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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 | ||
81dbbf4c | 24 | #include <stddef.h> |
dc3178e9 | 25 | #include <errno.h> |
7b75929b | 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" |
de74f599 | 32 | #include "psxbios.h" |
eedfe806 | 33 | #include "database.h" |
496d88d4 | 34 | #include <zlib.h> |
ef79bbde P |
35 | |
36 | char CdromId[10] = ""; | |
37 | char CdromLabel[33] = ""; | |
6a131b03 | 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 | ||
1c654475 | 62 | static void mmssdd( char *b, char *p ) |
ef79bbde P |
63 | { |
64 | int m, s, d; | |
1c654475 | 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; | |
7a8d521f | 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() \ | |
415213c9 | 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 | |
0a50313e | 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 | ||
6d75addf | 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; | |
14b3bd95 | 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; | |
6d75addf | 162 | |
163 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); | |
164 | } | |
165 | ||
02b1a085 | 166 | int BiosBootBypass() { |
167 | struct CdrStat stat = { 0, 0, }; | |
7b75929b | 168 | assert(psxRegs.pc == 0x80030000); |
169 | ||
02b1a085 | 170 | // no bypass if the lid is open |
171 | CDR__getStatus(&stat); | |
172 | if (stat.Status & 0x10) | |
173 | return 0; | |
174 | ||
7b75929b | 175 | // skip BIOS logos and region check |
176 | psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, NULL); | |
177 | psxRegs.pc = psxRegs.GPR.n.ra; | |
02b1a085 | 178 | return 1; |
7b75929b | 179 | } |
180 | ||
dc4fa8bc | 181 | static void getFromCnf(char *buf, const char *key, u32 *val) |
182 | { | |
183 | buf = strstr(buf, key); | |
184 | if (buf) | |
185 | buf = strchr(buf, '='); | |
dc3178e9 | 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 | } | |
dc4fa8bc | 193 | } |
194 | ||
ef79bbde | 195 | int LoadCdrom() { |
de74f599 | 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]; |
dc4fa8bc | 204 | u32 cnf_tcb = 4; |
205 | u32 cnf_event = 16; | |
206 | u32 cnf_stack = 0; | |
de74f599 | 207 | u32 t_addr; |
208 | u32 t_size; | |
dc4fa8bc | 209 | u32 sp = 0; |
de74f599 | 210 | int i, ret; |
ef79bbde | 211 | |
7b75929b | 212 | if (!Config.HLE) { |
da65071f | 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 | |
7a8d521f | 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; | |
7b75929b | 234 | strcpy(exename, "PSX.EXE;1"); |
ef79bbde P |
235 | |
236 | READTRACK(); | |
237 | } | |
238 | else { | |
239 | // read the SYSTEM.CNF | |
240 | READTRACK(); | |
dc4fa8bc | 241 | buf[1023] = 0; |
ef79bbde | 242 | |
dc4fa8bc | 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 | } | |
dc4fa8bc | 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) | |
5c8119b8 | 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)); | |
de74f599 | 273 | for (i = 2; i < sizeof(tmpHead.d) / sizeof(tmpHead.d[0]); i++) |
274 | tmpHead.d[i] = SWAP32(tmpHead.d[i]); | |
ef79bbde | 275 | |
de74f599 | 276 | SysPrintf("manual booting '%s' pc=%x\n", exename, tmpHead.h.pc0); |
277 | sp = tmpHead.h.s_addr; | |
dc4fa8bc | 278 | if (cnf_stack) |
279 | sp = cnf_stack; | |
de74f599 | 280 | SetBootRegs(tmpHead.h.pc0, tmpHead.h.gp0, sp); |
ebe6ff2b | 281 | |
ef79bbde | 282 | // Read the rest of the main executable |
de74f599 | 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 | ||
7a8d521f | 289 | if (ptr != INVALID_PTR) memcpy(ptr, buf+12, 2048); |
ef79bbde | 290 | |
de74f599 | 291 | t_addr += 2048; |
292 | t_size -= 2048; | |
ef79bbde P |
293 | } |
294 | ||
de74f599 | 295 | psxCpu->Clear(tmpHead.h.t_addr, tmpHead.h.t_size / 4); |
296 | //psxCpu->Reset(); | |
297 | ||
298 | if (Config.HLE) | |
b34d6a80 | 299 | psxBiosCheckExe(tmpHead.h.t_addr, tmpHead.h.t_size, 0); |
de74f599 | 300 | |
ef79bbde P |
301 | return 0; |
302 | } | |
303 | ||
1dc68512 | 304 | int LoadCdromFile(const char *filename, EXE_HEADER *head, u8 *time_bcd_out) { |
ef79bbde P |
305 | struct iso_directory_record *dir; |
306 | u8 time[4],*buf; | |
305c8c93 | 307 | u8 mdir[4096]; |
308 | char exename[256]; | |
457a46ec | 309 | const char *p1, *p2; |
ef79bbde | 310 | u32 size, addr; |
305c8c93 | 311 | void *mem; |
ef79bbde | 312 | |
86c70511 | 313 | if (filename == INVALID_PTR) |
314 | return -1; | |
315 | ||
457a46ec | 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 | |
7a8d521f | 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(); | |
1dc68512 | 337 | incTime(); |
ef79bbde P |
338 | |
339 | memcpy(head, buf + 12, sizeof(EXE_HEADER)); | |
86c70511 | 340 | size = SWAP32(head->t_size); |
341 | addr = SWAP32(head->t_addr); | |
ef79bbde | 342 | |
ebe6ff2b | 343 | psxCpu->Clear(addr, size / 4); |
86c70511 | 344 | //psxCpu->Reset(); |
ebe6ff2b | 345 | |
346 | while (size & ~2047) { | |
ef79bbde | 347 | READTRACK(); |
1dc68512 | 348 | incTime(); |
ef79bbde | 349 | |
305c8c93 | 350 | mem = PSXM(addr); |
7a8d521f | 351 | if (mem != INVALID_PTR) |
305c8c93 | 352 | memcpy(mem, buf + 12, 2048); |
ef79bbde P |
353 | |
354 | size -= 2048; | |
355 | addr += 2048; | |
356 | } | |
1dc68512 | 357 | if (time_bcd_out) |
358 | memcpy(time_bcd_out, time, 3); | |
ef79bbde P |
359 | |
360 | return 0; | |
361 | } | |
362 | ||
363 | int CheckCdrom() { | |
364 | struct iso_directory_record *dir; | |
1f6c92b8 | 365 | struct CdrStat stat = { 0, 0, }; |
305c8c93 | 366 | unsigned char time[4]; |
367 | char *buf; | |
ef79bbde P |
368 | unsigned char mdir[4096]; |
369 | char exename[256]; | |
e06ee7f4 | 370 | int i, len, c; |
ef79bbde P |
371 | |
372 | FreePPFCache(); | |
1f6c92b8 | 373 | memset(CdromLabel, 0, sizeof(CdromLabel)); |
374 | memset(CdromId, 0, sizeof(CdromId)); | |
375 | memset(exename, 0, sizeof(exename)); | |
ef79bbde P |
376 | |
377 | time[0] = itob(0); | |
378 | time[1] = itob(2); | |
379 | time[2] = itob(0x10); | |
380 | ||
1f6c92b8 | 381 | if (!Config.HLE && Config.SlowBoot) { |
0aa7361c | 382 | // boot to BIOS in case of CDDA or lid is open |
1f6c92b8 | 383 | CDR_getStatus(&stat); |
384 | if ((stat.Status & 0x10) || stat.Type == 2 || !CDR_readTrack(time)) | |
385 | return 0; | |
386 | } | |
ef79bbde P |
387 | READTRACK(); |
388 | ||
ef79bbde P |
389 | strncpy(CdromLabel, buf + 52, 32); |
390 | ||
391 | // skip head and sub, and go to the root directory record | |
7a8d521f | 392 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
ef79bbde P |
393 | |
394 | mmssdd(dir->extent, (char *)time); | |
395 | ||
396 | READDIR(mdir); | |
397 | ||
398 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) { | |
399 | READTRACK(); | |
400 | ||
9a9bcd78 | 401 | sscanf(buf + 12, "BOOT = cdrom:\\%255s", exename); |
ef79bbde | 402 | if (GetCdromFile(mdir, time, exename) == -1) { |
9a9bcd78 | 403 | sscanf(buf + 12, "BOOT = cdrom:%255s", exename); |
ef79bbde P |
404 | if (GetCdromFile(mdir, time, exename) == -1) { |
405 | char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir | |
406 | if (ptr != NULL) { | |
407 | ptr += 6; | |
408 | while (*ptr == '\\' || *ptr == '/') ptr++; | |
409 | strncpy(exename, ptr, 255); | |
410 | exename[255] = '\0'; | |
411 | ptr = exename; | |
412 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; | |
413 | *ptr = '\0'; | |
414 | if (GetCdromFile(mdir, time, exename) == -1) | |
415 | return -1; // main executable not found | |
416 | } else | |
417 | return -1; | |
418 | } | |
419 | } | |
7a8d521f | 420 | /* Workaround for Wild Arms EU/US which has non-standard string causing incorrect region detection */ |
421 | if (exename[0] == 'E' && exename[1] == 'X' && exename[2] == 'E' && exename[3] == '\\') { | |
422 | size_t offset = 4; | |
423 | size_t i, len = strlen(exename) - offset; | |
424 | for (i = 0; i < len; i++) | |
425 | exename[i] = exename[i + offset]; | |
426 | exename[i] = '\0'; | |
427 | } | |
ef79bbde P |
428 | } else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) { |
429 | strcpy(exename, "PSX.EXE;1"); | |
430 | strcpy(CdromId, "SLUS99999"); | |
431 | } else | |
432 | return -1; // SYSTEM.CNF and PSX.EXE not found | |
433 | ||
434 | if (CdromId[0] == '\0') { | |
e06ee7f4 | 435 | len = strlen(exename); |
436 | c = 0; | |
437 | for (i = 0; i < len; ++i) { | |
438 | if (exename[i] == ';' || c >= sizeof(CdromId) - 1) | |
439 | break; | |
440 | if (isalnum(exename[i])) | |
441 | CdromId[c++] = exename[i]; | |
ef79bbde P |
442 | } |
443 | } | |
444 | ||
0e2e3f49 | 445 | if (CdromId[0] == '\0') |
446 | strcpy(CdromId, "SLUS99999"); | |
447 | ||
ef79bbde | 448 | if (Config.PsxAuto) { // autodetect system (pal or ntsc) |
40337130 | 449 | if ( |
450 | /* Make sure Wild Arms SCUS-94608 is not detected as a PAL game. */ | |
451 | ((CdromId[0] == 's' || CdromId[0] == 'S') && (CdromId[2] == 'e' || CdromId[2] == 'E')) || | |
452 | !strncmp(CdromId, "DTLS3035", 8) || | |
453 | !strncmp(CdromId, "PBPX95001", 9) || // according to redump.org, these PAL | |
454 | !strncmp(CdromId, "PBPX95007", 9) || // discs have a non-standard ID; | |
455 | !strncmp(CdromId, "PBPX95008", 9)) // add more serials if they are discovered. | |
ef79bbde P |
456 | Config.PsxType = PSX_TYPE_PAL; // pal |
457 | else Config.PsxType = PSX_TYPE_NTSC; // ntsc | |
458 | } | |
459 | ||
460 | if (CdromLabel[0] == ' ') { | |
461 | strncpy(CdromLabel, CdromId, 9); | |
462 | } | |
463 | SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel); | |
464 | SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId); | |
e06ee7f4 | 465 | SysPrintf(_("CD-ROM EXE Name: %.255s\n"), exename); |
eedfe806 | 466 | |
467 | Apply_Hacks_Cdrom(); | |
ef79bbde | 468 | |
e1fbc1a8 | 469 | BuildPPFCache(NULL); |
ef79bbde P |
470 | |
471 | return 0; | |
472 | } | |
473 | ||
474 | static int PSXGetFileType(FILE *f) { | |
475 | unsigned long current; | |
476 | u8 mybuf[2048]; | |
477 | EXE_HEADER *exe_hdr; | |
478 | FILHDR *coff_hdr; | |
479 | ||
480 | current = ftell(f); | |
481 | fseek(f, 0L, SEEK_SET); | |
7a8d521f | 482 | if (fread(&mybuf, 1, sizeof(mybuf), f) != sizeof(mybuf)) |
483 | goto io_fail; | |
484 | ||
ef79bbde P |
485 | fseek(f, current, SEEK_SET); |
486 | ||
487 | exe_hdr = (EXE_HEADER *)mybuf; | |
488 | if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0) | |
489 | return PSX_EXE; | |
490 | ||
491 | if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E') | |
492 | return CPE_EXE; | |
493 | ||
494 | coff_hdr = (FILHDR *)mybuf; | |
495 | if (SWAPu16(coff_hdr->f_magic) == 0x0162) | |
496 | return COFF_EXE; | |
497 | ||
498 | return INVALID_EXE; | |
7a8d521f | 499 | |
500 | io_fail: | |
501 | #ifndef NDEBUG | |
502 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
503 | #endif | |
504 | return INVALID_EXE; | |
ef79bbde P |
505 | } |
506 | ||
96bef96f | 507 | // temporary pandora workaround.. |
508 | // FIXME: remove | |
509 | size_t fread_to_ram(void *ptr, size_t size, size_t nmemb, FILE *stream) | |
510 | { | |
511 | void *tmp; | |
512 | size_t ret = 0; | |
7a8d521f | 513 | |
96bef96f | 514 | tmp = malloc(size * nmemb); |
515 | if (tmp) { | |
516 | ret = fread(tmp, size, nmemb, stream); | |
517 | memcpy(ptr, tmp, size * nmemb); | |
518 | free(tmp); | |
519 | } | |
520 | return ret; | |
521 | } | |
522 | ||
ef79bbde P |
523 | int Load(const char *ExePath) { |
524 | FILE *tmpFile; | |
525 | EXE_HEADER tmpHead; | |
526 | int type; | |
527 | int retval = 0; | |
528 | u8 opcode; | |
529 | u32 section_address, section_size; | |
ebe6ff2b | 530 | void *mem; |
ef79bbde | 531 | |
7a8d521f | 532 | strcpy(CdromId, "SLUS99999"); |
533 | strcpy(CdromLabel, "SLUS_999.99"); | |
ef79bbde P |
534 | |
535 | tmpFile = fopen(ExePath, "rb"); | |
536 | if (tmpFile == NULL) { | |
537 | SysPrintf(_("Error opening file: %s.\n"), ExePath); | |
538 | retval = -1; | |
539 | } else { | |
540 | type = PSXGetFileType(tmpFile); | |
541 | switch (type) { | |
542 | case PSX_EXE: | |
7a8d521f | 543 | if (fread(&tmpHead, 1, sizeof(EXE_HEADER), tmpFile) != sizeof(EXE_HEADER)) |
544 | goto fail_io; | |
ebe6ff2b | 545 | section_address = SWAP32(tmpHead.t_addr); |
546 | section_size = SWAP32(tmpHead.t_size); | |
547 | mem = PSXM(section_address); | |
7a8d521f | 548 | if (mem != INVALID_PTR) { |
549 | fseek(tmpFile, 0x800, SEEK_SET); | |
96bef96f | 550 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 551 | psxCpu->Clear(section_address, section_size / 4); |
552 | } | |
6d75addf | 553 | SetBootRegs(SWAP32(tmpHead.pc0), SWAP32(tmpHead.gp0), |
554 | SWAP32(tmpHead.s_addr)); | |
ef79bbde P |
555 | retval = 0; |
556 | break; | |
557 | case CPE_EXE: | |
558 | fseek(tmpFile, 6, SEEK_SET); /* Something tells me we should go to 4 and read the "08 00" here... */ | |
559 | do { | |
7a8d521f | 560 | if (fread(&opcode, 1, sizeof(opcode), tmpFile) != sizeof(opcode)) |
561 | goto fail_io; | |
ef79bbde P |
562 | switch (opcode) { |
563 | case 1: /* Section loading */ | |
7a8d521f | 564 | if (fread(§ion_address, 1, sizeof(section_address), tmpFile) != sizeof(section_address)) |
565 | goto fail_io; | |
566 | if (fread(§ion_size, 1, sizeof(section_size), tmpFile) != sizeof(section_size)) | |
567 | goto fail_io; | |
ef79bbde P |
568 | section_address = SWAPu32(section_address); |
569 | section_size = SWAPu32(section_size); | |
570 | #ifdef EMU_LOG | |
571 | EMU_LOG("Loading %08X bytes from %08X to %08X\n", section_size, ftell(tmpFile), section_address); | |
572 | #endif | |
ebe6ff2b | 573 | mem = PSXM(section_address); |
7a8d521f | 574 | if (mem != INVALID_PTR) { |
96bef96f | 575 | fread_to_ram(mem, section_size, 1, tmpFile); |
ebe6ff2b | 576 | psxCpu->Clear(section_address, section_size / 4); |
577 | } | |
ef79bbde P |
578 | break; |
579 | case 3: /* register loading (PC only?) */ | |
580 | fseek(tmpFile, 2, SEEK_CUR); /* unknown field */ | |
7a8d521f | 581 | if (fread(&psxRegs.pc, 1, sizeof(psxRegs.pc), tmpFile) != sizeof(psxRegs.pc)) |
582 | goto fail_io; | |
ef79bbde P |
583 | psxRegs.pc = SWAPu32(psxRegs.pc); |
584 | break; | |
585 | case 0: /* End of file */ | |
586 | break; | |
587 | default: | |
588 | SysPrintf(_("Unknown CPE opcode %02x at position %08x.\n"), opcode, ftell(tmpFile) - 1); | |
589 | retval = -1; | |
590 | break; | |
591 | } | |
592 | } while (opcode != 0 && retval == 0); | |
593 | break; | |
594 | case COFF_EXE: | |
595 | SysPrintf(_("COFF files not supported.\n")); | |
596 | retval = -1; | |
597 | break; | |
598 | case INVALID_EXE: | |
8f00f96c | 599 | SysPrintf(_("This file does not appear to be a valid PSX EXE file.\n")); |
600 | SysPrintf(_("(did you forget -cdfile ?)\n")); | |
ef79bbde P |
601 | retval = -1; |
602 | break; | |
603 | } | |
604 | } | |
605 | ||
606 | if (retval != 0) { | |
607 | CdromId[0] = '\0'; | |
608 | CdromLabel[0] = '\0'; | |
609 | } | |
610 | ||
7a8d521f | 611 | if (tmpFile) |
612 | fclose(tmpFile); | |
ef79bbde | 613 | return retval; |
7a8d521f | 614 | |
615 | fail_io: | |
616 | #ifndef NDEBUG | |
617 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); | |
618 | #endif | |
619 | fclose(tmpFile); | |
620 | return -1; | |
ef79bbde P |
621 | } |
622 | ||
623 | // STATES | |
624 | ||
496d88d4 | 625 | static void *zlib_open(const char *name, const char *mode) |
626 | { | |
627 | return gzopen(name, mode); | |
628 | } | |
629 | ||
630 | static int zlib_read(void *file, void *buf, u32 len) | |
631 | { | |
632 | return gzread(file, buf, len); | |
633 | } | |
634 | ||
635 | static int zlib_write(void *file, const void *buf, u32 len) | |
636 | { | |
637 | return gzwrite(file, buf, len); | |
638 | } | |
639 | ||
640 | static long zlib_seek(void *file, long offs, int whence) | |
641 | { | |
642 | return gzseek(file, offs, whence); | |
643 | } | |
644 | ||
645 | static void zlib_close(void *file) | |
646 | { | |
647 | gzclose(file); | |
648 | } | |
649 | ||
650 | struct PcsxSaveFuncs SaveFuncs = { | |
651 | zlib_open, zlib_read, zlib_write, zlib_seek, zlib_close | |
652 | }; | |
653 | ||
7a8d521f | 654 | static const char PcsxHeader[32] = "STv4 PCSX v" PCSX_VERSION; |
ef79bbde P |
655 | |
656 | // Savestate Versioning! | |
657 | // If you make changes to the savestate version, please increment the value below. | |
df656dde | 658 | static const u32 SaveVersion = 0x8b410006; |
ef79bbde | 659 | |
6a131b03 | 660 | #define MISC_MAGIC 0x4353494d |
661 | struct misc_save_data { | |
662 | u32 magic; | |
663 | u32 gteBusyCycle; | |
664 | u32 muldivBusyCycle; | |
665 | u32 biuReg; | |
666 | u32 biosBranchCheck; | |
667 | u32 gpuIdleAfter; | |
668 | u32 gpuSr; | |
669 | u32 frame_counter; | |
670 | int CdromFrontendId; | |
671 | }; | |
672 | ||
ef79bbde | 673 | int SaveState(const char *file) { |
6a131b03 | 674 | struct misc_save_data *misc = (void *)(psxH + 0xf000); |
496d88d4 | 675 | void *f; |
cfa5a2af | 676 | GPUFreeze_t *gpufP = NULL; |
677 | SPUFreezeHdr_t spufH; | |
678 | SPUFreeze_t *spufP = NULL; | |
679 | unsigned char *pMem = NULL; | |
680 | int result = -1; | |
ef79bbde | 681 | int Size; |
ef79bbde | 682 | |
6a131b03 | 683 | assert(!psxRegs.branching); |
684 | assert(!psxRegs.cpuInRecursion); | |
685 | assert(!misc->magic); | |
8338889c | 686 | |
687 | f = SaveFuncs.open(file, "wb"); | |
688 | if (f == NULL) return -1; | |
689 | ||
6a131b03 | 690 | misc->magic = MISC_MAGIC; |
691 | misc->gteBusyCycle = psxRegs.gteBusyCycle; | |
692 | misc->muldivBusyCycle = psxRegs.muldivBusyCycle; | |
693 | misc->biuReg = psxRegs.biuReg; | |
694 | misc->biosBranchCheck = psxRegs.biosBranchCheck; | |
695 | misc->gpuIdleAfter = psxRegs.gpuIdleAfter; | |
696 | misc->gpuSr = HW_GPU_STATUS; | |
697 | misc->frame_counter = frame_counter; | |
698 | misc->CdromFrontendId = CdromFrontendId; | |
699 | ||
980f7a58 | 700 | psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, NULL); |
52082bc1 | 701 | |
496d88d4 | 702 | SaveFuncs.write(f, (void *)PcsxHeader, 32); |
703 | SaveFuncs.write(f, (void *)&SaveVersion, sizeof(u32)); | |
704 | SaveFuncs.write(f, (void *)&Config.HLE, sizeof(boolean)); | |
ef79bbde P |
705 | |
706 | pMem = (unsigned char *)malloc(128 * 96 * 3); | |
cfa5a2af | 707 | if (pMem == NULL) goto cleanup; |
ef79bbde | 708 | GPU_getScreenPic(pMem); |
496d88d4 | 709 | SaveFuncs.write(f, pMem, 128 * 96 * 3); |
ef79bbde P |
710 | free(pMem); |
711 | ||
712 | if (Config.HLE) | |
713 | psxBiosFreeze(1); | |
714 | ||
496d88d4 | 715 | SaveFuncs.write(f, psxM, 0x00200000); |
716 | SaveFuncs.write(f, psxR, 0x00080000); | |
717 | SaveFuncs.write(f, psxH, 0x00010000); | |
81dbbf4c | 718 | // only partial save of psxRegisters to maintain savestate compat |
719 | SaveFuncs.write(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); | |
ef79bbde P |
720 | |
721 | // gpu | |
722 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
cfa5a2af | 723 | if (gpufP == NULL) goto cleanup; |
ef79bbde P |
724 | gpufP->ulFreezeVersion = 1; |
725 | GPU_freeze(1, gpufP); | |
496d88d4 | 726 | SaveFuncs.write(f, gpufP, sizeof(GPUFreeze_t)); |
cfa5a2af | 727 | free(gpufP); gpufP = NULL; |
ef79bbde P |
728 | |
729 | // spu | |
cfa5a2af | 730 | SPU_freeze(2, (SPUFreeze_t *)&spufH, psxRegs.cycle); |
731 | Size = spufH.Size; SaveFuncs.write(f, &Size, 4); | |
ef79bbde | 732 | spufP = (SPUFreeze_t *) malloc(Size); |
cfa5a2af | 733 | if (spufP == NULL) goto cleanup; |
650adfd2 | 734 | SPU_freeze(1, spufP, psxRegs.cycle); |
496d88d4 | 735 | SaveFuncs.write(f, spufP, Size); |
cfa5a2af | 736 | free(spufP); spufP = NULL; |
ef79bbde P |
737 | |
738 | sioFreeze(f, 1); | |
739 | cdrFreeze(f, 1); | |
740 | psxHwFreeze(f, 1); | |
741 | psxRcntFreeze(f, 1); | |
742 | mdecFreeze(f, 1); | |
03f55e6b | 743 | new_dyna_freeze(f, 1); |
3faf5c23 | 744 | padFreeze(f, 1); |
ef79bbde | 745 | |
cfa5a2af | 746 | result = 0; |
747 | cleanup: | |
6a131b03 | 748 | memset(misc, 0, sizeof(*misc)); |
496d88d4 | 749 | SaveFuncs.close(f); |
cfa5a2af | 750 | return result; |
ef79bbde P |
751 | } |
752 | ||
753 | int LoadState(const char *file) { | |
6a131b03 | 754 | struct misc_save_data *misc = (void *)(psxH + 0xf000); |
de74f599 | 755 | u32 biosBranchCheckOld = psxRegs.biosBranchCheck; |
496d88d4 | 756 | void *f; |
cfa5a2af | 757 | GPUFreeze_t *gpufP = NULL; |
758 | SPUFreeze_t *spufP = NULL; | |
ef79bbde P |
759 | int Size; |
760 | char header[32]; | |
761 | u32 version; | |
762 | boolean hle; | |
cfa5a2af | 763 | int result = -1; |
ef79bbde | 764 | |
496d88d4 | 765 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
766 | if (f == NULL) return -1; |
767 | ||
496d88d4 | 768 | SaveFuncs.read(f, header, sizeof(header)); |
769 | SaveFuncs.read(f, &version, sizeof(u32)); | |
770 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 771 | |
33f56da1 | 772 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) { |
cfa5a2af | 773 | SysPrintf("incompatible savestate version %x\n", version); |
774 | goto cleanup; | |
ef79bbde | 775 | } |
33f56da1 | 776 | Config.HLE = hle; |
777 | ||
778 | if (Config.HLE) | |
779 | psxBiosInit(); | |
ef79bbde | 780 | |
496d88d4 | 781 | SaveFuncs.seek(f, 128 * 96 * 3, SEEK_CUR); |
496d88d4 | 782 | SaveFuncs.read(f, psxM, 0x00200000); |
783 | SaveFuncs.read(f, psxR, 0x00080000); | |
784 | SaveFuncs.read(f, psxH, 0x00010000); | |
81dbbf4c | 785 | SaveFuncs.read(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); |
786 | psxRegs.gteBusyCycle = psxRegs.cycle; | |
de74f599 | 787 | psxRegs.biosBranchCheck = ~0; |
f8896d18 | 788 | psxRegs.gpuIdleAfter = psxRegs.cycle - 1; |
789 | HW_GPU_STATUS &= SWAP32(~PSXGPU_nBUSY); | |
6a131b03 | 790 | if (misc->magic == MISC_MAGIC) { |
791 | psxRegs.gteBusyCycle = misc->gteBusyCycle; | |
792 | psxRegs.muldivBusyCycle = misc->muldivBusyCycle; | |
793 | psxRegs.biuReg = misc->biuReg; | |
794 | psxRegs.biosBranchCheck = misc->biosBranchCheck; | |
795 | psxRegs.gpuIdleAfter = misc->gpuIdleAfter; | |
796 | HW_GPU_STATUS = misc->gpuSr; | |
797 | frame_counter = misc->frame_counter; | |
798 | CdromFrontendId = misc->CdromFrontendId; | |
799 | } | |
ef79bbde | 800 | |
980f7a58 | 801 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); |
802 | ||
ef79bbde P |
803 | if (Config.HLE) |
804 | psxBiosFreeze(0); | |
805 | ||
806 | // gpu | |
807 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); | |
cfa5a2af | 808 | if (gpufP == NULL) goto cleanup; |
496d88d4 | 809 | SaveFuncs.read(f, gpufP, sizeof(GPUFreeze_t)); |
ef79bbde P |
810 | GPU_freeze(0, gpufP); |
811 | free(gpufP); | |
f8896d18 | 812 | gpuSyncPluginSR(); |
ef79bbde P |
813 | |
814 | // spu | |
496d88d4 | 815 | SaveFuncs.read(f, &Size, 4); |
ef79bbde | 816 | spufP = (SPUFreeze_t *)malloc(Size); |
cfa5a2af | 817 | if (spufP == NULL) goto cleanup; |
496d88d4 | 818 | SaveFuncs.read(f, spufP, Size); |
650adfd2 | 819 | SPU_freeze(0, spufP, psxRegs.cycle); |
ef79bbde P |
820 | free(spufP); |
821 | ||
822 | sioFreeze(f, 0); | |
823 | cdrFreeze(f, 0); | |
824 | psxHwFreeze(f, 0); | |
825 | psxRcntFreeze(f, 0); | |
826 | mdecFreeze(f, 0); | |
03f55e6b | 827 | new_dyna_freeze(f, 0); |
3faf5c23 | 828 | padFreeze(f, 0); |
ef79bbde | 829 | |
9a0a61d2 | 830 | events_restore(); |
de74f599 | 831 | if (Config.HLE) |
b34d6a80 | 832 | psxBiosCheckExe(biosBranchCheckOld, 0x60, 1); |
de74f599 | 833 | |
cfa5a2af | 834 | result = 0; |
835 | cleanup: | |
6a131b03 | 836 | memset(misc, 0, sizeof(*misc)); |
496d88d4 | 837 | SaveFuncs.close(f); |
cfa5a2af | 838 | return result; |
ef79bbde P |
839 | } |
840 | ||
841 | int CheckState(const char *file) { | |
496d88d4 | 842 | void *f; |
ef79bbde P |
843 | char header[32]; |
844 | u32 version; | |
845 | boolean hle; | |
846 | ||
496d88d4 | 847 | f = SaveFuncs.open(file, "rb"); |
ef79bbde P |
848 | if (f == NULL) return -1; |
849 | ||
496d88d4 | 850 | SaveFuncs.read(f, header, sizeof(header)); |
851 | SaveFuncs.read(f, &version, sizeof(u32)); | |
852 | SaveFuncs.read(f, &hle, sizeof(boolean)); | |
ef79bbde | 853 | |
496d88d4 | 854 | SaveFuncs.close(f); |
ef79bbde | 855 | |
33f56da1 | 856 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) |
ef79bbde P |
857 | return -1; |
858 | ||
859 | return 0; | |
860 | } | |
861 | ||
862 | // NET Function Helpers | |
863 | ||
864 | int SendPcsxInfo() { | |
865 | if (NET_recvData == NULL || NET_sendData == NULL) | |
866 | return 0; | |
867 | ||
d014a471 | 868 | boolean Sio_old = 0; |
869 | boolean SpuIrq_old = 0; | |
870 | boolean RCntFix_old = 0; | |
ef79bbde | 871 | NET_sendData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); |
d014a471 | 872 | NET_sendData(&Sio_old, sizeof(Sio_old), PSE_NET_BLOCKING); |
873 | NET_sendData(&SpuIrq_old, sizeof(SpuIrq_old), PSE_NET_BLOCKING); | |
874 | NET_sendData(&RCntFix_old, sizeof(RCntFix_old), PSE_NET_BLOCKING); | |
ef79bbde P |
875 | NET_sendData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); |
876 | NET_sendData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
877 | ||
878 | return 0; | |
879 | } | |
880 | ||
881 | int RecvPcsxInfo() { | |
882 | int tmp; | |
883 | ||
884 | if (NET_recvData == NULL || NET_sendData == NULL) | |
885 | return 0; | |
886 | ||
d014a471 | 887 | boolean Sio_old = 0; |
888 | boolean SpuIrq_old = 0; | |
889 | boolean RCntFix_old = 0; | |
ef79bbde | 890 | NET_recvData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); |
d014a471 | 891 | NET_recvData(&Sio_old, sizeof(Sio_old), PSE_NET_BLOCKING); |
892 | NET_recvData(&SpuIrq_old, sizeof(SpuIrq_old), PSE_NET_BLOCKING); | |
893 | NET_recvData(&RCntFix_old, sizeof(RCntFix_old), PSE_NET_BLOCKING); | |
ef79bbde P |
894 | NET_recvData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); |
895 | ||
ef79bbde P |
896 | tmp = Config.Cpu; |
897 | NET_recvData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); | |
898 | if (tmp != Config.Cpu) { | |
899 | psxCpu->Shutdown(); | |
41e82ad4 | 900 | #ifndef DRC_DISABLE |
ef79bbde P |
901 | if (Config.Cpu == CPU_INTERPRETER) psxCpu = &psxInt; |
902 | else psxCpu = &psxRec; | |
903 | #else | |
904 | psxCpu = &psxInt; | |
905 | #endif | |
906 | if (psxCpu->Init() == -1) { | |
907 | SysClose(); return -1; | |
908 | } | |
909 | psxCpu->Reset(); | |
980f7a58 | 910 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); |
ef79bbde P |
911 | } |
912 | ||
913 | return 0; | |
914 | } | |
915 | ||
916 | // remove the leading and trailing spaces in a string | |
917 | void trim(char *str) { | |
918 | int pos = 0; | |
919 | char *dest = str; | |
920 | ||
921 | // skip leading blanks | |
922 | while (str[pos] <= ' ' && str[pos] > 0) | |
923 | pos++; | |
924 | ||
925 | while (str[pos]) { | |
926 | *(dest++) = str[pos]; | |
927 | pos++; | |
928 | } | |
929 | ||
930 | *(dest--) = '\0'; // store the null | |
931 | ||
932 | // remove trailing blanks | |
933 | while (dest >= str && *dest <= ' ' && *dest > 0) | |
934 | *(dest--) = '\0'; | |
935 | } | |
936 | ||
937 | // lookup table for crc calculation | |
938 | static unsigned short crctab[256] = { | |
939 | 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108, | |
940 | 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210, | |
941 | 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B, | |
942 | 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401, | |
943 | 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, | |
944 | 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, | |
945 | 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, | |
946 | 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, | |
947 | 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5, | |
948 | 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC, | |
949 | 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4, | |
950 | 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, | |
951 | 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, | |
952 | 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, | |
953 | 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, | |
954 | 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, | |
955 | 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1, | |
956 | 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB, | |
957 | 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0, | |
958 | 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8, | |
959 | 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, | |
960 | 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, | |
961 | 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, | |
962 | 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, | |
963 | 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E, | |
964 | 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07, | |
965 | 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D, | |
966 | 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74, | |
967 | 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 | |
968 | }; | |
969 | ||
970 | u16 calcCrc(u8 *d, int len) { | |
971 | u16 crc = 0; | |
972 | int i; | |
973 | ||
974 | for (i = 0; i < len; i++) { | |
975 | crc = crctab[(crc >> 8) ^ d[i]] ^ (crc << 8); | |
976 | } | |
977 | ||
978 | return ~crc; | |
979 | } |