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_size = 0;
 258 static u32 *heap_addr = NULL;
 259 static u32 *heap_end = NULL;
 260 static u32 SysIntRP[8];
 261 static int CardState = -1;
 262 static TCB Thread[8];
 263 static int CurThread = 0;
 264 static FileDesc FDesc[32];
 265 static u32 card_active_chan;
 266
 267 boolean hleSoftCall = FALSE;
 268
 269 static inline void softCall(u32 pc) {
 270         pc0 = pc;
 271         ra = 0x80001000;
 272
 273         hleSoftCall = TRUE;
 274
 275         while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
 276
 277         hleSoftCall = FALSE;
 278 }
 279
 280 static inline void softCall2(u32 pc) {
 281         u32 sra = ra;
 282         pc0 = pc;
 283         ra = 0x80001000;
 284
 285         hleSoftCall = TRUE;
 286
 287         while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
 288         ra = sra;
 289
 290         hleSoftCall = FALSE;
 291 }
 292
 293 static inline void DeliverEvent(u32 ev, u32 spec) {
 294         if (Event[ev][spec].status != EvStACTIVE) return;
 295
 296 //      Event[ev][spec].status = EvStALREADY;
 297         if (Event[ev][spec].mode == EvMdINTR) {
 298                 softCall2(Event[ev][spec].fhandler);
 299         } else Event[ev][spec].status = EvStALREADY;
 300 }
 301
 302 static inline void SaveRegs() {
 303         memcpy(regs, psxRegs.GPR.r, 32*4);
 304         regs[32] = psxRegs.GPR.n.lo;
 305         regs[33] = psxRegs.GPR.n.hi;
 306         regs[34] = psxRegs.pc;
 307 }
 308
 309 static inline void LoadRegs() {
 310         memcpy(psxRegs.GPR.r, regs, 32*4);
 311         psxRegs.GPR.n.lo = regs[32];
 312         psxRegs.GPR.n.hi = regs[33];
 313 }
 314
 315 /*                                           *
 316 //                                           *
 317 //                                           *
 318 //               System calls A0             */
 319
 320
 321 #define buread(Ra1, mcd, length) { \
 322         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); \
 323         ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
 324         memcpy(Ra1, ptr, length); \
 325         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
 326         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
 327         if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
 328         else v0 = length; \
 329         FDesc[1 + mcd].offset += v0; \
 330 }
 331
 332 #define buwrite(Ra1, mcd, length) { \
 333         u32 offset =  + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
 334         SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
 335         ptr = Mcd##mcd##Data + offset; \
 336         memcpy(ptr, Ra1, length); \
 337         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
 338         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
 339         FDesc[1 + mcd].offset += length; \
 340         if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
 341         else v0 = length; \
 342 }
 343
 344
 345 /* Internally redirects to "FileRead(fd,tempbuf,1)".*/
 346 /* For some strange reason, the returned character is sign-expanded; */
 347 /* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
 348 /* TODO FIX ME : Properly implement this behaviour */
 349 void psxBios_getc(void) // 0x03, 0x35
 350 {
 351         char *ptr;
 352         void *pa1 = Ra1;
 353 #ifdef PSXBIOS_LOG
 354         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
 355 #endif
 356         v0 = -1;
 357
 358         if (pa1) {
 359                 switch (a0) {
 360                         case 2: buread(pa1, 1, 1); break;
 361                         case 3: buread(pa1, 2, 1); break;
 362                 }
 363         }
 364
 365         pc0 = ra;
 366 }
 367
 368 /* Copy of psxBios_write, except size is 1. */
 369 void psxBios_putc(void) // 0x09, 0x3B
 370 {
 371         char *ptr;
 372         void *pa1 = Ra1;
 373 #ifdef PSXBIOS_LOG
 374         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
 375 #endif
 376         v0 = -1;
 377         if (!pa1) {
 378                 pc0 = ra;
 379                 return;
 380         }
 381
 382         if (a0 == 1) { // stdout
 383                 char *ptr = (char *)pa1;
 384
 385                 v0 = a2;
 386                 while (a2 > 0) {
 387                         printf("%c", *ptr++); a2--;
 388                 }
 389                 pc0 = ra; return;
 390         }
 391
 392         switch (a0) {
 393                 case 2: buwrite(pa1, 1, 1); break;
 394                 case 3: buwrite(pa1, 2, 1); break;
 395         }
 396
 397         pc0 = ra;
 398 }
 399
 400 void psxBios_todigit(void) // 0x0a
 401 {
 402         int c = a0;
 403 #ifdef PSXBIOS_LOG
 404         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
 405 #endif
 406         c &= 0xFF;
 407         if (c >= 0x30 && c < 0x3A) {
 408                 c -= 0x30;
 409         }
 410         else if (c > 0x60 && c < 0x7B) {
 411                 c -= 0x20;
 412         }
 413         else if (c > 0x40 && c < 0x5B) {
 414                 c = c - 0x41 + 10;
 415         }
 416         else if (c >= 0x80) {
 417                 c = -1;
 418         }
 419         else
 420         {
 421                 c = 0x0098967F;
 422         }
 423         v0 = c;
 424         pc0 = ra;
 425 }
 426
 427 void psxBios_abs() { // 0x0e
 428         if ((s32)a0 < 0) v0 = -(s32)a0;
 429         else v0 = a0;
 430         pc0 = ra;
 431 }
 432
 433 void psxBios_labs() { // 0x0f
 434         psxBios_abs();
 435 }
 436
 437 void psxBios_atoi() { // 0x10
 438         s32 n = 0, f = 0;
 439         char *p = (char *)Ra0;
 440
 441         for (;;p++) {
 442                 switch (*p) {
 443                         case ' ': case '\t': continue;
 444                         case '-': f++;
 445                         case '+': p++;
 446                 }
 447                 break;
 448         }
 449
 450         while (*p >= '0' && *p <= '9') {
 451                 n = n * 10 + *p++ - '0';
 452         }
 453
 454         v0 = (f ? -n : n);
 455         pc0 = ra;
 456 }
 457
 458 void psxBios_atol() { // 0x11
 459         psxBios_atoi();
 460 }
 461
 462 void psxBios_setjmp() { // 0x13
 463         u32 *jmp_buf = (u32 *)Ra0;
 464         int i;
 465
 466 #ifdef PSXBIOS_LOG
 467         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
 468 #endif
 469
 470         jmp_buf[0] = ra;
 471         jmp_buf[1] = sp;
 472         jmp_buf[2] = fp;
 473         for (i = 0; i < 8; i++) // s0-s7
 474                 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
 475         jmp_buf[11] = gp;
 476
 477         v0 = 0; pc0 = ra;
 478 }
 479
 480 void psxBios_longjmp() { // 0x14
 481         u32 *jmp_buf = (u32 *)Ra0;
 482         int i;
 483
 484 #ifdef PSXBIOS_LOG
 485         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
 486 #endif
 487
 488         ra = jmp_buf[0]; /* ra */
 489         sp = jmp_buf[1]; /* sp */
 490         fp = jmp_buf[2]; /* fp */
 491         for (i = 0; i < 8; i++) // s0-s7
 492                 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
 493         gp = jmp_buf[11]; /* gp */
 494
 495         v0 = a1; pc0 = ra;
 496 }
 497
 498 void psxBios_strcat() { // 0x15
 499         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 500
 501 #ifdef PSXBIOS_LOG
 502         PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
 503 #endif
 504         if (a0 == 0 || a1 == 0)
 505         {
 506                 v0 = 0;
 507                 pc0 = ra;
 508                 return;
 509         }
 510         while (*p1++);
 511         --p1;
 512         while ((*p1++ = *p2++) != '\0');
 513
 514         v0 = a0; pc0 = ra;
 515 }
 516
 517 void psxBios_strncat() { // 0x16
 518         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 519         s32 n = a2;
 520
 521 #ifdef PSXBIOS_LOG
 522         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
 523 #endif
 524         if (a0 == 0 || a1 == 0)
 525         {
 526                 v0 = 0;
 527                 pc0 = ra;
 528                 return;
 529         }
 530         while (*p1++);
 531         --p1;
 532         while ((*p1++ = *p2++) != '\0') {
 533                 if (--n < 0) {
 534                         *--p1 = '\0';
 535                         break;
 536                 }
 537         }
 538
 539         v0 = a0; pc0 = ra;
 540 }
 541
 542 void psxBios_strcmp() { // 0x17
 543         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 544         s32 n=0;
 545         if (a0 == 0 && a1 == 0)
 546         {
 547                 v0 = 0;
 548                 pc0 = ra;
 549                 return;
 550         }
 551         else if (a0 == 0 && a1 != 0)
 552         {
 553                 v0 = -1;
 554                 pc0 = ra;
 555                 return;
 556         }
 557         else if (a0 != 0 && a1 == 0)
 558         {
 559                 v0 = 1;
 560                 pc0 = ra;
 561                 return;
 562         }
 563 #ifdef PSXBIOS_LOG
 564         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
 565 #endif
 566
 567         while (*p1 == *p2++) {
 568                 n++;
 569                 if (*p1++ == '\0') {
 570                         v1=n-1;
 571                         a0+=n;
 572                         a1+=n;
 573                         v0 = 0;
 574                         pc0 = ra;
 575                         return;
 576                 }
 577         }
 578
 579         v0 = (*p1 - *--p2);
 580         v1 = n;
 581         a0+=n;
 582         a1+=n;
 583         pc0 = ra;
 584 }
 585
 586 void psxBios_strncmp() { // 0x18
 587         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 588         s32 n = a2;
 589         if (a0 == 0 && a1 == 0)
 590         {
 591                 v0 = 0;
 592                 pc0 = ra;
 593                 return;
 594         }
 595         else if (a0 == 0 && a1 != 0)
 596         {
 597                 v0 = -1;
 598                 pc0 = ra;
 599                 return;
 600         }
 601         else if (a0 != 0 && a1 == 0)
 602         {
 603                 v0 = 1;
 604                 pc0 = ra;
 605                 return;
 606         }
 607 #ifdef PSXBIOS_LOG
 608         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
 609 #endif
 610
 611         while (--n >= 0 && *p1 == *p2++) {
 612                 if (*p1++ == '\0') {
 613                         v0 = 0;
 614                         pc0 = ra;
 615                         v1 = a2 - ((a2-n) - 1);
 616                         a0 += (a2-n) - 1;
 617                         a1 += (a2-n) - 1;
 618                         a2 = n;
 619                         return;
 620                 }
 621         }
 622
 623         v0 = (n < 0 ? 0 : *p1 - *--p2);
 624         pc0 = ra;
 625         v1 = a2 - ((a2-n) - 1);
 626         a0 += (a2-n) - 1;
 627         a1 += (a2-n) - 1;
 628         a2 = n;
 629 }
 630
 631 void psxBios_strcpy() { // 0x19
 632         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 633         if (a0 == 0 || a1 == 0)
 634         {
 635                 v0 = 0;
 636                 pc0 = ra;
 637                 return;
 638         }
 639         while ((*p1++ = *p2++) != '\0');
 640
 641         v0 = a0; pc0 = ra;
 642 }
 643
 644 void psxBios_strncpy() { // 0x1a
 645         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 646         s32 n = a2, i;
 647         if (a0 == 0 || a1 == 0)
 648         {
 649                 v0 = 0;
 650                 pc0 = ra;
 651                 return;
 652         }
 653         for (i = 0; i < n; i++) {
 654                 if ((*p1++ = *p2++) == '\0') {
 655                         while (++i < n) {
 656                                 *p1++ = '\0';
 657                         }
 658                         v0 = a0; pc0 = ra;
 659                         return;
 660                 }
 661         }
 662
 663         v0 = a0; pc0 = ra;
 664 }
 665
 666 void psxBios_strlen() { // 0x1b
 667         char *p = (char *)Ra0;
 668         v0 = 0;
 669         while (*p++) v0++;
 670         pc0 = ra;
 671 }
 672
 673 void psxBios_index() { // 0x1c
 674         char *p = (char *)Ra0;
 675         if (a0 == 0)
 676         {
 677                 v0 = 0;
 678                 pc0 = ra;
 679                 return;
 680         }
 681
 682         do {
 683                 if (*p == a1) {
 684                         v0 = a0 + (p - (char *)Ra0);
 685                         pc0 = ra;
 686                         return;
 687                 }
 688         } while (*p++ != '\0');
 689
 690         v0 = 0; pc0 = ra;
 691 }
 692
 693 void psxBios_rindex() { // 0x1d
 694         char *p = (char *)Ra0;
 695
 696         v0 = 0;
 697         if (a0 == 0)
 698         {
 699                 pc0 = ra;
 700                 return;
 701         }
 702         do {
 703                 if (*p == a1)
 704                         v0 = a0 + (p - (char *)Ra0);
 705         } while (*p++ != '\0');
 706
 707         pc0 = ra;
 708 }
 709
 710 void psxBios_strchr() { // 0x1e
 711         psxBios_index();
 712 }
 713
 714 void psxBios_strrchr() { // 0x1f
 715         psxBios_rindex();
 716 }
 717
 718 void psxBios_strpbrk() { // 0x20
 719         char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
 720
 721         while ((c = *p1++) != '\0') {
 722                 for (scanp = p2; (sc = *scanp++) != '\0';) {
 723                         if (sc == c) {
 724                                 v0 = a0 + (p1 - 1 - (char *)Ra0);
 725                                 pc0 = ra;
 726                                 return;
 727                         }
 728                 }
 729         }
 730
 731         // BUG: return a0 instead of NULL if not found
 732         v0 = a0; pc0 = ra;
 733 }
 734
 735 void psxBios_strspn() { // 0x21
 736         char *p1, *p2;
 737
 738         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 739                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 740                 if (*p2 == '\0') break;
 741         }
 742
 743         v0 = p1 - (char *)Ra0; pc0 = ra;
 744 }
 745
 746 void psxBios_strcspn() { // 0x22
 747         char *p1, *p2;
 748
 749         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 750                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 751                 if (*p2 != '\0') break;
 752         }
 753
 754         v0 = p1 - (char *)Ra0; pc0 = ra;
 755 }
 756
 757 void psxBios_strtok() { // 0x23
 758         char *pcA0 = (char *)Ra0;
 759         char *pcRet = strtok(pcA0, (char *)Ra1);
 760         if (pcRet)
 761                 v0 = a0 + pcRet - pcA0;
 762         else
 763                 v0 = 0;
 764         pc0 = ra;
 765 }
 766
 767 void psxBios_strstr() { // 0x24
 768         char *p = (char *)Ra0, *p1, *p2;
 769
 770         while (*p != '\0') {
 771                 p1 = p;
 772                 p2 = (char *)Ra1;
 773
 774                 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
 775                         p1++; p2++;
 776                 }
 777
 778                 if (*p2 == '\0') {
 779                         v0 = a0 + (p - (char *)Ra0);
 780                         pc0 = ra;
 781                         return;
 782                 }
 783
 784                 p++;
 785         }
 786
 787         v0 = 0; pc0 = ra;
 788 }
 789
 790 void psxBios_toupper() { // 0x25
 791         v0 = (s8)(a0 & 0xff);
 792         if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
 793         pc0 = ra;
 794 }
 795
 796 void psxBios_tolower() { // 0x26
 797         v0 = (s8)(a0 & 0xff);
 798         if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
 799         pc0 = ra;
 800 }
 801
 802 void psxBios_bcopy() { // 0x27
 803         char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
 804         v0 = a0;
 805         if (a0 == 0 || a2 > 0x7FFFFFFF)
 806         {
 807                 pc0 = ra;
 808                 return;
 809         }
 810         while ((s32)a2-- > 0) *p1++ = *p2++;
 811         a2 = 0;
 812         pc0 = ra;
 813 }
 814
 815 void psxBios_bzero() { // 0x28
 816         char *p = (char *)Ra0;
 817         v0 = a0;
 818         /* Same as memset here (See memset below) */
 819         if (a1 > 0x7FFFFFFF || a1 == 0)
 820         {
 821                 v0 = 0;
 822                 pc0 = ra;
 823                 return;
 824         }
 825         else if (a0 == 0)
 826         {
 827                 pc0 = ra;
 828                 return;
 829         }
 830         while ((s32)a1-- > 0) *p++ = '\0';
 831         a1 = 0;
 832         pc0 = ra;
 833 }
 834
 835 void psxBios_bcmp() { // 0x29
 836         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 837
 838         if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
 839
 840         while ((s32)a2-- > 0) {
 841                 if (*p1++ != *p2++) {
 842                         v0 = *p1 - *p2; // BUG: compare the NEXT byte
 843                         pc0 = ra;
 844                         return;
 845                 }
 846         }
 847
 848         v0 = 0; pc0 = ra;
 849 }
 850
 851 void psxBios_memcpy() { // 0x2a
 852         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 853         s32 n=0;
 854         v0 = a0;
 855         if (a0 == 0 || a2 > 0x7FFFFFFF)
 856         {
 857                 pc0 = ra;
 858                 return;
 859         }
 860         while ((s32)a2-- > 0) {
 861                 n++;
 862                 *p1++ = *p2++;
 863         }
 864         a2 = 0;
 865         pc0 = ra;
 866 }
 867
 868 void psxBios_memset() { // 0x2b
 869         char *p = (char *)Ra0;
 870         v0 = a0;
 871         if (a2 > 0x7FFFFFFF || a2 == 0)
 872         {
 873                 v0 = 0;
 874                 pc0 = ra;
 875                 return;
 876         }
 877         if (a0 == 0)
 878         {
 879                 pc0 = ra;
 880                 return;
 881         }
 882         while ((s32)a2-- > 0) *p++ = (char)a1;
 883         a2 = 0;
 884         v0 = a0; pc0 = ra;
 885 }
 886
 887 void psxBios_memmove() { // 0x2c
 888         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 889         v0 = a0;
 890         if (a0 == 0 || a2 > 0x7FFFFFFF)
 891         {
 892                 pc0 = ra;
 893                 return;
 894         }
 895         if (p2 <= p1 && p2 + a2 > p1) {
 896                 a2++; // BUG: copy one more byte here
 897                 p1 += a2;
 898                 p2 += a2;
 899                 while ((s32)a2-- > 0) *--p1 = *--p2;
 900         } else {
 901                 while ((s32)a2-- > 0) *p1++ = *p2++;
 902         }
 903         pc0 = ra;
 904 }
 905
 906 void psxBios_memcmp() { // 0x2d
 907         psxBios_bcmp();
 908 }
 909
 910 void psxBios_memchr() { // 0x2e
 911         char *p = (char *)Ra0;
 912
 913         while ((s32)a2-- > 0) {
 914                 if (*p++ != (s8)a1) continue;
 915                 v0 = a0 + (p - (char *)Ra0 - 1);
 916                 pc0 = ra;
 917                 return;
 918         }
 919
 920         v0 = 0; pc0 = ra;
 921 }
 922
 923 void psxBios_rand() { // 0x2f
 924         u32 s = psxMu32(0x9010) * 1103515245 + 12345;
 925         v0 = (s >> 16) & 0x7fff;
 926         psxMu32ref(0x9010) = SWAPu32(s);
 927         pc0 = ra;
 928 }
 929
 930 void psxBios_srand() { // 0x30
 931         psxMu32ref(0x9010) = SWAPu32(a0);
 932         pc0 = ra;
 933 }
 934
 935 static u32 qscmpfunc, qswidth;
 936
 937 static inline int qscmp(char *a, char *b) {
 938         u32 sa0 = a0;
 939
 940         a0 = sa0 + (a - (char *)PSXM(sa0));
 941         a1 = sa0 + (b - (char *)PSXM(sa0));
 942
 943         softCall2(qscmpfunc);
 944
 945         a0 = sa0;
 946         return (s32)v0;
 947 }
 948
 949 static inline void qexchange(char *i, char *j) {
 950         char t;
 951         int n = qswidth;
 952
 953         do {
 954                 t = *i;
 955                 *i++ = *j;
 956                 *j++ = t;
 957         } while (--n);
 958 }
 959
 960 static inline void q3exchange(char *i, char *j, char *k) {
 961         char t;
 962         int n = qswidth;
 963
 964         do {
 965                 t = *i;
 966                 *i++ = *k;
 967                 *k++ = *j;
 968                 *j++ = t;
 969         } while (--n);
 970 }
 971
 972 static void qsort_main(char *a, char *l) {
 973         char *i, *j, *lp, *hp;
 974         int c;
 975         unsigned int n;
 976
 977 start:
 978         if ((n = l - a) <= qswidth)
 979                 return;
 980         n = qswidth * (n / (2 * qswidth));
 981         hp = lp = a + n;
 982         i = a;
 983         j = l - qswidth;
 984         while (TRUE) {
 985                 if (i < lp) {
 986                         if ((c = qscmp(i, lp)) == 0) {
 987                                 qexchange(i, lp -= qswidth);
 988                                 continue;
 989                         }
 990                         if (c < 0) {
 991                                 i += qswidth;
 992                                 continue;
 993                         }
 994                 }
 995
 996 loop:
 997                 if (j > hp) {
 998                         if ((c = qscmp(hp, j)) == 0) {
 999                                 qexchange(hp += qswidth, j);
1000                                 goto loop;
1001                         }
1002                         if (c > 0) {
1003                                 if (i == lp) {
1004                                         q3exchange(i, hp += qswidth, j);
1005                                         i = lp += qswidth;
1006                                         goto loop;
1007                                 }
1008                                 qexchange(i, j);
1009                                 j -= qswidth;
1010                                 i += qswidth;
1011                                 continue;
1012                         }
1013                         j -= qswidth;
1014                         goto loop;
1015                 }
1016
1017                 if (i == lp) {
1018                         if (lp - a >= l - hp) {
1019                                 qsort_main(hp + qswidth, l);
1020                                 l = lp;
1021                         } else {
1022                                 qsort_main(a, lp);
1023                                 a = hp + qswidth;
1024                         }
1025                         goto start;
1026                 }
1027
1028                 q3exchange(j, lp -= qswidth, i);
1029                 j = hp -= qswidth;
1030         }
1031 }
1032
1033 void psxBios_qsort() { // 0x31
1034         qswidth = a2;
1035         qscmpfunc = a3;
1036         qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
1037
1038         pc0 = ra;
1039 }
1040
1041 void psxBios_malloc() { // 0x33
1042         unsigned int *chunk, *newchunk = NULL;
1043         unsigned int dsize = 0, csize, cstat;
1044         int colflag;
1045 #ifdef PSXBIOS_LOG
1046         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
1047 #endif
1048         if (!a0 || (!heap_size || !heap_addr)) {
1049                 v0 = 0;
1050                 pc0 = ra;
1051                 return;
1052         }
1053
1054         // scan through heap and combine free chunks of space
1055         chunk = heap_addr;
1056         colflag = 0;
1057         while(chunk < heap_end) {
1058                 // get size and status of actual chunk
1059                 csize = ((u32)*chunk) & 0xfffffffc;
1060                 cstat = ((u32)*chunk) & 1;
1061
1062                 // most probably broken heap descriptor
1063                 // this fixes Burning Road
1064                 if (*chunk == 0) {
1065                         newchunk = chunk;
1066                         dsize = ((uptr)heap_end - (uptr)chunk) - 4;
1067                         colflag = 1;
1068                         break;
1069                 }
1070
1071                 // it's a free chunk
1072                 if(cstat == 1) {
1073                         if(colflag == 0) {
1074                                 newchunk = chunk;
1075                                 dsize = csize;
1076                                 colflag = 1;                    // let's begin a new collection of free memory
1077                         }
1078                         else dsize += (csize+4);        // add the new size including header
1079                 }
1080                 // not a free chunk: did we start a collection ?
1081                 else {
1082                         if(colflag == 1) {                      // collection is over
1083                                 colflag = 0;
1084                                 *newchunk = SWAP32(dsize | 1);
1085                         }
1086                 }
1087
1088                 // next chunk
1089                 chunk = (u32*)((uptr)chunk + csize + 4);
1090         }
1091         // if neccessary free memory on end of heap
1092         if (colflag == 1)
1093                 *newchunk = SWAP32(dsize | 1);
1094
1095         chunk = heap_addr;
1096         csize = ((u32)*chunk) & 0xfffffffc;
1097         cstat = ((u32)*chunk) & 1;
1098         dsize = (a0 + 3) & 0xfffffffc;
1099
1100         // exit on uninitialized heap
1101         if (chunk == NULL) {
1102                 printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
1103                 v0 = 0;
1104                 pc0 = ra;
1105                 return;
1106         }
1107
1108         // search an unused chunk that is big enough until the end of the heap
1109         while ((dsize > csize || cstat==0) && chunk < heap_end ) {
1110                 chunk = (u32*)((uptr)chunk + csize + 4);
1111
1112                         // catch out of memory
1113                         if(chunk >= heap_end) {
1114                                 printf("malloc %x,%x: Out of memory error!\n",
1115                                         v0, a0);
1116                                 v0 = 0; pc0 = ra;
1117                                 return;
1118                         }
1119
1120                 csize = ((u32)*chunk) & 0xfffffffc;
1121                 cstat = ((u32)*chunk) & 1;
1122         }
1123
1124         // allocate memory
1125         if(dsize == csize) {
1126                 // chunk has same size
1127                 *chunk &= 0xfffffffc;
1128         } else if (dsize > csize) {
1129                 v0 = 0; pc0 = ra;
1130                 return;
1131         } else {
1132                 // split free chunk
1133                 *chunk = SWAP32(dsize);
1134                 newchunk = (u32*)((uptr)chunk + dsize + 4);
1135                 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
1136         }
1137
1138         // return pointer to allocated memory
1139         v0 = ((uptr)chunk - (uptr)psxM) + 4;
1140         v0|= 0x80000000;
1141         //printf ("malloc %x,%x\n", v0, a0);
1142         pc0 = ra;
1143 }
1144
1145 void psxBios_free() { // 0x34
1146
1147 #ifdef PSXBIOS_LOG
1148         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1149 #endif
1150
1151         SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1152
1153         if (a0)
1154                 *(u32*)(Ra0-4) |= 1;    // set chunk to free
1155         pc0 = ra;
1156 }
1157
1158 void psxBios_calloc() { // 0x37
1159         void *pv0;
1160 #ifdef PSXBIOS_LOG
1161         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1162 #endif
1163
1164         a0 = a0 * a1;
1165         psxBios_malloc();
1166         pv0 = Rv0;
1167         if (pv0)
1168                 memset(pv0, 0, a0);
1169 }
1170
1171 void psxBios_realloc() { // 0x38
1172         u32 block = a0;
1173         u32 size = a1;
1174 #ifdef PSXBIOS_LOG
1175         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1176 #endif
1177
1178         a0 = block;
1179         /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1180         if (block == 0)
1181         {
1182                 psxBios_malloc();
1183         }
1184         /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1185         else if (size == 0)
1186         {
1187                 psxBios_free();
1188         }
1189         /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1190         /* Note that it is not quite implemented this way here. */
1191         else
1192         {
1193                 psxBios_free();
1194                 a0 = size;
1195                 psxBios_malloc();
1196         }
1197 }
1198
1199
1200 /* InitHeap(void *block , int n) */
1201 void psxBios_InitHeap() { // 0x39
1202         unsigned int size;
1203
1204 #ifdef PSXBIOS_LOG
1205         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1206 #endif
1207
1208         if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1209         else size = a1;
1210
1211         size &= 0xfffffffc;
1212
1213         heap_addr = (u32 *)Ra0;
1214         heap_end = (u32 *)((u8 *)heap_addr + size);
1215         *heap_addr = SWAP32(size | 1);
1216
1217         SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
1218
1219         pc0 = ra;
1220 }
1221
1222 void psxBios_getchar() { //0x3b
1223         v0 = getchar(); pc0 = ra;
1224 }
1225
1226 void psxBios_printf() { // 0x3f
1227         char tmp[1024];
1228         char tmp2[1024];
1229         u32 save[4];
1230         char *ptmp = tmp;
1231         int n=1, i=0, j;
1232         void *psp;
1233
1234         psp = PSXM(sp);
1235         if (psp) {
1236                 memcpy(save, psp, 4 * 4);
1237                 psxMu32ref(sp) = SWAP32((u32)a0);
1238                 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1239                 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1240                 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1241         }
1242
1243         while (Ra0[i]) {
1244                 switch (Ra0[i]) {
1245                         case '%':
1246                                 j = 0;
1247                                 tmp2[j++] = '%';
1248 _start:
1249                                 switch (Ra0[++i]) {
1250                                         case '.':
1251                                         case 'l':
1252                                                 tmp2[j++] = Ra0[i]; goto _start;
1253                                         default:
1254                                                 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1255                                                         tmp2[j++] = Ra0[i];
1256                                                         goto _start;
1257                                                 }
1258                                                 break;
1259                                 }
1260                                 tmp2[j++] = Ra0[i];
1261                                 tmp2[j] = 0;
1262
1263                                 switch (Ra0[i]) {
1264                                         case 'f': case 'F':
1265                                                 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1266                                         case 'a': case 'A':
1267                                         case 'e': case 'E':
1268                                         case 'g': case 'G':
1269                                                 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1270                                         case 'p':
1271                                         case 'i': case 'u':
1272                                         case 'd': case 'D':
1273                                         case 'o': case 'O':
1274                                         case 'x': case 'X':
1275                                                 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1276                                         case 'c':
1277                                                 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1278                                         case 's':
1279                                                 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1280                                         case '%':
1281                                                 *ptmp++ = Ra0[i]; break;
1282                                 }
1283                                 i++;
1284                                 break;
1285                         default:
1286                                 *ptmp++ = Ra0[i++];
1287                 }
1288         }
1289         *ptmp = 0;
1290
1291         if (psp)
1292                 memcpy(psp, save, 4 * 4);
1293
1294         SysPrintf("%s", tmp);
1295
1296         pc0 = ra;
1297 }
1298
1299 void psxBios_format() { // 0x41
1300         if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1301         {
1302                 CreateMcd(Config.Mcd1);
1303                 LoadMcd(1, Config.Mcd1);
1304                 v0 = 1;
1305         }
1306         else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1307         {
1308                 CreateMcd(Config.Mcd2);
1309                 LoadMcd(2, Config.Mcd2);
1310                 v0 = 1;
1311         }
1312         else
1313         {
1314                 v0 = 0;
1315         }
1316         pc0 = ra;
1317 }
1318
1319 /*
1320  *      long Load(char *name, struct EXEC *header);
1321  */
1322
1323 void psxBios_Load() { // 0x42
1324         EXE_HEADER eheader;
1325         void *pa1;
1326
1327 #ifdef PSXBIOS_LOG
1328         PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1329 #endif
1330
1331         pa1 = Ra1;
1332         if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1333                 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
1334                 v0 = 1;
1335         } else v0 = 0;
1336
1337         pc0 = ra;
1338 }
1339
1340 /*
1341  *      int Exec(struct EXEC *header , int argc , char **argv);
1342  */
1343
1344 void psxBios_Exec() { // 43
1345         EXEC *header = (EXEC*)Ra0;
1346         u32 tmp;
1347
1348 #ifdef PSXBIOS_LOG
1349         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1350 #endif
1351
1352         header->_sp = sp;
1353         header->_fp = fp;
1354         header->_sp = sp;
1355         header->_gp = gp;
1356         header->ret = ra;
1357         header->base = s0;
1358
1359         if (header->S_addr != 0) {
1360                 tmp = header->S_addr + header->s_size;
1361                 sp = tmp;
1362                 fp = sp;
1363         }
1364
1365         gp = header->gp0;
1366
1367         s0 = a0;
1368
1369         a0 = a1;
1370         a1 = a2;
1371
1372         ra = 0x8000;
1373         pc0 = header->_pc0;
1374 }
1375
1376 void psxBios_FlushCache() { // 44
1377 #ifdef PSXBIOS_LOG
1378         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1379 #endif
1380
1381         pc0 = ra;
1382 }
1383
1384 void psxBios_GPU_dw() { // 0x46
1385         int size;
1386         s32 *ptr;
1387
1388 #ifdef PSXBIOS_LOG
1389         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1390 #endif
1391
1392         GPU_writeData(0xa0000000);
1393         GPU_writeData((a1<<16)|(a0&0xffff));
1394         GPU_writeData((a3<<16)|(a2&0xffff));
1395         size = (a2*a3+1)/2;
1396         ptr = (s32*)PSXM(Rsp[4]);  //that is correct?
1397         do {
1398                 GPU_writeData(SWAP32(*ptr));
1399                 ptr++;
1400         } while(--size);
1401
1402         pc0 = ra;
1403 }
1404
1405 void psxBios_mem2vram() { // 0x47
1406         int size;
1407
1408         GPU_writeData(0xa0000000);
1409         GPU_writeData((a1<<16)|(a0&0xffff));
1410         GPU_writeData((a3<<16)|(a2&0xffff));
1411         size = (a2*a3+1)/2;
1412         GPU_writeStatus(0x04000002);
1413         psxHwWrite32(0x1f8010f4,0);
1414         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1415         psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1416         psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1417         psxHwWrite32(0x1f8010a8,0x01000201);
1418
1419         pc0 = ra;
1420 }
1421
1422 void psxBios_SendGPU() { // 0x48
1423         GPU_writeStatus(a0);
1424         gpuSyncPluginSR();
1425         pc0 = ra;
1426 }
1427
1428 void psxBios_GPU_cw() { // 0x49
1429         GPU_writeData(a0);
1430         pc0 = ra;
1431 }
1432
1433 void psxBios_GPU_cwb() { // 0x4a
1434         s32 *ptr = (s32*)Ra0;
1435         int size = a1;
1436         while(size--) {
1437                 GPU_writeData(SWAP32(*ptr));
1438                 ptr++;
1439         }
1440
1441         pc0 = ra;
1442 }
1443
1444 void psxBios_GPU_SendPackets() { //4b:
1445         GPU_writeStatus(0x04000002);
1446         psxHwWrite32(0x1f8010f4,0);
1447         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1448         psxHwWrite32(0x1f8010a0,a0);
1449         psxHwWrite32(0x1f8010a4,0);
1450         psxHwWrite32(0x1f8010a8,0x010000401);
1451         pc0 = ra;
1452 }
1453
1454 void psxBios_sys_a0_4c() { // 0x4c GPU relate
1455         psxHwWrite32(0x1f8010a8,0x00000401);
1456         GPU_writeData(0x0400000);
1457         GPU_writeData(0x0200000);
1458         GPU_writeData(0x0100000);
1459         v0 = 0x1f801814;
1460         pc0 = ra;
1461 }
1462
1463 void psxBios_GPU_GetGPUStatus() { // 0x4d
1464         v0 = GPU_readStatus();
1465         pc0 = ra;
1466 }
1467
1468 #undef s_addr
1469
1470 void psxBios_LoadExec() { // 51
1471         EXEC *header = (EXEC*)PSXM(0xf000);
1472         u32 s_addr, s_size;
1473
1474 #ifdef PSXBIOS_LOG
1475         PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1476 #endif
1477         s_addr = a1; s_size = a2;
1478
1479         a1 = 0xf000;
1480         psxBios_Load();
1481
1482         header->S_addr = s_addr;
1483         header->s_size = s_size;
1484
1485         a0 = 0xf000; a1 = 0; a2 = 0;
1486         psxBios_Exec();
1487 }
1488
1489 void psxBios__bu_init() { // 70
1490 #ifdef PSXBIOS_LOG
1491         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1492 #endif
1493
1494         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1495         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1496
1497         pc0 = ra;
1498 }
1499
1500 void psxBios__96_init() { // 71
1501 #ifdef PSXBIOS_LOG
1502         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1503 #endif
1504
1505         pc0 = ra;
1506 }
1507
1508 void psxBios__96_remove() { // 72
1509 #ifdef PSXBIOS_LOG
1510         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1511 #endif
1512
1513         pc0 = ra;
1514 }
1515
1516 void psxBios_SetMem() { // 9f
1517         u32 new = psxHu32(0x1060);
1518
1519 #ifdef PSXBIOS_LOG
1520         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1521 #endif
1522
1523         switch(a0) {
1524                 case 2:
1525                         psxHu32ref(0x1060) = SWAP32(new);
1526                         psxMu32ref(0x060) = a0;
1527                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1528                         break;
1529
1530                 case 8:
1531                         psxHu32ref(0x1060) = SWAP32(new | 0x300);
1532                         psxMu32ref(0x060) = a0;
1533                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1534
1535                 default:
1536                         SysPrintf("Effective memory must be 2/8 MBytes\n");
1537                 break;
1538         }
1539
1540         pc0 = ra;
1541 }
1542
1543 void psxBios__card_info() { // ab
1544 #ifdef PSXBIOS_LOG
1545         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1546 #endif
1547         u32 ret;
1548         card_active_chan = a0;
1549
1550         switch (card_active_chan)
1551         {
1552         case 0x00: case 0x01: case 0x02: case 0x03:
1553                 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1554                 break;
1555         case 0x10: case 0x11: case 0x12: case 0x13:
1556                 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1557                 break;
1558         default:
1559 #ifdef PSXBIOS_LOG
1560                 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1561 #endif
1562                 ret = 0x11;
1563                 break;
1564         }
1565
1566 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1567 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1568         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1569         DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
1570
1571         v0 = 1; pc0 = ra;
1572 }
1573
1574 void psxBios__card_load() { // ac
1575 #ifdef PSXBIOS_LOG
1576         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1577 #endif
1578
1579         card_active_chan = a0;
1580
1581 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1582         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1583
1584         v0 = 1; pc0 = ra;
1585 }
1586
1587 /* System calls B0 */
1588
1589 void psxBios_SetRCnt() { // 02
1590 #ifdef PSXBIOS_LOG
1591         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1592 #endif
1593
1594         a0&= 0x3;
1595         if (a0 != 3) {
1596                 u32 mode=0;
1597
1598                 psxRcntWtarget(a0, a1);
1599                 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1600                 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1601                 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1602                 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1603                 else         { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1604
1605                 psxRcntWmode(a0, mode);
1606         }
1607         pc0 = ra;
1608 }
1609
1610 void psxBios_GetRCnt() { // 03
1611 #ifdef PSXBIOS_LOG
1612         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1613 #endif
1614
1615         a0&= 0x3;
1616         if (a0 != 3) v0 = psxRcntRcount(a0);
1617         else v0 = 0;
1618         pc0 = ra;
1619 }
1620
1621 void psxBios_StartRCnt() { // 04
1622 #ifdef PSXBIOS_LOG
1623         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1624 #endif
1625
1626         a0&= 0x3;
1627         if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1628         else psxHu32ref(0x1074)|= SWAPu32(0x1);
1629         v0 = 1; pc0 = ra;
1630 }
1631
1632 void psxBios_StopRCnt() { // 05
1633 #ifdef PSXBIOS_LOG
1634         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1635 #endif
1636
1637         a0&= 0x3;
1638         if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1639         else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1640         pc0 = ra;
1641 }
1642
1643 void psxBios_ResetRCnt() { // 06
1644 #ifdef PSXBIOS_LOG
1645         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1646 #endif
1647
1648         a0&= 0x3;
1649         if (a0 != 3) {
1650                 psxRcntWmode(a0, 0);
1651                 psxRcntWtarget(a0, 0);
1652                 psxRcntWcount(a0, 0);
1653         }
1654         pc0 = ra;
1655 }
1656
1657
1658 /* gets ev for use with Event */
1659 #define GetEv() \
1660         ev = (a0 >> 24) & 0xf; \
1661         if (ev == 0xf) ev = 0x5; \
1662         ev*= 32; \
1663         ev+= a0&0x1f;
1664
1665 /* gets spec for use with Event */
1666 #define GetSpec() \
1667         spec = 0; \
1668         switch (a1) { \
1669                 case 0x0301: spec = 16; break; \
1670                 case 0x0302: spec = 17; break; \
1671                 default: \
1672                         for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1673                         break; \
1674         }
1675
1676 void psxBios_DeliverEvent() { // 07
1677         int ev, spec;
1678         int i;
1679
1680         GetEv();
1681         GetSpec();
1682
1683 #ifdef PSXBIOS_LOG
1684         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1685 #endif
1686
1687         DeliverEvent(ev, spec);
1688
1689         pc0 = ra;
1690 }
1691
1692 void psxBios_OpenEvent() { // 08
1693         int ev, spec;
1694         int i;
1695
1696         GetEv();
1697         GetSpec();
1698
1699 #ifdef PSXBIOS_LOG
1700         PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1701 #endif
1702
1703         Event[ev][spec].status = EvStWAIT;
1704         Event[ev][spec].mode = a2;
1705         Event[ev][spec].fhandler = a3;
1706
1707         v0 = ev | (spec << 8);
1708         pc0 = ra;
1709 }
1710
1711 void psxBios_CloseEvent() { // 09
1712         int ev, spec;
1713
1714         ev   = a0 & 0xff;
1715         spec = (a0 >> 8) & 0xff;
1716
1717 #ifdef PSXBIOS_LOG
1718         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1719 #endif
1720
1721         Event[ev][spec].status = EvStUNUSED;
1722
1723         v0 = 1; pc0 = ra;
1724 }
1725
1726 void psxBios_WaitEvent() { // 0a
1727         int ev, spec;
1728
1729         ev   = a0 & 0xff;
1730         spec = (a0 >> 8) & 0xff;
1731 #ifdef PSXBIOS_LOG
1732         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1733 #endif
1734         if (Event[ev][spec].status == EvStUNUSED)
1735         {
1736                 v0 = 0;
1737                 pc0 = ra;
1738                 return;
1739         }
1740
1741         if (Event[ev][spec].status == EvStALREADY)
1742         {
1743                 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1744                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1745                 v0 = 1;
1746                 pc0 = ra;
1747                 return;
1748         }
1749
1750         v0 = 0;
1751         pc0 = ra;
1752 }
1753
1754 void psxBios_TestEvent() { // 0b
1755         int ev, spec;
1756
1757         ev   = a0 & 0xff;
1758         spec = (a0 >> 8) & 0xff;
1759
1760         if (Event[ev][spec].status == EvStALREADY) {
1761                 Event[ev][spec].status = EvStACTIVE; v0 = 1;
1762         } else v0 = 0;
1763
1764 #ifdef PSXBIOS_LOG
1765         PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1766 #endif
1767
1768         pc0 = ra;
1769 }
1770
1771 void psxBios_EnableEvent() { // 0c
1772         int ev, spec;
1773
1774         ev   = a0 & 0xff;
1775         spec = (a0 >> 8) & 0xff;
1776
1777 #ifdef PSXBIOS_LOG
1778         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1779 #endif
1780
1781         Event[ev][spec].status = EvStACTIVE;
1782
1783         v0 = 1; pc0 = ra;
1784 }
1785
1786 void psxBios_DisableEvent() { // 0d
1787         int ev, spec;
1788
1789         ev   = a0 & 0xff;
1790         spec = (a0 >> 8) & 0xff;
1791
1792 #ifdef PSXBIOS_LOG
1793         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1794 #endif
1795
1796         Event[ev][spec].status = EvStWAIT;
1797
1798         v0 = 1; pc0 = ra;
1799 }
1800
1801 /*
1802  *      long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1803  */
1804
1805 void psxBios_OpenTh() { // 0e
1806         int th;
1807
1808         for (th=1; th<8; th++)
1809         {
1810                 if (Thread[th].status == 0) break;
1811
1812         }
1813         if (th == 8) {
1814                 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1815                 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1816 #ifdef PSXBIOS_LOG
1817                 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1818 #endif
1819                 v0 = 0xffffffff;
1820                 pc0 = ra;
1821                 return;
1822         }
1823 #ifdef PSXBIOS_LOG
1824         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1825 #endif
1826
1827         Thread[th].status = 1;
1828         Thread[th].func    = a0;
1829         Thread[th].reg[29] = a1;
1830         Thread[th].reg[28] = a2;
1831
1832         v0 = th; pc0 = ra;
1833 }
1834
1835 /*
1836  *      int CloseTh(long thread);
1837  */
1838
1839 void psxBios_CloseTh() { // 0f
1840         int th = a0 & 0xff;
1841
1842 #ifdef PSXBIOS_LOG
1843         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1844 #endif
1845
1846         if (Thread[th].status == 0) {
1847                 v0 = 0;
1848         } else {
1849                 Thread[th].status = 0;
1850                 v0 = 1;
1851         }
1852
1853         pc0 = ra;
1854 }
1855
1856 /*
1857  *      int ChangeTh(long thread);
1858  */
1859
1860 void psxBios_ChangeTh() { // 10
1861         int th = a0 & 0xff;
1862
1863 #ifdef PSXBIOS_LOG
1864 //      PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1865 #endif
1866
1867         if (Thread[th].status == 0 || CurThread == th) {
1868                 v0 = 0;
1869
1870                 pc0 = ra;
1871         } else {
1872                 v0 = 1;
1873
1874                 if (Thread[CurThread].status == 2) {
1875                         Thread[CurThread].status = 1;
1876                         Thread[CurThread].func = ra;
1877                         memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1878                 }
1879
1880                 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1881                 pc0 = Thread[th].func;
1882                 Thread[th].status = 2;
1883                 CurThread = th;
1884         }
1885 }
1886
1887 void psxBios_InitPAD() { // 0x12
1888 #ifdef PSXBIOS_LOG
1889         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1890 #endif
1891
1892         pad_buf1 = (char*)Ra0;
1893         pad_buf1len = a1;
1894         pad_buf2 = (char*)Ra2;
1895         pad_buf2len = a3;
1896
1897         v0 = 1; pc0 = ra;
1898 }
1899
1900 void psxBios_StartPAD() { // 13
1901 #ifdef PSXBIOS_LOG
1902         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1903 #endif
1904
1905         psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1906         psxRegs.CP0.n.Status |= 0x401;
1907         pc0 = ra;
1908 }
1909
1910 void psxBios_StopPAD() { // 14
1911 #ifdef PSXBIOS_LOG
1912         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1913 #endif
1914         if (pad_buf == 0){
1915         pad_buf1 = NULL;
1916         pad_buf2 = NULL;
1917         }
1918         pc0 = ra;
1919 }
1920
1921 void psxBios_PAD_init() { // 15
1922 #ifdef PSXBIOS_LOG
1923         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1924 #endif
1925         if (!(a0 == 0x20000000 || a0 == 0x20000001))
1926         {
1927                 v0 = 0;
1928                 pc0 = ra;
1929                 return;
1930         }
1931         psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1932         pad_buf = (int *)Ra1;
1933         *pad_buf = -1;
1934         psxRegs.CP0.n.Status |= 0x401;
1935         v0 = 2;
1936         pc0 = ra;
1937 }
1938
1939 void psxBios_PAD_dr() { // 16
1940 #ifdef PSXBIOS_LOG
1941         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1942 #endif
1943
1944         v0 = -1; pc0 = ra;
1945 }
1946
1947 void psxBios_ReturnFromException() { // 17
1948         LoadRegs();
1949
1950         pc0 = psxRegs.CP0.n.EPC;
1951         if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1952
1953         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1954                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1955 }
1956
1957 void psxBios_ResetEntryInt() { // 18
1958 #ifdef PSXBIOS_LOG
1959         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1960 #endif
1961
1962         jmp_int = NULL;
1963         pc0 = ra;
1964 }
1965
1966 void psxBios_HookEntryInt() { // 19
1967 #ifdef PSXBIOS_LOG
1968         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1969 #endif
1970
1971         jmp_int = (u32*)Ra0;
1972         pc0 = ra;
1973 }
1974
1975 void psxBios_UnDeliverEvent() { // 0x20
1976         int ev, spec;
1977         int i;
1978
1979         GetEv();
1980         GetSpec();
1981
1982 #ifdef PSXBIOS_LOG
1983         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1984 #endif
1985
1986         if (Event[ev][spec].status == EvStALREADY &&
1987                 Event[ev][spec].mode == EvMdNOINTR)
1988                 Event[ev][spec].status = EvStACTIVE;
1989
1990         pc0 = ra;
1991 }
1992
1993 char ffile[64], *pfile;
1994 int nfile;
1995 static void buopen(int mcd, u8 *ptr, u8 *cfg)
1996 {
1997         int i;
1998         u8 *fptr = ptr;
1999
2000         strcpy(FDesc[1 + mcd].name, Ra0+5);
2001         FDesc[1 + mcd].offset = 0;
2002         FDesc[1 + mcd].mode   = a1;
2003
2004         for (i=1; i<16; i++) {
2005                 fptr += 128;
2006                 if ((*fptr & 0xF0) != 0x50) continue;
2007                 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
2008                 FDesc[1 + mcd].mcfile = i;
2009                 SysPrintf("open %s\n", fptr+0xa);
2010                 v0 = 1 + mcd;
2011                 break;
2012         }
2013         if (a1 & 0x200 && v0 == -1) { /* FCREAT */
2014                 fptr = ptr;
2015                 for (i=1; i<16; i++) {
2016                         int j, xor, nblk = a1 >> 16;
2017                         u8 *pptr, *fptr2;
2018
2019                         fptr += 128;
2020                         if ((*fptr & 0xF0) != 0xa0) continue;
2021
2022                         FDesc[1 + mcd].mcfile = i;
2023                         fptr[0] = 0x51;
2024                         fptr[4] = 0x00;
2025                         fptr[5] = 0x20 * nblk;
2026                         fptr[6] = 0x00;
2027                         fptr[7] = 0x00;
2028                         strcpy(fptr+0xa, FDesc[1 + mcd].name);
2029                         pptr = fptr2 = fptr;
2030                         for(j=2; j<=nblk; j++) {
2031                                 int k;
2032                                 for(i++; i<16; i++) {
2033                                         fptr2 += 128;
2034
2035                                         memset(fptr2, 0, 128);
2036                                         fptr2[0] = j < nblk ? 0x52 : 0x53;
2037                                         pptr[8] = i - 1;
2038                                         pptr[9] = 0;
2039                                         for (k=0, xor=0; k<127; k++) xor^= pptr[k];
2040                                         pptr[127] = xor;
2041                                         pptr = fptr2;
2042                                         break;
2043                                 }
2044                                 /* shouldn't this return ENOSPC if i == 16? */
2045                         }
2046                         pptr[8] = pptr[9] = 0xff;
2047                         for (j=0, xor=0; j<127; j++) xor^= pptr[j];
2048                         pptr[127] = xor;
2049                         SysPrintf("openC %s %d\n", ptr, nblk);
2050                         v0 = 1 + mcd;
2051                         /* just go ahead and resave them all */
2052                         SaveMcd(cfg, ptr, 128, 128 * 15);
2053                         break;
2054                 }
2055                 /* shouldn't this return ENOSPC if i == 16? */
2056         }
2057 }
2058
2059 /*
2060  *      int open(char *name , int mode);
2061  */
2062
2063 void psxBios_open() { // 0x32
2064         int i;
2065         char *ptr;
2066         void *pa0 = Ra0;
2067
2068 #ifdef PSXBIOS_LOG
2069         PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
2070 #endif
2071
2072         v0 = -1;
2073
2074         if (pa0) {
2075                 if (!strncmp(pa0, "bu00", 4)) {
2076                         buopen(1, Mcd1Data, Config.Mcd1);
2077                 }
2078
2079                 if (!strncmp(pa0, "bu10", 4)) {
2080                         buopen(2, Mcd2Data, Config.Mcd2);
2081                 }
2082         }
2083
2084         pc0 = ra;
2085 }
2086
2087 /*
2088  *      int lseek(int fd , int offset , int whence);
2089  */
2090
2091 void psxBios_lseek() { // 0x33
2092 #ifdef PSXBIOS_LOG
2093         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2094 #endif
2095
2096         switch (a2) {
2097                 case 0: // SEEK_SET
2098                         FDesc[a0].offset = a1;
2099                         v0 = a1;
2100 //                      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2101 //                      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2102                         break;
2103
2104                 case 1: // SEEK_CUR
2105                         FDesc[a0].offset+= a1;
2106                         v0 = FDesc[a0].offset;
2107                         break;
2108         }
2109
2110         pc0 = ra;
2111 }
2112
2113
2114 /*
2115  *      int read(int fd , void *buf , int nbytes);
2116  */
2117
2118 void psxBios_read() { // 0x34
2119         char *ptr;
2120         void *pa1 = Ra1;
2121
2122 #ifdef PSXBIOS_LOG
2123         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2124 #endif
2125
2126         v0 = -1;
2127
2128         if (pa1) {
2129                 switch (a0) {
2130                         case 2: buread(pa1, 1, a2); break;
2131                         case 3: buread(pa1, 2, a2); break;
2132                 }
2133         }
2134
2135         pc0 = ra;
2136 }
2137
2138 /*
2139  *      int write(int fd , void *buf , int nbytes);
2140  */
2141
2142 void psxBios_write() { // 0x35/0x03
2143         char *ptr;
2144         void *pa1 = Ra1;
2145
2146 #ifdef PSXBIOS_LOG
2147         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2148 #endif
2149
2150         v0 = -1;
2151         if (!pa1) {
2152                 pc0 = ra;
2153                 return;
2154         }
2155
2156         if (a0 == 1) { // stdout
2157                 char *ptr = pa1;
2158
2159                 v0 = a2;
2160                 while (a2 > 0) {
2161                         SysPrintf("%c", *ptr++); a2--;
2162                 }
2163                 pc0 = ra; return;
2164         }
2165
2166         switch (a0) {
2167                 case 2: buwrite(pa1, 1, a2); break;
2168                 case 3: buwrite(pa1, 2, a2); break;
2169         }
2170
2171         pc0 = ra;
2172 }
2173
2174 /*
2175  *      int close(int fd);
2176  */
2177
2178 void psxBios_close() { // 0x36
2179 #ifdef PSXBIOS_LOG
2180         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2181 #endif
2182
2183         v0 = a0;
2184         pc0 = ra;
2185 }
2186
2187 void psxBios_putchar() { // 3d
2188         SysPrintf("%c", (char)a0);
2189         pc0 = ra;
2190 }
2191
2192 void psxBios_puts() { // 3e/3f
2193         SysPrintf("%s", Ra0);
2194         pc0 = ra;
2195 }
2196
2197 char ffile[64], *pfile;
2198 int nfile;
2199
2200 #define bufile(mcd) { \
2201         while (nfile < 16) { \
2202                 int match=1; \
2203  \
2204                 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
2205                 nfile++; \
2206                 if ((*ptr & 0xF0) != 0x50) continue; \
2207                 /* Bug link files show up as free block. */ \
2208                 if (!ptr[0xa]) continue; \
2209                 ptr+= 0xa; \
2210                 if (pfile[0] == 0) { \
2211                         strncpy(dir->name, ptr, sizeof(dir->name)); \
2212                         dir->name[sizeof(dir->name) - 1] = '\0'; \
2213                 } else for (i=0; i<20; i++) { \
2214                         if (pfile[i] == ptr[i]) { \
2215                                                                 dir->name[i] = ptr[i]; continue; } \
2216                         if (pfile[i] == '?') { \
2217                                 dir->name[i] = ptr[i]; continue; } \
2218                         if (pfile[i] == '*') { \
2219                                 strcpy(dir->name+i, ptr+i); break; } \
2220                         match = 0; break; \
2221                 } \
2222                 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
2223                 if (match == 0) { continue; } \
2224                 dir->size = 8192; \
2225                 v0 = _dir; \
2226                 break; \
2227         } \
2228 }
2229
2230 /*
2231  *      struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2232  */
2233
2234 void psxBios_firstfile() { // 42
2235         struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
2236         void *pa0 = Ra0;
2237         u32 _dir = a1;
2238         char *ptr;
2239         int i;
2240
2241 #ifdef PSXBIOS_LOG
2242         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2243 #endif
2244
2245         v0 = 0;
2246
2247         if (pa0) {
2248                 strcpy(ffile, pa0);
2249                 pfile = ffile+5;
2250                 nfile = 1;
2251                 if (!strncmp(pa0, "bu00", 4)) {
2252                         // firstfile() calls _card_read() internally, so deliver it's event
2253                         DeliverEvent(0x11, 0x2);
2254                         bufile(1);
2255                 } else if (!strncmp(pa0, "bu10", 4)) {
2256                         // firstfile() calls _card_read() internally, so deliver it's event
2257                         DeliverEvent(0x11, 0x2);
2258                         bufile(2);
2259                 }
2260         }
2261
2262         pc0 = ra;
2263 }
2264
2265 /*
2266  *      struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2267  */
2268
2269 void psxBios_nextfile() { // 43
2270         struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2271         u32 _dir = a0;
2272         char *ptr;
2273         int i;
2274
2275 #ifdef PSXBIOS_LOG
2276         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2277 #endif
2278
2279         v0 = 0;
2280
2281         if (!strncmp(ffile, "bu00", 4)) {
2282                 bufile(1);
2283         }
2284
2285         if (!strncmp(ffile, "bu10", 4)) {
2286                 bufile(2);
2287         }
2288
2289         pc0 = ra;
2290 }
2291
2292 #define burename(mcd) { \
2293         for (i=1; i<16; i++) { \
2294                 int namelen, j, xor = 0; \
2295                 ptr = Mcd##mcd##Data + 128 * i; \
2296                 if ((*ptr & 0xF0) != 0x50) continue; \
2297                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2298                 namelen = strlen(Ra1+5); \
2299                 memcpy(ptr+0xa, Ra1+5, namelen); \
2300                 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2301                 for (j=0; j<127; j++) xor^= ptr[j]; \
2302                 ptr[127] = xor; \
2303                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2304                 v0 = 1; \
2305                 break; \
2306         } \
2307 }
2308
2309 /*
2310  *      int rename(char *old, char *new);
2311  */
2312
2313 void psxBios_rename() { // 44
2314         void *pa0 = Ra0;
2315         void *pa1 = Ra1;
2316         char *ptr;
2317         int i;
2318
2319 #ifdef PSXBIOS_LOG
2320         PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2321 #endif
2322
2323         v0 = 0;
2324
2325         if (pa0 && pa1) {
2326                 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2327                         burename(1);
2328                 }
2329
2330                 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2331                         burename(2);
2332                 }
2333         }
2334
2335         pc0 = ra;
2336 }
2337
2338
2339 #define budelete(mcd) { \
2340         for (i=1; i<16; i++) { \
2341                 ptr = Mcd##mcd##Data + 128 * i; \
2342                 if ((*ptr & 0xF0) != 0x50) continue; \
2343                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2344                 *ptr = (*ptr & 0xf) | 0xA0; \
2345                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2346                 SysPrintf("delete %s\n", ptr+0xa); \
2347                 v0 = 1; \
2348                 break; \
2349         } \
2350 }
2351
2352 /*
2353  *      int delete(char *name);
2354  */
2355
2356 void psxBios_delete() { // 45
2357         void *pa0 = Ra0;
2358         char *ptr;
2359         int i;
2360
2361 #ifdef PSXBIOS_LOG
2362         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2363 #endif
2364
2365         v0 = 0;
2366
2367         if (pa0) {
2368                 if (!strncmp(pa0, "bu00", 4)) {
2369                         budelete(1);
2370                 }
2371
2372                 if (!strncmp(pa0, "bu10", 4)) {
2373                         budelete(2);
2374                 }
2375         }
2376
2377         pc0 = ra;
2378 }
2379
2380 void psxBios_InitCARD() { // 4a
2381 #ifdef PSXBIOS_LOG
2382         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2383 #endif
2384
2385         CardState = 0;
2386
2387         pc0 = ra;
2388 }
2389
2390 void psxBios_StartCARD() { // 4b
2391 #ifdef PSXBIOS_LOG
2392         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2393 #endif
2394
2395         if (CardState == 0) CardState = 1;
2396
2397         pc0 = ra;
2398 }
2399
2400 void psxBios_StopCARD() { // 4c
2401 #ifdef PSXBIOS_LOG
2402         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2403 #endif
2404
2405         if (CardState == 1) CardState = 0;
2406
2407         pc0 = ra;
2408 }
2409
2410 void psxBios__card_write() { // 0x4e
2411         void *pa2 = Ra2;
2412         int port;
2413
2414 #ifdef PSXBIOS_LOG
2415         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2416 #endif
2417         /* Function also accepts sector 400h (a bug) */
2418         if (!(a1 <= 0x400))
2419         {
2420                 /* Invalid sectors */
2421                 v0 = 0; pc0 = ra;
2422                 return;
2423         }
2424         card_active_chan = a0;
2425         port = a0 >> 4;
2426
2427         if (pa2) {
2428                 if (port == 0) {
2429                         memcpy(Mcd1Data + a1 * 128, pa2, 128);
2430                         SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2431                 } else {
2432                         memcpy(Mcd2Data + a1 * 128, pa2, 128);
2433                         SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2434                 }
2435         }
2436
2437         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2438 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2439
2440         v0 = 1; pc0 = ra;
2441 }
2442
2443 void psxBios__card_read() { // 0x4f
2444         void *pa2 = Ra2;
2445         int port;
2446
2447 #ifdef PSXBIOS_LOG
2448         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2449 #endif
2450         /* Function also accepts sector 400h (a bug) */
2451         if (!(a1 <= 0x400))
2452         {
2453                 /* Invalid sectors */
2454                 v0 = 0; pc0 = ra;
2455                 return;
2456         }
2457         card_active_chan = a0;
2458         port = a0 >> 4;
2459
2460         if (pa2) {
2461                 if (port == 0) {
2462                         memcpy(pa2, Mcd1Data + a1 * 128, 128);
2463                 } else {
2464                         memcpy(pa2, Mcd2Data + a1 * 128, 128);
2465                 }
2466         }
2467
2468         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2469 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2470
2471         v0 = 1; pc0 = ra;
2472 }
2473
2474 void psxBios__new_card() { // 0x50
2475 #ifdef PSXBIOS_LOG
2476         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2477 #endif
2478
2479         pc0 = ra;
2480 }
2481
2482 /* According to a user, this allows Final Fantasy Tactics to save/load properly */
2483 void psxBios__get_error(void) // 55
2484 {
2485         v0 = 0;
2486         pc0 = ra;
2487 }
2488
2489 void psxBios_Krom2RawAdd() { // 0x51
2490         int i = 0;
2491
2492         const u32 table_8140[][2] = {
2493                 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2494                 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2495                 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2496                 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2497                 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2498                 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2499                 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2500                 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2501                 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2502                 {0xffff, 0}
2503         };
2504
2505         const u32 table_889f[][2] = {
2506                 {0x889f, 0x3d68},  {0x8900, 0x40ec},  {0x897f, 0x4fb0},  {0x8a00, 0x56f4},
2507                 {0x8a7f, 0x65b8},  {0x8b00, 0x6cfc},  {0x8b7f, 0x7bc0},  {0x8c00, 0x8304},
2508                 {0x8c7f, 0x91c8},  {0x8d00, 0x990c},  {0x8d7f, 0xa7d0},  {0x8e00, 0xaf14},
2509                 {0x8e7f, 0xbdd8},  {0x8f00, 0xc51c},  {0x8f7f, 0xd3e0},  {0x9000, 0xdb24},
2510                 {0x907f, 0xe9e8},  {0x9100, 0xf12c},  {0x917f, 0xfff0},  {0x9200, 0x10734},
2511                 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2512                 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2513                 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2514                 {0xffff, 0}
2515         };
2516
2517         if (a0 >= 0x8140 && a0 <= 0x84be) {
2518                 while (table_8140[i][0] <= a0) i++;
2519                 a0 -= table_8140[i - 1][0];
2520                 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2521         } else if (a0 >= 0x889f && a0 <= 0x9872) {
2522                 while (table_889f[i][0] <= a0) i++;
2523                 a0 -= table_889f[i - 1][0];
2524                 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2525         } else {
2526                 v0 = 0xffffffff;
2527         }
2528
2529         pc0 = ra;
2530 }
2531
2532 void psxBios_GetC0Table() { // 56
2533 #ifdef PSXBIOS_LOG
2534         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2535 #endif
2536
2537         v0 = 0x674; pc0 = ra;
2538 }
2539
2540 void psxBios_GetB0Table() { // 57
2541 #ifdef PSXBIOS_LOG
2542         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2543 #endif
2544
2545         v0 = 0x874; pc0 = ra;
2546 }
2547
2548 void psxBios__card_chan() { // 0x58
2549 #ifdef PSXBIOS_LOG
2550         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2551 #endif
2552
2553         v0 = card_active_chan;
2554         pc0 = ra;
2555 }
2556
2557 void psxBios_ChangeClearPad() { // 5b
2558 #ifdef PSXBIOS_LOG
2559         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2560 #endif
2561
2562         pc0 = ra;
2563 }
2564
2565 /* System calls C0 */
2566
2567 /*
2568  * int SysEnqIntRP(int index , long *queue);
2569  */
2570
2571 void psxBios_SysEnqIntRP() { // 02
2572 #ifdef PSXBIOS_LOG
2573         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2574 #endif
2575
2576         SysIntRP[a0] = a1;
2577
2578         v0 = 0; pc0 = ra;
2579 }
2580
2581 /*
2582  * int SysDeqIntRP(int index , long *queue);
2583  */
2584
2585 void psxBios_SysDeqIntRP() { // 03
2586 #ifdef PSXBIOS_LOG
2587         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2588 #endif
2589
2590         SysIntRP[a0] = 0;
2591
2592         v0 = 0; pc0 = ra;
2593 }
2594
2595 void psxBios_ChangeClearRCnt() { // 0a
2596         u32 *ptr;
2597
2598 #ifdef PSXBIOS_LOG
2599         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2600 #endif
2601
2602         ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2603         v0 = *ptr;
2604         *ptr = a1;
2605
2606 //      psxRegs.CP0.n.Status|= 0x404;
2607         pc0 = ra;
2608 }
2609
2610 void psxBios_dummy() {
2611 #ifdef PSXBIOS_LOG
2612         PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2613 #endif
2614         pc0 = ra;
2615 }
2616
2617 void (*biosA0[256])();
2618 void (*biosB0[256])();
2619 void (*biosC0[256])();
2620
2621 #include "sjisfont.h"
2622
2623 void psxBiosInit() {
2624         u32 base, size;
2625         u32 *ptr;
2626         int i;
2627         uLongf len;
2628
2629         for(i = 0; i < 256; i++) {
2630                 biosA0[i] = NULL;
2631                 biosB0[i] = NULL;
2632                 biosC0[i] = NULL;
2633         }
2634         biosA0[0x3e] = psxBios_puts;
2635         biosA0[0x3f] = psxBios_printf;
2636
2637         biosB0[0x3d] = psxBios_putchar;
2638         biosB0[0x3f] = psxBios_puts;
2639
2640         if (!Config.HLE) return;
2641
2642         for(i = 0; i < 256; i++) {
2643                 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2644                 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2645                 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2646         }
2647
2648         biosA0[0x00] = psxBios_open;
2649         biosA0[0x01] = psxBios_lseek;
2650         biosA0[0x02] = psxBios_read;
2651         biosA0[0x03] = psxBios_write;
2652         biosA0[0x04] = psxBios_close;
2653         //biosA0[0x05] = psxBios_ioctl;
2654         //biosA0[0x06] = psxBios_exit;
2655         //biosA0[0x07] = psxBios_sys_a0_07;
2656         biosA0[0x08] = psxBios_getc;
2657         biosA0[0x09] = psxBios_putc;
2658         biosA0[0x0a] = psxBios_todigit;
2659         //biosA0[0x0b] = psxBios_atof;
2660         //biosA0[0x0c] = psxBios_strtoul;
2661         //biosA0[0x0d] = psxBios_strtol;
2662         biosA0[0x0e] = psxBios_abs;
2663         biosA0[0x0f] = psxBios_labs;
2664         biosA0[0x10] = psxBios_atoi;
2665         biosA0[0x11] = psxBios_atol;
2666         //biosA0[0x12] = psxBios_atob;
2667         biosA0[0x13] = psxBios_setjmp;
2668         biosA0[0x14] = psxBios_longjmp;
2669         biosA0[0x15] = psxBios_strcat;
2670         biosA0[0x16] = psxBios_strncat;
2671         biosA0[0x17] = psxBios_strcmp;
2672         biosA0[0x18] = psxBios_strncmp;
2673         biosA0[0x19] = psxBios_strcpy;
2674         biosA0[0x1a] = psxBios_strncpy;
2675         biosA0[0x1b] = psxBios_strlen;
2676         biosA0[0x1c] = psxBios_index;
2677         biosA0[0x1d] = psxBios_rindex;
2678         biosA0[0x1e] = psxBios_strchr;
2679         biosA0[0x1f] = psxBios_strrchr;
2680         biosA0[0x20] = psxBios_strpbrk;
2681         biosA0[0x21] = psxBios_strspn;
2682         biosA0[0x22] = psxBios_strcspn;
2683         biosA0[0x23] = psxBios_strtok;
2684         biosA0[0x24] = psxBios_strstr;
2685         biosA0[0x25] = psxBios_toupper;
2686         biosA0[0x26] = psxBios_tolower;
2687         biosA0[0x27] = psxBios_bcopy;
2688         biosA0[0x28] = psxBios_bzero;
2689         biosA0[0x29] = psxBios_bcmp;
2690         biosA0[0x2a] = psxBios_memcpy;
2691         biosA0[0x2b] = psxBios_memset;
2692         biosA0[0x2c] = psxBios_memmove;
2693         biosA0[0x2d] = psxBios_memcmp;
2694         biosA0[0x2e] = psxBios_memchr;
2695         biosA0[0x2f] = psxBios_rand;
2696         biosA0[0x30] = psxBios_srand;
2697         biosA0[0x31] = psxBios_qsort;
2698         //biosA0[0x32] = psxBios_strtod;
2699         biosA0[0x33] = psxBios_malloc;
2700         biosA0[0x34] = psxBios_free;
2701         //biosA0[0x35] = psxBios_lsearch;
2702         //biosA0[0x36] = psxBios_bsearch;
2703         biosA0[0x37] = psxBios_calloc;
2704         biosA0[0x38] = psxBios_realloc;
2705         biosA0[0x39] = psxBios_InitHeap;
2706         //biosA0[0x3a] = psxBios__exit;
2707         biosA0[0x3b] = psxBios_getchar;
2708         biosA0[0x3c] = psxBios_putchar;
2709         //biosA0[0x3d] = psxBios_gets;
2710         //biosA0[0x40] = psxBios_sys_a0_40;
2711         //biosA0[0x41] = psxBios_LoadTest;
2712         biosA0[0x42] = psxBios_Load;
2713         biosA0[0x43] = psxBios_Exec;
2714         biosA0[0x44] = psxBios_FlushCache;
2715         //biosA0[0x45] = psxBios_InstallInterruptHandler;
2716         biosA0[0x46] = psxBios_GPU_dw;
2717         biosA0[0x47] = psxBios_mem2vram;
2718         biosA0[0x48] = psxBios_SendGPU;
2719         biosA0[0x49] = psxBios_GPU_cw;
2720         biosA0[0x4a] = psxBios_GPU_cwb;
2721         biosA0[0x4b] = psxBios_GPU_SendPackets;
2722         biosA0[0x4c] = psxBios_sys_a0_4c;
2723         biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2724         //biosA0[0x4e] = psxBios_GPU_sync;
2725         //biosA0[0x4f] = psxBios_sys_a0_4f;
2726         //biosA0[0x50] = psxBios_sys_a0_50;
2727         biosA0[0x51] = psxBios_LoadExec;
2728         //biosA0[0x52] = psxBios_GetSysSp;
2729         //biosA0[0x53] = psxBios_sys_a0_53;
2730         //biosA0[0x54] = psxBios__96_init_a54;
2731         //biosA0[0x55] = psxBios__bu_init_a55;
2732         //biosA0[0x56] = psxBios__96_remove_a56;
2733         //biosA0[0x57] = psxBios_sys_a0_57;
2734         //biosA0[0x58] = psxBios_sys_a0_58;
2735         //biosA0[0x59] = psxBios_sys_a0_59;
2736         //biosA0[0x5a] = psxBios_sys_a0_5a;
2737         //biosA0[0x5b] = psxBios_dev_tty_init;
2738         //biosA0[0x5c] = psxBios_dev_tty_open;
2739         //biosA0[0x5d] = psxBios_sys_a0_5d;
2740         //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2741         //biosA0[0x5f] = psxBios_dev_cd_open;
2742         //biosA0[0x60] = psxBios_dev_cd_read;
2743         //biosA0[0x61] = psxBios_dev_cd_close;
2744         //biosA0[0x62] = psxBios_dev_cd_firstfile;
2745         //biosA0[0x63] = psxBios_dev_cd_nextfile;
2746         //biosA0[0x64] = psxBios_dev_cd_chdir;
2747         //biosA0[0x65] = psxBios_dev_card_open;
2748         //biosA0[0x66] = psxBios_dev_card_read;
2749         //biosA0[0x67] = psxBios_dev_card_write;
2750         //biosA0[0x68] = psxBios_dev_card_close;
2751         //biosA0[0x69] = psxBios_dev_card_firstfile;
2752         //biosA0[0x6a] = psxBios_dev_card_nextfile;
2753         //biosA0[0x6b] = psxBios_dev_card_erase;
2754         //biosA0[0x6c] = psxBios_dev_card_undelete;
2755         //biosA0[0x6d] = psxBios_dev_card_format;
2756         //biosA0[0x6e] = psxBios_dev_card_rename;
2757         //biosA0[0x6f] = psxBios_dev_card_6f;
2758         biosA0[0x70] = psxBios__bu_init;
2759         biosA0[0x71] = psxBios__96_init;
2760         biosA0[0x72] = psxBios__96_remove;
2761         //biosA0[0x73] = psxBios_sys_a0_73;
2762         //biosA0[0x74] = psxBios_sys_a0_74;
2763         //biosA0[0x75] = psxBios_sys_a0_75;
2764         //biosA0[0x76] = psxBios_sys_a0_76;
2765         //biosA0[0x77] = psxBios_sys_a0_77;
2766         //biosA0[0x78] = psxBios__96_CdSeekL;
2767         //biosA0[0x79] = psxBios_sys_a0_79;
2768         //biosA0[0x7a] = psxBios_sys_a0_7a;
2769         //biosA0[0x7b] = psxBios_sys_a0_7b;
2770         //biosA0[0x7c] = psxBios__96_CdGetStatus;
2771         //biosA0[0x7d] = psxBios_sys_a0_7d;
2772         //biosA0[0x7e] = psxBios__96_CdRead;
2773         //biosA0[0x7f] = psxBios_sys_a0_7f;
2774         //biosA0[0x80] = psxBios_sys_a0_80;
2775         //biosA0[0x81] = psxBios_sys_a0_81;
2776         //biosA0[0x82] = psxBios_sys_a0_82;
2777         //biosA0[0x83] = psxBios_sys_a0_83;
2778         //biosA0[0x84] = psxBios_sys_a0_84;
2779         //biosA0[0x85] = psxBios__96_CdStop;
2780         //biosA0[0x86] = psxBios_sys_a0_86;
2781         //biosA0[0x87] = psxBios_sys_a0_87;
2782         //biosA0[0x88] = psxBios_sys_a0_88;
2783         //biosA0[0x89] = psxBios_sys_a0_89;
2784         //biosA0[0x8a] = psxBios_sys_a0_8a;
2785         //biosA0[0x8b] = psxBios_sys_a0_8b;
2786         //biosA0[0x8c] = psxBios_sys_a0_8c;
2787         //biosA0[0x8d] = psxBios_sys_a0_8d;
2788         //biosA0[0x8e] = psxBios_sys_a0_8e;
2789         //biosA0[0x8f] = psxBios_sys_a0_8f;
2790         //biosA0[0x90] = psxBios_sys_a0_90;
2791         //biosA0[0x91] = psxBios_sys_a0_91;
2792         //biosA0[0x92] = psxBios_sys_a0_92;
2793         //biosA0[0x93] = psxBios_sys_a0_93;
2794         //biosA0[0x94] = psxBios_sys_a0_94;
2795         //biosA0[0x95] = psxBios_sys_a0_95;
2796         //biosA0[0x96] = psxBios_AddCDROMDevice;
2797         //biosA0[0x97] = psxBios_AddMemCardDevide;
2798         //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2799         //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2800         //biosA0[0x9a] = psxBios_sys_a0_9a;
2801         //biosA0[0x9b] = psxBios_sys_a0_9b;
2802         //biosA0[0x9c] = psxBios_SetConf;
2803         //biosA0[0x9d] = psxBios_GetConf;
2804         //biosA0[0x9e] = psxBios_sys_a0_9e;
2805         biosA0[0x9f] = psxBios_SetMem;
2806         //biosA0[0xa0] = psxBios__boot;
2807         //biosA0[0xa1] = psxBios_SystemError;
2808         //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2809         //biosA0[0xa3] = psxBios_DequeueCdIntr;
2810         //biosA0[0xa4] = psxBios_sys_a0_a4;
2811         //biosA0[0xa5] = psxBios_ReadSector;
2812         //biosA0[0xa6] = psxBios_get_cd_status;
2813         //biosA0[0xa7] = psxBios_bufs_cb_0;
2814         //biosA0[0xa8] = psxBios_bufs_cb_1;
2815         //biosA0[0xa9] = psxBios_bufs_cb_2;
2816         //biosA0[0xaa] = psxBios_bufs_cb_3;
2817         biosA0[0xab] = psxBios__card_info;
2818         biosA0[0xac] = psxBios__card_load;
2819         //biosA0[0axd] = psxBios__card_auto;
2820         //biosA0[0xae] = psxBios_bufs_cd_4;
2821         //biosA0[0xaf] = psxBios_sys_a0_af;
2822         //biosA0[0xb0] = psxBios_sys_a0_b0;
2823         //biosA0[0xb1] = psxBios_sys_a0_b1;
2824         //biosA0[0xb2] = psxBios_do_a_long_jmp
2825         //biosA0[0xb3] = psxBios_sys_a0_b3;
2826         //biosA0[0xb4] = psxBios_sub_function;
2827 //*******************B0 CALLS****************************
2828         //biosB0[0x00] = psxBios_SysMalloc;
2829         //biosB0[0x01] = psxBios_sys_b0_01;
2830         biosB0[0x02] = psxBios_SetRCnt;
2831         biosB0[0x03] = psxBios_GetRCnt;
2832         biosB0[0x04] = psxBios_StartRCnt;
2833         biosB0[0x05] = psxBios_StopRCnt;
2834         biosB0[0x06] = psxBios_ResetRCnt;
2835         biosB0[0x07] = psxBios_DeliverEvent;
2836         biosB0[0x08] = psxBios_OpenEvent;
2837         biosB0[0x09] = psxBios_CloseEvent;
2838         biosB0[0x0a] = psxBios_WaitEvent;
2839         biosB0[0x0b] = psxBios_TestEvent;
2840         biosB0[0x0c] = psxBios_EnableEvent;
2841         biosB0[0x0d] = psxBios_DisableEvent;
2842         biosB0[0x0e] = psxBios_OpenTh;
2843         biosB0[0x0f] = psxBios_CloseTh;
2844         biosB0[0x10] = psxBios_ChangeTh;
2845         //biosB0[0x11] = psxBios_psxBios_b0_11;
2846         biosB0[0x12] = psxBios_InitPAD;
2847         biosB0[0x13] = psxBios_StartPAD;
2848         biosB0[0x14] = psxBios_StopPAD;
2849         biosB0[0x15] = psxBios_PAD_init;
2850         biosB0[0x16] = psxBios_PAD_dr;
2851         biosB0[0x17] = psxBios_ReturnFromException;
2852         biosB0[0x18] = psxBios_ResetEntryInt;
2853         biosB0[0x19] = psxBios_HookEntryInt;
2854         //biosB0[0x1a] = psxBios_sys_b0_1a;
2855         //biosB0[0x1b] = psxBios_sys_b0_1b;
2856         //biosB0[0x1c] = psxBios_sys_b0_1c;
2857         //biosB0[0x1d] = psxBios_sys_b0_1d;
2858         //biosB0[0x1e] = psxBios_sys_b0_1e;
2859         //biosB0[0x1f] = psxBios_sys_b0_1f;
2860         biosB0[0x20] = psxBios_UnDeliverEvent;
2861         //biosB0[0x21] = psxBios_sys_b0_21;
2862         //biosB0[0x22] = psxBios_sys_b0_22;
2863         //biosB0[0x23] = psxBios_sys_b0_23;
2864         //biosB0[0x24] = psxBios_sys_b0_24;
2865         //biosB0[0x25] = psxBios_sys_b0_25;
2866         //biosB0[0x26] = psxBios_sys_b0_26;
2867         //biosB0[0x27] = psxBios_sys_b0_27;
2868         //biosB0[0x28] = psxBios_sys_b0_28;
2869         //biosB0[0x29] = psxBios_sys_b0_29;
2870         //biosB0[0x2a] = psxBios_sys_b0_2a;
2871         //biosB0[0x2b] = psxBios_sys_b0_2b;
2872         //biosB0[0x2c] = psxBios_sys_b0_2c;
2873         //biosB0[0x2d] = psxBios_sys_b0_2d;
2874         //biosB0[0x2e] = psxBios_sys_b0_2e;
2875         //biosB0[0x2f] = psxBios_sys_b0_2f;
2876         //biosB0[0x30] = psxBios_sys_b0_30;
2877         //biosB0[0x31] = psxBios_sys_b0_31;
2878         biosB0[0x32] = psxBios_open;
2879         biosB0[0x33] = psxBios_lseek;
2880         biosB0[0x34] = psxBios_read;
2881         biosB0[0x35] = psxBios_write;
2882         biosB0[0x36] = psxBios_close;
2883         //biosB0[0x37] = psxBios_ioctl;
2884         //biosB0[0x38] = psxBios_exit;
2885         //biosB0[0x39] = psxBios_sys_b0_39;
2886         //biosB0[0x3a] = psxBios_getc;
2887         //biosB0[0x3b] = psxBios_putc;
2888         biosB0[0x3c] = psxBios_getchar;
2889         //biosB0[0x3e] = psxBios_gets;
2890         //biosB0[0x40] = psxBios_cd;
2891         biosB0[0x41] = psxBios_format;
2892         biosB0[0x42] = psxBios_firstfile;
2893         biosB0[0x43] = psxBios_nextfile;
2894         biosB0[0x44] = psxBios_rename;
2895         biosB0[0x45] = psxBios_delete;
2896         //biosB0[0x46] = psxBios_undelete;
2897         //biosB0[0x47] = psxBios_AddDevice;
2898         //biosB0[0x48] = psxBios_RemoteDevice;
2899         //biosB0[0x49] = psxBios_PrintInstalledDevices;
2900         biosB0[0x4a] = psxBios_InitCARD;
2901         biosB0[0x4b] = psxBios_StartCARD;
2902         biosB0[0x4c] = psxBios_StopCARD;
2903         //biosB0[0x4d] = psxBios_sys_b0_4d;
2904         biosB0[0x4e] = psxBios__card_write;
2905         biosB0[0x4f] = psxBios__card_read;
2906         biosB0[0x50] = psxBios__new_card;
2907         biosB0[0x51] = psxBios_Krom2RawAdd;
2908         //biosB0[0x52] = psxBios_sys_b0_52;
2909         //biosB0[0x53] = psxBios_sys_b0_53;
2910         //biosB0[0x54] = psxBios__get_errno;
2911         biosB0[0x55] = psxBios__get_error;
2912         biosB0[0x56] = psxBios_GetC0Table;
2913         biosB0[0x57] = psxBios_GetB0Table;
2914         biosB0[0x58] = psxBios__card_chan;
2915         //biosB0[0x59] = psxBios_sys_b0_59;
2916         //biosB0[0x5a] = psxBios_sys_b0_5a;
2917         biosB0[0x5b] = psxBios_ChangeClearPad;
2918         //biosB0[0x5c] = psxBios__card_status;
2919         //biosB0[0x5d] = psxBios__card_wait;
2920 //*******************C0 CALLS****************************
2921         //biosC0[0x00] = psxBios_InitRCnt;
2922         //biosC0[0x01] = psxBios_InitException;
2923         biosC0[0x02] = psxBios_SysEnqIntRP;
2924         biosC0[0x03] = psxBios_SysDeqIntRP;
2925         //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2926         //biosC0[0x05] = psxBios_get_free_TCB_slot;
2927         //biosC0[0x06] = psxBios_ExceptionHandler;
2928         //biosC0[0x07] = psxBios_InstallExeptionHandler;
2929         //biosC0[0x08] = psxBios_SysInitMemory;
2930         //biosC0[0x09] = psxBios_SysInitKMem;
2931         biosC0[0x0a] = psxBios_ChangeClearRCnt;
2932         //biosC0[0x0b] = psxBios_SystemError;
2933         //biosC0[0x0c] = psxBios_InitDefInt;
2934         //biosC0[0x0d] = psxBios_sys_c0_0d;
2935         //biosC0[0x0e] = psxBios_sys_c0_0e;
2936         //biosC0[0x0f] = psxBios_sys_c0_0f;
2937         //biosC0[0x10] = psxBios_sys_c0_10;
2938         //biosC0[0x11] = psxBios_sys_c0_11;
2939         //biosC0[0x12] = psxBios_InstallDevices;
2940         //biosC0[0x13] = psxBios_FlushStfInOutPut;
2941         //biosC0[0x14] = psxBios_sys_c0_14;
2942         //biosC0[0x15] = psxBios__cdevinput;
2943         //biosC0[0x16] = psxBios__cdevscan;
2944         //biosC0[0x17] = psxBios__circgetc;
2945         //biosC0[0x18] = psxBios__circputc;
2946         //biosC0[0x19] = psxBios_ioabort;
2947         //biosC0[0x1a] = psxBios_sys_c0_1a
2948         //biosC0[0x1b] = psxBios_KernelRedirect;
2949         //biosC0[0x1c] = psxBios_PatchAOTable;
2950 //************** THE END ***************************************
2951 /**/
2952         base = 0x1000;
2953         size = sizeof(EvCB) * 32;
2954         Event = (void *)&psxR[base]; base += size * 6;
2955         memset(Event, 0, size * 6);
2956         HwEV = Event;
2957         EvEV = Event + 32;
2958         RcEV = Event + 32 * 2;
2959         UeEV = Event + 32 * 3;
2960         SwEV = Event + 32 * 4;
2961         ThEV = Event + 32 * 5;
2962
2963         ptr = (u32 *)&psxM[0x0874]; // b0 table
2964         ptr[0] = SWAPu32(0x4c54 - 0x884);
2965
2966         ptr = (u32 *)&psxM[0x0674]; // c0 table
2967         ptr[6] = SWAPu32(0xc80);
2968
2969         memset(SysIntRP, 0, sizeof(SysIntRP));
2970         memset(Thread, 0, sizeof(Thread));
2971         Thread[0].status = 2; // main thread
2972
2973         jmp_int = NULL;
2974         pad_buf = NULL;
2975         pad_buf1 = NULL;
2976         pad_buf2 = NULL;
2977         pad_buf1len = pad_buf2len = 0;
2978         heap_addr = NULL;
2979         heap_end = NULL;
2980         heap_size = 0;
2981         CardState = -1;
2982         CurThread = 0;
2983         memset(FDesc, 0, sizeof(FDesc));
2984
2985         psxMu32ref(0x0150) = SWAPu32(0x160);
2986         psxMu32ref(0x0154) = SWAPu32(0x320);
2987         psxMu32ref(0x0160) = SWAPu32(0x248);
2988         strcpy((char *)&psxM[0x248], "bu");
2989 /*      psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
2990         psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
2991         psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
2992         psxMu32ref(0x09e0) = SWAPu32(0x43d0);
2993         psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
2994 */
2995         // opcode HLE
2996         psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
2997         psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
2998         psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
2999         psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
3000         psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
3001         psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
3002         psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
3003         psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
3004         psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
3005         psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
3006
3007         // initial stack pointer for BIOS interrupt
3008         psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
3009
3010         // initial RNG seed
3011         psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
3012
3013         // fonts
3014         len = 0x80000 - 0x66000;
3015         uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
3016         len = 0x80000 - 0x69d68;
3017         uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
3018
3019         // memory size 2 MB
3020         psxHu32ref(0x1060) = SWAPu32(0x00000b88);
3021
3022         hleSoftCall = FALSE;
3023 }
3024
3025 void psxBiosShutdown() {
3026 }
3027
3028 #define psxBios_PADpoll(pad) { \
3029         PAD##pad##_startPoll(pad); \
3030         pad_buf##pad[0] = 0; \
3031         pad_buf##pad[1] = PAD##pad##_poll(0x42); \
3032         if (!(pad_buf##pad[1] & 0x0f)) { \
3033                 bufcount = 32; \
3034         } else { \
3035                 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
3036         } \
3037         PAD##pad##_poll(0); \
3038         i = 2; \
3039         while (bufcount--) { \
3040                 pad_buf##pad[i++] = PAD##pad##_poll(0); \
3041         } \
3042 }
3043
3044 void biosInterrupt() {
3045         int i, bufcount;
3046
3047 //      if (psxHu32(0x1070) & 0x1) { // Vsync
3048                 if (pad_buf != NULL) {
3049                         u32 *buf = (u32*)pad_buf;
3050
3051                         if (!Config.UseNet) {
3052                                 PAD1_startPoll(1);
3053                                 if (PAD1_poll(0x42) == 0x23) {
3054                                         PAD1_poll(0);
3055                                         *buf = PAD1_poll(0) << 8;
3056                                         *buf |= PAD1_poll(0);
3057                                         PAD1_poll(0);
3058                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
3059                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
3060                                 } else {
3061                                         PAD1_poll(0);
3062                                         *buf = PAD1_poll(0) << 8;
3063                                         *buf|= PAD1_poll(0);
3064                                 }
3065
3066                                 PAD2_startPoll(2);
3067                                 if (PAD2_poll(0x42) == 0x23) {
3068                                         PAD2_poll(0);
3069                                         *buf |= PAD2_poll(0) << 24;
3070                                         *buf |= PAD2_poll(0) << 16;
3071                                         PAD2_poll(0);
3072                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
3073                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
3074                                 } else {
3075                                         PAD2_poll(0);
3076                                         *buf |= PAD2_poll(0) << 24;
3077                                         *buf |= PAD2_poll(0) << 16;
3078                                 }
3079                         } else {
3080                                 u16 data;
3081
3082                                 PAD1_startPoll(1);
3083                                 PAD1_poll(0x42);
3084                                 PAD1_poll(0);
3085                                 data = PAD1_poll(0) << 8;
3086                                 data |= PAD1_poll(0);
3087
3088                                 if (NET_sendPadData(&data, 2) == -1)
3089                                         netError();
3090
3091                                 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
3092                                         netError();
3093                                 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3094                                         netError();
3095                         }
3096                 }
3097                 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3098                         psxBios_PADpoll(1);
3099
3100                         if (NET_sendPadData(pad_buf1, i) == -1)
3101                                 netError();
3102
3103                         if (NET_recvPadData(pad_buf1, 1) == -1)
3104                                 netError();
3105                         if (NET_recvPadData(pad_buf2, 2) == -1)
3106                                 netError();
3107                 } else {
3108                         if (pad_buf1) {
3109                                 psxBios_PADpoll(1);
3110                         }
3111
3112                         if (pad_buf2) {
3113                                 psxBios_PADpoll(2);
3114                         }
3115                 }
3116
3117         if (psxHu32(0x1070) & 0x1) { // Vsync
3118                 if (RcEV[3][1].status == EvStACTIVE) {
3119                         softCall(RcEV[3][1].fhandler);
3120 //                      hwWrite32(0x1f801070, ~(1));
3121                 }
3122         }
3123
3124         if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3125                 int i;
3126
3127                 for (i = 0; i < 3; i++) {
3128                         if (psxHu32(0x1070) & (1 << (i + 4))) {
3129                                 if (RcEV[i][1].status == EvStACTIVE) {
3130                                         softCall(RcEV[i][1].fhandler);
3131                                 }
3132                                 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3133                         }
3134                 }
3135         }
3136 }
3137
3138 void psxBiosException() {
3139         int i;
3140
3141         switch (psxRegs.CP0.n.Cause & 0x3c) {
3142                 case 0x00: // Interrupt
3143 #ifdef PSXCPU_LOG
3144 //                      PSXCPU_LOG("interrupt\n");
3145 #endif
3146                         SaveRegs();
3147
3148                         sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3149
3150                         biosInterrupt();
3151
3152                         for (i = 0; i < 8; i++) {
3153                                 if (SysIntRP[i]) {
3154                                         u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3155
3156                                         s0 = queue[2];
3157                                         softCall(queue[1]);
3158                                 }
3159                         }
3160
3161                         if (jmp_int != NULL) {
3162                                 int i;
3163
3164                                 psxHwWrite32(0x1f801070, 0xffffffff);
3165
3166                                 ra = jmp_int[0];
3167                                 sp = jmp_int[1];
3168                                 fp = jmp_int[2];
3169                                 for (i = 0; i < 8; i++) // s0-s7
3170                                          psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3171                                 gp = jmp_int[11];
3172
3173                                 v0 = 1;
3174                                 pc0 = ra;
3175                                 return;
3176                         }
3177                         psxHwWrite16(0x1f801070, 0);
3178                         break;
3179
3180                 case 0x20: // Syscall
3181 #ifdef PSXCPU_LOG
3182                         PSXCPU_LOG("syscall exp %x\n", a0);
3183 #endif
3184                         switch (a0) {
3185                                 case 1: // EnterCritical - disable irq's
3186                                         /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3187                                         v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3188                                         psxRegs.CP0.n.Status &= ~0x404;
3189                                         break;
3190
3191                                 case 2: // ExitCritical - enable irq's
3192                                         psxRegs.CP0.n.Status |= 0x404;
3193                                         break;
3194                         }
3195                         pc0 = psxRegs.CP0.n.EPC + 4;
3196
3197                         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3198                                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3199                         return;
3200
3201                 default:
3202 #ifdef PSXCPU_LOG
3203                         PSXCPU_LOG("unknown bios exception!\n");
3204 #endif
3205                         break;
3206         }
3207
3208         pc0 = psxRegs.CP0.n.EPC;
3209         if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3210
3211         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3212                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3213 }
3214
3215 #define bfreeze(ptr, size) { \
3216         if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3217         if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3218         base += size; \
3219 }
3220
3221 #define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3222 #define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3223
3224 #define bfreezepsxMptr(ptr, type) { \
3225         if (Mode == 1) { \
3226                 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3227                 else psxRu32ref(base) = 0; \
3228         } else { \
3229                 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3230                 else (ptr) = NULL; \
3231         } \
3232         base += sizeof(u32); \
3233 }
3234
3235 void psxBiosFreeze(int Mode) {
3236         u32 base = 0x40000;
3237
3238         bfreezepsxMptr(jmp_int, u32);
3239         bfreezepsxMptr(pad_buf, int);
3240         bfreezepsxMptr(pad_buf1, char);
3241         bfreezepsxMptr(pad_buf2, char);
3242         bfreezepsxMptr(heap_addr, u32);
3243         bfreezel(&pad_buf1len);
3244         bfreezel(&pad_buf2len);
3245         bfreezes(regs);
3246         bfreezes(SysIntRP);
3247         bfreezel(&CardState);
3248         bfreezes(Thread);
3249         bfreezel(&CurThread);
3250         bfreezes(FDesc);
3251         bfreezel(&card_active_chan);
3252 }