com> parents: 280 diff changeset	2044
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	2045 init_run_cpu(&gen, debug, address_log, statefile);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	2046 return 0;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	2047 }

Mercurial > repos > blastem

annotate blastem.c @ 446:1e828ed04a7c