repos/blastem: gst.c annotate

annotate gst.c @ 1925:039553703c20

Don't apply address and cd register changes to the 'live' registers until pending flag is cleared, but do preserve the upper address bits in the latch. Fixes regression in Overdrive 2 while preserving fix to Mona in 344 bytes

author	Michael Pavone <pavone@retrodev.com>
date	Mon, 13 Apr 2020 20:43:25 -0700
parents	2d462aa78349
children	f699f9d500b4

rev	line source
467 140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING Mike Pavone <pavone@retrodev.com> parents: 451 diff changeset	1 /*
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING Mike Pavone <pavone@retrodev.com> parents: 451 diff changeset	2 Copyright 2013 Michael Pavone
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: 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: 451 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: 451 diff changeset	5 */
1103 22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well. Michael Pavone <pavone@retrodev.com> parents: 1077 diff changeset	6 #include "genesis.h"
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	7 #include "gst.h"
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	8 #include <string.h>
1103 22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well. Michael Pavone <pavone@retrodev.com> parents: 1077 diff changeset	9 #include <stdio.h>
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	10
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	11 #define GST_68K_REGS 0x80
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	12 #define GST_68K_REG_SIZE (0xDA-GST_68K_REGS)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	13 #define GST_68K_PC_OFFSET (0xC8-GST_68K_REGS)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	14 #define GST_68K_SR_OFFSET (0xD0-GST_68K_REGS)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	15 #define GST_68K_USP_OFFSET (0xD2-GST_68K_REGS)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	16 #define GST_68K_SSP_OFFSET (0xD6-GST_68K_REGS)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	17 #define GST_68K_RAM 0x2478
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	18 #define GST_Z80_REGS 0x404
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	19 #define GST_Z80_REG_SIZE (0x440-GST_Z80_REGS)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	20 #define GST_Z80_RAM 0x474
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	21 #define GST_VDP_REGS 0xFA
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	22 #define GST_VDP_MEM 0x12478
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	23 #define GST_YM_OFFSET 0x1E4
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	24 #define GST_YM_SIZE (0x3E4-GST_YM_OFFSET)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	25
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	26 uint32_t read_le_32(uint8_t * data)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	27 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	28 return data[3] << 24 \| data[2] << 16 \| data[1] << 8 \| data[0];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	29 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	30
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	31 uint16_t read_le_16(uint8_t * data)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	32 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	33 return data[1] << 8 \| data[0];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	34 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	35
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	36 uint16_t read_be_16(uint8_t * data)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	37 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	38 return data[0] << 8 \| data[1];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	39 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	40
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	41 void write_le_32(uint8_t * dst, uint32_t val)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	42 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	43 dst[0] = val;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	44 dst[1] = val >> 8;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	45 dst[2] = val >> 16;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	46 dst[3] = val >> 24;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	47 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	48
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	49 void write_le_16(uint8_t * dst, uint16_t val)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	50 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	51 dst[0] = val;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	52 dst[1] = val >> 8;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	53 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	54
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	55 void write_be_32(uint8_t * dst, uint32_t val)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	56 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	57 dst[0] = val >> 24;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	58 dst[1] = val >> 16;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	59 dst[2] = val >> 8;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	60 dst[3] = val;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	61 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	62
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	63 void write_be_16(uint8_t * dst, uint16_t val)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	64 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	65 dst[0] = val >> 8;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	66 dst[1] = val;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	67 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	68
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	69 uint32_t m68k_load_gst(m68k_context * context, FILE * gstfile)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	70 {
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	71 uint8_t buffer[GST_68K_REG_SIZE];
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	72 fseek(gstfile, GST_68K_REGS, SEEK_SET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	73 if (fread(buffer, 1, GST_68K_REG_SIZE, gstfile) != GST_68K_REG_SIZE) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	74 fputs("Failed to read 68K registers from savestate\n", stderr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	75 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	76 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	77 uint8_t * curpos = buffer;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	78 for (int i = 0; i < 8; i++) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	79 context->dregs[i] = read_le_32(curpos);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	80 curpos += sizeof(uint32_t);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	81 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	82 for (int i = 0; i < 8; i++) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	83 context->aregs[i] = read_le_32(curpos);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	84 curpos += sizeof(uint32_t);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	85 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	86 uint32_t pc = read_le_32(buffer + GST_68K_PC_OFFSET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	87 uint16_t sr = read_le_16(buffer + GST_68K_SR_OFFSET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	88 context->status = sr >> 8;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	89 for (int flag = 4; flag >= 0; flag--) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	90 context->flags[flag] = sr & 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	91 sr >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	92 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	93 if (context->status & (1 << 5)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	94 context->aregs[8] = read_le_32(buffer + GST_68K_USP_OFFSET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	95 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	96 context->aregs[8] = read_le_32(buffer + GST_68K_SSP_OFFSET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	97 }
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	98
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	99 return pc;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	100 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	101
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	102 uint8_t m68k_save_gst(m68k_context * context, uint32_t pc, FILE * gstfile)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	103 {
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	104 uint8_t buffer[GST_68K_REG_SIZE];
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	105 uint8_t * curpos = buffer;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	106 for (int i = 0; i < 8; i++) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	107 write_le_32(curpos, context->dregs[i]);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	108 curpos += sizeof(uint32_t);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	109 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	110 for (int i = 0; i < 8; i++) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	111 write_le_32(curpos, context->aregs[i]);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	112 curpos += sizeof(uint32_t);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	113 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	114 write_le_32(buffer + GST_68K_PC_OFFSET, pc);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	115 uint16_t sr = context->status << 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	116 for (int flag = 4; flag >= 0; flag--) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	117 sr <<= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	118 sr \|= context->flags[flag];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	119 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	120 write_le_16(buffer + GST_68K_SR_OFFSET, sr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	121 if (context->status & (1 << 5)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	122 write_le_32(buffer + GST_68K_USP_OFFSET, context->aregs[8]);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	123 write_le_32(buffer + GST_68K_SSP_OFFSET, context->aregs[7]);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	124 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	125 write_le_32(buffer + GST_68K_USP_OFFSET, context->aregs[7]);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	126 write_le_32(buffer + GST_68K_SSP_OFFSET, context->aregs[8]);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	127 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	128 fseek(gstfile, GST_68K_REGS, SEEK_SET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	129 if (fwrite(buffer, 1, GST_68K_REG_SIZE, gstfile) != GST_68K_REG_SIZE) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	130 fputs("Failed to write 68K registers to savestate\n", stderr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	131 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	132 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	133
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	134 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	135 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	136
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	137 uint8_t z80_load_gst(z80_context * context, FILE * gstfile)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	138 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	139 uint8_t regdata[GST_Z80_REG_SIZE];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	140 fseek(gstfile, GST_Z80_REGS, SEEK_SET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	141 if (fread(regdata, 1, sizeof(regdata), gstfile) != sizeof(regdata)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	142 fputs("Failed to read Z80 registers from savestate\n", stderr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	143 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	144 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	145 uint8_t * curpos = regdata;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	146 uint8_t f = *(curpos++);
1752 d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable Michael Pavone <pavone@retrodev.com> parents: 1429 diff changeset	147 #ifndef NEW_CORE
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	148 context->flags[ZF_C] = f & 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	149 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	150 context->flags[ZF_N] = f & 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	151 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	152 context->flags[ZF_PV] = f & 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	153 f >>= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	154 context->flags[ZF_H] = f & 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	155 f >>= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	156 context->flags[ZF_Z] = f & 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	157 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	158 context->flags[ZF_S] = f;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	159
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	160 context->regs[Z80_A] = *curpos;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	161 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	162 for (int reg = Z80_C; reg <= Z80_IYH; reg++) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	163 context->regs[reg++] = *(curpos++);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	164 context->regs[reg] = *curpos;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	165 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	166 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	167 context->pc = read_le_16(curpos);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	168 curpos += 4;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	169 context->sp = read_le_16(curpos);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	170 curpos += 4;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	171 f = *(curpos++);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	172 context->alt_flags[ZF_C] = f & 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	173 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	174 context->alt_flags[ZF_N] = f & 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	175 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	176 context->alt_flags[ZF_PV] = f & 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	177 f >>= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	178 context->alt_flags[ZF_H] = f & 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	179 f >>= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	180 context->alt_flags[ZF_Z] = f & 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	181 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	182 context->alt_flags[ZF_S] = f;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	183 context->alt_regs[Z80_A] = *curpos;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	184 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	185 for (int reg = Z80_C; reg <= Z80_H; reg++) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	186 context->alt_regs[reg++] = *(curpos++);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	187 context->alt_regs[reg] = *curpos;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	188 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	189 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	190 context->regs[Z80_I] = *curpos;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	191 curpos += 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	192 context->iff1 = context->iff2 = *curpos;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	193 curpos += 2;
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: 467 diff changeset	194 context->reset = !*(curpos++);
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: 467 diff changeset	195 context->busreq = *curpos;
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	196 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	197 uint32_t bank = read_le_32(curpos);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	198 if (bank < 0x400000) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	199 context->mem_pointers[1] = context->mem_pointers[2] + bank;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	200 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	201 context->mem_pointers[1] = NULL;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	202 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	203 context->bank_reg = bank >> 15;
1752 d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable Michael Pavone <pavone@retrodev.com> parents: 1429 diff changeset	204 #endif
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	205 uint8_t buffer[Z80_RAM_BYTES];
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	206 fseek(gstfile, GST_Z80_RAM, SEEK_SET);
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	207 if(fread(buffer, 1, sizeof(buffer), gstfile) != (8*1024)) {
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	208 fputs("Failed to read Z80 RAM from savestate\n", stderr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	209 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	210 }
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	211 for (int i = 0; i < Z80_RAM_BYTES; i++)
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	212 {
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	213 if (context->mem_pointers[0][i] != buffer[i]) {
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	214 context->mem_pointers[0][i] = buffer[i];
1752 d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable Michael Pavone <pavone@retrodev.com> parents: 1429 diff changeset	215 #ifndef NEW_CORE
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	216 z80_handle_code_write(i, context);
1752 d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable Michael Pavone <pavone@retrodev.com> parents: 1429 diff changeset	217 #endif
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	218 }
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	219 }
1752 d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable Michael Pavone <pavone@retrodev.com> parents: 1429 diff changeset	220 #ifndef NEW_CORE
1019 e34334e6c682 Fix GST savestate loading to deal with SAT cache to fix sprite corruption on savestate load. Clear out Z80 native_pc so the Z80 state does not get hosed when loading a savestate while the emulator is already running Michael Pavone <pavone@retrodev.com> parents: 962 diff changeset	221 context->native_pc = NULL;
1112 7ab7c8fb34ba Fix intermittent crash in GST savestate loading Michael Pavone <pavone@retrodev.com> parents: 1111 diff changeset	222 context->extra_pc = NULL;
1752 d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable Michael Pavone <pavone@retrodev.com> parents: 1429 diff changeset	223 #endif
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	224 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	225 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	226
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	227 uint8_t vdp_load_gst(vdp_context * context, FILE * state_file)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	228 {
1019 e34334e6c682 Fix GST savestate loading to deal with SAT cache to fix sprite corruption on savestate load. Clear out Z80 native_pc so the Z80 state does not get hosed when loading a savestate while the emulator is already running Michael Pavone <pavone@retrodev.com> parents: 962 diff changeset	229 uint8_t tmp_buf[VRAM_SIZE];
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	230 fseek(state_file, GST_VDP_REGS, SEEK_SET);
1181 0928b68fef2a Update gst loader to deal with VDP changes Michael Pavone <pavone@retrodev.com> parents: 1120 diff changeset	231 if (fread(tmp_buf, 1, VDP_REGS, state_file) != VDP_REGS) {
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	232 fputs("Failed to read VDP registers from savestate\n", stderr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	233 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	234 }
1181 0928b68fef2a Update gst loader to deal with VDP changes Michael Pavone <pavone@retrodev.com> parents: 1120 diff changeset	235 for (uint16_t i = 0; i < VDP_REGS; i++)
0928b68fef2a Update gst loader to deal with VDP changes Michael Pavone <pavone@retrodev.com> parents: 1120 diff changeset	236 {
0928b68fef2a Update gst loader to deal with VDP changes Michael Pavone <pavone@retrodev.com> parents: 1120 diff changeset	237 vdp_control_port_write(context, 0x8000 \| (i << 8) \| tmp_buf[i]);
0928b68fef2a Update gst loader to deal with VDP changes Michael Pavone <pavone@retrodev.com> parents: 1120 diff changeset	238 }
1019 e34334e6c682 Fix GST savestate loading to deal with SAT cache to fix sprite corruption on savestate load. Clear out Z80 native_pc so the Z80 state does not get hosed when loading a savestate while the emulator is already running Michael Pavone <pavone@retrodev.com> parents: 962 diff changeset	239 if (fread(tmp_buf, 1, CRAM_SIZE2, state_file) != CRAM_SIZE2) {
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	240 fputs("Failed to read CRAM from savestate\n", stderr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	241 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	242 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	243 for (int i = 0; i < CRAM_SIZE; i++) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	244 uint16_t value;
1429 7e67f8a37051 write_cram_internal takes a CRAM index, not a CRAM address Michael Pavone <pavone@retrodev.com> parents: 1428 diff changeset	245 write_cram_internal(context, i, (tmp_buf[i2+1] << 8) \| tmp_buf[i2]);
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	246 }
1906 2d462aa78349 Make VDP VSRAM capacity respect model selection Michael Pavone <pavone@retrodev.com> parents: 1752 diff changeset	247 if (fread(tmp_buf, 2, MIN_VSRAM_SIZE, state_file) != MIN_VSRAM_SIZE) {
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	248 fputs("Failed to read VSRAM from savestate\n", stderr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	249 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	250 }
1906 2d462aa78349 Make VDP VSRAM capacity respect model selection Michael Pavone <pavone@retrodev.com> parents: 1752 diff changeset	251 for (int i = 0; i < MIN_VSRAM_SIZE; i++) {
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	252 context->vsram[i] = (tmp_buf[i2+1] << 8) \| tmp_buf[i2];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	253 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	254 fseek(state_file, GST_VDP_MEM, SEEK_SET);
1019 e34334e6c682 Fix GST savestate loading to deal with SAT cache to fix sprite corruption on savestate load. Clear out Z80 native_pc so the Z80 state does not get hosed when loading a savestate while the emulator is already running Michael Pavone <pavone@retrodev.com> parents: 962 diff changeset	255 if (fread(tmp_buf, 1, VRAM_SIZE, state_file) != VRAM_SIZE) {
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	256 fputs("Failed to read VRAM from savestate\n", stderr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	257 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	258 }
1019 e34334e6c682 Fix GST savestate loading to deal with SAT cache to fix sprite corruption on savestate load. Clear out Z80 native_pc so the Z80 state does not get hosed when loading a savestate while the emulator is already running Michael Pavone <pavone@retrodev.com> parents: 962 diff changeset	259 for (int i = 0; i < VRAM_SIZE; i++) {
1333 69c25e1188e5 Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2 Michael Pavone <pavone@retrodev.com> parents: 1325 diff changeset	260 context->vdpmem[i] = tmp_buf[i];
69c25e1188e5 Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2 Michael Pavone <pavone@retrodev.com> parents: 1325 diff changeset	261 vdp_check_update_sat_byte(context, i, tmp_buf[i]);
1019 e34334e6c682 Fix GST savestate loading to deal with SAT cache to fix sprite corruption on savestate load. Clear out Z80 native_pc so the Z80 state does not get hosed when loading a savestate while the emulator is already running Michael Pavone <pavone@retrodev.com> parents: 962 diff changeset	262 }
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	263 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	264 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	265
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	266 uint8_t vdp_save_gst(vdp_context * context, FILE * outfile)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	267 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	268 uint8_t tmp_buf[CRAM_SIZE*2];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	269 fseek(outfile, GST_VDP_REGS, SEEK_SET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	270 if(fwrite(context->regs, 1, VDP_REGS, outfile) != VDP_REGS) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	271 fputs("Error writing VDP regs to savestate\n", stderr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	272 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	273 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	274 for (int i = 0; i < CRAM_SIZE; i++)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	275 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	276 tmp_buf[i*2] = context->cram[i];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	277 tmp_buf[i*2+1] = context->cram[i] >> 8;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	278 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	279 if (fwrite(tmp_buf, 1, sizeof(tmp_buf), outfile) != sizeof(tmp_buf)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	280 fputs("Error writing CRAM to savestate\n", stderr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	281 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	282 }
1906 2d462aa78349 Make VDP VSRAM capacity respect model selection Michael Pavone <pavone@retrodev.com> parents: 1752 diff changeset	283 for (int i = 0; i < MIN_VSRAM_SIZE; i++)
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	284 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	285 tmp_buf[i*2] = context->vsram[i];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	286 tmp_buf[i*2+1] = context->vsram[i] >> 8;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	287 }
1906 2d462aa78349 Make VDP VSRAM capacity respect model selection Michael Pavone <pavone@retrodev.com> parents: 1752 diff changeset	288 if (fwrite(tmp_buf, 2, MIN_VSRAM_SIZE, outfile) != MIN_VSRAM_SIZE) {
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	289 fputs("Error writing VSRAM to savestate\n", stderr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	290 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	291 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	292 fseek(outfile, GST_VDP_MEM, SEEK_SET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	293 if (fwrite(context->vdpmem, 1, VRAM_SIZE, outfile) != VRAM_SIZE) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	294 fputs("Error writing VRAM to savestate\n", stderr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	295 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	296 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	297 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	298 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	299
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	300 uint8_t z80_save_gst(z80_context * context, FILE * gstfile)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	301 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	302 uint8_t regdata[GST_Z80_REG_SIZE];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	303 uint8_t * curpos = regdata;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	304 memset(regdata, 0, sizeof(regdata));
1752 d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable Michael Pavone <pavone@retrodev.com> parents: 1429 diff changeset	305 #ifndef NEW_CORE
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	306 uint8_t f = context->flags[ZF_S];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	307 f <<= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	308 f \|= context->flags[ZF_Z] ;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	309 f <<= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	310 f \|= context->flags[ZF_H];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	311 f <<= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	312 f \|= context->flags[ZF_PV];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	313 f <<= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	314 f \|= context->flags[ZF_N];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	315 f <<= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	316 f \|= context->flags[ZF_C];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	317 *(curpos++) = f;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	318 *curpos = context->regs[Z80_A];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	319
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	320 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	321 for (int reg = Z80_C; reg <= Z80_IYH; reg++) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	322 *(curpos++) = context->regs[reg++];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	323 *curpos = context->regs[reg];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	324 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	325 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	326 write_le_16(curpos, context->pc);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	327 curpos += 4;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	328 write_le_16(curpos, context->sp);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	329 curpos += 4;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	330 f = context->alt_flags[ZF_S];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	331 f <<= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	332 f \|= context->alt_flags[ZF_Z] ;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	333 f <<= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	334 f \|= context->alt_flags[ZF_H];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	335 f <<= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	336 f \|= context->alt_flags[ZF_PV];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	337 f <<= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	338 f \|= context->alt_flags[ZF_N];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	339 f <<= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	340 f \|= context->alt_flags[ZF_C];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	341 *(curpos++) = f;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	342 *curpos = context->alt_regs[Z80_A];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	343 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	344 for (int reg = Z80_C; reg <= Z80_H; reg++) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	345 *(curpos++) = context->alt_regs[reg++];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	346 *curpos = context->alt_regs[reg];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	347 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	348 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	349 *curpos = context->regs[Z80_I];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	350 curpos += 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	351 *curpos = context->iff1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	352 curpos += 2;
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: 467 diff changeset	353 *(curpos++) = !context->reset;
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: 467 diff changeset	354 *curpos = context->busreq;
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	355 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	356 uint32_t bank = context->bank_reg << 15;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	357 write_le_32(curpos, bank);
1752 d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable Michael Pavone <pavone@retrodev.com> parents: 1429 diff changeset	358 #endif
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	359 fseek(gstfile, GST_Z80_REGS, SEEK_SET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	360 if (fwrite(regdata, 1, sizeof(regdata), gstfile) != sizeof(regdata)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	361 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	362 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	363 fseek(gstfile, GST_Z80_RAM, SEEK_SET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	364 if(fwrite(context->mem_pointers[0], 1, 81024, gstfile) != (81024)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	365 fputs("Failed to write Z80 RAM to savestate\n", stderr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	366 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	367 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	368 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	369 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	370
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	371 uint8_t ym_load_gst(ym2612_context * context, FILE * gstfile)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	372 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	373 uint8_t regdata[GST_YM_SIZE];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	374 fseek(gstfile, GST_YM_OFFSET, SEEK_SET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	375 if (fread(regdata, 1, sizeof(regdata), gstfile) != sizeof(regdata)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	376 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	377 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	378 for (int i = 0; i < sizeof(regdata); i++) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	379 if (i & 0x100) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	380 ym_address_write_part2(context, i & 0xFF);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	381 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	382 ym_address_write_part1(context, i);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	383 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	384 ym_data_write(context, regdata[i]);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	385 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	386 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	387 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	388
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	389 uint8_t ym_save_gst(ym2612_context * context, FILE * gstfile)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	390 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	391 uint8_t regdata[GST_YM_SIZE];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	392 for (int i = 0; i < sizeof(regdata); i++) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	393 if (i & 0x100) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	394 int reg = (i & 0xFF);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	395 if (reg >= YM_PART2_START && reg < YM_REG_END) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	396 regdata[i] = context->part2_regs[reg-YM_PART2_START];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	397 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	398 regdata[i] = 0xFF;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	399 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	400 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	401 if (i >= YM_PART1_START && i < YM_REG_END) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	402 regdata[i] = context->part1_regs[i-YM_PART1_START];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	403 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	404 regdata[i] = 0xFF;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	405 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	406 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	407 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	408 fseek(gstfile, GST_YM_OFFSET, SEEK_SET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	409 if (fwrite(regdata, 1, sizeof(regdata), gstfile) != sizeof(regdata)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	410 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	411 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	412 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	413 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	414
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	415 uint32_t load_gst(genesis_context * gen, char * fname)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	416 {
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	417 char buffer[4096];
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	418 FILE * gstfile = fopen(fname, "rb");
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	419 if (!gstfile) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	420 fprintf(stderr, "Could not open file %s for reading\n", fname);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	421 goto error;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	422 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	423 char ident[5];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	424 if (fread(ident, 1, sizeof(ident), gstfile) != sizeof(ident)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	425 fprintf(stderr, "Could not read ident code from %s\n", fname);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	426 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	427 }
708 61faa298af07 Small horizontal interrupt fixes Michael Pavone <pavone@retrodev.com> parents: 668 diff changeset	428 if (memcmp(ident, "GST\x40\xE0", 3) != 0) {
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	429 fprintf(stderr, "%s doesn't appear to be a GST savestate. The ident code is %c%c%c\\x%X\\x%X instead of GST\\x40\\xE0.\n", fname, ident[0], ident[1], ident[2], ident[3], ident[4]);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	430 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	431 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	432 uint32_t pc = m68k_load_gst(gen->m68k, gstfile);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	433 if (!pc) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	434 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	435 }
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	436
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	437 if (!vdp_load_gst(gen->vdp, gstfile)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	438 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	439 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	440 if (!ym_load_gst(gen->ym, gstfile)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	441 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	442 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	443 if (!z80_load_gst(gen->z80, gstfile)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	444 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	445 }
1111 2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program Michael Pavone <pavone@retrodev.com> parents: 1103 diff changeset	446 gen->io.ports[0].control = 0x40;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program Michael Pavone <pavone@retrodev.com> parents: 1103 diff changeset	447 gen->io.ports[1].control = 0x40;
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	448
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	449 fseek(gstfile, GST_68K_RAM, SEEK_SET);
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	450 for (int i = 0; i < (32*1024);) {
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	451 if (fread(buffer, 1, sizeof(buffer), gstfile) != sizeof(buffer)) {
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	452 fputs("Failed to read 68K RAM from savestate\n", stderr);
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	453 return 0;
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	454 }
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	455 for(char *curpos = buffer; curpos < (buffer + sizeof(buffer)); curpos += sizeof(uint16_t)) {
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	456 uint16_t word = read_be_16(curpos);
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	457 if (word != gen->work_ram[i]) {
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	458 gen->work_ram[i] = word;
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	459 m68k_handle_code_write(0xFF0000 \| (i << 1), gen->m68k);
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	460 }
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	461 i++;
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	462 }
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	463 }
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	464 fclose(gstfile);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	465 return pc;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	466
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	467 error_close:
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	468 fclose(gstfile);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	469 error:
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	470 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	471 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	472
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	473 uint8_t save_gst(genesis_context * gen, char *fname, uint32_t m68k_pc)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	474 {
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	475 char buffer[4096];
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	476 FILE * gstfile = fopen(fname, "wb");
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	477 if (!gstfile) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	478 fprintf(stderr, "Could not open %s for writing\n", fname);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	479 goto error;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	480 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	481 if (fwrite("GST\x40\xE0", 1, 5, gstfile) != 5) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	482 fputs("Error writing signature to savestate\n", stderr);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	483 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	484 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	485 if (!m68k_save_gst(gen->m68k, m68k_pc, gstfile)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	486 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	487 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	488 if (!z80_save_gst(gen->z80, gstfile)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	489 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	490 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	491 if (!vdp_save_gst(gen->vdp, gstfile)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	492 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	493 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	494 if (!ym_save_gst(gen->ym, gstfile)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	495 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	496 }
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	497 fseek(gstfile, GST_68K_RAM, SEEK_SET);
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	498 for (int i = 0; i < (32*1024);) {
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	499 for(char *curpos = buffer; curpos < (buffer + sizeof(buffer)); curpos += sizeof(uint16_t)) {
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	500 write_be_16(curpos, gen->work_ram[i++]);
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	501 }
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	502 if (fwrite(buffer, 1, sizeof(buffer), gstfile) != sizeof(buffer)) {
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	503 fputs("Failed to write 68K RAM to savestate\n", stderr);
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	504 return 0;
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	505 }
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	506 }
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	507 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	508
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	509 error_close:
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	510 fclose(gstfile);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	511 error:
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	512 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	513 }

Mercurial > repos > blastem

annotate gst.c @ 1925:039553703c20