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 |
3f23709e |
151 | CHUNK_CDC, // old\r |
b4db550e |
152 | CHUNK_CDD, // 20\r |
153 | CHUNK_SCD,\r |
3f23709e |
154 | CHUNK_RC, // old\r |
b4db550e |
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 |
a93a80de |
178 | CHUNK_CD_GFX,\r |
3f23709e |
179 | CHUNK_CD_CDC,\r |
b4db550e |
180 | //\r |
181 | CHUNK_DEFAULT_COUNT,\r |
ae214f1c |
182 | CHUNK_CARTHW_ = CHUNK_CARTHW, // 64 (defined in PicoInt)\r |
b4db550e |
183 | } chunk_name_e;\r |
184 | \r |
cfae1ae1 |
185 | static const char * const chunk_names[CHUNK_DEFAULT_COUNT] = {\r |
b4db550e |
186 | "INVALID!",\r |
187 | "M68K state",\r |
188 | "RAM",\r |
189 | "VRAM",\r |
190 | "ZRAM",\r |
191 | "CRAM", // 5\r |
192 | "VSRAM",\r |
193 | "emu state",\r |
194 | "VIDEO",\r |
195 | "Z80 state",\r |
196 | "PSG", // 10\r |
197 | "FM",\r |
198 | // CD stuff\r |
199 | "S68K state",\r |
200 | "PRG_RAM",\r |
201 | "WORD_RAM",\r |
202 | "PCM_RAM", // 15\r |
203 | "BRAM",\r |
204 | "GATE ARRAY regs",\r |
205 | "PCM state",\r |
206 | "CDC",\r |
207 | "CDD", // 20\r |
208 | "SCD",\r |
209 | "GFX chip",\r |
210 | "MCD state",\r |
211 | //\r |
212 | "IO",\r |
213 | "SMS state", // 25\r |
214 | // 32x\r |
215 | "MSH2",\r |
216 | "MSH2 data",\r |
217 | "MSH2 peri",\r |
218 | "SSH2",\r |
219 | "SSH2 data", // 30\r |
220 | "SSH2 peri",\r |
221 | "32X system regs",\r |
222 | "M68K BIOS",\r |
223 | "MSH2 BIOS",\r |
224 | "SSH2 BIOS", // 35\r |
225 | "SDRAM",\r |
226 | "DRAM",\r |
227 | "PAL",\r |
6a98f03e |
228 | "events",\r |
b4db550e |
229 | };\r |
230 | \r |
231 | static int write_chunk(chunk_name_e name, int len, void *data, void *file)\r |
232 | {\r |
233 | size_t bwritten = 0;\r |
234 | bwritten += areaWrite(&name, 1, 1, file);\r |
235 | bwritten += areaWrite(&len, 1, 4, file);\r |
236 | bwritten += areaWrite(data, 1, len, file);\r |
237 | \r |
238 | return (bwritten == len + 4 + 1);\r |
239 | }\r |
240 | \r |
3f23709e |
241 | #define CHUNK_LIMIT_W 18772 // sizeof(cdc)\r |
242 | \r |
b4db550e |
243 | #define CHECKED_WRITE(name,len,data) { \\r |
cfae1ae1 |
244 | if (PicoStateProgressCB && name < CHUNK_DEFAULT_COUNT && chunk_names[name]) { \\r |
b4db550e |
245 | strncpy(sbuff + 9, chunk_names[name], sizeof(sbuff) - 9); \\r |
246 | PicoStateProgressCB(sbuff); \\r |
247 | } \\r |
3f23709e |
248 | if (data == buf2 && len > CHUNK_LIMIT_W) \\r |
249 | goto out; \\r |
250 | if (!write_chunk(name, len, data, file)) \\r |
251 | goto out; \\r |
b4db550e |
252 | }\r |
253 | \r |
254 | #define CHECKED_WRITE_BUFF(name,buff) { \\r |
cfae1ae1 |
255 | if (PicoStateProgressCB && name < CHUNK_DEFAULT_COUNT && chunk_names[name]) { \\r |
b4db550e |
256 | strncpy(sbuff + 9, chunk_names[name], sizeof(sbuff) - 9); \\r |
257 | PicoStateProgressCB(sbuff); \\r |
258 | } \\r |
3f23709e |
259 | if (!write_chunk(name, sizeof(buff), &buff, file)) \\r |
260 | goto out; \\r |
b4db550e |
261 | }\r |
262 | \r |
263 | static int state_save(void *file)\r |
264 | {\r |
265 | char sbuff[32] = "Saving.. ";\r |
266 | unsigned char buff[0x60], buff_z80[Z80_STATE_SIZE];\r |
267 | void *ym2612_regs = YM2612GetRegs();\r |
3f23709e |
268 | void *buf2 = NULL;\r |
269 | int ver = 0x0191; // not really used..\r |
270 | int retval = -1;\r |
a93a80de |
271 | int len;\r |
b4db550e |
272 | \r |
273 | areaWrite("PicoSEXT", 1, 8, file);\r |
274 | areaWrite(&ver, 1, 4, file);\r |
275 | \r |
276 | if (!(PicoAHW & PAHW_SMS)) {\r |
277 | memset(buff, 0, sizeof(buff));\r |
278 | SekPackCpu(buff, 0);\r |
279 | CHECKED_WRITE_BUFF(CHUNK_M68K, buff);\r |
280 | CHECKED_WRITE_BUFF(CHUNK_RAM, Pico.ram);\r |
281 | CHECKED_WRITE_BUFF(CHUNK_VSRAM, Pico.vsram);\r |
282 | CHECKED_WRITE_BUFF(CHUNK_IOPORTS, Pico.ioports);\r |
283 | ym2612_pack_state();\r |
284 | CHECKED_WRITE(CHUNK_FM, 0x200+4, ym2612_regs);\r |
285 | }\r |
286 | else {\r |
287 | CHECKED_WRITE_BUFF(CHUNK_SMS, Pico.ms);\r |
288 | }\r |
289 | \r |
290 | CHECKED_WRITE_BUFF(CHUNK_VRAM, Pico.vram);\r |
291 | CHECKED_WRITE_BUFF(CHUNK_ZRAM, Pico.zram);\r |
292 | CHECKED_WRITE_BUFF(CHUNK_CRAM, Pico.cram);\r |
293 | CHECKED_WRITE_BUFF(CHUNK_MISC, Pico.m);\r |
294 | CHECKED_WRITE_BUFF(CHUNK_VIDEO, Pico.video);\r |
295 | \r |
296 | z80_pack(buff_z80);\r |
297 | CHECKED_WRITE_BUFF(CHUNK_Z80, buff_z80);\r |
298 | CHECKED_WRITE(CHUNK_PSG, 28*4, sn76496_regs);\r |
299 | \r |
300 | if (PicoAHW & PAHW_MCD)\r |
301 | {\r |
3f23709e |
302 | buf2 = malloc(CHUNK_LIMIT_W);\r |
303 | if (buf2 == NULL)\r |
304 | return -1;\r |
305 | \r |
b4db550e |
306 | memset(buff, 0, sizeof(buff));\r |
307 | SekPackCpu(buff, 1);\r |
308 | if (Pico_mcd->s68k_regs[3] & 4) // 1M mode?\r |
309 | wram_1M_to_2M(Pico_mcd->word_ram2M);\r |
895d1512 |
310 | memcpy(&Pico_mcd->m.hint_vector, Pico_mcd->bios + 0x72,\r |
311 | sizeof(Pico_mcd->m.hint_vector));\r |
b4db550e |
312 | \r |
313 | CHECKED_WRITE_BUFF(CHUNK_S68K, buff);\r |
314 | CHECKED_WRITE_BUFF(CHUNK_PRG_RAM, Pico_mcd->prg_ram);\r |
315 | CHECKED_WRITE_BUFF(CHUNK_WORD_RAM, Pico_mcd->word_ram2M); // in 2M format\r |
316 | CHECKED_WRITE_BUFF(CHUNK_PCM_RAM, Pico_mcd->pcm_ram);\r |
317 | CHECKED_WRITE_BUFF(CHUNK_BRAM, Pico_mcd->bram);\r |
318 | CHECKED_WRITE_BUFF(CHUNK_GA_REGS, Pico_mcd->s68k_regs); // GA regs, not CPU regs\r |
319 | CHECKED_WRITE_BUFF(CHUNK_PCM, Pico_mcd->pcm);\r |
320 | CHECKED_WRITE_BUFF(CHUNK_CDD, Pico_mcd->cdd);\r |
b4db550e |
321 | CHECKED_WRITE_BUFF(CHUNK_SCD, Pico_mcd->scd);\r |
b4db550e |
322 | CHECKED_WRITE_BUFF(CHUNK_MISC_CD, Pico_mcd->m);\r |
ae214f1c |
323 | memset(buff, 0, 0x40);\r |
324 | memcpy(buff, pcd_event_times, sizeof(pcd_event_times));\r |
325 | CHECKED_WRITE(CHUNK_CD_EVT, 0x40, buff);\r |
3f23709e |
326 | \r |
327 | len = gfx_context_save(buf2);\r |
328 | CHECKED_WRITE(CHUNK_CD_GFX, len, buf2);\r |
329 | len = cdc_context_save(buf2);\r |
330 | CHECKED_WRITE(CHUNK_CD_CDC, len, buf2);\r |
b4db550e |
331 | \r |
332 | if (Pico_mcd->s68k_regs[3] & 4) // convert back\r |
333 | wram_2M_to_1M(Pico_mcd->word_ram2M);\r |
334 | }\r |
335 | \r |
f3a57b2d |
336 | #ifndef NO_32X\r |
b4db550e |
337 | if (PicoAHW & PAHW_32X)\r |
338 | {\r |
339 | unsigned char cpubuff[SH2_STATE_SIZE];\r |
340 | \r |
341 | memset(cpubuff, 0, sizeof(cpubuff));\r |
342 | \r |
343 | sh2_pack(&sh2s[0], cpubuff);\r |
344 | CHECKED_WRITE_BUFF(CHUNK_MSH2, cpubuff);\r |
f81107f5 |
345 | CHECKED_WRITE_BUFF(CHUNK_MSH2_DATA, sh2s[0].data_array);\r |
346 | CHECKED_WRITE_BUFF(CHUNK_MSH2_PERI, sh2s[0].peri_regs);\r |
b4db550e |
347 | \r |
348 | sh2_pack(&sh2s[1], cpubuff);\r |
349 | CHECKED_WRITE_BUFF(CHUNK_SSH2, cpubuff);\r |
f81107f5 |
350 | CHECKED_WRITE_BUFF(CHUNK_SSH2_DATA, sh2s[1].data_array);\r |
351 | CHECKED_WRITE_BUFF(CHUNK_SSH2_PERI, sh2s[1].peri_regs);\r |
b4db550e |
352 | \r |
353 | CHECKED_WRITE_BUFF(CHUNK_32XSYS, Pico32x);\r |
354 | CHECKED_WRITE_BUFF(CHUNK_M68K_BIOS, Pico32xMem->m68k_rom);\r |
355 | CHECKED_WRITE_BUFF(CHUNK_MSH2_BIOS, Pico32xMem->sh2_rom_m);\r |
356 | CHECKED_WRITE_BUFF(CHUNK_SSH2_BIOS, Pico32xMem->sh2_rom_s);\r |
357 | CHECKED_WRITE_BUFF(CHUNK_SDRAM, Pico32xMem->sdram);\r |
358 | CHECKED_WRITE_BUFF(CHUNK_DRAM, Pico32xMem->dram);\r |
359 | CHECKED_WRITE_BUFF(CHUNK_32XPAL, Pico32xMem->pal);\r |
ed4402a7 |
360 | \r |
6a98f03e |
361 | memset(buff, 0, 0x40);\r |
ae214f1c |
362 | memcpy(buff, p32x_event_times, sizeof(p32x_event_times));\r |
6a98f03e |
363 | CHECKED_WRITE(CHUNK_32X_EVT, 0x40, buff);\r |
b4db550e |
364 | }\r |
f3a57b2d |
365 | #endif\r |
b4db550e |
366 | \r |
367 | if (carthw_chunks != NULL)\r |
368 | {\r |
369 | carthw_state_chunk *chwc;\r |
370 | if (PicoStateProgressCB)\r |
371 | PicoStateProgressCB("Saving.. cart hw state");\r |
372 | for (chwc = carthw_chunks; chwc->ptr != NULL; chwc++)\r |
373 | CHECKED_WRITE(chwc->chunk, chwc->size, chwc->ptr);\r |
374 | }\r |
375 | \r |
3f23709e |
376 | retval = 0;\r |
377 | \r |
378 | out:\r |
379 | if (buf2 != NULL)\r |
380 | free(buf2);\r |
381 | return retval;\r |
b4db550e |
382 | }\r |
383 | \r |
384 | static int g_read_offs = 0;\r |
385 | \r |
386 | #define R_ERROR_RETURN(error) \\r |
387 | { \\r |
388 | elprintf(EL_STATUS, "load_state @ %x: " error, g_read_offs); \\r |
3f23709e |
389 | goto out; \\r |
b4db550e |
390 | }\r |
391 | \r |
392 | // when is eof really set?\r |
393 | #define CHECKED_READ(len,data) { \\r |
394 | if (areaRead(data, 1, len, file) != len) { \\r |
395 | if (len == 1 && areaEof(file)) goto readend; \\r |
396 | R_ERROR_RETURN("areaRead: premature EOF\n"); \\r |
b4db550e |
397 | } \\r |
398 | g_read_offs += len; \\r |
399 | }\r |
400 | \r |
401 | #define CHECKED_READ2(len2,data) { \\r |
402 | if (len2 != len) { \\r |
403 | elprintf(EL_STATUS, "unexpected len %i, wanted %i (%s)", len, len2, #len2); \\r |
404 | if (len > len2) R_ERROR_RETURN("failed."); \\r |
405 | /* else read anyway and hope for the best.. */ \\r |
406 | } \\r |
407 | CHECKED_READ(len, data); \\r |
408 | }\r |
409 | \r |
410 | #define CHECKED_READ_BUFF(buff) CHECKED_READ2(sizeof(buff), &buff);\r |
411 | \r |
3f23709e |
412 | #define CHUNK_LIMIT_R 0x10960 // sizeof(old_cdc)\r |
413 | \r |
414 | #define CHECKED_READ_LIM(data) { \\r |
415 | if (len > CHUNK_LIMIT_R) \\r |
416 | R_ERROR_RETURN("chunk size over limit."); \\r |
417 | CHECKED_READ(len, data); \\r |
418 | }\r |
419 | \r |
b4db550e |
420 | static int state_load(void *file)\r |
421 | {\r |
422 | unsigned char buff_m68k[0x60], buff_s68k[0x60];\r |
423 | unsigned char buff_z80[Z80_STATE_SIZE];\r |
424 | unsigned char buff_sh2[SH2_STATE_SIZE];\r |
3f23709e |
425 | unsigned char *buf = NULL;\r |
b4db550e |
426 | unsigned char chunk;\r |
427 | void *ym2612_regs;\r |
3f23709e |
428 | int len_check;\r |
429 | int retval = -1;\r |
b4db550e |
430 | char header[8];\r |
431 | int ver, len;\r |
432 | \r |
03065bb6 |
433 | memset(buff_m68k, 0, sizeof(buff_m68k));\r |
434 | memset(buff_s68k, 0, sizeof(buff_s68k));\r |
435 | memset(buff_z80, 0, sizeof(buff_z80));\r |
436 | \r |
3f23709e |
437 | buf = malloc(CHUNK_LIMIT_R);\r |
438 | if (buf == NULL)\r |
439 | return -1;\r |
440 | \r |
b4db550e |
441 | g_read_offs = 0;\r |
442 | CHECKED_READ(8, header);\r |
443 | if (strncmp(header, "PicoSMCD", 8) && strncmp(header, "PicoSEXT", 8))\r |
444 | R_ERROR_RETURN("bad header");\r |
445 | CHECKED_READ(4, &ver);\r |
446 | \r |
ae214f1c |
447 | memset(pcd_event_times, 0, sizeof(pcd_event_times));\r |
448 | memset(p32x_event_times, 0, sizeof(p32x_event_times));\r |
449 | \r |
b4db550e |
450 | while (!areaEof(file))\r |
451 | {\r |
3f23709e |
452 | len_check = 0;\r |
b4db550e |
453 | CHECKED_READ(1, &chunk);\r |
454 | CHECKED_READ(4, &len);\r |
455 | if (len < 0 || len > 1024*512) R_ERROR_RETURN("bad length");\r |
456 | if (CHUNK_S68K <= chunk && chunk <= CHUNK_MISC_CD && !(PicoAHW & PAHW_MCD))\r |
457 | R_ERROR_RETURN("cd chunk in non CD state?");\r |
27e26273 |
458 | if (CHUNK_32X_FIRST <= chunk && chunk <= CHUNK_32X_LAST && !(PicoAHW & PAHW_32X))\r |
459 | Pico32xStartup();\r |
b4db550e |
460 | \r |
461 | switch (chunk)\r |
462 | {\r |
463 | case CHUNK_M68K:\r |
464 | CHECKED_READ_BUFF(buff_m68k);\r |
465 | break;\r |
466 | \r |
467 | case CHUNK_Z80:\r |
468 | CHECKED_READ_BUFF(buff_z80);\r |
b4db550e |
469 | break;\r |
470 | \r |
471 | case CHUNK_RAM: CHECKED_READ_BUFF(Pico.ram); break;\r |
472 | case CHUNK_VRAM: CHECKED_READ_BUFF(Pico.vram); break;\r |
473 | case CHUNK_ZRAM: CHECKED_READ_BUFF(Pico.zram); break;\r |
474 | case CHUNK_CRAM: CHECKED_READ_BUFF(Pico.cram); break;\r |
475 | case CHUNK_VSRAM: CHECKED_READ_BUFF(Pico.vsram); break;\r |
476 | case CHUNK_MISC: CHECKED_READ_BUFF(Pico.m); break;\r |
477 | case CHUNK_VIDEO: CHECKED_READ_BUFF(Pico.video); break;\r |
478 | case CHUNK_IOPORTS: CHECKED_READ_BUFF(Pico.ioports); break;\r |
479 | case CHUNK_PSG: CHECKED_READ2(28*4, sn76496_regs); break;\r |
480 | case CHUNK_FM:\r |
481 | ym2612_regs = YM2612GetRegs();\r |
482 | CHECKED_READ2(0x200+4, ym2612_regs);\r |
483 | ym2612_unpack_state();\r |
484 | break;\r |
485 | \r |
486 | case CHUNK_SMS:\r |
487 | CHECKED_READ_BUFF(Pico.ms);\r |
488 | break;\r |
489 | \r |
490 | // cd stuff\r |
491 | case CHUNK_S68K:\r |
492 | CHECKED_READ_BUFF(buff_s68k);\r |
493 | break;\r |
494 | \r |
495 | case CHUNK_PRG_RAM: CHECKED_READ_BUFF(Pico_mcd->prg_ram); break;\r |
496 | case CHUNK_WORD_RAM: CHECKED_READ_BUFF(Pico_mcd->word_ram2M); break;\r |
497 | case CHUNK_PCM_RAM: CHECKED_READ_BUFF(Pico_mcd->pcm_ram); break;\r |
498 | case CHUNK_BRAM: CHECKED_READ_BUFF(Pico_mcd->bram); break;\r |
499 | case CHUNK_GA_REGS: CHECKED_READ_BUFF(Pico_mcd->s68k_regs); break;\r |
500 | case CHUNK_PCM: CHECKED_READ_BUFF(Pico_mcd->pcm); break;\r |
501 | case CHUNK_CDD: CHECKED_READ_BUFF(Pico_mcd->cdd); break;\r |
b4db550e |
502 | case CHUNK_SCD: CHECKED_READ_BUFF(Pico_mcd->scd); break;\r |
b4db550e |
503 | case CHUNK_MISC_CD: CHECKED_READ_BUFF(Pico_mcd->m); break;\r |
504 | \r |
ae214f1c |
505 | case CHUNK_CD_EVT:\r |
3f23709e |
506 | CHECKED_READ2(0x40, buf);\r |
507 | memcpy(pcd_event_times, buf, sizeof(pcd_event_times));\r |
ae214f1c |
508 | break;\r |
509 | \r |
a93a80de |
510 | case CHUNK_CD_GFX:\r |
3f23709e |
511 | CHECKED_READ_LIM(buf);\r |
512 | len_check = gfx_context_load(buf);\r |
513 | break;\r |
514 | \r |
515 | case CHUNK_CD_CDC:\r |
516 | CHECKED_READ_LIM(buf);\r |
517 | len_check = cdc_context_load(buf);\r |
518 | break;\r |
519 | \r |
520 | // old, to be removed:\r |
521 | case CHUNK_CDC:\r |
522 | CHECKED_READ_LIM(buf);\r |
523 | cdc_context_load_old(buf);\r |
a93a80de |
524 | break;\r |
525 | \r |
b4db550e |
526 | // 32x stuff\r |
f3a57b2d |
527 | #ifndef NO_32X\r |
b4db550e |
528 | case CHUNK_MSH2:\r |
529 | CHECKED_READ_BUFF(buff_sh2);\r |
530 | sh2_unpack(&sh2s[0], buff_sh2);\r |
531 | break;\r |
532 | \r |
533 | case CHUNK_SSH2:\r |
534 | CHECKED_READ_BUFF(buff_sh2);\r |
535 | sh2_unpack(&sh2s[1], buff_sh2);\r |
536 | break;\r |
537 | \r |
f81107f5 |
538 | case CHUNK_MSH2_DATA: CHECKED_READ_BUFF(sh2s[0].data_array); break;\r |
539 | case CHUNK_MSH2_PERI: CHECKED_READ_BUFF(sh2s[0].peri_regs); break;\r |
540 | case CHUNK_SSH2_DATA: CHECKED_READ_BUFF(sh2s[1].data_array); break;\r |
541 | case CHUNK_SSH2_PERI: CHECKED_READ_BUFF(sh2s[1].peri_regs); break;\r |
b4db550e |
542 | case CHUNK_32XSYS: CHECKED_READ_BUFF(Pico32x); break;\r |
543 | case CHUNK_M68K_BIOS: CHECKED_READ_BUFF(Pico32xMem->m68k_rom); break;\r |
544 | case CHUNK_MSH2_BIOS: CHECKED_READ_BUFF(Pico32xMem->sh2_rom_m); break;\r |
545 | case CHUNK_SSH2_BIOS: CHECKED_READ_BUFF(Pico32xMem->sh2_rom_s); break;\r |
546 | case CHUNK_SDRAM: CHECKED_READ_BUFF(Pico32xMem->sdram); break;\r |
547 | case CHUNK_DRAM: CHECKED_READ_BUFF(Pico32xMem->dram); break;\r |
548 | case CHUNK_32XPAL: CHECKED_READ_BUFF(Pico32xMem->pal); break;\r |
6a98f03e |
549 | \r |
550 | case CHUNK_32X_EVT:\r |
3f23709e |
551 | CHECKED_READ2(0x40, buf);\r |
552 | memcpy(p32x_event_times, buf, sizeof(p32x_event_times));\r |
6a98f03e |
553 | break;\r |
f3a57b2d |
554 | #endif\r |
b4db550e |
555 | default:\r |
556 | if (carthw_chunks != NULL)\r |
557 | {\r |
558 | carthw_state_chunk *chwc;\r |
559 | for (chwc = carthw_chunks; chwc->ptr != NULL; chwc++) {\r |
560 | if (chwc->chunk == chunk) {\r |
561 | CHECKED_READ2(chwc->size, chwc->ptr);\r |
562 | goto breakswitch;\r |
563 | }\r |
564 | }\r |
565 | }\r |
566 | elprintf(EL_STATUS, "load_state: skipping unknown chunk %i of size %i", chunk, len);\r |
567 | areaSeek(file, len, SEEK_CUR);\r |
568 | break;\r |
569 | }\r |
3f23709e |
570 | breakswitch:\r |
571 | if (len_check != 0 && len_check != len)\r |
572 | elprintf(EL_STATUS, "load_state: chunk %d has bad len %d/%d",\r |
573 | len, len_check);\r |
b4db550e |
574 | }\r |
575 | \r |
576 | readend:\r |
577 | if (PicoAHW & PAHW_SMS)\r |
578 | PicoStateLoadedMS();\r |
579 | \r |
27e26273 |
580 | if (PicoAHW & PAHW_32X)\r |
581 | Pico32xStateLoaded(1);\r |
582 | \r |
03065bb6 |
583 | // must unpack 68k and z80 after banks are set up\r |
b4db550e |
584 | if (!(PicoAHW & PAHW_SMS))\r |
585 | SekUnpackCpu(buff_m68k, 0);\r |
27e26273 |
586 | if (PicoAHW & PAHW_MCD)\r |
587 | SekUnpackCpu(buff_s68k, 1);\r |
b4db550e |
588 | \r |
03065bb6 |
589 | z80_unpack(buff_z80);\r |
590 | \r |
27e26273 |
591 | // due to dep from 68k cycles..\r |
ae214f1c |
592 | SekCycleAim = SekCycleCnt;\r |
b4db550e |
593 | if (PicoAHW & PAHW_32X)\r |
27e26273 |
594 | Pico32xStateLoaded(0);\r |
ae214f1c |
595 | if (PicoAHW & PAHW_MCD)\r |
596 | {\r |
597 | SekCycleAimS68k = SekCycleCntS68k;\r |
598 | pcd_state_loaded();\r |
599 | \r |
600 | if (!(Pico_mcd->s68k_regs[0x36] & 1) && (Pico_mcd->scd.Status_CDC & 1))\r |
601 | cdda_start_play();\r |
602 | }\r |
b4db550e |
603 | \r |
3f23709e |
604 | retval = 0;\r |
605 | \r |
606 | out:\r |
607 | free(buf);\r |
608 | return retval;\r |
b4db550e |
609 | }\r |
610 | \r |
611 | static int state_load_gfx(void *file)\r |
612 | {\r |
613 | int ver, len, found = 0, to_find = 4;\r |
614 | char buff[8];\r |
615 | \r |
616 | if (PicoAHW & PAHW_32X)\r |
617 | to_find += 2;\r |
618 | \r |
619 | g_read_offs = 0;\r |
620 | CHECKED_READ(8, buff);\r |
621 | if (strncmp((char *)buff, "PicoSMCD", 8) && strncmp((char *)buff, "PicoSEXT", 8))\r |
622 | R_ERROR_RETURN("bad header");\r |
623 | CHECKED_READ(4, &ver);\r |
624 | \r |
625 | while (!areaEof(file) && found < to_find)\r |
626 | {\r |
627 | CHECKED_READ(1, buff);\r |
628 | CHECKED_READ(4, &len);\r |
629 | if (len < 0 || len > 1024*512) R_ERROR_RETURN("bad length");\r |
630 | if (buff[0] > CHUNK_FM && buff[0] <= CHUNK_MISC_CD && !(PicoAHW & PAHW_MCD))\r |
631 | R_ERROR_RETURN("cd chunk in non CD state?");\r |
632 | \r |
633 | switch (buff[0])\r |
634 | {\r |
635 | case CHUNK_VRAM: CHECKED_READ_BUFF(Pico.vram); found++; break;\r |
636 | case CHUNK_CRAM: CHECKED_READ_BUFF(Pico.cram); found++; break;\r |
637 | case CHUNK_VSRAM: CHECKED_READ_BUFF(Pico.vsram); found++; break;\r |
638 | case CHUNK_VIDEO: CHECKED_READ_BUFF(Pico.video); found++; break;\r |
639 | \r |
f3a57b2d |
640 | #ifndef NO_32X\r |
b4db550e |
641 | case CHUNK_DRAM:\r |
642 | if (Pico32xMem != NULL)\r |
643 | CHECKED_READ_BUFF(Pico32xMem->dram);\r |
644 | break;\r |
645 | \r |
646 | case CHUNK_32XPAL:\r |
647 | if (Pico32xMem != NULL)\r |
648 | CHECKED_READ_BUFF(Pico32xMem->pal);\r |
649 | Pico32x.dirty_pal = 1;\r |
650 | break;\r |
651 | \r |
652 | case CHUNK_32XSYS:\r |
653 | CHECKED_READ_BUFF(Pico32x);\r |
654 | break;\r |
f3a57b2d |
655 | #endif\r |
b4db550e |
656 | default:\r |
657 | areaSeek(file, len, SEEK_CUR);\r |
658 | break;\r |
659 | }\r |
660 | }\r |
661 | \r |
3f23709e |
662 | out:\r |
b4db550e |
663 | readend:\r |
664 | return 0;\r |
665 | }\r |
666 | \r |
86b38dc4 |
667 | static int pico_state_internal(void *afile, int is_save)\r |
b4db550e |
668 | {\r |
b4db550e |
669 | int ret;\r |
670 | \r |
b4db550e |
671 | if (is_save)\r |
672 | ret = state_save(afile);\r |
673 | else {\r |
674 | ret = state_load(afile);\r |
675 | if (ret != 0) {\r |
676 | areaSeek(afile, 0, SEEK_SET);\r |
677 | ret = state_load_legacy(afile);\r |
678 | }\r |
679 | \r |
680 | if (PicoLoadStateHook != NULL)\r |
681 | PicoLoadStateHook();\r |
682 | Pico.m.dirtyPal = 1;\r |
683 | }\r |
684 | \r |
86b38dc4 |
685 | return ret;\r |
686 | }\r |
687 | \r |
688 | int PicoState(const char *fname, int is_save)\r |
689 | {\r |
690 | void *afile = NULL;\r |
691 | int ret;\r |
692 | \r |
693 | afile = open_save_file(fname, is_save);\r |
694 | if (afile == NULL)\r |
695 | return -1;\r |
696 | \r |
697 | ret = pico_state_internal(afile, is_save);\r |
b4db550e |
698 | areaClose(afile);\r |
699 | return ret;\r |
700 | }\r |
701 | \r |
86b38dc4 |
702 | int PicoStateFP(void *afile, int is_save,\r |
703 | arearw *read, arearw *write, areaeof *eof, areaseek *seek)\r |
704 | {\r |
705 | areaRead = read;\r |
706 | areaWrite = write;\r |
707 | areaEof = eof;\r |
708 | areaSeek = seek;\r |
709 | areaClose = NULL;\r |
710 | \r |
711 | return pico_state_internal(afile, is_save);\r |
712 | }\r |
713 | \r |
b4db550e |
714 | int PicoStateLoadGfx(const char *fname)\r |
715 | {\r |
716 | void *afile;\r |
717 | int ret;\r |
718 | \r |
719 | afile = open_save_file(fname, 0);\r |
720 | if (afile == NULL)\r |
721 | return -1;\r |
722 | \r |
723 | ret = state_load_gfx(afile);\r |
724 | if (ret != 0) {\r |
725 | // assume legacy\r |
726 | areaSeek(afile, 0x10020, SEEK_SET); // skip header and RAM\r |
727 | areaRead(Pico.vram, 1, sizeof(Pico.vram), afile);\r |
728 | areaSeek(afile, 0x2000, SEEK_CUR);\r |
729 | areaRead(Pico.cram, 1, sizeof(Pico.cram), afile);\r |
730 | areaRead(Pico.vsram, 1, sizeof(Pico.vsram), afile);\r |
731 | areaSeek(afile, 0x221a0, SEEK_SET);\r |
732 | areaRead(&Pico.video, 1, sizeof(Pico.video), afile);\r |
733 | }\r |
734 | areaClose(afile);\r |
735 | return 0;\r |
736 | }\r |
737 | \r |
738 | // tmp state\r |
739 | struct PicoTmp\r |
740 | {\r |
741 | unsigned short vram[0x8000];\r |
742 | unsigned short cram[0x40];\r |
743 | unsigned short vsram[0x40];\r |
744 | \r |
745 | //struct PicoMisc m;\r |
746 | struct PicoVideo video;\r |
747 | \r |
748 | struct {\r |
749 | struct Pico32x p32x;\r |
750 | unsigned short dram[2][0x20000/2];\r |
751 | unsigned short pal[0x100];\r |
752 | } t32x;\r |
753 | };\r |
754 | \r |
755 | // returns data ptr to free() or PicoTmpStateRestore()\r |
756 | void *PicoTmpStateSave(void)\r |
757 | {\r |
758 | // gfx only for now\r |
759 | struct PicoTmp *t = malloc(sizeof(*t));\r |
760 | if (t == NULL)\r |
761 | return NULL;\r |
762 | \r |
763 | memcpy(t->vram, Pico.vram, sizeof(Pico.vram));\r |
764 | memcpy(t->cram, Pico.cram, sizeof(Pico.cram));\r |
765 | memcpy(t->vsram, Pico.vsram, sizeof(Pico.vsram));\r |
766 | memcpy(&t->video, &Pico.video, sizeof(Pico.video));\r |
767 | \r |
f3a57b2d |
768 | #ifndef NO_32X\r |
b4db550e |
769 | if (PicoAHW & PAHW_32X) {\r |
770 | memcpy(&t->t32x.p32x, &Pico32x, sizeof(Pico32x));\r |
771 | memcpy(t->t32x.dram, Pico32xMem->dram, sizeof(Pico32xMem->dram));\r |
772 | memcpy(t->t32x.pal, Pico32xMem->pal, sizeof(Pico32xMem->pal));\r |
773 | }\r |
f3a57b2d |
774 | #endif\r |
b4db550e |
775 | \r |
776 | return t;\r |
777 | }\r |
778 | \r |
779 | void PicoTmpStateRestore(void *data)\r |
780 | {\r |
781 | struct PicoTmp *t = data;\r |
782 | if (t == NULL)\r |
783 | return;\r |
784 | \r |
785 | memcpy(Pico.vram, t->vram, sizeof(Pico.vram));\r |
786 | memcpy(Pico.cram, t->cram, sizeof(Pico.cram));\r |
787 | memcpy(Pico.vsram, t->vsram, sizeof(Pico.vsram));\r |
788 | memcpy(&Pico.video, &t->video, sizeof(Pico.video));\r |
789 | Pico.m.dirtyPal = 1;\r |
790 | \r |
f3a57b2d |
791 | #ifndef NO_32X\r |
b4db550e |
792 | if (PicoAHW & PAHW_32X) {\r |
793 | memcpy(&Pico32x, &t->t32x.p32x, sizeof(Pico32x));\r |
794 | memcpy(Pico32xMem->dram, t->t32x.dram, sizeof(Pico32xMem->dram));\r |
795 | memcpy(Pico32xMem->pal, t->t32x.pal, sizeof(Pico32xMem->pal));\r |
796 | Pico32x.dirty_pal = 1;\r |
797 | }\r |
f3a57b2d |
798 | #endif\r |
b4db550e |
799 | }\r |
800 | \r |
ed4402a7 |
801 | // vim:shiftwidth=2:ts=2:expandtab\r |