libpcsxcore/psxbios.c

   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  * Internal simulated HLE BIOS.
  22  */
  23
  24 // TODO: implement all system calls, count the exact CPU cycles of system calls.
  25
  26 #include "psxbios.h"
  27 #include "psxhw.h"
  28 #include "gpu.h"
  29 #include <zlib.h>
  30
  31 #undef SysPrintf
  32 #define SysPrintf if (Config.PsxOut) printf
  33
  34 char *biosA0n[256] = {
  35 // 0x00
  36         "open",         "lseek",        "read",         "write",
  37         "close",        "ioctl",        "exit",         "sys_a0_07",
  38         "getc",         "putc",         "todigit",      "atof",
  39         "strtoul",      "strtol",       "abs",          "labs",
  40 // 0x10
  41         "atoi",         "atol",         "atob",         "setjmp",
  42         "longjmp",      "strcat",       "strncat",      "strcmp",
  43         "strncmp",      "strcpy",       "strncpy",      "strlen",
  44         "index",        "rindex",       "strchr",       "strrchr",
  45 // 0x20
  46         "strpbrk",      "strspn",       "strcspn",      "strtok",
  47         "strstr",       "toupper",      "tolower",      "bcopy",
  48         "bzero",        "bcmp",         "memcpy",       "memset",
  49         "memmove",      "memcmp",       "memchr",       "rand",
  50 // 0x30
  51         "srand",        "qsort",        "strtod",       "malloc",
  52         "free",         "lsearch",      "bsearch",      "calloc",
  53         "realloc",      "InitHeap",     "_exit",        "getchar",
  54         "putchar",      "gets",         "puts",         "printf",
  55 // 0x40
  56         "sys_a0_40",            "LoadTest",                                     "Load",         "Exec",
  57         "FlushCache",           "InstallInterruptHandler",      "GPU_dw",       "mem2vram",
  58         "SendGPUStatus",        "GPU_cw",                                       "GPU_cwb",      "SendPackets",
  59         "sys_a0_4c",            "GetGPUStatus",                         "GPU_sync",     "sys_a0_4f",
  60 // 0x50
  61         "sys_a0_50",            "LoadExec",                             "GetSysSp",             "sys_a0_53",
  62         "_96_init()",           "_bu_init()",                   "_96_remove()", "sys_a0_57",
  63         "sys_a0_58",            "sys_a0_59",                    "sys_a0_5a",    "dev_tty_init",
  64         "dev_tty_open",         "sys_a0_5d",                    "dev_tty_ioctl","dev_cd_open",
  65 // 0x60
  66         "dev_cd_read",          "dev_cd_close",                 "dev_cd_firstfile",     "dev_cd_nextfile",
  67         "dev_cd_chdir",         "dev_card_open",                "dev_card_read",        "dev_card_write",
  68         "dev_card_close",       "dev_card_firstfile",   "dev_card_nextfile","dev_card_erase",
  69         "dev_card_undelete","dev_card_format",          "dev_card_rename",      "dev_card_6f",
  70 // 0x70
  71         "_bu_init",                     "_96_init",             "_96_remove",           "sys_a0_73",
  72         "sys_a0_74",            "sys_a0_75",    "sys_a0_76",            "sys_a0_77",
  73         "_96_CdSeekL",          "sys_a0_79",    "sys_a0_7a",            "sys_a0_7b",
  74         "_96_CdGetStatus",      "sys_a0_7d",    "_96_CdRead",           "sys_a0_7f",
  75 // 0x80
  76         "sys_a0_80",            "sys_a0_81",    "sys_a0_82",            "sys_a0_83",
  77         "sys_a0_84",            "_96_CdStop",   "sys_a0_86",            "sys_a0_87",
  78         "sys_a0_88",            "sys_a0_89",    "sys_a0_8a",            "sys_a0_8b",
  79         "sys_a0_8c",            "sys_a0_8d",    "sys_a0_8e",            "sys_a0_8f",
  80 // 0x90
  81         "sys_a0_90",            "sys_a0_91",    "sys_a0_92",            "sys_a0_93",
  82         "sys_a0_94",            "sys_a0_95",    "AddCDROMDevice",       "AddMemCardDevide",
  83         "DisableKernelIORedirection",           "EnableKernelIORedirection", "sys_a0_9a", "sys_a0_9b",
  84         "SetConf",                      "GetConf",              "sys_a0_9e",            "SetMem",
  85 // 0xa0
  86         "_boot",                        "SystemError",  "EnqueueCdIntr",        "DequeueCdIntr",
  87         "sys_a0_a4",            "ReadSector",   "get_cd_status",        "bufs_cb_0",
  88         "bufs_cb_1",            "bufs_cb_2",    "bufs_cb_3",            "_card_info",
  89         "_card_load",           "_card_auto",   "bufs_cd_4",            "sys_a0_af",
  90 // 0xb0
  91         "sys_a0_b0",            "sys_a0_b1",    "do_a_long_jmp",        "sys_a0_b3",
  92         "?? sub_function",
  93 };
  94
  95 char *biosB0n[256] = {
  96 // 0x00
  97         "SysMalloc",            "sys_b0_01",    "sys_b0_02",    "sys_b0_03",
  98         "sys_b0_04",            "sys_b0_05",    "sys_b0_06",    "DeliverEvent",
  99         "OpenEvent",            "CloseEvent",   "WaitEvent",    "TestEvent",
 100         "EnableEvent",          "DisableEvent", "OpenTh",               "CloseTh",
 101 // 0x10
 102         "ChangeTh",                     "sys_b0_11",    "InitPAD",              "StartPAD",
 103         "StopPAD",                      "PAD_init",             "PAD_dr",               "ReturnFromExecption",
 104         "ResetEntryInt",        "HookEntryInt", "sys_b0_1a",    "sys_b0_1b",
 105         "sys_b0_1c",            "sys_b0_1d",    "sys_b0_1e",    "sys_b0_1f",
 106 // 0x20
 107         "UnDeliverEvent",       "sys_b0_21",    "sys_b0_22",    "sys_b0_23",
 108         "sys_b0_24",            "sys_b0_25",    "sys_b0_26",    "sys_b0_27",
 109         "sys_b0_28",            "sys_b0_29",    "sys_b0_2a",    "sys_b0_2b",
 110         "sys_b0_2c",            "sys_b0_2d",    "sys_b0_2e",    "sys_b0_2f",
 111 // 0x30
 112         "sys_b0_30",            "sys_b0_31",    "open",                 "lseek",
 113         "read",                         "write",                "close",                "ioctl",
 114         "exit",                         "sys_b0_39",    "getc",                 "putc",
 115         "getchar",                      "putchar",              "gets",                 "puts",
 116 // 0x40
 117         "cd",                           "format",               "firstfile",    "nextfile",
 118         "rename",                       "delete",               "undelete",             "AddDevice",
 119         "RemoteDevice",         "PrintInstalledDevices", "InitCARD", "StartCARD",
 120         "StopCARD",                     "sys_b0_4d",    "_card_write",  "_card_read",
 121 // 0x50
 122         "_new_card",            "Krom2RawAdd",  "sys_b0_52",    "sys_b0_53",
 123         "_get_errno",           "_get_error",   "GetC0Table",   "GetB0Table",
 124         "_card_chan",           "sys_b0_59",    "sys_b0_5a",    "ChangeClearPAD",
 125         "_card_status",         "_card_wait",
 126 };
 127
 128 char *biosC0n[256] = {
 129 // 0x00
 130         "InitRCnt",                       "InitException",              "SysEnqIntRP",          "SysDeqIntRP",
 131         "get_free_EvCB_slot", "get_free_TCB_slot",      "ExceptionHandler",     "InstallExeptionHandler",
 132         "SysInitMemory",          "SysInitKMem",                "ChangeClearRCnt",      "SystemError",
 133         "InitDefInt",             "sys_c0_0d",                  "sys_c0_0e",            "sys_c0_0f",
 134 // 0x10
 135         "sys_c0_10",              "sys_c0_11",                  "InstallDevices",       "FlushStfInOutPut",
 136         "sys_c0_14",              "_cdevinput",                 "_cdevscan",            "_circgetc",
 137         "_circputc",              "ioabort",                    "sys_c0_1a",            "KernelRedirect",
 138         "PatchAOTable",
 139 };
 140
 141 //#define r0 (psxRegs.GPR.n.r0)
 142 #define at (psxRegs.GPR.n.at)
 143 #define v0 (psxRegs.GPR.n.v0)
 144 #define v1 (psxRegs.GPR.n.v1)
 145 #define a0 (psxRegs.GPR.n.a0)
 146 #define a1 (psxRegs.GPR.n.a1)
 147 #define a2 (psxRegs.GPR.n.a2)
 148 #define a3 (psxRegs.GPR.n.a3)
 149 #define t0 (psxRegs.GPR.n.t0)
 150 #define t1 (psxRegs.GPR.n.t1)
 151 #define t2 (psxRegs.GPR.n.t2)
 152 #define t3 (psxRegs.GPR.n.t3)
 153 #define t4 (psxRegs.GPR.n.t4)
 154 #define t5 (psxRegs.GPR.n.t5)
 155 #define t6 (psxRegs.GPR.n.t6)
 156 #define t7 (psxRegs.GPR.n.t7)
 157 #define t8 (psxRegs.GPR.n.t8)
 158 #define t9 (psxRegs.GPR.n.t9)
 159 #define s0 (psxRegs.GPR.n.s0)
 160 #define s1 (psxRegs.GPR.n.s1)
 161 #define s2 (psxRegs.GPR.n.s2)
 162 #define s3 (psxRegs.GPR.n.s3)
 163 #define s4 (psxRegs.GPR.n.s4)
 164 #define s5 (psxRegs.GPR.n.s5)
 165 #define s6 (psxRegs.GPR.n.s6)
 166 #define s7 (psxRegs.GPR.n.s7)
 167 #define k0 (psxRegs.GPR.n.k0)
 168 #define k1 (psxRegs.GPR.n.k1)
 169 #define gp (psxRegs.GPR.n.gp)
 170 #define sp (psxRegs.GPR.n.sp)
 171 #define fp (psxRegs.GPR.n.s8)
 172 #define ra (psxRegs.GPR.n.ra)
 173 #define pc0 (psxRegs.pc)
 174
 175 #define Ra0 ((char *)PSXM(a0))
 176 #define Ra1 ((char *)PSXM(a1))
 177 #define Ra2 ((char *)PSXM(a2))
 178 #define Ra3 ((char *)PSXM(a3))
 179 #define Rv0 ((char *)PSXM(v0))
 180 #define Rsp ((char *)PSXM(sp))
 181
 182 typedef struct {
 183         u32 desc;
 184         s32 status;
 185         s32 mode;
 186         u32 fhandler;
 187 } EvCB[32];
 188
 189 #define EvStUNUSED      0x0000
 190 #define EvStWAIT        0x1000
 191 #define EvStACTIVE      0x2000
 192 #define EvStALREADY 0x4000
 193
 194 #define EvMdINTR        0x1000
 195 #define EvMdNOINTR      0x2000
 196
 197 /*
 198 typedef struct {
 199         s32 next;
 200         s32 func1;
 201         s32 func2;
 202         s32 pad;
 203 } SysRPst;
 204 */
 205
 206 typedef struct {
 207         s32 status;
 208         s32 mode;
 209         u32 reg[32];
 210         u32 func;
 211 } TCB;
 212
 213 typedef struct {
 214         u32 _pc0;
 215         u32 gp0;
 216         u32 t_addr;
 217         u32 t_size;
 218         u32 d_addr;
 219         u32 d_size;
 220         u32 b_addr;
 221         u32 b_size;
 222         u32 S_addr;
 223         u32 s_size;
 224         u32 _sp, _fp, _gp, ret, base;
 225 } EXEC;
 226
 227 struct DIRENTRY {
 228         char name[20];
 229         s32 attr;
 230         s32 size;
 231         u32 next;
 232         s32 head;
 233         char system[4];
 234 };
 235
 236 typedef struct {
 237         char name[32];
 238         u32  mode;
 239         u32  offset;
 240         u32  size;
 241         u32  mcfile;
 242 } FileDesc;
 243
 244 static u32 *jmp_int = NULL;
 245 static int *pad_buf = NULL;
 246 static char *pad_buf1 = NULL, *pad_buf2 = NULL;
 247 static int pad_buf1len, pad_buf2len;
 248
 249 static u32 regs[35];
 250 static EvCB *Event;
 251 static EvCB *HwEV; // 0xf0
 252 static EvCB *EvEV; // 0xf1
 253 static EvCB *RcEV; // 0xf2
 254 static EvCB *UeEV; // 0xf3
 255 static EvCB *SwEV; // 0xf4
 256 static EvCB *ThEV; // 0xff
 257 static u32 *heap_addr = NULL;
 258 static u32 *heap_end = NULL;
 259 static u32 SysIntRP[8];
 260 static int CardState = -1;
 261 static TCB Thread[8];
 262 static int CurThread = 0;
 263 static FileDesc FDesc[32];
 264 static u32 card_active_chan;
 265
 266 boolean hleSoftCall = FALSE;
 267
 268 static inline void softCall(u32 pc) {
 269         pc0 = pc;
 270         ra = 0x80001000;
 271
 272         hleSoftCall = TRUE;
 273
 274         while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
 275
 276         hleSoftCall = FALSE;
 277 }
 278
 279 static inline void softCall2(u32 pc) {
 280         u32 sra = ra;
 281         pc0 = pc;
 282         ra = 0x80001000;
 283
 284         hleSoftCall = TRUE;
 285
 286         while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
 287         ra = sra;
 288
 289         hleSoftCall = FALSE;
 290 }
 291
 292 static inline void DeliverEvent(u32 ev, u32 spec) {
 293         if (Event[ev][spec].status != EvStACTIVE) return;
 294
 295 //      Event[ev][spec].status = EvStALREADY;
 296         if (Event[ev][spec].mode == EvMdINTR) {
 297                 softCall2(Event[ev][spec].fhandler);
 298         } else Event[ev][spec].status = EvStALREADY;
 299 }
 300
 301 static inline void SaveRegs() {
 302         memcpy(regs, psxRegs.GPR.r, 32*4);
 303         regs[32] = psxRegs.GPR.n.lo;
 304         regs[33] = psxRegs.GPR.n.hi;
 305         regs[34] = psxRegs.pc;
 306 }
 307
 308 static inline void LoadRegs() {
 309         memcpy(psxRegs.GPR.r, regs, 32*4);
 310         psxRegs.GPR.n.lo = regs[32];
 311         psxRegs.GPR.n.hi = regs[33];
 312 }
 313
 314 /*                                           *
 315 //                                           *
 316 //                                           *
 317 //               System calls A0             */
 318
 319
 320 #define buread(Ra1, mcd, length) { \
 321         SysPrintf("read %d: %x,%x (%s)\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2, Mcd##mcd##Data + 128 * FDesc[1 + mcd].mcfile + 0xa); \
 322         ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
 323         memcpy(Ra1, ptr, length); \
 324         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
 325         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
 326         if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
 327         else v0 = length; \
 328         FDesc[1 + mcd].offset += v0; \
 329 }
 330
 331 #define buwrite(Ra1, mcd, length) { \
 332         u32 offset =  + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
 333         SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
 334         ptr = Mcd##mcd##Data + offset; \
 335         memcpy(ptr, Ra1, length); \
 336         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
 337         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
 338         FDesc[1 + mcd].offset += length; \
 339         if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
 340         else v0 = length; \
 341 }
 342
 343
 344 /* Internally redirects to "FileRead(fd,tempbuf,1)".*/
 345 /* For some strange reason, the returned character is sign-expanded; */
 346 /* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
 347 /* TODO FIX ME : Properly implement this behaviour */
 348 void psxBios_getc(void) // 0x03, 0x35
 349 {
 350         char *ptr;
 351         void *pa1 = Ra1;
 352 #ifdef PSXBIOS_LOG
 353         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
 354 #endif
 355         v0 = -1;
 356
 357         if (pa1) {
 358                 switch (a0) {
 359                         case 2: buread(pa1, 1, 1); break;
 360                         case 3: buread(pa1, 2, 1); break;
 361                 }
 362         }
 363
 364         pc0 = ra;
 365 }
 366
 367 /* Copy of psxBios_write, except size is 1. */
 368 void psxBios_putc(void) // 0x09, 0x3B
 369 {
 370         char *ptr;
 371         void *pa1 = Ra1;
 372 #ifdef PSXBIOS_LOG
 373         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
 374 #endif
 375         v0 = -1;
 376         if (!pa1) {
 377                 pc0 = ra;
 378                 return;
 379         }
 380
 381         if (a0 == 1) { // stdout
 382                 char *ptr = (char *)pa1;
 383
 384                 v0 = a2;
 385                 while (a2 > 0) {
 386                         printf("%c", *ptr++); a2--;
 387                 }
 388                 pc0 = ra; return;
 389         }
 390
 391         switch (a0) {
 392                 case 2: buwrite(pa1, 1, 1); break;
 393                 case 3: buwrite(pa1, 2, 1); break;
 394         }
 395
 396         pc0 = ra;
 397 }
 398
 399 void psxBios_todigit(void) // 0x0a
 400 {
 401         int c = a0;
 402 #ifdef PSXBIOS_LOG
 403         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
 404 #endif
 405         c &= 0xFF;
 406         if (c >= 0x30 && c < 0x3A) {
 407                 c -= 0x30;
 408         }
 409         else if (c > 0x60 && c < 0x7B) {
 410                 c -= 0x20;
 411         }
 412         else if (c > 0x40 && c < 0x5B) {
 413                 c = c - 0x41 + 10;
 414         }
 415         else if (c >= 0x80) {
 416                 c = -1;
 417         }
 418         else
 419         {
 420                 c = 0x0098967F;
 421         }
 422         v0 = c;
 423         pc0 = ra;
 424 }
 425
 426 void psxBios_abs() { // 0x0e
 427         if ((s32)a0 < 0) v0 = -(s32)a0;
 428         else v0 = a0;
 429         pc0 = ra;
 430 }
 431
 432 void psxBios_labs() { // 0x0f
 433         psxBios_abs();
 434 }
 435
 436 void psxBios_atoi() { // 0x10
 437         s32 n = 0, f = 0;
 438         char *p = (char *)Ra0;
 439
 440         for (;;p++) {
 441                 switch (*p) {
 442                         case ' ': case '\t': continue;
 443                         case '-': f++;
 444                         case '+': p++;
 445                 }
 446                 break;
 447         }
 448
 449         while (*p >= '0' && *p <= '9') {
 450                 n = n * 10 + *p++ - '0';
 451         }
 452
 453         v0 = (f ? -n : n);
 454         pc0 = ra;
 455 }
 456
 457 void psxBios_atol() { // 0x11
 458         psxBios_atoi();
 459 }
 460
 461 void psxBios_setjmp() { // 0x13
 462         u32 *jmp_buf = (u32 *)Ra0;
 463         int i;
 464
 465 #ifdef PSXBIOS_LOG
 466         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
 467 #endif
 468
 469         jmp_buf[0] = ra;
 470         jmp_buf[1] = sp;
 471         jmp_buf[2] = fp;
 472         for (i = 0; i < 8; i++) // s0-s7
 473                 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
 474         jmp_buf[11] = gp;
 475
 476         v0 = 0; pc0 = ra;
 477 }
 478
 479 void psxBios_longjmp() { // 0x14
 480         u32 *jmp_buf = (u32 *)Ra0;
 481         int i;
 482
 483 #ifdef PSXBIOS_LOG
 484         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
 485 #endif
 486
 487         ra = jmp_buf[0]; /* ra */
 488         sp = jmp_buf[1]; /* sp */
 489         fp = jmp_buf[2]; /* fp */
 490         for (i = 0; i < 8; i++) // s0-s7
 491                 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
 492         gp = jmp_buf[11]; /* gp */
 493
 494         v0 = a1; pc0 = ra;
 495 }
 496
 497 void psxBios_strcat() { // 0x15
 498         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 499
 500 #ifdef PSXBIOS_LOG
 501         PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
 502 #endif
 503         if (a0 == 0 || a1 == 0)
 504         {
 505                 v0 = 0;
 506                 pc0 = ra;
 507                 return;
 508         }
 509         while (*p1++);
 510         --p1;
 511         while ((*p1++ = *p2++) != '\0');
 512
 513         v0 = a0; pc0 = ra;
 514 }
 515
 516 void psxBios_strncat() { // 0x16
 517         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 518         s32 n = a2;
 519
 520 #ifdef PSXBIOS_LOG
 521         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
 522 #endif
 523         if (a0 == 0 || a1 == 0)
 524         {
 525                 v0 = 0;
 526                 pc0 = ra;
 527                 return;
 528         }
 529         while (*p1++);
 530         --p1;
 531         while ((*p1++ = *p2++) != '\0') {
 532                 if (--n < 0) {
 533                         *--p1 = '\0';
 534                         break;
 535                 }
 536         }
 537
 538         v0 = a0; pc0 = ra;
 539 }
 540
 541 void psxBios_strcmp() { // 0x17
 542         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 543
 544 #ifdef PSXBIOS_LOG
 545         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
 546 #endif
 547
 548         while (*p1 == *p2++) {
 549                 if (*p1++ == '\0') {
 550                         v0 = 0;
 551                         pc0 = ra;
 552                         return;
 553                 }
 554         }
 555
 556         v0 = (*p1 - *--p2);
 557         pc0 = ra;
 558 }
 559
 560 void psxBios_strncmp() { // 0x18
 561         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 562         s32 n = a2;
 563
 564 #ifdef PSXBIOS_LOG
 565         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
 566 #endif
 567
 568         while (--n >= 0 && *p1 == *p2++) {
 569                 if (*p1++ == '\0') {
 570                         v0 = 0;
 571                         pc0 = ra;
 572                         return;
 573                 }
 574         }
 575
 576         v0 = (n < 0 ? 0 : *p1 - *--p2);
 577         pc0 = ra;
 578 }
 579
 580 void psxBios_strcpy() { // 0x19
 581         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 582         while ((*p1++ = *p2++) != '\0');
 583
 584         v0 = a0; pc0 = ra;
 585 }
 586
 587 void psxBios_strncpy() { // 0x1a
 588         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 589         s32 n = a2, i;
 590
 591         for (i = 0; i < n; i++) {
 592                 if ((*p1++ = *p2++) == '\0') {
 593                         while (++i < n) {
 594                                 *p1++ = '\0';
 595                         }
 596                         v0 = a0; pc0 = ra;
 597                         return;
 598                 }
 599         }
 600
 601         v0 = a0; pc0 = ra;
 602 }
 603
 604 void psxBios_strlen() { // 0x1b
 605         char *p = (char *)Ra0;
 606         v0 = 0;
 607         while (*p++) v0++;
 608         pc0 = ra;
 609 }
 610
 611 void psxBios_index() { // 0x1c
 612         char *p = (char *)Ra0;
 613         if (a0 == 0)
 614         {
 615                 v0 = 0;
 616                 pc0 = ra;
 617                 return;
 618         }
 619
 620         do {
 621                 if (*p == a1) {
 622                         v0 = a0 + (p - (char *)Ra0);
 623                         pc0 = ra;
 624                         return;
 625                 }
 626         } while (*p++ != '\0');
 627
 628         v0 = 0; pc0 = ra;
 629 }
 630
 631 void psxBios_rindex() { // 0x1d
 632         char *p = (char *)Ra0;
 633
 634         v0 = 0;
 635         if (a0 == 0)
 636         {
 637                 pc0 = ra;
 638                 return;
 639         }
 640         do {
 641                 if (*p == a1)
 642                         v0 = a0 + (p - (char *)Ra0);
 643         } while (*p++ != '\0');
 644
 645         pc0 = ra;
 646 }
 647
 648 void psxBios_strchr() { // 0x1e
 649         psxBios_index();
 650 }
 651
 652 void psxBios_strrchr() { // 0x1f
 653         psxBios_rindex();
 654 }
 655
 656 void psxBios_strpbrk() { // 0x20
 657         char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
 658
 659         while ((c = *p1++) != '\0') {
 660                 for (scanp = p2; (sc = *scanp++) != '\0';) {
 661                         if (sc == c) {
 662                                 v0 = a0 + (p1 - 1 - (char *)Ra0);
 663                                 pc0 = ra;
 664                                 return;
 665                         }
 666                 }
 667         }
 668
 669         // BUG: return a0 instead of NULL if not found
 670         v0 = a0; pc0 = ra;
 671 }
 672
 673 void psxBios_strspn() { // 0x21
 674         char *p1, *p2;
 675
 676         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 677                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 678                 if (*p2 == '\0') break;
 679         }
 680
 681         v0 = p1 - (char *)Ra0; pc0 = ra;
 682 }
 683
 684 void psxBios_strcspn() { // 0x22
 685         char *p1, *p2;
 686
 687         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 688                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 689                 if (*p2 != '\0') break;
 690         }
 691
 692         v0 = p1 - (char *)Ra0; pc0 = ra;
 693 }
 694
 695 void psxBios_strtok() { // 0x23
 696         char *pcA0 = (char *)Ra0;
 697         char *pcRet = strtok(pcA0, (char *)Ra1);
 698         if (pcRet)
 699                 v0 = a0 + pcRet - pcA0;
 700         else
 701                 v0 = 0;
 702         pc0 = ra;
 703 }
 704
 705 void psxBios_strstr() { // 0x24
 706         char *p = (char *)Ra0, *p1, *p2;
 707
 708         while (*p != '\0') {
 709                 p1 = p;
 710                 p2 = (char *)Ra1;
 711
 712                 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
 713                         p1++; p2++;
 714                 }
 715
 716                 if (*p2 == '\0') {
 717                         v0 = a0 + (p - (char *)Ra0);
 718                         pc0 = ra;
 719                         return;
 720                 }
 721
 722                 p++;
 723         }
 724
 725         v0 = 0; pc0 = ra;
 726 }
 727
 728 void psxBios_toupper() { // 0x25
 729         v0 = (s8)(a0 & 0xff);
 730         if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
 731         pc0 = ra;
 732 }
 733
 734 void psxBios_tolower() { // 0x26
 735         v0 = (s8)(a0 & 0xff);
 736         if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
 737         pc0 = ra;
 738 }
 739
 740 void psxBios_bcopy() { // 0x27
 741         char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
 742         while ((s32)a2-- > 0) *p1++ = *p2++;
 743
 744         pc0 = ra;
 745 }
 746
 747 void psxBios_bzero() { // 0x28
 748         char *p = (char *)Ra0;
 749         while ((s32)a1-- > 0) *p++ = '\0';
 750
 751         pc0 = ra;
 752 }
 753
 754 void psxBios_bcmp() { // 0x29
 755         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 756
 757         if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
 758
 759         while ((s32)a2-- > 0) {
 760                 if (*p1++ != *p2++) {
 761                         v0 = *p1 - *p2; // BUG: compare the NEXT byte
 762                         pc0 = ra;
 763                         return;
 764                 }
 765         }
 766
 767         v0 = 0; pc0 = ra;
 768 }
 769
 770 void psxBios_memcpy() { // 0x2a
 771         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 772         while ((s32)a2-- > 0) *p1++ = *p2++;
 773
 774         v0 = a0; pc0 = ra;
 775 }
 776
 777 void psxBios_memset() { // 0x2b
 778         char *p = (char *)Ra0;
 779         while ((s32)a2-- > 0) *p++ = (char)a1;
 780
 781         a2 = 0;
 782         v0 = a0; pc0 = ra;
 783 }
 784
 785 void psxBios_memmove() { // 0x2c
 786         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 787
 788         if (p2 <= p1 && p2 + a2 > p1) {
 789                 a2++; // BUG: copy one more byte here
 790                 p1 += a2;
 791                 p2 += a2;
 792                 while ((s32)a2-- > 0) *--p1 = *--p2;
 793         } else {
 794                 while ((s32)a2-- > 0) *p1++ = *p2++;
 795         }
 796
 797         v0 = a0; pc0 = ra;
 798 }
 799
 800 void psxBios_memcmp() { // 0x2d
 801         psxBios_bcmp();
 802 }
 803
 804 void psxBios_memchr() { // 0x2e
 805         char *p = (char *)Ra0;
 806
 807         while ((s32)a2-- > 0) {
 808                 if (*p++ != (s8)a1) continue;
 809                 v0 = a0 + (p - (char *)Ra0 - 1);
 810                 pc0 = ra;
 811                 return;
 812         }
 813
 814         v0 = 0; pc0 = ra;
 815 }
 816
 817 void psxBios_rand() { // 0x2f
 818         u32 s = psxMu32(0x9010) * 1103515245 + 12345;
 819         v0 = (s >> 16) & 0x7fff;
 820         psxMu32ref(0x9010) = SWAPu32(s);
 821         pc0 = ra;
 822 }
 823
 824 void psxBios_srand() { // 0x30
 825         psxMu32ref(0x9010) = SWAPu32(a0);
 826         pc0 = ra;
 827 }
 828
 829 static u32 qscmpfunc, qswidth;
 830
 831 static inline int qscmp(char *a, char *b) {
 832         u32 sa0 = a0;
 833
 834         a0 = sa0 + (a - (char *)PSXM(sa0));
 835         a1 = sa0 + (b - (char *)PSXM(sa0));
 836
 837         softCall2(qscmpfunc);
 838
 839         a0 = sa0;
 840         return (s32)v0;
 841 }
 842
 843 static inline void qexchange(char *i, char *j) {
 844         char t;
 845         int n = qswidth;
 846
 847         do {
 848                 t = *i;
 849                 *i++ = *j;
 850                 *j++ = t;
 851         } while (--n);
 852 }
 853
 854 static inline void q3exchange(char *i, char *j, char *k) {
 855         char t;
 856         int n = qswidth;
 857
 858         do {
 859                 t = *i;
 860                 *i++ = *k;
 861                 *k++ = *j;
 862                 *j++ = t;
 863         } while (--n);
 864 }
 865
 866 static void qsort_main(char *a, char *l) {
 867         char *i, *j, *lp, *hp;
 868         int c;
 869         unsigned int n;
 870
 871 start:
 872         if ((n = l - a) <= qswidth)
 873                 return;
 874         n = qswidth * (n / (2 * qswidth));
 875         hp = lp = a + n;
 876         i = a;
 877         j = l - qswidth;
 878         while (TRUE) {
 879                 if (i < lp) {
 880                         if ((c = qscmp(i, lp)) == 0) {
 881                                 qexchange(i, lp -= qswidth);
 882                                 continue;
 883                         }
 884                         if (c < 0) {
 885                                 i += qswidth;
 886                                 continue;
 887                         }
 888                 }
 889
 890 loop:
 891                 if (j > hp) {
 892                         if ((c = qscmp(hp, j)) == 0) {
 893                                 qexchange(hp += qswidth, j);
 894                                 goto loop;
 895                         }
 896                         if (c > 0) {
 897                                 if (i == lp) {
 898                                         q3exchange(i, hp += qswidth, j);
 899                                         i = lp += qswidth;
 900                                         goto loop;
 901                                 }
 902                                 qexchange(i, j);
 903                                 j -= qswidth;
 904                                 i += qswidth;
 905                                 continue;
 906                         }
 907                         j -= qswidth;
 908                         goto loop;
 909                 }
 910
 911                 if (i == lp) {
 912                         if (lp - a >= l - hp) {
 913                                 qsort_main(hp + qswidth, l);
 914                                 l = lp;
 915                         } else {
 916                                 qsort_main(a, lp);
 917                                 a = hp + qswidth;
 918                         }
 919                         goto start;
 920                 }
 921
 922                 q3exchange(j, lp -= qswidth, i);
 923                 j = hp -= qswidth;
 924         }
 925 }
 926
 927 void psxBios_qsort() { // 0x31
 928         qswidth = a2;
 929         qscmpfunc = a3;
 930         qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
 931
 932         pc0 = ra;
 933 }
 934
 935 void psxBios_malloc() { // 0x33
 936         unsigned int *chunk, *newchunk = NULL;
 937         unsigned int dsize = 0, csize, cstat;
 938         int colflag;
 939 #ifdef PSXBIOS_LOG
 940         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
 941 #endif
 942
 943         // scan through heap and combine free chunks of space
 944         chunk = heap_addr;
 945         colflag = 0;
 946         while(chunk < heap_end) {
 947                 // get size and status of actual chunk
 948                 csize = ((u32)*chunk) & 0xfffffffc;
 949                 cstat = ((u32)*chunk) & 1;
 950
 951                 // it's a free chunk
 952                 if(cstat == 1) {
 953                         if(colflag == 0) {
 954                                 newchunk = chunk;
 955                                 dsize = csize;
 956                                 colflag = 1;                    // let's begin a new collection of free memory
 957                         }
 958                         else dsize += (csize+4);        // add the new size including header
 959                 }
 960                 // not a free chunk: did we start a collection ?
 961                 else {
 962                         if(colflag == 1) {                      // collection is over
 963                                 colflag = 0;
 964                                 *newchunk = SWAP32(dsize | 1);
 965                         }
 966                 }
 967
 968                 // next chunk
 969                 chunk = (u32*)((uptr)chunk + csize + 4);
 970         }
 971         // if neccessary free memory on end of heap
 972         if (colflag == 1)
 973                 *newchunk = SWAP32(dsize | 1);
 974
 975         chunk = heap_addr;
 976         csize = ((u32)*chunk) & 0xfffffffc;
 977         cstat = ((u32)*chunk) & 1;
 978         dsize = (a0 + 3) & 0xfffffffc;
 979
 980         // exit on uninitialized heap
 981         if (chunk == NULL) {
 982                 SysPrintf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
 983                 v0 = 0;
 984                 pc0 = ra;
 985                 return;
 986         }
 987
 988         // search an unused chunk that is big enough until the end of the heap
 989         while ((dsize > csize || cstat == 0) && chunk < heap_end ) {
 990                 chunk = (u32*)((uptr)chunk + csize + 4);
 991                 csize = ((u32)*chunk) & 0xfffffffc;
 992                 cstat = ((u32)*chunk) & 1;
 993         }
 994
 995         // catch out of memory
 996         if(chunk >= heap_end) { SysPrintf("malloc %x,%x: Out of memory error!\n", v0, a0); v0 = 0; pc0 = ra; return; }
 997
 998         // allocate memory
 999         if(dsize == csize) {
1000                 // chunk has same size
1001                 *chunk &= 0xfffffffc;
1002         }
1003         else {
1004                 // split free chunk
1005                 *chunk = SWAP32(dsize);
1006                 newchunk = (u32*)((uptr)chunk + dsize + 4);
1007                 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
1008         }
1009
1010         // return pointer to allocated memory
1011         v0 = ((unsigned long)chunk - (unsigned long)psxM) + 4;
1012         v0|= 0x80000000;
1013         SysPrintf ("malloc %x,%x\n", v0, a0);
1014         pc0 = ra;
1015 }
1016
1017 void psxBios_free() { // 0x34
1018
1019 #ifdef PSXBIOS_LOG
1020         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1021 #endif
1022
1023         SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1024
1025         *(u32*)(Ra0-4) |= 1;    // set chunk to free
1026         pc0 = ra;
1027 }
1028
1029 void psxBios_calloc() { // 0x37
1030         void *pv0;
1031 #ifdef PSXBIOS_LOG
1032         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1033 #endif
1034
1035         a0 = a0 * a1;
1036         psxBios_malloc();
1037         pv0 = Rv0;
1038         if (pv0)
1039                 memset(pv0, 0, a0);
1040 }
1041
1042 void psxBios_realloc() { // 0x38
1043         u32 block = a0;
1044         u32 size = a1;
1045 #ifdef PSXBIOS_LOG
1046         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1047 #endif
1048
1049         a0 = block;
1050         /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1051         if (block == 0)
1052         {
1053                 psxBios_malloc();
1054         }
1055         /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1056         else if (size == 0)
1057         {
1058                 psxBios_free();
1059         }
1060         /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1061         /* Note that it is not quite implemented this way here. */
1062         else
1063         {
1064                 psxBios_free();
1065                 a0 = size;
1066                 psxBios_malloc();
1067         }
1068 }
1069
1070
1071 /* InitHeap(void *block , int n) */
1072 void psxBios_InitHeap() { // 0x39
1073         unsigned int size;
1074
1075 #ifdef PSXBIOS_LOG
1076         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1077 #endif
1078
1079         if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1080         else size = a1;
1081
1082         size &= 0xfffffffc;
1083
1084         heap_addr = (u32 *)Ra0;
1085         heap_end = (u32 *)((u8 *)heap_addr + size);
1086         *heap_addr = SWAP32(size | 1);
1087
1088         SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
1089
1090         pc0 = ra;
1091 }
1092
1093 void psxBios_getchar() { //0x3b
1094         v0 = getchar(); pc0 = ra;
1095 }
1096
1097 void psxBios_printf() { // 0x3f
1098         char tmp[1024];
1099         char tmp2[1024];
1100         u32 save[4];
1101         char *ptmp = tmp;
1102         int n=1, i=0, j;
1103         void *psp;
1104
1105         psp = PSXM(sp);
1106         if (psp) {
1107                 memcpy(save, psp, 4 * 4);
1108                 psxMu32ref(sp) = SWAP32((u32)a0);
1109                 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1110                 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1111                 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1112         }
1113
1114         while (Ra0[i]) {
1115                 switch (Ra0[i]) {
1116                         case '%':
1117                                 j = 0;
1118                                 tmp2[j++] = '%';
1119 _start:
1120                                 switch (Ra0[++i]) {
1121                                         case '.':
1122                                         case 'l':
1123                                                 tmp2[j++] = Ra0[i]; goto _start;
1124                                         default:
1125                                                 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1126                                                         tmp2[j++] = Ra0[i];
1127                                                         goto _start;
1128                                                 }
1129                                                 break;
1130                                 }
1131                                 tmp2[j++] = Ra0[i];
1132                                 tmp2[j] = 0;
1133
1134                                 switch (Ra0[i]) {
1135                                         case 'f': case 'F':
1136                                                 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1137                                         case 'a': case 'A':
1138                                         case 'e': case 'E':
1139                                         case 'g': case 'G':
1140                                                 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1141                                         case 'p':
1142                                         case 'i': case 'u':
1143                                         case 'd': case 'D':
1144                                         case 'o': case 'O':
1145                                         case 'x': case 'X':
1146                                                 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1147                                         case 'c':
1148                                                 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1149                                         case 's':
1150                                                 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1151                                         case '%':
1152                                                 *ptmp++ = Ra0[i]; break;
1153                                 }
1154                                 i++;
1155                                 break;
1156                         default:
1157                                 *ptmp++ = Ra0[i++];
1158                 }
1159         }
1160         *ptmp = 0;
1161
1162         if (psp)
1163                 memcpy(psp, save, 4 * 4);
1164
1165         SysPrintf("%s", tmp);
1166
1167         pc0 = ra;
1168 }
1169
1170 void psxBios_format() { // 0x41
1171         if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1172         {
1173                 CreateMcd(Config.Mcd1);
1174                 LoadMcd(1, Config.Mcd1);
1175                 v0 = 1;
1176         }
1177         else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1178         {
1179                 CreateMcd(Config.Mcd2);
1180                 LoadMcd(2, Config.Mcd2);
1181                 v0 = 1;
1182         }
1183         else
1184         {
1185                 v0 = 0;
1186         }
1187         pc0 = ra;
1188 }
1189
1190 /*
1191  *      long Load(char *name, struct EXEC *header);
1192  */
1193
1194 void psxBios_Load() { // 0x42
1195         EXE_HEADER eheader;
1196         void *pa1;
1197
1198 #ifdef PSXBIOS_LOG
1199         PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1200 #endif
1201
1202         pa1 = Ra1;
1203         if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1204                 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
1205                 v0 = 1;
1206         } else v0 = 0;
1207
1208         pc0 = ra;
1209 }
1210
1211 /*
1212  *      int Exec(struct EXEC *header , int argc , char **argv);
1213  */
1214
1215 void psxBios_Exec() { // 43
1216         EXEC *header = (EXEC*)Ra0;
1217         u32 tmp;
1218
1219 #ifdef PSXBIOS_LOG
1220         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1221 #endif
1222
1223         header->_sp = sp;
1224         header->_fp = fp;
1225         header->_sp = sp;
1226         header->_gp = gp;
1227         header->ret = ra;
1228         header->base = s0;
1229
1230         if (header->S_addr != 0) {
1231                 tmp = header->S_addr + header->s_size;
1232                 sp = tmp;
1233                 fp = sp;
1234         }
1235
1236         gp = header->gp0;
1237
1238         s0 = a0;
1239
1240         a0 = a1;
1241         a1 = a2;
1242
1243         ra = 0x8000;
1244         pc0 = header->_pc0;
1245 }
1246
1247 void psxBios_FlushCache() { // 44
1248 #ifdef PSXBIOS_LOG
1249         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1250 #endif
1251
1252         pc0 = ra;
1253 }
1254
1255 void psxBios_GPU_dw() { // 0x46
1256         int size;
1257         s32 *ptr;
1258
1259 #ifdef PSXBIOS_LOG
1260         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1261 #endif
1262
1263         GPU_writeData(0xa0000000);
1264         GPU_writeData((a1<<16)|(a0&0xffff));
1265         GPU_writeData((a3<<16)|(a2&0xffff));
1266         size = (a2*a3+1)/2;
1267         ptr = (s32*)PSXM(Rsp[4]);  //that is correct?
1268         do {
1269                 GPU_writeData(SWAP32(*ptr));
1270                 ptr++;
1271         } while(--size);
1272
1273         pc0 = ra;
1274 }
1275
1276 void psxBios_mem2vram() { // 0x47
1277         int size;
1278
1279         GPU_writeData(0xa0000000);
1280         GPU_writeData((a1<<16)|(a0&0xffff));
1281         GPU_writeData((a3<<16)|(a2&0xffff));
1282         size = (a2*a3+1)/2;
1283         GPU_writeStatus(0x04000002);
1284         psxHwWrite32(0x1f8010f4,0);
1285         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1286         psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1287         psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1288         psxHwWrite32(0x1f8010a8,0x01000201);
1289
1290         pc0 = ra;
1291 }
1292
1293 void psxBios_SendGPU() { // 0x48
1294         GPU_writeStatus(a0);
1295         gpuSyncPluginSR();
1296         pc0 = ra;
1297 }
1298
1299 void psxBios_GPU_cw() { // 0x49
1300         GPU_writeData(a0);
1301         pc0 = ra;
1302 }
1303
1304 void psxBios_GPU_cwb() { // 0x4a
1305         s32 *ptr = (s32*)Ra0;
1306         int size = a1;
1307         while(size--) {
1308                 GPU_writeData(SWAP32(*ptr));
1309                 ptr++;
1310         }
1311
1312         pc0 = ra;
1313 }
1314
1315 void psxBios_GPU_SendPackets() { //4b:
1316         GPU_writeStatus(0x04000002);
1317         psxHwWrite32(0x1f8010f4,0);
1318         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1319         psxHwWrite32(0x1f8010a0,a0);
1320         psxHwWrite32(0x1f8010a4,0);
1321         psxHwWrite32(0x1f8010a8,0x010000401);
1322         pc0 = ra;
1323 }
1324
1325 void psxBios_sys_a0_4c() { // 0x4c GPU relate
1326         psxHwWrite32(0x1f8010a8,0x00000401);
1327         GPU_writeData(0x0400000);
1328         GPU_writeData(0x0200000);
1329         GPU_writeData(0x0100000);
1330         v0 = 0x1f801814;
1331         pc0 = ra;
1332 }
1333
1334 void psxBios_GPU_GetGPUStatus() { // 0x4d
1335         v0 = GPU_readStatus();
1336         pc0 = ra;
1337 }
1338
1339 #undef s_addr
1340
1341 void psxBios_LoadExec() { // 51
1342         EXEC *header = (EXEC*)PSXM(0xf000);
1343         u32 s_addr, s_size;
1344
1345 #ifdef PSXBIOS_LOG
1346         PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1347 #endif
1348         s_addr = a1; s_size = a2;
1349
1350         a1 = 0xf000;
1351         psxBios_Load();
1352
1353         header->S_addr = s_addr;
1354         header->s_size = s_size;
1355
1356         a0 = 0xf000; a1 = 0; a2 = 0;
1357         psxBios_Exec();
1358 }
1359
1360 void psxBios__bu_init() { // 70
1361 #ifdef PSXBIOS_LOG
1362         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1363 #endif
1364
1365         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1366         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1367
1368         pc0 = ra;
1369 }
1370
1371 void psxBios__96_init() { // 71
1372 #ifdef PSXBIOS_LOG
1373         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1374 #endif
1375
1376         pc0 = ra;
1377 }
1378
1379 void psxBios__96_remove() { // 72
1380 #ifdef PSXBIOS_LOG
1381         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1382 #endif
1383
1384         pc0 = ra;
1385 }
1386
1387 void psxBios_SetMem() { // 9f
1388         u32 new = psxHu32(0x1060);
1389
1390 #ifdef PSXBIOS_LOG
1391         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1392 #endif
1393
1394         switch(a0) {
1395                 case 2:
1396                         psxHu32ref(0x1060) = SWAP32(new);
1397                         psxMu32ref(0x060) = a0;
1398                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1399                         break;
1400
1401                 case 8:
1402                         psxHu32ref(0x1060) = SWAP32(new | 0x300);
1403                         psxMu32ref(0x060) = a0;
1404                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1405
1406                 default:
1407                         SysPrintf("Effective memory must be 2/8 MBytes\n");
1408                 break;
1409         }
1410
1411         pc0 = ra;
1412 }
1413
1414 void psxBios__card_info() { // ab
1415 #ifdef PSXBIOS_LOG
1416         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1417 #endif
1418         u32 ret;
1419         card_active_chan = a0;
1420
1421         switch (card_active_chan)
1422         {
1423         case 0x00: case 0x01: case 0x02: case 0x03:
1424                 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1425                 break;
1426         case 0x10: case 0x11: case 0x12: case 0x13:
1427                 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1428                 break;
1429         default:
1430 #ifdef PSXBIOS_LOG
1431                 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1432 #endif
1433                 ret = 0x11;
1434                 break;
1435         }
1436
1437 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1438 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1439         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1440         DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
1441
1442         v0 = 1; pc0 = ra;
1443 }
1444
1445 void psxBios__card_load() { // ac
1446 #ifdef PSXBIOS_LOG
1447         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1448 #endif
1449
1450         card_active_chan = a0;
1451
1452 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1453         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1454
1455         v0 = 1; pc0 = ra;
1456 }
1457
1458 /* System calls B0 */
1459
1460 void psxBios_SetRCnt() { // 02
1461 #ifdef PSXBIOS_LOG
1462         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1463 #endif
1464
1465         a0&= 0x3;
1466         if (a0 != 3) {
1467                 u32 mode=0;
1468
1469                 psxRcntWtarget(a0, a1);
1470                 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1471                 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1472                 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1473                 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1474                 else         { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1475
1476                 psxRcntWmode(a0, mode);
1477         }
1478         pc0 = ra;
1479 }
1480
1481 void psxBios_GetRCnt() { // 03
1482 #ifdef PSXBIOS_LOG
1483         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1484 #endif
1485
1486         a0&= 0x3;
1487         if (a0 != 3) v0 = psxRcntRcount(a0);
1488         else v0 = 0;
1489         pc0 = ra;
1490 }
1491
1492 void psxBios_StartRCnt() { // 04
1493 #ifdef PSXBIOS_LOG
1494         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1495 #endif
1496
1497         a0&= 0x3;
1498         if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1499         else psxHu32ref(0x1074)|= SWAPu32(0x1);
1500         v0 = 1; pc0 = ra;
1501 }
1502
1503 void psxBios_StopRCnt() { // 05
1504 #ifdef PSXBIOS_LOG
1505         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1506 #endif
1507
1508         a0&= 0x3;
1509         if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1510         else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1511         pc0 = ra;
1512 }
1513
1514 void psxBios_ResetRCnt() { // 06
1515 #ifdef PSXBIOS_LOG
1516         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1517 #endif
1518
1519         a0&= 0x3;
1520         if (a0 != 3) {
1521                 psxRcntWmode(a0, 0);
1522                 psxRcntWtarget(a0, 0);
1523                 psxRcntWcount(a0, 0);
1524         }
1525         pc0 = ra;
1526 }
1527
1528
1529 /* gets ev for use with Event */
1530 #define GetEv() \
1531         ev = (a0 >> 24) & 0xf; \
1532         if (ev == 0xf) ev = 0x5; \
1533         ev*= 32; \
1534         ev+= a0&0x1f;
1535
1536 /* gets spec for use with Event */
1537 #define GetSpec() \
1538         spec = 0; \
1539         switch (a1) { \
1540                 case 0x0301: spec = 16; break; \
1541                 case 0x0302: spec = 17; break; \
1542                 default: \
1543                         for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1544                         break; \
1545         }
1546
1547 void psxBios_DeliverEvent() { // 07
1548         int ev, spec;
1549         int i;
1550
1551         GetEv();
1552         GetSpec();
1553
1554 #ifdef PSXBIOS_LOG
1555         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1556 #endif
1557
1558         DeliverEvent(ev, spec);
1559
1560         pc0 = ra;
1561 }
1562
1563 void psxBios_OpenEvent() { // 08
1564         int ev, spec;
1565         int i;
1566
1567         GetEv();
1568         GetSpec();
1569
1570 #ifdef PSXBIOS_LOG
1571         PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1572 #endif
1573
1574         Event[ev][spec].status = EvStWAIT;
1575         Event[ev][spec].mode = a2;
1576         Event[ev][spec].fhandler = a3;
1577
1578         v0 = ev | (spec << 8);
1579         pc0 = ra;
1580 }
1581
1582 void psxBios_CloseEvent() { // 09
1583         int ev, spec;
1584
1585         ev   = a0 & 0xff;
1586         spec = (a0 >> 8) & 0xff;
1587
1588 #ifdef PSXBIOS_LOG
1589         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1590 #endif
1591
1592         Event[ev][spec].status = EvStUNUSED;
1593
1594         v0 = 1; pc0 = ra;
1595 }
1596
1597 void psxBios_WaitEvent() { // 0a
1598         int ev, spec;
1599
1600         ev   = a0 & 0xff;
1601         spec = (a0 >> 8) & 0xff;
1602 #ifdef PSXBIOS_LOG
1603         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1604 #endif
1605         if (Event[ev][spec].status == EvStUNUSED)
1606         {
1607                 v0 = 0;
1608                 pc0 = ra;
1609                 return;
1610         }
1611
1612         if (Event[ev][spec].status == EvStALREADY)
1613         {
1614                 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1615                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1616                 v0 = 1;
1617                 pc0 = ra;
1618                 return;
1619         }
1620
1621         v0 = 0;
1622         pc0 = ra;
1623 }
1624
1625 void psxBios_TestEvent() { // 0b
1626         int ev, spec;
1627
1628         ev   = a0 & 0xff;
1629         spec = (a0 >> 8) & 0xff;
1630
1631         if (Event[ev][spec].status == EvStALREADY) {
1632                 Event[ev][spec].status = EvStACTIVE; v0 = 1;
1633         } else v0 = 0;
1634
1635 #ifdef PSXBIOS_LOG
1636         PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1637 #endif
1638
1639         pc0 = ra;
1640 }
1641
1642 void psxBios_EnableEvent() { // 0c
1643         int ev, spec;
1644
1645         ev   = a0 & 0xff;
1646         spec = (a0 >> 8) & 0xff;
1647
1648 #ifdef PSXBIOS_LOG
1649         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1650 #endif
1651
1652         Event[ev][spec].status = EvStACTIVE;
1653
1654         v0 = 1; pc0 = ra;
1655 }
1656
1657 void psxBios_DisableEvent() { // 0d
1658         int ev, spec;
1659
1660         ev   = a0 & 0xff;
1661         spec = (a0 >> 8) & 0xff;
1662
1663 #ifdef PSXBIOS_LOG
1664         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1665 #endif
1666
1667         Event[ev][spec].status = EvStWAIT;
1668
1669         v0 = 1; pc0 = ra;
1670 }
1671
1672 /*
1673  *      long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1674  */
1675
1676 void psxBios_OpenTh() { // 0e
1677         int th;
1678
1679         for (th=1; th<8; th++)
1680         {
1681                 if (Thread[th].status == 0) break;
1682
1683         }
1684         if (th == 8) {
1685                 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1686                 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1687 #ifdef PSXBIOS_LOG
1688                 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1689 #endif
1690                 v0 = 0xffffffff;
1691                 pc0 = ra;
1692                 return;
1693         }
1694 #ifdef PSXBIOS_LOG
1695         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1696 #endif
1697
1698         Thread[th].status = 1;
1699         Thread[th].func    = a0;
1700         Thread[th].reg[29] = a1;
1701         Thread[th].reg[28] = a2;
1702
1703         v0 = th; pc0 = ra;
1704 }
1705
1706 /*
1707  *      int CloseTh(long thread);
1708  */
1709
1710 void psxBios_CloseTh() { // 0f
1711         int th = a0 & 0xff;
1712
1713 #ifdef PSXBIOS_LOG
1714         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1715 #endif
1716
1717         if (Thread[th].status == 0) {
1718                 v0 = 0;
1719         } else {
1720                 Thread[th].status = 0;
1721                 v0 = 1;
1722         }
1723
1724         pc0 = ra;
1725 }
1726
1727 /*
1728  *      int ChangeTh(long thread);
1729  */
1730
1731 void psxBios_ChangeTh() { // 10
1732         int th = a0 & 0xff;
1733
1734 #ifdef PSXBIOS_LOG
1735 //      PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1736 #endif
1737
1738         if (Thread[th].status == 0 || CurThread == th) {
1739                 v0 = 0;
1740
1741                 pc0 = ra;
1742         } else {
1743                 v0 = 1;
1744
1745                 if (Thread[CurThread].status == 2) {
1746                         Thread[CurThread].status = 1;
1747                         Thread[CurThread].func = ra;
1748                         memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1749                 }
1750
1751                 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1752                 pc0 = Thread[th].func;
1753                 Thread[th].status = 2;
1754                 CurThread = th;
1755         }
1756 }
1757
1758 void psxBios_InitPAD() { // 0x12
1759 #ifdef PSXBIOS_LOG
1760         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1761 #endif
1762
1763         pad_buf1 = (char*)Ra0;
1764         pad_buf1len = a1;
1765         pad_buf2 = (char*)Ra2;
1766         pad_buf2len = a3;
1767
1768         v0 = 1; pc0 = ra;
1769 }
1770
1771 void psxBios_StartPAD() { // 13
1772 #ifdef PSXBIOS_LOG
1773         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1774 #endif
1775
1776         psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1777         psxRegs.CP0.n.Status |= 0x401;
1778         pc0 = ra;
1779 }
1780
1781 void psxBios_StopPAD() { // 14
1782 #ifdef PSXBIOS_LOG
1783         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1784 #endif
1785         if (pad_buf == 0){
1786         pad_buf1 = NULL;
1787         pad_buf2 = NULL;
1788         }
1789         pc0 = ra;
1790 }
1791
1792 void psxBios_PAD_init() { // 15
1793 #ifdef PSXBIOS_LOG
1794         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1795 #endif
1796         if (!(a0 == 0x20000000 || a0 == 0x20000001))
1797         {
1798                 v0 = 0;
1799                 pc0 = ra;
1800                 return;
1801         }
1802         psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1803         pad_buf = (int *)Ra1;
1804         *pad_buf = -1;
1805         psxRegs.CP0.n.Status |= 0x401;
1806         v0 = 2;
1807         pc0 = ra;
1808 }
1809
1810 void psxBios_PAD_dr() { // 16
1811 #ifdef PSXBIOS_LOG
1812         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1813 #endif
1814
1815         v0 = -1; pc0 = ra;
1816 }
1817
1818 void psxBios_ReturnFromException() { // 17
1819         LoadRegs();
1820
1821         pc0 = psxRegs.CP0.n.EPC;
1822         if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1823
1824         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1825                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1826 }
1827
1828 void psxBios_ResetEntryInt() { // 18
1829 #ifdef PSXBIOS_LOG
1830         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1831 #endif
1832
1833         jmp_int = NULL;
1834         pc0 = ra;
1835 }
1836
1837 void psxBios_HookEntryInt() { // 19
1838 #ifdef PSXBIOS_LOG
1839         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1840 #endif
1841
1842         jmp_int = (u32*)Ra0;
1843         pc0 = ra;
1844 }
1845
1846 void psxBios_UnDeliverEvent() { // 0x20
1847         int ev, spec;
1848         int i;
1849
1850         GetEv();
1851         GetSpec();
1852
1853 #ifdef PSXBIOS_LOG
1854         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1855 #endif
1856
1857         if (Event[ev][spec].status == EvStALREADY &&
1858                 Event[ev][spec].mode == EvMdNOINTR)
1859                 Event[ev][spec].status = EvStACTIVE;
1860
1861         pc0 = ra;
1862 }
1863
1864 char ffile[64], *pfile;
1865 int nfile;
1866 static void buopen(int mcd, u8 *ptr, u8 *cfg)
1867 {
1868         int i;
1869         u8 *fptr = ptr;
1870
1871         strcpy(FDesc[1 + mcd].name, Ra0+5);
1872         FDesc[1 + mcd].offset = 0;
1873         FDesc[1 + mcd].mode   = a1;
1874
1875         for (i=1; i<16; i++) {
1876                 fptr += 128;
1877                 if ((*fptr & 0xF0) != 0x50) continue;
1878                 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
1879                 FDesc[1 + mcd].mcfile = i;
1880                 SysPrintf("open %s\n", fptr+0xa);
1881                 v0 = 1 + mcd;
1882                 break;
1883         }
1884         if (a1 & 0x200 && v0 == -1) { /* FCREAT */
1885                 fptr = ptr;
1886                 for (i=1; i<16; i++) {
1887                         int j, xor, nblk = a1 >> 16;
1888                         u8 *pptr, *fptr2;
1889
1890                         fptr += 128;
1891                         if ((*fptr & 0xF0) != 0xa0) continue;
1892
1893                         FDesc[1 + mcd].mcfile = i;
1894                         fptr[0] = 0x51;
1895                         fptr[4] = 0x00;
1896                         fptr[5] = 0x20 * nblk;
1897                         fptr[6] = 0x00;
1898                         fptr[7] = 0x00;
1899                         strcpy(fptr+0xa, FDesc[1 + mcd].name);
1900                         pptr = fptr2 = fptr;
1901                         for(j=2; j<=nblk; j++) {
1902                                 int k;
1903                                 for(i++; i<16; i++) {
1904                                         fptr2 += 128;
1905
1906                                         memset(fptr2, 0, 128);
1907                                         fptr2[0] = j < nblk ? 0x52 : 0x53;
1908                                         pptr[8] = i - 1;
1909                                         pptr[9] = 0;
1910                                         for (k=0, xor=0; k<127; k++) xor^= pptr[k];
1911                                         pptr[127] = xor;
1912                                         pptr = fptr2;
1913                                         break;
1914                                 }
1915                                 /* shouldn't this return ENOSPC if i == 16? */
1916                         }
1917                         pptr[8] = pptr[9] = 0xff;
1918                         for (j=0, xor=0; j<127; j++) xor^= pptr[j];
1919                         pptr[127] = xor;
1920                         SysPrintf("openC %s %d\n", ptr, nblk);
1921                         v0 = 1 + mcd;
1922                         /* just go ahead and resave them all */
1923                         SaveMcd(cfg, ptr, 128, 128 * 15);
1924                         break;
1925                 }
1926                 /* shouldn't this return ENOSPC if i == 16? */
1927         }
1928 }
1929
1930 /*
1931  *      int open(char *name , int mode);
1932  */
1933
1934 void psxBios_open() { // 0x32
1935         int i;
1936         char *ptr;
1937         void *pa0 = Ra0;
1938
1939 #ifdef PSXBIOS_LOG
1940         PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
1941 #endif
1942
1943         v0 = -1;
1944
1945         if (pa0) {
1946                 if (!strncmp(pa0, "bu00", 4)) {
1947                         buopen(1, Mcd1Data, Config.Mcd1);
1948                 }
1949
1950                 if (!strncmp(pa0, "bu10", 4)) {
1951                         buopen(2, Mcd2Data, Config.Mcd2);
1952                 }
1953         }
1954
1955         pc0 = ra;
1956 }
1957
1958 /*
1959  *      int lseek(int fd , int offset , int whence);
1960  */
1961
1962 void psxBios_lseek() { // 0x33
1963 #ifdef PSXBIOS_LOG
1964         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
1965 #endif
1966
1967         switch (a2) {
1968                 case 0: // SEEK_SET
1969                         FDesc[a0].offset = a1;
1970                         v0 = a1;
1971 //                      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1972 //                      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1973                         break;
1974
1975                 case 1: // SEEK_CUR
1976                         FDesc[a0].offset+= a1;
1977                         v0 = FDesc[a0].offset;
1978                         break;
1979         }
1980
1981         pc0 = ra;
1982 }
1983
1984
1985 /*
1986  *      int read(int fd , void *buf , int nbytes);
1987  */
1988
1989 void psxBios_read() { // 0x34
1990         char *ptr;
1991         void *pa1 = Ra1;
1992
1993 #ifdef PSXBIOS_LOG
1994         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
1995 #endif
1996
1997         v0 = -1;
1998
1999         if (pa1) {
2000                 switch (a0) {
2001                         case 2: buread(pa1, 1, a2); break;
2002                         case 3: buread(pa1, 2, a2); break;
2003                 }
2004         }
2005
2006         pc0 = ra;
2007 }
2008
2009 /*
2010  *      int write(int fd , void *buf , int nbytes);
2011  */
2012
2013 void psxBios_write() { // 0x35/0x03
2014         char *ptr;
2015         void *pa1 = Ra1;
2016
2017 #ifdef PSXBIOS_LOG
2018         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2019 #endif
2020
2021         v0 = -1;
2022         if (!pa1) {
2023                 pc0 = ra;
2024                 return;
2025         }
2026
2027         if (a0 == 1) { // stdout
2028                 char *ptr = pa1;
2029
2030                 v0 = a2;
2031                 while (a2 > 0) {
2032                         SysPrintf("%c", *ptr++); a2--;
2033                 }
2034                 pc0 = ra; return;
2035         }
2036
2037         switch (a0) {
2038                 case 2: buwrite(pa1, 1, a2); break;
2039                 case 3: buwrite(pa1, 2, a2); break;
2040         }
2041
2042         pc0 = ra;
2043 }
2044
2045 /*
2046  *      int close(int fd);
2047  */
2048
2049 void psxBios_close() { // 0x36
2050 #ifdef PSXBIOS_LOG
2051         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2052 #endif
2053
2054         v0 = a0;
2055         pc0 = ra;
2056 }
2057
2058 void psxBios_putchar() { // 3d
2059         SysPrintf("%c", (char)a0);
2060         pc0 = ra;
2061 }
2062
2063 void psxBios_puts() { // 3e/3f
2064         SysPrintf("%s", Ra0);
2065         pc0 = ra;
2066 }
2067
2068 char ffile[64], *pfile;
2069 int nfile;
2070
2071 #define bufile(mcd) { \
2072         while (nfile < 16) { \
2073                 int match=1; \
2074  \
2075                 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
2076                 nfile++; \
2077                 if ((*ptr & 0xF0) != 0x50) continue; \
2078                 /* Bug link files show up as free block. */ \
2079                 if (!ptr[0xa]) continue; \
2080                 ptr+= 0xa; \
2081                 if (pfile[0] == 0) { \
2082                         strncpy(dir->name, ptr, sizeof(dir->name)); \
2083                         dir->name[sizeof(dir->name) - 1] = '\0'; \
2084                 } else for (i=0; i<20; i++) { \
2085                         if (pfile[i] == ptr[i]) { \
2086                                                                 dir->name[i] = ptr[i]; continue; } \
2087                         if (pfile[i] == '?') { \
2088                                 dir->name[i] = ptr[i]; continue; } \
2089                         if (pfile[i] == '*') { \
2090                                 strcpy(dir->name+i, ptr+i); break; } \
2091                         match = 0; break; \
2092                 } \
2093                 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
2094                 if (match == 0) { continue; } \
2095                 dir->size = 8192; \
2096                 v0 = _dir; \
2097                 break; \
2098         } \
2099 }
2100
2101 /*
2102  *      struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2103  */
2104
2105 void psxBios_firstfile() { // 42
2106         struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
2107         void *pa0 = Ra0;
2108         u32 _dir = a1;
2109         char *ptr;
2110         int i;
2111
2112 #ifdef PSXBIOS_LOG
2113         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2114 #endif
2115
2116         v0 = 0;
2117
2118         if (pa0) {
2119                 strcpy(ffile, pa0);
2120                 pfile = ffile+5;
2121                 nfile = 1;
2122                 if (!strncmp(pa0, "bu00", 4)) {
2123                         // firstfile() calls _card_read() internally, so deliver it's event
2124                         DeliverEvent(0x11, 0x2);
2125                         bufile(1);
2126                 } else if (!strncmp(pa0, "bu10", 4)) {
2127                         // firstfile() calls _card_read() internally, so deliver it's event
2128                         DeliverEvent(0x11, 0x2);
2129                         bufile(2);
2130                 }
2131         }
2132
2133         pc0 = ra;
2134 }
2135
2136 /*
2137  *      struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2138  */
2139
2140 void psxBios_nextfile() { // 43
2141         struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2142         u32 _dir = a0;
2143         char *ptr;
2144         int i;
2145
2146 #ifdef PSXBIOS_LOG
2147         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2148 #endif
2149
2150         v0 = 0;
2151
2152         if (!strncmp(ffile, "bu00", 4)) {
2153                 bufile(1);
2154         }
2155
2156         if (!strncmp(ffile, "bu10", 4)) {
2157                 bufile(2);
2158         }
2159
2160         pc0 = ra;
2161 }
2162
2163 #define burename(mcd) { \
2164         for (i=1; i<16; i++) { \
2165                 int namelen, j, xor = 0; \
2166                 ptr = Mcd##mcd##Data + 128 * i; \
2167                 if ((*ptr & 0xF0) != 0x50) continue; \
2168                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2169                 namelen = strlen(Ra1+5); \
2170                 memcpy(ptr+0xa, Ra1+5, namelen); \
2171                 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2172                 for (j=0; j<127; j++) xor^= ptr[j]; \
2173                 ptr[127] = xor; \
2174                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2175                 v0 = 1; \
2176                 break; \
2177         } \
2178 }
2179
2180 /*
2181  *      int rename(char *old, char *new);
2182  */
2183
2184 void psxBios_rename() { // 44
2185         void *pa0 = Ra0;
2186         void *pa1 = Ra1;
2187         char *ptr;
2188         int i;
2189
2190 #ifdef PSXBIOS_LOG
2191         PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2192 #endif
2193
2194         v0 = 0;
2195
2196         if (pa0 && pa1) {
2197                 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2198                         burename(1);
2199                 }
2200
2201                 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2202                         burename(2);
2203                 }
2204         }
2205
2206         pc0 = ra;
2207 }
2208
2209
2210 #define budelete(mcd) { \
2211         for (i=1; i<16; i++) { \
2212                 ptr = Mcd##mcd##Data + 128 * i; \
2213                 if ((*ptr & 0xF0) != 0x50) continue; \
2214                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2215                 *ptr = (*ptr & 0xf) | 0xA0; \
2216                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2217                 SysPrintf("delete %s\n", ptr+0xa); \
2218                 v0 = 1; \
2219                 break; \
2220         } \
2221 }
2222
2223 /*
2224  *      int delete(char *name);
2225  */
2226
2227 void psxBios_delete() { // 45
2228         void *pa0 = Ra0;
2229         char *ptr;
2230         int i;
2231
2232 #ifdef PSXBIOS_LOG
2233         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2234 #endif
2235
2236         v0 = 0;
2237
2238         if (pa0) {
2239                 if (!strncmp(pa0, "bu00", 4)) {
2240                         budelete(1);
2241                 }
2242
2243                 if (!strncmp(pa0, "bu10", 4)) {
2244                         budelete(2);
2245                 }
2246         }
2247
2248         pc0 = ra;
2249 }
2250
2251 void psxBios_InitCARD() { // 4a
2252 #ifdef PSXBIOS_LOG
2253         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2254 #endif
2255
2256         CardState = 0;
2257
2258         pc0 = ra;
2259 }
2260
2261 void psxBios_StartCARD() { // 4b
2262 #ifdef PSXBIOS_LOG
2263         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2264 #endif
2265
2266         if (CardState == 0) CardState = 1;
2267
2268         pc0 = ra;
2269 }
2270
2271 void psxBios_StopCARD() { // 4c
2272 #ifdef PSXBIOS_LOG
2273         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2274 #endif
2275
2276         if (CardState == 1) CardState = 0;
2277
2278         pc0 = ra;
2279 }
2280
2281 void psxBios__card_write() { // 0x4e
2282         void *pa2 = Ra2;
2283         int port;
2284
2285 #ifdef PSXBIOS_LOG
2286         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2287 #endif
2288         /* Function also accepts sector 400h (a bug) */
2289         if (!(a1 <= 0x400))
2290         {
2291                 /* Invalid sectors */
2292                 v0 = 0; pc0 = ra;
2293                 return;
2294         }
2295         card_active_chan = a0;
2296         port = a0 >> 4;
2297
2298         if (pa2) {
2299                 if (port == 0) {
2300                         memcpy(Mcd1Data + a1 * 128, pa2, 128);
2301                         SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2302                 } else {
2303                         memcpy(Mcd2Data + a1 * 128, pa2, 128);
2304                         SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2305                 }
2306         }
2307
2308         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2309 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2310
2311         v0 = 1; pc0 = ra;
2312 }
2313
2314 void psxBios__card_read() { // 0x4f
2315         void *pa2 = Ra2;
2316         int port;
2317
2318 #ifdef PSXBIOS_LOG
2319         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2320 #endif
2321         /* Function also accepts sector 400h (a bug) */
2322         if (!(a1 <= 0x400))
2323         {
2324                 /* Invalid sectors */
2325                 v0 = 0; pc0 = ra;
2326                 return;
2327         }
2328         card_active_chan = a0;
2329         port = a0 >> 4;
2330
2331         if (pa2) {
2332                 if (port == 0) {
2333                         memcpy(pa2, Mcd1Data + a1 * 128, 128);
2334                 } else {
2335                         memcpy(pa2, Mcd2Data + a1 * 128, 128);
2336                 }
2337         }
2338
2339         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2340 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2341
2342         v0 = 1; pc0 = ra;
2343 }
2344
2345 void psxBios__new_card() { // 0x50
2346 #ifdef PSXBIOS_LOG
2347         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2348 #endif
2349
2350         pc0 = ra;
2351 }
2352
2353 void psxBios_Krom2RawAdd() { // 0x51
2354         int i = 0;
2355
2356         const u32 table_8140[][2] = {
2357                 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2358                 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2359                 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2360                 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2361                 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2362                 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2363                 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2364                 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2365                 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2366                 {0xffff, 0}
2367         };
2368
2369         const u32 table_889f[][2] = {
2370                 {0x889f, 0x3d68},  {0x8900, 0x40ec},  {0x897f, 0x4fb0},  {0x8a00, 0x56f4},
2371                 {0x8a7f, 0x65b8},  {0x8b00, 0x6cfc},  {0x8b7f, 0x7bc0},  {0x8c00, 0x8304},
2372                 {0x8c7f, 0x91c8},  {0x8d00, 0x990c},  {0x8d7f, 0xa7d0},  {0x8e00, 0xaf14},
2373                 {0x8e7f, 0xbdd8},  {0x8f00, 0xc51c},  {0x8f7f, 0xd3e0},  {0x9000, 0xdb24},
2374                 {0x907f, 0xe9e8},  {0x9100, 0xf12c},  {0x917f, 0xfff0},  {0x9200, 0x10734},
2375                 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2376                 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2377                 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2378                 {0xffff, 0}
2379         };
2380
2381         if (a0 >= 0x8140 && a0 <= 0x84be) {
2382                 while (table_8140[i][0] <= a0) i++;
2383                 a0 -= table_8140[i - 1][0];
2384                 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2385         } else if (a0 >= 0x889f && a0 <= 0x9872) {
2386                 while (table_889f[i][0] <= a0) i++;
2387                 a0 -= table_889f[i - 1][0];
2388                 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2389         } else {
2390                 v0 = 0xffffffff;
2391         }
2392
2393         pc0 = ra;
2394 }
2395
2396 void psxBios_GetC0Table() { // 56
2397 #ifdef PSXBIOS_LOG
2398         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2399 #endif
2400
2401         v0 = 0x674; pc0 = ra;
2402 }
2403
2404 void psxBios_GetB0Table() { // 57
2405 #ifdef PSXBIOS_LOG
2406         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2407 #endif
2408
2409         v0 = 0x874; pc0 = ra;
2410 }
2411
2412 void psxBios__card_chan() { // 0x58
2413 #ifdef PSXBIOS_LOG
2414         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2415 #endif
2416
2417         v0 = card_active_chan;
2418         pc0 = ra;
2419 }
2420
2421 void psxBios_ChangeClearPad() { // 5b
2422 #ifdef PSXBIOS_LOG
2423         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2424 #endif
2425
2426         pc0 = ra;
2427 }
2428
2429 /* System calls C0 */
2430
2431 /*
2432  * int SysEnqIntRP(int index , long *queue);
2433  */
2434
2435 void psxBios_SysEnqIntRP() { // 02
2436 #ifdef PSXBIOS_LOG
2437         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2438 #endif
2439
2440         SysIntRP[a0] = a1;
2441
2442         v0 = 0; pc0 = ra;
2443 }
2444
2445 /*
2446  * int SysDeqIntRP(int index , long *queue);
2447  */
2448
2449 void psxBios_SysDeqIntRP() { // 03
2450 #ifdef PSXBIOS_LOG
2451         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2452 #endif
2453
2454         SysIntRP[a0] = 0;
2455
2456         v0 = 0; pc0 = ra;
2457 }
2458
2459 void psxBios_ChangeClearRCnt() { // 0a
2460         u32 *ptr;
2461
2462 #ifdef PSXBIOS_LOG
2463         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2464 #endif
2465
2466         ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2467         v0 = *ptr;
2468         *ptr = a1;
2469
2470 //      psxRegs.CP0.n.Status|= 0x404;
2471         pc0 = ra;
2472 }
2473
2474 void psxBios_dummy() {
2475 #ifdef PSXBIOS_LOG
2476         PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2477 #endif
2478         pc0 = ra;
2479 }
2480
2481 void (*biosA0[256])();
2482 void (*biosB0[256])();
2483 void (*biosC0[256])();
2484
2485 #include "sjisfont.h"
2486
2487 void psxBiosInit() {
2488         u32 base, size;
2489         u32 *ptr;
2490         int i;
2491         uLongf len;
2492
2493         for(i = 0; i < 256; i++) {
2494                 biosA0[i] = NULL;
2495                 biosB0[i] = NULL;
2496                 biosC0[i] = NULL;
2497         }
2498         biosA0[0x3e] = psxBios_puts;
2499         biosA0[0x3f] = psxBios_printf;
2500
2501         biosB0[0x3d] = psxBios_putchar;
2502         biosB0[0x3f] = psxBios_puts;
2503
2504         if (!Config.HLE) return;
2505
2506         for(i = 0; i < 256; i++) {
2507                 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2508                 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2509                 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2510         }
2511
2512         biosA0[0x00] = psxBios_open;
2513         biosA0[0x01] = psxBios_lseek;
2514         biosA0[0x02] = psxBios_read;
2515         biosA0[0x03] = psxBios_write;
2516         biosA0[0x04] = psxBios_close;
2517         //biosA0[0x05] = psxBios_ioctl;
2518         //biosA0[0x06] = psxBios_exit;
2519         //biosA0[0x07] = psxBios_sys_a0_07;
2520         biosA0[0x08] = psxBios_getc;
2521         biosA0[0x09] = psxBios_putc;
2522         biosA0[0x0a] = psxBios_todigit;
2523         //biosA0[0x0b] = psxBios_atof;
2524         //biosA0[0x0c] = psxBios_strtoul;
2525         //biosA0[0x0d] = psxBios_strtol;
2526         biosA0[0x0e] = psxBios_abs;
2527         biosA0[0x0f] = psxBios_labs;
2528         biosA0[0x10] = psxBios_atoi;
2529         biosA0[0x11] = psxBios_atol;
2530         //biosA0[0x12] = psxBios_atob;
2531         biosA0[0x13] = psxBios_setjmp;
2532         biosA0[0x14] = psxBios_longjmp;
2533         biosA0[0x15] = psxBios_strcat;
2534         biosA0[0x16] = psxBios_strncat;
2535         biosA0[0x17] = psxBios_strcmp;
2536         biosA0[0x18] = psxBios_strncmp;
2537         biosA0[0x19] = psxBios_strcpy;
2538         biosA0[0x1a] = psxBios_strncpy;
2539         biosA0[0x1b] = psxBios_strlen;
2540         biosA0[0x1c] = psxBios_index;
2541         biosA0[0x1d] = psxBios_rindex;
2542         biosA0[0x1e] = psxBios_strchr;
2543         biosA0[0x1f] = psxBios_strrchr;
2544         biosA0[0x20] = psxBios_strpbrk;
2545         biosA0[0x21] = psxBios_strspn;
2546         biosA0[0x22] = psxBios_strcspn;
2547         biosA0[0x23] = psxBios_strtok;
2548         biosA0[0x24] = psxBios_strstr;
2549         biosA0[0x25] = psxBios_toupper;
2550         biosA0[0x26] = psxBios_tolower;
2551         biosA0[0x27] = psxBios_bcopy;
2552         biosA0[0x28] = psxBios_bzero;
2553         biosA0[0x29] = psxBios_bcmp;
2554         biosA0[0x2a] = psxBios_memcpy;
2555         biosA0[0x2b] = psxBios_memset;
2556         biosA0[0x2c] = psxBios_memmove;
2557         biosA0[0x2d] = psxBios_memcmp;
2558         biosA0[0x2e] = psxBios_memchr;
2559         biosA0[0x2f] = psxBios_rand;
2560         biosA0[0x30] = psxBios_srand;
2561         biosA0[0x31] = psxBios_qsort;
2562         //biosA0[0x32] = psxBios_strtod;
2563         biosA0[0x33] = psxBios_malloc;
2564         biosA0[0x34] = psxBios_free;
2565         //biosA0[0x35] = psxBios_lsearch;
2566         //biosA0[0x36] = psxBios_bsearch;
2567         biosA0[0x37] = psxBios_calloc;
2568         biosA0[0x38] = psxBios_realloc;
2569         biosA0[0x39] = psxBios_InitHeap;
2570         //biosA0[0x3a] = psxBios__exit;
2571         biosA0[0x3b] = psxBios_getchar;
2572         biosA0[0x3c] = psxBios_putchar;
2573         //biosA0[0x3d] = psxBios_gets;
2574         //biosA0[0x40] = psxBios_sys_a0_40;
2575         //biosA0[0x41] = psxBios_LoadTest;
2576         biosA0[0x42] = psxBios_Load;
2577         biosA0[0x43] = psxBios_Exec;
2578         biosA0[0x44] = psxBios_FlushCache;
2579         //biosA0[0x45] = psxBios_InstallInterruptHandler;
2580         biosA0[0x46] = psxBios_GPU_dw;
2581         biosA0[0x47] = psxBios_mem2vram;
2582         biosA0[0x48] = psxBios_SendGPU;
2583         biosA0[0x49] = psxBios_GPU_cw;
2584         biosA0[0x4a] = psxBios_GPU_cwb;
2585         biosA0[0x4b] = psxBios_GPU_SendPackets;
2586         biosA0[0x4c] = psxBios_sys_a0_4c;
2587         biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2588         //biosA0[0x4e] = psxBios_GPU_sync;
2589         //biosA0[0x4f] = psxBios_sys_a0_4f;
2590         //biosA0[0x50] = psxBios_sys_a0_50;
2591         biosA0[0x51] = psxBios_LoadExec;
2592         //biosA0[0x52] = psxBios_GetSysSp;
2593         //biosA0[0x53] = psxBios_sys_a0_53;
2594         //biosA0[0x54] = psxBios__96_init_a54;
2595         //biosA0[0x55] = psxBios__bu_init_a55;
2596         //biosA0[0x56] = psxBios__96_remove_a56;
2597         //biosA0[0x57] = psxBios_sys_a0_57;
2598         //biosA0[0x58] = psxBios_sys_a0_58;
2599         //biosA0[0x59] = psxBios_sys_a0_59;
2600         //biosA0[0x5a] = psxBios_sys_a0_5a;
2601         //biosA0[0x5b] = psxBios_dev_tty_init;
2602         //biosA0[0x5c] = psxBios_dev_tty_open;
2603         //biosA0[0x5d] = psxBios_sys_a0_5d;
2604         //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2605         //biosA0[0x5f] = psxBios_dev_cd_open;
2606         //biosA0[0x60] = psxBios_dev_cd_read;
2607         //biosA0[0x61] = psxBios_dev_cd_close;
2608         //biosA0[0x62] = psxBios_dev_cd_firstfile;
2609         //biosA0[0x63] = psxBios_dev_cd_nextfile;
2610         //biosA0[0x64] = psxBios_dev_cd_chdir;
2611         //biosA0[0x65] = psxBios_dev_card_open;
2612         //biosA0[0x66] = psxBios_dev_card_read;
2613         //biosA0[0x67] = psxBios_dev_card_write;
2614         //biosA0[0x68] = psxBios_dev_card_close;
2615         //biosA0[0x69] = psxBios_dev_card_firstfile;
2616         //biosA0[0x6a] = psxBios_dev_card_nextfile;
2617         //biosA0[0x6b] = psxBios_dev_card_erase;
2618         //biosA0[0x6c] = psxBios_dev_card_undelete;
2619         //biosA0[0x6d] = psxBios_dev_card_format;
2620         //biosA0[0x6e] = psxBios_dev_card_rename;
2621         //biosA0[0x6f] = psxBios_dev_card_6f;
2622         biosA0[0x70] = psxBios__bu_init;
2623         biosA0[0x71] = psxBios__96_init;
2624         biosA0[0x72] = psxBios__96_remove;
2625         //biosA0[0x73] = psxBios_sys_a0_73;
2626         //biosA0[0x74] = psxBios_sys_a0_74;
2627         //biosA0[0x75] = psxBios_sys_a0_75;
2628         //biosA0[0x76] = psxBios_sys_a0_76;
2629         //biosA0[0x77] = psxBios_sys_a0_77;
2630         //biosA0[0x78] = psxBios__96_CdSeekL;
2631         //biosA0[0x79] = psxBios_sys_a0_79;
2632         //biosA0[0x7a] = psxBios_sys_a0_7a;
2633         //biosA0[0x7b] = psxBios_sys_a0_7b;
2634         //biosA0[0x7c] = psxBios__96_CdGetStatus;
2635         //biosA0[0x7d] = psxBios_sys_a0_7d;
2636         //biosA0[0x7e] = psxBios__96_CdRead;
2637         //biosA0[0x7f] = psxBios_sys_a0_7f;
2638         //biosA0[0x80] = psxBios_sys_a0_80;
2639         //biosA0[0x81] = psxBios_sys_a0_81;
2640         //biosA0[0x82] = psxBios_sys_a0_82;
2641         //biosA0[0x83] = psxBios_sys_a0_83;
2642         //biosA0[0x84] = psxBios_sys_a0_84;
2643         //biosA0[0x85] = psxBios__96_CdStop;
2644         //biosA0[0x86] = psxBios_sys_a0_86;
2645         //biosA0[0x87] = psxBios_sys_a0_87;
2646         //biosA0[0x88] = psxBios_sys_a0_88;
2647         //biosA0[0x89] = psxBios_sys_a0_89;
2648         //biosA0[0x8a] = psxBios_sys_a0_8a;
2649         //biosA0[0x8b] = psxBios_sys_a0_8b;
2650         //biosA0[0x8c] = psxBios_sys_a0_8c;
2651         //biosA0[0x8d] = psxBios_sys_a0_8d;
2652         //biosA0[0x8e] = psxBios_sys_a0_8e;
2653         //biosA0[0x8f] = psxBios_sys_a0_8f;
2654         //biosA0[0x90] = psxBios_sys_a0_90;
2655         //biosA0[0x91] = psxBios_sys_a0_91;
2656         //biosA0[0x92] = psxBios_sys_a0_92;
2657         //biosA0[0x93] = psxBios_sys_a0_93;
2658         //biosA0[0x94] = psxBios_sys_a0_94;
2659         //biosA0[0x95] = psxBios_sys_a0_95;
2660         //biosA0[0x96] = psxBios_AddCDROMDevice;
2661         //biosA0[0x97] = psxBios_AddMemCardDevide;
2662         //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2663         //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2664         //biosA0[0x9a] = psxBios_sys_a0_9a;
2665         //biosA0[0x9b] = psxBios_sys_a0_9b;
2666         //biosA0[0x9c] = psxBios_SetConf;
2667         //biosA0[0x9d] = psxBios_GetConf;
2668         //biosA0[0x9e] = psxBios_sys_a0_9e;
2669         biosA0[0x9f] = psxBios_SetMem;
2670         //biosA0[0xa0] = psxBios__boot;
2671         //biosA0[0xa1] = psxBios_SystemError;
2672         //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2673         //biosA0[0xa3] = psxBios_DequeueCdIntr;
2674         //biosA0[0xa4] = psxBios_sys_a0_a4;
2675         //biosA0[0xa5] = psxBios_ReadSector;
2676         //biosA0[0xa6] = psxBios_get_cd_status;
2677         //biosA0[0xa7] = psxBios_bufs_cb_0;
2678         //biosA0[0xa8] = psxBios_bufs_cb_1;
2679         //biosA0[0xa9] = psxBios_bufs_cb_2;
2680         //biosA0[0xaa] = psxBios_bufs_cb_3;
2681         biosA0[0xab] = psxBios__card_info;
2682         biosA0[0xac] = psxBios__card_load;
2683         //biosA0[0axd] = psxBios__card_auto;
2684         //biosA0[0xae] = psxBios_bufs_cd_4;
2685         //biosA0[0xaf] = psxBios_sys_a0_af;
2686         //biosA0[0xb0] = psxBios_sys_a0_b0;
2687         //biosA0[0xb1] = psxBios_sys_a0_b1;
2688         //biosA0[0xb2] = psxBios_do_a_long_jmp
2689         //biosA0[0xb3] = psxBios_sys_a0_b3;
2690         //biosA0[0xb4] = psxBios_sub_function;
2691 //*******************B0 CALLS****************************
2692         //biosB0[0x00] = psxBios_SysMalloc;
2693         //biosB0[0x01] = psxBios_sys_b0_01;
2694         biosB0[0x02] = psxBios_SetRCnt;
2695         biosB0[0x03] = psxBios_GetRCnt;
2696         biosB0[0x04] = psxBios_StartRCnt;
2697         biosB0[0x05] = psxBios_StopRCnt;
2698         biosB0[0x06] = psxBios_ResetRCnt;
2699         biosB0[0x07] = psxBios_DeliverEvent;
2700         biosB0[0x08] = psxBios_OpenEvent;
2701         biosB0[0x09] = psxBios_CloseEvent;
2702         biosB0[0x0a] = psxBios_WaitEvent;
2703         biosB0[0x0b] = psxBios_TestEvent;
2704         biosB0[0x0c] = psxBios_EnableEvent;
2705         biosB0[0x0d] = psxBios_DisableEvent;
2706         biosB0[0x0e] = psxBios_OpenTh;
2707         biosB0[0x0f] = psxBios_CloseTh;
2708         biosB0[0x10] = psxBios_ChangeTh;
2709         //biosB0[0x11] = psxBios_psxBios_b0_11;
2710         biosB0[0x12] = psxBios_InitPAD;
2711         biosB0[0x13] = psxBios_StartPAD;
2712         biosB0[0x14] = psxBios_StopPAD;
2713         biosB0[0x15] = psxBios_PAD_init;
2714         biosB0[0x16] = psxBios_PAD_dr;
2715         biosB0[0x17] = psxBios_ReturnFromException;
2716         biosB0[0x18] = psxBios_ResetEntryInt;
2717         biosB0[0x19] = psxBios_HookEntryInt;
2718         //biosB0[0x1a] = psxBios_sys_b0_1a;
2719         //biosB0[0x1b] = psxBios_sys_b0_1b;
2720         //biosB0[0x1c] = psxBios_sys_b0_1c;
2721         //biosB0[0x1d] = psxBios_sys_b0_1d;
2722         //biosB0[0x1e] = psxBios_sys_b0_1e;
2723         //biosB0[0x1f] = psxBios_sys_b0_1f;
2724         biosB0[0x20] = psxBios_UnDeliverEvent;
2725         //biosB0[0x21] = psxBios_sys_b0_21;
2726         //biosB0[0x22] = psxBios_sys_b0_22;
2727         //biosB0[0x23] = psxBios_sys_b0_23;
2728         //biosB0[0x24] = psxBios_sys_b0_24;
2729         //biosB0[0x25] = psxBios_sys_b0_25;
2730         //biosB0[0x26] = psxBios_sys_b0_26;
2731         //biosB0[0x27] = psxBios_sys_b0_27;
2732         //biosB0[0x28] = psxBios_sys_b0_28;
2733         //biosB0[0x29] = psxBios_sys_b0_29;
2734         //biosB0[0x2a] = psxBios_sys_b0_2a;
2735         //biosB0[0x2b] = psxBios_sys_b0_2b;
2736         //biosB0[0x2c] = psxBios_sys_b0_2c;
2737         //biosB0[0x2d] = psxBios_sys_b0_2d;
2738         //biosB0[0x2e] = psxBios_sys_b0_2e;
2739         //biosB0[0x2f] = psxBios_sys_b0_2f;
2740         //biosB0[0x30] = psxBios_sys_b0_30;
2741         //biosB0[0x31] = psxBios_sys_b0_31;
2742         biosB0[0x32] = psxBios_open;
2743         biosB0[0x33] = psxBios_lseek;
2744         biosB0[0x34] = psxBios_read;
2745         biosB0[0x35] = psxBios_write;
2746         biosB0[0x36] = psxBios_close;
2747         //biosB0[0x37] = psxBios_ioctl;
2748         //biosB0[0x38] = psxBios_exit;
2749         //biosB0[0x39] = psxBios_sys_b0_39;
2750         //biosB0[0x3a] = psxBios_getc;
2751         //biosB0[0x3b] = psxBios_putc;
2752         biosB0[0x3c] = psxBios_getchar;
2753         //biosB0[0x3e] = psxBios_gets;
2754         //biosB0[0x40] = psxBios_cd;
2755         biosB0[0x41] = psxBios_format;
2756         biosB0[0x42] = psxBios_firstfile;
2757         biosB0[0x43] = psxBios_nextfile;
2758         biosB0[0x44] = psxBios_rename;
2759         biosB0[0x45] = psxBios_delete;
2760         //biosB0[0x46] = psxBios_undelete;
2761         //biosB0[0x47] = psxBios_AddDevice;
2762         //biosB0[0x48] = psxBios_RemoteDevice;
2763         //biosB0[0x49] = psxBios_PrintInstalledDevices;
2764         biosB0[0x4a] = psxBios_InitCARD;
2765         biosB0[0x4b] = psxBios_StartCARD;
2766         biosB0[0x4c] = psxBios_StopCARD;
2767         //biosB0[0x4d] = psxBios_sys_b0_4d;
2768         biosB0[0x4e] = psxBios__card_write;
2769         biosB0[0x4f] = psxBios__card_read;
2770         biosB0[0x50] = psxBios__new_card;
2771         biosB0[0x51] = psxBios_Krom2RawAdd;
2772         //biosB0[0x52] = psxBios_sys_b0_52;
2773         //biosB0[0x53] = psxBios_sys_b0_53;
2774         //biosB0[0x54] = psxBios__get_errno;
2775         //biosB0[0x55] = psxBios__get_error;
2776         biosB0[0x56] = psxBios_GetC0Table;
2777         biosB0[0x57] = psxBios_GetB0Table;
2778         biosB0[0x58] = psxBios__card_chan;
2779         //biosB0[0x59] = psxBios_sys_b0_59;
2780         //biosB0[0x5a] = psxBios_sys_b0_5a;
2781         biosB0[0x5b] = psxBios_ChangeClearPad;
2782         //biosB0[0x5c] = psxBios__card_status;
2783         //biosB0[0x5d] = psxBios__card_wait;
2784 //*******************C0 CALLS****************************
2785         //biosC0[0x00] = psxBios_InitRCnt;
2786         //biosC0[0x01] = psxBios_InitException;
2787         biosC0[0x02] = psxBios_SysEnqIntRP;
2788         biosC0[0x03] = psxBios_SysDeqIntRP;
2789         //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2790         //biosC0[0x05] = psxBios_get_free_TCB_slot;
2791         //biosC0[0x06] = psxBios_ExceptionHandler;
2792         //biosC0[0x07] = psxBios_InstallExeptionHandler;
2793         //biosC0[0x08] = psxBios_SysInitMemory;
2794         //biosC0[0x09] = psxBios_SysInitKMem;
2795         biosC0[0x0a] = psxBios_ChangeClearRCnt;
2796         //biosC0[0x0b] = psxBios_SystemError;
2797         //biosC0[0x0c] = psxBios_InitDefInt;
2798         //biosC0[0x0d] = psxBios_sys_c0_0d;
2799         //biosC0[0x0e] = psxBios_sys_c0_0e;
2800         //biosC0[0x0f] = psxBios_sys_c0_0f;
2801         //biosC0[0x10] = psxBios_sys_c0_10;
2802         //biosC0[0x11] = psxBios_sys_c0_11;
2803         //biosC0[0x12] = psxBios_InstallDevices;
2804         //biosC0[0x13] = psxBios_FlushStfInOutPut;
2805         //biosC0[0x14] = psxBios_sys_c0_14;
2806         //biosC0[0x15] = psxBios__cdevinput;
2807         //biosC0[0x16] = psxBios__cdevscan;
2808         //biosC0[0x17] = psxBios__circgetc;
2809         //biosC0[0x18] = psxBios__circputc;
2810         //biosC0[0x19] = psxBios_ioabort;
2811         //biosC0[0x1a] = psxBios_sys_c0_1a
2812         //biosC0[0x1b] = psxBios_KernelRedirect;
2813         //biosC0[0x1c] = psxBios_PatchAOTable;
2814 //************** THE END ***************************************
2815 /**/
2816         base = 0x1000;
2817         size = sizeof(EvCB) * 32;
2818         Event = (void *)&psxR[base]; base += size * 6;
2819         memset(Event, 0, size * 6);
2820         HwEV = Event;
2821         EvEV = Event + 32;
2822         RcEV = Event + 32 * 2;
2823         UeEV = Event + 32 * 3;
2824         SwEV = Event + 32 * 4;
2825         ThEV = Event + 32 * 5;
2826
2827         ptr = (u32 *)&psxM[0x0874]; // b0 table
2828         ptr[0] = SWAPu32(0x4c54 - 0x884);
2829
2830         ptr = (u32 *)&psxM[0x0674]; // c0 table
2831         ptr[6] = SWAPu32(0xc80);
2832
2833         memset(SysIntRP, 0, sizeof(SysIntRP));
2834         memset(Thread, 0, sizeof(Thread));
2835         Thread[0].status = 2; // main thread
2836
2837         jmp_int = NULL;
2838         pad_buf = NULL;
2839         pad_buf1 = NULL;
2840         pad_buf2 = NULL;
2841         pad_buf1len = pad_buf2len = 0;
2842         heap_addr = NULL;
2843         heap_end = NULL;
2844         CardState = -1;
2845         CurThread = 0;
2846         memset(FDesc, 0, sizeof(FDesc));
2847
2848         psxMu32ref(0x0150) = SWAPu32(0x160);
2849         psxMu32ref(0x0154) = SWAPu32(0x320);
2850         psxMu32ref(0x0160) = SWAPu32(0x248);
2851         strcpy((char *)&psxM[0x248], "bu");
2852 /*      psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
2853         psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
2854         psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
2855         psxMu32ref(0x09e0) = SWAPu32(0x43d0);
2856         psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
2857 */
2858         // opcode HLE
2859         psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
2860         psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
2861         psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
2862         psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
2863         psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
2864         psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
2865         psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
2866         psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
2867         psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
2868         psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
2869
2870         // initial stack pointer for BIOS interrupt
2871         psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
2872
2873         // initial RNG seed
2874         psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
2875
2876         // fonts
2877         len = 0x80000 - 0x66000;
2878         uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
2879         len = 0x80000 - 0x69d68;
2880         uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
2881
2882         // memory size 2 MB
2883         psxHu32ref(0x1060) = SWAPu32(0x00000b88);
2884
2885         hleSoftCall = FALSE;
2886 }
2887
2888 void psxBiosShutdown() {
2889 }
2890
2891 #define psxBios_PADpoll(pad) { \
2892         PAD##pad##_startPoll(pad); \
2893         pad_buf##pad[0] = 0; \
2894         pad_buf##pad[1] = PAD##pad##_poll(0x42); \
2895         if (!(pad_buf##pad[1] & 0x0f)) { \
2896                 bufcount = 32; \
2897         } else { \
2898                 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
2899         } \
2900         PAD##pad##_poll(0); \
2901         i = 2; \
2902         while (bufcount--) { \
2903                 pad_buf##pad[i++] = PAD##pad##_poll(0); \
2904         } \
2905 }
2906
2907 void biosInterrupt() {
2908         int i, bufcount;
2909
2910 //      if (psxHu32(0x1070) & 0x1) { // Vsync
2911                 if (pad_buf != NULL) {
2912                         u32 *buf = (u32*)pad_buf;
2913
2914                         if (!Config.UseNet) {
2915                                 PAD1_startPoll(1);
2916                                 if (PAD1_poll(0x42) == 0x23) {
2917                                         PAD1_poll(0);
2918                                         *buf = PAD1_poll(0) << 8;
2919                                         *buf |= PAD1_poll(0);
2920                                         PAD1_poll(0);
2921                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
2922                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
2923                                 } else {
2924                                         PAD1_poll(0);
2925                                         *buf = PAD1_poll(0) << 8;
2926                                         *buf|= PAD1_poll(0);
2927                                 }
2928
2929                                 PAD2_startPoll(2);
2930                                 if (PAD2_poll(0x42) == 0x23) {
2931                                         PAD2_poll(0);
2932                                         *buf |= PAD2_poll(0) << 24;
2933                                         *buf |= PAD2_poll(0) << 16;
2934                                         PAD2_poll(0);
2935                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
2936                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
2937                                 } else {
2938                                         PAD2_poll(0);
2939                                         *buf |= PAD2_poll(0) << 24;
2940                                         *buf |= PAD2_poll(0) << 16;
2941                                 }
2942                         } else {
2943                                 u16 data;
2944
2945                                 PAD1_startPoll(1);
2946                                 PAD1_poll(0x42);
2947                                 PAD1_poll(0);
2948                                 data = PAD1_poll(0) << 8;
2949                                 data |= PAD1_poll(0);
2950
2951                                 if (NET_sendPadData(&data, 2) == -1)
2952                                         netError();
2953
2954                                 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
2955                                         netError();
2956                                 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
2957                                         netError();
2958                         }
2959                 }
2960                 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
2961                         psxBios_PADpoll(1);
2962
2963                         if (NET_sendPadData(pad_buf1, i) == -1)
2964                                 netError();
2965
2966                         if (NET_recvPadData(pad_buf1, 1) == -1)
2967                                 netError();
2968                         if (NET_recvPadData(pad_buf2, 2) == -1)
2969                                 netError();
2970                 } else {
2971                         if (pad_buf1) {
2972                                 psxBios_PADpoll(1);
2973                         }
2974
2975                         if (pad_buf2) {
2976                                 psxBios_PADpoll(2);
2977                         }
2978                 }
2979
2980         if (psxHu32(0x1070) & 0x1) { // Vsync
2981                 if (RcEV[3][1].status == EvStACTIVE) {
2982                         softCall(RcEV[3][1].fhandler);
2983 //                      hwWrite32(0x1f801070, ~(1));
2984                 }
2985         }
2986
2987         if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
2988                 int i;
2989
2990                 for (i = 0; i < 3; i++) {
2991                         if (psxHu32(0x1070) & (1 << (i + 4))) {
2992                                 if (RcEV[i][1].status == EvStACTIVE) {
2993                                         softCall(RcEV[i][1].fhandler);
2994                                 }
2995                                 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
2996                         }
2997                 }
2998         }
2999 }
3000
3001 void psxBiosException() {
3002         int i;
3003
3004         switch (psxRegs.CP0.n.Cause & 0x3c) {
3005                 case 0x00: // Interrupt
3006 #ifdef PSXCPU_LOG
3007 //                      PSXCPU_LOG("interrupt\n");
3008 #endif
3009                         SaveRegs();
3010
3011                         sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3012
3013                         biosInterrupt();
3014
3015                         for (i = 0; i < 8; i++) {
3016                                 if (SysIntRP[i]) {
3017                                         u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3018
3019                                         s0 = queue[2];
3020                                         softCall(queue[1]);
3021                                 }
3022                         }
3023
3024                         if (jmp_int != NULL) {
3025                                 int i;
3026
3027                                 psxHwWrite32(0x1f801070, 0xffffffff);
3028
3029                                 ra = jmp_int[0];
3030                                 sp = jmp_int[1];
3031                                 fp = jmp_int[2];
3032                                 for (i = 0; i < 8; i++) // s0-s7
3033                                          psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3034                                 gp = jmp_int[11];
3035
3036                                 v0 = 1;
3037                                 pc0 = ra;
3038                                 return;
3039                         }
3040                         psxHwWrite16(0x1f801070, 0);
3041                         break;
3042
3043                 case 0x20: // Syscall
3044 #ifdef PSXCPU_LOG
3045                         PSXCPU_LOG("syscall exp %x\n", a0);
3046 #endif
3047                         switch (a0) {
3048                                 case 1: // EnterCritical - disable irq's
3049                                         /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3050                                         v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3051                                         psxRegs.CP0.n.Status &= ~0x404;
3052                                         break;
3053
3054                                 case 2: // ExitCritical - enable irq's
3055                                         psxRegs.CP0.n.Status |= 0x404;
3056                                         break;
3057                         }
3058                         pc0 = psxRegs.CP0.n.EPC + 4;
3059
3060                         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3061                                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3062                         return;
3063
3064                 default:
3065 #ifdef PSXCPU_LOG
3066                         PSXCPU_LOG("unknown bios exception!\n");
3067 #endif
3068                         break;
3069         }
3070
3071         pc0 = psxRegs.CP0.n.EPC;
3072         if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3073
3074         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3075                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3076 }
3077
3078 #define bfreeze(ptr, size) { \
3079         if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3080         if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3081         base += size; \
3082 }
3083
3084 #define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3085 #define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3086
3087 #define bfreezepsxMptr(ptr, type) { \
3088         if (Mode == 1) { \
3089                 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3090                 else psxRu32ref(base) = 0; \
3091         } else { \
3092                 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3093                 else (ptr) = NULL; \
3094         } \
3095         base += sizeof(u32); \
3096 }
3097
3098 void psxBiosFreeze(int Mode) {
3099         u32 base = 0x40000;
3100
3101         bfreezepsxMptr(jmp_int, u32);
3102         bfreezepsxMptr(pad_buf, int);
3103         bfreezepsxMptr(pad_buf1, char);
3104         bfreezepsxMptr(pad_buf2, char);
3105         bfreezepsxMptr(heap_addr, u32);
3106         bfreezel(&pad_buf1len);
3107         bfreezel(&pad_buf2len);
3108         bfreezes(regs);
3109         bfreezes(SysIntRP);
3110         bfreezel(&CardState);
3111         bfreezes(Thread);
3112         bfreezel(&CurThread);
3113         bfreezes(FDesc);
3114         bfreezel(&card_active_chan);
3115 }