1 // This is part of Pico Library
3 // (c) Copyright 2007 notaz, All rights reserved.
4 // Free for non-commercial use.
6 // For commercial use, separate licencing terms must be obtained.
9 #include "../PicoInt.h"
12 #include "../sound/ym2612.h"
15 extern int *sn76496_regs;
17 void (*PicoStateProgressCB)(const char *str) = 0;
48 static char *chunk_names[] = {
49 "Saving.. M68K state",
61 "Saving.. S68K state",
64 "Saving.. PCM_RAM", // 15
66 "Saving.. GATE ARRAY regs",
76 static int write_chunk(chunk_name_e name, int len, void *data, void *file)
79 bwritten += areaWrite(&name, 1, 1, file);
80 bwritten += areaWrite(&len, 1, 4, file);
81 bwritten += areaWrite(data, 1, len, file);
83 return (bwritten == len + 4 + 1);
87 #define CHECKED_WRITE(name,len,data) \
88 if (PicoStateProgressCB) PicoStateProgressCB(chunk_names[name]); \
89 if (!write_chunk(name, len, data, file)) return 1;
91 #define CHECKED_WRITE_BUFF(name,buff) \
92 if (PicoStateProgressCB) PicoStateProgressCB(chunk_names[name]); \
93 if (!write_chunk(name, sizeof(buff), &buff, file)) return 1;
95 int PicoCdSaveState(void *file)
97 unsigned char buff[0x60];
98 void *ym2612_regs = YM2612GetRegs();
100 areaWrite("PicoSMCD", 1, 8, file);
101 areaWrite(&PicoVer, 1, 4, file);
103 memset(buff, 0, sizeof(buff));
104 PicoAreaPackCpu(buff, 0);
105 CHECKED_WRITE_BUFF(CHUNK_M68K, buff);
106 CHECKED_WRITE_BUFF(CHUNK_RAM, Pico.ram);
107 CHECKED_WRITE_BUFF(CHUNK_VRAM, Pico.vram);
108 CHECKED_WRITE_BUFF(CHUNK_ZRAM, Pico.zram);
109 CHECKED_WRITE_BUFF(CHUNK_CRAM, Pico.cram);
110 CHECKED_WRITE_BUFF(CHUNK_VSRAM, Pico.vsram);
111 CHECKED_WRITE_BUFF(CHUNK_MISC, Pico.m);
112 CHECKED_WRITE_BUFF(CHUNK_VIDEO, Pico.video);
114 memset(buff, 0, sizeof(buff));
116 CHECKED_WRITE_BUFF(CHUNK_Z80, buff);
119 CHECKED_WRITE(CHUNK_PSG, 28*4, sn76496_regs);
121 CHECKED_WRITE(CHUNK_FM, 0x200+4, ym2612_regs);
125 Pico_mcd->m.audio_offset = mp3_get_offset();
126 memset(buff, 0, sizeof(buff));
127 PicoAreaPackCpu(buff, 1);
129 CHECKED_WRITE_BUFF(CHUNK_S68K, buff);
130 CHECKED_WRITE_BUFF(CHUNK_PRG_RAM, Pico_mcd->prg_ram);
131 CHECKED_WRITE_BUFF(CHUNK_WORD_RAM, Pico_mcd->word_ram); // in 2M format
132 CHECKED_WRITE_BUFF(CHUNK_PCM_RAM, Pico_mcd->pcm_ram);
133 CHECKED_WRITE_BUFF(CHUNK_BRAM, Pico_mcd->bram);
134 CHECKED_WRITE_BUFF(CHUNK_GA_REGS, Pico_mcd->s68k_regs); // GA regs, not CPU regs
135 CHECKED_WRITE_BUFF(CHUNK_PCM, Pico_mcd->pcm);
136 CHECKED_WRITE_BUFF(CHUNK_CDD, Pico_mcd->cdd);
137 CHECKED_WRITE_BUFF(CHUNK_CDC, Pico_mcd->cdc);
138 CHECKED_WRITE_BUFF(CHUNK_SCD, Pico_mcd->scd);
139 CHECKED_WRITE_BUFF(CHUNK_RC, Pico_mcd->rot_comp);
140 CHECKED_WRITE_BUFF(CHUNK_MISC_CD, Pico_mcd->m);
146 static int g_read_offs = 0;
148 #define R_ERROR_RETURN(error) \
150 printf("PicoCdLoadState @ %x: " error "\n", g_read_offs); \
154 // when is eof really set?
155 #define CHECKED_READ(len,data) \
156 if (areaRead(data, 1, len, file) != len) { \
157 if (len == 1 && areaEof(file)) return 0; \
158 R_ERROR_RETURN("areaRead: premature EOF\n"); \
163 #define CHECKED_READ2(len2,data) \
164 if (len2 != len) R_ERROR_RETURN("unexpected len, wanted " #len2); \
165 CHECKED_READ(len2, data)
167 #define CHECKED_READ_BUFF(buff) CHECKED_READ2(sizeof(buff), &buff);
169 int PicoCdLoadState(void *file)
171 unsigned char buff[0x60];
173 void *ym2612_regs = YM2612GetRegs();
176 CHECKED_READ(8, buff);
177 if (strncmp((char *)buff, "PicoSMCD", 8)) R_ERROR_RETURN("bad header");
178 CHECKED_READ(4, &ver);
180 while (!areaEof(file))
182 CHECKED_READ(1, buff);
183 CHECKED_READ(4, &len);
184 if (len < 0 || len > 1024*512) R_ERROR_RETURN("bad length");
185 if (buff[0] > CHUNK_FM && !(PicoMCD & 1)) R_ERROR_RETURN("cd chunk in non CD state?");
190 CHECKED_READ_BUFF(buff);
191 PicoAreaUnpackCpu(buff, 0);
195 CHECKED_READ_BUFF(buff);
199 case CHUNK_RAM: CHECKED_READ_BUFF(Pico.ram); break;
200 case CHUNK_VRAM: CHECKED_READ_BUFF(Pico.vram); break;
201 case CHUNK_ZRAM: CHECKED_READ_BUFF(Pico.zram); break;
202 case CHUNK_CRAM: CHECKED_READ_BUFF(Pico.cram); break;
203 case CHUNK_VSRAM: CHECKED_READ_BUFF(Pico.vsram); break;
204 case CHUNK_MISC: CHECKED_READ_BUFF(Pico.m); break;
205 case CHUNK_VIDEO: CHECKED_READ_BUFF(Pico.video); break;
206 case CHUNK_PSG: CHECKED_READ2(28*4, sn76496_regs); break;
208 CHECKED_READ2(0x200+4, ym2612_regs);
209 YM2612PicoStateLoad();
214 CHECKED_READ_BUFF(buff);
215 PicoAreaUnpackCpu(buff, 1);
218 case CHUNK_PRG_RAM: CHECKED_READ_BUFF(Pico_mcd->prg_ram); break;
219 case CHUNK_WORD_RAM: CHECKED_READ_BUFF(Pico_mcd->word_ram); break;
220 case CHUNK_PCM_RAM: CHECKED_READ_BUFF(Pico_mcd->pcm_ram); break;
221 case CHUNK_BRAM: CHECKED_READ_BUFF(Pico_mcd->bram); break;
222 case CHUNK_GA_REGS: CHECKED_READ_BUFF(Pico_mcd->s68k_regs); break;
223 case CHUNK_PCM: CHECKED_READ_BUFF(Pico_mcd->pcm); break;
224 case CHUNK_CDD: CHECKED_READ_BUFF(Pico_mcd->cdd); break;
225 case CHUNK_CDC: CHECKED_READ_BUFF(Pico_mcd->cdc); break;
226 case CHUNK_SCD: CHECKED_READ_BUFF(Pico_mcd->scd); break;
227 case CHUNK_RC: CHECKED_READ_BUFF(Pico_mcd->rot_comp); break;
230 CHECKED_READ_BUFF(Pico_mcd->m);
231 mp3_start_play(Pico_mcd->TOC.Tracks[Pico_mcd->m.audio_track].F, Pico_mcd->m.audio_offset);
235 printf("skipping unknown chunk %i of size %i\n", buff[0], len);
236 areaSeek(file, len, SEEK_CUR);