repos/blastem: gst.c annotate

annotate gst.c @ 1325:58bfbed6cdb5

Fairly major rework of how active/passive is handled along with how the V30 mode bit is handled. Allows the vertical border extension trick in Overdrive 2 to work right

author	Michael Pavone <pavone@retrodev.com>
date	Fri, 21 Apr 2017 01:22:52 -0700
parents	0928b68fef2a
children	69c25e1188e5

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++);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	147 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	148 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	149 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	150 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	151 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	152 f >>= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	153 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	154 f >>= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	155 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	156 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	157 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	158
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	159 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	160 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	161 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	162 context->regs[reg++] = *(curpos++);
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 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	165 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	166 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	167 curpos += 4;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	168 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	169 curpos += 4;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	170 f = *(curpos++);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	171 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	172 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	173 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	174 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	175 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	176 f >>= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	177 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	178 f >>= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	179 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	180 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	181 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	182 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	183 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	184 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	185 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	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 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	188 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	189 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	190 curpos += 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	191 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	192 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	193 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	194 context->busreq = *curpos;
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	195 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	196 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	197 if (bank < 0x400000) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	198 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	199 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	200 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	201 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	202 context->bank_reg = bank >> 15;
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	203 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	204 fseek(gstfile, GST_Z80_RAM, SEEK_SET);
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	205 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	206 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	207 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	208 }
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	209 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	210 {
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	211 if (context->mem_pointers[0][i] != buffer[i]) {
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	212 context->mem_pointers[0][i] = buffer[i];
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	213 z80_handle_code_write(i, context);
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	214 }
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	215 }
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	216 context->native_pc = NULL;
1112 7ab7c8fb34ba Fix intermittent crash in GST savestate loading Michael Pavone <pavone@retrodev.com> parents: 1111 diff changeset	217 context->extra_pc = NULL;
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	218 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	219 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	220
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	221 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	222 {
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	223 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	224 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	225 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	226 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	227 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	228 }
1181 0928b68fef2a Update gst loader to deal with VDP changes Michael Pavone <pavone@retrodev.com> parents: 1120 diff changeset	229 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	230 {
0928b68fef2a Update gst loader to deal with VDP changes Michael Pavone <pavone@retrodev.com> parents: 1120 diff changeset	231 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	232 }
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	233 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	234 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	235 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	236 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	237 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	238 uint16_t value;
1181 0928b68fef2a Update gst loader to deal with VDP changes Michael Pavone <pavone@retrodev.com> parents: 1120 diff changeset	239 write_cram(context, i2, (tmp_buf[i2+1] << 8) \| tmp_buf[i*2]);
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	240 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	241 if (fread(tmp_buf, 2, VSRAM_SIZE, state_file) != VSRAM_SIZE) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	242 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	243 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	244 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	245 for (int i = 0; i < VSRAM_SIZE; i++) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	246 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	247 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	248 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	249 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	250 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	251 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	252 }
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	253 for (int i = 0; i < VRAM_SIZE; i++) {
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	254 write_vram_byte(context, i, tmp_buf[i]);
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 }
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	256 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	257 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	258
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	259 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	260 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	261 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	262 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	263 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	264 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	265 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	266 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	267 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	268 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	269 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	270 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	271 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	272 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	273 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	274 return 0;
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 for (int i = 0; i < VSRAM_SIZE; i++)
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	277 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	278 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	279 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	280 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	281 if (fwrite(tmp_buf, 2, VSRAM_SIZE, outfile) != VSRAM_SIZE) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	282 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	283 return 0;
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 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	286 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	287 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	288 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	289 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	290 return 1;
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
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	293 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	294 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	295 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	296 uint8_t * curpos = regdata;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	297 memset(regdata, 0, sizeof(regdata));
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	298 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	299 f <<= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	300 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	301 f <<= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	302 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	303 f <<= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	304 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	305 f <<= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	306 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	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_C];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	309 *(curpos++) = f;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	310 *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	311
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	312 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	313 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	314 *(curpos++) = context->regs[reg++];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	315 *curpos = context->regs[reg];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	316 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	317 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	318 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	319 curpos += 4;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	320 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	321 curpos += 4;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	322 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	323 f <<= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	324 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	325 f <<= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	326 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	327 f <<= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	328 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	329 f <<= 1;
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_N];
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_C];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	333 *(curpos++) = f;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	334 *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	335 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	336 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	337 *(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	338 *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	339 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	340 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	341 *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	342 curpos += 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	343 *curpos = context->iff1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	344 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	345 *(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	346 *curpos = context->busreq;
451 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 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	349 write_le_32(curpos, bank);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	350 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	351 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	352 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	353 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	354 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	355 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	356 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	357 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	358 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	359 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	360 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	361
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	362 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	363 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	364 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	365 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	366 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	367 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	368 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	369 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	370 if (i & 0x100) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	371 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	372 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	373 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	374 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	375 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	376 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	377 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	378 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	379
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	380 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	381 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	382 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	383 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	384 if (i & 0x100) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	385 int reg = (i & 0xFF);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	386 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	387 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	388 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	389 regdata[i] = 0xFF;
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 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	392 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	393 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	394 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	395 regdata[i] = 0xFF;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	396 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	397 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	398 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	399 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	400 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	401 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	402 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	403 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	404 }
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 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	407 {
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	408 char buffer[4096];
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	409 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	410 if (!gstfile) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	411 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	412 goto error;
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 char ident[5];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	415 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	416 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	417 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	418 }
708 61faa298af07 Small horizontal interrupt fixes Michael Pavone <pavone@retrodev.com> parents: 668 diff changeset	419 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	420 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	421 goto error_close;
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 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	424 if (!pc) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	425 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	426 }
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	427
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	428 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	429 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	430 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	431 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	432 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	433 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	434 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	435 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	436 }
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	437 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	438 gen->io.ports[1].control = 0x40;
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	439
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	440 fseek(gstfile, GST_68K_RAM, SEEK_SET);
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	441 for (int i = 0; i < (32*1024);) {
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	442 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	443 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	444 return 0;
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	445 }
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	446 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	447 uint16_t word = read_be_16(curpos);
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	448 if (word != gen->work_ram[i]) {
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	449 gen->work_ram[i] = word;
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	450 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	451 }
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	452 i++;
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	453 }
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	454 }
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	455 fclose(gstfile);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	456 return pc;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	457
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	458 error_close:
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	459 fclose(gstfile);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	460 error:
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	461 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	462 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	463
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	464 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	465 {
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	466 char buffer[4096];
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	467 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	468 if (!gstfile) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	469 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	470 goto error;
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 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	473 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	474 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	475 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	476 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	477 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	478 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	479 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	480 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	481 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	482 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	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 (!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	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 }
962 f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	488 fseek(gstfile, GST_68K_RAM, SEEK_SET);
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	489 for (int i = 0; i < (32*1024);) {
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	490 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	491 write_be_16(curpos, gen->work_ram[i++]);
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	492 }
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	493 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	494 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	495 return 0;
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	496 }
f52cb02a1466 Fixed loading save states from menu Michael Pavone <pavone@retrodev.com> parents: 961 diff changeset	497 }
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	498 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	499
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	500 error_close:
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	501 fclose(gstfile);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	502 error:
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	503 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	504 }

Mercurial > repos > blastem

annotate gst.c @ 1325:58bfbed6cdb5