repos/blastem: blastem.c annotate

annotate blastem.c @ 906:8cf57c6558ed

Dividing by FPS_INTERVAL does not make senese as the division was to convert milliseconds to seconds

author	Michael Pavone <pavone@retrodev.com>
date	Sat, 28 Nov 2015 20:05:15 -0800
parents	90d54ccf9557
children	a5a51465f8b0

rev	line source
467 140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING Mike Pavone <pavone@retrodev.com> parents: 464 diff changeset	1 /*
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING Mike Pavone <pavone@retrodev.com> parents: 464 diff changeset	2 Copyright 2013 Michael Pavone
469 5f3344d0d42f Fix argument handling so that the rom filename does not need to be specified first Mike Pavone <pavone@retrodev.com> parents: 467 diff changeset	3 This file is part of BlastEm.
467 140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING Mike Pavone <pavone@retrodev.com> parents: 464 diff changeset	4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING Mike Pavone <pavone@retrodev.com> parents: 464 diff changeset	5 */
883 9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	6 #include <stdio.h>
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	7 #include <stdlib.h>
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	8 #include <string.h>
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	9 #include <ctype.h>
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	10
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	11 #include "68kinst.h"
569 9b7fcf748be0 Rename x86_68k_options and m68k_to_x86.h to m68k_options and m68k_core.h respectively Michael Pavone <pavone@retrodev.com> parents: 565 diff changeset	12 #include "m68k_core.h"
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	13 #include "z80_to_x86.h"
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	14 #include "mem.h"
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	15 #include "vdp.h"
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	16 #include "render.h"
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	17 #include "blastem.h"
515 1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work. Mike Pavone <pavone@retrodev.com> parents: 510 diff changeset	18 #include "gdb_remote.h"
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	19 #include "gst.h"
496 6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere Mike Pavone <pavone@retrodev.com> parents: 488 diff changeset	20 #include "util.h"
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	21 #include "romdb.h"
832 0433fdd9ba66 Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals Michael Pavone <pavone@retrodev.com> parents: 819 diff changeset	22 #include "terminal.h"
883 9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	23 #include "arena.h"
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	24
815 1f3ddeaacaee Change version to 0.3.X so intermediate source builds do not get an inappropriate version number Michael Pavone <pavone@retrodev.com> parents: 808 diff changeset	25 #define BLASTEM_VERSION "0.3.X"
464 226ed16b1fb6 Added version flag Mike Pavone <pavone@retrodev.com> parents: 463 diff changeset	26
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	27 #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	28 #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	29
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	30 #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	31 #define MCLKS_PER_YM MCLKS_PER_68K
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	32 #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	33 #define MCLKS_PER_PSG (MCLKS_PER_Z80*16)
785 0e5f14d9a579 Prep for 0.3.0 release Michael Pavone <pavone@retrodev.com> parents: 778 diff changeset	34 #define DEFAULT_SYNC_INTERVAL MCLKS_LINE
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	35
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	36 //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	37 #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	38 #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	39
483 3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	40 #define MAX_SOUND_CYCLES 100000
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	41
860 213c3b5160d0 Default to fullscreen on Android since windowed mode does not make sense there Michael Pavone <pavone@retrodev.com> parents: 846 diff changeset	42 #ifdef __ANDROID__
213c3b5160d0 Default to fullscreen on Android since windowed mode does not make sense there Michael Pavone <pavone@retrodev.com> parents: 846 diff changeset	43 #define FULLSCREEN_DEFAULT 1
213c3b5160d0 Default to fullscreen on Android since windowed mode does not make sense there Michael Pavone <pavone@retrodev.com> parents: 846 diff changeset	44 #else
213c3b5160d0 Default to fullscreen on Android since windowed mode does not make sense there Michael Pavone <pavone@retrodev.com> parents: 846 diff changeset	45 #define FULLSCREEN_DEFAULT 0
213c3b5160d0 Default to fullscreen on Android since windowed mode does not make sense there Michael Pavone <pavone@retrodev.com> parents: 846 diff changeset	46 #endif
213c3b5160d0 Default to fullscreen on Android since windowed mode does not make sense there Michael Pavone <pavone@retrodev.com> parents: 846 diff changeset	47
776 cbf97d335444 Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works. Michael Pavone <pavone@retrodev.com> parents: 774 diff changeset	48 uint16_t *cart;
883 9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	49 uint16_t *ram;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	50 uint8_t z80_ram[Z80_RAM_BYTES];
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	51
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	52 int headless = 0;
505 b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment. Michael Pavone <pavone@retrodev.com> parents: 501 diff changeset	53 int exit_after = 0;
265 c6d12878ea93 Add -n flag for disabling the Z80 core Mike Pavone <pavone@retrodev.com> parents: 264 diff changeset	54 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	55 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	56
430 7f84090ab1cd Add config file parser and default config file Mike Pavone <pavone@retrodev.com> parents: 425 diff changeset	57 tern_node * config;
7f84090ab1cd Add config file parser and default config file Mike Pavone <pavone@retrodev.com> parents: 425 diff changeset	58
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	59 #ifndef MIN
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	60 #define MIN(a,b) ((a) < (b) ? (a) : (b))
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	61 #endif
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	62
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	63 #define SMD_HEADER_SIZE 512
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	64 #define SMD_MAGIC1 0x03
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	65 #define SMD_MAGIC2 0xAA
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	66 #define SMD_MAGIC3 0xBB
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	67 #define SMD_BLOCK_SIZE 0x4000
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	68
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	69 int load_smd_rom(long filesize, FILE * f)
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	70 {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	71 uint8_t block[SMD_BLOCK_SIZE];
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	72 filesize -= SMD_HEADER_SIZE;
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	73 fseek(f, SMD_HEADER_SIZE, SEEK_SET);
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	74
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	75 uint16_t * dst = cart;
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	76 int rom_size = filesize;
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	77 while (filesize > 0) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	78 fread(block, 1, SMD_BLOCK_SIZE, f);
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	79 for (uint8_t low = block, high = (block+SMD_BLOCK_SIZE/2), *end = block+SMD_BLOCK_SIZE; high < end; high++, low++) {
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	80 (dst++) = low << 8 \| *high;
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	81 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	82 filesize -= SMD_BLOCK_SIZE;
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	83 }
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	84 return filesize;
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	85 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	86
776 cbf97d335444 Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works. Michael Pavone <pavone@retrodev.com> parents: 774 diff changeset	87 void byteswap_rom(int filesize)
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	88 {
776 cbf97d335444 Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works. Michael Pavone <pavone@retrodev.com> parents: 774 diff changeset	89 for(unsigned short * cur = cart; cur - cart < filesize/2; ++cur)
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	90 {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	91 cur = (cur >> 8) \| (*cur << 8);
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	92 }
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	93 }
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	94
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	95 int load_rom(char * filename)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	96 {
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	97 uint8_t header[10];
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	98 FILE * f = fopen(filename, "rb");
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	99 if (!f) {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	100 return 0;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	101 }
776 cbf97d335444 Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works. Michael Pavone <pavone@retrodev.com> parents: 774 diff changeset	102 if (sizeof(header) != fread(header, 1, sizeof(header), f)) {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	103 fatal_error("Error reading from %s\n", filename);
776 cbf97d335444 Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works. Michael Pavone <pavone@retrodev.com> parents: 774 diff changeset	104 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	105 fseek(f, 0, SEEK_END);
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	106 long filesize = ftell(f);
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	107 fseek(f, 0, SEEK_SET);
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	108 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	109 int i;
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	110 for (i = 3; i < 8; i++) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	111 if (header[i] != 0) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	112 break;
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	113 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	114 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	115 if (i == 8) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	116 if (header[2]) {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	117 fatal_error("%s is a split SMD ROM which is not currently supported", filename);
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	118 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	119 return load_smd_rom(filesize, f);
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	120 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	121 }
777 79b10b421d3c Support large flat-mapped ROMs like Bad Apple or that Mortal Kombat hack Michael Pavone <pavone@retrodev.com> parents: 776 diff changeset	122 cart = malloc(nearest_pow2(filesize));
776 cbf97d335444 Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works. Michael Pavone <pavone@retrodev.com> parents: 774 diff changeset	123 if (filesize != fread(cart, 1, filesize, f)) {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	124 fatal_error("Error reading from %s\n", filename);
776 cbf97d335444 Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works. Michael Pavone <pavone@retrodev.com> parents: 774 diff changeset	125 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	126 fclose(f);
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	127 return filesize;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	128 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	129
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	130 uint16_t read_dma_value(uint32_t address)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	131 {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	132 //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	133 if (address < 0x200000) {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	134 return cart[address];
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	135 } else if(address >= 0x700000) {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	136 return ram[address & 0x7FFF];
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	137 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	138 //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	139 return 0;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	140 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	141
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	142 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	143 {
717 22dbdf50d33c Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation. Michael Pavone <pavone@retrodev.com> parents: 700 diff changeset	144 //static int old_int_cycle = CYCLE_NEVER;
696 0b2242bbc84a Added config option to allow specifying a max sync cycle smaller than the end of frame Michael Pavone <pavone@retrodev.com> parents: 695 diff changeset	145 genesis_context *gen = context->system;
0b2242bbc84a Added config option to allow specifying a max sync cycle smaller than the end of frame Michael Pavone <pavone@retrodev.com> parents: 695 diff changeset	146 if (context->sync_cycle - context->current_cycle > gen->max_cycles) {
0b2242bbc84a Added config option to allow specifying a max sync cycle smaller than the end of frame Michael Pavone <pavone@retrodev.com> parents: 695 diff changeset	147 context->sync_cycle = context->current_cycle + gen->max_cycles;
0b2242bbc84a Added config option to allow specifying a max sync cycle smaller than the end of frame Michael Pavone <pavone@retrodev.com> parents: 695 diff changeset	148 }
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	149 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	150 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	151 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	152 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	153 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	154 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	155 }
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	156 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	157 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	158 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	159 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	160 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	161 context->int_num = 4;
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	162
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	163 }
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	164 }
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	165 }
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	166 }
846 98d7b6073163 Implement interrupt latency. Fixes Sesame Street: Counting Cafe and gives accurate results in my test ROM Michael Pavone <pavone@retrodev.com> parents: 844 diff changeset	167 if (context->int_cycle > context->current_cycle) {
98d7b6073163 Implement interrupt latency. Fixes Sesame Street: Counting Cafe and gives accurate results in my test ROM Michael Pavone <pavone@retrodev.com> parents: 844 diff changeset	168 context->int_pending = 0;
98d7b6073163 Implement interrupt latency. Fixes Sesame Street: Counting Cafe and gives accurate results in my test ROM Michael Pavone <pavone@retrodev.com> parents: 844 diff changeset	169 }
717 22dbdf50d33c Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation. Michael Pavone <pavone@retrodev.com> parents: 700 diff changeset	170 /*if (context->int_cycle != old_int_cycle) {
22dbdf50d33c Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation. Michael Pavone <pavone@retrodev.com> parents: 700 diff changeset	171 printf("int cycle changed to: %d, level: %d @ %d(%d), frame: %d, vcounter: %d, hslot: %d, mask: %d, hint_counter: %d\n", context->int_cycle, context->int_num, v_context->cycles, context->current_cycle, v_context->frame, v_context->vcounter, v_context->hslot, context->status & 0x7, v_context->hint_counter);
22dbdf50d33c Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation. Michael Pavone <pavone@retrodev.com> parents: 700 diff changeset	172 old_int_cycle = context->int_cycle;
22dbdf50d33c Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation. Michael Pavone <pavone@retrodev.com> parents: 700 diff changeset	173 }*/
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	174
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	175 context->target_cycle = context->int_cycle < context->sync_cycle ? context->int_cycle : context->sync_cycle;
872 7022ba865cfd Initial work for allowing loading a ROM from menu Michael Pavone <pavone@retrodev.com> parents: 861 diff changeset	176 if (context->should_return) {
7022ba865cfd Initial work for allowing loading a ROM from menu Michael Pavone <pavone@retrodev.com> parents: 861 diff changeset	177 context->target_cycle = context->current_cycle;
891 90d54ccf9557 Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus. Michael Pavone <pavone@retrodev.com> parents: 889 diff changeset	178 } else if (context->target_cycle < context->current_cycle) {
90d54ccf9557 Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus. Michael Pavone <pavone@retrodev.com> parents: 889 diff changeset	179 //Changes to SR can result in an interrupt cycle that's in the past
90d54ccf9557 Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus. Michael Pavone <pavone@retrodev.com> parents: 889 diff changeset	180 //This can cause issues with the implementation of STOP though
90d54ccf9557 Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus. Michael Pavone <pavone@retrodev.com> parents: 889 diff changeset	181 context->target_cycle = context->current_cycle;
872 7022ba865cfd Initial work for allowing loading a ROM from menu Michael Pavone <pavone@retrodev.com> parents: 861 diff changeset	182 }
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	183 /*printf("Cyc: %d, Trgt: %d, Int Cyc: %d, Int: %d, Mask: %X, V: %d, H: %d, HICount: %d, HReg: %d, Line: %d\n",
32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	184 context->current_cycle, context->target_cycle, context->int_cycle, context->int_num, (context->status & 0x7),
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	185 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	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	187
198 209a37eed3e7 Add support for breaking into the debugger while game is running Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	188 int break_on_sync = 0;
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	189 int save_state = 0;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	190
280 9ee64039ddeb Fix bank register update Mike Pavone <pavone@retrodev.com> parents: 279 diff changeset	191 //#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	192 #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	193 #define dprintf printf
271 969ee17471c5 Protect debug prints for busreq/reset regs with appropriate macros Mike Pavone <pavone@retrodev.com> parents: 268 diff changeset	194 #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	195 #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	196 #define dprintf
271 969ee17471c5 Protect debug prints for busreq/reset regs with appropriate macros Mike Pavone <pavone@retrodev.com> parents: 268 diff changeset	197 #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	198 #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	199
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	200 #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	201
668 5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	202 void z80_next_int_pulse(z80_context * z_context)
5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	203 {
682 7ed1dbb48f61 Merge Michael Pavone <pavone@retrodev.com> parents: 680 559 diff changeset	204 genesis_context * gen = z_context->system;
668 5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	205 z_context->int_pulse_start = vdp_next_vint_z80(gen->vdp);
670 f4f3e74b0ce6 Restore Z80 interrupt pulse duration and make a small improvement to debug print output Michael Pavone <pavone@retrodev.com> parents: 669 diff changeset	206 z_context->int_pulse_end = z_context->int_pulse_start + Z80_VINT_DURATION * MCLKS_PER_Z80;
682 7ed1dbb48f61 Merge Michael Pavone <pavone@retrodev.com> parents: 680 559 diff changeset	207 }
668 5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	208
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	209 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	210 {
565 9324f721efa6 Add a separate flag/define for disabling the Z80 at compile time to ease refactoring Michael Pavone <pavone@retrodev.com> parents: 558 diff changeset	211 #ifndef NO_Z80
668 5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	212 if (z80_enabled) {
5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	213 z80_run(z_context, mclks);
548 a3afee2271ce Initial work on the x86-32 target Michael Pavone <pavone@retrodev.com> parents: 534 diff changeset	214 } else
a3afee2271ce Initial work on the x86-32 target Michael Pavone <pavone@retrodev.com> parents: 534 diff changeset	215 #endif
a3afee2271ce Initial work on the x86-32 target Michael Pavone <pavone@retrodev.com> parents: 534 diff changeset	216 {
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	217 z_context->current_cycle = mclks;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	218 }
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	219 }
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	220
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	221 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	222 {
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	223 //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);
483 3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	224 while (target > gen->psg->cycles && target - gen->psg->cycles > MAX_SOUND_CYCLES) {
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	225 uint32_t cur_target = gen->psg->cycles + MAX_SOUND_CYCLES;
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	226 //printf("Running PSG to cycle %d\n", cur_target);
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	227 psg_run(gen->psg, cur_target);
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	228 //printf("Running YM-2612 to cycle %d\n", cur_target);
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	229 ym_run(gen->ym, cur_target);
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	230 }
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	231 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	232 ym_run(gen->ym, target);
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	233
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	234 //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	235 }
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	236
889 2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	237 #define REFRESH_INTERVAL 130
2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	238 #define REFRESH_DELAY 2
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	239 uint32_t last_frame_num;
889 2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	240 uint32_t last_sync_cycle;
2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	241 uint32_t refresh_counter;
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	242 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	243 {
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	244 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	245 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	246 z80_context * z_context = gen->z80;
889 2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	247 //lame estimation of refresh cycle delay
891 90d54ccf9557 Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus. Michael Pavone <pavone@retrodev.com> parents: 889 diff changeset	248 if (!gen->bus_busy) {
90d54ccf9557 Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus. Michael Pavone <pavone@retrodev.com> parents: 889 diff changeset	249 refresh_counter += context->current_cycle - last_sync_cycle;
90d54ccf9557 Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus. Michael Pavone <pavone@retrodev.com> parents: 889 diff changeset	250 context->current_cycle += REFRESH_DELAY * MCLKS_PER_68K * (refresh_counter / (MCLKS_PER_68K * REFRESH_INTERVAL));
90d54ccf9557 Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus. Michael Pavone <pavone@retrodev.com> parents: 889 diff changeset	251 refresh_counter = refresh_counter % (MCLKS_PER_68K * REFRESH_INTERVAL);
90d54ccf9557 Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus. Michael Pavone <pavone@retrodev.com> parents: 889 diff changeset	252 }
889 2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	253
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	254 uint32_t mclks = context->current_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	255 sync_z80(z_context, mclks);
695 e1345921e481 Indentation fixup Michael Pavone <pavone@retrodev.com> parents: 693 diff changeset	256 sync_sound(gen, mclks);
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	257 vdp_run_context(v_context, mclks);
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	258 if (v_context->frame != last_frame_num) {
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	259 //printf("reached frame end %d \| MCLK Cycles: %d, Target: %d, VDP cycles: %d, vcounter: %d, hslot: %d\n", last_frame_num, mclks, gen->frame_end, v_context->cycles, v_context->vcounter, v_context->hslot);
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	260 last_frame_num = v_context->frame;
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	261
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	262 if (!headless) {
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	263 break_on_sync \|= wait_render_frame(v_context, frame_limit);
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	264 } else if(exit_after){
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	265 --exit_after;
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	266 if (!exit_after) {
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	267 exit(0);
505 b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment. Michael Pavone <pavone@retrodev.com> parents: 501 diff changeset	268 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	269 }
832 0433fdd9ba66 Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals Michael Pavone <pavone@retrodev.com> parents: 819 diff changeset	270
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	271 vdp_adjust_cycles(v_context, mclks);
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	272 io_adjust_cycles(gen->ports, context->current_cycle, mclks);
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	273 io_adjust_cycles(gen->ports+1, context->current_cycle, mclks);
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	274 io_adjust_cycles(gen->ports+2, context->current_cycle, mclks);
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	275 context->current_cycle -= mclks;
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	276 z80_adjust_cycles(z_context, mclks);
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	277 gen->ym->current_cycle -= mclks;
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	278 gen->psg->cycles -= mclks;
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	279 if (gen->ym->write_cycle != CYCLE_NEVER) {
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	280 gen->ym->write_cycle = gen->ym->write_cycle >= mclks ? gen->ym->write_cycle - mclks : 0;
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	281 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	282 }
700 72ab94527a8a Tiny cleanup Michael Pavone <pavone@retrodev.com> parents: 697 diff changeset	283 gen->frame_end = vdp_cycles_to_frame_end(v_context);
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	284 context->sync_cycle = gen->frame_end;
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	285 //printf("Set sync cycle to: %d @ %d, vcounter: %d, hslot: %d\n", context->sync_cycle, context->current_cycle, v_context->vcounter, v_context->hslot);
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	286 if (context->int_ack) {
718 eaba6789f316 Update vscroll latch implementation to be more in line with what Eke-Eke has observed. Revert the change to vdp_cycles_to_line because it breaks hints on line 0. H-Int timing is still a little messed up, but the previous change made things worse. Michael Pavone <pavone@retrodev.com> parents: 717 diff changeset	287 //printf("acknowledging %d @ %d:%d, vcounter: %d, hslot: %d\n", context->int_ack, context->current_cycle, v_context->cycles, v_context->vcounter, v_context->hslot);
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	288 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	289 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	290 }
721 20be7d01e312 Better handling of savestate and debug break events with "uncooperative" games/demos Michael Pavone <pavone@retrodev.com> parents: 719 diff changeset	291 if (!address && (break_on_sync \|\| save_state)) {
20be7d01e312 Better handling of savestate and debug break events with "uncooperative" games/demos Michael Pavone <pavone@retrodev.com> parents: 719 diff changeset	292 context->sync_cycle = context->current_cycle + 1;
20be7d01e312 Better handling of savestate and debug break events with "uncooperative" games/demos Michael Pavone <pavone@retrodev.com> parents: 719 diff changeset	293 }
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	294 adjust_int_cycle(context, v_context);
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	295 if (address) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	296 if (break_on_sync) {
695 e1345921e481 Indentation fixup Michael Pavone <pavone@retrodev.com> parents: 693 diff changeset	297 break_on_sync = 0;
e1345921e481 Indentation fixup Michael Pavone <pavone@retrodev.com> parents: 693 diff changeset	298 debugger(context, address);
e1345921e481 Indentation fixup Michael Pavone <pavone@retrodev.com> parents: 693 diff changeset	299 }
736 535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	300 if (save_state && (z_context->pc \|\| (!z_context->reset && !z_context->busreq))) {
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	301 save_state = 0;
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	302 //advance Z80 core to the start of an instruction
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	303 while (!z_context->pc)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	304 {
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	305 sync_z80(z_context, z_context->current_cycle + MCLKS_PER_Z80);
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	306 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	307 save_gst(gen, "savestate.gst", address);
721 20be7d01e312 Better handling of savestate and debug break events with "uncooperative" games/demos Michael Pavone <pavone@retrodev.com> parents: 719 diff changeset	308 puts("Saved state to savestate.gst");
736 535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	309 } else if(save_state) {
535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	310 context->sync_cycle = context->current_cycle + 1;
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	311 }
198 209a37eed3e7 Add support for breaking into the debugger while game is running Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	312 }
889 2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	313 last_sync_cycle = context->current_cycle;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	314 return context;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	315 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	316
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	317 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	318 {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	319 if (vdp_port & 0x2700E0) {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	320 fatal_error("machine freeze due to write to address %X\n", 0xC00000 \| vdp_port);
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	321 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	322 vdp_port &= 0x1F;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	323 //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	324 sync_components(context, 0);
508 b976c6d6e5fb Initial attempt at emulating extended bank area access delays when 68K bus is busy with VDP stuff. Also emulate the extra delay on the second access of a word-wide read to the bank area. Needs work as it seems to break stuff. Michael Pavone <pavone@retrodev.com> parents: 505 diff changeset	325 genesis_context * gen = context->system;
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	326 vdp_context *v_context = gen->vdp;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	327 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	328 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	329 uint32_t before_cycle = v_context->cycles;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	330 if (vdp_port < 4) {
832 0433fdd9ba66 Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals Michael Pavone <pavone@retrodev.com> parents: 819 diff changeset	331
149 139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	332 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	333 while(v_context->flags & FLAG_DMA_RUN) {
696 0b2242bbc84a Added config option to allow specifying a max sync cycle smaller than the end of frame Michael Pavone <pavone@retrodev.com> parents: 695 diff changeset	334 vdp_run_dma_done(v_context, gen->frame_end);
0b2242bbc84a Added config option to allow specifying a max sync cycle smaller than the end of frame Michael Pavone <pavone@retrodev.com> parents: 695 diff changeset	335 if (v_context->cycles >= gen->frame_end) {
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	336 context->current_cycle = v_context->cycles;
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	337 gen->bus_busy = 1;
534 c641006da28e Properly sync hardware when frame end is reached during DMA Mike Pavone <pavone@retrodev.com> parents: 531 diff changeset	338 sync_components(context, 0);
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	339 gen->bus_busy = 0;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	340 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	341 }
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	342 //context->current_cycle = v_context->cycles;
149 139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	343 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	344 } 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	345 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	346 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	347 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	348 while(v_context->flags & FLAG_DMA_RUN) {
696 0b2242bbc84a Added config option to allow specifying a max sync cycle smaller than the end of frame Michael Pavone <pavone@retrodev.com> parents: 695 diff changeset	349 vdp_run_dma_done(v_context, gen->frame_end);
0b2242bbc84a Added config option to allow specifying a max sync cycle smaller than the end of frame Michael Pavone <pavone@retrodev.com> parents: 695 diff changeset	350 if (v_context->cycles >= gen->frame_end) {
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	351 context->current_cycle = v_context->cycles;
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	352 gen->bus_busy = 1;
534 c641006da28e Properly sync hardware when frame end is reached during DMA Mike Pavone <pavone@retrodev.com> parents: 531 diff changeset	353 sync_components(context, 0);
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	354 gen->bus_busy = 0;
149 139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	355 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	356 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	357 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	358 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	359 } else {
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	360 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	361 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	362 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	363 } else {
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	364 context->sync_cycle = gen->frame_end = vdp_cycles_to_frame_end(v_context);
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	365 //printf("Set sync cycle to: %d @ %d, vcounter: %d, hslot: %d\n", context->sync_cycle, context->current_cycle, v_context->vcounter, v_context->hslot);
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	366 adjust_int_cycle(context, v_context);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	367 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	368 } else {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	369 fatal_error("Illegal write to HV Counter port %X\n", vdp_port);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	370 }
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	371 if (v_context->cycles != before_cycle) {
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	372 //printf("68K paused for %d (%d) cycles at cycle %d (%d) for write\n", v_context->cycles - context->current_cycle, v_context->cycles - before_cycle, context->current_cycle, before_cycle);
889 2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	373 last_sync_cycle = context->current_cycle = v_context->cycles;
680 4996369f1463 Some small synchronization improvements that do not seem to fix anything Michael Pavone <pavone@retrodev.com> parents: 679 diff changeset	374 //Lock the Z80 out of the bus until the VDP access is complete
4996369f1463 Some small synchronization improvements that do not seem to fix anything Michael Pavone <pavone@retrodev.com> parents: 679 diff changeset	375 gen->bus_busy = 1;
4996369f1463 Some small synchronization improvements that do not seem to fix anything Michael Pavone <pavone@retrodev.com> parents: 679 diff changeset	376 sync_z80(gen->z80, v_context->cycles);
4996369f1463 Some small synchronization improvements that do not seem to fix anything Michael Pavone <pavone@retrodev.com> parents: 679 diff changeset	377 gen->bus_busy = 0;
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	378 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	379 } 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	380 psg_write(gen->psg, value);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	381 } else {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	382 //TODO: Implement undocumented test register(s)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	383 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	384 return context;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	385 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	386
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	387 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	388 {
357 fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	389 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	390 }
fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	391
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	392 void * z80_vdp_port_write(uint32_t vdp_port, void * vcontext, uint8_t value)
357 fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	393 {
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	394 z80_context * context = vcontext;
357 fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	395 genesis_context * gen = context->system;
660 e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	396 vdp_port &= 0xFF;
358 9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	397 if (vdp_port & 0xE0) {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	398 fatal_error("machine freeze due to write to Z80 address %X\n", 0x7F00 \| vdp_port);
358 9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	399 }
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	400 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	401 //These probably won't currently interact well with the 68K accessing the VDP
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	402 vdp_run_context(gen->vdp, context->current_cycle);
358 9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	403 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	404 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	405 } 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	406 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	407 } else {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	408 fatal_error("Illegal write to HV Counter port %X\n", vdp_port);
358 9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	409 }
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	410 } else if (vdp_port < 0x18) {
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	411 sync_sound(gen, context->current_cycle);
358 9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	412 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	413 } else {
470 541c1ae8abf3 Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM. Mike Pavone <pavone@retrodev.com> parents: 469 diff changeset	414 vdp_test_port_write(gen->vdp, value);
358 9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	415 }
357 fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	416 return context;
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	417 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	418
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	419 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	420 {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	421 if (vdp_port & 0x2700E0) {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	422 fatal_error("machine freeze due to read from address %X\n", 0xC00000 \| vdp_port);
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	423 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	424 vdp_port &= 0x1F;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	425 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	426 sync_components(context, 0);
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	427 genesis_context *gen = context->system;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	428 vdp_context * v_context = gen->vdp;
470 541c1ae8abf3 Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM. Mike Pavone <pavone@retrodev.com> parents: 469 diff changeset	429 uint32_t before_cycle = v_context->cycles;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	430 if (vdp_port < 0x10) {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	431 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	432 value = vdp_data_port_read(v_context);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	433 } 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	434 value = vdp_control_port_read(v_context);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	435 } else {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	436 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	437 //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	438 }
470 541c1ae8abf3 Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM. Mike Pavone <pavone@retrodev.com> parents: 469 diff changeset	439 } else if (vdp_port < 0x18){
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	440 fatal_error("Illegal read from PSG port %X\n", vdp_port);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	441 } else {
470 541c1ae8abf3 Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM. Mike Pavone <pavone@retrodev.com> parents: 469 diff changeset	442 value = vdp_test_port_read(v_context);
541c1ae8abf3 Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM. Mike Pavone <pavone@retrodev.com> parents: 469 diff changeset	443 }
541c1ae8abf3 Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM. Mike Pavone <pavone@retrodev.com> parents: 469 diff changeset	444 if (v_context->cycles != before_cycle) {
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	445 //printf("68K paused for %d (%d) cycles at cycle %d (%d) for read\n", v_context->cycles - context->current_cycle, v_context->cycles - before_cycle, context->current_cycle, before_cycle);
889 2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	446 last_sync_cycle = context->current_cycle = v_context->cycles;
680 4996369f1463 Some small synchronization improvements that do not seem to fix anything Michael Pavone <pavone@retrodev.com> parents: 679 diff changeset	447 //Lock the Z80 out of the bus until the VDP access is complete
4996369f1463 Some small synchronization improvements that do not seem to fix anything Michael Pavone <pavone@retrodev.com> parents: 679 diff changeset	448 genesis_context *gen = context->system;
4996369f1463 Some small synchronization improvements that do not seem to fix anything Michael Pavone <pavone@retrodev.com> parents: 679 diff changeset	449 gen->bus_busy = 1;
4996369f1463 Some small synchronization improvements that do not seem to fix anything Michael Pavone <pavone@retrodev.com> parents: 679 diff changeset	450 sync_z80(gen->z80, v_context->cycles);
4996369f1463 Some small synchronization improvements that do not seem to fix anything Michael Pavone <pavone@retrodev.com> parents: 679 diff changeset	451 gen->bus_busy = 0;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	452 }
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	453 return value;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	454 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	455
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	456 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	457 {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	458 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	459 if (vdp_port & 1) {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	460 return value;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	461 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	462 return value >> 8;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	463 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	464 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	465
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	466 uint8_t z80_vdp_port_read(uint32_t vdp_port, void * vcontext)
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	467 {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	468 z80_context * context = vcontext;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	469 if (vdp_port & 0xE0) {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	470 fatal_error("machine freeze due to read from Z80 address %X\n", 0x7F00 \| vdp_port);
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	471 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	472 genesis_context * gen = context->system;
736 535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	473 //VDP access goes over the 68K bus like a bank area access
535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	474 //typical delay from bus arbitration
535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	475 context->current_cycle += 3 * MCLKS_PER_Z80;
535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	476 //TODO: add cycle for an access right after a previous one
535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	477 //TODO: Below cycle time is an estimate based on the time between 68K !BG goes low and Z80 !MREQ goes high
535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	478 // Needs a new logic analyzer capture to get the actual delay on the 68K side
535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	479 gen->m68k->current_cycle += 8 * MCLKS_PER_68K;
832 0433fdd9ba66 Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals Michael Pavone <pavone@retrodev.com> parents: 819 diff changeset	480
0433fdd9ba66 Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals Michael Pavone <pavone@retrodev.com> parents: 819 diff changeset	481
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	482 vdp_port &= 0x1F;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	483 uint16_t ret;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	484 if (vdp_port < 0x10) {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	485 //These probably won't currently interact well with the 68K accessing the VDP
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	486 vdp_run_context(gen->vdp, context->current_cycle);
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	487 if (vdp_port < 4) {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	488 ret = vdp_data_port_read(gen->vdp);
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	489 } else if (vdp_port < 8) {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	490 ret = vdp_control_port_read(gen->vdp);
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	491 } else {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	492 fatal_error("Illegal write to HV Counter port %X\n", vdp_port);
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	493 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	494 } else {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	495 //TODO: Figure out the correct value today
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	496 ret = 0xFFFF;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	497 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	498 return vdp_port & 1 ? ret : ret >> 8;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	499 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	500
279 6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	501 uint32_t zram_counter = 0;
6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	502
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	503 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	504 {
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	505 genesis_context * gen = context->system;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	506 if (location < 0x10000) {
844 74e161fe7d39 Small tweaks to timing of 68K/Z80 interactions based on latest tests Michael Pavone <pavone@retrodev.com> parents: 837 diff changeset	507 //Access to Z80 memory incurs a one 68K cycle wait state
74e161fe7d39 Small tweaks to timing of 68K/Z80 interactions based on latest tests Michael Pavone <pavone@retrodev.com> parents: 837 diff changeset	508 context->current_cycle += MCLKS_PER_68K;
668 5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	509 if (!z80_enabled \|\| z80_get_busack(gen->z80, context->current_cycle)) {
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	510 location &= 0x7FFF;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	511 if (location < 0x4000) {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	512 z80_ram[location & 0x1FFF] = value;
565 9324f721efa6 Add a separate flag/define for disabling the Z80 at compile time to ease refactoring Michael Pavone <pavone@retrodev.com> parents: 558 diff changeset	513 #ifndef NO_Z80
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	514 z80_handle_code_write(location & 0x1FFF, gen->z80);
548 a3afee2271ce Initial work on the x86-32 target Michael Pavone <pavone@retrodev.com> parents: 534 diff changeset	515 #endif
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	516 } else if (location < 0x6000) {
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	517 sync_sound(gen, context->current_cycle);
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	518 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	519 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	520 } 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	521 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	522 } 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	523 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	524 }
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	525 } 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	526 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	527 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	528 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	529 } 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	530 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	531 }
395 0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	532 } else {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	533 fatal_error("68K write to unhandled Z80 address %X\n", location);
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	534 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	535 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	536 } else {
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	537 location &= 0x1FFF;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	538 if (location < 0x100) {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	539 switch(location/2)
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	540 {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	541 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	542 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	543 break;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	544 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	545 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	546 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	547 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	548 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	549 break;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	550 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	551 gen->ports[0].control = value;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	552 break;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	553 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	554 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	555 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	556 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	557 gen->ports[2].control = value;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	558 break;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	559 }
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	560 } else {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	561 if (location == 0x1100) {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	562 if (value & 1) {
271 969ee17471c5 Protect debug prints for busreq/reset regs with appropriate macros Mike Pavone <pavone@retrodev.com> parents: 268 diff changeset	563 dputs("bus requesting Z80");
668 5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	564 if (z80_enabled) {
5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	565 z80_assert_busreq(gen->z80, context->current_cycle);
677 687c1dd3bcb9 Fake busack when Z80 is disabled Michael Pavone <pavone@retrodev.com> parents: 672 diff changeset	566 } else {
687c1dd3bcb9 Fake busack when Z80 is disabled Michael Pavone <pavone@retrodev.com> parents: 672 diff changeset	567 gen->z80->busack = 1;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	568 }
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	569 } else {
668 5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	570 if (gen->z80->busreq) {
271 969ee17471c5 Protect debug prints for busreq/reset regs with appropriate macros Mike Pavone <pavone@retrodev.com> parents: 268 diff changeset	571 dputs("releasing z80 bus");
280 9ee64039ddeb Fix bank register update Mike Pavone <pavone@retrodev.com> parents: 279 diff changeset	572 #ifdef DO_DEBUG_PRINT
279 6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	573 char fname[20];
6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	574 sprintf(fname, "zram-%d", zram_counter++);
6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	575 FILE * f = fopen(fname, "wb");
6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	576 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	577 fclose(f);
280 9ee64039ddeb Fix bank register update Mike Pavone <pavone@retrodev.com> parents: 279 diff changeset	578 #endif
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	579 }
668 5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	580 if (z80_enabled) {
5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	581 z80_clear_busreq(gen->z80, context->current_cycle);
677 687c1dd3bcb9 Fake busack when Z80 is disabled Michael Pavone <pavone@retrodev.com> parents: 672 diff changeset	582 } else {
687c1dd3bcb9 Fake busack when Z80 is disabled Michael Pavone <pavone@retrodev.com> parents: 672 diff changeset	583 gen->z80->busack = 0;
668 5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	584 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	585 }
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	586 } else if (location == 0x1200) {
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	587 sync_z80(gen->z80, context->current_cycle);
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	588 if (value & 1) {
668 5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	589 if (z80_enabled) {
5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	590 z80_clear_reset(gen->z80, context->current_cycle);
5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	591 } else {
5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	592 gen->z80->reset = 0;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	593 }
668 5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	594 } else {
5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	595 if (z80_enabled) {
5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	596 z80_assert_reset(gen->z80, context->current_cycle);
5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	597 } else {
5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	598 gen->z80->reset = 1;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	599 }
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	600 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	601 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	602 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	603 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	604 return context;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	605 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	606
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	607 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	608 {
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	609 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	610 return io_write(location, context, value >> 8);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	611 } 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	612 return io_write(location, context, value);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	613 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	614 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	615
130 0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	616 #define USA 0x80
0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	617 #define JAP 0x00
0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	618 #define EUR 0xC0
0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	619 #define NO_DISK 0x20
0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	620 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	621
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	622 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	623 {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	624 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	625 genesis_context *gen = context->system;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	626 if (location < 0x10000) {
844 74e161fe7d39 Small tweaks to timing of 68K/Z80 interactions based on latest tests Michael Pavone <pavone@retrodev.com> parents: 837 diff changeset	627 //Access to Z80 memory incurs a one 68K cycle wait state
74e161fe7d39 Small tweaks to timing of 68K/Z80 interactions based on latest tests Michael Pavone <pavone@retrodev.com> parents: 837 diff changeset	628 context->current_cycle += MCLKS_PER_68K;
668 5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	629 if (!z80_enabled \|\| z80_get_busack(gen->z80, context->current_cycle)) {
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	630 location &= 0x7FFF;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	631 if (location < 0x4000) {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	632 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	633 } else if (location < 0x6000) {
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	634 sync_sound(gen, context->current_cycle);
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	635 value = ym_read_status(gen->ym);
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	636 } else {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	637 value = 0xFF;
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 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	640 value = 0xFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	641 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	642 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	643 location &= 0x1FFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	644 if (location < 0x100) {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	645 switch(location/2)
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	646 {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	647 case 0x0:
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	648 //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	649 value = version_reg;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	650 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	651 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	652 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	653 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	654 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	655 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	656 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	657 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	658 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	659 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	660 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	661 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	662 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	663 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	664 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	665 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	666 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	667 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	668 break;
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	669 default:
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	670 value = 0xFF;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	671 }
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	672 } else {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	673 if (location == 0x1100) {
677 687c1dd3bcb9 Fake busack when Z80 is disabled Michael Pavone <pavone@retrodev.com> parents: 672 diff changeset	674 value = z80_enabled ? !z80_get_busack(gen->z80, context->current_cycle) : !gen->z80->busack;
753 cee1275f5d08 Lame placeholder support for floating bus bits of IO hardware. Needs to be replaced with prefetch based values Michael Pavone <pavone@retrodev.com> parents: 752 diff changeset	675 //TODO: actual pre-fetch emulation
cee1275f5d08 Lame placeholder support for floating bus bits of IO hardware. Needs to be replaced with prefetch based values Michael Pavone <pavone@retrodev.com> parents: 752 diff changeset	676 value \|= 0x4E;
668 5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	677 dprintf("Byte read of BUSREQ returned %d @ %d (reset: %d)\n", value, context->current_cycle, gen->z80->reset);
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	678 } else if (location == 0x1200) {
668 5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c Michael Pavone <pavone@retrodev.com> parents: 667 diff changeset	679 value = !gen->z80->reset;
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	680 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	681 value = 0xFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	682 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	683 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	684 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	685 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	686 return value;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	687 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	688
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	689 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	690 {
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	691 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	692 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	693 value = value \| (value << 8);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	694 } 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	695 value <<= 8;
753 cee1275f5d08 Lame placeholder support for floating bus bits of IO hardware. Needs to be replaced with prefetch based values Michael Pavone <pavone@retrodev.com> parents: 752 diff changeset	696 //TODO: actual pre-fetch emulation
cee1275f5d08 Lame placeholder support for floating bus bits of IO hardware. Needs to be replaced with prefetch based values Michael Pavone <pavone@retrodev.com> parents: 752 diff changeset	697 value \|= 0x73;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	698 }
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	699 return value;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	700 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	701
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	702 void * z80_write_ym(uint32_t location, void * vcontext, uint8_t value)
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	703 {
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	704 z80_context * context = vcontext;
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	705 genesis_context * gen = context->system;
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	706 sync_sound(gen, context->current_cycle);
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	707 if (location & 1) {
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	708 ym_data_write(gen->ym, value);
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	709 } else if (location & 2) {
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	710 ym_address_write_part2(gen->ym, value);
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	711 } else {
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	712 ym_address_write_part1(gen->ym, value);
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	713 }
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	714 return context;
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	715 }
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	716
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	717 uint8_t z80_read_ym(uint32_t location, void * vcontext)
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	718 {
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	719 z80_context * context = vcontext;
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	720 genesis_context * gen = context->system;
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	721 sync_sound(gen, context->current_cycle);
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	722 return ym_read_status(gen->ym);
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	723 }
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	724
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	725 uint8_t z80_read_bank(uint32_t location, void * vcontext)
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	726 {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	727 z80_context * context = vcontext;
672 18ef3b61e70b Restore emulation of Z80 being locked out of the 68K bus during DMA and the like Michael Pavone <pavone@retrodev.com> parents: 671 diff changeset	728 genesis_context *gen = context->system;
18ef3b61e70b Restore emulation of Z80 being locked out of the 68K bus during DMA and the like Michael Pavone <pavone@retrodev.com> parents: 671 diff changeset	729 if (gen->bus_busy) {
18ef3b61e70b Restore emulation of Z80 being locked out of the 68K bus during DMA and the like Michael Pavone <pavone@retrodev.com> parents: 671 diff changeset	730 context->current_cycle = context->sync_cycle;
18ef3b61e70b Restore emulation of Z80 being locked out of the 68K bus during DMA and the like Michael Pavone <pavone@retrodev.com> parents: 671 diff changeset	731 }
660 e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	732 //typical delay from bus arbitration
671 8ad39a2b0bce Fix bank area access delay for master clock change Michael Pavone <pavone@retrodev.com> parents: 670 diff changeset	733 context->current_cycle += 3 * MCLKS_PER_Z80;
672 18ef3b61e70b Restore emulation of Z80 being locked out of the 68K bus during DMA and the like Michael Pavone <pavone@retrodev.com> parents: 671 diff changeset	734 //TODO: add cycle for an access right after a previous one
736 535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	735 //TODO: Below cycle time is an estimate based on the time between 68K !BG goes low and Z80 !MREQ goes high
535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	736 // Needs a new logic analyzer capture to get the actual delay on the 68K side
535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	737 gen->m68k->current_cycle += 8 * MCLKS_PER_68K;
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	738
660 e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	739 location &= 0x7FFF;
e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	740 if (context->mem_pointers[1]) {
e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	741 return context->mem_pointers[1][location ^ 1];
e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	742 }
604 39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	743 uint32_t address = context->bank_reg << 15 \| location;
616 649db9397fa1 Add support for Z80 access to VDP via bank area Michael Pavone <pavone@retrodev.com> parents: 606 diff changeset	744 if (address >= 0xC00000 && address < 0xE00000) {
649db9397fa1 Add support for Z80 access to VDP via bank area Michael Pavone <pavone@retrodev.com> parents: 606 diff changeset	745 return z80_vdp_port_read(location & 0xFF, context);
649db9397fa1 Add support for Z80 access to VDP via bank area Michael Pavone <pavone@retrodev.com> parents: 606 diff changeset	746 } else {
660 e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	747 fprintf(stderr, "Unhandled read by Z80 from address %X through banked memory area (%X)\n", address, context->bank_reg << 15);
616 649db9397fa1 Add support for Z80 access to VDP via bank area Michael Pavone <pavone@retrodev.com> parents: 606 diff changeset	748 }
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	749 return 0;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	750 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	751
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	752 void z80_write_bank(uint32_t location, void vcontext, uint8_t value)
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	753 {
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	754 z80_context * context = vcontext;
672 18ef3b61e70b Restore emulation of Z80 being locked out of the 68K bus during DMA and the like Michael Pavone <pavone@retrodev.com> parents: 671 diff changeset	755 genesis_context *gen = context->system;
18ef3b61e70b Restore emulation of Z80 being locked out of the 68K bus during DMA and the like Michael Pavone <pavone@retrodev.com> parents: 671 diff changeset	756 if (gen->bus_busy) {
18ef3b61e70b Restore emulation of Z80 being locked out of the 68K bus during DMA and the like Michael Pavone <pavone@retrodev.com> parents: 671 diff changeset	757 context->current_cycle = context->sync_cycle;
18ef3b61e70b Restore emulation of Z80 being locked out of the 68K bus during DMA and the like Michael Pavone <pavone@retrodev.com> parents: 671 diff changeset	758 }
660 e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	759 //typical delay from bus arbitration
671 8ad39a2b0bce Fix bank area access delay for master clock change Michael Pavone <pavone@retrodev.com> parents: 670 diff changeset	760 context->current_cycle += 3 * MCLKS_PER_Z80;
672 18ef3b61e70b Restore emulation of Z80 being locked out of the 68K bus during DMA and the like Michael Pavone <pavone@retrodev.com> parents: 671 diff changeset	761 //TODO: add cycle for an access right after a previous one
736 535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	762 //TODO: Below cycle time is an estimate based on the time between 68K !BG goes low and Z80 !MREQ goes high
535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	763 // Needs a new logic analyzer capture to get the actual delay on the 68K side
535e97bad27f Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate Michael Pavone <pavone@retrodev.com> parents: 721 diff changeset	764 gen->m68k->current_cycle += 8 * MCLKS_PER_68K;
672 18ef3b61e70b Restore emulation of Z80 being locked out of the 68K bus during DMA and the like Michael Pavone <pavone@retrodev.com> parents: 671 diff changeset	765
660 e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	766 location &= 0x7FFF;
604 39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	767 uint32_t address = context->bank_reg << 15 \| location;
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	768 if (address >= 0xE00000) {
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	769 address &= 0xFFFF;
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	770 ((uint8_t *)ram)[address ^ 1] = value;
616 649db9397fa1 Add support for Z80 access to VDP via bank area Michael Pavone <pavone@retrodev.com> parents: 606 diff changeset	771 } else if (address >= 0xC00000) {
649db9397fa1 Add support for Z80 access to VDP via bank area Michael Pavone <pavone@retrodev.com> parents: 606 diff changeset	772 z80_vdp_port_write(location & 0xFF, context, value);
604 39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	773 } else {
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	774 fprintf(stderr, "Unhandled write by Z80 to address %X through banked memory area\n", address);
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	775 }
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	776 return context;
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	777 }
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	778
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	779 void z80_write_bank_reg(uint32_t location, void vcontext, uint8_t value)
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	780 {
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	781 z80_context * context = vcontext;
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	782
604 39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	783 context->bank_reg = (context->bank_reg >> 1 \| value << 8) & 0x1FF;
777 79b10b421d3c Support large flat-mapped ROMs like Bad Apple or that Mortal Kombat hack Michael Pavone <pavone@retrodev.com> parents: 776 diff changeset	784 if (context->bank_reg < 0x100) {
660 e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	785 genesis_context *gen = context->system;
e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	786 context->mem_pointers[1] = get_native_pointer(context->bank_reg << 15, (void **)gen->m68k->mem_pointers, &gen->m68k->options->gen);
604 39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	787 } else {
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	788 context->mem_pointers[1] = NULL;
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	789 }
667 30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working Michael Pavone <pavone@retrodev.com> parents: 661 diff changeset	790
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	791 return context;
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	792 }
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	793
483 3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	794 void set_speed_percent(genesis_context * context, uint32_t percent)
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	795 {
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	796 uint32_t old_clock = context->master_clock;
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	797 context->master_clock = ((uint64_t)context->normal_clock * (uint64_t)percent) / 100;
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	798 while (context->ym->current_cycle != context->psg->cycles) {
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	799 sync_sound(context, context->psg->cycles + MCLKS_PER_PSG);
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	800 }
483 3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	801 ym_adjust_master_clock(context->ym, context->master_clock);
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	802 psg_adjust_master_clock(context->psg, context->master_clock);
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	803 }
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button Mike Pavone <pavone@retrodev.com> parents: 482 diff changeset	804
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	805 char * save_filename;
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	806 genesis_context *genesis;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	807 genesis_context *menu_context;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	808 genesis_context *game_context;
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	809 void persist_save()
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	810 {
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	811 FILE * f = fopen(save_filename, "wb");
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	812 if (!f) {
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	813 fprintf(stderr, "Failed to open %s file %s for writing\n", genesis->save_type == SAVE_I2C ? "EEPROM" : "SRAM", save_filename);
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	814 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	815 }
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	816 fwrite(genesis->save_storage, 1, genesis->save_size, f);
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	817 fclose(f);
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	818 printf("Saved %s to %s\n", genesis->save_type == SAVE_I2C ? "EEPROM" : "SRAM", save_filename);
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	819 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	820
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	821 #ifndef NO_Z80
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	822 const memmap_chunk z80_map[] = {
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	823 { 0x0000, 0x4000, 0x1FFF, 0, MMAP_READ \| MMAP_WRITE \| MMAP_CODE, z80_ram, NULL, NULL, NULL, NULL },
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	824 { 0x8000, 0x10000, 0x7FFF, 0, 0, NULL, NULL, NULL, z80_read_bank, z80_write_bank},
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	825 { 0x4000, 0x6000, 0x0003, 0, 0, NULL, NULL, NULL, z80_read_ym, z80_write_ym},
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	826 { 0x6000, 0x6100, 0xFFFF, 0, 0, NULL, NULL, NULL, NULL, z80_write_bank_reg},
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	827 { 0x7F00, 0x8000, 0x00FF, 0, 0, NULL, NULL, NULL, z80_vdp_port_read, z80_vdp_port_write}
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	828 };
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	829 #endif
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	830
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	831 genesis_context alloc_init_genesis(rom_info rom, int fps, uint32_t ym_opts)
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	832 {
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	833 genesis_context *gen = calloc(1, sizeof(genesis_context));
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	834 gen->master_clock = gen->normal_clock = fps == 60 ? MCLKS_NTSC : MCLKS_PAL;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	835
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	836 gen->vdp = malloc(sizeof(vdp_context));
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	837 init_vdp_context(gen->vdp, version_reg & 0x40);
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	838 gen->frame_end = vdp_cycles_to_frame_end(gen->vdp);
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	839 char * config_cycles = tern_find_path(config, "clocks\0max_cycles\0").ptrval;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	840 gen->max_cycles = config_cycles ? atoi(config_cycles) : DEFAULT_SYNC_INTERVAL;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	841
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	842 gen->ym = malloc(sizeof(ym2612_context));
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	843 ym_init(gen->ym, render_sample_rate(), gen->master_clock, MCLKS_PER_YM, render_audio_buffer(), ym_opts);
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	844
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	845 gen->psg = malloc(sizeof(psg_context));
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	846 psg_init(gen->psg, render_sample_rate(), gen->master_clock, MCLKS_PER_PSG, render_audio_buffer());
832 0433fdd9ba66 Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals Michael Pavone <pavone@retrodev.com> parents: 819 diff changeset	847
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	848 gen->z80 = calloc(1, sizeof(z80_context));
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	849 #ifndef NO_Z80
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	850 z80_options *z_opts = malloc(sizeof(z80_options));
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	851 init_z80_opts(z_opts, z80_map, 5, NULL, 0, MCLKS_PER_Z80);
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	852 init_z80_context(gen->z80, z_opts);
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	853 z80_assert_reset(gen->z80, 0);
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	854 #endif
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	855
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	856 gen->z80->system = gen;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	857 gen->z80->mem_pointers[0] = z80_ram;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	858 gen->z80->mem_pointers[1] = gen->z80->mem_pointers[2] = (uint8_t *)cart;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	859
883 9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	860 gen->cart = cart;
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	861 gen->work_ram = ram;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	862 gen->zram = z80_ram;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	863 setup_io_devices(config, gen->ports);
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	864
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	865 gen->save_type = rom->save_type;
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	866 gen->save_type = rom->save_type;
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	867 if (gen->save_type != SAVE_NONE) {
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	868 gen->save_ram_mask = rom->save_mask;
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	869 gen->save_size = rom->save_size;
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	870 gen->save_storage = rom->save_buffer;
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	871 gen->eeprom_map = rom->eeprom_map;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	872 gen->num_eeprom = rom->num_eeprom;
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	873 FILE * f = fopen(save_filename, "rb");
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	874 if (f) {
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	875 uint32_t read = fread(gen->save_storage, 1, rom->save_size, f);
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	876 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	877 if (read > 0) {
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	878 printf("Loaded %s from %s\n", rom->save_type == SAVE_I2C ? "EEPROM" : "SRAM", save_filename);
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	879 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	880 }
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	881 atexit(persist_save);
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	882 if (gen->save_type == SAVE_I2C) {
770 a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	883 eeprom_init(&gen->eeprom, gen->save_storage, gen->save_size);
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	884 }
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	885 } else {
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	886 gen->save_storage = NULL;
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	887 }
832 0433fdd9ba66 Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals Michael Pavone <pavone@retrodev.com> parents: 819 diff changeset	888
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	889 m68k_options *opts = malloc(sizeof(m68k_options));
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	890 init_m68k_opts(opts, rom->map, rom->map_chunks, MCLKS_PER_68K);
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	891 //TODO: make this configurable
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	892 opts->gen.flags \|= M68K_OPT_BROKEN_READ_MODIFY;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	893 gen->m68k = init_68k_context(opts);
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	894 gen->m68k->system = gen;
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	895
776 cbf97d335444 Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works. Michael Pavone <pavone@retrodev.com> parents: 774 diff changeset	896 for (int i = 0; i < rom->map_chunks; i++)
cbf97d335444 Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works. Michael Pavone <pavone@retrodev.com> parents: 774 diff changeset	897 {
cbf97d335444 Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works. Michael Pavone <pavone@retrodev.com> parents: 774 diff changeset	898 if (rom->map[i].flags & MMAP_PTR_IDX) {
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	899 gen->m68k->mem_pointers[rom->map[i].ptr_index] = rom->map[i].buffer;
776 cbf97d335444 Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works. Michael Pavone <pavone@retrodev.com> parents: 774 diff changeset	900 }
cbf97d335444 Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works. Michael Pavone <pavone@retrodev.com> parents: 774 diff changeset	901 }
832 0433fdd9ba66 Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals Michael Pavone <pavone@retrodev.com> parents: 819 diff changeset	902
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	903 return gen;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	904 }
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	905
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	906 void free_genesis(genesis_context *gen)
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	907 {
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	908 vdp_free(gen->vdp);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	909 m68k_options_free(gen->m68k->options);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	910 free(gen->m68k);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	911 z80_options_free(gen->z80->options);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	912 free(gen->z80);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	913 ym_free(gen->ym);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	914 psg_free(gen->psg);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	915 free(gen->save_storage);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	916 }
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	917
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	918 void start_genesis(genesis_context gen, char statefile, uint8_t *debugger)
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	919 {
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	920
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	921 if (statefile) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	922 uint32_t pc = load_gst(gen, statefile);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	923 if (!pc) {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	924 fatal_error("Failed to load save state %s\n", statefile);
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	925 }
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	926 printf("Loaded %s\n", statefile);
515 1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work. Mike Pavone <pavone@retrodev.com> parents: 510 diff changeset	927 if (debugger) {
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	928 insert_breakpoint(gen->m68k, pc, debugger);
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	929 }
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	930 adjust_int_cycle(gen->m68k, gen->vdp);
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	931 start_68k_context(gen->m68k, pc);
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	932 } else {
515 1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work. Mike Pavone <pavone@retrodev.com> parents: 510 diff changeset	933 if (debugger) {
752 296ddfcf0d43 Minor cleanup in init_run_cpu Michael Pavone <pavone@retrodev.com> parents: 736 diff changeset	934 uint32_t address = cart[2] << 16 \| cart[3];
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	935 insert_breakpoint(gen->m68k, address, debugger);
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	936 }
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	937 m68k_reset(gen->m68k);
211 464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	938 }
464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	939 }
464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	940
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	941 char *title;
340 58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	942
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	943 void update_title(char *rom_name)
340 58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	944 {
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	945 if (title) {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	946 free(title);
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	947 title = NULL;
340 58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	948 }
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	949 title = alloc_concat(rom_name, " - BlastEm");
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	950 render_update_caption(title);
340 58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	951 }
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	952
765 dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	953 void set_region(rom_info *info, uint8_t region)
341 6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	954 {
765 dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	955 if (!region) {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	956 char * def_region = tern_find_ptr(config, "default_region");
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	957 if (def_region && (!info->regions \|\| (info->regions & translate_region_char(toupper(*def_region))))) {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	958 region = translate_region_char(toupper(*def_region));
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	959 } else {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	960 region = info->regions;
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	961 }
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	962 }
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	963 if (region & REGION_E) {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	964 version_reg = NO_DISK \| EUR;
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	965 } else if (region & REGION_J) {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	966 version_reg = NO_DISK \| JAP;
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	967 } else {
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	968 version_reg = NO_DISK \| USA;
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	969 }
341 6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	970 }
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	971
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	972 int main(int argc, char ** argv)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	973 {
496 6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere Mike Pavone <pavone@retrodev.com> parents: 488 diff changeset	974 set_exe_str(argv[0]);
6fc71114d145 Extract function to determine executable directory from load_config so it can be used elsewhere Mike Pavone <pavone@retrodev.com> parents: 488 diff changeset	975 config = load_config();
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	976 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	977 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	978 int debug = 0;
407 c3abc4ada43d Add support for logging YM2612 channels to WAVE files Mike Pavone <pavone@retrodev.com> parents: 405 diff changeset	979 int ym_log = 0;
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	980 int loaded = 0;
469 5f3344d0d42f Fix argument handling so that the rom filename does not need to be specified first Mike Pavone <pavone@retrodev.com> parents: 467 diff changeset	981 uint8_t force_version = 0;
5f3344d0d42f Fix argument handling so that the rom filename does not need to be specified first Mike Pavone <pavone@retrodev.com> parents: 467 diff changeset	982 char * romfname = NULL;
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	983 FILE *address_log = NULL;
425 8b3ae850d1c4 Forgot to null initialize the statfile pointer Mike Pavone <pavone@retrodev.com> parents: 424 diff changeset	984 char * statefile = NULL;
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	985 int rom_size;
515 1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work. Mike Pavone <pavone@retrodev.com> parents: 510 diff changeset	986 uint8_t * debuggerfun = NULL;
860 213c3b5160d0 Default to fullscreen on Android since windowed mode does not make sense there Michael Pavone <pavone@retrodev.com> parents: 846 diff changeset	987 uint8_t fullscreen = FULLSCREEN_DEFAULT, use_gl = 1;
885 e3f5ec336432 Allow menu ROM to be debugged Michael Pavone <pavone@retrodev.com> parents: 884 diff changeset	988 uint8_t debug_target = 0;
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	989 for (int i = 1; i < argc; i++) {
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	990 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	991 switch(argv[i][1]) {
505 b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment. Michael Pavone <pavone@retrodev.com> parents: 501 diff changeset	992 case 'b':
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment. Michael Pavone <pavone@retrodev.com> parents: 501 diff changeset	993 i++;
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment. Michael Pavone <pavone@retrodev.com> parents: 501 diff changeset	994 if (i >= argc) {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	995 fatal_error("-b must be followed by a frame count\n");
505 b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment. Michael Pavone <pavone@retrodev.com> parents: 501 diff changeset	996 }
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment. Michael Pavone <pavone@retrodev.com> parents: 501 diff changeset	997 headless = 1;
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment. Michael Pavone <pavone@retrodev.com> parents: 501 diff changeset	998 exit_after = atoi(argv[i]);
b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment. Michael Pavone <pavone@retrodev.com> parents: 501 diff changeset	999 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	1000 case 'd':
515 1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work. Mike Pavone <pavone@retrodev.com> parents: 510 diff changeset	1001 debuggerfun = (uint8_t *)debugger;
885 e3f5ec336432 Allow menu ROM to be debugged Michael Pavone <pavone@retrodev.com> parents: 884 diff changeset	1002 //allow debugging the menu
e3f5ec336432 Allow menu ROM to be debugged Michael Pavone <pavone@retrodev.com> parents: 884 diff changeset	1003 if (argv[i][2] == 'm') {
e3f5ec336432 Allow menu ROM to be debugged Michael Pavone <pavone@retrodev.com> parents: 884 diff changeset	1004 debug_target = 1;
e3f5ec336432 Allow menu ROM to be debugged Michael Pavone <pavone@retrodev.com> parents: 884 diff changeset	1005 }
515 1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work. Mike Pavone <pavone@retrodev.com> parents: 510 diff changeset	1006 break;
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work. Mike Pavone <pavone@retrodev.com> parents: 510 diff changeset	1007 case 'D':
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work. Mike Pavone <pavone@retrodev.com> parents: 510 diff changeset	1008 gdb_remote_init();
1495179d6737 Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work. Mike Pavone <pavone@retrodev.com> parents: 510 diff changeset	1009 debuggerfun = (uint8_t *)gdb_debug_enter;
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1010 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	1011 case 'f':
860 213c3b5160d0 Default to fullscreen on Android since windowed mode does not make sense there Michael Pavone <pavone@retrodev.com> parents: 846 diff changeset	1012 fullscreen = !fullscreen;
338 5c34a9c39394 Re-enable frame limit, but add a command line flag to disable it Mike Pavone <pavone@retrodev.com> parents: 336 diff changeset	1013 break;
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	1014 case 'g':
501 e1355aa80f4d Use OpenGL by default. Add OpenGL switch to help text Mike Pavone <pavone@retrodev.com> parents: 496 diff changeset	1015 use_gl = 0;
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	1016 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	1017 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	1018 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	1019 break;
464 226ed16b1fb6 Added version flag Mike Pavone <pavone@retrodev.com> parents: 463 diff changeset	1020 case 'v':
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	1021 info_message("blastem %s\n", BLASTEM_VERSION);
464 226ed16b1fb6 Added version flag Mike Pavone <pavone@retrodev.com> parents: 463 diff changeset	1022 return 0;
226ed16b1fb6 Added version flag Mike Pavone <pavone@retrodev.com> parents: 463 diff changeset	1023 break;
265 c6d12878ea93 Add -n flag for disabling the Z80 core Mike Pavone <pavone@retrodev.com> parents: 264 diff changeset	1024 case 'n':
c6d12878ea93 Add -n flag for disabling the Z80 core Mike Pavone <pavone@retrodev.com> parents: 264 diff changeset	1025 z80_enabled = 0;
c6d12878ea93 Add -n flag for disabling the Z80 core Mike Pavone <pavone@retrodev.com> parents: 264 diff changeset	1026 break;
341 6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1027 case 'r':
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1028 i++;
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1029 if (i >= argc) {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	1030 fatal_error("-r must be followed by region (J, U or E)\n");
341 6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1031 }
765 dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	1032 force_version = translate_region_char(toupper(argv[i][0]));
dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	1033 if (!force_version) {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	1034 fatal_error("'%c' is not a valid region character for the -r option\n", argv[i][0]);
341 6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1035 }
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1036 break;
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1037 case 's':
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1038 i++;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1039 if (i >= argc) {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	1040 fatal_error("-s must be followed by a savestate filename\n");
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1041 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1042 statefile = argv[i];
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1043 break;
832 0433fdd9ba66 Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals Michael Pavone <pavone@retrodev.com> parents: 819 diff changeset	1044 case 't':
0433fdd9ba66 Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals Michael Pavone <pavone@retrodev.com> parents: 819 diff changeset	1045 force_no_terminal();
0433fdd9ba66 Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals Michael Pavone <pavone@retrodev.com> parents: 819 diff changeset	1046 break;
407 c3abc4ada43d Add support for logging YM2612 channels to WAVE files Mike Pavone <pavone@retrodev.com> parents: 405 diff changeset	1047 case 'y':
c3abc4ada43d Add support for logging YM2612 channels to WAVE files Mike Pavone <pavone@retrodev.com> parents: 405 diff changeset	1048 ym_log = 1;
c3abc4ada43d Add support for logging YM2612 channels to WAVE files Mike Pavone <pavone@retrodev.com> parents: 405 diff changeset	1049 break;
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1050 case 'h':
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	1051 info_message(
469 5f3344d0d42f Fix argument handling so that the rom filename does not need to be specified first Mike Pavone <pavone@retrodev.com> parents: 467 diff changeset	1052 "Usage: blastem [OPTIONS] ROMFILE [WIDTH] [HEIGHT]\n"
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1053 "Options:\n"
a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1054 " -h Print this help text\n"
a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1055 " -r (J\|U\|E) Force region to Japan, US or Europe respectively\n"
a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1056 " -f Start in fullscreen mode\n"
501 e1355aa80f4d Use OpenGL by default. Add OpenGL switch to help text Mike Pavone <pavone@retrodev.com> parents: 496 diff changeset	1057 " -g Disable OpenGL rendering\n"
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1058 " -s FILE Load a GST format savestate from FILE\n"
a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1059 " -d Enter debugger on startup\n"
a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1060 " -n Disable Z80\n"
501 e1355aa80f4d Use OpenGL by default. Add OpenGL switch to help text Mike Pavone <pavone@retrodev.com> parents: 496 diff changeset	1061 " -v Display version number and exit\n"
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1062 " -l Log 68K code addresses (useful for assemblers)\n"
a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1063 " -y Log individual YM-2612 channels to WAVE files\n"
a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1064 );
a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1065 return 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	1066 default:
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	1067 fatal_error("Unrecognized switch %s\n", argv[i]);
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1068 }
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1069 } else if (!loaded) {
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	1070 if (!(rom_size = load_rom(argv[i]))) {
792 724bbec47f86 Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows). Michael Pavone <pavone@retrodev.com> parents: 787 diff changeset	1071 fatal_error("Failed to open %s for reading\n", argv[i]);
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1072 }
469 5f3344d0d42f Fix argument handling so that the rom filename does not need to be specified first Mike Pavone <pavone@retrodev.com> parents: 467 diff changeset	1073 romfname = argv[i];
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1074 loaded = 1;
184 ebcbdd1c4cc8 Fix a bunch of bugs in the CPU core, add a 68K debugger Mike Pavone <pavone@retrodev.com> parents: 166 diff changeset	1075 } 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	1076 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	1077 } 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	1078 height = atoi(argv[i]);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1079 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1080 }
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1081 uint8_t menu = !loaded;
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1082 if (!loaded) {
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1083 //load menu
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1084 romfname = tern_find_path(config, "ui\rom\0").ptrval;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1085 if (!romfname) {
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1086 romfname = "menu.bin";
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1087 }
875 54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1088 if (romfname[0] == '/') {
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1089 if (!(rom_size = load_rom(romfname))) {
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1090 fatal_error("Failed to open UI ROM %s for reading", romfname);
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1091 }
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1092 } else {
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1093 long fsize;
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1094 cart = (uint16_t *)read_bundled_file(romfname, &fsize);
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1095 if (!cart) {
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1096 fatal_error("Failed to open UI ROM %s for reading", romfname);
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1097 }
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1098 rom_size = nearest_pow2(fsize);
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1099 if (rom_size > fsize) {
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1100 cart = realloc(cart, rom_size);
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1101 }
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1102 }
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1103 //TODO: load relative to executable or from assets depending on platform
872 7022ba865cfd Initial work for allowing loading a ROM from menu Michael Pavone <pavone@retrodev.com> parents: 861 diff changeset	1104
861 4e394d9a7548 Added temporary hack for loading a fixed ROM path so that Android build is "useable" before UI is in place Michael Pavone <pavone@retrodev.com> parents: 860 diff changeset	1105 loaded = 1;
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1106 }
883 9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1107 ram = malloc(RAM_WORDS * sizeof(uint16_t));
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1108 memmap_chunk base_map[] = {
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1109 {0xE00000, 0x1000000, 0xFFFF, 0, MMAP_READ \| MMAP_WRITE \| MMAP_CODE, ram,
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1110 NULL, NULL, NULL, NULL},
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1111 {0xC00000, 0xE00000, 0x1FFFFF, 0, 0, NULL,
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1112 (read_16_fun)vdp_port_read, (write_16_fun)vdp_port_write,
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1113 (read_8_fun)vdp_port_read_b, (write_8_fun)vdp_port_write_b},
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1114 {0xA00000, 0xA12000, 0x1FFFF, 0, 0, NULL,
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1115 (read_16_fun)io_read_w, (write_16_fun)io_write_w,
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1116 (read_8_fun)io_read, (write_8_fun)io_write}
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1117 };
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	1118 tern_node *rom_db = load_rom_db();
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	1119 rom_info info = configure_rom(rom_db, cart, rom_size, base_map, sizeof(base_map)/sizeof(base_map[0]));
776 cbf97d335444 Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works. Michael Pavone <pavone@retrodev.com> parents: 774 diff changeset	1120 byteswap_rom(rom_size);
765 dc54387ee1cd Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM. Michael Pavone <pavone@retrodev.com> parents: 764 diff changeset	1121 set_region(&info, force_version);
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	1122 update_title(info.name);
433 ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1123 int def_width = 0;
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	1124 char *config_width = tern_find_path(config, "video\0width\0").ptrval;
433 ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1125 if (config_width) {
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1126 def_width = atoi(config_width);
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1127 }
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1128 if (!def_width) {
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1129 def_width = 640;
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1130 }
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1131 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	1132 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	1133 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	1134 if (version_reg & 0x40) {
354 15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	1135 fps = 50;
15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	1136 }
15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	1137 if (!headless) {
719 019d27995e32 Upgrade to SDL 2.0 and drop support for the non-OpenGL render path Michael Pavone <pavone@retrodev.com> parents: 718 diff changeset	1138 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	1139 }
469 5f3344d0d42f Fix argument handling so that the rom filename does not need to be specified first Mike Pavone <pavone@retrodev.com> parents: 467 diff changeset	1140 int fname_size = strlen(romfname);
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	1141 char * ext = info.save_type == SAVE_I2C ? "eeprom" : "sram";
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	1142 save_filename = malloc(fname_size+strlen(ext) + 2);
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	1143 memcpy(save_filename, romfname, fname_size);
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	1144 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	1145 for (i = fname_size-1; fname_size >= 0; --i) {
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	1146 if (save_filename[i] == '.') {
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	1147 strcpy(save_filename + i + 1, ext);
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	1148 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	1149 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1150 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	1151 if (i < 0) {
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	1152 save_filename[fname_size] = '.';
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	1153 strcpy(save_filename + fname_size + 1, ext);
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	1154 }
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1155
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1156 genesis = alloc_init_genesis(&info, fps, (ym_log && !menu) ? YM_OPT_WAVE_LOG : 0);
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1157 if (menu) {
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1158 menu_context = genesis;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1159 } else {
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1160 genesis->m68k->options->address_log = address_log;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1161 game_context = genesis;
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1162 }
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	1163
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1164 set_keybindings(genesis->ports);
885 e3f5ec336432 Allow menu ROM to be debugged Michael Pavone <pavone@retrodev.com> parents: 884 diff changeset	1165 start_genesis(genesis, menu ? NULL : statefile, menu == debug_target ? debuggerfun : NULL);
883 9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1166 for(;;)
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1167 {
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1168 if (menu && menu_context->next_rom) {
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1169 if (game_context) {
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1170 if (game_context->save_type != SAVE_NONE) {
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1171 persist_save();
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1172 }
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1173 free(game_context->cart);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1174 free(save_filename);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1175 base_map[0].buffer = ram = game_context->work_ram;
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1176 } else {
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1177 base_map[0].buffer = ram = malloc(RAM_WORDS * sizeof(uint16_t));
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1178 }
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1179 memset(ram, 0, RAM_WORDS * sizeof(uint16_t));
883 9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1180 if (!(rom_size = load_rom(menu_context->next_rom))) {
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1181 fatal_error("Failed to open %s for reading\n", menu_context->next_rom);
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1182 }
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1183 info = configure_rom(rom_db, cart, rom_size, base_map, sizeof(base_map)/sizeof(base_map[0]));
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1184 byteswap_rom(rom_size);
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1185 set_region(&info, force_version);
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1186 update_title(info.name);
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1187 fname_size = strlen(romfname);
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1188 ext = info.save_type == SAVE_I2C ? "eeprom" : "sram";
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1189 save_filename = malloc(fname_size+strlen(ext) + 2);
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1190 memcpy(save_filename, romfname, fname_size);
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1191 for (i = fname_size-1; fname_size >= 0; --i) {
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1192 if (save_filename[i] == '.') {
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1193 strcpy(save_filename + i + 1, ext);
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1194 break;
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1195 }
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1196 }
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1197 if (i < 0) {
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1198 save_filename[fname_size] = '.';
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1199 strcpy(save_filename + fname_size + 1, ext);
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1200 }
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1201 if (!game_context) {
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1202 //start a new arena and save old one in suspended genesis context
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1203 genesis->arena = start_new_arena();
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1204 } else {
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1205 genesis->arena = set_current_arena(game_context->arena);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1206 mark_all_free();
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1207 free_genesis(game_context);
883 9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1208 }
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1209 //allocate new genesis context
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1210 game_context = alloc_init_genesis(&info, fps, ym_log ? YM_OPT_WAVE_LOG : 0);
883 9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1211 free(menu_context->next_rom);
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1212 menu_context->next_rom = NULL;
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1213 menu = 0;
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1214 genesis = game_context;
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1215 genesis->m68k->options->address_log = address_log;
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1216 map_all_bindings(genesis->ports);
885 e3f5ec336432 Allow menu ROM to be debugged Michael Pavone <pavone@retrodev.com> parents: 884 diff changeset	1217 start_genesis(genesis, statefile, menu == debug_target ? debuggerfun : NULL);
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1218 }
883 9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1219 else if (menu && game_context) {
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1220 genesis->arena = set_current_arena(game_context->arena);
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1221 genesis = game_context;
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1222 cart = genesis->cart;
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1223 ram = genesis->work_ram;
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1224 menu = 0;
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1225 map_all_bindings(genesis->ports);
883 9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1226 resume_68k(genesis->m68k);
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1227 } else if (!menu && menu_context) {
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1228 genesis->arena = set_current_arena(menu_context->arena);
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1229 genesis = menu_context;
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1230 cart = genesis->cart;
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1231 ram = genesis->work_ram;
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1232 menu = 1;
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1233 map_all_bindings(genesis->ports);
883 9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1234 resume_68k(genesis->m68k);
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1235 } else {
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game Michael Pavone <pavone@retrodev.com> parents: 875 diff changeset	1236 break;
874 b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1237 }
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1238 }
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file. Michael Pavone <pavone@retrodev.com> parents: 872 diff changeset	1239
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1240 return 0;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1241 }

Mercurial > repos > blastem

annotate blastem.c @ 906:8cf57c6558ed