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ef79bbde P |
1 | /*************************************************************************** |
2 | * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team * | |
3 | * * | |
4 | * This program is free software; you can redistribute it and/or modify * | |
5 | * it under the terms of the GNU General Public License as published by * | |
6 | * the Free Software Foundation; either version 2 of the License, or * | |
7 | * (at your option) any later version. * | |
8 | * * | |
9 | * This program is distributed in the hope that it will be useful, * | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * | |
12 | * GNU General Public License for more details. * | |
13 | * * | |
14 | * You should have received a copy of the GNU General Public License * | |
15 | * along with this program; if not, write to the * | |
16 | * Free Software Foundation, Inc., * | |
17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. * | |
18 | ***************************************************************************/ | |
19 | ||
20 | /* | |
21 | * Miscellaneous functions, including savestates and CD-ROM loading. | |
22 | */ | |
23 | ||
630b122b | 24 | #include <stddef.h> |
38f70ea4 | 25 | #include <errno.h> |
f5f5f5dd | 26 | #include <assert.h> |
ef79bbde P |
27 | #include "misc.h" |
28 | #include "cdrom.h" | |
29 | #include "mdec.h" | |
ddbaf678 | 30 | #include "gpu.h" |
ef79bbde | 31 | #include "ppf.h" |
584fc319 | 32 | #include "psxbios.h" |
630b122b | 33 | #include "database.h" |
496d88d4 | 34 | #include <zlib.h> |
ef79bbde P |
35 | |
36 | char CdromId[10] = ""; | |
37 | char CdromLabel[33] = ""; | |
ec92465a | 38 | int CdromFrontendId; // for frontend use |
ef79bbde P |
39 | |
40 | // PSX Executable types | |
41 | #define PSX_EXE 1 | |
42 | #define CPE_EXE 2 | |
43 | #define COFF_EXE 3 | |
44 | #define INVALID_EXE 4 | |
45 | ||
46 | #define ISODCL(from, to) (to - from + 1) | |
47 | ||
48 | struct iso_directory_record { | |
49 | char length [ISODCL (1, 1)]; /* 711 */ | |
50 | char ext_attr_length [ISODCL (2, 2)]; /* 711 */ | |
51 | char extent [ISODCL (3, 10)]; /* 733 */ | |
52 | char size [ISODCL (11, 18)]; /* 733 */ | |
53 | char date [ISODCL (19, 25)]; /* 7 by 711 */ | |
54 | char flags [ISODCL (26, 26)]; | |
55 | char file_unit_size [ISODCL (27, 27)]; /* 711 */ | |
56 | char interleave [ISODCL (28, 28)]; /* 711 */ | |
57 | char volume_sequence_number [ISODCL (29, 32)]; /* 723 */ | |
58 | unsigned char name_len [ISODCL (33, 33)]; /* 711 */ | |
59 | char name [1]; | |
60 | }; | |
61 | ||
6d8f88c4 | 62 | static void mmssdd( char *b, char *p ) |
ef79bbde P |
63 | { |
64 | int m, s, d; | |
6d8f88c4 | 65 | unsigned char *ub = (void *)b; |
66 | int block = (ub[3] << 24) | (ub[2] << 16) | (ub[1] << 8) | ub[0]; | |
ef79bbde P |
67 | |
68 | block += 150; | |
69 | m = block / 4500; // minutes | |
70 | block = block - m * 4500; // minutes rest | |
71 | s = block / 75; // seconds | |
72 | d = block - s * 75; // seconds rest | |
73 | ||
74 | m = ((m / 10) << 4) | m % 10; | |
75 | s = ((s / 10) << 4) | s % 10; | |
3e42b115 | 76 | d = ((d / 10) << 4) | d % 10; |
ef79bbde P |
77 | |
78 | p[0] = m; | |
79 | p[1] = s; | |
80 | p[2] = d; | |
81 | } | |
82 | ||
83 | #define incTime() \ | |
84 | time[0] = btoi(time[0]); time[1] = btoi(time[1]); time[2] = btoi(time[2]); \ | |
85 | time[2]++; \ | |
86 | if(time[2] == 75) { \ | |
87 | time[2] = 0; \ | |
88 | time[1]++; \ | |
89 | if (time[1] == 60) { \ | |
90 | time[1] = 0; \ | |
91 | time[0]++; \ | |
92 | } \ | |
93 | } \ | |
94 | time[0] = itob(time[0]); time[1] = itob(time[1]); time[2] = itob(time[2]); | |
95 | ||
96 | #define READTRACK() \ | |
1290ebe4 | 97 | if (!CDR_readTrack(time)) return -1; \ |
305c8c93 | 98 | buf = (void *)CDR_getBuffer(); \ |
99 | if (buf == NULL) return -1; \ | |
100 | else CheckPPFCache((u8 *)buf, time[0], time[1], time[2]); | |
ef79bbde P |
101 | |
102 | #define READDIR(_dir) \ | |
103 | READTRACK(); \ | |
104 | memcpy(_dir, buf + 12, 2048); \ | |
105 | \ | |
106 | incTime(); \ | |
107 | READTRACK(); \ | |
108 | memcpy(_dir + 2048, buf + 12, 2048); | |
109 | ||
305c8c93 | 110 | int GetCdromFile(u8 *mdir, u8 *time, char *filename) { |
ef79bbde | 111 | struct iso_directory_record *dir; |
5be6eaeb | 112 | int retval = -1; |
305c8c93 | 113 | u8 ddir[4096]; |
ef79bbde P |
114 | u8 *buf; |
115 | int i; | |
116 | ||
117 | // only try to scan if a filename is given | |
c35a25f6 | 118 | if (filename == INVALID_PTR || !strlen(filename)) return -1; |
ef79bbde P |
119 | |
120 | i = 0; | |
121 | while (i < 4096) { | |
122 | dir = (struct iso_directory_record*) &mdir[i]; | |
123 | if (dir->length[0] == 0) { | |
124 | return -1; | |
125 | } | |
1c2c2bfb | 126 | i += (u8)dir->length[0]; |
ef79bbde P |
127 | |
128 | if (dir->flags[0] & 0x2) { // it's a dir | |
129 | if (!strnicmp((char *)&dir->name[0], filename, dir->name_len[0])) { | |
130 | if (filename[dir->name_len[0]] != '\\') continue; | |
131 | ||
132 | filename += dir->name_len[0] + 1; | |
133 | ||
134 | mmssdd(dir->extent, (char *)time); | |
135 | READDIR(ddir); | |
136 | i = 0; | |
137 | mdir = ddir; | |
138 | } | |
139 | } else { | |
140 | if (!strnicmp((char *)&dir->name[0], filename, strlen(filename))) { | |
141 | mmssdd(dir->extent, (char *)time); | |
5be6eaeb | 142 | retval = 0; |
ef79bbde P |
143 | break; |
144 | } | |
145 | } | |
146 | } | |
5be6eaeb | 147 | return retval; |
ef79bbde P |
148 | } |
149 | ||
6c62131f | 150 | static void SetBootRegs(u32 pc, u32 gp, u32 sp) |
151 | { | |
152 | //printf("%s %08x %08x %08x\n", __func__, pc, gp, sp); | |
153 | psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, NULL); | |
154 | ||
155 | psxRegs.pc = pc; | |
156 | psxRegs.GPR.n.gp = gp; | |
157 | psxRegs.GPR.n.sp = sp ? sp : 0x801fff00; | |
7575a4aa | 158 | psxRegs.GPR.n.fp = psxRegs.GPR.n.sp; |
159 | ||
160 | psxRegs.GPR.n.t0 = psxRegs.GPR.n.sp; // mimic A(43) | |
161 | psxRegs.GPR.n.t3 = pc; | |
6c62131f | 162 | |
163 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); | |
164 | } | |
165 | ||
b7f50ee7 | 166 | int BiosBootBypass() { |
167 | struct CdrStat stat = { 0, 0, }; | |
f5f5f5dd | 168 | assert(psxRegs.pc == 0x80030000); |
169 | ||
b7f50ee7 | 170 | // no bypass if the lid is open |
171 | CDR__getStatus(&stat); | |
172 | if (stat.Status & 0x10) | |
173 | return 0; | |
174 | ||
f5f5f5dd | 175 | // skip BIOS logos and region check |
176 | psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, NULL); | |
177 | psxRegs.pc = psxRegs.GPR.n.ra; | |
b7f50ee7 | 178 | return 1; |
f5f5f5dd | 179 | } |
180 | ||
9415f066 | 181 | static void getFromCnf(char *buf, const char *key, u32 *val) |
182 | { | |
183 | buf = strstr(buf, key); | |
184 | if (buf) | |
185 | buf = strchr(buf, '='); | |
38f70ea4 | 186 | if (buf) { |
187 | unsigned long v; | |
188 | errno = 0; | |
189 | v = strtoul(buf + 1, NULL, 16); | |
190 | if (errno == 0) | |
191 | *val = v; | |
192 | } | |
9415f066 | 193 | } |
194 | ||
ef79bbde | 195 | int LoadCdrom() { |
584fc319 | 196 | union { |
197 | EXE_HEADER h; | |
198 | u32 d[sizeof(EXE_HEADER) / sizeof(u32)]; | |
199 | } tmpHead; | |
ef79bbde P |
200 | struct iso_directory_record *dir; |
201 | u8 time[4], *buf; | |
202 | u8 mdir[4096]; | |
305c8c93 | 203 | char exename[256]; |
9415f066 | 204 | u32 cnf_tcb = 4; |
205 | u32 cnf_event = 16; | |
206 | u32 cnf_stack = 0; | |
584fc319 | 207 | u32 t_addr; |
208 | u32 t_size; | |
9415f066 | 209 | u32 sp = 0; |
584fc319 | 210 | int i, ret; |
ef79bbde | 211 | |
f5f5f5dd | 212 | if (!Config.HLE) { |
f3bc907d | 213 | if (psxRegs.pc != 0x80030000) // BiosBootBypass'ed or custom BIOS? |
214 | return 0; | |
215 | if (Config.SlowBoot) | |
216 | return 0; | |
ef79bbde P |
217 | } |
218 | ||
219 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
220 | ||
221 | READTRACK(); | |
222 | ||
223 | // skip head and sub, and go to the root directory record | |
3e42b115 | 224 | dir = (struct iso_directory_record*) &buf[12+156]; |
ef79bbde P |
225 | |
226 | mmssdd(dir->extent, (char*)time); | |
227 | ||
228 | READDIR(mdir); | |
229 | ||
230 | // Load SYSTEM.CNF and scan for the main executable | |
231 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") == -1) { | |
232 | // if SYSTEM.CNF is missing, start an existing PSX.EXE | |
233 | if (GetCdromFile(mdir, time, "PSX.EXE;1") == -1) return -1; | |
f5f5f5dd | 234 | strcpy(exename, "PSX.EXE;1"); |
ef79bbde P |
235 | |
236 | READTRACK(); | |
237 | } | |
238 | else { | |
239 | // read the SYSTEM.CNF | |
240 | READTRACK(); | |
9415f066 | 241 | buf[1023] = 0; |
ef79bbde | 242 | |
9415f066 | 243 | ret = sscanf((char *)buf + 12, "BOOT = cdrom:\\%255s", exename); |
244 | if (ret < 1 || GetCdromFile(mdir, time, exename) == -1) { | |
245 | ret = sscanf((char *)buf + 12, "BOOT = cdrom:%255s", exename); | |
246 | if (ret < 1 || GetCdromFile(mdir, time, exename) == -1) { | |
305c8c93 | 247 | char *ptr = strstr((char *)buf + 12, "cdrom:"); |
ef79bbde P |
248 | if (ptr != NULL) { |
249 | ptr += 6; | |
250 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
251 | strncpy(exename, ptr, 255); | |
252 | exename[255] = '\0'; | |
253 | ptr = exename; | |
254 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
255 | *ptr = '\0'; | |
256 | if (GetCdromFile(mdir, time, exename) == -1) | |
257 | return -1; | |
258 | } else | |
259 | return -1; | |
260 | } | |
261 | } | |
9415f066 | 262 | getFromCnf((char *)buf + 12, "TCB", &cnf_tcb); |
263 | getFromCnf((char *)buf + 12, "EVENT", &cnf_event); | |
264 | getFromCnf((char *)buf + 12, "STACK", &cnf_stack); | |
265 | if (Config.HLE) | |
c89fac55 | 266 | psxBiosCnfLoaded(cnf_tcb, cnf_event, cnf_stack); |
ef79bbde P |
267 | |
268 | // Read the EXE-Header | |
269 | READTRACK(); | |
270 | } | |
271 | ||
272 | memcpy(&tmpHead, buf + 12, sizeof(EXE_HEADER)); | |
584fc319 | 273 | for (i = 2; i < sizeof(tmpHead.d) / sizeof(tmpHead.d[0]); i++) |
274 | tmpHead.d[i] = SWAP32(tmpHead.d[i]); | |
ef79bbde | 275 | |
584fc319 | 276 | SysPrintf("manual booting '%s' pc=%x\n", exename, tmpHead.h.pc0); |
277 | sp = tmpHead.h.s_addr; | |
9415f066 | 278 | if (cnf_stack) |
279 | sp = cnf_stack; | |
584fc319 | 280 | SetBootRegs(tmpHead.h.pc0, tmpHead.h.gp0, sp); |
ebe6ff2b | 281 | |
ef79bbde | 282 | // Read the rest of the main executable |
584fc319 | 283 | for (t_addr = tmpHead.h.t_addr, t_size = tmpHead.h.t_size; t_size & ~2047; ) { |
284 | void *ptr = (void *)PSXM(t_addr); | |
ef79bbde P |
285 | |
286 | incTime(); | |
287 | READTRACK(); | |
288 | ||
b012a437 | 289 | if (ptr != INVALID_PTR) memcpy(ptr, buf+12, 2048); |
ef79bbde | 290 | |
584fc319 | 291 | t_addr += 2048; |
292 | t_size -= 2048; | |
ef79bbde P |
293 | } |
294 | ||
584fc319 | 295 | psxCpu->Clear(tmpHead.h.t_addr, tmpHead.h.t_size / 4); |
296 | //psxCpu->Reset(); | |
297 | ||
298 | if (Config.HLE) | |
403a6290 | 299 | psxBiosCheckExe(tmpHead.h.t_addr, tmpHead.h.t_size, 0); |
584fc319 | 300 | |
ef79bbde P |
301 | return 0; |
302 | } | |
303 | ||
304 | int LoadCdromFile(const char *filename, EXE_HEADER *head) { | |
305 | struct iso_directory_record *dir; | |
306 | u8 time[4],*buf; | |
305c8c93 | 307 | u8 mdir[4096]; |
308 | char exename[256]; | |
867297ae | 309 | const char *p1, *p2; |
ef79bbde | 310 | u32 size, addr; |
305c8c93 | 311 | void *mem; |
ef79bbde | 312 | |
de6bb534 | 313 | if (filename == INVALID_PTR) |
314 | return -1; | |
315 | ||
867297ae | 316 | p1 = filename; |
317 | if ((p2 = strchr(p1, ':'))) | |
318 | p1 = p2 + 1; | |
319 | while (*p1 == '\\') | |
320 | p1++; | |
321 | snprintf(exename, sizeof(exename), "%s", p1); | |
ef79bbde P |
322 | |
323 | time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10); | |
324 | ||
325 | READTRACK(); | |
326 | ||
327 | // skip head and sub, and go to the root directory record | |
3e42b115 | 328 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
ef79bbde P |
329 | |
330 | mmssdd(dir->extent, (char*)time); | |
331 | ||
332 | READDIR(mdir); | |
333 | ||
334 | if (GetCdromFile(mdir, time, exename) == -1) return -1; | |
335 | ||
336 | READTRACK(); | |
337 | ||
338 | memcpy(head, buf + 12, sizeof(EXE_HEADER)); | |
de6bb534 | 339 | size = SWAP32(head->t_size); |
340 | addr = SWAP32(head->t_addr); | |
ef79bbde | 341 | |
ebe6ff2b | 342 | psxCpu->Clear(addr, size / 4); |
de6bb534 | 343 | //psxCpu->Reset(); |
ebe6ff2b | 344 | |
345 | while (size & ~2047) { | |
ef79bbde P |
346 | incTime(); |
347 | READTRACK(); | |
348 | ||
305c8c93 | 349 | mem = PSXM(addr); |
b012a437 | 350 | if (mem != INVALID_PTR) |
305c8c93 | 351 | memcpy(mem, buf + 12, 2048); |
ef79bbde P |
352 | |
353 | size -= 2048; | |
354 | addr += 2048; | |
355 | } | |
356 | ||
357 | return 0; | |
358 | } | |
359 | ||
360 | int CheckCdrom() { | |
361 | struct iso_directory_record *dir; | |
305c8c93 | 362 | unsigned char time[4]; |
363 | char *buf; | |
ef79bbde P |
364 | unsigned char mdir[4096]; |
365 | char exename[256]; | |
e06ee7f4 | 366 | int i, len, c; |
ef79bbde P |
367 | |
368 | FreePPFCache(); | |
369 | ||
370 | time[0] = itob(0); | |
371 | time[1] = itob(2); | |
372 | time[2] = itob(0x10); | |
373 | ||
374 | READTRACK(); | |
375 | ||
e06ee7f4 | 376 | memset(CdromLabel, 0, sizeof(CdromLabel)); |
377 | memset(CdromId, 0, sizeof(CdromId)); | |
378 | memset(exename, 0, sizeof(exename)); | |
ef79bbde P |
379 | |
380 | strncpy(CdromLabel, buf + 52, 32); | |
381 | ||
382 | // skip head and sub, and go to the root directory record | |
3e42b115 | 383 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
ef79bbde P |
384 | |
385 | mmssdd(dir->extent, (char *)time); | |
386 | ||
387 | READDIR(mdir); | |
388 | ||
389 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) { | |
390 | READTRACK(); | |
391 | ||
9a9bcd78 | 392 | sscanf(buf + 12, "BOOT = cdrom:\\%255s", exename); |
ef79bbde | 393 | if (GetCdromFile(mdir, time, exename) == -1) { |
9a9bcd78 | 394 | sscanf(buf + 12, "BOOT = cdrom:%255s", exename); |
ef79bbde P |
395 | if (GetCdromFile(mdir, time, exename) == -1) { |
396 | char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir | |
397 | if (ptr != NULL) { | |
398 | ptr += 6; | |
399 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
400 | strncpy(exename, ptr, 255); | |
401 | exename[255] = '\0'; | |
402 | ptr = exename; | |
403 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
404 | *ptr = '\0'; | |
405 | if (GetCdromFile(mdir, time, exename) == -1) | |
406 | return -1; // main executable not found | |
407 | } else | |
408 | return -1; | |
409 | } | |
410 | } | |
1893f408 | 411 | /* Workaround for Wild Arms EU/US which has non-standard string causing incorrect region detection */ |
412 | if (exename[0] == 'E' && exename[1] == 'X' && exename[2] == 'E' && exename[3] == '\\') { | |
413 | size_t offset = 4; | |
414 | size_t i, len = strlen(exename) - offset; | |
415 | for (i = 0; i < len; i++) | |
416 | exename[i] = exename[i + offset]; | |
417 | exename[i] = '\0'; | |
418 | } | |
ef79bbde P |
419 | } else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) { |
420 | strcpy(exename, "PSX.EXE;1"); | |
421 | strcpy(CdromId, "SLUS99999"); | |
422 | } else | |
423 | return -1; // SYSTEM.CNF and PSX.EXE not found | |
424 | ||
425 | if (CdromId[0] == '\0') { | |
e06ee7f4 | 426 | len = strlen(exename); |
427 | c = 0; | |
428 | for (i = 0; i < len; ++i) { | |
429 | if (exename[i] == ';' || c >= sizeof(CdromId) - 1) | |
430 | break; | |
431 | if (isalnum(exename[i])) | |
432 | CdromId[c++] = exename[i]; | |
ef79bbde P |
433 | } |
434 | } | |
435 | ||
0e2e3f49 | 436 | if (CdromId[0] == '\0') |
437 | strcpy(CdromId, "SLUS99999"); | |
438 | ||
ef79bbde | 439 | if (Config.PsxAuto) { // autodetect system (pal or ntsc) |
630b122b | 440 | if ( |
441 | /* Make sure Wild Arms SCUS-94608 is not detected as a PAL game. */ | |
442 | ((CdromId[0] == 's' || CdromId[0] == 'S') && (CdromId[2] == 'e' || CdromId[2] == 'E')) || | |
443 | !strncmp(CdromId, "DTLS3035", 8) || | |
444 | !strncmp(CdromId, "PBPX95001", 9) || // according to redump.org, these PAL | |
445 | !strncmp(CdromId, "PBPX95007", 9) || // discs have a non-standard ID; | |
446 | !strncmp(CdromId, "PBPX95008", 9)) // add more serials if they are discovered. | |
ef79bbde P |
447 | Config.PsxType = PSX_TYPE_PAL; // pal |
448 | else Config.PsxType = PSX_TYPE_NTSC; // ntsc | |
449 | } | |
450 | ||
451 | if (CdromLabel[0] == ' ') { | |
630b122b | 452 | strncpy(CdromLabel, CdromId, 9); |
ef79bbde P |
453 | } |
454 | SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel); | |
455 | SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId); | |
e06ee7f4 | 456 | SysPrintf(_("CD-ROM EXE Name: %.255s\n"), exename); |
630b122b | 457 | |
458 | Apply_Hacks_Cdrom(); | |
ef79bbde P |
459 | |
460 | BuildPPFCache(); | |
461 | ||
462 | return 0; | |
463 | } | |
464 | ||
465 | static int PSXGetFileType(FILE *f) { | |
466 | unsigned long current; | |
467 | u8 mybuf[2048]; | |
468 | EXE_HEADER *exe_hdr; | |
469 | FILHDR *coff_hdr; | |
470 | ||
471 | current = ftell(f); | |
472 | fseek(f, 0L, SEEK_SET); | |
5b568098 | 473 | if (fread(&mybuf, 1, sizeof(mybuf), f) != sizeof(mybuf)) |
9361a5aa EC |
474 | goto io_fail; |
475 | ||
ef79bbde P |
476 | fseek(f, current, SEEK_SET); |
477 | ||
478 | exe_hdr = (EXE_HEADER *)mybuf; | |
479 | if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0) | |
480 | return PSX_EXE; | |
481 | ||
482 | if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E') | |
483 | return CPE_EXE; | |
484 | ||
485 | coff_hdr = (FILHDR *)mybuf; | |
486 | if (SWAPu16(coff_hdr->f_magic) == 0x0162) | |
487 | return COFF_EXE; | |
488 | ||
489 | return INVALID_EXE; | |
9361a5aa EC |
490 | |
491 | io_fail: | |
492 | #ifndef NDEBUG | |
493 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
494 | #endif | |
495 | return INVALID_EXE; | |
ef79bbde P |
496 | } |
497 | ||
96bef96f | 498 | // temporary pandora workaround.. |
499 | // FIXME: remove | |
500 | size_t fread_to_ram(void *ptr, size_t size, size_t nmemb, FILE *stream) | |
501 | { | |
502 | void *tmp; | |
503 | size_t ret = 0; | |
3e42b115 | 504 | |
96bef96f | 505 | tmp = malloc(size * nmemb); |
506 | if (tmp) { | |
507 | ret = fread(tmp, size, nmemb, stream); | |
508 | memcpy(ptr, tmp, size * nmemb); | |
509 | free(tmp); | |
510 | } | |
511 | return ret; | |
512 | } | |
513 | ||
ef79bbde P |
514 | int Load(const char *ExePath) { |
515 | FILE *tmpFile; | |
516 | EXE_HEADER tmpHead; | |
517 | int type; | |
518 | int retval = 0; | |
519 | u8 opcode; | |
520 | u32 section_address, section_size; | |
ebe6ff2b | 521 | void *mem; |
ef79bbde | 522 | |
3e42b115 | 523 | strcpy(CdromId, "SLUS99999"); |
524 | strcpy(CdromLabel, "SLUS_999.99"); | |
ef79bbde P |
525 | |
526 | tmpFile = fopen(ExePath, "rb"); | |
527 | if (tmpFile == NULL) { | |
528 | SysPrintf(_("Error opening file: %s.\n"), ExePath); | |
529 | retval = -1; | |
530 | } else { | |
531 | type = PSXGetFileType(tmpFile); | |
532 | switch (type) { | |
533 | case PSX_EXE: | |
5b568098 | 534 | if (fread(&tmpHead, 1, sizeof(EXE_HEADER), tmpFile) != sizeof(EXE_HEADER)) |
9361a5aa | 535 | goto fail_io; |
ebe6ff2b | 536 | section_address = SWAP32(tmpHead.t_addr); |
537 | section_size = SWAP32(tmpHead.t_size); | |
538 | mem = PSXM(section_address); | |
b012a437 | 539 | if (mem != INVALID_PTR) { |
3e42b115 | 540 | fseek(tmpFile, 0x800, SEEK_SET); |
96bef96f | 541 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 542 | psxCpu->Clear(section_address, section_size / 4); |
543 | } | |
6c62131f | 544 | SetBootRegs(SWAP32(tmpHead.pc0), SWAP32(tmpHead.gp0), |
545 | SWAP32(tmpHead.s_addr)); | |
ef79bbde P |
546 | retval = 0; |
547 | break; | |
548 | case CPE_EXE: | |
549 | fseek(tmpFile, 6, SEEK_SET); /* Something tells me we should go to 4 and read the "08 00" here... */ | |
550 | do { | |
5b568098 | 551 | if (fread(&opcode, 1, sizeof(opcode), tmpFile) != sizeof(opcode)) |
9361a5aa | 552 | goto fail_io; |
ef79bbde P |
553 | switch (opcode) { |
554 | case 1: /* Section loading */ | |
5b568098 | 555 | if (fread(§ion_address, 1, sizeof(section_address), tmpFile) != sizeof(section_address)) |
9361a5aa | 556 | goto fail_io; |
5b568098 | 557 | if (fread(§ion_size, 1, sizeof(section_size), tmpFile) != sizeof(section_size)) |
9361a5aa | 558 | goto fail_io; |
ef79bbde P |
559 | section_address = SWAPu32(section_address); |
560 | section_size = SWAPu32(section_size); | |
561 | #ifdef EMU_LOG | |
562 | EMU_LOG("Loading %08X bytes from %08X to %08X\n", section_size, ftell(tmpFile), section_address); | |
563 | #endif | |
ebe6ff2b | 564 | mem = PSXM(section_address); |
b012a437 | 565 | if (mem != INVALID_PTR) { |
96bef96f | 566 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 567 | psxCpu->Clear(section_address, section_size / 4); |
568 | } | |
ef79bbde P |
569 | break; |
570 | case 3: /* register loading (PC only?) */ | |
571 | fseek(tmpFile, 2, SEEK_CUR); /* unknown field */ | |
5b568098 | 572 | if (fread(&psxRegs.pc, 1, sizeof(psxRegs.pc), tmpFile) != sizeof(psxRegs.pc)) |
9361a5aa | 573 | goto fail_io; |
ef79bbde P |
574 | psxRegs.pc = SWAPu32(psxRegs.pc); |
575 | break; | |
576 | case 0: /* End of file */ | |
577 | break; | |
578 | default: | |
579 | SysPrintf(_("Unknown CPE opcode %02x at position %08x.\n"), opcode, ftell(tmpFile) - 1); | |
580 | retval = -1; | |
581 | break; | |
582 | } | |
583 | } while (opcode != 0 && retval == 0); | |
584 | break; | |
585 | case COFF_EXE: | |
586 | SysPrintf(_("COFF files not supported.\n")); | |
587 | retval = -1; | |
588 | break; | |
589 | case INVALID_EXE: | |
8f00f96c | 590 | SysPrintf(_("This file does not appear to be a valid PSX EXE file.\n")); |
591 | SysPrintf(_("(did you forget -cdfile ?)\n")); | |
ef79bbde P |
592 | retval = -1; |
593 | break; | |
594 | } | |
595 | } | |
596 | ||
597 | if (retval != 0) { | |
598 | CdromId[0] = '\0'; | |
599 | CdromLabel[0] = '\0'; | |
600 | } | |
601 | ||
5b568098 | 602 | if (tmpFile) |
603 | fclose(tmpFile); | |
ef79bbde | 604 | return retval; |
9361a5aa EC |
605 | |
606 | fail_io: | |
607 | #ifndef NDEBUG | |
608 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
609 | #endif | |
610 | fclose(tmpFile); | |
611 | return -1; | |
ef79bbde P |
612 | } |
613 | ||
614 | // STATES | |
615 | ||
496d88d4 | 616 | static void *zlib_open(const char *name, const char *mode) |
617 | { | |
618 | return gzopen(name, mode); | |
619 | } | |
620 | ||
621 | static int zlib_read(void *file, void *buf, u32 len) | |
622 | { | |
623 | return gzread(file, buf, len); | |
624 | } | |
625 | ||
626 | static int zlib_write(void *file, const void *buf, u32 len) | |
627 | { | |
628 | return gzwrite(file, buf, len); | |
629 | } | |
630 | ||
631 | static long zlib_seek(void *file, long offs, int whence) | |
632 | { | |
633 | return gzseek(file, offs, whence); | |
634 | } | |
635 | ||
636 | static void zlib_close(void *file) | |
637 | { | |
638 | gzclose(file); | |
639 | } | |
640 | ||
641 | struct PcsxSaveFuncs SaveFuncs = { | |
642 | zlib_open, zlib_read, zlib_write, zlib_seek, zlib_close | |
643 | }; | |
644 | ||
202b29d4 | 645 | static const char PcsxHeader[32] = "STv4 PCSX v" PCSX_VERSION; |
ef79bbde P |
646 | |
647 | // Savestate Versioning! | |
648 | // If you make changes to the savestate version, please increment the value below. | |
df656dde | 649 | static const u32 SaveVersion = 0x8b410006; |
ef79bbde | 650 | |
ec92465a | 651 | #define MISC_MAGIC 0x4353494d |
652 | struct misc_save_data { | |
653 | u32 magic; | |
654 | u32 gteBusyCycle; | |
655 | u32 muldivBusyCycle; | |
656 | u32 biuReg; | |
657 | u32 biosBranchCheck; | |
658 | u32 gpuIdleAfter; | |
659 | u32 gpuSr; | |
660 | u32 frame_counter; | |
661 | int CdromFrontendId; | |
662 | }; | |
663 | ||
ef79bbde | 664 | int SaveState(const char *file) { |
ec92465a | 665 | struct misc_save_data *misc = (void *)(psxH + 0xf000); |
496d88d4 | 666 | void *f; |
ab91a058 | 667 | GPUFreeze_t *gpufP = NULL; |
668 | SPUFreezeHdr_t spufH; | |
669 | SPUFreeze_t *spufP = NULL; | |
670 | unsigned char *pMem = NULL; | |
671 | int result = -1; | |
ef79bbde | 672 | int Size; |
ef79bbde | 673 | |
ec92465a | 674 | assert(!psxRegs.branching); |
675 | assert(!psxRegs.cpuInRecursion); | |
676 | assert(!misc->magic); | |
677 | misc->magic = MISC_MAGIC; | |
678 | misc->gteBusyCycle = psxRegs.gteBusyCycle; | |
679 | misc->muldivBusyCycle = psxRegs.muldivBusyCycle; | |
680 | misc->biuReg = psxRegs.biuReg; | |
681 | misc->biosBranchCheck = psxRegs.biosBranchCheck; | |
682 | misc->gpuIdleAfter = psxRegs.gpuIdleAfter; | |
683 | misc->gpuSr = HW_GPU_STATUS; | |
684 | misc->frame_counter = frame_counter; | |
685 | misc->CdromFrontendId = CdromFrontendId; | |
686 | ||
496d88d4 | 687 | f = SaveFuncs.open(file, "wb"); |
ef79bbde P |
688 | if (f == NULL) return -1; |
689 | ||
20196899 | 690 | psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, NULL); |
6962f770 | 691 | |
496d88d4 | 692 | SaveFuncs.write(f, (void *)PcsxHeader, 32); |
693 | SaveFuncs.write(f, (void *)&SaveVersion, sizeof(u32)); | |
694 | SaveFuncs.write(f, (void *)&Config.HLE, sizeof(boolean)); | |
ef79bbde P |
695 | |
696 | pMem = (unsigned char *)malloc(128 * 96 * 3); | |
ab91a058 | 697 | if (pMem == NULL) goto cleanup; |
ef79bbde | 698 | GPU_getScreenPic(pMem); |
496d88d4 | 699 | SaveFuncs.write(f, pMem, 128 * 96 * 3); |
ef79bbde P |
700 | free(pMem); |
701 | ||
702 | if (Config.HLE) | |
703 | psxBiosFreeze(1); | |
704 | ||
496d88d4 | 705 | SaveFuncs.write(f, psxM, 0x00200000); |
706 | SaveFuncs.write(f, psxR, 0x00080000); | |
707 | SaveFuncs.write(f, psxH, 0x00010000); | |
630b122b | 708 | // only partial save of psxRegisters to maintain savestate compat |
709 | SaveFuncs.write(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); | |
ef79bbde P |
710 | |
711 | // gpu | |
712 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
ab91a058 | 713 | if (gpufP == NULL) goto cleanup; |
ef79bbde P |
714 | gpufP->ulFreezeVersion = 1; |
715 | GPU_freeze(1, gpufP); | |
496d88d4 | 716 | SaveFuncs.write(f, gpufP, sizeof(GPUFreeze_t)); |
ab91a058 | 717 | free(gpufP); gpufP = NULL; |
ef79bbde P |
718 | |
719 | // spu | |
ab91a058 | 720 | SPU_freeze(2, (SPUFreeze_t *)&spufH, psxRegs.cycle); |
721 | Size = spufH.Size; SaveFuncs.write(f, &Size, 4); | |
ef79bbde | 722 | spufP = (SPUFreeze_t *) malloc(Size); |
ab91a058 | 723 | if (spufP == NULL) goto cleanup; |
650adfd2 | 724 | SPU_freeze(1, spufP, psxRegs.cycle); |
496d88d4 | 725 | SaveFuncs.write(f, spufP, Size); |
ab91a058 | 726 | free(spufP); spufP = NULL; |
ef79bbde P |
727 | |
728 | sioFreeze(f, 1); | |
729 | cdrFreeze(f, 1); | |
730 | psxHwFreeze(f, 1); | |
731 | psxRcntFreeze(f, 1); | |
732 | mdecFreeze(f, 1); | |
03f55e6b | 733 | new_dyna_freeze(f, 1); |
bdeee1a1 | 734 | padFreeze(f, 1); |
ef79bbde | 735 | |
ab91a058 | 736 | result = 0; |
737 | cleanup: | |
ec92465a | 738 | memset(misc, 0, sizeof(*misc)); |
496d88d4 | 739 | SaveFuncs.close(f); |
ab91a058 | 740 | return result; |
ef79bbde P |
741 | } |
742 | ||
743 | int LoadState(const char *file) { | |
ec92465a | 744 | struct misc_save_data *misc = (void *)(psxH + 0xf000); |
584fc319 | 745 | u32 biosBranchCheckOld = psxRegs.biosBranchCheck; |
496d88d4 | 746 | void *f; |
ab91a058 | 747 | GPUFreeze_t *gpufP = NULL; |
748 | SPUFreeze_t *spufP = NULL; | |
ef79bbde P |
749 | int Size; |
750 | char header[32]; | |
751 | u32 version; | |
752 | boolean hle; | |
ab91a058 | 753 | int result = -1; |
ef79bbde | 754 | |
496d88d4 | 755 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
756 | if (f == NULL) return -1; |
757 | ||
496d88d4 | 758 | SaveFuncs.read(f, header, sizeof(header)); |
759 | SaveFuncs.read(f, &version, sizeof(u32)); | |
760 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 761 | |
33f56da1 | 762 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) { |
ab91a058 | 763 | SysPrintf("incompatible savestate version %x\n", version); |
764 | goto cleanup; | |
ef79bbde | 765 | } |
33f56da1 | 766 | Config.HLE = hle; |
767 | ||
768 | if (Config.HLE) | |
769 | psxBiosInit(); | |
ef79bbde | 770 | |
496d88d4 | 771 | SaveFuncs.seek(f, 128 * 96 * 3, SEEK_CUR); |
496d88d4 | 772 | SaveFuncs.read(f, psxM, 0x00200000); |
773 | SaveFuncs.read(f, psxR, 0x00080000); | |
774 | SaveFuncs.read(f, psxH, 0x00010000); | |
630b122b | 775 | SaveFuncs.read(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); |
776 | psxRegs.gteBusyCycle = psxRegs.cycle; | |
584fc319 | 777 | psxRegs.biosBranchCheck = ~0; |
8cba0a22 | 778 | psxRegs.gpuIdleAfter = psxRegs.cycle - 1; |
779 | HW_GPU_STATUS &= SWAP32(~PSXGPU_nBUSY); | |
ec92465a | 780 | if (misc->magic == MISC_MAGIC) { |
781 | psxRegs.gteBusyCycle = misc->gteBusyCycle; | |
782 | psxRegs.muldivBusyCycle = misc->muldivBusyCycle; | |
783 | psxRegs.biuReg = misc->biuReg; | |
784 | psxRegs.biosBranchCheck = misc->biosBranchCheck; | |
785 | psxRegs.gpuIdleAfter = misc->gpuIdleAfter; | |
786 | HW_GPU_STATUS = misc->gpuSr; | |
787 | frame_counter = misc->frame_counter; | |
788 | CdromFrontendId = misc->CdromFrontendId; | |
789 | } | |
ef79bbde | 790 | |
20196899 | 791 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); |
6962f770 | 792 | |
ef79bbde P |
793 | if (Config.HLE) |
794 | psxBiosFreeze(0); | |
795 | ||
796 | // gpu | |
797 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
ab91a058 | 798 | if (gpufP == NULL) goto cleanup; |
496d88d4 | 799 | SaveFuncs.read(f, gpufP, sizeof(GPUFreeze_t)); |
ef79bbde P |
800 | GPU_freeze(0, gpufP); |
801 | free(gpufP); | |
8cba0a22 | 802 | gpuSyncPluginSR(); |
ef79bbde P |
803 | |
804 | // spu | |
496d88d4 | 805 | SaveFuncs.read(f, &Size, 4); |
ef79bbde | 806 | spufP = (SPUFreeze_t *)malloc(Size); |
ab91a058 | 807 | if (spufP == NULL) goto cleanup; |
496d88d4 | 808 | SaveFuncs.read(f, spufP, Size); |
650adfd2 | 809 | SPU_freeze(0, spufP, psxRegs.cycle); |
ef79bbde P |
810 | free(spufP); |
811 | ||
812 | sioFreeze(f, 0); | |
813 | cdrFreeze(f, 0); | |
814 | psxHwFreeze(f, 0); | |
815 | psxRcntFreeze(f, 0); | |
816 | mdecFreeze(f, 0); | |
03f55e6b | 817 | new_dyna_freeze(f, 0); |
bdeee1a1 | 818 | padFreeze(f, 0); |
ef79bbde | 819 | |
c6a249e3 | 820 | events_restore(); |
584fc319 | 821 | if (Config.HLE) |
403a6290 | 822 | psxBiosCheckExe(biosBranchCheckOld, 0x60, 1); |
584fc319 | 823 | |
ab91a058 | 824 | result = 0; |
825 | cleanup: | |
ec92465a | 826 | memset(misc, 0, sizeof(*misc)); |
496d88d4 | 827 | SaveFuncs.close(f); |
ab91a058 | 828 | return result; |
ef79bbde P |
829 | } |
830 | ||
831 | int CheckState(const char *file) { | |
496d88d4 | 832 | void *f; |
ef79bbde P |
833 | char header[32]; |
834 | u32 version; | |
835 | boolean hle; | |
836 | ||
496d88d4 | 837 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
838 | if (f == NULL) return -1; |
839 | ||
496d88d4 | 840 | SaveFuncs.read(f, header, sizeof(header)); |
841 | SaveFuncs.read(f, &version, sizeof(u32)); | |
842 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 843 | |
496d88d4 | 844 | SaveFuncs.close(f); |
ef79bbde | 845 | |
33f56da1 | 846 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) |
ef79bbde P |
847 | return -1; |
848 | ||
849 | return 0; | |
850 | } | |
851 | ||
852 | // NET Function Helpers | |
853 | ||
854 | int SendPcsxInfo() { | |
855 | if (NET_recvData == NULL || NET_sendData == NULL) | |
856 | return 0; | |
857 | ||
840639a5 | 858 | boolean Sio_old = 0; |
859 | boolean SpuIrq_old = 0; | |
860 | boolean RCntFix_old = 0; | |
ef79bbde | 861 | NET_sendData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); |
840639a5 | 862 | NET_sendData(&Sio_old, sizeof(Sio_old), PSE_NET_BLOCKING); |
863 | NET_sendData(&SpuIrq_old, sizeof(SpuIrq_old), PSE_NET_BLOCKING); | |
864 | NET_sendData(&RCntFix_old, sizeof(RCntFix_old), PSE_NET_BLOCKING); | |
ef79bbde P |
865 | NET_sendData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); |
866 | NET_sendData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
867 | ||
868 | return 0; | |
869 | } | |
870 | ||
871 | int RecvPcsxInfo() { | |
872 | int tmp; | |
873 | ||
874 | if (NET_recvData == NULL || NET_sendData == NULL) | |
875 | return 0; | |
876 | ||
840639a5 | 877 | boolean Sio_old = 0; |
878 | boolean SpuIrq_old = 0; | |
879 | boolean RCntFix_old = 0; | |
ef79bbde | 880 | NET_recvData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); |
840639a5 | 881 | NET_recvData(&Sio_old, sizeof(Sio_old), PSE_NET_BLOCKING); |
882 | NET_recvData(&SpuIrq_old, sizeof(SpuIrq_old), PSE_NET_BLOCKING); | |
883 | NET_recvData(&RCntFix_old, sizeof(RCntFix_old), PSE_NET_BLOCKING); | |
ef79bbde P |
884 | NET_recvData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); |
885 | ||
ef79bbde P |
886 | tmp = Config.Cpu; |
887 | NET_recvData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
888 | if (tmp != Config.Cpu) { | |
889 | psxCpu->Shutdown(); | |
630b122b | 890 | #ifndef DRC_DISABLE |
ef79bbde P |
891 | if (Config.Cpu == CPU_INTERPRETER) psxCpu = &psxInt; |
892 | else psxCpu = &psxRec; | |
893 | #else | |
894 | psxCpu = &psxInt; | |
895 | #endif | |
896 | if (psxCpu->Init() == -1) { | |
897 | SysClose(); return -1; | |
898 | } | |
899 | psxCpu->Reset(); | |
20196899 | 900 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); |
ef79bbde P |
901 | } |
902 | ||
903 | return 0; | |
904 | } | |
905 | ||
906 | // remove the leading and trailing spaces in a string | |
907 | void trim(char *str) { | |
908 | int pos = 0; | |
909 | char *dest = str; | |
910 | ||
911 | // skip leading blanks | |
912 | while (str[pos] <= ' ' && str[pos] > 0) | |
913 | pos++; | |
914 | ||
915 | while (str[pos]) { | |
916 | *(dest++) = str[pos]; | |
917 | pos++; | |
918 | } | |
919 | ||
920 | *(dest--) = '\0'; // store the null | |
921 | ||
922 | // remove trailing blanks | |
923 | while (dest >= str && *dest <= ' ' && *dest > 0) | |
924 | *(dest--) = '\0'; | |
925 | } | |
926 | ||
927 | // lookup table for crc calculation | |
928 | static unsigned short crctab[256] = { | |
929 | 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108, | |
930 | 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210, | |
931 | 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B, | |
932 | 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401, | |
933 | 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, | |
934 | 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, | |
935 | 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, | |
936 | 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, | |
937 | 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5, | |
938 | 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC, | |
939 | 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4, | |
940 | 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, | |
941 | 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, | |
942 | 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, | |
943 | 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, | |
944 | 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, | |
945 | 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1, | |
946 | 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB, | |
947 | 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0, | |
948 | 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8, | |
949 | 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, | |
950 | 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, | |
951 | 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, | |
952 | 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, | |
953 | 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E, | |
954 | 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07, | |
955 | 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D, | |
956 | 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74, | |
957 | 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 | |
958 | }; | |
959 | ||
960 | u16 calcCrc(u8 *d, int len) { | |
961 | u16 crc = 0; | |
962 | int i; | |
963 | ||
964 | for (i = 0; i < len; i++) { | |
965 | crc = crctab[(crc >> 8) ^ d[i]] ^ (crc << 8); | |
966 | } | |
967 | ||
968 | return ~crc; | |
969 | } |