repos/blastem: gst.c annotate

annotate gst.c @ 651:103d5cabbe14

Fix flags for rra, rrca, rla and rlca. Fix timing for rr, rrc, rl and rlc when using IX or IY. Fix access to I and R registers (R still needs to be made 7-bit though). Fix flags for ld a, i. The fix for access to I fixes PCM playback in Titan Overdrive and music playback in Crackdown.

author	Michael Pavone <pavone@retrodev.com>
date	Tue, 16 Dec 2014 01:10:54 -0800
parents	140af5509ce7
children	5439ae7946ca

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
140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING Mike Pavone <pavone@retrodev.com> parents: 451 diff changeset	3 This file is part of BlastEm.
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 */
451 b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	6 #include "gst.h"
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	7 #include <string.h>
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	8
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	9 #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	10 #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	11 #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	12 #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	13 #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	14 #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	15 #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	16 #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	17 #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	18 #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	19 #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	20 #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	21 #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	22 #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	23
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	24 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	25 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	26 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	27 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	28
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	29 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	30 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	31 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	32 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	33
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	34 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	35 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	36 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	37 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	38
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	39 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	40 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	41 dst[0] = val;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	42 dst[1] = val >> 8;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	43 dst[2] = val >> 16;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	44 dst[3] = val >> 24;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	45 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	46
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	47 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	48 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	49 dst[0] = val;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	50 dst[1] = val >> 8;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	51 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	52
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	53 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	54 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	55 dst[0] = val >> 24;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	56 dst[1] = val >> 16;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	57 dst[2] = val >> 8;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	58 dst[3] = val;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	59 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	60
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	61 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	62 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	63 dst[0] = val >> 8;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	64 dst[1] = val;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	65 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	66
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	67 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	68 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	69 uint8_t buffer[4096];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	70 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	71 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	72 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	73 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	74 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	75 uint8_t * curpos = buffer;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	76 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	77 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	78 curpos += sizeof(uint32_t);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	79 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	80 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	81 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	82 curpos += sizeof(uint32_t);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	83 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	84 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	85 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	86 context->status = sr >> 8;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	87 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	88 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	89 sr >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	90 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	91 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	92 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	93 } else {
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_SSP_OFFSET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	95 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	96 fseek(gstfile, GST_68K_RAM, SEEK_SET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	97 for (int i = 0; i < (32*1024);) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	98 if (fread(buffer, 1, sizeof(buffer), gstfile) != sizeof(buffer)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	99 fputs("Failed to read 68K 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	100 return 0;
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 for(curpos = buffer; curpos < (buffer + sizeof(buffer)); curpos += sizeof(uint16_t)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	103 context->mem_pointers[1][i++] = read_be_16(curpos);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	104 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	105 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	106 return pc;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	107 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	108
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	109 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	110 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	111 uint8_t buffer[4096];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	112 uint8_t * curpos = buffer;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	113 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	114 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	115 curpos += sizeof(uint32_t);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	116 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	117 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	118 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	119 curpos += sizeof(uint32_t);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	120 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	121 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	122 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	123 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	124 sr <<= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	125 sr \|= context->flags[flag];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	126 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	127 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	128 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	129 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	130 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	131 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	132 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	133 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	134 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	135 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	136 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	137 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	138 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	139 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	140
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	141 fseek(gstfile, GST_68K_RAM, SEEK_SET);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	142 for (int i = 0; i < (32*1024);) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	143 for(curpos = buffer; curpos < (buffer + sizeof(buffer)); curpos += sizeof(uint16_t)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	144 write_be_16(curpos, context->mem_pointers[1][i++]);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	145 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	146 if (fwrite(buffer, 1, sizeof(buffer), gstfile) != sizeof(buffer)) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	147 fputs("Failed to write 68K 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	148 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	149 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	150 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	151 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	152 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	153
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	154 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	155 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	156 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	157 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	158 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	159 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	160 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	161 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	162 uint8_t * curpos = regdata;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	163 uint8_t f = *(curpos++);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	164 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	165 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	166 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	167 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	168 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	169 f >>= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	170 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	171 f >>= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	172 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	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->flags[ZF_S] = f;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	175
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	176 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	177 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	178 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	179 context->regs[reg++] = *(curpos++);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	180 context->regs[reg] = *curpos;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	181 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	182 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	183 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	184 curpos += 4;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	185 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	186 curpos += 4;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	187 f = *(curpos++);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	188 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	189 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	190 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	191 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	192 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	193 f >>= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	194 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	195 f >>= 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	196 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	197 f >>= 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	198 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	199 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	200 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	201 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	202 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	203 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	204 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	205 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	206 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	207 curpos += 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	208 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	209 curpos += 2;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	210 reset = !*(curpos++);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	211 busreq = *curpos;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	212 curpos += 3;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	213 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	214 if (bank < 0x400000) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	215 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	216 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	217 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	218 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	219 context->bank_reg = bank >> 15;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	220 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	221 if(fread(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	222 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	223 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	224 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	225 return 1;
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
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	228 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	229 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	230 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	231 fseek(state_file, 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	232 if (fread(context->regs, 1, VDP_REGS, state_file) != VDP_REGS) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	233 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	234 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	235 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	236 context->double_res = (context->regs[REG_MODE_4] & (BIT_INTERLACE \| BIT_DOUBLE_RES)) == (BIT_INTERLACE \| BIT_DOUBLE_RES);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	237 if (!context->double_res) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	238 context->framebuf = context->oddbuf;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	239 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	240 latch_mode(context);
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, 1, sizeof(tmp_buf), state_file) != sizeof(tmp_buf)) {
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 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	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 < CRAM_SIZE; i++) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	246 uint16_t value;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	247 context->cram[i] = value = (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	248 context->colors[i] = color_map[value & 0xEEE];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	249 context->colors[i + CRAM_SIZE] = color_map[(value & 0xEEE) \| FBUF_SHADOW];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	250 context->colors[i + CRAM_SIZE*2] = color_map[(value & 0xEEE) \| FBUF_HILIGHT];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	251 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	252 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	253 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	254 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	255 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	256 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	257 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	258 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	259 fseek(state_file, 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	260 if (fread(context->vdpmem, 1, VRAM_SIZE, state_file) != VRAM_SIZE) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	261 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	262 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	263 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	264 return 1;
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
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	267 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	268 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	269 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	270 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	271 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	272 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	273 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	274 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	275 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	276 {
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] = context->cram[i];
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+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	279 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	280 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	281 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	282 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	283 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	284 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	285 {
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] = context->vsram[i];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	287 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	288 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	289 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	290 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	291 return 0;
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 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	294 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	295 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	296 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	297 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	298 return 1;
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
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	301 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	302 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	303 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	304 uint8_t * curpos = regdata;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	305 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	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;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	353 *(curpos++) = !reset;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	354 *curpos = busreq;
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);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	358 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	359 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	360 return 0;
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 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	363 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	364 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	365 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	366 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	367 return 1;
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
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	370 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	371 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	372 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	373 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	374 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	375 return 0;
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 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	378 if (i & 0x100) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	379 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	380 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	381 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	382 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	383 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	384 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	385 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	386 }
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 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	389 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	390 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	391 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	392 if (i & 0x100) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	393 int reg = (i & 0xFF);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	394 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	395 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	396 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	397 regdata[i] = 0xFF;
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 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	400 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	401 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	402 } else {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	403 regdata[i] = 0xFF;
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 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	407 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	408 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	409 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	410 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	411 return 1;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	412 }
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 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	415 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	416 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	417 if (!gstfile) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	418 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	419 goto error;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	420 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	421 char ident[5];
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	422 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	423 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	424 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	425 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	426 if (memcmp(ident, "GST\x40\xE0", 5) != 0) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	427 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	428 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	429 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	430 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	431 if (!pc) {
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 (!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	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 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	437 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	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 (!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	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 gen->ports[0].control = 0x40;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	444 gen->ports[1].control = 0x40;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	445 fclose(gstfile);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	446 return pc;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	447
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	448 error_close:
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	449 fclose(gstfile);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	450 error:
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	451 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	452 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	453
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	454 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	455 {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	456 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	457 if (!gstfile) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	458 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	459 goto error;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	460 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	461 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	462 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	463 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	464 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	465 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	466 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	467 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	468 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	469 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	470 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	471 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	472 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	473 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	474 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	475 goto error_close;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	476 }
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	477 return 1;
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 error_close:
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	480 fclose(gstfile);
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	481 error:
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	482 return 0;
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness Mike Pavone <pavone@retrodev.com> parents: diff changeset	483 }

Mercurial > repos > blastem

annotate gst.c @ 651:103d5cabbe14