repos/blastem: blastem.c annotate

annotate blastem.c @ 1096:1ab30d427db8

Better disassembly of GPU/DSP load store instructions

author	Michael Pavone <pavone@retrodev.com>
date	Mon, 31 Oct 2016 18:41:42 -0700
parents	2ec5e6eaf81d
children	faa3a4617f62

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 /*
1018 dba8c630bdbf Update changelog and version number for 0.4.0 release Michael Pavone <pavone@retrodev.com> parents: 1017 diff changeset	2 Copyright 2013-2016 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
1063 8c90982429e3 Updat version number in preparation for upcoming release Michael Pavone <pavone@retrodev.com> parents: 1018 diff changeset	25 #define BLASTEM_VERSION "0.4.1"
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
948 f87522554d7b Allow changing the 68K clock divider in the config file Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	30 uint32_t MCLKS_PER_68K;
f87522554d7b Allow changing the 68K clock divider in the config file Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	31 #define MCLKS_PER_YM 7
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
1002 8d032a368dd5 Made low pass filter frequency configurable Michael Pavone <pavone@retrodev.com> parents: 997 diff changeset	35 #define DEFAULT_LOWPASS_CUTOFF 3390
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	36
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	37 //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	38 #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	39 #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	40
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	41 #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	42
860 213c3b5160d0 Default to fullscreen on Android since windowed mode does not make sense there Michael Pavone <pavone@retrodev.com> parents: 846 diff changeset	43 #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	44 #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	45 #else
213c3b5160d0 Default to fullscreen on Android since windowed mode does not make sense there Michael Pavone <pavone@retrodev.com> parents: 846 diff changeset	46 #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	47 #endif
213c3b5160d0 Default to fullscreen on Android since windowed mode does not make sense there Michael Pavone <pavone@retrodev.com> parents: 846 diff changeset	48
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	49 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	50 uint16_t *ram;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	51 uint8_t z80_ram[Z80_RAM_BYTES];
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	52
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	53 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	54 int exit_after = 0;
265 c6d12878ea93 Add -n flag for disabling the Z80 core Mike Pavone <pavone@retrodev.com> parents: 264 diff changeset	55 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	56 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	57
430 7f84090ab1cd Add config file parser and default config file Mike Pavone <pavone@retrodev.com> parents: 425 diff changeset	58 tern_node * config;
7f84090ab1cd Add config file parser and default config file Mike Pavone <pavone@retrodev.com> parents: 425 diff changeset	59
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	60 #ifndef MIN
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	61 #define MIN(a,b) ((a) < (b) ? (a) : (b))
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	62 #endif
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	63
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	64 #define SMD_HEADER_SIZE 512
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	65 #define SMD_MAGIC1 0x03
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	66 #define SMD_MAGIC2 0xAA
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	67 #define SMD_MAGIC3 0xBB
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	68 #define SMD_BLOCK_SIZE 0x4000
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	69
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	70 int load_smd_rom(long filesize, FILE * f)
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	71 {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	72 uint8_t block[SMD_BLOCK_SIZE];
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	73 filesize -= SMD_HEADER_SIZE;
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	74 fseek(f, SMD_HEADER_SIZE, SEEK_SET);
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	75
975 c6b19939da7b Fixed loading of SMD format ROMs Michael Pavone <pavone@retrodev.com> parents: 971 diff changeset	76 uint16_t * dst = cart = malloc(nearest_pow2(filesize));
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	77 int rom_size = filesize;
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	78 while (filesize > 0) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	79 fread(block, 1, SMD_BLOCK_SIZE, f);
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	80 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	81 (dst++) = low << 8 \| *high;
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	82 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	83 filesize -= SMD_BLOCK_SIZE;
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	84 }
975 c6b19939da7b Fixed loading of SMD format ROMs Michael Pavone <pavone@retrodev.com> parents: 971 diff changeset	85 return rom_size;
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	86 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	87
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	88 void byteswap_rom(int filesize)
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	89 {
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	90 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	91 {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	92 cur = (cur >> 8) \| (*cur << 8);
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 }
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	95
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	96 int load_rom(char * filename)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	97 {
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	98 uint8_t header[10];
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	99 FILE * f = fopen(filename, "rb");
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	100 if (!f) {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	101 return 0;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	102 }
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	103 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	104 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	105 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	106 fseek(f, 0, SEEK_END);
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	107 long filesize = ftell(f);
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	108 fseek(f, 0, SEEK_SET);
166 97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	109 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	110 int i;
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	111 for (i = 3; i < 8; i++) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	112 if (header[i] != 0) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	113 break;
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 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	116 if (i == 8) {
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	117 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	118 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	119 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	120 return load_smd_rom(filesize, f);
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	121 }
97aa449706c2 Added SMD ROM support Mike Pavone <pavone@retrodev.com> parents: 158 diff changeset	122 }
777 79b10b421d3c Support large flat-mapped ROMs like Bad Apple or that Mortal Kombat hack Michael Pavone <pavone@retrodev.com> parents: 776 diff changeset	123 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	124 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	125 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	126 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	127 fclose(f);
766 1b2f8280ba81 WIP changes to support reading cart memory map from ROM DB Michael Pavone <pavone@retrodev.com> parents: 765 diff changeset	128 return filesize;
88 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
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	131 uint16_t read_dma_value(uint32_t address)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	132 {
1016 5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	133 //addresses here are word addresses (i.e. bit 0 corresponds to A1), so no need to do multiply by 2
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	134 uint16_t ptr = get_native_pointer(address2, (void **)genesis->m68k->mem_pointers, &genesis->m68k->options->gen);
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	135 if (ptr) {
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	136 return *ptr;
88 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
981 902c53d9c16f Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing Michael Pavone <pavone@retrodev.com> parents: 978 diff changeset	142 uint16_t get_open_bus_value()
902c53d9c16f Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing Michael Pavone <pavone@retrodev.com> parents: 978 diff changeset	143 {
902c53d9c16f Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing Michael Pavone <pavone@retrodev.com> parents: 978 diff changeset	144 return read_dma_value(genesis->m68k->last_prefetch_address/2);
902c53d9c16f Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing Michael Pavone <pavone@retrodev.com> parents: 978 diff changeset	145 }
902c53d9c16f Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing Michael Pavone <pavone@retrodev.com> parents: 978 diff changeset	146
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	147 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	148 {
717 22dbdf50d33c Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation. Michael Pavone <pavone@retrodev.com> parents: 700 diff changeset	149 //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	150 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	151 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	152 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	153 }
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	154 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	155 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	156 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	157 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	158 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	159 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	160 }
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 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	162 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	163 if (next_hint != CYCLE_NEVER) {
995 2bc27415565b Fix some stuff with interrupt timing. The change in adjust_int_cycle gets Overdrive working again (vint was not being preferred over hint in some cases). One of the changes seems to have broken Fatal Rewind again, but no other regressions that I can see. Michael Pavone <pavone@retrodev.com> parents: 981 diff changeset	164 next_hint = next_hint < context->current_cycle ? context->current_cycle : next_hint;
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	165 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	166 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	167 context->int_num = 4;
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	168
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	169 }
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	170 }
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	171 }
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	172 }
996 784bc1e45e80 Fix 68K interrupt handling some more. Fatal Rewind is working again. Michael Pavone <pavone@retrodev.com> parents: 995 diff changeset	173 if (context->int_cycle > context->current_cycle && context->int_pending == INT_PENDING_SR_CHANGE) {
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	174 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	175 }
717 22dbdf50d33c Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation. Michael Pavone <pavone@retrodev.com> parents: 700 diff changeset	176 /*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	177 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	178 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	179 }*/
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	180
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	181 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	182 if (context->should_return) {
7022ba865cfd Initial work for allowing loading a ROM from menu Michael Pavone <pavone@retrodev.com> parents: 861 diff changeset	183 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	184 } 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	185 //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	186 //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	187 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	188 }
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	189 /*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	190 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	191 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	192 }
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	193
198 209a37eed3e7 Add support for breaking into the debugger while game is running Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	194 int break_on_sync = 0;
955 229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	195 char *save_state_path;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	196
280 9ee64039ddeb Fix bank register update Mike Pavone <pavone@retrodev.com> parents: 279 diff changeset	197 //#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	198 #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	199 #define dprintf printf
271 969ee17471c5 Protect debug prints for busreq/reset regs with appropriate macros Mike Pavone <pavone@retrodev.com> parents: 268 diff changeset	200 #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	201 #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	202 #define dprintf
271 969ee17471c5 Protect debug prints for busreq/reset regs with appropriate macros Mike Pavone <pavone@retrodev.com> parents: 268 diff changeset	203 #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	204 #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	205
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	206 #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	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 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	209 {
682 7ed1dbb48f61 Merge Michael Pavone <pavone@retrodev.com> parents: 680 559 diff changeset	210 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	211 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	212 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	213 }
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	214
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	215 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	216 {
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	217 #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	218 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	219 z80_run(z_context, mclks);
548 a3afee2271ce Initial work on the x86-32 target Michael Pavone <pavone@retrodev.com> parents: 534 diff changeset	220 } else
a3afee2271ce Initial work on the x86-32 target Michael Pavone <pavone@retrodev.com> parents: 534 diff changeset	221 #endif
a3afee2271ce Initial work on the x86-32 target Michael Pavone <pavone@retrodev.com> parents: 534 diff changeset	222 {
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	223 z_context->current_cycle = mclks;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	224 }
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	225 }
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	226
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	227 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	228 {
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	229 //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	230 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	231 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	232 //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	233 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	234 //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	235 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	236 }
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	237 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	238 ym_run(gen->ym, target);
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	239
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	240 //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	241 }
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	242
978 34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	243 uint32_t last_frame_num;
34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	244
34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	245 //My refresh emulation isn't currently good enough and causes more problems than it solves
34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	246 #ifdef REFRESH_EMULATION
928 8bd82aead087 Minor adjustment to refresh interval to better match latest measurements Michael Pavone <pavone@retrodev.com> parents: 918 diff changeset	247 #define REFRESH_INTERVAL 128
889 2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	248 #define REFRESH_DELAY 2
2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	249 uint32_t last_sync_cycle;
2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	250 uint32_t refresh_counter;
978 34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	251 #endif
34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	252
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	253 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	254 {
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	255 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	256 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	257 z80_context * z_context = gen->z80;
978 34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	258 #ifdef REFRESH_EMULATION
889 2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	259 //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	260 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	261 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	262 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	263 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	264 }
978 34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	265 #endif
889 2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	266
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	267 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	268 sync_z80(z_context, mclks);
695 e1345921e481 Indentation fixup Michael Pavone <pavone@retrodev.com> parents: 693 diff changeset	269 sync_sound(gen, mclks);
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	270 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	271 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	272 //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	273 last_frame_num = v_context->frame;
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	274
1077 1a66d5165ea7 Cleanup the separation of render backend and VDP code in preparation for having extra debug windows. Make determination of H40/H32 based on number of lines in each mode. Michael Pavone <pavone@retrodev.com> parents: 1063 diff changeset	275 if(exit_after){
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	276 --exit_after;
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	277 if (!exit_after) {
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	278 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	279 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	280 }
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	281
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	282 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	283 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	284 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	285 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	286 context->current_cycle -= mclks;
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	287 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	288 gen->ym->current_cycle -= mclks;
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	289 gen->psg->cycles -= mclks;
7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	290 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	291 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	292 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	293 }
700 72ab94527a8a Tiny cleanup Michael Pavone <pavone@retrodev.com> parents: 697 diff changeset	294 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	295 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	296 //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	297 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	298 //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);
953 08346262990b Remove the int number argument to vdp_int_ack since it is no longer used Michael Pavone <pavone@retrodev.com> parents: 951 diff changeset	299 vdp_int_ack(v_context);
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	300 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	301 }
961 750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	302 if (!address && (break_on_sync \|\| gen->save_state)) {
721 20be7d01e312 Better handling of savestate and debug break events with "uncooperative" games/demos Michael Pavone <pavone@retrodev.com> parents: 719 diff changeset	303 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	304 }
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	305 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	306 if (address) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	307 if (break_on_sync) {
695 e1345921e481 Indentation fixup Michael Pavone <pavone@retrodev.com> parents: 693 diff changeset	308 break_on_sync = 0;
e1345921e481 Indentation fixup Michael Pavone <pavone@retrodev.com> parents: 693 diff changeset	309 debugger(context, address);
e1345921e481 Indentation fixup Michael Pavone <pavone@retrodev.com> parents: 693 diff changeset	310 }
961 750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	311 if (gen->save_state && (z_context->pc \|\| (!z_context->reset && !z_context->busreq))) {
750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	312 uint8_t slot = gen->save_state - 1;
750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	313 gen->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	314 //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	315 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	316 {
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	317 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	318 }
961 750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	319 char *save_path;
750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	320 if (slot == QUICK_SAVE_SLOT) {
750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	321 save_path = save_state_path;
750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	322 } else {
750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	323 char slotname[] = "slot_0.gst";
750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	324 slotname[5] = '0' + slot;
1008 51885857c019 Removed assumptions that path separators are Unix style outside of Unix-only verions of functions Michael Pavone <pavone@retrodev.com> parents: 1002 diff changeset	325 char const *parts[] = {gen->save_dir, PATH_SEP, slotname};
961 750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	326 save_path = alloc_concat_m(3, parts);
750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	327 }
750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	328 save_gst(gen, save_path, address);
750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	329 printf("Saved state to %s\n", save_path);
750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	330 if (slot != QUICK_SAVE_SLOT) {
750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	331 free(save_path);
750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	332 }
750995b587a0 Save State menu option is now fully functional. Load state sort of works, but is mostly broken. Michael Pavone <pavone@retrodev.com> parents: 957 diff changeset	333 } else if(gen->save_state) {
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	334 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	335 }
198 209a37eed3e7 Add support for breaking into the debugger while game is running Mike Pavone <pavone@retrodev.com> parents: 197 diff changeset	336 }
978 34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	337 #ifdef REFRESH_EMULATION
889 2d1122123fe9 Approximation of refresh wait states Michael Pavone <pavone@retrodev.com> parents: 885 diff changeset	338 last_sync_cycle = context->current_cycle;
978 34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	339 #endif
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	340 return context;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	341 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	342
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	343 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	344 {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	345 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	346 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	347 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	348 vdp_port &= 0x1F;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	349 //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	350 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	351 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	352 vdp_context *v_context = gen->vdp;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	353 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	354 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	355 uint32_t before_cycle = v_context->cycles;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	356 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	357
149 139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	358 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	359 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	360 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	361 if (v_context->cycles >= gen->frame_end) {
997 560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	362 uint32_t cycle_diff = v_context->cycles - context->current_cycle;
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	363 uint32_t m68k_cycle_diff = (cycle_diff / MCLKS_PER_68K) * MCLKS_PER_68K;
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	364 if (m68k_cycle_diff < cycle_diff) {
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	365 m68k_cycle_diff += MCLKS_PER_68K;
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	366 }
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	367 context->current_cycle += m68k_cycle_diff;
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	368 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	369 sync_components(context, 0);
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	370 gen->bus_busy = 0;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	371 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	372 }
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	373 //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	374 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	375 } 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	376 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	377 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	378 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	379 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	380 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	381 if (v_context->cycles >= gen->frame_end) {
997 560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	382 uint32_t cycle_diff = v_context->cycles - context->current_cycle;
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	383 uint32_t m68k_cycle_diff = (cycle_diff / MCLKS_PER_68K) * MCLKS_PER_68K;
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	384 if (m68k_cycle_diff < cycle_diff) {
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	385 m68k_cycle_diff += MCLKS_PER_68K;
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	386 }
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	387 context->current_cycle += m68k_cycle_diff;
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	388 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	389 sync_components(context, 0);
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	390 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	391 }
997 560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	392 if (!(v_context->flags & FLAG_DMA_RUN)) {
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	393 //two more slots of delay are needed to kill sufficient sprite capacity in Overdrive
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	394 //TODO: Measure exact value with logic analyzer
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	395 vdp_run_context(v_context, v_context->cycles + 1);
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	396 vdp_run_context(v_context, v_context->cycles + 1);
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	397 }
149 139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	398 }
997 560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	399
149 139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	400 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	401 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	402 } else {
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	403 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	404 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress Mike Pavone <pavone@retrodev.com> parents: 144 diff changeset	405 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	406 } else {
697 7f96bd1cb1be Sync fixes and logging to fix more sync issues Michael Pavone <pavone@retrodev.com> parents: 696 diff changeset	407 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	408 //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	409 adjust_int_cycle(context, v_context);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	410 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	411 } 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	412 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	413 }
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	414 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	415 //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);
997 560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	416 uint32_t cycle_diff = v_context->cycles - context->current_cycle;
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	417 uint32_t m68k_cycle_diff = (cycle_diff / MCLKS_PER_68K) * MCLKS_PER_68K;
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	418 if (m68k_cycle_diff < cycle_diff) {
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	419 m68k_cycle_diff += MCLKS_PER_68K;
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	420 }
560da2e455c2 YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though. Michael Pavone <pavone@retrodev.com> parents: 996 diff changeset	421 context->current_cycle += m68k_cycle_diff;
978 34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	422 #ifdef REFRESH_EMULATION
34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	423 last_sync_cycle = context->current_cycle;
34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	424 #endif
680 4996369f1463 Some small synchronization improvements that do not seem to fix anything Michael Pavone <pavone@retrodev.com> parents: 679 diff changeset	425 //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	426 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	427 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	428 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	429 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	430 } 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	431 psg_write(gen->psg, value);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	432 } else {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	433 //TODO: Implement undocumented test register(s)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	434 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	435 return context;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	436 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	437
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	438 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	439 {
357 fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	440 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	441 }
fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	442
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	443 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	444 {
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	445 z80_context * context = vcontext;
357 fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	446 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	447 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	448 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	449 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	450 }
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	451 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	452 //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	453 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	454 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	455 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	456 } 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	457 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	458 } 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	459 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	460 }
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator Mike Pavone <pavone@retrodev.com> parents: 357 diff changeset	461 } 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	462 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	463 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	464 } 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	465 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	466 }
357 fa7ea48be9a9 Allow VDP/PSG writes from Z80 Mike Pavone <pavone@retrodev.com> parents: 356 diff changeset	467 return context;
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	468 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	469
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	470 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	471 {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	472 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	473 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	474 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	475 vdp_port &= 0x1F;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	476 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	477 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	478 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	479 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	480 uint32_t before_cycle = v_context->cycles;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	481 if (vdp_port < 0x10) {
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	482 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	483 value = vdp_data_port_read(v_context);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	484 } 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	485 value = vdp_control_port_read(v_context);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	486 } else {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	487 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	488 //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	489 }
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	490 } 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	491 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	492 } 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	493 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	494 }
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	495 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	496 //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);
978 34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	497 context->current_cycle = v_context->cycles;
34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	498 #ifdef REFRES_EMULATION
34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	499 last_sync_cycle = context->current_cycle;
34b811ea1e7c Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break Michael Pavone <pavone@retrodev.com> parents: 975 diff changeset	500 #endif
680 4996369f1463 Some small synchronization improvements that do not seem to fix anything Michael Pavone <pavone@retrodev.com> parents: 679 diff changeset	501 //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	502 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	503 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	504 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	505 gen->bus_busy = 0;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	506 }
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	507 return value;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	508 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	509
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	510 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	511 {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	512 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	513 if (vdp_port & 1) {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	514 return value;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	515 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	516 return value >> 8;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	517 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	518 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	519
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	520 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	521 {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	522 z80_context * context = vcontext;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	523 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	524 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	525 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	526 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	527 //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	528 //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	529 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	530 //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	531 //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	532 // 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	533 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	534
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	535
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	536 vdp_port &= 0x1F;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	537 uint16_t ret;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	538 if (vdp_port < 0x10) {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	539 //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	540 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	541 if (vdp_port < 4) {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	542 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	543 } 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	544 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	545 } 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	546 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	547 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	548 } else {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	549 //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	550 ret = 0xFFFF;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	551 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	552 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	553 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	554
279 6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	555 uint32_t zram_counter = 0;
6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	556
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	557 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	558 {
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	559 genesis_context * gen = context->system;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	560 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	561 //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	562 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	563 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	564 location &= 0x7FFF;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	565 if (location < 0x4000) {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	566 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	567 #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	568 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	569 #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	570 } 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	571 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	572 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	573 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	574 } 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	575 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	576 } 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	577 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	578 }
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	579 } 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	580 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	581 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	582 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	583 } 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	584 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	585 }
395 0b5f93358a93 Add debugger command for saving Z80 RAM to a file Mike Pavone <pavone@retrodev.com> parents: 392 diff changeset	586 } 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	587 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	588 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	589 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	590 } else {
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	591 location &= 0x1FFF;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	592 if (location < 0x100) {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	593 switch(location/2)
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	594 {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	595 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	596 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	597 break;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	598 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	599 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	600 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	601 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	602 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	603 break;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	604 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	605 gen->ports[0].control = value;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	606 break;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	607 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	608 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	609 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	610 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	611 gen->ports[2].control = value;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	612 break;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	613 }
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	614 } else {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	615 if (location == 0x1100) {
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	616 if (value & 1) {
271 969ee17471c5 Protect debug prints for busreq/reset regs with appropriate macros Mike Pavone <pavone@retrodev.com> parents: 268 diff changeset	617 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	618 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	619 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	620 } else {
687c1dd3bcb9 Fake busack when Z80 is disabled Michael Pavone <pavone@retrodev.com> parents: 672 diff changeset	621 gen->z80->busack = 1;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	622 }
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	623 } 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	624 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	625 dputs("releasing z80 bus");
280 9ee64039ddeb Fix bank register update Mike Pavone <pavone@retrodev.com> parents: 279 diff changeset	626 #ifdef DO_DEBUG_PRINT
279 6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	627 char fname[20];
6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	628 sprintf(fname, "zram-%d", zram_counter++);
6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	629 FILE * f = fopen(fname, "wb");
6be6056735a9 Fix native address lookup in bannked memory area Mike Pavone <pavone@retrodev.com> parents: 276 diff changeset	630 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	631 fclose(f);
280 9ee64039ddeb Fix bank register update Mike Pavone <pavone@retrodev.com> parents: 279 diff changeset	632 #endif
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	633 }
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	634 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	635 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	636 } else {
687c1dd3bcb9 Fake busack when Z80 is disabled Michael Pavone <pavone@retrodev.com> parents: 672 diff changeset	637 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	638 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	639 }
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	640 } 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	641 sync_z80(gen->z80, context->current_cycle);
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	642 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	643 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	644 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	645 } 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	646 gen->z80->reset = 0;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	647 }
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	648 } 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	649 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	650 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	651 } 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	652 gen->z80->reset = 1;
260 625f8e4d5fd2 Initial stab at integartiong Z80 core Mike Pavone <pavone@retrodev.com> parents: 215 diff changeset	653 }
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	654 }
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	655 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	656 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	657 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	658 return context;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	659 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	660
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	661 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	662 {
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	663 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	664 return io_write(location, context, value >> 8);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	665 } 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	666 return io_write(location, context, value);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	667 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	668 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	669
130 0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	670 #define USA 0x80
0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	671 #define JAP 0x00
0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	672 #define EUR 0xC0
0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	673 #define NO_DISK 0x20
0bdbffa9fe90 Make version register return correct value for USA Mike Pavone <pavone@retrodev.com> parents: 115 diff changeset	674 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	675
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	676 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	677 {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	678 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	679 genesis_context *gen = context->system;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	680 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	681 //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	682 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	683 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	684 location &= 0x7FFF;
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	685 if (location < 0x4000) {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	686 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	687 } 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	688 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	689 value = ym_read_status(gen->ym);
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	690 } else {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	691 value = 0xFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	692 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	693 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	694 value = 0xFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	695 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	696 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	697 location &= 0x1FFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	698 if (location < 0x100) {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	699 switch(location/2)
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	700 {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	701 case 0x0:
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	702 //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	703 value = version_reg;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	704 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	705 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	706 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	707 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	708 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	709 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	710 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	711 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	712 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	713 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	714 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	715 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	716 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	717 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	718 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	719 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	720 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	721 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	722 break;
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	723 default:
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	724 value = 0xFF;
153 42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	725 }
42c031184e8a Implement access to Z80 RAM Mike Pavone <pavone@retrodev.com> parents: 149 diff changeset	726 } else {
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	727 if (location == 0x1100) {
677 687c1dd3bcb9 Fake busack when Z80 is disabled Michael Pavone <pavone@retrodev.com> parents: 672 diff changeset	728 value = z80_enabled ? !z80_get_busack(gen->z80, context->current_cycle) : !gen->z80->busack;
981 902c53d9c16f Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing Michael Pavone <pavone@retrodev.com> parents: 978 diff changeset	729 value \|= (get_open_bus_value() >> 8) & 0xFE;
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	730 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	731 } 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	732 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	733 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	734 value = 0xFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	735 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	736 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	737 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	738 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	739 return value;
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	740 }
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	741
467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	742 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	743 {
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	744 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	745 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	746 value = value \| (value << 8);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	747 } 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	748 value <<= 8;
981 902c53d9c16f Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing Michael Pavone <pavone@retrodev.com> parents: 978 diff changeset	749 value \|= get_open_bus_value() & 0xFF;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	750 }
343 467bfa17004a Mostly working runtime generation of memory map read/write functions Mike Pavone <pavone@retrodev.com> parents: 342 diff changeset	751 return value;
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	752 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: 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 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	755 {
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	756 z80_context * context = vcontext;
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	757 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	758 sync_sound(gen, context->current_cycle);
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	759 if (location & 1) {
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	760 ym_data_write(gen->ym, value);
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	761 } else if (location & 2) {
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	762 ym_address_write_part2(gen->ym, value);
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	763 } else {
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	764 ym_address_write_part1(gen->ym, value);
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	765 }
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	766 return context;
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	767 }
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	768
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	769 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	770 {
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	771 z80_context * context = vcontext;
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	772 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	773 sync_sound(gen, context->current_cycle);
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	774 return ym_read_status(gen->ym);
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	775 }
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	776
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	777 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	778 {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	779 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	780 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	781 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	782 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	783 }
660 e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	784 //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	785 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	786 //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	787 //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	788 // 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	789 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	790
660 e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	791 location &= 0x7FFF;
e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	792 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	793 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	794 }
604 39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	795 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	796 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	797 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	798 } else {
660 e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	799 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	800 }
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	801 return 0;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	802 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	803
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	804 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	805 {
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	806 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	807 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	808 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	809 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	810 }
660 e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	811 //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	812 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	813 //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	814 //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	815 // 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	816 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	817
660 e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access Michael Pavone <pavone@retrodev.com> parents: 659 diff changeset	818 location &= 0x7FFF;
604 39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	819 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	820 if (address >= 0xE00000) {
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	821 address &= 0xFFFF;
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	822 ((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	823 } else if (address >= 0xC00000) {
649db9397fa1 Add support for Z80 access to VDP via bank area Michael Pavone <pavone@retrodev.com> parents: 606 diff changeset	824 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	825 } else {
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	826 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	827 }
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	828 return context;
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	829 }
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	830
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	831 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	832 {
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	833 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	834
604 39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	835 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	836 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	837 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	838 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	839 } else {
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	840 context->mem_pointers[1] = NULL;
39d7d463ed5b Get Z80 banked access sort of working again Michael Pavone <pavone@retrodev.com> parents: 602 diff changeset	841 }
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	842
592 4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled Michael Pavone <pavone@retrodev.com> parents: 590 diff changeset	843 return context;
290 171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	844 }
171f97e70d85 Implement writes from Z80 to YM-2612 Mike Pavone <pavone@retrodev.com> parents: 289 diff changeset	845
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	846 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	847 {
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	848 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	849 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	850 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	851 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	852 }
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	853 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	854 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	855 }
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	856
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	857 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	858 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	859 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	860 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	861 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	862 {
1009 883fe974f72b Fix bug in which save RAM/EEPROM was not persisted correctly if the emulator is exited via the menu rather than the X button in the title bar Michael Pavone <pavone@retrodev.com> parents: 1008 diff changeset	863 if (!game_context) {
883fe974f72b Fix bug in which save RAM/EEPROM was not persisted correctly if the emulator is exited via the menu rather than the X button in the title bar Michael Pavone <pavone@retrodev.com> parents: 1008 diff changeset	864 return;
883fe974f72b Fix bug in which save RAM/EEPROM was not persisted correctly if the emulator is exited via the menu rather than the X button in the title bar Michael Pavone <pavone@retrodev.com> parents: 1008 diff changeset	865 }
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	866 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	867 if (!f) {
1009 883fe974f72b Fix bug in which save RAM/EEPROM was not persisted correctly if the emulator is exited via the menu rather than the X button in the title bar Michael Pavone <pavone@retrodev.com> parents: 1008 diff changeset	868 fprintf(stderr, "Failed to open %s file %s for writing\n", game_context->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	869 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	870 }
1009 883fe974f72b Fix bug in which save RAM/EEPROM was not persisted correctly if the emulator is exited via the menu rather than the X button in the title bar Michael Pavone <pavone@retrodev.com> parents: 1008 diff changeset	871 fwrite(game_context->save_storage, 1, game_context->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	872 fclose(f);
1009 883fe974f72b Fix bug in which save RAM/EEPROM was not persisted correctly if the emulator is exited via the menu rather than the X button in the title bar Michael Pavone <pavone@retrodev.com> parents: 1008 diff changeset	873 printf("Saved %s to %s\n", game_context->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	874 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper. Mike Pavone <pavone@retrodev.com> parents: 346 diff changeset	875
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	876 #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	877 const memmap_chunk z80_map[] = {
1082 2ec5e6eaf81d Add support for specifying a reset handler in the M68K core. Adjust memory map initialization to handle extra field. Improved handling of out of bounds execution. Michael Pavone <pavone@retrodev.com> parents: 1077 diff changeset	878 { 0x0000, 0x4000, 0x1FFF, 0, 0, MMAP_READ \| MMAP_WRITE \| MMAP_CODE, z80_ram, NULL, NULL, NULL, NULL },
2ec5e6eaf81d Add support for specifying a reset handler in the M68K core. Adjust memory map initialization to handle extra field. Improved handling of out of bounds execution. Michael Pavone <pavone@retrodev.com> parents: 1077 diff changeset	879 { 0x8000, 0x10000, 0x7FFF, 0, 0, 0, NULL, NULL, NULL, z80_read_bank, z80_write_bank},
2ec5e6eaf81d Add support for specifying a reset handler in the M68K core. Adjust memory map initialization to handle extra field. Improved handling of out of bounds execution. Michael Pavone <pavone@retrodev.com> parents: 1077 diff changeset	880 { 0x4000, 0x6000, 0x0003, 0, 0, 0, NULL, NULL, NULL, z80_read_ym, z80_write_ym},
2ec5e6eaf81d Add support for specifying a reset handler in the M68K core. Adjust memory map initialization to handle extra field. Improved handling of out of bounds execution. Michael Pavone <pavone@retrodev.com> parents: 1077 diff changeset	881 { 0x6000, 0x6100, 0xFFFF, 0, 0, 0, NULL, NULL, NULL, NULL, z80_write_bank_reg},
2ec5e6eaf81d Add support for specifying a reset handler in the M68K core. Adjust memory map initialization to handle extra field. Improved handling of out of bounds execution. Michael Pavone <pavone@retrodev.com> parents: 1077 diff changeset	882 { 0x7F00, 0x8000, 0x00FF, 0, 0, 0, NULL, NULL, NULL, z80_vdp_port_read, z80_vdp_port_write}
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	883 };
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	884 #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	885
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	886 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	887 {
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	888 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	889 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	890
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 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	892 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	893 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	894 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	895 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	896
1002 8d032a368dd5 Made low pass filter frequency configurable Michael Pavone <pavone@retrodev.com> parents: 997 diff changeset	897 char * lowpass_cutoff_str = tern_find_path(config, "audio\0lowpass_cutoff\0").ptrval;
8d032a368dd5 Made low pass filter frequency configurable Michael Pavone <pavone@retrodev.com> parents: 997 diff changeset	898 uint32_t lowpass_cutoff = lowpass_cutoff_str ? atoi(lowpass_cutoff_str) : DEFAULT_LOWPASS_CUTOFF;
8d032a368dd5 Made low pass filter frequency configurable Michael Pavone <pavone@retrodev.com> parents: 997 diff changeset	899
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	900 gen->ym = malloc(sizeof(ym2612_context));
1002 8d032a368dd5 Made low pass filter frequency configurable Michael Pavone <pavone@retrodev.com> parents: 997 diff changeset	901 ym_init(gen->ym, render_sample_rate(), gen->master_clock, MCLKS_PER_YM, render_audio_buffer(), ym_opts, lowpass_cutoff);
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	902
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 gen->psg = malloc(sizeof(psg_context));
1002 8d032a368dd5 Made low pass filter frequency configurable Michael Pavone <pavone@retrodev.com> parents: 997 diff changeset	904 psg_init(gen->psg, render_sample_rate(), gen->master_clock, MCLKS_PER_PSG, render_audio_buffer(), lowpass_cutoff);
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	905
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	906 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	907 #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	908 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	909 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	910 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	911 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	912 #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	913
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	914 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	915 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	916 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	917
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	918 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	919 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	920 gen->zram = z80_ram;
971 e28f365605da Move mouse mode and capture state to emulation context so it persists properly when switching between the menu and the game Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	921 setup_io_devices(config, rom, gen);
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	922
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	923 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	924 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	925 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	926 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	927 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	928 gen->save_storage = rom->save_buffer;
769 4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	929 gen->eeprom_map = rom->eeprom_map;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	930 gen->num_eeprom = rom->num_eeprom;
4638b88bc72d Initial work on I2C EEPROM implementation Michael Pavone <pavone@retrodev.com> parents: 767 diff changeset	931 if (gen->save_type == SAVE_I2C) {
770 a3b90f746dcf Broken EEPROM support Michael Pavone <pavone@retrodev.com> parents: 769 diff changeset	932 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	933 }
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	934 } else {
ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	935 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	936 }
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	937
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	938 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	939 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	940 //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	941 opts->gen.flags \|= M68K_OPT_BROKEN_READ_MODIFY;
1082 2ec5e6eaf81d Add support for specifying a reset handler in the M68K core. Adjust memory map initialization to handle extra field. Improved handling of out of bounds execution. Michael Pavone <pavone@retrodev.com> parents: 1077 diff changeset	942 gen->m68k = init_68k_context(opts, 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	943 gen->m68k->system = gen;
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	944
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	945 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	946 {
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	947 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	948 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	949 }
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	950 }
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	951
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	952 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	953 }
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	954
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	955 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	956 {
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	957 vdp_free(gen->vdp);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	958 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	959 free(gen->m68k);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	960 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	961 free(gen->z80);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	962 ym_free(gen->ym);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	963 psg_free(gen->psg);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	964 free(gen->save_storage);
956 f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	965 free(gen->save_dir);
1016 5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	966 free(gen->lock_on);
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	967 }
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	968
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	969 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	970 {
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	971
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	972 if (statefile) {
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	973 uint32_t pc = load_gst(gen, statefile);
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	974 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	975 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	976 }
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	977 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	978 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	979 insert_breakpoint(gen->m68k, pc, debugger);
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	980 }
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: 447 diff changeset	981 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	982 start_68k_context(gen->m68k, pc);
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	983 } 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	984 if (debugger) {
752 296ddfcf0d43 Minor cleanup in init_run_cpu Michael Pavone <pavone@retrodev.com> parents: 736 diff changeset	985 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	986 insert_breakpoint(gen->m68k, address, debugger);
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	987 }
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	988 m68k_reset(gen->m68k);
211 464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	989 }
464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	990 }
464513050c85 Small bit of cleanup Mike Pavone <pavone@retrodev.com> parents: 198 diff changeset	991
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	992 char *title;
340 58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	993
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	994 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	995 {
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	996 if (title) {
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	997 free(title);
bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	998 title = NULL;
340 58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	999 }
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	1000 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	1001 render_update_caption(title);
340 58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1002 }
58a085cfc6bd Set window title based on ROM header name Mike Pavone <pavone@retrodev.com> parents: 338 diff changeset	1003
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	1004 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	1005 {
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	1006 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	1007 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	1008 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	1009 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	1010 } 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	1011 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	1012 }
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	1013 }
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	1014 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	1015 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	1016 } 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	1017 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	1018 } 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	1019 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	1020 }
341 6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1021 }
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1022
956 f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1023 void setup_saves(char fname, rom_info info, genesis_context *context)
955 229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1024 {
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1025 char * barename = basename_no_extension(fname);
1008 51885857c019 Removed assumptions that path separators are Unix style outside of Unix-only verions of functions Michael Pavone <pavone@retrodev.com> parents: 1002 diff changeset	1026 char const * parts[3] = {get_save_dir(), PATH_SEP, barename};
955 229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1027 char *save_dir = alloc_concat_m(3, parts);
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1028 if (!ensure_dir_exists(save_dir)) {
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1029 warning("Failed to create save directory %s\n", save_dir);
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1030 }
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1031 parts[0] = save_dir;
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1032 parts[2] = info->save_type == SAVE_I2C ? "save.eeprom" : "save.sram";
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1033 free(save_filename);
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1034 save_filename = alloc_concat_m(3, parts);
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1035 parts[2] = "quicksave.gst";
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1036 free(save_state_path);
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1037 save_state_path = alloc_concat_m(3, parts);
956 f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1038 context->save_dir = save_dir;
955 229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1039 free(barename);
956 f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1040 if (info->save_type != SAVE_NONE) {
f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1041 FILE * f = fopen(save_filename, "rb");
f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1042 if (f) {
f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1043 uint32_t read = fread(context->save_storage, 1, info->save_size, f);
f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1044 fclose(f);
f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1045 if (read > 0) {
f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1046 printf("Loaded %s from %s\n", info->save_type == SAVE_I2C ? "EEPROM" : "SRAM", save_filename);
f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1047 }
f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1048 }
f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1049 atexit(persist_save);
f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1050 }
955 229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1051 }
229c23b3ab73 Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states) Michael Pavone <pavone@retrodev.com> parents: 953 diff changeset	1052
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1053 int main(int argc, char ** argv)
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1054 {
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	1055 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	1056 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	1057 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	1058 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	1059 int debug = 0;
407 c3abc4ada43d Add support for logging YM2612 channels to WAVE files Mike Pavone <pavone@retrodev.com> parents: 405 diff changeset	1060 int ym_log = 0;
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1061 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	1062 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	1063 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	1064 FILE *address_log = NULL;
425 8b3ae850d1c4 Forgot to null initialize the statfile pointer Mike Pavone <pavone@retrodev.com> parents: 424 diff changeset	1065 char * statefile = NULL;
1016 5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1066 int rom_size, lock_on_size;
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1067 uint16_t *lock_on = NULL;
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	1068 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	1069 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	1070 uint8_t debug_target = 0;
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1071 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	1072 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	1073 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	1074 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	1075 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	1076 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	1077 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	1078 }
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	1079 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	1080 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	1081 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	1082 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	1083 debuggerfun = (uint8_t *)debugger;
885 e3f5ec336432 Allow menu ROM to be debugged Michael Pavone <pavone@retrodev.com> parents: 884 diff changeset	1084 //allow debugging the menu
e3f5ec336432 Allow menu ROM to be debugged Michael Pavone <pavone@retrodev.com> parents: 884 diff changeset	1085 if (argv[i][2] == 'm') {
e3f5ec336432 Allow menu ROM to be debugged Michael Pavone <pavone@retrodev.com> parents: 884 diff changeset	1086 debug_target = 1;
e3f5ec336432 Allow menu ROM to be debugged Michael Pavone <pavone@retrodev.com> parents: 884 diff changeset	1087 }
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	1088 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	1089 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	1090 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	1091 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	1092 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	1093 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	1094 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	1095 break;
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	1096 case 'g':
501 e1355aa80f4d Use OpenGL by default. Add OpenGL switch to help text Mike Pavone <pavone@retrodev.com> parents: 496 diff changeset	1097 use_gl = 0;
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	1098 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	1099 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	1100 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	1101 break;
464 226ed16b1fb6 Added version flag Mike Pavone <pavone@retrodev.com> parents: 463 diff changeset	1102 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	1103 info_message("blastem %s\n", BLASTEM_VERSION);
464 226ed16b1fb6 Added version flag Mike Pavone <pavone@retrodev.com> parents: 463 diff changeset	1104 return 0;
226ed16b1fb6 Added version flag Mike Pavone <pavone@retrodev.com> parents: 463 diff changeset	1105 break;
265 c6d12878ea93 Add -n flag for disabling the Z80 core Mike Pavone <pavone@retrodev.com> parents: 264 diff changeset	1106 case 'n':
c6d12878ea93 Add -n flag for disabling the Z80 core Mike Pavone <pavone@retrodev.com> parents: 264 diff changeset	1107 z80_enabled = 0;
c6d12878ea93 Add -n flag for disabling the Z80 core Mike Pavone <pavone@retrodev.com> parents: 264 diff changeset	1108 break;
341 6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1109 case 'r':
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1110 i++;
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1111 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	1112 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	1113 }
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	1114 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	1115 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	1116 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	1117 }
6ad8e36de685 Support regions other than USA Mike Pavone <pavone@retrodev.com> parents: 340 diff changeset	1118 break;
424 7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1119 case 's':
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1120 i++;
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1121 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	1122 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	1123 }
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1124 statefile = argv[i];
7e8e179116af Add support for loading GST format savestates Mike Pavone <pavone@retrodev.com> parents: 422 diff changeset	1125 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	1126 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	1127 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	1128 break;
407 c3abc4ada43d Add support for logging YM2612 channels to WAVE files Mike Pavone <pavone@retrodev.com> parents: 405 diff changeset	1129 case 'y':
c3abc4ada43d Add support for logging YM2612 channels to WAVE files Mike Pavone <pavone@retrodev.com> parents: 405 diff changeset	1130 ym_log = 1;
c3abc4ada43d Add support for logging YM2612 channels to WAVE files Mike Pavone <pavone@retrodev.com> parents: 405 diff changeset	1131 break;
1016 5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1132 case 'o': {
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1133 i++;
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1134 if (i >= argc) {
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1135 fatal_error("-o must be followed by a lock on cartridge filename\n");
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1136 }
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1137 uint16_t *tmp = cart;
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1138 lock_on_size = load_rom(argv[i]);
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1139 if (lock_on_size) {
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1140 byteswap_rom(lock_on_size);
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1141 lock_on = cart;
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1142 } else {
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1143 fatal_error("Failed to load lock on cartridge %s\n", argv[i]);
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1144 }
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1145 cart = tmp;
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1146 break;
5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1147 }
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1148 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	1149 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	1150 "Usage: blastem [OPTIONS] ROMFILE [WIDTH] [HEIGHT]\n"
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1151 "Options:\n"
a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1152 " -h Print this help text\n"
a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1153 " -r (J\|U\|E) Force region to Japan, US or Europe respectively\n"
1017 216fa63749b3 Added documentation for lock-on support and a fullscreen config option. Michael Pavone <pavone@retrodev.com> parents: 1016 diff changeset	1154 " -f Toggles fullscreen mode\n"
501 e1355aa80f4d Use OpenGL by default. Add OpenGL switch to help text Mike Pavone <pavone@retrodev.com> parents: 496 diff changeset	1155 " -g Disable OpenGL rendering\n"
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1156 " -s FILE Load a GST format savestate from FILE\n"
1017 216fa63749b3 Added documentation for lock-on support and a fullscreen config option. Michael Pavone <pavone@retrodev.com> parents: 1016 diff changeset	1157 " -o FILE Load FILE as a lock-on cartridge\n"
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1158 " -d Enter debugger on startup\n"
a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1159 " -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	1160 " -v Display version number and exit\n"
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1161 " -l Log 68K code addresses (useful for assemblers)\n"
a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1162 " -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	1163 );
a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1164 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	1165 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	1166 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	1167 }
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1168 } else if (!loaded) {
767 ea525f600b1d SRAM detection from ROM header is no working correctly again Michael Pavone <pavone@retrodev.com> parents: 766 diff changeset	1169 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	1170 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	1171 }
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	1172 romfname = argv[i];
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1173 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	1174 } 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	1175 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	1176 } 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	1177 height = atoi(argv[i]);
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1178 }
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1179 }
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	1180 uint8_t menu = !loaded;
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1181 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	1182 //load menu
948 f87522554d7b Allow changing the 68K clock divider in the config file Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	1183 romfname = tern_find_path(config, "ui\0rom\0").ptrval;
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	1184 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	1185 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	1186 }
1008 51885857c019 Removed assumptions that path separators are Unix style outside of Unix-only verions of functions Michael Pavone <pavone@retrodev.com> parents: 1002 diff changeset	1187 if (is_absolute_path(romfname)) {
875 54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1188 if (!(rom_size = load_rom(romfname))) {
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1189 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	1190 }
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1191 } else {
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1192 long fsize;
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1193 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	1194 if (!cart) {
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1195 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	1196 }
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1197 rom_size = nearest_pow2(fsize);
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1198 if (rom_size > fsize) {
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1199 cart = realloc(cart, rom_size);
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1200 }
54ffba3768d6 Make menu stuff work on Android (theoretically) Michael Pavone <pavone@retrodev.com> parents: 874 diff changeset	1201 }
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	1202 //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	1203
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	1204 loaded = 1;
463 a1d298119153 Added -h help text option Mike Pavone <pavone@retrodev.com> parents: 458 diff changeset	1205 }
948 f87522554d7b Allow changing the 68K clock divider in the config file Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	1206 char *m68k_divider = tern_find_path(config, "clocks\0m68k_divider\0").ptrval;
f87522554d7b Allow changing the 68K clock divider in the config file Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	1207 if (!m68k_divider) {
f87522554d7b Allow changing the 68K clock divider in the config file Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	1208 m68k_divider = "7";
f87522554d7b Allow changing the 68K clock divider in the config file Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	1209 }
f87522554d7b Allow changing the 68K clock divider in the config file Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	1210 MCLKS_PER_68K = atoi(m68k_divider);
f87522554d7b Allow changing the 68K clock divider in the config file Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	1211 if (!MCLKS_PER_68K) {
f87522554d7b Allow changing the 68K clock divider in the config file Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	1212 MCLKS_PER_68K = 7;
f87522554d7b Allow changing the 68K clock divider in the config file Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	1213 }
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	1214 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	1215 memmap_chunk base_map[] = {
1082 2ec5e6eaf81d Add support for specifying a reset handler in the M68K core. Adjust memory map initialization to handle extra field. Improved handling of out of bounds execution. Michael Pavone <pavone@retrodev.com> parents: 1077 diff changeset	1216 {0xE00000, 0x1000000, 0xFFFF, 0, 0, MMAP_READ \| MMAP_WRITE \| MMAP_CODE, ram,
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	1217 NULL, NULL, NULL, NULL},
1082 2ec5e6eaf81d Add support for specifying a reset handler in the M68K core. Adjust memory map initialization to handle extra field. Improved handling of out of bounds execution. Michael Pavone <pavone@retrodev.com> parents: 1077 diff changeset	1218 {0xC00000, 0xE00000, 0x1FFFFF, 0, 0, 0, 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	1219 (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	1220 (read_8_fun)vdp_port_read_b, (write_8_fun)vdp_port_write_b},
1082 2ec5e6eaf81d Add support for specifying a reset handler in the M68K core. Adjust memory map initialization to handle extra field. Improved handling of out of bounds execution. Michael Pavone <pavone@retrodev.com> parents: 1077 diff changeset	1221 {0xA00000, 0xA12000, 0x1FFFF, 0, 0, 0, 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	1222 (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	1223 (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	1224 };
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	1225 tern_node *rom_db = load_rom_db();
1016 5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1226 rom_info info = configure_rom(rom_db, cart, rom_size, lock_on, lock_on_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	1227 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	1228 set_region(&info, force_version);
764 bb60259e8edf Initial work on ROM database Michael Pavone <pavone@retrodev.com> parents: 753 diff changeset	1229 update_title(info.name);
433 ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1230 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	1231 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	1232 if (config_width) {
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1233 def_width = atoi(config_width);
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1234 }
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1235 if (!def_width) {
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1236 def_width = 640;
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1237 }
ed4d0017c041 Read default render width from config file Mike Pavone <pavone@retrodev.com> parents: 430 diff changeset	1238 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	1239 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	1240 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	1241 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	1242 fps = 50;
15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	1243 }
1017 216fa63749b3 Added documentation for lock-on support and a fullscreen config option. Michael Pavone <pavone@retrodev.com> parents: 1016 diff changeset	1244 char *config_fullscreen = tern_find_path(config, "video\0fullscreen\0").ptrval;
216fa63749b3 Added documentation for lock-on support and a fullscreen config option. Michael Pavone <pavone@retrodev.com> parents: 1016 diff changeset	1245 if (config_fullscreen && !strcmp("on", config_fullscreen)) {
216fa63749b3 Added documentation for lock-on support and a fullscreen config option. Michael Pavone <pavone@retrodev.com> parents: 1016 diff changeset	1246 fullscreen = !fullscreen;
216fa63749b3 Added documentation for lock-on support and a fullscreen config option. Michael Pavone <pavone@retrodev.com> parents: 1016 diff changeset	1247 }
354 15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though. Mike Pavone <pavone@retrodev.com> parents: 351 diff changeset	1248 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	1249 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	1250 }
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	1251
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	1252 genesis = alloc_init_genesis(&info, fps, (ym_log && !menu) ? YM_OPT_WAVE_LOG : 0);
1016 5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1253 genesis->lock_on = lock_on;
956 f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1254 setup_saves(romfname, &info, genesis);
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	1255 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	1256 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	1257 } 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	1258 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	1259 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	1260 }
488 32f053ad9b02 Basic OpenGL rendering is working Mike Pavone <pavone@retrodev.com> parents: 487 diff changeset	1261
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1262 set_keybindings(genesis->ports);
885 e3f5ec336432 Allow menu ROM to be debugged Michael Pavone <pavone@retrodev.com> parents: 884 diff changeset	1263 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	1264 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	1265 {
949 5e4fb650de58 Make Exit option in menu work Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	1266 if (genesis->should_exit) {
5e4fb650de58 Make Exit option in menu work Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	1267 break;
5e4fb650de58 Make Exit option in menu work Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	1268 }
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	1269 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	1270 if (game_context) {
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1271 if (game_context->save_type != SAVE_NONE) {
940 4f4f8385da8d Fix saving of SRAM/EEPROM when switching games in menu Michael Pavone <pavone@retrodev.com> parents: 939 diff changeset	1272 genesis = game_context;
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1273 persist_save();
940 4f4f8385da8d Fix saving of SRAM/EEPROM when switching games in menu Michael Pavone <pavone@retrodev.com> parents: 939 diff changeset	1274 genesis = menu_context;
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1275 }
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1276 free(game_context->cart);
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1277 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	1278 } else {
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1279 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	1280 }
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1281 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	1282 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	1283 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	1284 }
1016 5fb64487b6e1 Very basic support for S&K lock-on. Needs more work for full functionality. Michael Pavone <pavone@retrodev.com> parents: 1009 diff changeset	1285 info = configure_rom(rom_db, cart, rom_size, NULL, 0, base_map, sizeof(base_map)/sizeof(base_map[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	1286 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	1287 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	1288 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	1289 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	1290 //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	1291 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	1292 } else {
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1293 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	1294 mark_all_free();
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1295 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	1296 }
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1297 //allocate new genesis context
252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1298 game_context = alloc_init_genesis(&info, fps, ym_log ? YM_OPT_WAVE_LOG : 0);
957 1618d3676a35 Save state menu WIP Michael Pavone <pavone@retrodev.com> parents: 956 diff changeset	1299 menu_context->next_context = game_context;
1618d3676a35 Save state menu WIP Michael Pavone <pavone@retrodev.com> parents: 956 diff changeset	1300 game_context->next_context = menu_context;
956 f5550cdffe49 Saving the save directory in the rom_info struct didn't make sense. It should be in the console context. Michael Pavone <pavone@retrodev.com> parents: 955 diff changeset	1301 setup_saves(menu_context->next_rom, &info, 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	1302 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	1303 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	1304 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	1305 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	1306 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	1307 map_all_bindings(genesis->ports);
885 e3f5ec336432 Allow menu ROM to be debugged Michael Pavone <pavone@retrodev.com> parents: 884 diff changeset	1308 start_genesis(genesis, statefile, menu == debug_target ? debuggerfun : NULL);
949 5e4fb650de58 Make Exit option in menu work Michael Pavone <pavone@retrodev.com> parents: 940 diff changeset	1309 } else if (menu && 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	1310 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	1311 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	1312 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	1313 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	1314 menu = 0;
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1315 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	1316 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	1317 } 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	1318 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	1319 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	1320 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	1321 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	1322 menu = 1;
884 252dfd29831d Selecting a second game from the menu now works Michael Pavone <pavone@retrodev.com> parents: 883 diff changeset	1323 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	1324 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	1325 } 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	1326 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	1327 }
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	1328 }
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	1329
88 c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1330 return 0;
c339559f1d4f Forgot to add blastem main file earlier Mike Pavone <pavone@retrodev.com> parents: diff changeset	1331 }

Mercurial > repos > blastem

annotate blastem.c @ 1096:1ab30d427db8