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         v0 = a0;
 756         /* Same as memset here (See memset below) */
 757         if (a1 > 0x7FFFFFFF || a1 == 0)
 758         {
 759                 v0 = 0;
 760                 pc0 = ra;
 761                 return;
 762         }
 763         else if (a0 == 0)
 764         {
 765                 pc0 = ra;
 766                 return;
 767         }
 768         while ((s32)a1-- > 0) *p++ = '\0';
 769         a1 = 0;
 770         pc0 = ra;
 771 }
 772
 773 void psxBios_bcmp() { // 0x29
 774         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 775
 776         if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
 777
 778         while ((s32)a2-- > 0) {
 779                 if (*p1++ != *p2++) {
 780                         v0 = *p1 - *p2; // BUG: compare the NEXT byte
 781                         pc0 = ra;
 782                         return;
 783                 }
 784         }
 785
 786         v0 = 0; pc0 = ra;
 787 }
 788
 789 void psxBios_memcpy() { // 0x2a
 790         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 791         s32 n=0;
 792         v0 = a0;
 793         if (a0 == 0 || a2 > 0x7FFFFFFF)
 794         {
 795                 pc0 = ra;
 796                 return;
 797         }
 798         while ((s32)a2-- > 0) {
 799                 n++;
 800                 *p1++ = *p2++;
 801         }
 802         a2 = 0;
 803         pc0 = ra;
 804 }
 805
 806 void psxBios_memset() { // 0x2b
 807         char *p = (char *)Ra0;
 808         v0 = a0;
 809         if (a2 > 0x7FFFFFFF || a2 == 0)
 810         {
 811                 v0 = 0;
 812                 pc0 = ra;
 813                 return;
 814         }
 815         if (a0 == 0)
 816         {
 817                 pc0 = ra;
 818                 return;
 819         }
 820         while ((s32)a2-- > 0) *p++ = (char)a1;
 821         a2 = 0;
 822         v0 = a0; pc0 = ra;
 823 }
 824
 825 void psxBios_memmove() { // 0x2c
 826         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 827
 828         if (p2 <= p1 && p2 + a2 > p1) {
 829                 a2++; // BUG: copy one more byte here
 830                 p1 += a2;
 831                 p2 += a2;
 832                 while ((s32)a2-- > 0) *--p1 = *--p2;
 833         } else {
 834                 while ((s32)a2-- > 0) *p1++ = *p2++;
 835         }
 836
 837         v0 = a0; pc0 = ra;
 838 }
 839
 840 void psxBios_memcmp() { // 0x2d
 841         psxBios_bcmp();
 842 }
 843
 844 void psxBios_memchr() { // 0x2e
 845         char *p = (char *)Ra0;
 846
 847         while ((s32)a2-- > 0) {
 848                 if (*p++ != (s8)a1) continue;
 849                 v0 = a0 + (p - (char *)Ra0 - 1);
 850                 pc0 = ra;
 851                 return;
 852         }
 853
 854         v0 = 0; pc0 = ra;
 855 }
 856
 857 void psxBios_rand() { // 0x2f
 858         u32 s = psxMu32(0x9010) * 1103515245 + 12345;
 859         v0 = (s >> 16) & 0x7fff;
 860         psxMu32ref(0x9010) = SWAPu32(s);
 861         pc0 = ra;
 862 }
 863
 864 void psxBios_srand() { // 0x30
 865         psxMu32ref(0x9010) = SWAPu32(a0);
 866         pc0 = ra;
 867 }
 868
 869 static u32 qscmpfunc, qswidth;
 870
 871 static inline int qscmp(char *a, char *b) {
 872         u32 sa0 = a0;
 873
 874         a0 = sa0 + (a - (char *)PSXM(sa0));
 875         a1 = sa0 + (b - (char *)PSXM(sa0));
 876
 877         softCall2(qscmpfunc);
 878
 879         a0 = sa0;
 880         return (s32)v0;
 881 }
 882
 883 static inline void qexchange(char *i, char *j) {
 884         char t;
 885         int n = qswidth;
 886
 887         do {
 888                 t = *i;
 889                 *i++ = *j;
 890                 *j++ = t;
 891         } while (--n);
 892 }
 893
 894 static inline void q3exchange(char *i, char *j, char *k) {
 895         char t;
 896         int n = qswidth;
 897
 898         do {
 899                 t = *i;
 900                 *i++ = *k;
 901                 *k++ = *j;
 902                 *j++ = t;
 903         } while (--n);
 904 }
 905
 906 static void qsort_main(char *a, char *l) {
 907         char *i, *j, *lp, *hp;
 908         int c;
 909         unsigned int n;
 910
 911 start:
 912         if ((n = l - a) <= qswidth)
 913                 return;
 914         n = qswidth * (n / (2 * qswidth));
 915         hp = lp = a + n;
 916         i = a;
 917         j = l - qswidth;
 918         while (TRUE) {
 919                 if (i < lp) {
 920                         if ((c = qscmp(i, lp)) == 0) {
 921                                 qexchange(i, lp -= qswidth);
 922                                 continue;
 923                         }
 924                         if (c < 0) {
 925                                 i += qswidth;
 926                                 continue;
 927                         }
 928                 }
 929
 930 loop:
 931                 if (j > hp) {
 932                         if ((c = qscmp(hp, j)) == 0) {
 933                                 qexchange(hp += qswidth, j);
 934                                 goto loop;
 935                         }
 936                         if (c > 0) {
 937                                 if (i == lp) {
 938                                         q3exchange(i, hp += qswidth, j);
 939                                         i = lp += qswidth;
 940                                         goto loop;
 941                                 }
 942                                 qexchange(i, j);
 943                                 j -= qswidth;
 944                                 i += qswidth;
 945                                 continue;
 946                         }
 947                         j -= qswidth;
 948                         goto loop;
 949                 }
 950
 951                 if (i == lp) {
 952                         if (lp - a >= l - hp) {
 953                                 qsort_main(hp + qswidth, l);
 954                                 l = lp;
 955                         } else {
 956                                 qsort_main(a, lp);
 957                                 a = hp + qswidth;
 958                         }
 959                         goto start;
 960                 }
 961
 962                 q3exchange(j, lp -= qswidth, i);
 963                 j = hp -= qswidth;
 964         }
 965 }
 966
 967 void psxBios_qsort() { // 0x31
 968         qswidth = a2;
 969         qscmpfunc = a3;
 970         qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
 971
 972         pc0 = ra;
 973 }
 974
 975 void psxBios_malloc() { // 0x33
 976         unsigned int *chunk, *newchunk = NULL;
 977         unsigned int dsize = 0, csize, cstat;
 978         int colflag;
 979 #ifdef PSXBIOS_LOG
 980         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
 981 #endif
 982
 983         // scan through heap and combine free chunks of space
 984         chunk = heap_addr;
 985         colflag = 0;
 986         while(chunk < heap_end) {
 987                 // get size and status of actual chunk
 988                 csize = ((u32)*chunk) & 0xfffffffc;
 989                 cstat = ((u32)*chunk) & 1;
 990
 991                 // it's a free chunk
 992                 if(cstat == 1) {
 993                         if(colflag == 0) {
 994                                 newchunk = chunk;
 995                                 dsize = csize;
 996                                 colflag = 1;                    // let's begin a new collection of free memory
 997                         }
 998                         else dsize += (csize+4);        // add the new size including header
 999                 }
1000                 // not a free chunk: did we start a collection ?
1001                 else {
1002                         if(colflag == 1) {                      // collection is over
1003                                 colflag = 0;
1004                                 *newchunk = SWAP32(dsize | 1);
1005                         }
1006                 }
1007
1008                 // next chunk
1009                 chunk = (u32*)((uptr)chunk + csize + 4);
1010         }
1011         // if neccessary free memory on end of heap
1012         if (colflag == 1)
1013                 *newchunk = SWAP32(dsize | 1);
1014
1015         chunk = heap_addr;
1016         csize = ((u32)*chunk) & 0xfffffffc;
1017         cstat = ((u32)*chunk) & 1;
1018         dsize = (a0 + 3) & 0xfffffffc;
1019
1020         // exit on uninitialized heap
1021         if (chunk == NULL) {
1022                 SysPrintf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
1023                 v0 = 0;
1024                 pc0 = ra;
1025                 return;
1026         }
1027
1028         // search an unused chunk that is big enough until the end of the heap
1029         while ((dsize > csize || cstat == 0) && chunk < heap_end ) {
1030                 chunk = (u32*)((uptr)chunk + csize + 4);
1031                 csize = ((u32)*chunk) & 0xfffffffc;
1032                 cstat = ((u32)*chunk) & 1;
1033         }
1034
1035         // catch out of memory
1036         if(chunk >= heap_end) { SysPrintf("malloc %x,%x: Out of memory error!\n", v0, a0); v0 = 0; pc0 = ra; return; }
1037
1038         // allocate memory
1039         if(dsize == csize) {
1040                 // chunk has same size
1041                 *chunk &= 0xfffffffc;
1042         }
1043         else {
1044                 // split free chunk
1045                 *chunk = SWAP32(dsize);
1046                 newchunk = (u32*)((uptr)chunk + dsize + 4);
1047                 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
1048         }
1049
1050         // return pointer to allocated memory
1051         v0 = ((unsigned long)chunk - (unsigned long)psxM) + 4;
1052         v0|= 0x80000000;
1053         SysPrintf ("malloc %x,%x\n", v0, a0);
1054         pc0 = ra;
1055 }
1056
1057 void psxBios_free() { // 0x34
1058
1059 #ifdef PSXBIOS_LOG
1060         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1061 #endif
1062
1063         SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1064
1065         *(u32*)(Ra0-4) |= 1;    // set chunk to free
1066         pc0 = ra;
1067 }
1068
1069 void psxBios_calloc() { // 0x37
1070         void *pv0;
1071 #ifdef PSXBIOS_LOG
1072         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1073 #endif
1074
1075         a0 = a0 * a1;
1076         psxBios_malloc();
1077         pv0 = Rv0;
1078         if (pv0)
1079                 memset(pv0, 0, a0);
1080 }
1081
1082 void psxBios_realloc() { // 0x38
1083         u32 block = a0;
1084         u32 size = a1;
1085 #ifdef PSXBIOS_LOG
1086         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1087 #endif
1088
1089         a0 = block;
1090         /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1091         if (block == 0)
1092         {
1093                 psxBios_malloc();
1094         }
1095         /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1096         else if (size == 0)
1097         {
1098                 psxBios_free();
1099         }
1100         /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1101         /* Note that it is not quite implemented this way here. */
1102         else
1103         {
1104                 psxBios_free();
1105                 a0 = size;
1106                 psxBios_malloc();
1107         }
1108 }
1109
1110
1111 /* InitHeap(void *block , int n) */
1112 void psxBios_InitHeap() { // 0x39
1113         unsigned int size;
1114
1115 #ifdef PSXBIOS_LOG
1116         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1117 #endif
1118
1119         if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1120         else size = a1;
1121
1122         size &= 0xfffffffc;
1123
1124         heap_addr = (u32 *)Ra0;
1125         heap_end = (u32 *)((u8 *)heap_addr + size);
1126         *heap_addr = SWAP32(size | 1);
1127
1128         SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
1129
1130         pc0 = ra;
1131 }
1132
1133 void psxBios_getchar() { //0x3b
1134         v0 = getchar(); pc0 = ra;
1135 }
1136
1137 void psxBios_printf() { // 0x3f
1138         char tmp[1024];
1139         char tmp2[1024];
1140         u32 save[4];
1141         char *ptmp = tmp;
1142         int n=1, i=0, j;
1143         void *psp;
1144
1145         psp = PSXM(sp);
1146         if (psp) {
1147                 memcpy(save, psp, 4 * 4);
1148                 psxMu32ref(sp) = SWAP32((u32)a0);
1149                 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1150                 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1151                 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1152         }
1153
1154         while (Ra0[i]) {
1155                 switch (Ra0[i]) {
1156                         case '%':
1157                                 j = 0;
1158                                 tmp2[j++] = '%';
1159 _start:
1160                                 switch (Ra0[++i]) {
1161                                         case '.':
1162                                         case 'l':
1163                                                 tmp2[j++] = Ra0[i]; goto _start;
1164                                         default:
1165                                                 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1166                                                         tmp2[j++] = Ra0[i];
1167                                                         goto _start;
1168                                                 }
1169                                                 break;
1170                                 }
1171                                 tmp2[j++] = Ra0[i];
1172                                 tmp2[j] = 0;
1173
1174                                 switch (Ra0[i]) {
1175                                         case 'f': case 'F':
1176                                                 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1177                                         case 'a': case 'A':
1178                                         case 'e': case 'E':
1179                                         case 'g': case 'G':
1180                                                 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1181                                         case 'p':
1182                                         case 'i': case 'u':
1183                                         case 'd': case 'D':
1184                                         case 'o': case 'O':
1185                                         case 'x': case 'X':
1186                                                 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1187                                         case 'c':
1188                                                 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1189                                         case 's':
1190                                                 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1191                                         case '%':
1192                                                 *ptmp++ = Ra0[i]; break;
1193                                 }
1194                                 i++;
1195                                 break;
1196                         default:
1197                                 *ptmp++ = Ra0[i++];
1198                 }
1199         }
1200         *ptmp = 0;
1201
1202         if (psp)
1203                 memcpy(psp, save, 4 * 4);
1204
1205         SysPrintf("%s", tmp);
1206
1207         pc0 = ra;
1208 }
1209
1210 void psxBios_format() { // 0x41
1211         if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1212         {
1213                 CreateMcd(Config.Mcd1);
1214                 LoadMcd(1, Config.Mcd1);
1215                 v0 = 1;
1216         }
1217         else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1218         {
1219                 CreateMcd(Config.Mcd2);
1220                 LoadMcd(2, Config.Mcd2);
1221                 v0 = 1;
1222         }
1223         else
1224         {
1225                 v0 = 0;
1226         }
1227         pc0 = ra;
1228 }
1229
1230 /*
1231  *      long Load(char *name, struct EXEC *header);
1232  */
1233
1234 void psxBios_Load() { // 0x42
1235         EXE_HEADER eheader;
1236         void *pa1;
1237
1238 #ifdef PSXBIOS_LOG
1239         PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1240 #endif
1241
1242         pa1 = Ra1;
1243         if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1244                 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
1245                 v0 = 1;
1246         } else v0 = 0;
1247
1248         pc0 = ra;
1249 }
1250
1251 /*
1252  *      int Exec(struct EXEC *header , int argc , char **argv);
1253  */
1254
1255 void psxBios_Exec() { // 43
1256         EXEC *header = (EXEC*)Ra0;
1257         u32 tmp;
1258
1259 #ifdef PSXBIOS_LOG
1260         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1261 #endif
1262
1263         header->_sp = sp;
1264         header->_fp = fp;
1265         header->_sp = sp;
1266         header->_gp = gp;
1267         header->ret = ra;
1268         header->base = s0;
1269
1270         if (header->S_addr != 0) {
1271                 tmp = header->S_addr + header->s_size;
1272                 sp = tmp;
1273                 fp = sp;
1274         }
1275
1276         gp = header->gp0;
1277
1278         s0 = a0;
1279
1280         a0 = a1;
1281         a1 = a2;
1282
1283         ra = 0x8000;
1284         pc0 = header->_pc0;
1285 }
1286
1287 void psxBios_FlushCache() { // 44
1288 #ifdef PSXBIOS_LOG
1289         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1290 #endif
1291
1292         pc0 = ra;
1293 }
1294
1295 void psxBios_GPU_dw() { // 0x46
1296         int size;
1297         s32 *ptr;
1298
1299 #ifdef PSXBIOS_LOG
1300         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1301 #endif
1302
1303         GPU_writeData(0xa0000000);
1304         GPU_writeData((a1<<16)|(a0&0xffff));
1305         GPU_writeData((a3<<16)|(a2&0xffff));
1306         size = (a2*a3+1)/2;
1307         ptr = (s32*)PSXM(Rsp[4]);  //that is correct?
1308         do {
1309                 GPU_writeData(SWAP32(*ptr));
1310                 ptr++;
1311         } while(--size);
1312
1313         pc0 = ra;
1314 }
1315
1316 void psxBios_mem2vram() { // 0x47
1317         int size;
1318
1319         GPU_writeData(0xa0000000);
1320         GPU_writeData((a1<<16)|(a0&0xffff));
1321         GPU_writeData((a3<<16)|(a2&0xffff));
1322         size = (a2*a3+1)/2;
1323         GPU_writeStatus(0x04000002);
1324         psxHwWrite32(0x1f8010f4,0);
1325         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1326         psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1327         psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1328         psxHwWrite32(0x1f8010a8,0x01000201);
1329
1330         pc0 = ra;
1331 }
1332
1333 void psxBios_SendGPU() { // 0x48
1334         GPU_writeStatus(a0);
1335         gpuSyncPluginSR();
1336         pc0 = ra;
1337 }
1338
1339 void psxBios_GPU_cw() { // 0x49
1340         GPU_writeData(a0);
1341         pc0 = ra;
1342 }
1343
1344 void psxBios_GPU_cwb() { // 0x4a
1345         s32 *ptr = (s32*)Ra0;
1346         int size = a1;
1347         while(size--) {
1348                 GPU_writeData(SWAP32(*ptr));
1349                 ptr++;
1350         }
1351
1352         pc0 = ra;
1353 }
1354
1355 void psxBios_GPU_SendPackets() { //4b:
1356         GPU_writeStatus(0x04000002);
1357         psxHwWrite32(0x1f8010f4,0);
1358         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1359         psxHwWrite32(0x1f8010a0,a0);
1360         psxHwWrite32(0x1f8010a4,0);
1361         psxHwWrite32(0x1f8010a8,0x010000401);
1362         pc0 = ra;
1363 }
1364
1365 void psxBios_sys_a0_4c() { // 0x4c GPU relate
1366         psxHwWrite32(0x1f8010a8,0x00000401);
1367         GPU_writeData(0x0400000);
1368         GPU_writeData(0x0200000);
1369         GPU_writeData(0x0100000);
1370         v0 = 0x1f801814;
1371         pc0 = ra;
1372 }
1373
1374 void psxBios_GPU_GetGPUStatus() { // 0x4d
1375         v0 = GPU_readStatus();
1376         pc0 = ra;
1377 }
1378
1379 #undef s_addr
1380
1381 void psxBios_LoadExec() { // 51
1382         EXEC *header = (EXEC*)PSXM(0xf000);
1383         u32 s_addr, s_size;
1384
1385 #ifdef PSXBIOS_LOG
1386         PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1387 #endif
1388         s_addr = a1; s_size = a2;
1389
1390         a1 = 0xf000;
1391         psxBios_Load();
1392
1393         header->S_addr = s_addr;
1394         header->s_size = s_size;
1395
1396         a0 = 0xf000; a1 = 0; a2 = 0;
1397         psxBios_Exec();
1398 }
1399
1400 void psxBios__bu_init() { // 70
1401 #ifdef PSXBIOS_LOG
1402         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1403 #endif
1404
1405         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1406         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1407
1408         pc0 = ra;
1409 }
1410
1411 void psxBios__96_init() { // 71
1412 #ifdef PSXBIOS_LOG
1413         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1414 #endif
1415
1416         pc0 = ra;
1417 }
1418
1419 void psxBios__96_remove() { // 72
1420 #ifdef PSXBIOS_LOG
1421         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1422 #endif
1423
1424         pc0 = ra;
1425 }
1426
1427 void psxBios_SetMem() { // 9f
1428         u32 new = psxHu32(0x1060);
1429
1430 #ifdef PSXBIOS_LOG
1431         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1432 #endif
1433
1434         switch(a0) {
1435                 case 2:
1436                         psxHu32ref(0x1060) = SWAP32(new);
1437                         psxMu32ref(0x060) = a0;
1438                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1439                         break;
1440
1441                 case 8:
1442                         psxHu32ref(0x1060) = SWAP32(new | 0x300);
1443                         psxMu32ref(0x060) = a0;
1444                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1445
1446                 default:
1447                         SysPrintf("Effective memory must be 2/8 MBytes\n");
1448                 break;
1449         }
1450
1451         pc0 = ra;
1452 }
1453
1454 void psxBios__card_info() { // ab
1455 #ifdef PSXBIOS_LOG
1456         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1457 #endif
1458         u32 ret;
1459         card_active_chan = a0;
1460
1461         switch (card_active_chan)
1462         {
1463         case 0x00: case 0x01: case 0x02: case 0x03:
1464                 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1465                 break;
1466         case 0x10: case 0x11: case 0x12: case 0x13:
1467                 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1468                 break;
1469         default:
1470 #ifdef PSXBIOS_LOG
1471                 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1472 #endif
1473                 ret = 0x11;
1474                 break;
1475         }
1476
1477 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1478 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1479         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1480         DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
1481
1482         v0 = 1; pc0 = ra;
1483 }
1484
1485 void psxBios__card_load() { // ac
1486 #ifdef PSXBIOS_LOG
1487         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1488 #endif
1489
1490         card_active_chan = a0;
1491
1492 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1493         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1494
1495         v0 = 1; pc0 = ra;
1496 }
1497
1498 /* System calls B0 */
1499
1500 void psxBios_SetRCnt() { // 02
1501 #ifdef PSXBIOS_LOG
1502         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1503 #endif
1504
1505         a0&= 0x3;
1506         if (a0 != 3) {
1507                 u32 mode=0;
1508
1509                 psxRcntWtarget(a0, a1);
1510                 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1511                 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1512                 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1513                 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1514                 else         { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1515
1516                 psxRcntWmode(a0, mode);
1517         }
1518         pc0 = ra;
1519 }
1520
1521 void psxBios_GetRCnt() { // 03
1522 #ifdef PSXBIOS_LOG
1523         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1524 #endif
1525
1526         a0&= 0x3;
1527         if (a0 != 3) v0 = psxRcntRcount(a0);
1528         else v0 = 0;
1529         pc0 = ra;
1530 }
1531
1532 void psxBios_StartRCnt() { // 04
1533 #ifdef PSXBIOS_LOG
1534         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1535 #endif
1536
1537         a0&= 0x3;
1538         if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1539         else psxHu32ref(0x1074)|= SWAPu32(0x1);
1540         v0 = 1; pc0 = ra;
1541 }
1542
1543 void psxBios_StopRCnt() { // 05
1544 #ifdef PSXBIOS_LOG
1545         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1546 #endif
1547
1548         a0&= 0x3;
1549         if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1550         else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1551         pc0 = ra;
1552 }
1553
1554 void psxBios_ResetRCnt() { // 06
1555 #ifdef PSXBIOS_LOG
1556         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1557 #endif
1558
1559         a0&= 0x3;
1560         if (a0 != 3) {
1561                 psxRcntWmode(a0, 0);
1562                 psxRcntWtarget(a0, 0);
1563                 psxRcntWcount(a0, 0);
1564         }
1565         pc0 = ra;
1566 }
1567
1568
1569 /* gets ev for use with Event */
1570 #define GetEv() \
1571         ev = (a0 >> 24) & 0xf; \
1572         if (ev == 0xf) ev = 0x5; \
1573         ev*= 32; \
1574         ev+= a0&0x1f;
1575
1576 /* gets spec for use with Event */
1577 #define GetSpec() \
1578         spec = 0; \
1579         switch (a1) { \
1580                 case 0x0301: spec = 16; break; \
1581                 case 0x0302: spec = 17; break; \
1582                 default: \
1583                         for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1584                         break; \
1585         }
1586
1587 void psxBios_DeliverEvent() { // 07
1588         int ev, spec;
1589         int i;
1590
1591         GetEv();
1592         GetSpec();
1593
1594 #ifdef PSXBIOS_LOG
1595         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1596 #endif
1597
1598         DeliverEvent(ev, spec);
1599
1600         pc0 = ra;
1601 }
1602
1603 void psxBios_OpenEvent() { // 08
1604         int ev, spec;
1605         int i;
1606
1607         GetEv();
1608         GetSpec();
1609
1610 #ifdef PSXBIOS_LOG
1611         PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1612 #endif
1613
1614         Event[ev][spec].status = EvStWAIT;
1615         Event[ev][spec].mode = a2;
1616         Event[ev][spec].fhandler = a3;
1617
1618         v0 = ev | (spec << 8);
1619         pc0 = ra;
1620 }
1621
1622 void psxBios_CloseEvent() { // 09
1623         int ev, spec;
1624
1625         ev   = a0 & 0xff;
1626         spec = (a0 >> 8) & 0xff;
1627
1628 #ifdef PSXBIOS_LOG
1629         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1630 #endif
1631
1632         Event[ev][spec].status = EvStUNUSED;
1633
1634         v0 = 1; pc0 = ra;
1635 }
1636
1637 void psxBios_WaitEvent() { // 0a
1638         int ev, spec;
1639
1640         ev   = a0 & 0xff;
1641         spec = (a0 >> 8) & 0xff;
1642 #ifdef PSXBIOS_LOG
1643         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1644 #endif
1645         if (Event[ev][spec].status == EvStUNUSED)
1646         {
1647                 v0 = 0;
1648                 pc0 = ra;
1649                 return;
1650         }
1651
1652         if (Event[ev][spec].status == EvStALREADY)
1653         {
1654                 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1655                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1656                 v0 = 1;
1657                 pc0 = ra;
1658                 return;
1659         }
1660
1661         v0 = 0;
1662         pc0 = ra;
1663 }
1664
1665 void psxBios_TestEvent() { // 0b
1666         int ev, spec;
1667
1668         ev   = a0 & 0xff;
1669         spec = (a0 >> 8) & 0xff;
1670
1671         if (Event[ev][spec].status == EvStALREADY) {
1672                 Event[ev][spec].status = EvStACTIVE; v0 = 1;
1673         } else v0 = 0;
1674
1675 #ifdef PSXBIOS_LOG
1676         PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1677 #endif
1678
1679         pc0 = ra;
1680 }
1681
1682 void psxBios_EnableEvent() { // 0c
1683         int ev, spec;
1684
1685         ev   = a0 & 0xff;
1686         spec = (a0 >> 8) & 0xff;
1687
1688 #ifdef PSXBIOS_LOG
1689         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1690 #endif
1691
1692         Event[ev][spec].status = EvStACTIVE;
1693
1694         v0 = 1; pc0 = ra;
1695 }
1696
1697 void psxBios_DisableEvent() { // 0d
1698         int ev, spec;
1699
1700         ev   = a0 & 0xff;
1701         spec = (a0 >> 8) & 0xff;
1702
1703 #ifdef PSXBIOS_LOG
1704         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1705 #endif
1706
1707         Event[ev][spec].status = EvStWAIT;
1708
1709         v0 = 1; pc0 = ra;
1710 }
1711
1712 /*
1713  *      long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1714  */
1715
1716 void psxBios_OpenTh() { // 0e
1717         int th;
1718
1719         for (th=1; th<8; th++)
1720         {
1721                 if (Thread[th].status == 0) break;
1722
1723         }
1724         if (th == 8) {
1725                 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1726                 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1727 #ifdef PSXBIOS_LOG
1728                 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1729 #endif
1730                 v0 = 0xffffffff;
1731                 pc0 = ra;
1732                 return;
1733         }
1734 #ifdef PSXBIOS_LOG
1735         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1736 #endif
1737
1738         Thread[th].status = 1;
1739         Thread[th].func    = a0;
1740         Thread[th].reg[29] = a1;
1741         Thread[th].reg[28] = a2;
1742
1743         v0 = th; pc0 = ra;
1744 }
1745
1746 /*
1747  *      int CloseTh(long thread);
1748  */
1749
1750 void psxBios_CloseTh() { // 0f
1751         int th = a0 & 0xff;
1752
1753 #ifdef PSXBIOS_LOG
1754         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1755 #endif
1756
1757         if (Thread[th].status == 0) {
1758                 v0 = 0;
1759         } else {
1760                 Thread[th].status = 0;
1761                 v0 = 1;
1762         }
1763
1764         pc0 = ra;
1765 }
1766
1767 /*
1768  *      int ChangeTh(long thread);
1769  */
1770
1771 void psxBios_ChangeTh() { // 10
1772         int th = a0 & 0xff;
1773
1774 #ifdef PSXBIOS_LOG
1775 //      PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1776 #endif
1777
1778         if (Thread[th].status == 0 || CurThread == th) {
1779                 v0 = 0;
1780
1781                 pc0 = ra;
1782         } else {
1783                 v0 = 1;
1784
1785                 if (Thread[CurThread].status == 2) {
1786                         Thread[CurThread].status = 1;
1787                         Thread[CurThread].func = ra;
1788                         memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1789                 }
1790
1791                 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1792                 pc0 = Thread[th].func;
1793                 Thread[th].status = 2;
1794                 CurThread = th;
1795         }
1796 }
1797
1798 void psxBios_InitPAD() { // 0x12
1799 #ifdef PSXBIOS_LOG
1800         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1801 #endif
1802
1803         pad_buf1 = (char*)Ra0;
1804         pad_buf1len = a1;
1805         pad_buf2 = (char*)Ra2;
1806         pad_buf2len = a3;
1807
1808         v0 = 1; pc0 = ra;
1809 }
1810
1811 void psxBios_StartPAD() { // 13
1812 #ifdef PSXBIOS_LOG
1813         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1814 #endif
1815
1816         psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1817         psxRegs.CP0.n.Status |= 0x401;
1818         pc0 = ra;
1819 }
1820
1821 void psxBios_StopPAD() { // 14
1822 #ifdef PSXBIOS_LOG
1823         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1824 #endif
1825         if (pad_buf == 0){
1826         pad_buf1 = NULL;
1827         pad_buf2 = NULL;
1828         }
1829         pc0 = ra;
1830 }
1831
1832 void psxBios_PAD_init() { // 15
1833 #ifdef PSXBIOS_LOG
1834         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1835 #endif
1836         if (!(a0 == 0x20000000 || a0 == 0x20000001))
1837         {
1838                 v0 = 0;
1839                 pc0 = ra;
1840                 return;
1841         }
1842         psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1843         pad_buf = (int *)Ra1;
1844         *pad_buf = -1;
1845         psxRegs.CP0.n.Status |= 0x401;
1846         v0 = 2;
1847         pc0 = ra;
1848 }
1849
1850 void psxBios_PAD_dr() { // 16
1851 #ifdef PSXBIOS_LOG
1852         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1853 #endif
1854
1855         v0 = -1; pc0 = ra;
1856 }
1857
1858 void psxBios_ReturnFromException() { // 17
1859         LoadRegs();
1860
1861         pc0 = psxRegs.CP0.n.EPC;
1862         if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1863
1864         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1865                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1866 }
1867
1868 void psxBios_ResetEntryInt() { // 18
1869 #ifdef PSXBIOS_LOG
1870         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1871 #endif
1872
1873         jmp_int = NULL;
1874         pc0 = ra;
1875 }
1876
1877 void psxBios_HookEntryInt() { // 19
1878 #ifdef PSXBIOS_LOG
1879         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1880 #endif
1881
1882         jmp_int = (u32*)Ra0;
1883         pc0 = ra;
1884 }
1885
1886 void psxBios_UnDeliverEvent() { // 0x20
1887         int ev, spec;
1888         int i;
1889
1890         GetEv();
1891         GetSpec();
1892
1893 #ifdef PSXBIOS_LOG
1894         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1895 #endif
1896
1897         if (Event[ev][spec].status == EvStALREADY &&
1898                 Event[ev][spec].mode == EvMdNOINTR)
1899                 Event[ev][spec].status = EvStACTIVE;
1900
1901         pc0 = ra;
1902 }
1903
1904 char ffile[64], *pfile;
1905 int nfile;
1906 static void buopen(int mcd, u8 *ptr, u8 *cfg)
1907 {
1908         int i;
1909         u8 *fptr = ptr;
1910
1911         strcpy(FDesc[1 + mcd].name, Ra0+5);
1912         FDesc[1 + mcd].offset = 0;
1913         FDesc[1 + mcd].mode   = a1;
1914
1915         for (i=1; i<16; i++) {
1916                 fptr += 128;
1917                 if ((*fptr & 0xF0) != 0x50) continue;
1918                 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
1919                 FDesc[1 + mcd].mcfile = i;
1920                 SysPrintf("open %s\n", fptr+0xa);
1921                 v0 = 1 + mcd;
1922                 break;
1923         }
1924         if (a1 & 0x200 && v0 == -1) { /* FCREAT */
1925                 fptr = ptr;
1926                 for (i=1; i<16; i++) {
1927                         int j, xor, nblk = a1 >> 16;
1928                         u8 *pptr, *fptr2;
1929
1930                         fptr += 128;
1931                         if ((*fptr & 0xF0) != 0xa0) continue;
1932
1933                         FDesc[1 + mcd].mcfile = i;
1934                         fptr[0] = 0x51;
1935                         fptr[4] = 0x00;
1936                         fptr[5] = 0x20 * nblk;
1937                         fptr[6] = 0x00;
1938                         fptr[7] = 0x00;
1939                         strcpy(fptr+0xa, FDesc[1 + mcd].name);
1940                         pptr = fptr2 = fptr;
1941                         for(j=2; j<=nblk; j++) {
1942                                 int k;
1943                                 for(i++; i<16; i++) {
1944                                         fptr2 += 128;
1945
1946                                         memset(fptr2, 0, 128);
1947                                         fptr2[0] = j < nblk ? 0x52 : 0x53;
1948                                         pptr[8] = i - 1;
1949                                         pptr[9] = 0;
1950                                         for (k=0, xor=0; k<127; k++) xor^= pptr[k];
1951                                         pptr[127] = xor;
1952                                         pptr = fptr2;
1953                                         break;
1954                                 }
1955                                 /* shouldn't this return ENOSPC if i == 16? */
1956                         }
1957                         pptr[8] = pptr[9] = 0xff;
1958                         for (j=0, xor=0; j<127; j++) xor^= pptr[j];
1959                         pptr[127] = xor;
1960                         SysPrintf("openC %s %d\n", ptr, nblk);
1961                         v0 = 1 + mcd;
1962                         /* just go ahead and resave them all */
1963                         SaveMcd(cfg, ptr, 128, 128 * 15);
1964                         break;
1965                 }
1966                 /* shouldn't this return ENOSPC if i == 16? */
1967         }
1968 }
1969
1970 /*
1971  *      int open(char *name , int mode);
1972  */
1973
1974 void psxBios_open() { // 0x32
1975         int i;
1976         char *ptr;
1977         void *pa0 = Ra0;
1978
1979 #ifdef PSXBIOS_LOG
1980         PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
1981 #endif
1982
1983         v0 = -1;
1984
1985         if (pa0) {
1986                 if (!strncmp(pa0, "bu00", 4)) {
1987                         buopen(1, Mcd1Data, Config.Mcd1);
1988                 }
1989
1990                 if (!strncmp(pa0, "bu10", 4)) {
1991                         buopen(2, Mcd2Data, Config.Mcd2);
1992                 }
1993         }
1994
1995         pc0 = ra;
1996 }
1997
1998 /*
1999  *      int lseek(int fd , int offset , int whence);
2000  */
2001
2002 void psxBios_lseek() { // 0x33
2003 #ifdef PSXBIOS_LOG
2004         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2005 #endif
2006
2007         switch (a2) {
2008                 case 0: // SEEK_SET
2009                         FDesc[a0].offset = a1;
2010                         v0 = a1;
2011 //                      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2012 //                      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2013                         break;
2014
2015                 case 1: // SEEK_CUR
2016                         FDesc[a0].offset+= a1;
2017                         v0 = FDesc[a0].offset;
2018                         break;
2019         }
2020
2021         pc0 = ra;
2022 }
2023
2024
2025 /*
2026  *      int read(int fd , void *buf , int nbytes);
2027  */
2028
2029 void psxBios_read() { // 0x34
2030         char *ptr;
2031         void *pa1 = Ra1;
2032
2033 #ifdef PSXBIOS_LOG
2034         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2035 #endif
2036
2037         v0 = -1;
2038
2039         if (pa1) {
2040                 switch (a0) {
2041                         case 2: buread(pa1, 1, a2); break;
2042                         case 3: buread(pa1, 2, a2); break;
2043                 }
2044         }
2045
2046         pc0 = ra;
2047 }
2048
2049 /*
2050  *      int write(int fd , void *buf , int nbytes);
2051  */
2052
2053 void psxBios_write() { // 0x35/0x03
2054         char *ptr;
2055         void *pa1 = Ra1;
2056
2057 #ifdef PSXBIOS_LOG
2058         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2059 #endif
2060
2061         v0 = -1;
2062         if (!pa1) {
2063                 pc0 = ra;
2064                 return;
2065         }
2066
2067         if (a0 == 1) { // stdout
2068                 char *ptr = pa1;
2069
2070                 v0 = a2;
2071                 while (a2 > 0) {
2072                         SysPrintf("%c", *ptr++); a2--;
2073                 }
2074                 pc0 = ra; return;
2075         }
2076
2077         switch (a0) {
2078                 case 2: buwrite(pa1, 1, a2); break;
2079                 case 3: buwrite(pa1, 2, a2); break;
2080         }
2081
2082         pc0 = ra;
2083 }
2084
2085 /*
2086  *      int close(int fd);
2087  */
2088
2089 void psxBios_close() { // 0x36
2090 #ifdef PSXBIOS_LOG
2091         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2092 #endif
2093
2094         v0 = a0;
2095         pc0 = ra;
2096 }
2097
2098 void psxBios_putchar() { // 3d
2099         SysPrintf("%c", (char)a0);
2100         pc0 = ra;
2101 }
2102
2103 void psxBios_puts() { // 3e/3f
2104         SysPrintf("%s", Ra0);
2105         pc0 = ra;
2106 }
2107
2108 char ffile[64], *pfile;
2109 int nfile;
2110
2111 #define bufile(mcd) { \
2112         while (nfile < 16) { \
2113                 int match=1; \
2114  \
2115                 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
2116                 nfile++; \
2117                 if ((*ptr & 0xF0) != 0x50) continue; \
2118                 /* Bug link files show up as free block. */ \
2119                 if (!ptr[0xa]) continue; \
2120                 ptr+= 0xa; \
2121                 if (pfile[0] == 0) { \
2122                         strncpy(dir->name, ptr, sizeof(dir->name)); \
2123                         dir->name[sizeof(dir->name) - 1] = '\0'; \
2124                 } else for (i=0; i<20; i++) { \
2125                         if (pfile[i] == ptr[i]) { \
2126                                                                 dir->name[i] = ptr[i]; continue; } \
2127                         if (pfile[i] == '?') { \
2128                                 dir->name[i] = ptr[i]; continue; } \
2129                         if (pfile[i] == '*') { \
2130                                 strcpy(dir->name+i, ptr+i); break; } \
2131                         match = 0; break; \
2132                 } \
2133                 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
2134                 if (match == 0) { continue; } \
2135                 dir->size = 8192; \
2136                 v0 = _dir; \
2137                 break; \
2138         } \
2139 }
2140
2141 /*
2142  *      struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2143  */
2144
2145 void psxBios_firstfile() { // 42
2146         struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
2147         void *pa0 = Ra0;
2148         u32 _dir = a1;
2149         char *ptr;
2150         int i;
2151
2152 #ifdef PSXBIOS_LOG
2153         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2154 #endif
2155
2156         v0 = 0;
2157
2158         if (pa0) {
2159                 strcpy(ffile, pa0);
2160                 pfile = ffile+5;
2161                 nfile = 1;
2162                 if (!strncmp(pa0, "bu00", 4)) {
2163                         // firstfile() calls _card_read() internally, so deliver it's event
2164                         DeliverEvent(0x11, 0x2);
2165                         bufile(1);
2166                 } else if (!strncmp(pa0, "bu10", 4)) {
2167                         // firstfile() calls _card_read() internally, so deliver it's event
2168                         DeliverEvent(0x11, 0x2);
2169                         bufile(2);
2170                 }
2171         }
2172
2173         pc0 = ra;
2174 }
2175
2176 /*
2177  *      struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2178  */
2179
2180 void psxBios_nextfile() { // 43
2181         struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2182         u32 _dir = a0;
2183         char *ptr;
2184         int i;
2185
2186 #ifdef PSXBIOS_LOG
2187         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2188 #endif
2189
2190         v0 = 0;
2191
2192         if (!strncmp(ffile, "bu00", 4)) {
2193                 bufile(1);
2194         }
2195
2196         if (!strncmp(ffile, "bu10", 4)) {
2197                 bufile(2);
2198         }
2199
2200         pc0 = ra;
2201 }
2202
2203 #define burename(mcd) { \
2204         for (i=1; i<16; i++) { \
2205                 int namelen, j, xor = 0; \
2206                 ptr = Mcd##mcd##Data + 128 * i; \
2207                 if ((*ptr & 0xF0) != 0x50) continue; \
2208                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2209                 namelen = strlen(Ra1+5); \
2210                 memcpy(ptr+0xa, Ra1+5, namelen); \
2211                 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2212                 for (j=0; j<127; j++) xor^= ptr[j]; \
2213                 ptr[127] = xor; \
2214                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2215                 v0 = 1; \
2216                 break; \
2217         } \
2218 }
2219
2220 /*
2221  *      int rename(char *old, char *new);
2222  */
2223
2224 void psxBios_rename() { // 44
2225         void *pa0 = Ra0;
2226         void *pa1 = Ra1;
2227         char *ptr;
2228         int i;
2229
2230 #ifdef PSXBIOS_LOG
2231         PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2232 #endif
2233
2234         v0 = 0;
2235
2236         if (pa0 && pa1) {
2237                 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2238                         burename(1);
2239                 }
2240
2241                 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2242                         burename(2);
2243                 }
2244         }
2245
2246         pc0 = ra;
2247 }
2248
2249
2250 #define budelete(mcd) { \
2251         for (i=1; i<16; i++) { \
2252                 ptr = Mcd##mcd##Data + 128 * i; \
2253                 if ((*ptr & 0xF0) != 0x50) continue; \
2254                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2255                 *ptr = (*ptr & 0xf) | 0xA0; \
2256                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2257                 SysPrintf("delete %s\n", ptr+0xa); \
2258                 v0 = 1; \
2259                 break; \
2260         } \
2261 }
2262
2263 /*
2264  *      int delete(char *name);
2265  */
2266
2267 void psxBios_delete() { // 45
2268         void *pa0 = Ra0;
2269         char *ptr;
2270         int i;
2271
2272 #ifdef PSXBIOS_LOG
2273         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2274 #endif
2275
2276         v0 = 0;
2277
2278         if (pa0) {
2279                 if (!strncmp(pa0, "bu00", 4)) {
2280                         budelete(1);
2281                 }
2282
2283                 if (!strncmp(pa0, "bu10", 4)) {
2284                         budelete(2);
2285                 }
2286         }
2287
2288         pc0 = ra;
2289 }
2290
2291 void psxBios_InitCARD() { // 4a
2292 #ifdef PSXBIOS_LOG
2293         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2294 #endif
2295
2296         CardState = 0;
2297
2298         pc0 = ra;
2299 }
2300
2301 void psxBios_StartCARD() { // 4b
2302 #ifdef PSXBIOS_LOG
2303         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2304 #endif
2305
2306         if (CardState == 0) CardState = 1;
2307
2308         pc0 = ra;
2309 }
2310
2311 void psxBios_StopCARD() { // 4c
2312 #ifdef PSXBIOS_LOG
2313         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2314 #endif
2315
2316         if (CardState == 1) CardState = 0;
2317
2318         pc0 = ra;
2319 }
2320
2321 void psxBios__card_write() { // 0x4e
2322         void *pa2 = Ra2;
2323         int port;
2324
2325 #ifdef PSXBIOS_LOG
2326         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2327 #endif
2328         /* Function also accepts sector 400h (a bug) */
2329         if (!(a1 <= 0x400))
2330         {
2331                 /* Invalid sectors */
2332                 v0 = 0; pc0 = ra;
2333                 return;
2334         }
2335         card_active_chan = a0;
2336         port = a0 >> 4;
2337
2338         if (pa2) {
2339                 if (port == 0) {
2340                         memcpy(Mcd1Data + a1 * 128, pa2, 128);
2341                         SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2342                 } else {
2343                         memcpy(Mcd2Data + a1 * 128, pa2, 128);
2344                         SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2345                 }
2346         }
2347
2348         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2349 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2350
2351         v0 = 1; pc0 = ra;
2352 }
2353
2354 void psxBios__card_read() { // 0x4f
2355         void *pa2 = Ra2;
2356         int port;
2357
2358 #ifdef PSXBIOS_LOG
2359         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2360 #endif
2361         /* Function also accepts sector 400h (a bug) */
2362         if (!(a1 <= 0x400))
2363         {
2364                 /* Invalid sectors */
2365                 v0 = 0; pc0 = ra;
2366                 return;
2367         }
2368         card_active_chan = a0;
2369         port = a0 >> 4;
2370
2371         if (pa2) {
2372                 if (port == 0) {
2373                         memcpy(pa2, Mcd1Data + a1 * 128, 128);
2374                 } else {
2375                         memcpy(pa2, Mcd2Data + a1 * 128, 128);
2376                 }
2377         }
2378
2379         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2380 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2381
2382         v0 = 1; pc0 = ra;
2383 }
2384
2385 void psxBios__new_card() { // 0x50
2386 #ifdef PSXBIOS_LOG
2387         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2388 #endif
2389
2390         pc0 = ra;
2391 }
2392
2393 void psxBios_Krom2RawAdd() { // 0x51
2394         int i = 0;
2395
2396         const u32 table_8140[][2] = {
2397                 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2398                 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2399                 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2400                 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2401                 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2402                 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2403                 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2404                 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2405                 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2406                 {0xffff, 0}
2407         };
2408
2409         const u32 table_889f[][2] = {
2410                 {0x889f, 0x3d68},  {0x8900, 0x40ec},  {0x897f, 0x4fb0},  {0x8a00, 0x56f4},
2411                 {0x8a7f, 0x65b8},  {0x8b00, 0x6cfc},  {0x8b7f, 0x7bc0},  {0x8c00, 0x8304},
2412                 {0x8c7f, 0x91c8},  {0x8d00, 0x990c},  {0x8d7f, 0xa7d0},  {0x8e00, 0xaf14},
2413                 {0x8e7f, 0xbdd8},  {0x8f00, 0xc51c},  {0x8f7f, 0xd3e0},  {0x9000, 0xdb24},
2414                 {0x907f, 0xe9e8},  {0x9100, 0xf12c},  {0x917f, 0xfff0},  {0x9200, 0x10734},
2415                 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2416                 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2417                 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2418                 {0xffff, 0}
2419         };
2420
2421         if (a0 >= 0x8140 && a0 <= 0x84be) {
2422                 while (table_8140[i][0] <= a0) i++;
2423                 a0 -= table_8140[i - 1][0];
2424                 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2425         } else if (a0 >= 0x889f && a0 <= 0x9872) {
2426                 while (table_889f[i][0] <= a0) i++;
2427                 a0 -= table_889f[i - 1][0];
2428                 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2429         } else {
2430                 v0 = 0xffffffff;
2431         }
2432
2433         pc0 = ra;
2434 }
2435
2436 void psxBios_GetC0Table() { // 56
2437 #ifdef PSXBIOS_LOG
2438         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2439 #endif
2440
2441         v0 = 0x674; pc0 = ra;
2442 }
2443
2444 void psxBios_GetB0Table() { // 57
2445 #ifdef PSXBIOS_LOG
2446         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2447 #endif
2448
2449         v0 = 0x874; pc0 = ra;
2450 }
2451
2452 void psxBios__card_chan() { // 0x58
2453 #ifdef PSXBIOS_LOG
2454         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2455 #endif
2456
2457         v0 = card_active_chan;
2458         pc0 = ra;
2459 }
2460
2461 void psxBios_ChangeClearPad() { // 5b
2462 #ifdef PSXBIOS_LOG
2463         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2464 #endif
2465
2466         pc0 = ra;
2467 }
2468
2469 /* System calls C0 */
2470
2471 /*
2472  * int SysEnqIntRP(int index , long *queue);
2473  */
2474
2475 void psxBios_SysEnqIntRP() { // 02
2476 #ifdef PSXBIOS_LOG
2477         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2478 #endif
2479
2480         SysIntRP[a0] = a1;
2481
2482         v0 = 0; pc0 = ra;
2483 }
2484
2485 /*
2486  * int SysDeqIntRP(int index , long *queue);
2487  */
2488
2489 void psxBios_SysDeqIntRP() { // 03
2490 #ifdef PSXBIOS_LOG
2491         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2492 #endif
2493
2494         SysIntRP[a0] = 0;
2495
2496         v0 = 0; pc0 = ra;
2497 }
2498
2499 void psxBios_ChangeClearRCnt() { // 0a
2500         u32 *ptr;
2501
2502 #ifdef PSXBIOS_LOG
2503         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2504 #endif
2505
2506         ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2507         v0 = *ptr;
2508         *ptr = a1;
2509
2510 //      psxRegs.CP0.n.Status|= 0x404;
2511         pc0 = ra;
2512 }
2513
2514 void psxBios_dummy() {
2515 #ifdef PSXBIOS_LOG
2516         PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2517 #endif
2518         pc0 = ra;
2519 }
2520
2521 void (*biosA0[256])();
2522 void (*biosB0[256])();
2523 void (*biosC0[256])();
2524
2525 #include "sjisfont.h"
2526
2527 void psxBiosInit() {
2528         u32 base, size;
2529         u32 *ptr;
2530         int i;
2531         uLongf len;
2532
2533         for(i = 0; i < 256; i++) {
2534                 biosA0[i] = NULL;
2535                 biosB0[i] = NULL;
2536                 biosC0[i] = NULL;
2537         }
2538         biosA0[0x3e] = psxBios_puts;
2539         biosA0[0x3f] = psxBios_printf;
2540
2541         biosB0[0x3d] = psxBios_putchar;
2542         biosB0[0x3f] = psxBios_puts;
2543
2544         if (!Config.HLE) return;
2545
2546         for(i = 0; i < 256; i++) {
2547                 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2548                 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2549                 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2550         }
2551
2552         biosA0[0x00] = psxBios_open;
2553         biosA0[0x01] = psxBios_lseek;
2554         biosA0[0x02] = psxBios_read;
2555         biosA0[0x03] = psxBios_write;
2556         biosA0[0x04] = psxBios_close;
2557         //biosA0[0x05] = psxBios_ioctl;
2558         //biosA0[0x06] = psxBios_exit;
2559         //biosA0[0x07] = psxBios_sys_a0_07;
2560         biosA0[0x08] = psxBios_getc;
2561         biosA0[0x09] = psxBios_putc;
2562         biosA0[0x0a] = psxBios_todigit;
2563         //biosA0[0x0b] = psxBios_atof;
2564         //biosA0[0x0c] = psxBios_strtoul;
2565         //biosA0[0x0d] = psxBios_strtol;
2566         biosA0[0x0e] = psxBios_abs;
2567         biosA0[0x0f] = psxBios_labs;
2568         biosA0[0x10] = psxBios_atoi;
2569         biosA0[0x11] = psxBios_atol;
2570         //biosA0[0x12] = psxBios_atob;
2571         biosA0[0x13] = psxBios_setjmp;
2572         biosA0[0x14] = psxBios_longjmp;
2573         biosA0[0x15] = psxBios_strcat;
2574         biosA0[0x16] = psxBios_strncat;
2575         biosA0[0x17] = psxBios_strcmp;
2576         biosA0[0x18] = psxBios_strncmp;
2577         biosA0[0x19] = psxBios_strcpy;
2578         biosA0[0x1a] = psxBios_strncpy;
2579         biosA0[0x1b] = psxBios_strlen;
2580         biosA0[0x1c] = psxBios_index;
2581         biosA0[0x1d] = psxBios_rindex;
2582         biosA0[0x1e] = psxBios_strchr;
2583         biosA0[0x1f] = psxBios_strrchr;
2584         biosA0[0x20] = psxBios_strpbrk;
2585         biosA0[0x21] = psxBios_strspn;
2586         biosA0[0x22] = psxBios_strcspn;
2587         biosA0[0x23] = psxBios_strtok;
2588         biosA0[0x24] = psxBios_strstr;
2589         biosA0[0x25] = psxBios_toupper;
2590         biosA0[0x26] = psxBios_tolower;
2591         biosA0[0x27] = psxBios_bcopy;
2592         biosA0[0x28] = psxBios_bzero;
2593         biosA0[0x29] = psxBios_bcmp;
2594         biosA0[0x2a] = psxBios_memcpy;
2595         biosA0[0x2b] = psxBios_memset;
2596         biosA0[0x2c] = psxBios_memmove;
2597         biosA0[0x2d] = psxBios_memcmp;
2598         biosA0[0x2e] = psxBios_memchr;
2599         biosA0[0x2f] = psxBios_rand;
2600         biosA0[0x30] = psxBios_srand;
2601         biosA0[0x31] = psxBios_qsort;
2602         //biosA0[0x32] = psxBios_strtod;
2603         biosA0[0x33] = psxBios_malloc;
2604         biosA0[0x34] = psxBios_free;
2605         //biosA0[0x35] = psxBios_lsearch;
2606         //biosA0[0x36] = psxBios_bsearch;
2607         biosA0[0x37] = psxBios_calloc;
2608         biosA0[0x38] = psxBios_realloc;
2609         biosA0[0x39] = psxBios_InitHeap;
2610         //biosA0[0x3a] = psxBios__exit;
2611         biosA0[0x3b] = psxBios_getchar;
2612         biosA0[0x3c] = psxBios_putchar;
2613         //biosA0[0x3d] = psxBios_gets;
2614         //biosA0[0x40] = psxBios_sys_a0_40;
2615         //biosA0[0x41] = psxBios_LoadTest;
2616         biosA0[0x42] = psxBios_Load;
2617         biosA0[0x43] = psxBios_Exec;
2618         biosA0[0x44] = psxBios_FlushCache;
2619         //biosA0[0x45] = psxBios_InstallInterruptHandler;
2620         biosA0[0x46] = psxBios_GPU_dw;
2621         biosA0[0x47] = psxBios_mem2vram;
2622         biosA0[0x48] = psxBios_SendGPU;
2623         biosA0[0x49] = psxBios_GPU_cw;
2624         biosA0[0x4a] = psxBios_GPU_cwb;
2625         biosA0[0x4b] = psxBios_GPU_SendPackets;
2626         biosA0[0x4c] = psxBios_sys_a0_4c;
2627         biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2628         //biosA0[0x4e] = psxBios_GPU_sync;
2629         //biosA0[0x4f] = psxBios_sys_a0_4f;
2630         //biosA0[0x50] = psxBios_sys_a0_50;
2631         biosA0[0x51] = psxBios_LoadExec;
2632         //biosA0[0x52] = psxBios_GetSysSp;
2633         //biosA0[0x53] = psxBios_sys_a0_53;
2634         //biosA0[0x54] = psxBios__96_init_a54;
2635         //biosA0[0x55] = psxBios__bu_init_a55;
2636         //biosA0[0x56] = psxBios__96_remove_a56;
2637         //biosA0[0x57] = psxBios_sys_a0_57;
2638         //biosA0[0x58] = psxBios_sys_a0_58;
2639         //biosA0[0x59] = psxBios_sys_a0_59;
2640         //biosA0[0x5a] = psxBios_sys_a0_5a;
2641         //biosA0[0x5b] = psxBios_dev_tty_init;
2642         //biosA0[0x5c] = psxBios_dev_tty_open;
2643         //biosA0[0x5d] = psxBios_sys_a0_5d;
2644         //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2645         //biosA0[0x5f] = psxBios_dev_cd_open;
2646         //biosA0[0x60] = psxBios_dev_cd_read;
2647         //biosA0[0x61] = psxBios_dev_cd_close;
2648         //biosA0[0x62] = psxBios_dev_cd_firstfile;
2649         //biosA0[0x63] = psxBios_dev_cd_nextfile;
2650         //biosA0[0x64] = psxBios_dev_cd_chdir;
2651         //biosA0[0x65] = psxBios_dev_card_open;
2652         //biosA0[0x66] = psxBios_dev_card_read;
2653         //biosA0[0x67] = psxBios_dev_card_write;
2654         //biosA0[0x68] = psxBios_dev_card_close;
2655         //biosA0[0x69] = psxBios_dev_card_firstfile;
2656         //biosA0[0x6a] = psxBios_dev_card_nextfile;
2657         //biosA0[0x6b] = psxBios_dev_card_erase;
2658         //biosA0[0x6c] = psxBios_dev_card_undelete;
2659         //biosA0[0x6d] = psxBios_dev_card_format;
2660         //biosA0[0x6e] = psxBios_dev_card_rename;
2661         //biosA0[0x6f] = psxBios_dev_card_6f;
2662         biosA0[0x70] = psxBios__bu_init;
2663         biosA0[0x71] = psxBios__96_init;
2664         biosA0[0x72] = psxBios__96_remove;
2665         //biosA0[0x73] = psxBios_sys_a0_73;
2666         //biosA0[0x74] = psxBios_sys_a0_74;
2667         //biosA0[0x75] = psxBios_sys_a0_75;
2668         //biosA0[0x76] = psxBios_sys_a0_76;
2669         //biosA0[0x77] = psxBios_sys_a0_77;
2670         //biosA0[0x78] = psxBios__96_CdSeekL;
2671         //biosA0[0x79] = psxBios_sys_a0_79;
2672         //biosA0[0x7a] = psxBios_sys_a0_7a;
2673         //biosA0[0x7b] = psxBios_sys_a0_7b;
2674         //biosA0[0x7c] = psxBios__96_CdGetStatus;
2675         //biosA0[0x7d] = psxBios_sys_a0_7d;
2676         //biosA0[0x7e] = psxBios__96_CdRead;
2677         //biosA0[0x7f] = psxBios_sys_a0_7f;
2678         //biosA0[0x80] = psxBios_sys_a0_80;
2679         //biosA0[0x81] = psxBios_sys_a0_81;
2680         //biosA0[0x82] = psxBios_sys_a0_82;
2681         //biosA0[0x83] = psxBios_sys_a0_83;
2682         //biosA0[0x84] = psxBios_sys_a0_84;
2683         //biosA0[0x85] = psxBios__96_CdStop;
2684         //biosA0[0x86] = psxBios_sys_a0_86;
2685         //biosA0[0x87] = psxBios_sys_a0_87;
2686         //biosA0[0x88] = psxBios_sys_a0_88;
2687         //biosA0[0x89] = psxBios_sys_a0_89;
2688         //biosA0[0x8a] = psxBios_sys_a0_8a;
2689         //biosA0[0x8b] = psxBios_sys_a0_8b;
2690         //biosA0[0x8c] = psxBios_sys_a0_8c;
2691         //biosA0[0x8d] = psxBios_sys_a0_8d;
2692         //biosA0[0x8e] = psxBios_sys_a0_8e;
2693         //biosA0[0x8f] = psxBios_sys_a0_8f;
2694         //biosA0[0x90] = psxBios_sys_a0_90;
2695         //biosA0[0x91] = psxBios_sys_a0_91;
2696         //biosA0[0x92] = psxBios_sys_a0_92;
2697         //biosA0[0x93] = psxBios_sys_a0_93;
2698         //biosA0[0x94] = psxBios_sys_a0_94;
2699         //biosA0[0x95] = psxBios_sys_a0_95;
2700         //biosA0[0x96] = psxBios_AddCDROMDevice;
2701         //biosA0[0x97] = psxBios_AddMemCardDevide;
2702         //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2703         //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2704         //biosA0[0x9a] = psxBios_sys_a0_9a;
2705         //biosA0[0x9b] = psxBios_sys_a0_9b;
2706         //biosA0[0x9c] = psxBios_SetConf;
2707         //biosA0[0x9d] = psxBios_GetConf;
2708         //biosA0[0x9e] = psxBios_sys_a0_9e;
2709         biosA0[0x9f] = psxBios_SetMem;
2710         //biosA0[0xa0] = psxBios__boot;
2711         //biosA0[0xa1] = psxBios_SystemError;
2712         //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2713         //biosA0[0xa3] = psxBios_DequeueCdIntr;
2714         //biosA0[0xa4] = psxBios_sys_a0_a4;
2715         //biosA0[0xa5] = psxBios_ReadSector;
2716         //biosA0[0xa6] = psxBios_get_cd_status;
2717         //biosA0[0xa7] = psxBios_bufs_cb_0;
2718         //biosA0[0xa8] = psxBios_bufs_cb_1;
2719         //biosA0[0xa9] = psxBios_bufs_cb_2;
2720         //biosA0[0xaa] = psxBios_bufs_cb_3;
2721         biosA0[0xab] = psxBios__card_info;
2722         biosA0[0xac] = psxBios__card_load;
2723         //biosA0[0axd] = psxBios__card_auto;
2724         //biosA0[0xae] = psxBios_bufs_cd_4;
2725         //biosA0[0xaf] = psxBios_sys_a0_af;
2726         //biosA0[0xb0] = psxBios_sys_a0_b0;
2727         //biosA0[0xb1] = psxBios_sys_a0_b1;
2728         //biosA0[0xb2] = psxBios_do_a_long_jmp
2729         //biosA0[0xb3] = psxBios_sys_a0_b3;
2730         //biosA0[0xb4] = psxBios_sub_function;
2731 //*******************B0 CALLS****************************
2732         //biosB0[0x00] = psxBios_SysMalloc;
2733         //biosB0[0x01] = psxBios_sys_b0_01;
2734         biosB0[0x02] = psxBios_SetRCnt;
2735         biosB0[0x03] = psxBios_GetRCnt;
2736         biosB0[0x04] = psxBios_StartRCnt;
2737         biosB0[0x05] = psxBios_StopRCnt;
2738         biosB0[0x06] = psxBios_ResetRCnt;
2739         biosB0[0x07] = psxBios_DeliverEvent;
2740         biosB0[0x08] = psxBios_OpenEvent;
2741         biosB0[0x09] = psxBios_CloseEvent;
2742         biosB0[0x0a] = psxBios_WaitEvent;
2743         biosB0[0x0b] = psxBios_TestEvent;
2744         biosB0[0x0c] = psxBios_EnableEvent;
2745         biosB0[0x0d] = psxBios_DisableEvent;
2746         biosB0[0x0e] = psxBios_OpenTh;
2747         biosB0[0x0f] = psxBios_CloseTh;
2748         biosB0[0x10] = psxBios_ChangeTh;
2749         //biosB0[0x11] = psxBios_psxBios_b0_11;
2750         biosB0[0x12] = psxBios_InitPAD;
2751         biosB0[0x13] = psxBios_StartPAD;
2752         biosB0[0x14] = psxBios_StopPAD;
2753         biosB0[0x15] = psxBios_PAD_init;
2754         biosB0[0x16] = psxBios_PAD_dr;
2755         biosB0[0x17] = psxBios_ReturnFromException;
2756         biosB0[0x18] = psxBios_ResetEntryInt;
2757         biosB0[0x19] = psxBios_HookEntryInt;
2758         //biosB0[0x1a] = psxBios_sys_b0_1a;
2759         //biosB0[0x1b] = psxBios_sys_b0_1b;
2760         //biosB0[0x1c] = psxBios_sys_b0_1c;
2761         //biosB0[0x1d] = psxBios_sys_b0_1d;
2762         //biosB0[0x1e] = psxBios_sys_b0_1e;
2763         //biosB0[0x1f] = psxBios_sys_b0_1f;
2764         biosB0[0x20] = psxBios_UnDeliverEvent;
2765         //biosB0[0x21] = psxBios_sys_b0_21;
2766         //biosB0[0x22] = psxBios_sys_b0_22;
2767         //biosB0[0x23] = psxBios_sys_b0_23;
2768         //biosB0[0x24] = psxBios_sys_b0_24;
2769         //biosB0[0x25] = psxBios_sys_b0_25;
2770         //biosB0[0x26] = psxBios_sys_b0_26;
2771         //biosB0[0x27] = psxBios_sys_b0_27;
2772         //biosB0[0x28] = psxBios_sys_b0_28;
2773         //biosB0[0x29] = psxBios_sys_b0_29;
2774         //biosB0[0x2a] = psxBios_sys_b0_2a;
2775         //biosB0[0x2b] = psxBios_sys_b0_2b;
2776         //biosB0[0x2c] = psxBios_sys_b0_2c;
2777         //biosB0[0x2d] = psxBios_sys_b0_2d;
2778         //biosB0[0x2e] = psxBios_sys_b0_2e;
2779         //biosB0[0x2f] = psxBios_sys_b0_2f;
2780         //biosB0[0x30] = psxBios_sys_b0_30;
2781         //biosB0[0x31] = psxBios_sys_b0_31;
2782         biosB0[0x32] = psxBios_open;
2783         biosB0[0x33] = psxBios_lseek;
2784         biosB0[0x34] = psxBios_read;
2785         biosB0[0x35] = psxBios_write;
2786         biosB0[0x36] = psxBios_close;
2787         //biosB0[0x37] = psxBios_ioctl;
2788         //biosB0[0x38] = psxBios_exit;
2789         //biosB0[0x39] = psxBios_sys_b0_39;
2790         //biosB0[0x3a] = psxBios_getc;
2791         //biosB0[0x3b] = psxBios_putc;
2792         biosB0[0x3c] = psxBios_getchar;
2793         //biosB0[0x3e] = psxBios_gets;
2794         //biosB0[0x40] = psxBios_cd;
2795         biosB0[0x41] = psxBios_format;
2796         biosB0[0x42] = psxBios_firstfile;
2797         biosB0[0x43] = psxBios_nextfile;
2798         biosB0[0x44] = psxBios_rename;
2799         biosB0[0x45] = psxBios_delete;
2800         //biosB0[0x46] = psxBios_undelete;
2801         //biosB0[0x47] = psxBios_AddDevice;
2802         //biosB0[0x48] = psxBios_RemoteDevice;
2803         //biosB0[0x49] = psxBios_PrintInstalledDevices;
2804         biosB0[0x4a] = psxBios_InitCARD;
2805         biosB0[0x4b] = psxBios_StartCARD;
2806         biosB0[0x4c] = psxBios_StopCARD;
2807         //biosB0[0x4d] = psxBios_sys_b0_4d;
2808         biosB0[0x4e] = psxBios__card_write;
2809         biosB0[0x4f] = psxBios__card_read;
2810         biosB0[0x50] = psxBios__new_card;
2811         biosB0[0x51] = psxBios_Krom2RawAdd;
2812         //biosB0[0x52] = psxBios_sys_b0_52;
2813         //biosB0[0x53] = psxBios_sys_b0_53;
2814         //biosB0[0x54] = psxBios__get_errno;
2815         //biosB0[0x55] = psxBios__get_error;
2816         biosB0[0x56] = psxBios_GetC0Table;
2817         biosB0[0x57] = psxBios_GetB0Table;
2818         biosB0[0x58] = psxBios__card_chan;
2819         //biosB0[0x59] = psxBios_sys_b0_59;
2820         //biosB0[0x5a] = psxBios_sys_b0_5a;
2821         biosB0[0x5b] = psxBios_ChangeClearPad;
2822         //biosB0[0x5c] = psxBios__card_status;
2823         //biosB0[0x5d] = psxBios__card_wait;
2824 //*******************C0 CALLS****************************
2825         //biosC0[0x00] = psxBios_InitRCnt;
2826         //biosC0[0x01] = psxBios_InitException;
2827         biosC0[0x02] = psxBios_SysEnqIntRP;
2828         biosC0[0x03] = psxBios_SysDeqIntRP;
2829         //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2830         //biosC0[0x05] = psxBios_get_free_TCB_slot;
2831         //biosC0[0x06] = psxBios_ExceptionHandler;
2832         //biosC0[0x07] = psxBios_InstallExeptionHandler;
2833         //biosC0[0x08] = psxBios_SysInitMemory;
2834         //biosC0[0x09] = psxBios_SysInitKMem;
2835         biosC0[0x0a] = psxBios_ChangeClearRCnt;
2836         //biosC0[0x0b] = psxBios_SystemError;
2837         //biosC0[0x0c] = psxBios_InitDefInt;
2838         //biosC0[0x0d] = psxBios_sys_c0_0d;
2839         //biosC0[0x0e] = psxBios_sys_c0_0e;
2840         //biosC0[0x0f] = psxBios_sys_c0_0f;
2841         //biosC0[0x10] = psxBios_sys_c0_10;
2842         //biosC0[0x11] = psxBios_sys_c0_11;
2843         //biosC0[0x12] = psxBios_InstallDevices;
2844         //biosC0[0x13] = psxBios_FlushStfInOutPut;
2845         //biosC0[0x14] = psxBios_sys_c0_14;
2846         //biosC0[0x15] = psxBios__cdevinput;
2847         //biosC0[0x16] = psxBios__cdevscan;
2848         //biosC0[0x17] = psxBios__circgetc;
2849         //biosC0[0x18] = psxBios__circputc;
2850         //biosC0[0x19] = psxBios_ioabort;
2851         //biosC0[0x1a] = psxBios_sys_c0_1a
2852         //biosC0[0x1b] = psxBios_KernelRedirect;
2853         //biosC0[0x1c] = psxBios_PatchAOTable;
2854 //************** THE END ***************************************
2855 /**/
2856         base = 0x1000;
2857         size = sizeof(EvCB) * 32;
2858         Event = (void *)&psxR[base]; base += size * 6;
2859         memset(Event, 0, size * 6);
2860         HwEV = Event;
2861         EvEV = Event + 32;
2862         RcEV = Event + 32 * 2;
2863         UeEV = Event + 32 * 3;
2864         SwEV = Event + 32 * 4;
2865         ThEV = Event + 32 * 5;
2866
2867         ptr = (u32 *)&psxM[0x0874]; // b0 table
2868         ptr[0] = SWAPu32(0x4c54 - 0x884);
2869
2870         ptr = (u32 *)&psxM[0x0674]; // c0 table
2871         ptr[6] = SWAPu32(0xc80);
2872
2873         memset(SysIntRP, 0, sizeof(SysIntRP));
2874         memset(Thread, 0, sizeof(Thread));
2875         Thread[0].status = 2; // main thread
2876
2877         jmp_int = NULL;
2878         pad_buf = NULL;
2879         pad_buf1 = NULL;
2880         pad_buf2 = NULL;
2881         pad_buf1len = pad_buf2len = 0;
2882         heap_addr = NULL;
2883         heap_end = NULL;
2884         CardState = -1;
2885         CurThread = 0;
2886         memset(FDesc, 0, sizeof(FDesc));
2887
2888         psxMu32ref(0x0150) = SWAPu32(0x160);
2889         psxMu32ref(0x0154) = SWAPu32(0x320);
2890         psxMu32ref(0x0160) = SWAPu32(0x248);
2891         strcpy((char *)&psxM[0x248], "bu");
2892 /*      psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
2893         psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
2894         psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
2895         psxMu32ref(0x09e0) = SWAPu32(0x43d0);
2896         psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
2897 */
2898         // opcode HLE
2899         psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
2900         psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
2901         psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
2902         psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
2903         psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
2904         psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
2905         psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
2906         psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
2907         psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
2908         psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
2909
2910         // initial stack pointer for BIOS interrupt
2911         psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
2912
2913         // initial RNG seed
2914         psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
2915
2916         // fonts
2917         len = 0x80000 - 0x66000;
2918         uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
2919         len = 0x80000 - 0x69d68;
2920         uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
2921
2922         // memory size 2 MB
2923         psxHu32ref(0x1060) = SWAPu32(0x00000b88);
2924
2925         hleSoftCall = FALSE;
2926 }
2927
2928 void psxBiosShutdown() {
2929 }
2930
2931 #define psxBios_PADpoll(pad) { \
2932         PAD##pad##_startPoll(pad); \
2933         pad_buf##pad[0] = 0; \
2934         pad_buf##pad[1] = PAD##pad##_poll(0x42); \
2935         if (!(pad_buf##pad[1] & 0x0f)) { \
2936                 bufcount = 32; \
2937         } else { \
2938                 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
2939         } \
2940         PAD##pad##_poll(0); \
2941         i = 2; \
2942         while (bufcount--) { \
2943                 pad_buf##pad[i++] = PAD##pad##_poll(0); \
2944         } \
2945 }
2946
2947 void biosInterrupt() {
2948         int i, bufcount;
2949
2950 //      if (psxHu32(0x1070) & 0x1) { // Vsync
2951                 if (pad_buf != NULL) {
2952                         u32 *buf = (u32*)pad_buf;
2953
2954                         if (!Config.UseNet) {
2955                                 PAD1_startPoll(1);
2956                                 if (PAD1_poll(0x42) == 0x23) {
2957                                         PAD1_poll(0);
2958                                         *buf = PAD1_poll(0) << 8;
2959                                         *buf |= PAD1_poll(0);
2960                                         PAD1_poll(0);
2961                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
2962                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
2963                                 } else {
2964                                         PAD1_poll(0);
2965                                         *buf = PAD1_poll(0) << 8;
2966                                         *buf|= PAD1_poll(0);
2967                                 }
2968
2969                                 PAD2_startPoll(2);
2970                                 if (PAD2_poll(0x42) == 0x23) {
2971                                         PAD2_poll(0);
2972                                         *buf |= PAD2_poll(0) << 24;
2973                                         *buf |= PAD2_poll(0) << 16;
2974                                         PAD2_poll(0);
2975                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
2976                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
2977                                 } else {
2978                                         PAD2_poll(0);
2979                                         *buf |= PAD2_poll(0) << 24;
2980                                         *buf |= PAD2_poll(0) << 16;
2981                                 }
2982                         } else {
2983                                 u16 data;
2984
2985                                 PAD1_startPoll(1);
2986                                 PAD1_poll(0x42);
2987                                 PAD1_poll(0);
2988                                 data = PAD1_poll(0) << 8;
2989                                 data |= PAD1_poll(0);
2990
2991                                 if (NET_sendPadData(&data, 2) == -1)
2992                                         netError();
2993
2994                                 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
2995                                         netError();
2996                                 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
2997                                         netError();
2998                         }
2999                 }
3000                 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3001                         psxBios_PADpoll(1);
3002
3003                         if (NET_sendPadData(pad_buf1, i) == -1)
3004                                 netError();
3005
3006                         if (NET_recvPadData(pad_buf1, 1) == -1)
3007                                 netError();
3008                         if (NET_recvPadData(pad_buf2, 2) == -1)
3009                                 netError();
3010                 } else {
3011                         if (pad_buf1) {
3012                                 psxBios_PADpoll(1);
3013                         }
3014
3015                         if (pad_buf2) {
3016                                 psxBios_PADpoll(2);
3017                         }
3018                 }
3019
3020         if (psxHu32(0x1070) & 0x1) { // Vsync
3021                 if (RcEV[3][1].status == EvStACTIVE) {
3022                         softCall(RcEV[3][1].fhandler);
3023 //                      hwWrite32(0x1f801070, ~(1));
3024                 }
3025         }
3026
3027         if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3028                 int i;
3029
3030                 for (i = 0; i < 3; i++) {
3031                         if (psxHu32(0x1070) & (1 << (i + 4))) {
3032                                 if (RcEV[i][1].status == EvStACTIVE) {
3033                                         softCall(RcEV[i][1].fhandler);
3034                                 }
3035                                 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3036                         }
3037                 }
3038         }
3039 }
3040
3041 void psxBiosException() {
3042         int i;
3043
3044         switch (psxRegs.CP0.n.Cause & 0x3c) {
3045                 case 0x00: // Interrupt
3046 #ifdef PSXCPU_LOG
3047 //                      PSXCPU_LOG("interrupt\n");
3048 #endif
3049                         SaveRegs();
3050
3051                         sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3052
3053                         biosInterrupt();
3054
3055                         for (i = 0; i < 8; i++) {
3056                                 if (SysIntRP[i]) {
3057                                         u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3058
3059                                         s0 = queue[2];
3060                                         softCall(queue[1]);
3061                                 }
3062                         }
3063
3064                         if (jmp_int != NULL) {
3065                                 int i;
3066
3067                                 psxHwWrite32(0x1f801070, 0xffffffff);
3068
3069                                 ra = jmp_int[0];
3070                                 sp = jmp_int[1];
3071                                 fp = jmp_int[2];
3072                                 for (i = 0; i < 8; i++) // s0-s7
3073                                          psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3074                                 gp = jmp_int[11];
3075
3076                                 v0 = 1;
3077                                 pc0 = ra;
3078                                 return;
3079                         }
3080                         psxHwWrite16(0x1f801070, 0);
3081                         break;
3082
3083                 case 0x20: // Syscall
3084 #ifdef PSXCPU_LOG
3085                         PSXCPU_LOG("syscall exp %x\n", a0);
3086 #endif
3087                         switch (a0) {
3088                                 case 1: // EnterCritical - disable irq's
3089                                         /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3090                                         v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3091                                         psxRegs.CP0.n.Status &= ~0x404;
3092                                         break;
3093
3094                                 case 2: // ExitCritical - enable irq's
3095                                         psxRegs.CP0.n.Status |= 0x404;
3096                                         break;
3097                         }
3098                         pc0 = psxRegs.CP0.n.EPC + 4;
3099
3100                         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3101                                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3102                         return;
3103
3104                 default:
3105 #ifdef PSXCPU_LOG
3106                         PSXCPU_LOG("unknown bios exception!\n");
3107 #endif
3108                         break;
3109         }
3110
3111         pc0 = psxRegs.CP0.n.EPC;
3112         if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3113
3114         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3115                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3116 }
3117
3118 #define bfreeze(ptr, size) { \
3119         if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3120         if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3121         base += size; \
3122 }
3123
3124 #define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3125 #define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3126
3127 #define bfreezepsxMptr(ptr, type) { \
3128         if (Mode == 1) { \
3129                 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3130                 else psxRu32ref(base) = 0; \
3131         } else { \
3132                 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3133                 else (ptr) = NULL; \
3134         } \
3135         base += sizeof(u32); \
3136 }
3137
3138 void psxBiosFreeze(int Mode) {
3139         u32 base = 0x40000;
3140
3141         bfreezepsxMptr(jmp_int, u32);
3142         bfreezepsxMptr(pad_buf, int);
3143         bfreezepsxMptr(pad_buf1, char);
3144         bfreezepsxMptr(pad_buf2, char);
3145         bfreezepsxMptr(heap_addr, u32);
3146         bfreezel(&pad_buf1len);
3147         bfreezel(&pad_buf2len);
3148         bfreezes(regs);
3149         bfreezes(SysIntRP);
3150         bfreezel(&CardState);
3151         bfreezes(Thread);
3152         bfreezel(&CurThread);
3153         bfreezes(FDesc);
3154         bfreezel(&card_active_chan);
3155 }