| | 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 | |
| | 24 | #include <stddef.h> |
| | 25 | #include <errno.h> |
| | 26 | #include <assert.h> |
| | 27 | #include "misc.h" |
| | 28 | #include "cdrom.h" |
| | 29 | #include "mdec.h" |
| | 30 | #include "gpu.h" |
| | 31 | #include "ppf.h" |
| | 32 | #include "psxbios.h" |
| | 33 | #include "database.h" |
| | 34 | #include <zlib.h> |
| | 35 | |
| | 36 | char CdromId[10] = ""; |
| | 37 | char CdromLabel[33] = ""; |
| | 38 | int CdromFrontendId; // for frontend use |
| | 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 | |
| | 62 | static void mmssdd( char *b, char *p ) |
| | 63 | { |
| | 64 | int m, s, d; |
| | 65 | unsigned char *ub = (void *)b; |
| | 66 | int block = (ub[3] << 24) | (ub[2] << 16) | (ub[1] << 8) | ub[0]; |
| | 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; |
| | 76 | d = ((d / 10) << 4) | d % 10; |
| | 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() \ |
| | 97 | if (!CDR_readTrack(time)) return -1; \ |
| | 98 | buf = (void *)CDR_getBuffer(); \ |
| | 99 | if (buf == NULL) return -1; \ |
| | 100 | else CheckPPFCache((u8 *)buf, time[0], time[1], time[2]); |
| | 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 | |
| | 110 | int GetCdromFile(u8 *mdir, u8 *time, char *filename) { |
| | 111 | struct iso_directory_record *dir; |
| | 112 | int retval = -1; |
| | 113 | u8 ddir[4096]; |
| | 114 | u8 *buf; |
| | 115 | int i; |
| | 116 | |
| | 117 | // only try to scan if a filename is given |
| | 118 | if (filename == INVALID_PTR || !strlen(filename)) return -1; |
| | 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 | } |
| | 126 | i += (u8)dir->length[0]; |
| | 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); |
| | 142 | retval = 0; |
| | 143 | break; |
| | 144 | } |
| | 145 | } |
| | 146 | } |
| | 147 | return retval; |
| | 148 | } |
| | 149 | |
| | 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; |
| | 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; |
| | 162 | |
| | 163 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); |
| | 164 | } |
| | 165 | |
| | 166 | int BiosBootBypass() { |
| | 167 | struct CdrStat stat = { 0, 0, }; |
| | 168 | assert(psxRegs.pc == 0x80030000); |
| | 169 | |
| | 170 | // no bypass if the lid is open |
| | 171 | CDR__getStatus(&stat); |
| | 172 | if (stat.Status & 0x10) |
| | 173 | return 0; |
| | 174 | |
| | 175 | // skip BIOS logos and region check |
| | 176 | psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, NULL); |
| | 177 | psxRegs.pc = psxRegs.GPR.n.ra; |
| | 178 | return 1; |
| | 179 | } |
| | 180 | |
| | 181 | static void getFromCnf(char *buf, const char *key, u32 *val) |
| | 182 | { |
| | 183 | buf = strstr(buf, key); |
| | 184 | if (buf) |
| | 185 | buf = strchr(buf, '='); |
| | 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 | } |
| | 193 | } |
| | 194 | |
| | 195 | int LoadCdrom() { |
| | 196 | union { |
| | 197 | EXE_HEADER h; |
| | 198 | u32 d[sizeof(EXE_HEADER) / sizeof(u32)]; |
| | 199 | } tmpHead; |
| | 200 | struct iso_directory_record *dir; |
| | 201 | u8 time[4], *buf; |
| | 202 | u8 mdir[4096]; |
| | 203 | char exename[256]; |
| | 204 | u32 cnf_tcb = 4; |
| | 205 | u32 cnf_event = 16; |
| | 206 | u32 cnf_stack = 0; |
| | 207 | u32 t_addr; |
| | 208 | u32 t_size; |
| | 209 | u32 sp = 0; |
| | 210 | int i, ret; |
| | 211 | |
| | 212 | if (!Config.HLE) { |
| | 213 | if (psxRegs.pc != 0x80030000) // BiosBootBypass'ed or custom BIOS? |
| | 214 | return 0; |
| | 215 | if (Config.SlowBoot) |
| | 216 | return 0; |
| | 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 |
| | 224 | dir = (struct iso_directory_record*) &buf[12+156]; |
| | 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; |
| | 234 | strcpy(exename, "PSX.EXE;1"); |
| | 235 | |
| | 236 | READTRACK(); |
| | 237 | } |
| | 238 | else { |
| | 239 | // read the SYSTEM.CNF |
| | 240 | READTRACK(); |
| | 241 | buf[1023] = 0; |
| | 242 | |
| | 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) { |
| | 247 | char *ptr = strstr((char *)buf + 12, "cdrom:"); |
| | 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 | } |
| | 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) |
| | 266 | psxBiosCnfLoaded(cnf_tcb, cnf_event, cnf_stack); |
| | 267 | |
| | 268 | // Read the EXE-Header |
| | 269 | READTRACK(); |
| | 270 | } |
| | 271 | |
| | 272 | memcpy(&tmpHead, buf + 12, sizeof(EXE_HEADER)); |
| | 273 | for (i = 2; i < sizeof(tmpHead.d) / sizeof(tmpHead.d[0]); i++) |
| | 274 | tmpHead.d[i] = SWAP32(tmpHead.d[i]); |
| | 275 | |
| | 276 | SysPrintf("manual booting '%s' pc=%x\n", exename, tmpHead.h.pc0); |
| | 277 | sp = tmpHead.h.s_addr; |
| | 278 | if (cnf_stack) |
| | 279 | sp = cnf_stack; |
| | 280 | SetBootRegs(tmpHead.h.pc0, tmpHead.h.gp0, sp); |
| | 281 | |
| | 282 | // Read the rest of the main executable |
| | 283 | for (t_addr = tmpHead.h.t_addr, t_size = tmpHead.h.t_size; t_size & ~2047; ) { |
| | 284 | void *ptr = (void *)PSXM(t_addr); |
| | 285 | |
| | 286 | incTime(); |
| | 287 | READTRACK(); |
| | 288 | |
| | 289 | if (ptr != INVALID_PTR) memcpy(ptr, buf+12, 2048); |
| | 290 | |
| | 291 | t_addr += 2048; |
| | 292 | t_size -= 2048; |
| | 293 | } |
| | 294 | |
| | 295 | psxCpu->Clear(tmpHead.h.t_addr, tmpHead.h.t_size / 4); |
| | 296 | //psxCpu->Reset(); |
| | 297 | |
| | 298 | if (Config.HLE) |
| | 299 | psxBiosCheckExe(tmpHead.h.t_addr, tmpHead.h.t_size, 0); |
| | 300 | |
| | 301 | return 0; |
| | 302 | } |
| | 303 | |
| | 304 | int LoadCdromFile(const char *filename, EXE_HEADER *head, u8 *time_bcd_out) { |
| | 305 | struct iso_directory_record *dir; |
| | 306 | u8 time[4],*buf; |
| | 307 | u8 mdir[4096]; |
| | 308 | char exename[256]; |
| | 309 | const char *p1, *p2; |
| | 310 | u32 size, addr; |
| | 311 | void *mem; |
| | 312 | |
| | 313 | if (filename == INVALID_PTR) |
| | 314 | return -1; |
| | 315 | |
| | 316 | p1 = filename; |
| | 317 | if ((p2 = strchr(p1, ':'))) |
| | 318 | p1 = p2 + 1; |
| | 319 | while (*p1 == '\\') |
| | 320 | p1++; |
| | 321 | snprintf(exename, sizeof(exename), "%s", p1); |
| | 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 |
| | 328 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
| | 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 | incTime(); |
| | 338 | |
| | 339 | memcpy(head, buf + 12, sizeof(EXE_HEADER)); |
| | 340 | size = SWAP32(head->t_size); |
| | 341 | addr = SWAP32(head->t_addr); |
| | 342 | |
| | 343 | psxCpu->Clear(addr, size / 4); |
| | 344 | //psxCpu->Reset(); |
| | 345 | |
| | 346 | while (size & ~2047) { |
| | 347 | READTRACK(); |
| | 348 | incTime(); |
| | 349 | |
| | 350 | mem = PSXM(addr); |
| | 351 | if (mem != INVALID_PTR) |
| | 352 | memcpy(mem, buf + 12, 2048); |
| | 353 | |
| | 354 | size -= 2048; |
| | 355 | addr += 2048; |
| | 356 | } |
| | 357 | if (time_bcd_out) |
| | 358 | memcpy(time_bcd_out, time, 3); |
| | 359 | |
| | 360 | return 0; |
| | 361 | } |
| | 362 | |
| | 363 | int CheckCdrom() { |
| | 364 | struct iso_directory_record *dir; |
| | 365 | unsigned char time[4]; |
| | 366 | char *buf; |
| | 367 | unsigned char mdir[4096]; |
| | 368 | char exename[256]; |
| | 369 | int i, len, c; |
| | 370 | |
| | 371 | FreePPFCache(); |
| | 372 | |
| | 373 | time[0] = itob(0); |
| | 374 | time[1] = itob(2); |
| | 375 | time[2] = itob(0x10); |
| | 376 | |
| | 377 | READTRACK(); |
| | 378 | |
| | 379 | memset(CdromLabel, 0, sizeof(CdromLabel)); |
| | 380 | memset(CdromId, 0, sizeof(CdromId)); |
| | 381 | memset(exename, 0, sizeof(exename)); |
| | 382 | |
| | 383 | strncpy(CdromLabel, buf + 52, 32); |
| | 384 | |
| | 385 | // skip head and sub, and go to the root directory record |
| | 386 | dir = (struct iso_directory_record *)&buf[12 + 156]; |
| | 387 | |
| | 388 | mmssdd(dir->extent, (char *)time); |
| | 389 | |
| | 390 | READDIR(mdir); |
| | 391 | |
| | 392 | if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) { |
| | 393 | READTRACK(); |
| | 394 | |
| | 395 | sscanf(buf + 12, "BOOT = cdrom:\\%255s", exename); |
| | 396 | if (GetCdromFile(mdir, time, exename) == -1) { |
| | 397 | sscanf(buf + 12, "BOOT = cdrom:%255s", exename); |
| | 398 | if (GetCdromFile(mdir, time, exename) == -1) { |
| | 399 | char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir |
| | 400 | if (ptr != NULL) { |
| | 401 | ptr += 6; |
| | 402 | while (*ptr == '\\' || *ptr == '/') ptr++; |
| | 403 | strncpy(exename, ptr, 255); |
| | 404 | exename[255] = '\0'; |
| | 405 | ptr = exename; |
| | 406 | while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++; |
| | 407 | *ptr = '\0'; |
| | 408 | if (GetCdromFile(mdir, time, exename) == -1) |
| | 409 | return -1; // main executable not found |
| | 410 | } else |
| | 411 | return -1; |
| | 412 | } |
| | 413 | } |
| | 414 | /* Workaround for Wild Arms EU/US which has non-standard string causing incorrect region detection */ |
| | 415 | if (exename[0] == 'E' && exename[1] == 'X' && exename[2] == 'E' && exename[3] == '\\') { |
| | 416 | size_t offset = 4; |
| | 417 | size_t i, len = strlen(exename) - offset; |
| | 418 | for (i = 0; i < len; i++) |
| | 419 | exename[i] = exename[i + offset]; |
| | 420 | exename[i] = '\0'; |
| | 421 | } |
| | 422 | } else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) { |
| | 423 | strcpy(exename, "PSX.EXE;1"); |
| | 424 | strcpy(CdromId, "SLUS99999"); |
| | 425 | } else |
| | 426 | return -1; // SYSTEM.CNF and PSX.EXE not found |
| | 427 | |
| | 428 | if (CdromId[0] == '\0') { |
| | 429 | len = strlen(exename); |
| | 430 | c = 0; |
| | 431 | for (i = 0; i < len; ++i) { |
| | 432 | if (exename[i] == ';' || c >= sizeof(CdromId) - 1) |
| | 433 | break; |
| | 434 | if (isalnum(exename[i])) |
| | 435 | CdromId[c++] = exename[i]; |
| | 436 | } |
| | 437 | } |
| | 438 | |
| | 439 | if (CdromId[0] == '\0') |
| | 440 | strcpy(CdromId, "SLUS99999"); |
| | 441 | |
| | 442 | if (Config.PsxAuto) { // autodetect system (pal or ntsc) |
| | 443 | if ( |
| | 444 | /* Make sure Wild Arms SCUS-94608 is not detected as a PAL game. */ |
| | 445 | ((CdromId[0] == 's' || CdromId[0] == 'S') && (CdromId[2] == 'e' || CdromId[2] == 'E')) || |
| | 446 | !strncmp(CdromId, "DTLS3035", 8) || |
| | 447 | !strncmp(CdromId, "PBPX95001", 9) || // according to redump.org, these PAL |
| | 448 | !strncmp(CdromId, "PBPX95007", 9) || // discs have a non-standard ID; |
| | 449 | !strncmp(CdromId, "PBPX95008", 9)) // add more serials if they are discovered. |
| | 450 | Config.PsxType = PSX_TYPE_PAL; // pal |
| | 451 | else Config.PsxType = PSX_TYPE_NTSC; // ntsc |
| | 452 | } |
| | 453 | |
| | 454 | if (CdromLabel[0] == ' ') { |
| | 455 | strncpy(CdromLabel, CdromId, 9); |
| | 456 | } |
| | 457 | SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel); |
| | 458 | SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId); |
| | 459 | SysPrintf(_("CD-ROM EXE Name: %.255s\n"), exename); |
| | 460 | |
| | 461 | Apply_Hacks_Cdrom(); |
| | 462 | |
| | 463 | BuildPPFCache(); |
| | 464 | |
| | 465 | return 0; |
| | 466 | } |
| | 467 | |
| | 468 | static int PSXGetFileType(FILE *f) { |
| | 469 | unsigned long current; |
| | 470 | u8 mybuf[2048]; |
| | 471 | EXE_HEADER *exe_hdr; |
| | 472 | FILHDR *coff_hdr; |
| | 473 | |
| | 474 | current = ftell(f); |
| | 475 | fseek(f, 0L, SEEK_SET); |
| | 476 | if (fread(&mybuf, 1, sizeof(mybuf), f) != sizeof(mybuf)) |
| | 477 | goto io_fail; |
| | 478 | |
| | 479 | fseek(f, current, SEEK_SET); |
| | 480 | |
| | 481 | exe_hdr = (EXE_HEADER *)mybuf; |
| | 482 | if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0) |
| | 483 | return PSX_EXE; |
| | 484 | |
| | 485 | if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E') |
| | 486 | return CPE_EXE; |
| | 487 | |
| | 488 | coff_hdr = (FILHDR *)mybuf; |
| | 489 | if (SWAPu16(coff_hdr->f_magic) == 0x0162) |
| | 490 | return COFF_EXE; |
| | 491 | |
| | 492 | return INVALID_EXE; |
| | 493 | |
| | 494 | io_fail: |
| | 495 | #ifndef NDEBUG |
| | 496 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); |
| | 497 | #endif |
| | 498 | return INVALID_EXE; |
| | 499 | } |
| | 500 | |
| | 501 | // temporary pandora workaround.. |
| | 502 | // FIXME: remove |
| | 503 | size_t fread_to_ram(void *ptr, size_t size, size_t nmemb, FILE *stream) |
| | 504 | { |
| | 505 | void *tmp; |
| | 506 | size_t ret = 0; |
| | 507 | |
| | 508 | tmp = malloc(size * nmemb); |
| | 509 | if (tmp) { |
| | 510 | ret = fread(tmp, size, nmemb, stream); |
| | 511 | memcpy(ptr, tmp, size * nmemb); |
| | 512 | free(tmp); |
| | 513 | } |
| | 514 | return ret; |
| | 515 | } |
| | 516 | |
| | 517 | int Load(const char *ExePath) { |
| | 518 | FILE *tmpFile; |
| | 519 | EXE_HEADER tmpHead; |
| | 520 | int type; |
| | 521 | int retval = 0; |
| | 522 | u8 opcode; |
| | 523 | u32 section_address, section_size; |
| | 524 | void *mem; |
| | 525 | |
| | 526 | strcpy(CdromId, "SLUS99999"); |
| | 527 | strcpy(CdromLabel, "SLUS_999.99"); |
| | 528 | |
| | 529 | tmpFile = fopen(ExePath, "rb"); |
| | 530 | if (tmpFile == NULL) { |
| | 531 | SysPrintf(_("Error opening file: %s.\n"), ExePath); |
| | 532 | retval = -1; |
| | 533 | } else { |
| | 534 | type = PSXGetFileType(tmpFile); |
| | 535 | switch (type) { |
| | 536 | case PSX_EXE: |
| | 537 | if (fread(&tmpHead, 1, sizeof(EXE_HEADER), tmpFile) != sizeof(EXE_HEADER)) |
| | 538 | goto fail_io; |
| | 539 | section_address = SWAP32(tmpHead.t_addr); |
| | 540 | section_size = SWAP32(tmpHead.t_size); |
| | 541 | mem = PSXM(section_address); |
| | 542 | if (mem != INVALID_PTR) { |
| | 543 | fseek(tmpFile, 0x800, SEEK_SET); |
| | 544 | fread_to_ram(mem, section_size, 1, tmpFile); |
| | 545 | psxCpu->Clear(section_address, section_size / 4); |
| | 546 | } |
| | 547 | SetBootRegs(SWAP32(tmpHead.pc0), SWAP32(tmpHead.gp0), |
| | 548 | SWAP32(tmpHead.s_addr)); |
| | 549 | retval = 0; |
| | 550 | break; |
| | 551 | case CPE_EXE: |
| | 552 | fseek(tmpFile, 6, SEEK_SET); /* Something tells me we should go to 4 and read the "08 00" here... */ |
| | 553 | do { |
| | 554 | if (fread(&opcode, 1, sizeof(opcode), tmpFile) != sizeof(opcode)) |
| | 555 | goto fail_io; |
| | 556 | switch (opcode) { |
| | 557 | case 1: /* Section loading */ |
| | 558 | if (fread(§ion_address, 1, sizeof(section_address), tmpFile) != sizeof(section_address)) |
| | 559 | goto fail_io; |
| | 560 | if (fread(§ion_size, 1, sizeof(section_size), tmpFile) != sizeof(section_size)) |
| | 561 | goto fail_io; |
| | 562 | section_address = SWAPu32(section_address); |
| | 563 | section_size = SWAPu32(section_size); |
| | 564 | #ifdef EMU_LOG |
| | 565 | EMU_LOG("Loading %08X bytes from %08X to %08X\n", section_size, ftell(tmpFile), section_address); |
| | 566 | #endif |
| | 567 | mem = PSXM(section_address); |
| | 568 | if (mem != INVALID_PTR) { |
| | 569 | fread_to_ram(mem, section_size, 1, tmpFile); |
| | 570 | psxCpu->Clear(section_address, section_size / 4); |
| | 571 | } |
| | 572 | break; |
| | 573 | case 3: /* register loading (PC only?) */ |
| | 574 | fseek(tmpFile, 2, SEEK_CUR); /* unknown field */ |
| | 575 | if (fread(&psxRegs.pc, 1, sizeof(psxRegs.pc), tmpFile) != sizeof(psxRegs.pc)) |
| | 576 | goto fail_io; |
| | 577 | psxRegs.pc = SWAPu32(psxRegs.pc); |
| | 578 | break; |
| | 579 | case 0: /* End of file */ |
| | 580 | break; |
| | 581 | default: |
| | 582 | SysPrintf(_("Unknown CPE opcode %02x at position %08x.\n"), opcode, ftell(tmpFile) - 1); |
| | 583 | retval = -1; |
| | 584 | break; |
| | 585 | } |
| | 586 | } while (opcode != 0 && retval == 0); |
| | 587 | break; |
| | 588 | case COFF_EXE: |
| | 589 | SysPrintf(_("COFF files not supported.\n")); |
| | 590 | retval = -1; |
| | 591 | break; |
| | 592 | case INVALID_EXE: |
| | 593 | SysPrintf(_("This file does not appear to be a valid PSX EXE file.\n")); |
| | 594 | SysPrintf(_("(did you forget -cdfile ?)\n")); |
| | 595 | retval = -1; |
| | 596 | break; |
| | 597 | } |
| | 598 | } |
| | 599 | |
| | 600 | if (retval != 0) { |
| | 601 | CdromId[0] = '\0'; |
| | 602 | CdromLabel[0] = '\0'; |
| | 603 | } |
| | 604 | |
| | 605 | if (tmpFile) |
| | 606 | fclose(tmpFile); |
| | 607 | return retval; |
| | 608 | |
| | 609 | fail_io: |
| | 610 | #ifndef NDEBUG |
| | 611 | SysPrintf(_("File IO error in <%s:%s>.\n"), __FILE__, __func__); |
| | 612 | #endif |
| | 613 | fclose(tmpFile); |
| | 614 | return -1; |
| | 615 | } |
| | 616 | |
| | 617 | // STATES |
| | 618 | |
| | 619 | static void *zlib_open(const char *name, const char *mode) |
| | 620 | { |
| | 621 | return gzopen(name, mode); |
| | 622 | } |
| | 623 | |
| | 624 | static int zlib_read(void *file, void *buf, u32 len) |
| | 625 | { |
| | 626 | return gzread(file, buf, len); |
| | 627 | } |
| | 628 | |
| | 629 | static int zlib_write(void *file, const void *buf, u32 len) |
| | 630 | { |
| | 631 | return gzwrite(file, buf, len); |
| | 632 | } |
| | 633 | |
| | 634 | static long zlib_seek(void *file, long offs, int whence) |
| | 635 | { |
| | 636 | return gzseek(file, offs, whence); |
| | 637 | } |
| | 638 | |
| | 639 | static void zlib_close(void *file) |
| | 640 | { |
| | 641 | gzclose(file); |
| | 642 | } |
| | 643 | |
| | 644 | struct PcsxSaveFuncs SaveFuncs = { |
| | 645 | zlib_open, zlib_read, zlib_write, zlib_seek, zlib_close |
| | 646 | }; |
| | 647 | |
| | 648 | static const char PcsxHeader[32] = "STv4 PCSX v" PCSX_VERSION; |
| | 649 | |
| | 650 | // Savestate Versioning! |
| | 651 | // If you make changes to the savestate version, please increment the value below. |
| | 652 | static const u32 SaveVersion = 0x8b410006; |
| | 653 | |
| | 654 | #define MISC_MAGIC 0x4353494d |
| | 655 | struct misc_save_data { |
| | 656 | u32 magic; |
| | 657 | u32 gteBusyCycle; |
| | 658 | u32 muldivBusyCycle; |
| | 659 | u32 biuReg; |
| | 660 | u32 biosBranchCheck; |
| | 661 | u32 gpuIdleAfter; |
| | 662 | u32 gpuSr; |
| | 663 | u32 frame_counter; |
| | 664 | int CdromFrontendId; |
| | 665 | }; |
| | 666 | |
| | 667 | int SaveState(const char *file) { |
| | 668 | struct misc_save_data *misc = (void *)(psxH + 0xf000); |
| | 669 | void *f; |
| | 670 | GPUFreeze_t *gpufP = NULL; |
| | 671 | SPUFreezeHdr_t spufH; |
| | 672 | SPUFreeze_t *spufP = NULL; |
| | 673 | unsigned char *pMem = NULL; |
| | 674 | int result = -1; |
| | 675 | int Size; |
| | 676 | |
| | 677 | assert(!psxRegs.branching); |
| | 678 | assert(!psxRegs.cpuInRecursion); |
| | 679 | assert(!misc->magic); |
| | 680 | misc->magic = MISC_MAGIC; |
| | 681 | misc->gteBusyCycle = psxRegs.gteBusyCycle; |
| | 682 | misc->muldivBusyCycle = psxRegs.muldivBusyCycle; |
| | 683 | misc->biuReg = psxRegs.biuReg; |
| | 684 | misc->biosBranchCheck = psxRegs.biosBranchCheck; |
| | 685 | misc->gpuIdleAfter = psxRegs.gpuIdleAfter; |
| | 686 | misc->gpuSr = HW_GPU_STATUS; |
| | 687 | misc->frame_counter = frame_counter; |
| | 688 | misc->CdromFrontendId = CdromFrontendId; |
| | 689 | |
| | 690 | f = SaveFuncs.open(file, "wb"); |
| | 691 | if (f == NULL) return -1; |
| | 692 | |
| | 693 | psxCpu->Notify(R3000ACPU_NOTIFY_BEFORE_SAVE, NULL); |
| | 694 | |
| | 695 | SaveFuncs.write(f, (void *)PcsxHeader, 32); |
| | 696 | SaveFuncs.write(f, (void *)&SaveVersion, sizeof(u32)); |
| | 697 | SaveFuncs.write(f, (void *)&Config.HLE, sizeof(boolean)); |
| | 698 | |
| | 699 | pMem = (unsigned char *)malloc(128 * 96 * 3); |
| | 700 | if (pMem == NULL) goto cleanup; |
| | 701 | GPU_getScreenPic(pMem); |
| | 702 | SaveFuncs.write(f, pMem, 128 * 96 * 3); |
| | 703 | free(pMem); |
| | 704 | |
| | 705 | if (Config.HLE) |
| | 706 | psxBiosFreeze(1); |
| | 707 | |
| | 708 | SaveFuncs.write(f, psxM, 0x00200000); |
| | 709 | SaveFuncs.write(f, psxR, 0x00080000); |
| | 710 | SaveFuncs.write(f, psxH, 0x00010000); |
| | 711 | // only partial save of psxRegisters to maintain savestate compat |
| | 712 | SaveFuncs.write(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); |
| | 713 | |
| | 714 | // gpu |
| | 715 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); |
| | 716 | if (gpufP == NULL) goto cleanup; |
| | 717 | gpufP->ulFreezeVersion = 1; |
| | 718 | GPU_freeze(1, gpufP); |
| | 719 | SaveFuncs.write(f, gpufP, sizeof(GPUFreeze_t)); |
| | 720 | free(gpufP); gpufP = NULL; |
| | 721 | |
| | 722 | // spu |
| | 723 | SPU_freeze(2, (SPUFreeze_t *)&spufH, psxRegs.cycle); |
| | 724 | Size = spufH.Size; SaveFuncs.write(f, &Size, 4); |
| | 725 | spufP = (SPUFreeze_t *) malloc(Size); |
| | 726 | if (spufP == NULL) goto cleanup; |
| | 727 | SPU_freeze(1, spufP, psxRegs.cycle); |
| | 728 | SaveFuncs.write(f, spufP, Size); |
| | 729 | free(spufP); spufP = NULL; |
| | 730 | |
| | 731 | sioFreeze(f, 1); |
| | 732 | cdrFreeze(f, 1); |
| | 733 | psxHwFreeze(f, 1); |
| | 734 | psxRcntFreeze(f, 1); |
| | 735 | mdecFreeze(f, 1); |
| | 736 | new_dyna_freeze(f, 1); |
| | 737 | padFreeze(f, 1); |
| | 738 | |
| | 739 | result = 0; |
| | 740 | cleanup: |
| | 741 | memset(misc, 0, sizeof(*misc)); |
| | 742 | SaveFuncs.close(f); |
| | 743 | return result; |
| | 744 | } |
| | 745 | |
| | 746 | int LoadState(const char *file) { |
| | 747 | struct misc_save_data *misc = (void *)(psxH + 0xf000); |
| | 748 | u32 biosBranchCheckOld = psxRegs.biosBranchCheck; |
| | 749 | void *f; |
| | 750 | GPUFreeze_t *gpufP = NULL; |
| | 751 | SPUFreeze_t *spufP = NULL; |
| | 752 | int Size; |
| | 753 | char header[32]; |
| | 754 | u32 version; |
| | 755 | boolean hle; |
| | 756 | int result = -1; |
| | 757 | |
| | 758 | f = SaveFuncs.open(file, "rb"); |
| | 759 | if (f == NULL) return -1; |
| | 760 | |
| | 761 | SaveFuncs.read(f, header, sizeof(header)); |
| | 762 | SaveFuncs.read(f, &version, sizeof(u32)); |
| | 763 | SaveFuncs.read(f, &hle, sizeof(boolean)); |
| | 764 | |
| | 765 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) { |
| | 766 | SysPrintf("incompatible savestate version %x\n", version); |
| | 767 | goto cleanup; |
| | 768 | } |
| | 769 | Config.HLE = hle; |
| | 770 | |
| | 771 | if (Config.HLE) |
| | 772 | psxBiosInit(); |
| | 773 | |
| | 774 | SaveFuncs.seek(f, 128 * 96 * 3, SEEK_CUR); |
| | 775 | SaveFuncs.read(f, psxM, 0x00200000); |
| | 776 | SaveFuncs.read(f, psxR, 0x00080000); |
| | 777 | SaveFuncs.read(f, psxH, 0x00010000); |
| | 778 | SaveFuncs.read(f, &psxRegs, offsetof(psxRegisters, gteBusyCycle)); |
| | 779 | psxRegs.gteBusyCycle = psxRegs.cycle; |
| | 780 | psxRegs.biosBranchCheck = ~0; |
| | 781 | psxRegs.gpuIdleAfter = psxRegs.cycle - 1; |
| | 782 | HW_GPU_STATUS &= SWAP32(~PSXGPU_nBUSY); |
| | 783 | if (misc->magic == MISC_MAGIC) { |
| | 784 | psxRegs.gteBusyCycle = misc->gteBusyCycle; |
| | 785 | psxRegs.muldivBusyCycle = misc->muldivBusyCycle; |
| | 786 | psxRegs.biuReg = misc->biuReg; |
| | 787 | psxRegs.biosBranchCheck = misc->biosBranchCheck; |
| | 788 | psxRegs.gpuIdleAfter = misc->gpuIdleAfter; |
| | 789 | HW_GPU_STATUS = misc->gpuSr; |
| | 790 | frame_counter = misc->frame_counter; |
| | 791 | CdromFrontendId = misc->CdromFrontendId; |
| | 792 | } |
| | 793 | |
| | 794 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); |
| | 795 | |
| | 796 | if (Config.HLE) |
| | 797 | psxBiosFreeze(0); |
| | 798 | |
| | 799 | // gpu |
| | 800 | gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t)); |
| | 801 | if (gpufP == NULL) goto cleanup; |
| | 802 | SaveFuncs.read(f, gpufP, sizeof(GPUFreeze_t)); |
| | 803 | GPU_freeze(0, gpufP); |
| | 804 | free(gpufP); |
| | 805 | gpuSyncPluginSR(); |
| | 806 | |
| | 807 | // spu |
| | 808 | SaveFuncs.read(f, &Size, 4); |
| | 809 | spufP = (SPUFreeze_t *)malloc(Size); |
| | 810 | if (spufP == NULL) goto cleanup; |
| | 811 | SaveFuncs.read(f, spufP, Size); |
| | 812 | SPU_freeze(0, spufP, psxRegs.cycle); |
| | 813 | free(spufP); |
| | 814 | |
| | 815 | sioFreeze(f, 0); |
| | 816 | cdrFreeze(f, 0); |
| | 817 | psxHwFreeze(f, 0); |
| | 818 | psxRcntFreeze(f, 0); |
| | 819 | mdecFreeze(f, 0); |
| | 820 | new_dyna_freeze(f, 0); |
| | 821 | padFreeze(f, 0); |
| | 822 | |
| | 823 | events_restore(); |
| | 824 | if (Config.HLE) |
| | 825 | psxBiosCheckExe(biosBranchCheckOld, 0x60, 1); |
| | 826 | |
| | 827 | result = 0; |
| | 828 | cleanup: |
| | 829 | memset(misc, 0, sizeof(*misc)); |
| | 830 | SaveFuncs.close(f); |
| | 831 | return result; |
| | 832 | } |
| | 833 | |
| | 834 | int CheckState(const char *file) { |
| | 835 | void *f; |
| | 836 | char header[32]; |
| | 837 | u32 version; |
| | 838 | boolean hle; |
| | 839 | |
| | 840 | f = SaveFuncs.open(file, "rb"); |
| | 841 | if (f == NULL) return -1; |
| | 842 | |
| | 843 | SaveFuncs.read(f, header, sizeof(header)); |
| | 844 | SaveFuncs.read(f, &version, sizeof(u32)); |
| | 845 | SaveFuncs.read(f, &hle, sizeof(boolean)); |
| | 846 | |
| | 847 | SaveFuncs.close(f); |
| | 848 | |
| | 849 | if (strncmp("STv4 PCSX", header, 9) != 0 || version != SaveVersion) |
| | 850 | return -1; |
| | 851 | |
| | 852 | return 0; |
| | 853 | } |
| | 854 | |
| | 855 | // NET Function Helpers |
| | 856 | |
| | 857 | int SendPcsxInfo() { |
| | 858 | if (NET_recvData == NULL || NET_sendData == NULL) |
| | 859 | return 0; |
| | 860 | |
| | 861 | boolean Sio_old = 0; |
| | 862 | boolean SpuIrq_old = 0; |
| | 863 | boolean RCntFix_old = 0; |
| | 864 | NET_sendData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); |
| | 865 | NET_sendData(&Sio_old, sizeof(Sio_old), PSE_NET_BLOCKING); |
| | 866 | NET_sendData(&SpuIrq_old, sizeof(SpuIrq_old), PSE_NET_BLOCKING); |
| | 867 | NET_sendData(&RCntFix_old, sizeof(RCntFix_old), PSE_NET_BLOCKING); |
| | 868 | NET_sendData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); |
| | 869 | NET_sendData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); |
| | 870 | |
| | 871 | return 0; |
| | 872 | } |
| | 873 | |
| | 874 | int RecvPcsxInfo() { |
| | 875 | int tmp; |
| | 876 | |
| | 877 | if (NET_recvData == NULL || NET_sendData == NULL) |
| | 878 | return 0; |
| | 879 | |
| | 880 | boolean Sio_old = 0; |
| | 881 | boolean SpuIrq_old = 0; |
| | 882 | boolean RCntFix_old = 0; |
| | 883 | NET_recvData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING); |
| | 884 | NET_recvData(&Sio_old, sizeof(Sio_old), PSE_NET_BLOCKING); |
| | 885 | NET_recvData(&SpuIrq_old, sizeof(SpuIrq_old), PSE_NET_BLOCKING); |
| | 886 | NET_recvData(&RCntFix_old, sizeof(RCntFix_old), PSE_NET_BLOCKING); |
| | 887 | NET_recvData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING); |
| | 888 | |
| | 889 | tmp = Config.Cpu; |
| | 890 | NET_recvData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING); |
| | 891 | if (tmp != Config.Cpu) { |
| | 892 | psxCpu->Shutdown(); |
| | 893 | #ifndef DRC_DISABLE |
| | 894 | if (Config.Cpu == CPU_INTERPRETER) psxCpu = &psxInt; |
| | 895 | else psxCpu = &psxRec; |
| | 896 | #else |
| | 897 | psxCpu = &psxInt; |
| | 898 | #endif |
| | 899 | if (psxCpu->Init() == -1) { |
| | 900 | SysClose(); return -1; |
| | 901 | } |
| | 902 | psxCpu->Reset(); |
| | 903 | psxCpu->Notify(R3000ACPU_NOTIFY_AFTER_LOAD, NULL); |
| | 904 | } |
| | 905 | |
| | 906 | return 0; |
| | 907 | } |
| | 908 | |
| | 909 | // remove the leading and trailing spaces in a string |
| | 910 | void trim(char *str) { |
| | 911 | int pos = 0; |
| | 912 | char *dest = str; |
| | 913 | |
| | 914 | // skip leading blanks |
| | 915 | while (str[pos] <= ' ' && str[pos] > 0) |
| | 916 | pos++; |
| | 917 | |
| | 918 | while (str[pos]) { |
| | 919 | *(dest++) = str[pos]; |
| | 920 | pos++; |
| | 921 | } |
| | 922 | |
| | 923 | *(dest--) = '\0'; // store the null |
| | 924 | |
| | 925 | // remove trailing blanks |
| | 926 | while (dest >= str && *dest <= ' ' && *dest > 0) |
| | 927 | *(dest--) = '\0'; |
| | 928 | } |
| | 929 | |
| | 930 | // lookup table for crc calculation |
| | 931 | static unsigned short crctab[256] = { |
| | 932 | 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108, |
| | 933 | 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210, |
| | 934 | 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B, |
| | 935 | 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401, |
| | 936 | 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, |
| | 937 | 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, |
| | 938 | 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, |
| | 939 | 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, |
| | 940 | 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5, |
| | 941 | 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC, |
| | 942 | 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4, |
| | 943 | 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, |
| | 944 | 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, |
| | 945 | 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, |
| | 946 | 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, |
| | 947 | 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, |
| | 948 | 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1, |
| | 949 | 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB, |
| | 950 | 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0, |
| | 951 | 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8, |
| | 952 | 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, |
| | 953 | 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, |
| | 954 | 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, |
| | 955 | 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, |
| | 956 | 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E, |
| | 957 | 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07, |
| | 958 | 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D, |
| | 959 | 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74, |
| | 960 | 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 |
| | 961 | }; |
| | 962 | |
| | 963 | u16 calcCrc(u8 *d, int len) { |
| | 964 | u16 crc = 0; |
| | 965 | int i; |
| | 966 | |
| | 967 | for (i = 0; i < len; i++) { |
| | 968 | crc = crctab[(crc >> 8) ^ d[i]] ^ (crc << 8); |
| | 969 | } |
| | 970 | |
| | 971 | return ~crc; |
| | 972 | } |
notaz.gp2x.de / pcsx_rearmed.git / blame_incremental