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 |
b4db550e |
176 | //\r |
177 | CHUNK_DEFAULT_COUNT,\r |
178 | CHUNK_CARTHW_ = CHUNK_CARTHW, // defined in PicoInt\r |
179 | } chunk_name_e;\r |
180 | \r |
181 | static const char * const chunk_names[] = {\r |
182 | "INVALID!",\r |
183 | "M68K state",\r |
184 | "RAM",\r |
185 | "VRAM",\r |
186 | "ZRAM",\r |
187 | "CRAM", // 5\r |
188 | "VSRAM",\r |
189 | "emu state",\r |
190 | "VIDEO",\r |
191 | "Z80 state",\r |
192 | "PSG", // 10\r |
193 | "FM",\r |
194 | // CD stuff\r |
195 | "S68K state",\r |
196 | "PRG_RAM",\r |
197 | "WORD_RAM",\r |
198 | "PCM_RAM", // 15\r |
199 | "BRAM",\r |
200 | "GATE ARRAY regs",\r |
201 | "PCM state",\r |
202 | "CDC",\r |
203 | "CDD", // 20\r |
204 | "SCD",\r |
205 | "GFX chip",\r |
206 | "MCD state",\r |
207 | //\r |
208 | "IO",\r |
209 | "SMS state", // 25\r |
210 | // 32x\r |
211 | "MSH2",\r |
212 | "MSH2 data",\r |
213 | "MSH2 peri",\r |
214 | "SSH2",\r |
215 | "SSH2 data", // 30\r |
216 | "SSH2 peri",\r |
217 | "32X system regs",\r |
218 | "M68K BIOS",\r |
219 | "MSH2 BIOS",\r |
220 | "SSH2 BIOS", // 35\r |
221 | "SDRAM",\r |
222 | "DRAM",\r |
223 | "PAL",\r |
6a98f03e |
224 | "events",\r |
b4db550e |
225 | };\r |
226 | \r |
227 | static int write_chunk(chunk_name_e name, int len, void *data, void *file)\r |
228 | {\r |
229 | size_t bwritten = 0;\r |
230 | bwritten += areaWrite(&name, 1, 1, file);\r |
231 | bwritten += areaWrite(&len, 1, 4, file);\r |
232 | bwritten += areaWrite(data, 1, len, file);\r |
233 | \r |
234 | return (bwritten == len + 4 + 1);\r |
235 | }\r |
236 | \r |
237 | #define CHECKED_WRITE(name,len,data) { \\r |
238 | if (PicoStateProgressCB && name < CHUNK_DEFAULT_COUNT) { \\r |
239 | strncpy(sbuff + 9, chunk_names[name], sizeof(sbuff) - 9); \\r |
240 | PicoStateProgressCB(sbuff); \\r |
241 | } \\r |
242 | if (!write_chunk(name, len, data, file)) return 1; \\r |
243 | }\r |
244 | \r |
245 | #define CHECKED_WRITE_BUFF(name,buff) { \\r |
246 | if (PicoStateProgressCB && name < CHUNK_DEFAULT_COUNT) { \\r |
247 | strncpy(sbuff + 9, chunk_names[name], sizeof(sbuff) - 9); \\r |
248 | PicoStateProgressCB(sbuff); \\r |
249 | } \\r |
250 | if (!write_chunk(name, sizeof(buff), &buff, file)) return 1; \\r |
251 | }\r |
252 | \r |
253 | static int state_save(void *file)\r |
254 | {\r |
255 | char sbuff[32] = "Saving.. ";\r |
256 | unsigned char buff[0x60], buff_z80[Z80_STATE_SIZE];\r |
257 | void *ym2612_regs = YM2612GetRegs();\r |
258 | int ver = 0x0170; // not really used..\r |
259 | \r |
260 | areaWrite("PicoSEXT", 1, 8, file);\r |
261 | areaWrite(&ver, 1, 4, file);\r |
262 | \r |
263 | if (!(PicoAHW & PAHW_SMS)) {\r |
264 | memset(buff, 0, sizeof(buff));\r |
265 | SekPackCpu(buff, 0);\r |
266 | CHECKED_WRITE_BUFF(CHUNK_M68K, buff);\r |
267 | CHECKED_WRITE_BUFF(CHUNK_RAM, Pico.ram);\r |
268 | CHECKED_WRITE_BUFF(CHUNK_VSRAM, Pico.vsram);\r |
269 | CHECKED_WRITE_BUFF(CHUNK_IOPORTS, Pico.ioports);\r |
270 | ym2612_pack_state();\r |
271 | CHECKED_WRITE(CHUNK_FM, 0x200+4, ym2612_regs);\r |
272 | }\r |
273 | else {\r |
274 | CHECKED_WRITE_BUFF(CHUNK_SMS, Pico.ms);\r |
275 | }\r |
276 | \r |
277 | CHECKED_WRITE_BUFF(CHUNK_VRAM, Pico.vram);\r |
278 | CHECKED_WRITE_BUFF(CHUNK_ZRAM, Pico.zram);\r |
279 | CHECKED_WRITE_BUFF(CHUNK_CRAM, Pico.cram);\r |
280 | CHECKED_WRITE_BUFF(CHUNK_MISC, Pico.m);\r |
281 | CHECKED_WRITE_BUFF(CHUNK_VIDEO, Pico.video);\r |
282 | \r |
283 | z80_pack(buff_z80);\r |
284 | CHECKED_WRITE_BUFF(CHUNK_Z80, buff_z80);\r |
285 | CHECKED_WRITE(CHUNK_PSG, 28*4, sn76496_regs);\r |
286 | \r |
287 | if (PicoAHW & PAHW_MCD)\r |
288 | {\r |
289 | memset(buff, 0, sizeof(buff));\r |
290 | SekPackCpu(buff, 1);\r |
291 | if (Pico_mcd->s68k_regs[3] & 4) // 1M mode?\r |
292 | wram_1M_to_2M(Pico_mcd->word_ram2M);\r |
895d1512 |
293 | memcpy(&Pico_mcd->m.hint_vector, Pico_mcd->bios + 0x72,\r |
294 | sizeof(Pico_mcd->m.hint_vector));\r |
b4db550e |
295 | \r |
296 | CHECKED_WRITE_BUFF(CHUNK_S68K, buff);\r |
297 | CHECKED_WRITE_BUFF(CHUNK_PRG_RAM, Pico_mcd->prg_ram);\r |
298 | CHECKED_WRITE_BUFF(CHUNK_WORD_RAM, Pico_mcd->word_ram2M); // in 2M format\r |
299 | CHECKED_WRITE_BUFF(CHUNK_PCM_RAM, Pico_mcd->pcm_ram);\r |
300 | CHECKED_WRITE_BUFF(CHUNK_BRAM, Pico_mcd->bram);\r |
301 | CHECKED_WRITE_BUFF(CHUNK_GA_REGS, Pico_mcd->s68k_regs); // GA regs, not CPU regs\r |
302 | CHECKED_WRITE_BUFF(CHUNK_PCM, Pico_mcd->pcm);\r |
303 | CHECKED_WRITE_BUFF(CHUNK_CDD, Pico_mcd->cdd);\r |
304 | CHECKED_WRITE_BUFF(CHUNK_CDC, Pico_mcd->cdc);\r |
305 | CHECKED_WRITE_BUFF(CHUNK_SCD, Pico_mcd->scd);\r |
306 | CHECKED_WRITE_BUFF(CHUNK_RC, Pico_mcd->rot_comp);\r |
307 | CHECKED_WRITE_BUFF(CHUNK_MISC_CD, Pico_mcd->m);\r |
308 | \r |
309 | if (Pico_mcd->s68k_regs[3] & 4) // convert back\r |
310 | wram_2M_to_1M(Pico_mcd->word_ram2M);\r |
311 | }\r |
312 | \r |
f3a57b2d |
313 | #ifndef NO_32X\r |
b4db550e |
314 | if (PicoAHW & PAHW_32X)\r |
315 | {\r |
316 | unsigned char cpubuff[SH2_STATE_SIZE];\r |
317 | \r |
318 | memset(cpubuff, 0, sizeof(cpubuff));\r |
319 | \r |
320 | sh2_pack(&sh2s[0], cpubuff);\r |
321 | CHECKED_WRITE_BUFF(CHUNK_MSH2, cpubuff);\r |
f81107f5 |
322 | CHECKED_WRITE_BUFF(CHUNK_MSH2_DATA, sh2s[0].data_array);\r |
323 | CHECKED_WRITE_BUFF(CHUNK_MSH2_PERI, sh2s[0].peri_regs);\r |
b4db550e |
324 | \r |
325 | sh2_pack(&sh2s[1], cpubuff);\r |
326 | CHECKED_WRITE_BUFF(CHUNK_SSH2, cpubuff);\r |
f81107f5 |
327 | CHECKED_WRITE_BUFF(CHUNK_SSH2_DATA, sh2s[1].data_array);\r |
328 | CHECKED_WRITE_BUFF(CHUNK_SSH2_PERI, sh2s[1].peri_regs);\r |
b4db550e |
329 | \r |
330 | CHECKED_WRITE_BUFF(CHUNK_32XSYS, Pico32x);\r |
331 | CHECKED_WRITE_BUFF(CHUNK_M68K_BIOS, Pico32xMem->m68k_rom);\r |
332 | CHECKED_WRITE_BUFF(CHUNK_MSH2_BIOS, Pico32xMem->sh2_rom_m);\r |
333 | CHECKED_WRITE_BUFF(CHUNK_SSH2_BIOS, Pico32xMem->sh2_rom_s);\r |
334 | CHECKED_WRITE_BUFF(CHUNK_SDRAM, Pico32xMem->sdram);\r |
335 | CHECKED_WRITE_BUFF(CHUNK_DRAM, Pico32xMem->dram);\r |
336 | CHECKED_WRITE_BUFF(CHUNK_32XPAL, Pico32xMem->pal);\r |
ed4402a7 |
337 | \r |
6a98f03e |
338 | memset(buff, 0, 0x40);\r |
339 | memcpy(buff, event_times, sizeof(event_times));\r |
340 | CHECKED_WRITE(CHUNK_32X_EVT, 0x40, buff);\r |
b4db550e |
341 | }\r |
f3a57b2d |
342 | #endif\r |
b4db550e |
343 | \r |
344 | if (carthw_chunks != NULL)\r |
345 | {\r |
346 | carthw_state_chunk *chwc;\r |
347 | if (PicoStateProgressCB)\r |
348 | PicoStateProgressCB("Saving.. cart hw state");\r |
349 | for (chwc = carthw_chunks; chwc->ptr != NULL; chwc++)\r |
350 | CHECKED_WRITE(chwc->chunk, chwc->size, chwc->ptr);\r |
351 | }\r |
352 | \r |
353 | return 0;\r |
354 | }\r |
355 | \r |
356 | static int g_read_offs = 0;\r |
357 | \r |
358 | #define R_ERROR_RETURN(error) \\r |
359 | { \\r |
360 | elprintf(EL_STATUS, "load_state @ %x: " error, g_read_offs); \\r |
361 | return 1; \\r |
362 | }\r |
363 | \r |
364 | // when is eof really set?\r |
365 | #define CHECKED_READ(len,data) { \\r |
366 | if (areaRead(data, 1, len, file) != len) { \\r |
367 | if (len == 1 && areaEof(file)) goto readend; \\r |
368 | R_ERROR_RETURN("areaRead: premature EOF\n"); \\r |
369 | return 1; \\r |
370 | } \\r |
371 | g_read_offs += len; \\r |
372 | }\r |
373 | \r |
374 | #define CHECKED_READ2(len2,data) { \\r |
375 | if (len2 != len) { \\r |
376 | elprintf(EL_STATUS, "unexpected len %i, wanted %i (%s)", len, len2, #len2); \\r |
377 | if (len > len2) R_ERROR_RETURN("failed."); \\r |
378 | /* else read anyway and hope for the best.. */ \\r |
379 | } \\r |
380 | CHECKED_READ(len, data); \\r |
381 | }\r |
382 | \r |
383 | #define CHECKED_READ_BUFF(buff) CHECKED_READ2(sizeof(buff), &buff);\r |
384 | \r |
385 | static int state_load(void *file)\r |
386 | {\r |
387 | unsigned char buff_m68k[0x60], buff_s68k[0x60];\r |
388 | unsigned char buff_z80[Z80_STATE_SIZE];\r |
389 | unsigned char buff_sh2[SH2_STATE_SIZE];\r |
6a98f03e |
390 | unsigned char buff[0x40];\r |
b4db550e |
391 | unsigned char chunk;\r |
392 | void *ym2612_regs;\r |
393 | char header[8];\r |
394 | int ver, len;\r |
395 | \r |
03065bb6 |
396 | memset(buff_m68k, 0, sizeof(buff_m68k));\r |
397 | memset(buff_s68k, 0, sizeof(buff_s68k));\r |
398 | memset(buff_z80, 0, sizeof(buff_z80));\r |
399 | \r |
b4db550e |
400 | g_read_offs = 0;\r |
401 | CHECKED_READ(8, header);\r |
402 | if (strncmp(header, "PicoSMCD", 8) && strncmp(header, "PicoSEXT", 8))\r |
403 | R_ERROR_RETURN("bad header");\r |
404 | CHECKED_READ(4, &ver);\r |
405 | \r |
406 | while (!areaEof(file))\r |
407 | {\r |
408 | CHECKED_READ(1, &chunk);\r |
409 | CHECKED_READ(4, &len);\r |
410 | if (len < 0 || len > 1024*512) R_ERROR_RETURN("bad length");\r |
411 | if (CHUNK_S68K <= chunk && chunk <= CHUNK_MISC_CD && !(PicoAHW & PAHW_MCD))\r |
412 | R_ERROR_RETURN("cd chunk in non CD state?");\r |
27e26273 |
413 | if (CHUNK_32X_FIRST <= chunk && chunk <= CHUNK_32X_LAST && !(PicoAHW & PAHW_32X))\r |
414 | Pico32xStartup();\r |
b4db550e |
415 | \r |
416 | switch (chunk)\r |
417 | {\r |
418 | case CHUNK_M68K:\r |
419 | CHECKED_READ_BUFF(buff_m68k);\r |
420 | break;\r |
421 | \r |
422 | case CHUNK_Z80:\r |
423 | CHECKED_READ_BUFF(buff_z80);\r |
b4db550e |
424 | break;\r |
425 | \r |
426 | case CHUNK_RAM: CHECKED_READ_BUFF(Pico.ram); break;\r |
427 | case CHUNK_VRAM: CHECKED_READ_BUFF(Pico.vram); break;\r |
428 | case CHUNK_ZRAM: CHECKED_READ_BUFF(Pico.zram); break;\r |
429 | case CHUNK_CRAM: CHECKED_READ_BUFF(Pico.cram); break;\r |
430 | case CHUNK_VSRAM: CHECKED_READ_BUFF(Pico.vsram); break;\r |
431 | case CHUNK_MISC: CHECKED_READ_BUFF(Pico.m); break;\r |
432 | case CHUNK_VIDEO: CHECKED_READ_BUFF(Pico.video); break;\r |
433 | case CHUNK_IOPORTS: CHECKED_READ_BUFF(Pico.ioports); break;\r |
434 | case CHUNK_PSG: CHECKED_READ2(28*4, sn76496_regs); break;\r |
435 | case CHUNK_FM:\r |
436 | ym2612_regs = YM2612GetRegs();\r |
437 | CHECKED_READ2(0x200+4, ym2612_regs);\r |
438 | ym2612_unpack_state();\r |
439 | break;\r |
440 | \r |
441 | case CHUNK_SMS:\r |
442 | CHECKED_READ_BUFF(Pico.ms);\r |
443 | break;\r |
444 | \r |
445 | // cd stuff\r |
446 | case CHUNK_S68K:\r |
447 | CHECKED_READ_BUFF(buff_s68k);\r |
448 | break;\r |
449 | \r |
450 | case CHUNK_PRG_RAM: CHECKED_READ_BUFF(Pico_mcd->prg_ram); break;\r |
451 | case CHUNK_WORD_RAM: CHECKED_READ_BUFF(Pico_mcd->word_ram2M); break;\r |
452 | case CHUNK_PCM_RAM: CHECKED_READ_BUFF(Pico_mcd->pcm_ram); break;\r |
453 | case CHUNK_BRAM: CHECKED_READ_BUFF(Pico_mcd->bram); break;\r |
454 | case CHUNK_GA_REGS: CHECKED_READ_BUFF(Pico_mcd->s68k_regs); break;\r |
455 | case CHUNK_PCM: CHECKED_READ_BUFF(Pico_mcd->pcm); break;\r |
456 | case CHUNK_CDD: CHECKED_READ_BUFF(Pico_mcd->cdd); break;\r |
457 | case CHUNK_CDC: CHECKED_READ_BUFF(Pico_mcd->cdc); break;\r |
458 | case CHUNK_SCD: CHECKED_READ_BUFF(Pico_mcd->scd); break;\r |
459 | case CHUNK_RC: CHECKED_READ_BUFF(Pico_mcd->rot_comp); break;\r |
460 | case CHUNK_MISC_CD: CHECKED_READ_BUFF(Pico_mcd->m); break;\r |
461 | \r |
462 | // 32x stuff\r |
f3a57b2d |
463 | #ifndef NO_32X\r |
b4db550e |
464 | case CHUNK_MSH2:\r |
465 | CHECKED_READ_BUFF(buff_sh2);\r |
466 | sh2_unpack(&sh2s[0], buff_sh2);\r |
467 | break;\r |
468 | \r |
469 | case CHUNK_SSH2:\r |
470 | CHECKED_READ_BUFF(buff_sh2);\r |
471 | sh2_unpack(&sh2s[1], buff_sh2);\r |
472 | break;\r |
473 | \r |
f81107f5 |
474 | case CHUNK_MSH2_DATA: CHECKED_READ_BUFF(sh2s[0].data_array); break;\r |
475 | case CHUNK_MSH2_PERI: CHECKED_READ_BUFF(sh2s[0].peri_regs); break;\r |
476 | case CHUNK_SSH2_DATA: CHECKED_READ_BUFF(sh2s[1].data_array); break;\r |
477 | case CHUNK_SSH2_PERI: CHECKED_READ_BUFF(sh2s[1].peri_regs); break;\r |
b4db550e |
478 | case CHUNK_32XSYS: CHECKED_READ_BUFF(Pico32x); break;\r |
479 | case CHUNK_M68K_BIOS: CHECKED_READ_BUFF(Pico32xMem->m68k_rom); break;\r |
480 | case CHUNK_MSH2_BIOS: CHECKED_READ_BUFF(Pico32xMem->sh2_rom_m); break;\r |
481 | case CHUNK_SSH2_BIOS: CHECKED_READ_BUFF(Pico32xMem->sh2_rom_s); break;\r |
482 | case CHUNK_SDRAM: CHECKED_READ_BUFF(Pico32xMem->sdram); break;\r |
483 | case CHUNK_DRAM: CHECKED_READ_BUFF(Pico32xMem->dram); break;\r |
484 | case CHUNK_32XPAL: CHECKED_READ_BUFF(Pico32xMem->pal); break;\r |
6a98f03e |
485 | \r |
486 | case CHUNK_32X_EVT:\r |
487 | CHECKED_READ_BUFF(buff);\r |
488 | memcpy(event_times, buff, sizeof(event_times));\r |
489 | break;\r |
f3a57b2d |
490 | #endif\r |
b4db550e |
491 | default:\r |
492 | if (carthw_chunks != NULL)\r |
493 | {\r |
494 | carthw_state_chunk *chwc;\r |
495 | for (chwc = carthw_chunks; chwc->ptr != NULL; chwc++) {\r |
496 | if (chwc->chunk == chunk) {\r |
497 | CHECKED_READ2(chwc->size, chwc->ptr);\r |
498 | goto breakswitch;\r |
499 | }\r |
500 | }\r |
501 | }\r |
502 | elprintf(EL_STATUS, "load_state: skipping unknown chunk %i of size %i", chunk, len);\r |
503 | areaSeek(file, len, SEEK_CUR);\r |
504 | break;\r |
505 | }\r |
506 | breakswitch:;\r |
507 | }\r |
508 | \r |
509 | readend:\r |
510 | if (PicoAHW & PAHW_SMS)\r |
511 | PicoStateLoadedMS();\r |
512 | \r |
513 | if (PicoAHW & PAHW_MCD)\r |
514 | {\r |
515 | PicoMemStateLoaded();\r |
516 | \r |
517 | if (!(Pico_mcd->s68k_regs[0x36] & 1) && (Pico_mcd->scd.Status_CDC & 1))\r |
518 | cdda_start_play();\r |
b4db550e |
519 | }\r |
520 | \r |
27e26273 |
521 | if (PicoAHW & PAHW_32X)\r |
522 | Pico32xStateLoaded(1);\r |
523 | \r |
03065bb6 |
524 | // must unpack 68k and z80 after banks are set up\r |
b4db550e |
525 | if (!(PicoAHW & PAHW_SMS))\r |
526 | SekUnpackCpu(buff_m68k, 0);\r |
27e26273 |
527 | if (PicoAHW & PAHW_MCD)\r |
528 | SekUnpackCpu(buff_s68k, 1);\r |
b4db550e |
529 | \r |
03065bb6 |
530 | z80_unpack(buff_z80);\r |
531 | \r |
27e26273 |
532 | // due to dep from 68k cycles..\r |
b4db550e |
533 | if (PicoAHW & PAHW_32X)\r |
27e26273 |
534 | Pico32xStateLoaded(0);\r |
b4db550e |
535 | \r |
536 | return 0;\r |
537 | }\r |
538 | \r |
539 | static int state_load_gfx(void *file)\r |
540 | {\r |
541 | int ver, len, found = 0, to_find = 4;\r |
542 | char buff[8];\r |
543 | \r |
544 | if (PicoAHW & PAHW_32X)\r |
545 | to_find += 2;\r |
546 | \r |
547 | g_read_offs = 0;\r |
548 | CHECKED_READ(8, buff);\r |
549 | if (strncmp((char *)buff, "PicoSMCD", 8) && strncmp((char *)buff, "PicoSEXT", 8))\r |
550 | R_ERROR_RETURN("bad header");\r |
551 | CHECKED_READ(4, &ver);\r |
552 | \r |
553 | while (!areaEof(file) && found < to_find)\r |
554 | {\r |
555 | CHECKED_READ(1, buff);\r |
556 | CHECKED_READ(4, &len);\r |
557 | if (len < 0 || len > 1024*512) R_ERROR_RETURN("bad length");\r |
558 | if (buff[0] > CHUNK_FM && buff[0] <= CHUNK_MISC_CD && !(PicoAHW & PAHW_MCD))\r |
559 | R_ERROR_RETURN("cd chunk in non CD state?");\r |
560 | \r |
561 | switch (buff[0])\r |
562 | {\r |
563 | case CHUNK_VRAM: CHECKED_READ_BUFF(Pico.vram); found++; break;\r |
564 | case CHUNK_CRAM: CHECKED_READ_BUFF(Pico.cram); found++; break;\r |
565 | case CHUNK_VSRAM: CHECKED_READ_BUFF(Pico.vsram); found++; break;\r |
566 | case CHUNK_VIDEO: CHECKED_READ_BUFF(Pico.video); found++; break;\r |
567 | \r |
f3a57b2d |
568 | #ifndef NO_32X\r |
b4db550e |
569 | case CHUNK_DRAM:\r |
570 | if (Pico32xMem != NULL)\r |
571 | CHECKED_READ_BUFF(Pico32xMem->dram);\r |
572 | break;\r |
573 | \r |
574 | case CHUNK_32XPAL:\r |
575 | if (Pico32xMem != NULL)\r |
576 | CHECKED_READ_BUFF(Pico32xMem->pal);\r |
577 | Pico32x.dirty_pal = 1;\r |
578 | break;\r |
579 | \r |
580 | case CHUNK_32XSYS:\r |
581 | CHECKED_READ_BUFF(Pico32x);\r |
582 | break;\r |
f3a57b2d |
583 | #endif\r |
b4db550e |
584 | default:\r |
585 | areaSeek(file, len, SEEK_CUR);\r |
586 | break;\r |
587 | }\r |
588 | }\r |
589 | \r |
590 | readend:\r |
591 | return 0;\r |
592 | }\r |
593 | \r |
86b38dc4 |
594 | static int pico_state_internal(void *afile, int is_save)\r |
b4db550e |
595 | {\r |
b4db550e |
596 | int ret;\r |
597 | \r |
b4db550e |
598 | if (is_save)\r |
599 | ret = state_save(afile);\r |
600 | else {\r |
601 | ret = state_load(afile);\r |
602 | if (ret != 0) {\r |
603 | areaSeek(afile, 0, SEEK_SET);\r |
604 | ret = state_load_legacy(afile);\r |
605 | }\r |
606 | \r |
607 | if (PicoLoadStateHook != NULL)\r |
608 | PicoLoadStateHook();\r |
609 | Pico.m.dirtyPal = 1;\r |
610 | }\r |
611 | \r |
86b38dc4 |
612 | return ret;\r |
613 | }\r |
614 | \r |
615 | int PicoState(const char *fname, int is_save)\r |
616 | {\r |
617 | void *afile = NULL;\r |
618 | int ret;\r |
619 | \r |
620 | afile = open_save_file(fname, is_save);\r |
621 | if (afile == NULL)\r |
622 | return -1;\r |
623 | \r |
624 | ret = pico_state_internal(afile, is_save);\r |
b4db550e |
625 | areaClose(afile);\r |
626 | return ret;\r |
627 | }\r |
628 | \r |
86b38dc4 |
629 | int PicoStateFP(void *afile, int is_save,\r |
630 | arearw *read, arearw *write, areaeof *eof, areaseek *seek)\r |
631 | {\r |
632 | areaRead = read;\r |
633 | areaWrite = write;\r |
634 | areaEof = eof;\r |
635 | areaSeek = seek;\r |
636 | areaClose = NULL;\r |
637 | \r |
638 | return pico_state_internal(afile, is_save);\r |
639 | }\r |
640 | \r |
b4db550e |
641 | int PicoStateLoadGfx(const char *fname)\r |
642 | {\r |
643 | void *afile;\r |
644 | int ret;\r |
645 | \r |
646 | afile = open_save_file(fname, 0);\r |
647 | if (afile == NULL)\r |
648 | return -1;\r |
649 | \r |
650 | ret = state_load_gfx(afile);\r |
651 | if (ret != 0) {\r |
652 | // assume legacy\r |
653 | areaSeek(afile, 0x10020, SEEK_SET); // skip header and RAM\r |
654 | areaRead(Pico.vram, 1, sizeof(Pico.vram), afile);\r |
655 | areaSeek(afile, 0x2000, SEEK_CUR);\r |
656 | areaRead(Pico.cram, 1, sizeof(Pico.cram), afile);\r |
657 | areaRead(Pico.vsram, 1, sizeof(Pico.vsram), afile);\r |
658 | areaSeek(afile, 0x221a0, SEEK_SET);\r |
659 | areaRead(&Pico.video, 1, sizeof(Pico.video), afile);\r |
660 | }\r |
661 | areaClose(afile);\r |
662 | return 0;\r |
663 | }\r |
664 | \r |
665 | // tmp state\r |
666 | struct PicoTmp\r |
667 | {\r |
668 | unsigned short vram[0x8000];\r |
669 | unsigned short cram[0x40];\r |
670 | unsigned short vsram[0x40];\r |
671 | \r |
672 | //struct PicoMisc m;\r |
673 | struct PicoVideo video;\r |
674 | \r |
675 | struct {\r |
676 | struct Pico32x p32x;\r |
677 | unsigned short dram[2][0x20000/2];\r |
678 | unsigned short pal[0x100];\r |
679 | } t32x;\r |
680 | };\r |
681 | \r |
682 | // returns data ptr to free() or PicoTmpStateRestore()\r |
683 | void *PicoTmpStateSave(void)\r |
684 | {\r |
685 | // gfx only for now\r |
686 | struct PicoTmp *t = malloc(sizeof(*t));\r |
687 | if (t == NULL)\r |
688 | return NULL;\r |
689 | \r |
690 | memcpy(t->vram, Pico.vram, sizeof(Pico.vram));\r |
691 | memcpy(t->cram, Pico.cram, sizeof(Pico.cram));\r |
692 | memcpy(t->vsram, Pico.vsram, sizeof(Pico.vsram));\r |
693 | memcpy(&t->video, &Pico.video, sizeof(Pico.video));\r |
694 | \r |
f3a57b2d |
695 | #ifndef NO_32X\r |
b4db550e |
696 | if (PicoAHW & PAHW_32X) {\r |
697 | memcpy(&t->t32x.p32x, &Pico32x, sizeof(Pico32x));\r |
698 | memcpy(t->t32x.dram, Pico32xMem->dram, sizeof(Pico32xMem->dram));\r |
699 | memcpy(t->t32x.pal, Pico32xMem->pal, sizeof(Pico32xMem->pal));\r |
700 | }\r |
f3a57b2d |
701 | #endif\r |
b4db550e |
702 | \r |
703 | return t;\r |
704 | }\r |
705 | \r |
706 | void PicoTmpStateRestore(void *data)\r |
707 | {\r |
708 | struct PicoTmp *t = data;\r |
709 | if (t == NULL)\r |
710 | return;\r |
711 | \r |
712 | memcpy(Pico.vram, t->vram, sizeof(Pico.vram));\r |
713 | memcpy(Pico.cram, t->cram, sizeof(Pico.cram));\r |
714 | memcpy(Pico.vsram, t->vsram, sizeof(Pico.vsram));\r |
715 | memcpy(&Pico.video, &t->video, sizeof(Pico.video));\r |
716 | Pico.m.dirtyPal = 1;\r |
717 | \r |
f3a57b2d |
718 | #ifndef NO_32X\r |
b4db550e |
719 | if (PicoAHW & PAHW_32X) {\r |
720 | memcpy(&Pico32x, &t->t32x.p32x, sizeof(Pico32x));\r |
721 | memcpy(Pico32xMem->dram, t->t32x.dram, sizeof(Pico32xMem->dram));\r |
722 | memcpy(Pico32xMem->pal, t->t32x.pal, sizeof(Pico32xMem->pal));\r |
723 | Pico32x.dirty_pal = 1;\r |
724 | }\r |
f3a57b2d |
725 | #endif\r |
b4db550e |
726 | }\r |
727 | \r |
ed4402a7 |
728 | // vim:shiftwidth=2:ts=2:expandtab\r |