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         v0 = a0;
 743         if (a0 == 0 || a2 > 0x7FFFFFFF)
 744         {
 745                 pc0 = ra;
 746                 return;
 747         }
 748         while ((s32)a2-- > 0) *p1++ = *p2++;
 749         a2 = 0;
 750         pc0 = ra;
 751 }
 752
 753 void psxBios_bzero() { // 0x28
 754         char *p = (char *)Ra0;
 755         while ((s32)a1-- > 0) *p++ = '\0';
 756         pc0 = ra;
 757 }
 758
 759 void psxBios_bcmp() { // 0x29
 760         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 761
 762         if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
 763
 764         while ((s32)a2-- > 0) {
 765                 if (*p1++ != *p2++) {
 766                         v0 = *p1 - *p2; // BUG: compare the NEXT byte
 767                         pc0 = ra;
 768                         return;
 769                 }
 770         }
 771
 772         v0 = 0; pc0 = ra;
 773 }
 774
 775 void psxBios_memcpy() { // 0x2a
 776         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 777         while ((s32)a2-- > 0) *p1++ = *p2++;
 778
 779         v0 = a0; pc0 = ra;
 780 }
 781
 782 void psxBios_memset() { // 0x2b
 783         char *p = (char *)Ra0;
 784         while ((s32)a2-- > 0) *p++ = (char)a1;
 785
 786         a2 = 0;
 787         v0 = a0; pc0 = ra;
 788 }
 789
 790 void psxBios_memmove() { // 0x2c
 791         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 792
 793         if (p2 <= p1 && p2 + a2 > p1) {
 794                 a2++; // BUG: copy one more byte here
 795                 p1 += a2;
 796                 p2 += a2;
 797                 while ((s32)a2-- > 0) *--p1 = *--p2;
 798         } else {
 799                 while ((s32)a2-- > 0) *p1++ = *p2++;
 800         }
 801
 802         v0 = a0; pc0 = ra;
 803 }
 804
 805 void psxBios_memcmp() { // 0x2d
 806         psxBios_bcmp();
 807 }
 808
 809 void psxBios_memchr() { // 0x2e
 810         char *p = (char *)Ra0;
 811
 812         while ((s32)a2-- > 0) {
 813                 if (*p++ != (s8)a1) continue;
 814                 v0 = a0 + (p - (char *)Ra0 - 1);
 815                 pc0 = ra;
 816                 return;
 817         }
 818
 819         v0 = 0; pc0 = ra;
 820 }
 821
 822 void psxBios_rand() { // 0x2f
 823         u32 s = psxMu32(0x9010) * 1103515245 + 12345;
 824         v0 = (s >> 16) & 0x7fff;
 825         psxMu32ref(0x9010) = SWAPu32(s);
 826         pc0 = ra;
 827 }
 828
 829 void psxBios_srand() { // 0x30
 830         psxMu32ref(0x9010) = SWAPu32(a0);
 831         pc0 = ra;
 832 }
 833
 834 static u32 qscmpfunc, qswidth;
 835
 836 static inline int qscmp(char *a, char *b) {
 837         u32 sa0 = a0;
 838
 839         a0 = sa0 + (a - (char *)PSXM(sa0));
 840         a1 = sa0 + (b - (char *)PSXM(sa0));
 841
 842         softCall2(qscmpfunc);
 843
 844         a0 = sa0;
 845         return (s32)v0;
 846 }
 847
 848 static inline void qexchange(char *i, char *j) {
 849         char t;
 850         int n = qswidth;
 851
 852         do {
 853                 t = *i;
 854                 *i++ = *j;
 855                 *j++ = t;
 856         } while (--n);
 857 }
 858
 859 static inline void q3exchange(char *i, char *j, char *k) {
 860         char t;
 861         int n = qswidth;
 862
 863         do {
 864                 t = *i;
 865                 *i++ = *k;
 866                 *k++ = *j;
 867                 *j++ = t;
 868         } while (--n);
 869 }
 870
 871 static void qsort_main(char *a, char *l) {
 872         char *i, *j, *lp, *hp;
 873         int c;
 874         unsigned int n;
 875
 876 start:
 877         if ((n = l - a) <= qswidth)
 878                 return;
 879         n = qswidth * (n / (2 * qswidth));
 880         hp = lp = a + n;
 881         i = a;
 882         j = l - qswidth;
 883         while (TRUE) {
 884                 if (i < lp) {
 885                         if ((c = qscmp(i, lp)) == 0) {
 886                                 qexchange(i, lp -= qswidth);
 887                                 continue;
 888                         }
 889                         if (c < 0) {
 890                                 i += qswidth;
 891                                 continue;
 892                         }
 893                 }
 894
 895 loop:
 896                 if (j > hp) {
 897                         if ((c = qscmp(hp, j)) == 0) {
 898                                 qexchange(hp += qswidth, j);
 899                                 goto loop;
 900                         }
 901                         if (c > 0) {
 902                                 if (i == lp) {
 903                                         q3exchange(i, hp += qswidth, j);
 904                                         i = lp += qswidth;
 905                                         goto loop;
 906                                 }
 907                                 qexchange(i, j);
 908                                 j -= qswidth;
 909                                 i += qswidth;
 910                                 continue;
 911                         }
 912                         j -= qswidth;
 913                         goto loop;
 914                 }
 915
 916                 if (i == lp) {
 917                         if (lp - a >= l - hp) {
 918                                 qsort_main(hp + qswidth, l);
 919                                 l = lp;
 920                         } else {
 921                                 qsort_main(a, lp);
 922                                 a = hp + qswidth;
 923                         }
 924                         goto start;
 925                 }
 926
 927                 q3exchange(j, lp -= qswidth, i);
 928                 j = hp -= qswidth;
 929         }
 930 }
 931
 932 void psxBios_qsort() { // 0x31
 933         qswidth = a2;
 934         qscmpfunc = a3;
 935         qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
 936
 937         pc0 = ra;
 938 }
 939
 940 void psxBios_malloc() { // 0x33
 941         unsigned int *chunk, *newchunk = NULL;
 942         unsigned int dsize = 0, csize, cstat;
 943         int colflag;
 944 #ifdef PSXBIOS_LOG
 945         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
 946 #endif
 947
 948         // scan through heap and combine free chunks of space
 949         chunk = heap_addr;
 950         colflag = 0;
 951         while(chunk < heap_end) {
 952                 // get size and status of actual chunk
 953                 csize = ((u32)*chunk) & 0xfffffffc;
 954                 cstat = ((u32)*chunk) & 1;
 955
 956                 // it's a free chunk
 957                 if(cstat == 1) {
 958                         if(colflag == 0) {
 959                                 newchunk = chunk;
 960                                 dsize = csize;
 961                                 colflag = 1;                    // let's begin a new collection of free memory
 962                         }
 963                         else dsize += (csize+4);        // add the new size including header
 964                 }
 965                 // not a free chunk: did we start a collection ?
 966                 else {
 967                         if(colflag == 1) {                      // collection is over
 968                                 colflag = 0;
 969                                 *newchunk = SWAP32(dsize | 1);
 970                         }
 971                 }
 972
 973                 // next chunk
 974                 chunk = (u32*)((uptr)chunk + csize + 4);
 975         }
 976         // if neccessary free memory on end of heap
 977         if (colflag == 1)
 978                 *newchunk = SWAP32(dsize | 1);
 979
 980         chunk = heap_addr;
 981         csize = ((u32)*chunk) & 0xfffffffc;
 982         cstat = ((u32)*chunk) & 1;
 983         dsize = (a0 + 3) & 0xfffffffc;
 984
 985         // exit on uninitialized heap
 986         if (chunk == NULL) {
 987                 SysPrintf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
 988                 v0 = 0;
 989                 pc0 = ra;
 990                 return;
 991         }
 992
 993         // search an unused chunk that is big enough until the end of the heap
 994         while ((dsize > csize || cstat == 0) && chunk < heap_end ) {
 995                 chunk = (u32*)((uptr)chunk + csize + 4);
 996                 csize = ((u32)*chunk) & 0xfffffffc;
 997                 cstat = ((u32)*chunk) & 1;
 998         }
 999
1000         // catch out of memory
1001         if(chunk >= heap_end) { SysPrintf("malloc %x,%x: Out of memory error!\n", v0, a0); v0 = 0; pc0 = ra; return; }
1002
1003         // allocate memory
1004         if(dsize == csize) {
1005                 // chunk has same size
1006                 *chunk &= 0xfffffffc;
1007         }
1008         else {
1009                 // split free chunk
1010                 *chunk = SWAP32(dsize);
1011                 newchunk = (u32*)((uptr)chunk + dsize + 4);
1012                 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
1013         }
1014
1015         // return pointer to allocated memory
1016         v0 = ((unsigned long)chunk - (unsigned long)psxM) + 4;
1017         v0|= 0x80000000;
1018         SysPrintf ("malloc %x,%x\n", v0, a0);
1019         pc0 = ra;
1020 }
1021
1022 void psxBios_free() { // 0x34
1023
1024 #ifdef PSXBIOS_LOG
1025         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1026 #endif
1027
1028         SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1029
1030         *(u32*)(Ra0-4) |= 1;    // set chunk to free
1031         pc0 = ra;
1032 }
1033
1034 void psxBios_calloc() { // 0x37
1035         void *pv0;
1036 #ifdef PSXBIOS_LOG
1037         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1038 #endif
1039
1040         a0 = a0 * a1;
1041         psxBios_malloc();
1042         pv0 = Rv0;
1043         if (pv0)
1044                 memset(pv0, 0, a0);
1045 }
1046
1047 void psxBios_realloc() { // 0x38
1048         u32 block = a0;
1049         u32 size = a1;
1050 #ifdef PSXBIOS_LOG
1051         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1052 #endif
1053
1054         a0 = block;
1055         /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1056         if (block == 0)
1057         {
1058                 psxBios_malloc();
1059         }
1060         /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1061         else if (size == 0)
1062         {
1063                 psxBios_free();
1064         }
1065         /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1066         /* Note that it is not quite implemented this way here. */
1067         else
1068         {
1069                 psxBios_free();
1070                 a0 = size;
1071                 psxBios_malloc();
1072         }
1073 }
1074
1075
1076 /* InitHeap(void *block , int n) */
1077 void psxBios_InitHeap() { // 0x39
1078         unsigned int size;
1079
1080 #ifdef PSXBIOS_LOG
1081         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1082 #endif
1083
1084         if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1085         else size = a1;
1086
1087         size &= 0xfffffffc;
1088
1089         heap_addr = (u32 *)Ra0;
1090         heap_end = (u32 *)((u8 *)heap_addr + size);
1091         *heap_addr = SWAP32(size | 1);
1092
1093         SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
1094
1095         pc0 = ra;
1096 }
1097
1098 void psxBios_getchar() { //0x3b
1099         v0 = getchar(); pc0 = ra;
1100 }
1101
1102 void psxBios_printf() { // 0x3f
1103         char tmp[1024];
1104         char tmp2[1024];
1105         u32 save[4];
1106         char *ptmp = tmp;
1107         int n=1, i=0, j;
1108         void *psp;
1109
1110         psp = PSXM(sp);
1111         if (psp) {
1112                 memcpy(save, psp, 4 * 4);
1113                 psxMu32ref(sp) = SWAP32((u32)a0);
1114                 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1115                 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1116                 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1117         }
1118
1119         while (Ra0[i]) {
1120                 switch (Ra0[i]) {
1121                         case '%':
1122                                 j = 0;
1123                                 tmp2[j++] = '%';
1124 _start:
1125                                 switch (Ra0[++i]) {
1126                                         case '.':
1127                                         case 'l':
1128                                                 tmp2[j++] = Ra0[i]; goto _start;
1129                                         default:
1130                                                 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1131                                                         tmp2[j++] = Ra0[i];
1132                                                         goto _start;
1133                                                 }
1134                                                 break;
1135                                 }
1136                                 tmp2[j++] = Ra0[i];
1137                                 tmp2[j] = 0;
1138
1139                                 switch (Ra0[i]) {
1140                                         case 'f': case 'F':
1141                                                 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1142                                         case 'a': case 'A':
1143                                         case 'e': case 'E':
1144                                         case 'g': case 'G':
1145                                                 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1146                                         case 'p':
1147                                         case 'i': case 'u':
1148                                         case 'd': case 'D':
1149                                         case 'o': case 'O':
1150                                         case 'x': case 'X':
1151                                                 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1152                                         case 'c':
1153                                                 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1154                                         case 's':
1155                                                 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1156                                         case '%':
1157                                                 *ptmp++ = Ra0[i]; break;
1158                                 }
1159                                 i++;
1160                                 break;
1161                         default:
1162                                 *ptmp++ = Ra0[i++];
1163                 }
1164         }
1165         *ptmp = 0;
1166
1167         if (psp)
1168                 memcpy(psp, save, 4 * 4);
1169
1170         SysPrintf("%s", tmp);
1171
1172         pc0 = ra;
1173 }
1174
1175 void psxBios_format() { // 0x41
1176         if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1177         {
1178                 CreateMcd(Config.Mcd1);
1179                 LoadMcd(1, Config.Mcd1);
1180                 v0 = 1;
1181         }
1182         else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1183         {
1184                 CreateMcd(Config.Mcd2);
1185                 LoadMcd(2, Config.Mcd2);
1186                 v0 = 1;
1187         }
1188         else
1189         {
1190                 v0 = 0;
1191         }
1192         pc0 = ra;
1193 }
1194
1195 /*
1196  *      long Load(char *name, struct EXEC *header);
1197  */
1198
1199 void psxBios_Load() { // 0x42
1200         EXE_HEADER eheader;
1201         void *pa1;
1202
1203 #ifdef PSXBIOS_LOG
1204         PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1205 #endif
1206
1207         pa1 = Ra1;
1208         if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1209                 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
1210                 v0 = 1;
1211         } else v0 = 0;
1212
1213         pc0 = ra;
1214 }
1215
1216 /*
1217  *      int Exec(struct EXEC *header , int argc , char **argv);
1218  */
1219
1220 void psxBios_Exec() { // 43
1221         EXEC *header = (EXEC*)Ra0;
1222         u32 tmp;
1223
1224 #ifdef PSXBIOS_LOG
1225         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1226 #endif
1227
1228         header->_sp = sp;
1229         header->_fp = fp;
1230         header->_sp = sp;
1231         header->_gp = gp;
1232         header->ret = ra;
1233         header->base = s0;
1234
1235         if (header->S_addr != 0) {
1236                 tmp = header->S_addr + header->s_size;
1237                 sp = tmp;
1238                 fp = sp;
1239         }
1240
1241         gp = header->gp0;
1242
1243         s0 = a0;
1244
1245         a0 = a1;
1246         a1 = a2;
1247
1248         ra = 0x8000;
1249         pc0 = header->_pc0;
1250 }
1251
1252 void psxBios_FlushCache() { // 44
1253 #ifdef PSXBIOS_LOG
1254         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1255 #endif
1256
1257         pc0 = ra;
1258 }
1259
1260 void psxBios_GPU_dw() { // 0x46
1261         int size;
1262         s32 *ptr;
1263
1264 #ifdef PSXBIOS_LOG
1265         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1266 #endif
1267
1268         GPU_writeData(0xa0000000);
1269         GPU_writeData((a1<<16)|(a0&0xffff));
1270         GPU_writeData((a3<<16)|(a2&0xffff));
1271         size = (a2*a3+1)/2;
1272         ptr = (s32*)PSXM(Rsp[4]);  //that is correct?
1273         do {
1274                 GPU_writeData(SWAP32(*ptr));
1275                 ptr++;
1276         } while(--size);
1277
1278         pc0 = ra;
1279 }
1280
1281 void psxBios_mem2vram() { // 0x47
1282         int size;
1283
1284         GPU_writeData(0xa0000000);
1285         GPU_writeData((a1<<16)|(a0&0xffff));
1286         GPU_writeData((a3<<16)|(a2&0xffff));
1287         size = (a2*a3+1)/2;
1288         GPU_writeStatus(0x04000002);
1289         psxHwWrite32(0x1f8010f4,0);
1290         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1291         psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1292         psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1293         psxHwWrite32(0x1f8010a8,0x01000201);
1294
1295         pc0 = ra;
1296 }
1297
1298 void psxBios_SendGPU() { // 0x48
1299         GPU_writeStatus(a0);
1300         gpuSyncPluginSR();
1301         pc0 = ra;
1302 }
1303
1304 void psxBios_GPU_cw() { // 0x49
1305         GPU_writeData(a0);
1306         pc0 = ra;
1307 }
1308
1309 void psxBios_GPU_cwb() { // 0x4a
1310         s32 *ptr = (s32*)Ra0;
1311         int size = a1;
1312         while(size--) {
1313                 GPU_writeData(SWAP32(*ptr));
1314                 ptr++;
1315         }
1316
1317         pc0 = ra;
1318 }
1319
1320 void psxBios_GPU_SendPackets() { //4b:
1321         GPU_writeStatus(0x04000002);
1322         psxHwWrite32(0x1f8010f4,0);
1323         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1324         psxHwWrite32(0x1f8010a0,a0);
1325         psxHwWrite32(0x1f8010a4,0);
1326         psxHwWrite32(0x1f8010a8,0x010000401);
1327         pc0 = ra;
1328 }
1329
1330 void psxBios_sys_a0_4c() { // 0x4c GPU relate
1331         psxHwWrite32(0x1f8010a8,0x00000401);
1332         GPU_writeData(0x0400000);
1333         GPU_writeData(0x0200000);
1334         GPU_writeData(0x0100000);
1335         v0 = 0x1f801814;
1336         pc0 = ra;
1337 }
1338
1339 void psxBios_GPU_GetGPUStatus() { // 0x4d
1340         v0 = GPU_readStatus();
1341         pc0 = ra;
1342 }
1343
1344 #undef s_addr
1345
1346 void psxBios_LoadExec() { // 51
1347         EXEC *header = (EXEC*)PSXM(0xf000);
1348         u32 s_addr, s_size;
1349
1350 #ifdef PSXBIOS_LOG
1351         PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1352 #endif
1353         s_addr = a1; s_size = a2;
1354
1355         a1 = 0xf000;
1356         psxBios_Load();
1357
1358         header->S_addr = s_addr;
1359         header->s_size = s_size;
1360
1361         a0 = 0xf000; a1 = 0; a2 = 0;
1362         psxBios_Exec();
1363 }
1364
1365 void psxBios__bu_init() { // 70
1366 #ifdef PSXBIOS_LOG
1367         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1368 #endif
1369
1370         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1371         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1372
1373         pc0 = ra;
1374 }
1375
1376 void psxBios__96_init() { // 71
1377 #ifdef PSXBIOS_LOG
1378         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1379 #endif
1380
1381         pc0 = ra;
1382 }
1383
1384 void psxBios__96_remove() { // 72
1385 #ifdef PSXBIOS_LOG
1386         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1387 #endif
1388
1389         pc0 = ra;
1390 }
1391
1392 void psxBios_SetMem() { // 9f
1393         u32 new = psxHu32(0x1060);
1394
1395 #ifdef PSXBIOS_LOG
1396         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1397 #endif
1398
1399         switch(a0) {
1400                 case 2:
1401                         psxHu32ref(0x1060) = SWAP32(new);
1402                         psxMu32ref(0x060) = a0;
1403                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1404                         break;
1405
1406                 case 8:
1407                         psxHu32ref(0x1060) = SWAP32(new | 0x300);
1408                         psxMu32ref(0x060) = a0;
1409                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1410
1411                 default:
1412                         SysPrintf("Effective memory must be 2/8 MBytes\n");
1413                 break;
1414         }
1415
1416         pc0 = ra;
1417 }
1418
1419 void psxBios__card_info() { // ab
1420 #ifdef PSXBIOS_LOG
1421         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1422 #endif
1423         u32 ret;
1424         card_active_chan = a0;
1425
1426         switch (card_active_chan)
1427         {
1428         case 0x00: case 0x01: case 0x02: case 0x03:
1429                 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1430                 break;
1431         case 0x10: case 0x11: case 0x12: case 0x13:
1432                 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1433                 break;
1434         default:
1435 #ifdef PSXBIOS_LOG
1436                 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1437 #endif
1438                 ret = 0x11;
1439                 break;
1440         }
1441
1442 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1443 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1444         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1445         DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
1446
1447         v0 = 1; pc0 = ra;
1448 }
1449
1450 void psxBios__card_load() { // ac
1451 #ifdef PSXBIOS_LOG
1452         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1453 #endif
1454
1455         card_active_chan = a0;
1456
1457 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1458         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1459
1460         v0 = 1; pc0 = ra;
1461 }
1462
1463 /* System calls B0 */
1464
1465 void psxBios_SetRCnt() { // 02
1466 #ifdef PSXBIOS_LOG
1467         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1468 #endif
1469
1470         a0&= 0x3;
1471         if (a0 != 3) {
1472                 u32 mode=0;
1473
1474                 psxRcntWtarget(a0, a1);
1475                 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1476                 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1477                 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1478                 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1479                 else         { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1480
1481                 psxRcntWmode(a0, mode);
1482         }
1483         pc0 = ra;
1484 }
1485
1486 void psxBios_GetRCnt() { // 03
1487 #ifdef PSXBIOS_LOG
1488         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1489 #endif
1490
1491         a0&= 0x3;
1492         if (a0 != 3) v0 = psxRcntRcount(a0);
1493         else v0 = 0;
1494         pc0 = ra;
1495 }
1496
1497 void psxBios_StartRCnt() { // 04
1498 #ifdef PSXBIOS_LOG
1499         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1500 #endif
1501
1502         a0&= 0x3;
1503         if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1504         else psxHu32ref(0x1074)|= SWAPu32(0x1);
1505         v0 = 1; pc0 = ra;
1506 }
1507
1508 void psxBios_StopRCnt() { // 05
1509 #ifdef PSXBIOS_LOG
1510         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1511 #endif
1512
1513         a0&= 0x3;
1514         if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1515         else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1516         pc0 = ra;
1517 }
1518
1519 void psxBios_ResetRCnt() { // 06
1520 #ifdef PSXBIOS_LOG
1521         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1522 #endif
1523
1524         a0&= 0x3;
1525         if (a0 != 3) {
1526                 psxRcntWmode(a0, 0);
1527                 psxRcntWtarget(a0, 0);
1528                 psxRcntWcount(a0, 0);
1529         }
1530         pc0 = ra;
1531 }
1532
1533
1534 /* gets ev for use with Event */
1535 #define GetEv() \
1536         ev = (a0 >> 24) & 0xf; \
1537         if (ev == 0xf) ev = 0x5; \
1538         ev*= 32; \
1539         ev+= a0&0x1f;
1540
1541 /* gets spec for use with Event */
1542 #define GetSpec() \
1543         spec = 0; \
1544         switch (a1) { \
1545                 case 0x0301: spec = 16; break; \
1546                 case 0x0302: spec = 17; break; \
1547                 default: \
1548                         for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1549                         break; \
1550         }
1551
1552 void psxBios_DeliverEvent() { // 07
1553         int ev, spec;
1554         int i;
1555
1556         GetEv();
1557         GetSpec();
1558
1559 #ifdef PSXBIOS_LOG
1560         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1561 #endif
1562
1563         DeliverEvent(ev, spec);
1564
1565         pc0 = ra;
1566 }
1567
1568 void psxBios_OpenEvent() { // 08
1569         int ev, spec;
1570         int i;
1571
1572         GetEv();
1573         GetSpec();
1574
1575 #ifdef PSXBIOS_LOG
1576         PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1577 #endif
1578
1579         Event[ev][spec].status = EvStWAIT;
1580         Event[ev][spec].mode = a2;
1581         Event[ev][spec].fhandler = a3;
1582
1583         v0 = ev | (spec << 8);
1584         pc0 = ra;
1585 }
1586
1587 void psxBios_CloseEvent() { // 09
1588         int ev, spec;
1589
1590         ev   = a0 & 0xff;
1591         spec = (a0 >> 8) & 0xff;
1592
1593 #ifdef PSXBIOS_LOG
1594         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1595 #endif
1596
1597         Event[ev][spec].status = EvStUNUSED;
1598
1599         v0 = 1; pc0 = ra;
1600 }
1601
1602 void psxBios_WaitEvent() { // 0a
1603         int ev, spec;
1604
1605         ev   = a0 & 0xff;
1606         spec = (a0 >> 8) & 0xff;
1607 #ifdef PSXBIOS_LOG
1608         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1609 #endif
1610         if (Event[ev][spec].status == EvStUNUSED)
1611         {
1612                 v0 = 0;
1613                 pc0 = ra;
1614                 return;
1615         }
1616
1617         if (Event[ev][spec].status == EvStALREADY)
1618         {
1619                 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1620                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1621                 v0 = 1;
1622                 pc0 = ra;
1623                 return;
1624         }
1625
1626         v0 = 0;
1627         pc0 = ra;
1628 }
1629
1630 void psxBios_TestEvent() { // 0b
1631         int ev, spec;
1632
1633         ev   = a0 & 0xff;
1634         spec = (a0 >> 8) & 0xff;
1635
1636         if (Event[ev][spec].status == EvStALREADY) {
1637                 Event[ev][spec].status = EvStACTIVE; v0 = 1;
1638         } else v0 = 0;
1639
1640 #ifdef PSXBIOS_LOG
1641         PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1642 #endif
1643
1644         pc0 = ra;
1645 }
1646
1647 void psxBios_EnableEvent() { // 0c
1648         int ev, spec;
1649
1650         ev   = a0 & 0xff;
1651         spec = (a0 >> 8) & 0xff;
1652
1653 #ifdef PSXBIOS_LOG
1654         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1655 #endif
1656
1657         Event[ev][spec].status = EvStACTIVE;
1658
1659         v0 = 1; pc0 = ra;
1660 }
1661
1662 void psxBios_DisableEvent() { // 0d
1663         int ev, spec;
1664
1665         ev   = a0 & 0xff;
1666         spec = (a0 >> 8) & 0xff;
1667
1668 #ifdef PSXBIOS_LOG
1669         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1670 #endif
1671
1672         Event[ev][spec].status = EvStWAIT;
1673
1674         v0 = 1; pc0 = ra;
1675 }
1676
1677 /*
1678  *      long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1679  */
1680
1681 void psxBios_OpenTh() { // 0e
1682         int th;
1683
1684         for (th=1; th<8; th++)
1685         {
1686                 if (Thread[th].status == 0) break;
1687
1688         }
1689         if (th == 8) {
1690                 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1691                 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1692 #ifdef PSXBIOS_LOG
1693                 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1694 #endif
1695                 v0 = 0xffffffff;
1696                 pc0 = ra;
1697                 return;
1698         }
1699 #ifdef PSXBIOS_LOG
1700         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1701 #endif
1702
1703         Thread[th].status = 1;
1704         Thread[th].func    = a0;
1705         Thread[th].reg[29] = a1;
1706         Thread[th].reg[28] = a2;
1707
1708         v0 = th; pc0 = ra;
1709 }
1710
1711 /*
1712  *      int CloseTh(long thread);
1713  */
1714
1715 void psxBios_CloseTh() { // 0f
1716         int th = a0 & 0xff;
1717
1718 #ifdef PSXBIOS_LOG
1719         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1720 #endif
1721
1722         if (Thread[th].status == 0) {
1723                 v0 = 0;
1724         } else {
1725                 Thread[th].status = 0;
1726                 v0 = 1;
1727         }
1728
1729         pc0 = ra;
1730 }
1731
1732 /*
1733  *      int ChangeTh(long thread);
1734  */
1735
1736 void psxBios_ChangeTh() { // 10
1737         int th = a0 & 0xff;
1738
1739 #ifdef PSXBIOS_LOG
1740 //      PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1741 #endif
1742
1743         if (Thread[th].status == 0 || CurThread == th) {
1744                 v0 = 0;
1745
1746                 pc0 = ra;
1747         } else {
1748                 v0 = 1;
1749
1750                 if (Thread[CurThread].status == 2) {
1751                         Thread[CurThread].status = 1;
1752                         Thread[CurThread].func = ra;
1753                         memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1754                 }
1755
1756                 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1757                 pc0 = Thread[th].func;
1758                 Thread[th].status = 2;
1759                 CurThread = th;
1760         }
1761 }
1762
1763 void psxBios_InitPAD() { // 0x12
1764 #ifdef PSXBIOS_LOG
1765         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1766 #endif
1767
1768         pad_buf1 = (char*)Ra0;
1769         pad_buf1len = a1;
1770         pad_buf2 = (char*)Ra2;
1771         pad_buf2len = a3;
1772
1773         v0 = 1; pc0 = ra;
1774 }
1775
1776 void psxBios_StartPAD() { // 13
1777 #ifdef PSXBIOS_LOG
1778         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1779 #endif
1780
1781         psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1782         psxRegs.CP0.n.Status |= 0x401;
1783         pc0 = ra;
1784 }
1785
1786 void psxBios_StopPAD() { // 14
1787 #ifdef PSXBIOS_LOG
1788         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1789 #endif
1790         if (pad_buf == 0){
1791         pad_buf1 = NULL;
1792         pad_buf2 = NULL;
1793         }
1794         pc0 = ra;
1795 }
1796
1797 void psxBios_PAD_init() { // 15
1798 #ifdef PSXBIOS_LOG
1799         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1800 #endif
1801         if (!(a0 == 0x20000000 || a0 == 0x20000001))
1802         {
1803                 v0 = 0;
1804                 pc0 = ra;
1805                 return;
1806         }
1807         psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1808         pad_buf = (int *)Ra1;
1809         *pad_buf = -1;
1810         psxRegs.CP0.n.Status |= 0x401;
1811         v0 = 2;
1812         pc0 = ra;
1813 }
1814
1815 void psxBios_PAD_dr() { // 16
1816 #ifdef PSXBIOS_LOG
1817         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1818 #endif
1819
1820         v0 = -1; pc0 = ra;
1821 }
1822
1823 void psxBios_ReturnFromException() { // 17
1824         LoadRegs();
1825
1826         pc0 = psxRegs.CP0.n.EPC;
1827         if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1828
1829         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1830                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1831 }
1832
1833 void psxBios_ResetEntryInt() { // 18
1834 #ifdef PSXBIOS_LOG
1835         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1836 #endif
1837
1838         jmp_int = NULL;
1839         pc0 = ra;
1840 }
1841
1842 void psxBios_HookEntryInt() { // 19
1843 #ifdef PSXBIOS_LOG
1844         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1845 #endif
1846
1847         jmp_int = (u32*)Ra0;
1848         pc0 = ra;
1849 }
1850
1851 void psxBios_UnDeliverEvent() { // 0x20
1852         int ev, spec;
1853         int i;
1854
1855         GetEv();
1856         GetSpec();
1857
1858 #ifdef PSXBIOS_LOG
1859         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1860 #endif
1861
1862         if (Event[ev][spec].status == EvStALREADY &&
1863                 Event[ev][spec].mode == EvMdNOINTR)
1864                 Event[ev][spec].status = EvStACTIVE;
1865
1866         pc0 = ra;
1867 }
1868
1869 char ffile[64], *pfile;
1870 int nfile;
1871 static void buopen(int mcd, u8 *ptr, u8 *cfg)
1872 {
1873         int i;
1874         u8 *fptr = ptr;
1875
1876         strcpy(FDesc[1 + mcd].name, Ra0+5);
1877         FDesc[1 + mcd].offset = 0;
1878         FDesc[1 + mcd].mode   = a1;
1879
1880         for (i=1; i<16; i++) {
1881                 fptr += 128;
1882                 if ((*fptr & 0xF0) != 0x50) continue;
1883                 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
1884                 FDesc[1 + mcd].mcfile = i;
1885                 SysPrintf("open %s\n", fptr+0xa);
1886                 v0 = 1 + mcd;
1887                 break;
1888         }
1889         if (a1 & 0x200 && v0 == -1) { /* FCREAT */
1890                 fptr = ptr;
1891                 for (i=1; i<16; i++) {
1892                         int j, xor, nblk = a1 >> 16;
1893                         u8 *pptr, *fptr2;
1894
1895                         fptr += 128;
1896                         if ((*fptr & 0xF0) != 0xa0) continue;
1897
1898                         FDesc[1 + mcd].mcfile = i;
1899                         fptr[0] = 0x51;
1900                         fptr[4] = 0x00;
1901                         fptr[5] = 0x20 * nblk;
1902                         fptr[6] = 0x00;
1903                         fptr[7] = 0x00;
1904                         strcpy(fptr+0xa, FDesc[1 + mcd].name);
1905                         pptr = fptr2 = fptr;
1906                         for(j=2; j<=nblk; j++) {
1907                                 int k;
1908                                 for(i++; i<16; i++) {
1909                                         fptr2 += 128;
1910
1911                                         memset(fptr2, 0, 128);
1912                                         fptr2[0] = j < nblk ? 0x52 : 0x53;
1913                                         pptr[8] = i - 1;
1914                                         pptr[9] = 0;
1915                                         for (k=0, xor=0; k<127; k++) xor^= pptr[k];
1916                                         pptr[127] = xor;
1917                                         pptr = fptr2;
1918                                         break;
1919                                 }
1920                                 /* shouldn't this return ENOSPC if i == 16? */
1921                         }
1922                         pptr[8] = pptr[9] = 0xff;
1923                         for (j=0, xor=0; j<127; j++) xor^= pptr[j];
1924                         pptr[127] = xor;
1925                         SysPrintf("openC %s %d\n", ptr, nblk);
1926                         v0 = 1 + mcd;
1927                         /* just go ahead and resave them all */
1928                         SaveMcd(cfg, ptr, 128, 128 * 15);
1929                         break;
1930                 }
1931                 /* shouldn't this return ENOSPC if i == 16? */
1932         }
1933 }
1934
1935 /*
1936  *      int open(char *name , int mode);
1937  */
1938
1939 void psxBios_open() { // 0x32
1940         int i;
1941         char *ptr;
1942         void *pa0 = Ra0;
1943
1944 #ifdef PSXBIOS_LOG
1945         PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
1946 #endif
1947
1948         v0 = -1;
1949
1950         if (pa0) {
1951                 if (!strncmp(pa0, "bu00", 4)) {
1952                         buopen(1, Mcd1Data, Config.Mcd1);
1953                 }
1954
1955                 if (!strncmp(pa0, "bu10", 4)) {
1956                         buopen(2, Mcd2Data, Config.Mcd2);
1957                 }
1958         }
1959
1960         pc0 = ra;
1961 }
1962
1963 /*
1964  *      int lseek(int fd , int offset , int whence);
1965  */
1966
1967 void psxBios_lseek() { // 0x33
1968 #ifdef PSXBIOS_LOG
1969         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
1970 #endif
1971
1972         switch (a2) {
1973                 case 0: // SEEK_SET
1974                         FDesc[a0].offset = a1;
1975                         v0 = a1;
1976 //                      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1977 //                      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1978                         break;
1979
1980                 case 1: // SEEK_CUR
1981                         FDesc[a0].offset+= a1;
1982                         v0 = FDesc[a0].offset;
1983                         break;
1984         }
1985
1986         pc0 = ra;
1987 }
1988
1989
1990 /*
1991  *      int read(int fd , void *buf , int nbytes);
1992  */
1993
1994 void psxBios_read() { // 0x34
1995         char *ptr;
1996         void *pa1 = Ra1;
1997
1998 #ifdef PSXBIOS_LOG
1999         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2000 #endif
2001
2002         v0 = -1;
2003
2004         if (pa1) {
2005                 switch (a0) {
2006                         case 2: buread(pa1, 1, a2); break;
2007                         case 3: buread(pa1, 2, a2); break;
2008                 }
2009         }
2010
2011         pc0 = ra;
2012 }
2013
2014 /*
2015  *      int write(int fd , void *buf , int nbytes);
2016  */
2017
2018 void psxBios_write() { // 0x35/0x03
2019         char *ptr;
2020         void *pa1 = Ra1;
2021
2022 #ifdef PSXBIOS_LOG
2023         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2024 #endif
2025
2026         v0 = -1;
2027         if (!pa1) {
2028                 pc0 = ra;
2029                 return;
2030         }
2031
2032         if (a0 == 1) { // stdout
2033                 char *ptr = pa1;
2034
2035                 v0 = a2;
2036                 while (a2 > 0) {
2037                         SysPrintf("%c", *ptr++); a2--;
2038                 }
2039                 pc0 = ra; return;
2040         }
2041
2042         switch (a0) {
2043                 case 2: buwrite(pa1, 1, a2); break;
2044                 case 3: buwrite(pa1, 2, a2); break;
2045         }
2046
2047         pc0 = ra;
2048 }
2049
2050 /*
2051  *      int close(int fd);
2052  */
2053
2054 void psxBios_close() { // 0x36
2055 #ifdef PSXBIOS_LOG
2056         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2057 #endif
2058
2059         v0 = a0;
2060         pc0 = ra;
2061 }
2062
2063 void psxBios_putchar() { // 3d
2064         SysPrintf("%c", (char)a0);
2065         pc0 = ra;
2066 }
2067
2068 void psxBios_puts() { // 3e/3f
2069         SysPrintf("%s", Ra0);
2070         pc0 = ra;
2071 }
2072
2073 char ffile[64], *pfile;
2074 int nfile;
2075
2076 #define bufile(mcd) { \
2077         while (nfile < 16) { \
2078                 int match=1; \
2079  \
2080                 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
2081                 nfile++; \
2082                 if ((*ptr & 0xF0) != 0x50) continue; \
2083                 /* Bug link files show up as free block. */ \
2084                 if (!ptr[0xa]) continue; \
2085                 ptr+= 0xa; \
2086                 if (pfile[0] == 0) { \
2087                         strncpy(dir->name, ptr, sizeof(dir->name)); \
2088                         dir->name[sizeof(dir->name) - 1] = '\0'; \
2089                 } else for (i=0; i<20; i++) { \
2090                         if (pfile[i] == ptr[i]) { \
2091                                                                 dir->name[i] = ptr[i]; continue; } \
2092                         if (pfile[i] == '?') { \
2093                                 dir->name[i] = ptr[i]; continue; } \
2094                         if (pfile[i] == '*') { \
2095                                 strcpy(dir->name+i, ptr+i); break; } \
2096                         match = 0; break; \
2097                 } \
2098                 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
2099                 if (match == 0) { continue; } \
2100                 dir->size = 8192; \
2101                 v0 = _dir; \
2102                 break; \
2103         } \
2104 }
2105
2106 /*
2107  *      struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2108  */
2109
2110 void psxBios_firstfile() { // 42
2111         struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
2112         void *pa0 = Ra0;
2113         u32 _dir = a1;
2114         char *ptr;
2115         int i;
2116
2117 #ifdef PSXBIOS_LOG
2118         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2119 #endif
2120
2121         v0 = 0;
2122
2123         if (pa0) {
2124                 strcpy(ffile, pa0);
2125                 pfile = ffile+5;
2126                 nfile = 1;
2127                 if (!strncmp(pa0, "bu00", 4)) {
2128                         // firstfile() calls _card_read() internally, so deliver it's event
2129                         DeliverEvent(0x11, 0x2);
2130                         bufile(1);
2131                 } else if (!strncmp(pa0, "bu10", 4)) {
2132                         // firstfile() calls _card_read() internally, so deliver it's event
2133                         DeliverEvent(0x11, 0x2);
2134                         bufile(2);
2135                 }
2136         }
2137
2138         pc0 = ra;
2139 }
2140
2141 /*
2142  *      struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2143  */
2144
2145 void psxBios_nextfile() { // 43
2146         struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2147         u32 _dir = a0;
2148         char *ptr;
2149         int i;
2150
2151 #ifdef PSXBIOS_LOG
2152         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2153 #endif
2154
2155         v0 = 0;
2156
2157         if (!strncmp(ffile, "bu00", 4)) {
2158                 bufile(1);
2159         }
2160
2161         if (!strncmp(ffile, "bu10", 4)) {
2162                 bufile(2);
2163         }
2164
2165         pc0 = ra;
2166 }
2167
2168 #define burename(mcd) { \
2169         for (i=1; i<16; i++) { \
2170                 int namelen, j, xor = 0; \
2171                 ptr = Mcd##mcd##Data + 128 * i; \
2172                 if ((*ptr & 0xF0) != 0x50) continue; \
2173                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2174                 namelen = strlen(Ra1+5); \
2175                 memcpy(ptr+0xa, Ra1+5, namelen); \
2176                 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2177                 for (j=0; j<127; j++) xor^= ptr[j]; \
2178                 ptr[127] = xor; \
2179                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2180                 v0 = 1; \
2181                 break; \
2182         } \
2183 }
2184
2185 /*
2186  *      int rename(char *old, char *new);
2187  */
2188
2189 void psxBios_rename() { // 44
2190         void *pa0 = Ra0;
2191         void *pa1 = Ra1;
2192         char *ptr;
2193         int i;
2194
2195 #ifdef PSXBIOS_LOG
2196         PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2197 #endif
2198
2199         v0 = 0;
2200
2201         if (pa0 && pa1) {
2202                 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2203                         burename(1);
2204                 }
2205
2206                 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2207                         burename(2);
2208                 }
2209         }
2210
2211         pc0 = ra;
2212 }
2213
2214
2215 #define budelete(mcd) { \
2216         for (i=1; i<16; i++) { \
2217                 ptr = Mcd##mcd##Data + 128 * i; \
2218                 if ((*ptr & 0xF0) != 0x50) continue; \
2219                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2220                 *ptr = (*ptr & 0xf) | 0xA0; \
2221                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2222                 SysPrintf("delete %s\n", ptr+0xa); \
2223                 v0 = 1; \
2224                 break; \
2225         } \
2226 }
2227
2228 /*
2229  *      int delete(char *name);
2230  */
2231
2232 void psxBios_delete() { // 45
2233         void *pa0 = Ra0;
2234         char *ptr;
2235         int i;
2236
2237 #ifdef PSXBIOS_LOG
2238         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2239 #endif
2240
2241         v0 = 0;
2242
2243         if (pa0) {
2244                 if (!strncmp(pa0, "bu00", 4)) {
2245                         budelete(1);
2246                 }
2247
2248                 if (!strncmp(pa0, "bu10", 4)) {
2249                         budelete(2);
2250                 }
2251         }
2252
2253         pc0 = ra;
2254 }
2255
2256 void psxBios_InitCARD() { // 4a
2257 #ifdef PSXBIOS_LOG
2258         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2259 #endif
2260
2261         CardState = 0;
2262
2263         pc0 = ra;
2264 }
2265
2266 void psxBios_StartCARD() { // 4b
2267 #ifdef PSXBIOS_LOG
2268         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2269 #endif
2270
2271         if (CardState == 0) CardState = 1;
2272
2273         pc0 = ra;
2274 }
2275
2276 void psxBios_StopCARD() { // 4c
2277 #ifdef PSXBIOS_LOG
2278         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2279 #endif
2280
2281         if (CardState == 1) CardState = 0;
2282
2283         pc0 = ra;
2284 }
2285
2286 void psxBios__card_write() { // 0x4e
2287         void *pa2 = Ra2;
2288         int port;
2289
2290 #ifdef PSXBIOS_LOG
2291         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2292 #endif
2293         /* Function also accepts sector 400h (a bug) */
2294         if (!(a1 <= 0x400))
2295         {
2296                 /* Invalid sectors */
2297                 v0 = 0; pc0 = ra;
2298                 return;
2299         }
2300         card_active_chan = a0;
2301         port = a0 >> 4;
2302
2303         if (pa2) {
2304                 if (port == 0) {
2305                         memcpy(Mcd1Data + a1 * 128, pa2, 128);
2306                         SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2307                 } else {
2308                         memcpy(Mcd2Data + a1 * 128, pa2, 128);
2309                         SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2310                 }
2311         }
2312
2313         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2314 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2315
2316         v0 = 1; pc0 = ra;
2317 }
2318
2319 void psxBios__card_read() { // 0x4f
2320         void *pa2 = Ra2;
2321         int port;
2322
2323 #ifdef PSXBIOS_LOG
2324         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2325 #endif
2326         /* Function also accepts sector 400h (a bug) */
2327         if (!(a1 <= 0x400))
2328         {
2329                 /* Invalid sectors */
2330                 v0 = 0; pc0 = ra;
2331                 return;
2332         }
2333         card_active_chan = a0;
2334         port = a0 >> 4;
2335
2336         if (pa2) {
2337                 if (port == 0) {
2338                         memcpy(pa2, Mcd1Data + a1 * 128, 128);
2339                 } else {
2340                         memcpy(pa2, Mcd2Data + a1 * 128, 128);
2341                 }
2342         }
2343
2344         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2345 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2346
2347         v0 = 1; pc0 = ra;
2348 }
2349
2350 void psxBios__new_card() { // 0x50
2351 #ifdef PSXBIOS_LOG
2352         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2353 #endif
2354
2355         pc0 = ra;
2356 }
2357
2358 void psxBios_Krom2RawAdd() { // 0x51
2359         int i = 0;
2360
2361         const u32 table_8140[][2] = {
2362                 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2363                 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2364                 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2365                 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2366                 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2367                 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2368                 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2369                 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2370                 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2371                 {0xffff, 0}
2372         };
2373
2374         const u32 table_889f[][2] = {
2375                 {0x889f, 0x3d68},  {0x8900, 0x40ec},  {0x897f, 0x4fb0},  {0x8a00, 0x56f4},
2376                 {0x8a7f, 0x65b8},  {0x8b00, 0x6cfc},  {0x8b7f, 0x7bc0},  {0x8c00, 0x8304},
2377                 {0x8c7f, 0x91c8},  {0x8d00, 0x990c},  {0x8d7f, 0xa7d0},  {0x8e00, 0xaf14},
2378                 {0x8e7f, 0xbdd8},  {0x8f00, 0xc51c},  {0x8f7f, 0xd3e0},  {0x9000, 0xdb24},
2379                 {0x907f, 0xe9e8},  {0x9100, 0xf12c},  {0x917f, 0xfff0},  {0x9200, 0x10734},
2380                 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2381                 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2382                 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2383                 {0xffff, 0}
2384         };
2385
2386         if (a0 >= 0x8140 && a0 <= 0x84be) {
2387                 while (table_8140[i][0] <= a0) i++;
2388                 a0 -= table_8140[i - 1][0];
2389                 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2390         } else if (a0 >= 0x889f && a0 <= 0x9872) {
2391                 while (table_889f[i][0] <= a0) i++;
2392                 a0 -= table_889f[i - 1][0];
2393                 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2394         } else {
2395                 v0 = 0xffffffff;
2396         }
2397
2398         pc0 = ra;
2399 }
2400
2401 void psxBios_GetC0Table() { // 56
2402 #ifdef PSXBIOS_LOG
2403         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2404 #endif
2405
2406         v0 = 0x674; pc0 = ra;
2407 }
2408
2409 void psxBios_GetB0Table() { // 57
2410 #ifdef PSXBIOS_LOG
2411         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2412 #endif
2413
2414         v0 = 0x874; pc0 = ra;
2415 }
2416
2417 void psxBios__card_chan() { // 0x58
2418 #ifdef PSXBIOS_LOG
2419         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2420 #endif
2421
2422         v0 = card_active_chan;
2423         pc0 = ra;
2424 }
2425
2426 void psxBios_ChangeClearPad() { // 5b
2427 #ifdef PSXBIOS_LOG
2428         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2429 #endif
2430
2431         pc0 = ra;
2432 }
2433
2434 /* System calls C0 */
2435
2436 /*
2437  * int SysEnqIntRP(int index , long *queue);
2438  */
2439
2440 void psxBios_SysEnqIntRP() { // 02
2441 #ifdef PSXBIOS_LOG
2442         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2443 #endif
2444
2445         SysIntRP[a0] = a1;
2446
2447         v0 = 0; pc0 = ra;
2448 }
2449
2450 /*
2451  * int SysDeqIntRP(int index , long *queue);
2452  */
2453
2454 void psxBios_SysDeqIntRP() { // 03
2455 #ifdef PSXBIOS_LOG
2456         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2457 #endif
2458
2459         SysIntRP[a0] = 0;
2460
2461         v0 = 0; pc0 = ra;
2462 }
2463
2464 void psxBios_ChangeClearRCnt() { // 0a
2465         u32 *ptr;
2466
2467 #ifdef PSXBIOS_LOG
2468         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2469 #endif
2470
2471         ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2472         v0 = *ptr;
2473         *ptr = a1;
2474
2475 //      psxRegs.CP0.n.Status|= 0x404;
2476         pc0 = ra;
2477 }
2478
2479 void psxBios_dummy() {
2480 #ifdef PSXBIOS_LOG
2481         PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2482 #endif
2483         pc0 = ra;
2484 }
2485
2486 void (*biosA0[256])();
2487 void (*biosB0[256])();
2488 void (*biosC0[256])();
2489
2490 #include "sjisfont.h"
2491
2492 void psxBiosInit() {
2493         u32 base, size;
2494         u32 *ptr;
2495         int i;
2496         uLongf len;
2497
2498         for(i = 0; i < 256; i++) {
2499                 biosA0[i] = NULL;
2500                 biosB0[i] = NULL;
2501                 biosC0[i] = NULL;
2502         }
2503         biosA0[0x3e] = psxBios_puts;
2504         biosA0[0x3f] = psxBios_printf;
2505
2506         biosB0[0x3d] = psxBios_putchar;
2507         biosB0[0x3f] = psxBios_puts;
2508
2509         if (!Config.HLE) return;
2510
2511         for(i = 0; i < 256; i++) {
2512                 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2513                 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2514                 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2515         }
2516
2517         biosA0[0x00] = psxBios_open;
2518         biosA0[0x01] = psxBios_lseek;
2519         biosA0[0x02] = psxBios_read;
2520         biosA0[0x03] = psxBios_write;
2521         biosA0[0x04] = psxBios_close;
2522         //biosA0[0x05] = psxBios_ioctl;
2523         //biosA0[0x06] = psxBios_exit;
2524         //biosA0[0x07] = psxBios_sys_a0_07;
2525         biosA0[0x08] = psxBios_getc;
2526         biosA0[0x09] = psxBios_putc;
2527         biosA0[0x0a] = psxBios_todigit;
2528         //biosA0[0x0b] = psxBios_atof;
2529         //biosA0[0x0c] = psxBios_strtoul;
2530         //biosA0[0x0d] = psxBios_strtol;
2531         biosA0[0x0e] = psxBios_abs;
2532         biosA0[0x0f] = psxBios_labs;
2533         biosA0[0x10] = psxBios_atoi;
2534         biosA0[0x11] = psxBios_atol;
2535         //biosA0[0x12] = psxBios_atob;
2536         biosA0[0x13] = psxBios_setjmp;
2537         biosA0[0x14] = psxBios_longjmp;
2538         biosA0[0x15] = psxBios_strcat;
2539         biosA0[0x16] = psxBios_strncat;
2540         biosA0[0x17] = psxBios_strcmp;
2541         biosA0[0x18] = psxBios_strncmp;
2542         biosA0[0x19] = psxBios_strcpy;
2543         biosA0[0x1a] = psxBios_strncpy;
2544         biosA0[0x1b] = psxBios_strlen;
2545         biosA0[0x1c] = psxBios_index;
2546         biosA0[0x1d] = psxBios_rindex;
2547         biosA0[0x1e] = psxBios_strchr;
2548         biosA0[0x1f] = psxBios_strrchr;
2549         biosA0[0x20] = psxBios_strpbrk;
2550         biosA0[0x21] = psxBios_strspn;
2551         biosA0[0x22] = psxBios_strcspn;
2552         biosA0[0x23] = psxBios_strtok;
2553         biosA0[0x24] = psxBios_strstr;
2554         biosA0[0x25] = psxBios_toupper;
2555         biosA0[0x26] = psxBios_tolower;
2556         biosA0[0x27] = psxBios_bcopy;
2557         biosA0[0x28] = psxBios_bzero;
2558         biosA0[0x29] = psxBios_bcmp;
2559         biosA0[0x2a] = psxBios_memcpy;
2560         biosA0[0x2b] = psxBios_memset;
2561         biosA0[0x2c] = psxBios_memmove;
2562         biosA0[0x2d] = psxBios_memcmp;
2563         biosA0[0x2e] = psxBios_memchr;
2564         biosA0[0x2f] = psxBios_rand;
2565         biosA0[0x30] = psxBios_srand;
2566         biosA0[0x31] = psxBios_qsort;
2567         //biosA0[0x32] = psxBios_strtod;
2568         biosA0[0x33] = psxBios_malloc;
2569         biosA0[0x34] = psxBios_free;
2570         //biosA0[0x35] = psxBios_lsearch;
2571         //biosA0[0x36] = psxBios_bsearch;
2572         biosA0[0x37] = psxBios_calloc;
2573         biosA0[0x38] = psxBios_realloc;
2574         biosA0[0x39] = psxBios_InitHeap;
2575         //biosA0[0x3a] = psxBios__exit;
2576         biosA0[0x3b] = psxBios_getchar;
2577         biosA0[0x3c] = psxBios_putchar;
2578         //biosA0[0x3d] = psxBios_gets;
2579         //biosA0[0x40] = psxBios_sys_a0_40;
2580         //biosA0[0x41] = psxBios_LoadTest;
2581         biosA0[0x42] = psxBios_Load;
2582         biosA0[0x43] = psxBios_Exec;
2583         biosA0[0x44] = psxBios_FlushCache;
2584         //biosA0[0x45] = psxBios_InstallInterruptHandler;
2585         biosA0[0x46] = psxBios_GPU_dw;
2586         biosA0[0x47] = psxBios_mem2vram;
2587         biosA0[0x48] = psxBios_SendGPU;
2588         biosA0[0x49] = psxBios_GPU_cw;
2589         biosA0[0x4a] = psxBios_GPU_cwb;
2590         biosA0[0x4b] = psxBios_GPU_SendPackets;
2591         biosA0[0x4c] = psxBios_sys_a0_4c;
2592         biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2593         //biosA0[0x4e] = psxBios_GPU_sync;
2594         //biosA0[0x4f] = psxBios_sys_a0_4f;
2595         //biosA0[0x50] = psxBios_sys_a0_50;
2596         biosA0[0x51] = psxBios_LoadExec;
2597         //biosA0[0x52] = psxBios_GetSysSp;
2598         //biosA0[0x53] = psxBios_sys_a0_53;
2599         //biosA0[0x54] = psxBios__96_init_a54;
2600         //biosA0[0x55] = psxBios__bu_init_a55;
2601         //biosA0[0x56] = psxBios__96_remove_a56;
2602         //biosA0[0x57] = psxBios_sys_a0_57;
2603         //biosA0[0x58] = psxBios_sys_a0_58;
2604         //biosA0[0x59] = psxBios_sys_a0_59;
2605         //biosA0[0x5a] = psxBios_sys_a0_5a;
2606         //biosA0[0x5b] = psxBios_dev_tty_init;
2607         //biosA0[0x5c] = psxBios_dev_tty_open;
2608         //biosA0[0x5d] = psxBios_sys_a0_5d;
2609         //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2610         //biosA0[0x5f] = psxBios_dev_cd_open;
2611         //biosA0[0x60] = psxBios_dev_cd_read;
2612         //biosA0[0x61] = psxBios_dev_cd_close;
2613         //biosA0[0x62] = psxBios_dev_cd_firstfile;
2614         //biosA0[0x63] = psxBios_dev_cd_nextfile;
2615         //biosA0[0x64] = psxBios_dev_cd_chdir;
2616         //biosA0[0x65] = psxBios_dev_card_open;
2617         //biosA0[0x66] = psxBios_dev_card_read;
2618         //biosA0[0x67] = psxBios_dev_card_write;
2619         //biosA0[0x68] = psxBios_dev_card_close;
2620         //biosA0[0x69] = psxBios_dev_card_firstfile;
2621         //biosA0[0x6a] = psxBios_dev_card_nextfile;
2622         //biosA0[0x6b] = psxBios_dev_card_erase;
2623         //biosA0[0x6c] = psxBios_dev_card_undelete;
2624         //biosA0[0x6d] = psxBios_dev_card_format;
2625         //biosA0[0x6e] = psxBios_dev_card_rename;
2626         //biosA0[0x6f] = psxBios_dev_card_6f;
2627         biosA0[0x70] = psxBios__bu_init;
2628         biosA0[0x71] = psxBios__96_init;
2629         biosA0[0x72] = psxBios__96_remove;
2630         //biosA0[0x73] = psxBios_sys_a0_73;
2631         //biosA0[0x74] = psxBios_sys_a0_74;
2632         //biosA0[0x75] = psxBios_sys_a0_75;
2633         //biosA0[0x76] = psxBios_sys_a0_76;
2634         //biosA0[0x77] = psxBios_sys_a0_77;
2635         //biosA0[0x78] = psxBios__96_CdSeekL;
2636         //biosA0[0x79] = psxBios_sys_a0_79;
2637         //biosA0[0x7a] = psxBios_sys_a0_7a;
2638         //biosA0[0x7b] = psxBios_sys_a0_7b;
2639         //biosA0[0x7c] = psxBios__96_CdGetStatus;
2640         //biosA0[0x7d] = psxBios_sys_a0_7d;
2641         //biosA0[0x7e] = psxBios__96_CdRead;
2642         //biosA0[0x7f] = psxBios_sys_a0_7f;
2643         //biosA0[0x80] = psxBios_sys_a0_80;
2644         //biosA0[0x81] = psxBios_sys_a0_81;
2645         //biosA0[0x82] = psxBios_sys_a0_82;
2646         //biosA0[0x83] = psxBios_sys_a0_83;
2647         //biosA0[0x84] = psxBios_sys_a0_84;
2648         //biosA0[0x85] = psxBios__96_CdStop;
2649         //biosA0[0x86] = psxBios_sys_a0_86;
2650         //biosA0[0x87] = psxBios_sys_a0_87;
2651         //biosA0[0x88] = psxBios_sys_a0_88;
2652         //biosA0[0x89] = psxBios_sys_a0_89;
2653         //biosA0[0x8a] = psxBios_sys_a0_8a;
2654         //biosA0[0x8b] = psxBios_sys_a0_8b;
2655         //biosA0[0x8c] = psxBios_sys_a0_8c;
2656         //biosA0[0x8d] = psxBios_sys_a0_8d;
2657         //biosA0[0x8e] = psxBios_sys_a0_8e;
2658         //biosA0[0x8f] = psxBios_sys_a0_8f;
2659         //biosA0[0x90] = psxBios_sys_a0_90;
2660         //biosA0[0x91] = psxBios_sys_a0_91;
2661         //biosA0[0x92] = psxBios_sys_a0_92;
2662         //biosA0[0x93] = psxBios_sys_a0_93;
2663         //biosA0[0x94] = psxBios_sys_a0_94;
2664         //biosA0[0x95] = psxBios_sys_a0_95;
2665         //biosA0[0x96] = psxBios_AddCDROMDevice;
2666         //biosA0[0x97] = psxBios_AddMemCardDevide;
2667         //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2668         //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2669         //biosA0[0x9a] = psxBios_sys_a0_9a;
2670         //biosA0[0x9b] = psxBios_sys_a0_9b;
2671         //biosA0[0x9c] = psxBios_SetConf;
2672         //biosA0[0x9d] = psxBios_GetConf;
2673         //biosA0[0x9e] = psxBios_sys_a0_9e;
2674         biosA0[0x9f] = psxBios_SetMem;
2675         //biosA0[0xa0] = psxBios__boot;
2676         //biosA0[0xa1] = psxBios_SystemError;
2677         //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2678         //biosA0[0xa3] = psxBios_DequeueCdIntr;
2679         //biosA0[0xa4] = psxBios_sys_a0_a4;
2680         //biosA0[0xa5] = psxBios_ReadSector;
2681         //biosA0[0xa6] = psxBios_get_cd_status;
2682         //biosA0[0xa7] = psxBios_bufs_cb_0;
2683         //biosA0[0xa8] = psxBios_bufs_cb_1;
2684         //biosA0[0xa9] = psxBios_bufs_cb_2;
2685         //biosA0[0xaa] = psxBios_bufs_cb_3;
2686         biosA0[0xab] = psxBios__card_info;
2687         biosA0[0xac] = psxBios__card_load;
2688         //biosA0[0axd] = psxBios__card_auto;
2689         //biosA0[0xae] = psxBios_bufs_cd_4;
2690         //biosA0[0xaf] = psxBios_sys_a0_af;
2691         //biosA0[0xb0] = psxBios_sys_a0_b0;
2692         //biosA0[0xb1] = psxBios_sys_a0_b1;
2693         //biosA0[0xb2] = psxBios_do_a_long_jmp
2694         //biosA0[0xb3] = psxBios_sys_a0_b3;
2695         //biosA0[0xb4] = psxBios_sub_function;
2696 //*******************B0 CALLS****************************
2697         //biosB0[0x00] = psxBios_SysMalloc;
2698         //biosB0[0x01] = psxBios_sys_b0_01;
2699         biosB0[0x02] = psxBios_SetRCnt;
2700         biosB0[0x03] = psxBios_GetRCnt;
2701         biosB0[0x04] = psxBios_StartRCnt;
2702         biosB0[0x05] = psxBios_StopRCnt;
2703         biosB0[0x06] = psxBios_ResetRCnt;
2704         biosB0[0x07] = psxBios_DeliverEvent;
2705         biosB0[0x08] = psxBios_OpenEvent;
2706         biosB0[0x09] = psxBios_CloseEvent;
2707         biosB0[0x0a] = psxBios_WaitEvent;
2708         biosB0[0x0b] = psxBios_TestEvent;
2709         biosB0[0x0c] = psxBios_EnableEvent;
2710         biosB0[0x0d] = psxBios_DisableEvent;
2711         biosB0[0x0e] = psxBios_OpenTh;
2712         biosB0[0x0f] = psxBios_CloseTh;
2713         biosB0[0x10] = psxBios_ChangeTh;
2714         //biosB0[0x11] = psxBios_psxBios_b0_11;
2715         biosB0[0x12] = psxBios_InitPAD;
2716         biosB0[0x13] = psxBios_StartPAD;
2717         biosB0[0x14] = psxBios_StopPAD;
2718         biosB0[0x15] = psxBios_PAD_init;
2719         biosB0[0x16] = psxBios_PAD_dr;
2720         biosB0[0x17] = psxBios_ReturnFromException;
2721         biosB0[0x18] = psxBios_ResetEntryInt;
2722         biosB0[0x19] = psxBios_HookEntryInt;
2723         //biosB0[0x1a] = psxBios_sys_b0_1a;
2724         //biosB0[0x1b] = psxBios_sys_b0_1b;
2725         //biosB0[0x1c] = psxBios_sys_b0_1c;
2726         //biosB0[0x1d] = psxBios_sys_b0_1d;
2727         //biosB0[0x1e] = psxBios_sys_b0_1e;
2728         //biosB0[0x1f] = psxBios_sys_b0_1f;
2729         biosB0[0x20] = psxBios_UnDeliverEvent;
2730         //biosB0[0x21] = psxBios_sys_b0_21;
2731         //biosB0[0x22] = psxBios_sys_b0_22;
2732         //biosB0[0x23] = psxBios_sys_b0_23;
2733         //biosB0[0x24] = psxBios_sys_b0_24;
2734         //biosB0[0x25] = psxBios_sys_b0_25;
2735         //biosB0[0x26] = psxBios_sys_b0_26;
2736         //biosB0[0x27] = psxBios_sys_b0_27;
2737         //biosB0[0x28] = psxBios_sys_b0_28;
2738         //biosB0[0x29] = psxBios_sys_b0_29;
2739         //biosB0[0x2a] = psxBios_sys_b0_2a;
2740         //biosB0[0x2b] = psxBios_sys_b0_2b;
2741         //biosB0[0x2c] = psxBios_sys_b0_2c;
2742         //biosB0[0x2d] = psxBios_sys_b0_2d;
2743         //biosB0[0x2e] = psxBios_sys_b0_2e;
2744         //biosB0[0x2f] = psxBios_sys_b0_2f;
2745         //biosB0[0x30] = psxBios_sys_b0_30;
2746         //biosB0[0x31] = psxBios_sys_b0_31;
2747         biosB0[0x32] = psxBios_open;
2748         biosB0[0x33] = psxBios_lseek;
2749         biosB0[0x34] = psxBios_read;
2750         biosB0[0x35] = psxBios_write;
2751         biosB0[0x36] = psxBios_close;
2752         //biosB0[0x37] = psxBios_ioctl;
2753         //biosB0[0x38] = psxBios_exit;
2754         //biosB0[0x39] = psxBios_sys_b0_39;
2755         //biosB0[0x3a] = psxBios_getc;
2756         //biosB0[0x3b] = psxBios_putc;
2757         biosB0[0x3c] = psxBios_getchar;
2758         //biosB0[0x3e] = psxBios_gets;
2759         //biosB0[0x40] = psxBios_cd;
2760         biosB0[0x41] = psxBios_format;
2761         biosB0[0x42] = psxBios_firstfile;
2762         biosB0[0x43] = psxBios_nextfile;
2763         biosB0[0x44] = psxBios_rename;
2764         biosB0[0x45] = psxBios_delete;
2765         //biosB0[0x46] = psxBios_undelete;
2766         //biosB0[0x47] = psxBios_AddDevice;
2767         //biosB0[0x48] = psxBios_RemoteDevice;
2768         //biosB0[0x49] = psxBios_PrintInstalledDevices;
2769         biosB0[0x4a] = psxBios_InitCARD;
2770         biosB0[0x4b] = psxBios_StartCARD;
2771         biosB0[0x4c] = psxBios_StopCARD;
2772         //biosB0[0x4d] = psxBios_sys_b0_4d;
2773         biosB0[0x4e] = psxBios__card_write;
2774         biosB0[0x4f] = psxBios__card_read;
2775         biosB0[0x50] = psxBios__new_card;
2776         biosB0[0x51] = psxBios_Krom2RawAdd;
2777         //biosB0[0x52] = psxBios_sys_b0_52;
2778         //biosB0[0x53] = psxBios_sys_b0_53;
2779         //biosB0[0x54] = psxBios__get_errno;
2780         //biosB0[0x55] = psxBios__get_error;
2781         biosB0[0x56] = psxBios_GetC0Table;
2782         biosB0[0x57] = psxBios_GetB0Table;
2783         biosB0[0x58] = psxBios__card_chan;
2784         //biosB0[0x59] = psxBios_sys_b0_59;
2785         //biosB0[0x5a] = psxBios_sys_b0_5a;
2786         biosB0[0x5b] = psxBios_ChangeClearPad;
2787         //biosB0[0x5c] = psxBios__card_status;
2788         //biosB0[0x5d] = psxBios__card_wait;
2789 //*******************C0 CALLS****************************
2790         //biosC0[0x00] = psxBios_InitRCnt;
2791         //biosC0[0x01] = psxBios_InitException;
2792         biosC0[0x02] = psxBios_SysEnqIntRP;
2793         biosC0[0x03] = psxBios_SysDeqIntRP;
2794         //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2795         //biosC0[0x05] = psxBios_get_free_TCB_slot;
2796         //biosC0[0x06] = psxBios_ExceptionHandler;
2797         //biosC0[0x07] = psxBios_InstallExeptionHandler;
2798         //biosC0[0x08] = psxBios_SysInitMemory;
2799         //biosC0[0x09] = psxBios_SysInitKMem;
2800         biosC0[0x0a] = psxBios_ChangeClearRCnt;
2801         //biosC0[0x0b] = psxBios_SystemError;
2802         //biosC0[0x0c] = psxBios_InitDefInt;
2803         //biosC0[0x0d] = psxBios_sys_c0_0d;
2804         //biosC0[0x0e] = psxBios_sys_c0_0e;
2805         //biosC0[0x0f] = psxBios_sys_c0_0f;
2806         //biosC0[0x10] = psxBios_sys_c0_10;
2807         //biosC0[0x11] = psxBios_sys_c0_11;
2808         //biosC0[0x12] = psxBios_InstallDevices;
2809         //biosC0[0x13] = psxBios_FlushStfInOutPut;
2810         //biosC0[0x14] = psxBios_sys_c0_14;
2811         //biosC0[0x15] = psxBios__cdevinput;
2812         //biosC0[0x16] = psxBios__cdevscan;
2813         //biosC0[0x17] = psxBios__circgetc;
2814         //biosC0[0x18] = psxBios__circputc;
2815         //biosC0[0x19] = psxBios_ioabort;
2816         //biosC0[0x1a] = psxBios_sys_c0_1a
2817         //biosC0[0x1b] = psxBios_KernelRedirect;
2818         //biosC0[0x1c] = psxBios_PatchAOTable;
2819 //************** THE END ***************************************
2820 /**/
2821         base = 0x1000;
2822         size = sizeof(EvCB) * 32;
2823         Event = (void *)&psxR[base]; base += size * 6;
2824         memset(Event, 0, size * 6);
2825         HwEV = Event;
2826         EvEV = Event + 32;
2827         RcEV = Event + 32 * 2;
2828         UeEV = Event + 32 * 3;
2829         SwEV = Event + 32 * 4;
2830         ThEV = Event + 32 * 5;
2831
2832         ptr = (u32 *)&psxM[0x0874]; // b0 table
2833         ptr[0] = SWAPu32(0x4c54 - 0x884);
2834
2835         ptr = (u32 *)&psxM[0x0674]; // c0 table
2836         ptr[6] = SWAPu32(0xc80);
2837
2838         memset(SysIntRP, 0, sizeof(SysIntRP));
2839         memset(Thread, 0, sizeof(Thread));
2840         Thread[0].status = 2; // main thread
2841
2842         jmp_int = NULL;
2843         pad_buf = NULL;
2844         pad_buf1 = NULL;
2845         pad_buf2 = NULL;
2846         pad_buf1len = pad_buf2len = 0;
2847         heap_addr = NULL;
2848         heap_end = NULL;
2849         CardState = -1;
2850         CurThread = 0;
2851         memset(FDesc, 0, sizeof(FDesc));
2852
2853         psxMu32ref(0x0150) = SWAPu32(0x160);
2854         psxMu32ref(0x0154) = SWAPu32(0x320);
2855         psxMu32ref(0x0160) = SWAPu32(0x248);
2856         strcpy((char *)&psxM[0x248], "bu");
2857 /*      psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
2858         psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
2859         psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
2860         psxMu32ref(0x09e0) = SWAPu32(0x43d0);
2861         psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
2862 */
2863         // opcode HLE
2864         psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
2865         psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
2866         psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
2867         psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
2868         psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
2869         psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
2870         psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
2871         psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
2872         psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
2873         psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
2874
2875         // initial stack pointer for BIOS interrupt
2876         psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
2877
2878         // initial RNG seed
2879         psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
2880
2881         // fonts
2882         len = 0x80000 - 0x66000;
2883         uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
2884         len = 0x80000 - 0x69d68;
2885         uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
2886
2887         // memory size 2 MB
2888         psxHu32ref(0x1060) = SWAPu32(0x00000b88);
2889
2890         hleSoftCall = FALSE;
2891 }
2892
2893 void psxBiosShutdown() {
2894 }
2895
2896 #define psxBios_PADpoll(pad) { \
2897         PAD##pad##_startPoll(pad); \
2898         pad_buf##pad[0] = 0; \
2899         pad_buf##pad[1] = PAD##pad##_poll(0x42); \
2900         if (!(pad_buf##pad[1] & 0x0f)) { \
2901                 bufcount = 32; \
2902         } else { \
2903                 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
2904         } \
2905         PAD##pad##_poll(0); \
2906         i = 2; \
2907         while (bufcount--) { \
2908                 pad_buf##pad[i++] = PAD##pad##_poll(0); \
2909         } \
2910 }
2911
2912 void biosInterrupt() {
2913         int i, bufcount;
2914
2915 //      if (psxHu32(0x1070) & 0x1) { // Vsync
2916                 if (pad_buf != NULL) {
2917                         u32 *buf = (u32*)pad_buf;
2918
2919                         if (!Config.UseNet) {
2920                                 PAD1_startPoll(1);
2921                                 if (PAD1_poll(0x42) == 0x23) {
2922                                         PAD1_poll(0);
2923                                         *buf = PAD1_poll(0) << 8;
2924                                         *buf |= PAD1_poll(0);
2925                                         PAD1_poll(0);
2926                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
2927                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
2928                                 } else {
2929                                         PAD1_poll(0);
2930                                         *buf = PAD1_poll(0) << 8;
2931                                         *buf|= PAD1_poll(0);
2932                                 }
2933
2934                                 PAD2_startPoll(2);
2935                                 if (PAD2_poll(0x42) == 0x23) {
2936                                         PAD2_poll(0);
2937                                         *buf |= PAD2_poll(0) << 24;
2938                                         *buf |= PAD2_poll(0) << 16;
2939                                         PAD2_poll(0);
2940                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
2941                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
2942                                 } else {
2943                                         PAD2_poll(0);
2944                                         *buf |= PAD2_poll(0) << 24;
2945                                         *buf |= PAD2_poll(0) << 16;
2946                                 }
2947                         } else {
2948                                 u16 data;
2949
2950                                 PAD1_startPoll(1);
2951                                 PAD1_poll(0x42);
2952                                 PAD1_poll(0);
2953                                 data = PAD1_poll(0) << 8;
2954                                 data |= PAD1_poll(0);
2955
2956                                 if (NET_sendPadData(&data, 2) == -1)
2957                                         netError();
2958
2959                                 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
2960                                         netError();
2961                                 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
2962                                         netError();
2963                         }
2964                 }
2965                 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
2966                         psxBios_PADpoll(1);
2967
2968                         if (NET_sendPadData(pad_buf1, i) == -1)
2969                                 netError();
2970
2971                         if (NET_recvPadData(pad_buf1, 1) == -1)
2972                                 netError();
2973                         if (NET_recvPadData(pad_buf2, 2) == -1)
2974                                 netError();
2975                 } else {
2976                         if (pad_buf1) {
2977                                 psxBios_PADpoll(1);
2978                         }
2979
2980                         if (pad_buf2) {
2981                                 psxBios_PADpoll(2);
2982                         }
2983                 }
2984
2985         if (psxHu32(0x1070) & 0x1) { // Vsync
2986                 if (RcEV[3][1].status == EvStACTIVE) {
2987                         softCall(RcEV[3][1].fhandler);
2988 //                      hwWrite32(0x1f801070, ~(1));
2989                 }
2990         }
2991
2992         if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
2993                 int i;
2994
2995                 for (i = 0; i < 3; i++) {
2996                         if (psxHu32(0x1070) & (1 << (i + 4))) {
2997                                 if (RcEV[i][1].status == EvStACTIVE) {
2998                                         softCall(RcEV[i][1].fhandler);
2999                                 }
3000                                 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3001                         }
3002                 }
3003         }
3004 }
3005
3006 void psxBiosException() {
3007         int i;
3008
3009         switch (psxRegs.CP0.n.Cause & 0x3c) {
3010                 case 0x00: // Interrupt
3011 #ifdef PSXCPU_LOG
3012 //                      PSXCPU_LOG("interrupt\n");
3013 #endif
3014                         SaveRegs();
3015
3016                         sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3017
3018                         biosInterrupt();
3019
3020                         for (i = 0; i < 8; i++) {
3021                                 if (SysIntRP[i]) {
3022                                         u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3023
3024                                         s0 = queue[2];
3025                                         softCall(queue[1]);
3026                                 }
3027                         }
3028
3029                         if (jmp_int != NULL) {
3030                                 int i;
3031
3032                                 psxHwWrite32(0x1f801070, 0xffffffff);
3033
3034                                 ra = jmp_int[0];
3035                                 sp = jmp_int[1];
3036                                 fp = jmp_int[2];
3037                                 for (i = 0; i < 8; i++) // s0-s7
3038                                          psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3039                                 gp = jmp_int[11];
3040
3041                                 v0 = 1;
3042                                 pc0 = ra;
3043                                 return;
3044                         }
3045                         psxHwWrite16(0x1f801070, 0);
3046                         break;
3047
3048                 case 0x20: // Syscall
3049 #ifdef PSXCPU_LOG
3050                         PSXCPU_LOG("syscall exp %x\n", a0);
3051 #endif
3052                         switch (a0) {
3053                                 case 1: // EnterCritical - disable irq's
3054                                         /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3055                                         v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3056                                         psxRegs.CP0.n.Status &= ~0x404;
3057                                         break;
3058
3059                                 case 2: // ExitCritical - enable irq's
3060                                         psxRegs.CP0.n.Status |= 0x404;
3061                                         break;
3062                         }
3063                         pc0 = psxRegs.CP0.n.EPC + 4;
3064
3065                         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3066                                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3067                         return;
3068
3069                 default:
3070 #ifdef PSXCPU_LOG
3071                         PSXCPU_LOG("unknown bios exception!\n");
3072 #endif
3073                         break;
3074         }
3075
3076         pc0 = psxRegs.CP0.n.EPC;
3077         if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3078
3079         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3080                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3081 }
3082
3083 #define bfreeze(ptr, size) { \
3084         if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3085         if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3086         base += size; \
3087 }
3088
3089 #define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3090 #define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3091
3092 #define bfreezepsxMptr(ptr, type) { \
3093         if (Mode == 1) { \
3094                 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3095                 else psxRu32ref(base) = 0; \
3096         } else { \
3097                 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3098                 else (ptr) = NULL; \
3099         } \
3100         base += sizeof(u32); \
3101 }
3102
3103 void psxBiosFreeze(int Mode) {
3104         u32 base = 0x40000;
3105
3106         bfreezepsxMptr(jmp_int, u32);
3107         bfreezepsxMptr(pad_buf, int);
3108         bfreezepsxMptr(pad_buf1, char);
3109         bfreezepsxMptr(pad_buf2, char);
3110         bfreezepsxMptr(heap_addr, u32);
3111         bfreezel(&pad_buf1len);
3112         bfreezel(&pad_buf2len);
3113         bfreezes(regs);
3114         bfreezes(SysIntRP);
3115         bfreezel(&CardState);
3116         bfreezes(Thread);
3117         bfreezel(&CurThread);
3118         bfreezes(FDesc);
3119         bfreezel(&card_active_chan);
3120 }