cff531af |
1 | /*\r |
2 | * PicoDrive\r |
3 | * (C) notaz, 2010\r |
4 | *\r |
5 | * This work is licensed under the terms of MAME license.\r |
6 | * See COPYING file in the top-level directory.\r |
7 | */\r |
b4db550e |
8 | \r |
9 | #include "pico_int.h"\r |
10 | #include <zlib/zlib.h>\r |
11 | \r |
12 | #include "../cpu/sh2/sh2.h"\r |
13 | #include "sound/ym2612.h"\r |
86b38dc4 |
14 | #include "state.h"\r |
b4db550e |
15 | \r |
16 | // sn76496\r |
17 | extern int *sn76496_regs;\r |
18 | \r |
b4db550e |
19 | static arearw *areaRead;\r |
20 | static arearw *areaWrite;\r |
21 | static areaeof *areaEof;\r |
22 | static areaseek *areaSeek;\r |
23 | static areaclose *areaClose;\r |
24 | \r |
25 | carthw_state_chunk *carthw_chunks;\r |
26 | void (*PicoStateProgressCB)(const char *str);\r |
27 | void (*PicoLoadStateHook)(void);\r |
28 | \r |
29 | \r |
30 | /* I/O functions */\r |
31 | static size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r |
32 | {\r |
33 | return gzread(file, p, _size * _n);\r |
34 | }\r |
35 | \r |
36 | static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r |
37 | {\r |
38 | return gzwrite(file, p, _size * _n);\r |
39 | }\r |
40 | \r |
41 | static void set_cbs(int gz)\r |
42 | {\r |
43 | if (gz) {\r |
44 | areaRead = gzRead2;\r |
45 | areaWrite = gzWrite2;\r |
46 | areaEof = (areaeof *) gzeof;\r |
47 | areaSeek = (areaseek *) gzseek;\r |
48 | areaClose = (areaclose *) gzclose;\r |
49 | } else {\r |
50 | areaRead = (arearw *) fread;\r |
51 | areaWrite = (arearw *) fwrite;\r |
52 | areaEof = (areaeof *) feof;\r |
53 | areaSeek = (areaseek *) fseek;\r |
54 | areaClose = (areaclose *) fclose;\r |
55 | }\r |
56 | }\r |
57 | \r |
58 | static void *open_save_file(const char *fname, int is_save)\r |
59 | {\r |
60 | int len = strlen(fname);\r |
61 | void *afile = NULL;\r |
62 | \r |
63 | if (len > 3 && strcmp(fname + len - 3, ".gz") == 0)\r |
64 | {\r |
65 | if ( (afile = gzopen(fname, is_save ? "wb" : "rb")) ) {\r |
66 | set_cbs(1);\r |
67 | if (is_save)\r |
68 | gzsetparams(afile, 9, Z_DEFAULT_STRATEGY);\r |
69 | }\r |
70 | }\r |
71 | else\r |
72 | {\r |
73 | if ( (afile = fopen(fname, is_save ? "wb" : "rb")) ) {\r |
74 | set_cbs(0);\r |
75 | }\r |
76 | }\r |
77 | \r |
78 | return afile;\r |
79 | }\r |
80 | \r |
81 | // legacy savestate loading\r |
82 | #define SCANP(f, x) areaRead(&Pico.x, sizeof(Pico.x), 1, f)\r |
83 | \r |
84 | static int state_load_legacy(void *file)\r |
85 | {\r |
86 | unsigned char head[32];\r |
87 | unsigned char cpu[0x60];\r |
88 | unsigned char cpu_z80[Z80_STATE_SIZE];\r |
89 | void *ym2612_regs;\r |
90 | int ok;\r |
91 | \r |
92 | memset(&cpu,0,sizeof(cpu));\r |
93 | memset(&cpu_z80,0,sizeof(cpu_z80));\r |
94 | \r |
95 | memset(head, 0, sizeof(head));\r |
96 | areaRead(head, sizeof(head), 1, file);\r |
97 | if (strcmp((char *)head, "Pico") != 0)\r |
98 | return -1;\r |
99 | \r |
100 | elprintf(EL_STATUS, "legacy savestate");\r |
101 | \r |
102 | // Scan all the memory areas:\r |
103 | SCANP(file, ram);\r |
104 | SCANP(file, vram);\r |
105 | SCANP(file, zram);\r |
106 | SCANP(file, cram);\r |
107 | SCANP(file, vsram);\r |
108 | \r |
109 | // Pack, scan and unpack the cpu data:\r |
110 | areaRead(cpu, sizeof(cpu), 1, file);\r |
111 | SekUnpackCpu(cpu, 0);\r |
112 | \r |
113 | SCANP(file, m);\r |
114 | SCANP(file, video);\r |
115 | \r |
116 | ok = areaRead(cpu_z80, sizeof(cpu_z80), 1, file) == sizeof(cpu_z80);\r |
117 | // do not unpack if we fail to load z80 state\r |
118 | if (!ok) z80_reset();\r |
119 | else z80_unpack(cpu_z80);\r |
120 | \r |
121 | ym2612_regs = YM2612GetRegs();\r |
122 | areaRead(sn76496_regs, 28*4, 1, file);\r |
123 | areaRead(ym2612_regs, 0x200+4, 1, file);\r |
124 | ym2612_unpack_state();\r |
125 | \r |
126 | return 0;\r |
127 | }\r |
128 | \r |
129 | // ---------------------------------------------------------------------------\r |
130 | \r |
131 | typedef enum {\r |
132 | CHUNK_M68K = 1,\r |
133 | CHUNK_RAM,\r |
134 | CHUNK_VRAM,\r |
135 | CHUNK_ZRAM,\r |
136 | CHUNK_CRAM, // 5\r |
137 | CHUNK_VSRAM,\r |
138 | CHUNK_MISC,\r |
139 | CHUNK_VIDEO,\r |
140 | CHUNK_Z80,\r |
141 | CHUNK_PSG, // 10\r |
142 | CHUNK_FM,\r |
143 | // CD stuff\r |
144 | CHUNK_S68K,\r |
145 | CHUNK_PRG_RAM,\r |
146 | CHUNK_WORD_RAM,\r |
147 | CHUNK_PCM_RAM, // 15\r |
148 | CHUNK_BRAM,\r |
149 | CHUNK_GA_REGS,\r |
150 | CHUNK_PCM,\r |
151 | CHUNK_CDC,\r |
152 | CHUNK_CDD, // 20\r |
153 | CHUNK_SCD,\r |
154 | CHUNK_RC,\r |
155 | CHUNK_MISC_CD,\r |
156 | //\r |
157 | CHUNK_IOPORTS, // versions < 1.70 did not save that..\r |
158 | CHUNK_SMS, // 25\r |
159 | // 32x\r |
160 | CHUNK_MSH2,\r |
161 | CHUNK_MSH2_DATA,\r |
162 | CHUNK_MSH2_PERI,\r |
163 | CHUNK_SSH2,\r |
164 | CHUNK_SSH2_DATA, // 30\r |
165 | CHUNK_SSH2_PERI,\r |
166 | CHUNK_32XSYS,\r |
167 | CHUNK_M68K_BIOS,\r |
168 | CHUNK_MSH2_BIOS,\r |
169 | CHUNK_SSH2_BIOS, // 35\r |
170 | CHUNK_SDRAM,\r |
171 | CHUNK_DRAM,\r |
172 | CHUNK_32XPAL,\r |
6a98f03e |
173 | CHUNK_32X_EVT,\r |
27e26273 |
174 | CHUNK_32X_FIRST = CHUNK_MSH2,\r |
175 | CHUNK_32X_LAST = CHUNK_32X_EVT,\r |
ae214f1c |
176 | // add new stuff here\r |
177 | CHUNK_CD_EVT = 50,\r |
b4db550e |
178 | //\r |
179 | CHUNK_DEFAULT_COUNT,\r |
ae214f1c |
180 | CHUNK_CARTHW_ = CHUNK_CARTHW, // 64 (defined in PicoInt)\r |
b4db550e |
181 | } chunk_name_e;\r |
182 | \r |
cfae1ae1 |
183 | static const char * const chunk_names[CHUNK_DEFAULT_COUNT] = {\r |
b4db550e |
184 | "INVALID!",\r |
185 | "M68K state",\r |
186 | "RAM",\r |
187 | "VRAM",\r |
188 | "ZRAM",\r |
189 | "CRAM", // 5\r |
190 | "VSRAM",\r |
191 | "emu state",\r |
192 | "VIDEO",\r |
193 | "Z80 state",\r |
194 | "PSG", // 10\r |
195 | "FM",\r |
196 | // CD stuff\r |
197 | "S68K state",\r |
198 | "PRG_RAM",\r |
199 | "WORD_RAM",\r |
200 | "PCM_RAM", // 15\r |
201 | "BRAM",\r |
202 | "GATE ARRAY regs",\r |
203 | "PCM state",\r |
204 | "CDC",\r |
205 | "CDD", // 20\r |
206 | "SCD",\r |
207 | "GFX chip",\r |
208 | "MCD state",\r |
209 | //\r |
210 | "IO",\r |
211 | "SMS state", // 25\r |
212 | // 32x\r |
213 | "MSH2",\r |
214 | "MSH2 data",\r |
215 | "MSH2 peri",\r |
216 | "SSH2",\r |
217 | "SSH2 data", // 30\r |
218 | "SSH2 peri",\r |
219 | "32X system regs",\r |
220 | "M68K BIOS",\r |
221 | "MSH2 BIOS",\r |
222 | "SSH2 BIOS", // 35\r |
223 | "SDRAM",\r |
224 | "DRAM",\r |
225 | "PAL",\r |
6a98f03e |
226 | "events",\r |
b4db550e |
227 | };\r |
228 | \r |
229 | static int write_chunk(chunk_name_e name, int len, void *data, void *file)\r |
230 | {\r |
231 | size_t bwritten = 0;\r |
232 | bwritten += areaWrite(&name, 1, 1, file);\r |
233 | bwritten += areaWrite(&len, 1, 4, file);\r |
234 | bwritten += areaWrite(data, 1, len, file);\r |
235 | \r |
236 | return (bwritten == len + 4 + 1);\r |
237 | }\r |
238 | \r |
239 | #define CHECKED_WRITE(name,len,data) { \\r |
cfae1ae1 |
240 | if (PicoStateProgressCB && name < CHUNK_DEFAULT_COUNT && chunk_names[name]) { \\r |
b4db550e |
241 | strncpy(sbuff + 9, chunk_names[name], sizeof(sbuff) - 9); \\r |
242 | PicoStateProgressCB(sbuff); \\r |
243 | } \\r |
244 | if (!write_chunk(name, len, data, file)) return 1; \\r |
245 | }\r |
246 | \r |
247 | #define CHECKED_WRITE_BUFF(name,buff) { \\r |
cfae1ae1 |
248 | if (PicoStateProgressCB && name < CHUNK_DEFAULT_COUNT && chunk_names[name]) { \\r |
b4db550e |
249 | strncpy(sbuff + 9, chunk_names[name], sizeof(sbuff) - 9); \\r |
250 | PicoStateProgressCB(sbuff); \\r |
251 | } \\r |
252 | if (!write_chunk(name, sizeof(buff), &buff, file)) return 1; \\r |
253 | }\r |
254 | \r |
255 | static int state_save(void *file)\r |
256 | {\r |
257 | char sbuff[32] = "Saving.. ";\r |
258 | unsigned char buff[0x60], buff_z80[Z80_STATE_SIZE];\r |
259 | void *ym2612_regs = YM2612GetRegs();\r |
260 | int ver = 0x0170; // not really used..\r |
261 | \r |
262 | areaWrite("PicoSEXT", 1, 8, file);\r |
263 | areaWrite(&ver, 1, 4, file);\r |
264 | \r |
265 | if (!(PicoAHW & PAHW_SMS)) {\r |
266 | memset(buff, 0, sizeof(buff));\r |
267 | SekPackCpu(buff, 0);\r |
268 | CHECKED_WRITE_BUFF(CHUNK_M68K, buff);\r |
269 | CHECKED_WRITE_BUFF(CHUNK_RAM, Pico.ram);\r |
270 | CHECKED_WRITE_BUFF(CHUNK_VSRAM, Pico.vsram);\r |
271 | CHECKED_WRITE_BUFF(CHUNK_IOPORTS, Pico.ioports);\r |
272 | ym2612_pack_state();\r |
273 | CHECKED_WRITE(CHUNK_FM, 0x200+4, ym2612_regs);\r |
274 | }\r |
275 | else {\r |
276 | CHECKED_WRITE_BUFF(CHUNK_SMS, Pico.ms);\r |
277 | }\r |
278 | \r |
279 | CHECKED_WRITE_BUFF(CHUNK_VRAM, Pico.vram);\r |
280 | CHECKED_WRITE_BUFF(CHUNK_ZRAM, Pico.zram);\r |
281 | CHECKED_WRITE_BUFF(CHUNK_CRAM, Pico.cram);\r |
282 | CHECKED_WRITE_BUFF(CHUNK_MISC, Pico.m);\r |
283 | CHECKED_WRITE_BUFF(CHUNK_VIDEO, Pico.video);\r |
284 | \r |
285 | z80_pack(buff_z80);\r |
286 | CHECKED_WRITE_BUFF(CHUNK_Z80, buff_z80);\r |
287 | CHECKED_WRITE(CHUNK_PSG, 28*4, sn76496_regs);\r |
288 | \r |
289 | if (PicoAHW & PAHW_MCD)\r |
290 | {\r |
291 | memset(buff, 0, sizeof(buff));\r |
292 | SekPackCpu(buff, 1);\r |
293 | if (Pico_mcd->s68k_regs[3] & 4) // 1M mode?\r |
294 | wram_1M_to_2M(Pico_mcd->word_ram2M);\r |
895d1512 |
295 | memcpy(&Pico_mcd->m.hint_vector, Pico_mcd->bios + 0x72,\r |
296 | sizeof(Pico_mcd->m.hint_vector));\r |
b4db550e |
297 | \r |
298 | CHECKED_WRITE_BUFF(CHUNK_S68K, buff);\r |
299 | CHECKED_WRITE_BUFF(CHUNK_PRG_RAM, Pico_mcd->prg_ram);\r |
300 | CHECKED_WRITE_BUFF(CHUNK_WORD_RAM, Pico_mcd->word_ram2M); // in 2M format\r |
301 | CHECKED_WRITE_BUFF(CHUNK_PCM_RAM, Pico_mcd->pcm_ram);\r |
302 | CHECKED_WRITE_BUFF(CHUNK_BRAM, Pico_mcd->bram);\r |
303 | CHECKED_WRITE_BUFF(CHUNK_GA_REGS, Pico_mcd->s68k_regs); // GA regs, not CPU regs\r |
304 | CHECKED_WRITE_BUFF(CHUNK_PCM, Pico_mcd->pcm);\r |
305 | CHECKED_WRITE_BUFF(CHUNK_CDD, Pico_mcd->cdd);\r |
306 | CHECKED_WRITE_BUFF(CHUNK_CDC, Pico_mcd->cdc);\r |
307 | CHECKED_WRITE_BUFF(CHUNK_SCD, Pico_mcd->scd);\r |
308 | CHECKED_WRITE_BUFF(CHUNK_RC, Pico_mcd->rot_comp);\r |
309 | CHECKED_WRITE_BUFF(CHUNK_MISC_CD, Pico_mcd->m);\r |
ae214f1c |
310 | memset(buff, 0, 0x40);\r |
311 | memcpy(buff, pcd_event_times, sizeof(pcd_event_times));\r |
312 | CHECKED_WRITE(CHUNK_CD_EVT, 0x40, buff);\r |
b4db550e |
313 | \r |
314 | if (Pico_mcd->s68k_regs[3] & 4) // convert back\r |
315 | wram_2M_to_1M(Pico_mcd->word_ram2M);\r |
316 | }\r |
317 | \r |
f3a57b2d |
318 | #ifndef NO_32X\r |
b4db550e |
319 | if (PicoAHW & PAHW_32X)\r |
320 | {\r |
321 | unsigned char cpubuff[SH2_STATE_SIZE];\r |
322 | \r |
323 | memset(cpubuff, 0, sizeof(cpubuff));\r |
324 | \r |
325 | sh2_pack(&sh2s[0], cpubuff);\r |
326 | CHECKED_WRITE_BUFF(CHUNK_MSH2, cpubuff);\r |
f81107f5 |
327 | CHECKED_WRITE_BUFF(CHUNK_MSH2_DATA, sh2s[0].data_array);\r |
328 | CHECKED_WRITE_BUFF(CHUNK_MSH2_PERI, sh2s[0].peri_regs);\r |
b4db550e |
329 | \r |
330 | sh2_pack(&sh2s[1], cpubuff);\r |
331 | CHECKED_WRITE_BUFF(CHUNK_SSH2, cpubuff);\r |
f81107f5 |
332 | CHECKED_WRITE_BUFF(CHUNK_SSH2_DATA, sh2s[1].data_array);\r |
333 | CHECKED_WRITE_BUFF(CHUNK_SSH2_PERI, sh2s[1].peri_regs);\r |
b4db550e |
334 | \r |
335 | CHECKED_WRITE_BUFF(CHUNK_32XSYS, Pico32x);\r |
336 | CHECKED_WRITE_BUFF(CHUNK_M68K_BIOS, Pico32xMem->m68k_rom);\r |
337 | CHECKED_WRITE_BUFF(CHUNK_MSH2_BIOS, Pico32xMem->sh2_rom_m);\r |
338 | CHECKED_WRITE_BUFF(CHUNK_SSH2_BIOS, Pico32xMem->sh2_rom_s);\r |
339 | CHECKED_WRITE_BUFF(CHUNK_SDRAM, Pico32xMem->sdram);\r |
340 | CHECKED_WRITE_BUFF(CHUNK_DRAM, Pico32xMem->dram);\r |
341 | CHECKED_WRITE_BUFF(CHUNK_32XPAL, Pico32xMem->pal);\r |
ed4402a7 |
342 | \r |
6a98f03e |
343 | memset(buff, 0, 0x40);\r |
ae214f1c |
344 | memcpy(buff, p32x_event_times, sizeof(p32x_event_times));\r |
6a98f03e |
345 | CHECKED_WRITE(CHUNK_32X_EVT, 0x40, buff);\r |
b4db550e |
346 | }\r |
f3a57b2d |
347 | #endif\r |
b4db550e |
348 | \r |
349 | if (carthw_chunks != NULL)\r |
350 | {\r |
351 | carthw_state_chunk *chwc;\r |
352 | if (PicoStateProgressCB)\r |
353 | PicoStateProgressCB("Saving.. cart hw state");\r |
354 | for (chwc = carthw_chunks; chwc->ptr != NULL; chwc++)\r |
355 | CHECKED_WRITE(chwc->chunk, chwc->size, chwc->ptr);\r |
356 | }\r |
357 | \r |
358 | return 0;\r |
359 | }\r |
360 | \r |
361 | static int g_read_offs = 0;\r |
362 | \r |
363 | #define R_ERROR_RETURN(error) \\r |
364 | { \\r |
365 | elprintf(EL_STATUS, "load_state @ %x: " error, g_read_offs); \\r |
366 | return 1; \\r |
367 | }\r |
368 | \r |
369 | // when is eof really set?\r |
370 | #define CHECKED_READ(len,data) { \\r |
371 | if (areaRead(data, 1, len, file) != len) { \\r |
372 | if (len == 1 && areaEof(file)) goto readend; \\r |
373 | R_ERROR_RETURN("areaRead: premature EOF\n"); \\r |
374 | return 1; \\r |
375 | } \\r |
376 | g_read_offs += len; \\r |
377 | }\r |
378 | \r |
379 | #define CHECKED_READ2(len2,data) { \\r |
380 | if (len2 != len) { \\r |
381 | elprintf(EL_STATUS, "unexpected len %i, wanted %i (%s)", len, len2, #len2); \\r |
382 | if (len > len2) R_ERROR_RETURN("failed."); \\r |
383 | /* else read anyway and hope for the best.. */ \\r |
384 | } \\r |
385 | CHECKED_READ(len, data); \\r |
386 | }\r |
387 | \r |
388 | #define CHECKED_READ_BUFF(buff) CHECKED_READ2(sizeof(buff), &buff);\r |
389 | \r |
390 | static int state_load(void *file)\r |
391 | {\r |
392 | unsigned char buff_m68k[0x60], buff_s68k[0x60];\r |
393 | unsigned char buff_z80[Z80_STATE_SIZE];\r |
394 | unsigned char buff_sh2[SH2_STATE_SIZE];\r |
6a98f03e |
395 | unsigned char buff[0x40];\r |
b4db550e |
396 | unsigned char chunk;\r |
397 | void *ym2612_regs;\r |
398 | char header[8];\r |
399 | int ver, len;\r |
400 | \r |
03065bb6 |
401 | memset(buff_m68k, 0, sizeof(buff_m68k));\r |
402 | memset(buff_s68k, 0, sizeof(buff_s68k));\r |
403 | memset(buff_z80, 0, sizeof(buff_z80));\r |
404 | \r |
b4db550e |
405 | g_read_offs = 0;\r |
406 | CHECKED_READ(8, header);\r |
407 | if (strncmp(header, "PicoSMCD", 8) && strncmp(header, "PicoSEXT", 8))\r |
408 | R_ERROR_RETURN("bad header");\r |
409 | CHECKED_READ(4, &ver);\r |
410 | \r |
ae214f1c |
411 | memset(pcd_event_times, 0, sizeof(pcd_event_times));\r |
412 | memset(p32x_event_times, 0, sizeof(p32x_event_times));\r |
413 | \r |
b4db550e |
414 | while (!areaEof(file))\r |
415 | {\r |
416 | CHECKED_READ(1, &chunk);\r |
417 | CHECKED_READ(4, &len);\r |
418 | if (len < 0 || len > 1024*512) R_ERROR_RETURN("bad length");\r |
419 | if (CHUNK_S68K <= chunk && chunk <= CHUNK_MISC_CD && !(PicoAHW & PAHW_MCD))\r |
420 | R_ERROR_RETURN("cd chunk in non CD state?");\r |
27e26273 |
421 | if (CHUNK_32X_FIRST <= chunk && chunk <= CHUNK_32X_LAST && !(PicoAHW & PAHW_32X))\r |
422 | Pico32xStartup();\r |
b4db550e |
423 | \r |
424 | switch (chunk)\r |
425 | {\r |
426 | case CHUNK_M68K:\r |
427 | CHECKED_READ_BUFF(buff_m68k);\r |
428 | break;\r |
429 | \r |
430 | case CHUNK_Z80:\r |
431 | CHECKED_READ_BUFF(buff_z80);\r |
b4db550e |
432 | break;\r |
433 | \r |
434 | case CHUNK_RAM: CHECKED_READ_BUFF(Pico.ram); break;\r |
435 | case CHUNK_VRAM: CHECKED_READ_BUFF(Pico.vram); break;\r |
436 | case CHUNK_ZRAM: CHECKED_READ_BUFF(Pico.zram); break;\r |
437 | case CHUNK_CRAM: CHECKED_READ_BUFF(Pico.cram); break;\r |
438 | case CHUNK_VSRAM: CHECKED_READ_BUFF(Pico.vsram); break;\r |
439 | case CHUNK_MISC: CHECKED_READ_BUFF(Pico.m); break;\r |
440 | case CHUNK_VIDEO: CHECKED_READ_BUFF(Pico.video); break;\r |
441 | case CHUNK_IOPORTS: CHECKED_READ_BUFF(Pico.ioports); break;\r |
442 | case CHUNK_PSG: CHECKED_READ2(28*4, sn76496_regs); break;\r |
443 | case CHUNK_FM:\r |
444 | ym2612_regs = YM2612GetRegs();\r |
445 | CHECKED_READ2(0x200+4, ym2612_regs);\r |
446 | ym2612_unpack_state();\r |
447 | break;\r |
448 | \r |
449 | case CHUNK_SMS:\r |
450 | CHECKED_READ_BUFF(Pico.ms);\r |
451 | break;\r |
452 | \r |
453 | // cd stuff\r |
454 | case CHUNK_S68K:\r |
455 | CHECKED_READ_BUFF(buff_s68k);\r |
456 | break;\r |
457 | \r |
458 | case CHUNK_PRG_RAM: CHECKED_READ_BUFF(Pico_mcd->prg_ram); break;\r |
459 | case CHUNK_WORD_RAM: CHECKED_READ_BUFF(Pico_mcd->word_ram2M); break;\r |
460 | case CHUNK_PCM_RAM: CHECKED_READ_BUFF(Pico_mcd->pcm_ram); break;\r |
461 | case CHUNK_BRAM: CHECKED_READ_BUFF(Pico_mcd->bram); break;\r |
462 | case CHUNK_GA_REGS: CHECKED_READ_BUFF(Pico_mcd->s68k_regs); break;\r |
463 | case CHUNK_PCM: CHECKED_READ_BUFF(Pico_mcd->pcm); break;\r |
464 | case CHUNK_CDD: CHECKED_READ_BUFF(Pico_mcd->cdd); break;\r |
465 | case CHUNK_CDC: CHECKED_READ_BUFF(Pico_mcd->cdc); break;\r |
466 | case CHUNK_SCD: CHECKED_READ_BUFF(Pico_mcd->scd); break;\r |
467 | case CHUNK_RC: CHECKED_READ_BUFF(Pico_mcd->rot_comp); break;\r |
468 | case CHUNK_MISC_CD: CHECKED_READ_BUFF(Pico_mcd->m); break;\r |
469 | \r |
ae214f1c |
470 | case CHUNK_CD_EVT:\r |
471 | CHECKED_READ_BUFF(buff);\r |
472 | memcpy(pcd_event_times, buff, sizeof(pcd_event_times));\r |
473 | break;\r |
474 | \r |
b4db550e |
475 | // 32x stuff\r |
f3a57b2d |
476 | #ifndef NO_32X\r |
b4db550e |
477 | case CHUNK_MSH2:\r |
478 | CHECKED_READ_BUFF(buff_sh2);\r |
479 | sh2_unpack(&sh2s[0], buff_sh2);\r |
480 | break;\r |
481 | \r |
482 | case CHUNK_SSH2:\r |
483 | CHECKED_READ_BUFF(buff_sh2);\r |
484 | sh2_unpack(&sh2s[1], buff_sh2);\r |
485 | break;\r |
486 | \r |
f81107f5 |
487 | case CHUNK_MSH2_DATA: CHECKED_READ_BUFF(sh2s[0].data_array); break;\r |
488 | case CHUNK_MSH2_PERI: CHECKED_READ_BUFF(sh2s[0].peri_regs); break;\r |
489 | case CHUNK_SSH2_DATA: CHECKED_READ_BUFF(sh2s[1].data_array); break;\r |
490 | case CHUNK_SSH2_PERI: CHECKED_READ_BUFF(sh2s[1].peri_regs); break;\r |
b4db550e |
491 | case CHUNK_32XSYS: CHECKED_READ_BUFF(Pico32x); break;\r |
492 | case CHUNK_M68K_BIOS: CHECKED_READ_BUFF(Pico32xMem->m68k_rom); break;\r |
493 | case CHUNK_MSH2_BIOS: CHECKED_READ_BUFF(Pico32xMem->sh2_rom_m); break;\r |
494 | case CHUNK_SSH2_BIOS: CHECKED_READ_BUFF(Pico32xMem->sh2_rom_s); break;\r |
495 | case CHUNK_SDRAM: CHECKED_READ_BUFF(Pico32xMem->sdram); break;\r |
496 | case CHUNK_DRAM: CHECKED_READ_BUFF(Pico32xMem->dram); break;\r |
497 | case CHUNK_32XPAL: CHECKED_READ_BUFF(Pico32xMem->pal); break;\r |
6a98f03e |
498 | \r |
499 | case CHUNK_32X_EVT:\r |
500 | CHECKED_READ_BUFF(buff);\r |
ae214f1c |
501 | memcpy(p32x_event_times, buff, sizeof(p32x_event_times));\r |
6a98f03e |
502 | break;\r |
f3a57b2d |
503 | #endif\r |
b4db550e |
504 | default:\r |
505 | if (carthw_chunks != NULL)\r |
506 | {\r |
507 | carthw_state_chunk *chwc;\r |
508 | for (chwc = carthw_chunks; chwc->ptr != NULL; chwc++) {\r |
509 | if (chwc->chunk == chunk) {\r |
510 | CHECKED_READ2(chwc->size, chwc->ptr);\r |
511 | goto breakswitch;\r |
512 | }\r |
513 | }\r |
514 | }\r |
515 | elprintf(EL_STATUS, "load_state: skipping unknown chunk %i of size %i", chunk, len);\r |
516 | areaSeek(file, len, SEEK_CUR);\r |
517 | break;\r |
518 | }\r |
519 | breakswitch:;\r |
520 | }\r |
521 | \r |
522 | readend:\r |
523 | if (PicoAHW & PAHW_SMS)\r |
524 | PicoStateLoadedMS();\r |
525 | \r |
27e26273 |
526 | if (PicoAHW & PAHW_32X)\r |
527 | Pico32xStateLoaded(1);\r |
528 | \r |
03065bb6 |
529 | // must unpack 68k and z80 after banks are set up\r |
b4db550e |
530 | if (!(PicoAHW & PAHW_SMS))\r |
531 | SekUnpackCpu(buff_m68k, 0);\r |
27e26273 |
532 | if (PicoAHW & PAHW_MCD)\r |
533 | SekUnpackCpu(buff_s68k, 1);\r |
b4db550e |
534 | \r |
03065bb6 |
535 | z80_unpack(buff_z80);\r |
536 | \r |
27e26273 |
537 | // due to dep from 68k cycles..\r |
ae214f1c |
538 | SekCycleAim = SekCycleCnt;\r |
b4db550e |
539 | if (PicoAHW & PAHW_32X)\r |
27e26273 |
540 | Pico32xStateLoaded(0);\r |
ae214f1c |
541 | if (PicoAHW & PAHW_MCD)\r |
542 | {\r |
543 | SekCycleAimS68k = SekCycleCntS68k;\r |
544 | pcd_state_loaded();\r |
545 | \r |
546 | if (!(Pico_mcd->s68k_regs[0x36] & 1) && (Pico_mcd->scd.Status_CDC & 1))\r |
547 | cdda_start_play();\r |
548 | }\r |
b4db550e |
549 | \r |
550 | return 0;\r |
551 | }\r |
552 | \r |
553 | static int state_load_gfx(void *file)\r |
554 | {\r |
555 | int ver, len, found = 0, to_find = 4;\r |
556 | char buff[8];\r |
557 | \r |
558 | if (PicoAHW & PAHW_32X)\r |
559 | to_find += 2;\r |
560 | \r |
561 | g_read_offs = 0;\r |
562 | CHECKED_READ(8, buff);\r |
563 | if (strncmp((char *)buff, "PicoSMCD", 8) && strncmp((char *)buff, "PicoSEXT", 8))\r |
564 | R_ERROR_RETURN("bad header");\r |
565 | CHECKED_READ(4, &ver);\r |
566 | \r |
567 | while (!areaEof(file) && found < to_find)\r |
568 | {\r |
569 | CHECKED_READ(1, buff);\r |
570 | CHECKED_READ(4, &len);\r |
571 | if (len < 0 || len > 1024*512) R_ERROR_RETURN("bad length");\r |
572 | if (buff[0] > CHUNK_FM && buff[0] <= CHUNK_MISC_CD && !(PicoAHW & PAHW_MCD))\r |
573 | R_ERROR_RETURN("cd chunk in non CD state?");\r |
574 | \r |
575 | switch (buff[0])\r |
576 | {\r |
577 | case CHUNK_VRAM: CHECKED_READ_BUFF(Pico.vram); found++; break;\r |
578 | case CHUNK_CRAM: CHECKED_READ_BUFF(Pico.cram); found++; break;\r |
579 | case CHUNK_VSRAM: CHECKED_READ_BUFF(Pico.vsram); found++; break;\r |
580 | case CHUNK_VIDEO: CHECKED_READ_BUFF(Pico.video); found++; break;\r |
581 | \r |
f3a57b2d |
582 | #ifndef NO_32X\r |
b4db550e |
583 | case CHUNK_DRAM:\r |
584 | if (Pico32xMem != NULL)\r |
585 | CHECKED_READ_BUFF(Pico32xMem->dram);\r |
586 | break;\r |
587 | \r |
588 | case CHUNK_32XPAL:\r |
589 | if (Pico32xMem != NULL)\r |
590 | CHECKED_READ_BUFF(Pico32xMem->pal);\r |
591 | Pico32x.dirty_pal = 1;\r |
592 | break;\r |
593 | \r |
594 | case CHUNK_32XSYS:\r |
595 | CHECKED_READ_BUFF(Pico32x);\r |
596 | break;\r |
f3a57b2d |
597 | #endif\r |
b4db550e |
598 | default:\r |
599 | areaSeek(file, len, SEEK_CUR);\r |
600 | break;\r |
601 | }\r |
602 | }\r |
603 | \r |
604 | readend:\r |
605 | return 0;\r |
606 | }\r |
607 | \r |
86b38dc4 |
608 | static int pico_state_internal(void *afile, int is_save)\r |
b4db550e |
609 | {\r |
b4db550e |
610 | int ret;\r |
611 | \r |
b4db550e |
612 | if (is_save)\r |
613 | ret = state_save(afile);\r |
614 | else {\r |
615 | ret = state_load(afile);\r |
616 | if (ret != 0) {\r |
617 | areaSeek(afile, 0, SEEK_SET);\r |
618 | ret = state_load_legacy(afile);\r |
619 | }\r |
620 | \r |
621 | if (PicoLoadStateHook != NULL)\r |
622 | PicoLoadStateHook();\r |
623 | Pico.m.dirtyPal = 1;\r |
624 | }\r |
625 | \r |
86b38dc4 |
626 | return ret;\r |
627 | }\r |
628 | \r |
629 | int PicoState(const char *fname, int is_save)\r |
630 | {\r |
631 | void *afile = NULL;\r |
632 | int ret;\r |
633 | \r |
634 | afile = open_save_file(fname, is_save);\r |
635 | if (afile == NULL)\r |
636 | return -1;\r |
637 | \r |
638 | ret = pico_state_internal(afile, is_save);\r |
b4db550e |
639 | areaClose(afile);\r |
640 | return ret;\r |
641 | }\r |
642 | \r |
86b38dc4 |
643 | int PicoStateFP(void *afile, int is_save,\r |
644 | arearw *read, arearw *write, areaeof *eof, areaseek *seek)\r |
645 | {\r |
646 | areaRead = read;\r |
647 | areaWrite = write;\r |
648 | areaEof = eof;\r |
649 | areaSeek = seek;\r |
650 | areaClose = NULL;\r |
651 | \r |
652 | return pico_state_internal(afile, is_save);\r |
653 | }\r |
654 | \r |
b4db550e |
655 | int PicoStateLoadGfx(const char *fname)\r |
656 | {\r |
657 | void *afile;\r |
658 | int ret;\r |
659 | \r |
660 | afile = open_save_file(fname, 0);\r |
661 | if (afile == NULL)\r |
662 | return -1;\r |
663 | \r |
664 | ret = state_load_gfx(afile);\r |
665 | if (ret != 0) {\r |
666 | // assume legacy\r |
667 | areaSeek(afile, 0x10020, SEEK_SET); // skip header and RAM\r |
668 | areaRead(Pico.vram, 1, sizeof(Pico.vram), afile);\r |
669 | areaSeek(afile, 0x2000, SEEK_CUR);\r |
670 | areaRead(Pico.cram, 1, sizeof(Pico.cram), afile);\r |
671 | areaRead(Pico.vsram, 1, sizeof(Pico.vsram), afile);\r |
672 | areaSeek(afile, 0x221a0, SEEK_SET);\r |
673 | areaRead(&Pico.video, 1, sizeof(Pico.video), afile);\r |
674 | }\r |
675 | areaClose(afile);\r |
676 | return 0;\r |
677 | }\r |
678 | \r |
679 | // tmp state\r |
680 | struct PicoTmp\r |
681 | {\r |
682 | unsigned short vram[0x8000];\r |
683 | unsigned short cram[0x40];\r |
684 | unsigned short vsram[0x40];\r |
685 | \r |
686 | //struct PicoMisc m;\r |
687 | struct PicoVideo video;\r |
688 | \r |
689 | struct {\r |
690 | struct Pico32x p32x;\r |
691 | unsigned short dram[2][0x20000/2];\r |
692 | unsigned short pal[0x100];\r |
693 | } t32x;\r |
694 | };\r |
695 | \r |
696 | // returns data ptr to free() or PicoTmpStateRestore()\r |
697 | void *PicoTmpStateSave(void)\r |
698 | {\r |
699 | // gfx only for now\r |
700 | struct PicoTmp *t = malloc(sizeof(*t));\r |
701 | if (t == NULL)\r |
702 | return NULL;\r |
703 | \r |
704 | memcpy(t->vram, Pico.vram, sizeof(Pico.vram));\r |
705 | memcpy(t->cram, Pico.cram, sizeof(Pico.cram));\r |
706 | memcpy(t->vsram, Pico.vsram, sizeof(Pico.vsram));\r |
707 | memcpy(&t->video, &Pico.video, sizeof(Pico.video));\r |
708 | \r |
f3a57b2d |
709 | #ifndef NO_32X\r |
b4db550e |
710 | if (PicoAHW & PAHW_32X) {\r |
711 | memcpy(&t->t32x.p32x, &Pico32x, sizeof(Pico32x));\r |
712 | memcpy(t->t32x.dram, Pico32xMem->dram, sizeof(Pico32xMem->dram));\r |
713 | memcpy(t->t32x.pal, Pico32xMem->pal, sizeof(Pico32xMem->pal));\r |
714 | }\r |
f3a57b2d |
715 | #endif\r |
b4db550e |
716 | \r |
717 | return t;\r |
718 | }\r |
719 | \r |
720 | void PicoTmpStateRestore(void *data)\r |
721 | {\r |
722 | struct PicoTmp *t = data;\r |
723 | if (t == NULL)\r |
724 | return;\r |
725 | \r |
726 | memcpy(Pico.vram, t->vram, sizeof(Pico.vram));\r |
727 | memcpy(Pico.cram, t->cram, sizeof(Pico.cram));\r |
728 | memcpy(Pico.vsram, t->vsram, sizeof(Pico.vsram));\r |
729 | memcpy(&Pico.video, &t->video, sizeof(Pico.video));\r |
730 | Pico.m.dirtyPal = 1;\r |
731 | \r |
f3a57b2d |
732 | #ifndef NO_32X\r |
b4db550e |
733 | if (PicoAHW & PAHW_32X) {\r |
734 | memcpy(&Pico32x, &t->t32x.p32x, sizeof(Pico32x));\r |
735 | memcpy(Pico32xMem->dram, t->t32x.dram, sizeof(Pico32xMem->dram));\r |
736 | memcpy(Pico32xMem->pal, t->t32x.pal, sizeof(Pico32xMem->pal));\r |
737 | Pico32x.dirty_pal = 1;\r |
738 | }\r |
f3a57b2d |
739 | #endif\r |
b4db550e |
740 | }\r |
741 | \r |
ed4402a7 |
742 | // vim:shiftwidth=2:ts=2:expandtab\r |