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         if (a0 == 0)
 670         {
 671                 pc0 = ra;
 672                 return;
 673         }
 674         while (*p++) v0++;
 675         pc0 = ra;
 676 }
 677
 678 void psxBios_index() { // 0x1c
 679         char *p = (char *)Ra0;
 680         if (a0 == 0)
 681         {
 682                 v0 = 0;
 683                 pc0 = ra;
 684                 return;
 685         }
 686
 687         do {
 688                 if (*p == a1) {
 689                         v0 = a0 + (p - (char *)Ra0);
 690                         pc0 = ra;
 691                         return;
 692                 }
 693         } while (*p++ != '\0');
 694
 695         v0 = 0; pc0 = ra;
 696 }
 697
 698 void psxBios_rindex() { // 0x1d
 699         char *p = (char *)Ra0;
 700
 701         v0 = 0;
 702         if (a0 == 0)
 703         {
 704                 pc0 = ra;
 705                 return;
 706         }
 707         do {
 708                 if (*p == a1)
 709                         v0 = a0 + (p - (char *)Ra0);
 710         } while (*p++ != '\0');
 711
 712         pc0 = ra;
 713 }
 714
 715 void psxBios_strchr() { // 0x1e
 716         psxBios_index();
 717 }
 718
 719 void psxBios_strrchr() { // 0x1f
 720         psxBios_rindex();
 721 }
 722
 723 void psxBios_strpbrk() { // 0x20
 724         char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
 725
 726         while ((c = *p1++) != '\0') {
 727                 for (scanp = p2; (sc = *scanp++) != '\0';) {
 728                         if (sc == c) {
 729                                 v0 = a0 + (p1 - 1 - (char *)Ra0);
 730                                 pc0 = ra;
 731                                 return;
 732                         }
 733                 }
 734         }
 735
 736         // BUG: return a0 instead of NULL if not found
 737         v0 = a0; pc0 = ra;
 738 }
 739
 740 void psxBios_strspn() { // 0x21
 741         char *p1, *p2;
 742
 743         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 744                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 745                 if (*p2 == '\0') break;
 746         }
 747
 748         v0 = p1 - (char *)Ra0; pc0 = ra;
 749 }
 750
 751 void psxBios_strcspn() { // 0x22
 752         char *p1, *p2;
 753
 754         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 755                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 756                 if (*p2 != '\0') break;
 757         }
 758
 759         v0 = p1 - (char *)Ra0; pc0 = ra;
 760 }
 761
 762 void psxBios_strtok() { // 0x23
 763         char *pcA0 = (char *)Ra0;
 764         char *pcRet = strtok(pcA0, (char *)Ra1);
 765         if (pcRet)
 766                 v0 = a0 + pcRet - pcA0;
 767         else
 768                 v0 = 0;
 769         pc0 = ra;
 770 }
 771
 772 void psxBios_strstr() { // 0x24
 773         char *p = (char *)Ra0, *p1, *p2;
 774
 775         while (*p != '\0') {
 776                 p1 = p;
 777                 p2 = (char *)Ra1;
 778
 779                 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
 780                         p1++; p2++;
 781                 }
 782
 783                 if (*p2 == '\0') {
 784                         v0 = a0 + (p - (char *)Ra0);
 785                         pc0 = ra;
 786                         return;
 787                 }
 788
 789                 p++;
 790         }
 791
 792         v0 = 0; pc0 = ra;
 793 }
 794
 795 void psxBios_toupper() { // 0x25
 796         v0 = (s8)(a0 & 0xff);
 797         if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
 798         pc0 = ra;
 799 }
 800
 801 void psxBios_tolower() { // 0x26
 802         v0 = (s8)(a0 & 0xff);
 803         if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
 804         pc0 = ra;
 805 }
 806
 807 void psxBios_bcopy() { // 0x27
 808         char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
 809         v0 = a0;
 810         if (a0 == 0 || a2 > 0x7FFFFFFF)
 811         {
 812                 pc0 = ra;
 813                 return;
 814         }
 815         while ((s32)a2-- > 0) *p1++ = *p2++;
 816         a2 = 0;
 817         pc0 = ra;
 818 }
 819
 820 void psxBios_bzero() { // 0x28
 821         char *p = (char *)Ra0;
 822         v0 = a0;
 823         /* Same as memset here (See memset below) */
 824         if (a1 > 0x7FFFFFFF || a1 == 0)
 825         {
 826                 v0 = 0;
 827                 pc0 = ra;
 828                 return;
 829         }
 830         else if (a0 == 0)
 831         {
 832                 pc0 = ra;
 833                 return;
 834         }
 835         while ((s32)a1-- > 0) *p++ = '\0';
 836         a1 = 0;
 837         pc0 = ra;
 838 }
 839
 840 void psxBios_bcmp() { // 0x29
 841         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 842
 843         if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
 844
 845         while ((s32)a2-- > 0) {
 846                 if (*p1++ != *p2++) {
 847                         v0 = *p1 - *p2; // BUG: compare the NEXT byte
 848                         pc0 = ra;
 849                         return;
 850                 }
 851         }
 852
 853         v0 = 0; pc0 = ra;
 854 }
 855
 856 void psxBios_memcpy() { // 0x2a
 857         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 858         s32 n=0;
 859         v0 = a0;
 860         if (a0 == 0 || a2 > 0x7FFFFFFF)
 861         {
 862                 pc0 = ra;
 863                 return;
 864         }
 865         while ((s32)a2-- > 0) {
 866                 n++;
 867                 *p1++ = *p2++;
 868         }
 869         a2 = 0;
 870         pc0 = ra;
 871 }
 872
 873 void psxBios_memset() { // 0x2b
 874         char *p = (char *)Ra0;
 875         v0 = a0;
 876         if (a2 > 0x7FFFFFFF || a2 == 0)
 877         {
 878                 v0 = 0;
 879                 pc0 = ra;
 880                 return;
 881         }
 882         if (a0 == 0)
 883         {
 884                 pc0 = ra;
 885                 return;
 886         }
 887         while ((s32)a2-- > 0) *p++ = (char)a1;
 888         a2 = 0;
 889         v0 = a0; pc0 = ra;
 890 }
 891
 892 void psxBios_memmove() { // 0x2c
 893         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 894         v0 = a0;
 895         if (a0 == 0 || a2 > 0x7FFFFFFF)
 896         {
 897                 pc0 = ra;
 898                 return;
 899         }
 900         if (p2 <= p1 && p2 + a2 > p1) {
 901                 a2++; // BUG: copy one more byte here
 902                 p1 += a2;
 903                 p2 += a2;
 904                 while ((s32)a2-- > 0) *--p1 = *--p2;
 905         } else {
 906                 while ((s32)a2-- > 0) *p1++ = *p2++;
 907         }
 908         pc0 = ra;
 909 }
 910
 911 void psxBios_memcmp() { // 0x2d
 912         psxBios_bcmp();
 913 }
 914
 915 void psxBios_memchr() { // 0x2e
 916         char *p = (char *)Ra0;
 917
 918         while ((s32)a2-- > 0) {
 919                 if (*p++ != (s8)a1) continue;
 920                 v0 = a0 + (p - (char *)Ra0 - 1);
 921                 pc0 = ra;
 922                 return;
 923         }
 924
 925         v0 = 0; pc0 = ra;
 926 }
 927
 928 void psxBios_rand() { // 0x2f
 929         u32 s = psxMu32(0x9010) * 1103515245 + 12345;
 930         v0 = (s >> 16) & 0x7fff;
 931         psxMu32ref(0x9010) = SWAPu32(s);
 932         pc0 = ra;
 933 }
 934
 935 void psxBios_srand() { // 0x30
 936         psxMu32ref(0x9010) = SWAPu32(a0);
 937         pc0 = ra;
 938 }
 939
 940 static u32 qscmpfunc, qswidth;
 941
 942 static inline int qscmp(char *a, char *b) {
 943         u32 sa0 = a0;
 944
 945         a0 = sa0 + (a - (char *)PSXM(sa0));
 946         a1 = sa0 + (b - (char *)PSXM(sa0));
 947
 948         softCall2(qscmpfunc);
 949
 950         a0 = sa0;
 951         return (s32)v0;
 952 }
 953
 954 static inline void qexchange(char *i, char *j) {
 955         char t;
 956         int n = qswidth;
 957
 958         do {
 959                 t = *i;
 960                 *i++ = *j;
 961                 *j++ = t;
 962         } while (--n);
 963 }
 964
 965 static inline void q3exchange(char *i, char *j, char *k) {
 966         char t;
 967         int n = qswidth;
 968
 969         do {
 970                 t = *i;
 971                 *i++ = *k;
 972                 *k++ = *j;
 973                 *j++ = t;
 974         } while (--n);
 975 }
 976
 977 static void qsort_main(char *a, char *l) {
 978         char *i, *j, *lp, *hp;
 979         int c;
 980         unsigned int n;
 981
 982 start:
 983         if ((n = l - a) <= qswidth)
 984                 return;
 985         n = qswidth * (n / (2 * qswidth));
 986         hp = lp = a + n;
 987         i = a;
 988         j = l - qswidth;
 989         while (TRUE) {
 990                 if (i < lp) {
 991                         if ((c = qscmp(i, lp)) == 0) {
 992                                 qexchange(i, lp -= qswidth);
 993                                 continue;
 994                         }
 995                         if (c < 0) {
 996                                 i += qswidth;
 997                                 continue;
 998                         }
 999                 }
1000
1001 loop:
1002                 if (j > hp) {
1003                         if ((c = qscmp(hp, j)) == 0) {
1004                                 qexchange(hp += qswidth, j);
1005                                 goto loop;
1006                         }
1007                         if (c > 0) {
1008                                 if (i == lp) {
1009                                         q3exchange(i, hp += qswidth, j);
1010                                         i = lp += qswidth;
1011                                         goto loop;
1012                                 }
1013                                 qexchange(i, j);
1014                                 j -= qswidth;
1015                                 i += qswidth;
1016                                 continue;
1017                         }
1018                         j -= qswidth;
1019                         goto loop;
1020                 }
1021
1022                 if (i == lp) {
1023                         if (lp - a >= l - hp) {
1024                                 qsort_main(hp + qswidth, l);
1025                                 l = lp;
1026                         } else {
1027                                 qsort_main(a, lp);
1028                                 a = hp + qswidth;
1029                         }
1030                         goto start;
1031                 }
1032
1033                 q3exchange(j, lp -= qswidth, i);
1034                 j = hp -= qswidth;
1035         }
1036 }
1037
1038 void psxBios_qsort() { // 0x31
1039         qswidth = a2;
1040         qscmpfunc = a3;
1041         qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
1042
1043         pc0 = ra;
1044 }
1045
1046 void psxBios_malloc() { // 0x33
1047         unsigned int *chunk, *newchunk = NULL;
1048         unsigned int dsize = 0, csize, cstat;
1049         int colflag;
1050 #ifdef PSXBIOS_LOG
1051         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
1052 #endif
1053         if (!a0 || (!heap_size || !heap_addr)) {
1054                 v0 = 0;
1055                 pc0 = ra;
1056                 return;
1057         }
1058
1059         // scan through heap and combine free chunks of space
1060         chunk = heap_addr;
1061         colflag = 0;
1062         while(chunk < heap_end) {
1063                 // get size and status of actual chunk
1064                 csize = ((u32)*chunk) & 0xfffffffc;
1065                 cstat = ((u32)*chunk) & 1;
1066
1067                 // most probably broken heap descriptor
1068                 // this fixes Burning Road
1069                 if (*chunk == 0) {
1070                         newchunk = chunk;
1071                         dsize = ((uptr)heap_end - (uptr)chunk) - 4;
1072                         colflag = 1;
1073                         break;
1074                 }
1075
1076                 // it's a free chunk
1077                 if(cstat == 1) {
1078                         if(colflag == 0) {
1079                                 newchunk = chunk;
1080                                 dsize = csize;
1081                                 colflag = 1;                    // let's begin a new collection of free memory
1082                         }
1083                         else dsize += (csize+4);        // add the new size including header
1084                 }
1085                 // not a free chunk: did we start a collection ?
1086                 else {
1087                         if(colflag == 1) {                      // collection is over
1088                                 colflag = 0;
1089                                 *newchunk = SWAP32(dsize | 1);
1090                         }
1091                 }
1092
1093                 // next chunk
1094                 chunk = (u32*)((uptr)chunk + csize + 4);
1095         }
1096         // if neccessary free memory on end of heap
1097         if (colflag == 1)
1098                 *newchunk = SWAP32(dsize | 1);
1099
1100         chunk = heap_addr;
1101         csize = ((u32)*chunk) & 0xfffffffc;
1102         cstat = ((u32)*chunk) & 1;
1103         dsize = (a0 + 3) & 0xfffffffc;
1104
1105         // exit on uninitialized heap
1106         if (chunk == NULL) {
1107                 printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
1108                 v0 = 0;
1109                 pc0 = ra;
1110                 return;
1111         }
1112
1113         // search an unused chunk that is big enough until the end of the heap
1114         while ((dsize > csize || cstat==0) && chunk < heap_end ) {
1115                 chunk = (u32*)((uptr)chunk + csize + 4);
1116
1117                         // catch out of memory
1118                         if(chunk >= heap_end) {
1119                                 printf("malloc %x,%x: Out of memory error!\n",
1120                                         v0, a0);
1121                                 v0 = 0; pc0 = ra;
1122                                 return;
1123                         }
1124
1125                 csize = ((u32)*chunk) & 0xfffffffc;
1126                 cstat = ((u32)*chunk) & 1;
1127         }
1128
1129         // allocate memory
1130         if(dsize == csize) {
1131                 // chunk has same size
1132                 *chunk &= 0xfffffffc;
1133         } else if (dsize > csize) {
1134                 v0 = 0; pc0 = ra;
1135                 return;
1136         } else {
1137                 // split free chunk
1138                 *chunk = SWAP32(dsize);
1139                 newchunk = (u32*)((uptr)chunk + dsize + 4);
1140                 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
1141         }
1142
1143         // return pointer to allocated memory
1144         v0 = ((uptr)chunk - (uptr)psxM) + 4;
1145         v0|= 0x80000000;
1146         //printf ("malloc %x,%x\n", v0, a0);
1147         pc0 = ra;
1148 }
1149
1150 void psxBios_free() { // 0x34
1151
1152 #ifdef PSXBIOS_LOG
1153         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1154 #endif
1155
1156         SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1157
1158         if (a0)
1159                 *(u32*)(Ra0-4) |= 1;    // set chunk to free
1160         pc0 = ra;
1161 }
1162
1163 void psxBios_calloc() { // 0x37
1164         void *pv0;
1165 #ifdef PSXBIOS_LOG
1166         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1167 #endif
1168
1169         a0 = a0 * a1;
1170         psxBios_malloc();
1171         pv0 = Rv0;
1172         if (pv0)
1173                 memset(pv0, 0, a0);
1174 }
1175
1176 void psxBios_realloc() { // 0x38
1177         u32 block = a0;
1178         u32 size = a1;
1179 #ifdef PSXBIOS_LOG
1180         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1181 #endif
1182
1183         a0 = block;
1184         /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1185         if (block == 0)
1186         {
1187                 psxBios_malloc();
1188         }
1189         /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1190         else if (size == 0)
1191         {
1192                 psxBios_free();
1193         }
1194         /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1195         /* Note that it is not quite implemented this way here. */
1196         else
1197         {
1198                 psxBios_free();
1199                 a0 = size;
1200                 psxBios_malloc();
1201         }
1202 }
1203
1204
1205 /* InitHeap(void *block , int n) */
1206 void psxBios_InitHeap() { // 0x39
1207         unsigned int size;
1208
1209 #ifdef PSXBIOS_LOG
1210         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1211 #endif
1212
1213         if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1214         else size = a1;
1215
1216         size &= 0xfffffffc;
1217
1218         heap_addr = (u32 *)Ra0;
1219         heap_end = (u32 *)((u8 *)heap_addr + size);
1220         *heap_addr = SWAP32(size | 1);
1221
1222         SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
1223
1224         pc0 = ra;
1225 }
1226
1227 void psxBios_getchar() { //0x3b
1228         v0 = getchar(); pc0 = ra;
1229 }
1230
1231 void psxBios_printf() { // 0x3f
1232         char tmp[1024];
1233         char tmp2[1024];
1234         u32 save[4];
1235         char *ptmp = tmp;
1236         int n=1, i=0, j;
1237         void *psp;
1238
1239         psp = PSXM(sp);
1240         if (psp) {
1241                 memcpy(save, psp, 4 * 4);
1242                 psxMu32ref(sp) = SWAP32((u32)a0);
1243                 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1244                 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1245                 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1246         }
1247
1248         while (Ra0[i]) {
1249                 switch (Ra0[i]) {
1250                         case '%':
1251                                 j = 0;
1252                                 tmp2[j++] = '%';
1253 _start:
1254                                 switch (Ra0[++i]) {
1255                                         case '.':
1256                                         case 'l':
1257                                                 tmp2[j++] = Ra0[i]; goto _start;
1258                                         default:
1259                                                 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1260                                                         tmp2[j++] = Ra0[i];
1261                                                         goto _start;
1262                                                 }
1263                                                 break;
1264                                 }
1265                                 tmp2[j++] = Ra0[i];
1266                                 tmp2[j] = 0;
1267
1268                                 switch (Ra0[i]) {
1269                                         case 'f': case 'F':
1270                                                 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1271                                         case 'a': case 'A':
1272                                         case 'e': case 'E':
1273                                         case 'g': case 'G':
1274                                                 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1275                                         case 'p':
1276                                         case 'i': case 'u':
1277                                         case 'd': case 'D':
1278                                         case 'o': case 'O':
1279                                         case 'x': case 'X':
1280                                                 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1281                                         case 'c':
1282                                                 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1283                                         case 's':
1284                                                 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1285                                         case '%':
1286                                                 *ptmp++ = Ra0[i]; break;
1287                                 }
1288                                 i++;
1289                                 break;
1290                         default:
1291                                 *ptmp++ = Ra0[i++];
1292                 }
1293         }
1294         *ptmp = 0;
1295
1296         if (psp)
1297                 memcpy(psp, save, 4 * 4);
1298
1299         SysPrintf("%s", tmp);
1300
1301         pc0 = ra;
1302 }
1303
1304 void psxBios_format() { // 0x41
1305         if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1306         {
1307                 CreateMcd(Config.Mcd1);
1308                 LoadMcd(1, Config.Mcd1);
1309                 v0 = 1;
1310         }
1311         else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1312         {
1313                 CreateMcd(Config.Mcd2);
1314                 LoadMcd(2, Config.Mcd2);
1315                 v0 = 1;
1316         }
1317         else
1318         {
1319                 v0 = 0;
1320         }
1321         pc0 = ra;
1322 }
1323
1324 /*
1325  *      long Load(char *name, struct EXEC *header);
1326  */
1327
1328 void psxBios_Load() { // 0x42
1329         EXE_HEADER eheader;
1330         void *pa1;
1331
1332 #ifdef PSXBIOS_LOG
1333         PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1334 #endif
1335
1336         pa1 = Ra1;
1337         if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1338                 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
1339                 v0 = 1;
1340         } else v0 = 0;
1341
1342         pc0 = ra;
1343 }
1344
1345 /*
1346  *      int Exec(struct EXEC *header , int argc , char **argv);
1347  */
1348
1349 void psxBios_Exec() { // 43
1350         EXEC *header = (EXEC*)Ra0;
1351         u32 tmp;
1352
1353 #ifdef PSXBIOS_LOG
1354         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1355 #endif
1356
1357         header->_sp = sp;
1358         header->_fp = fp;
1359         header->_sp = sp;
1360         header->_gp = gp;
1361         header->ret = ra;
1362         header->base = s0;
1363
1364         if (header->S_addr != 0) {
1365                 tmp = header->S_addr + header->s_size;
1366                 sp = tmp;
1367                 fp = sp;
1368         }
1369
1370         gp = header->gp0;
1371
1372         s0 = a0;
1373
1374         a0 = a1;
1375         a1 = a2;
1376
1377         ra = 0x8000;
1378         pc0 = header->_pc0;
1379 }
1380
1381 void psxBios_FlushCache() { // 44
1382 #ifdef PSXBIOS_LOG
1383         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1384 #endif
1385
1386         pc0 = ra;
1387 }
1388
1389 void psxBios_GPU_dw() { // 0x46
1390         int size;
1391         s32 *ptr;
1392
1393 #ifdef PSXBIOS_LOG
1394         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1395 #endif
1396
1397         GPU_writeData(0xa0000000);
1398         GPU_writeData((a1<<16)|(a0&0xffff));
1399         GPU_writeData((a3<<16)|(a2&0xffff));
1400         size = (a2*a3+1)/2;
1401         ptr = (s32*)PSXM(Rsp[4]);  //that is correct?
1402         do {
1403                 GPU_writeData(SWAP32(*ptr));
1404                 ptr++;
1405         } while(--size);
1406
1407         pc0 = ra;
1408 }
1409
1410 void psxBios_mem2vram() { // 0x47
1411         int size;
1412
1413         GPU_writeData(0xa0000000);
1414         GPU_writeData((a1<<16)|(a0&0xffff));
1415         GPU_writeData((a3<<16)|(a2&0xffff));
1416         size = (a2*a3+1)/2;
1417         GPU_writeStatus(0x04000002);
1418         psxHwWrite32(0x1f8010f4,0);
1419         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1420         psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1421         psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1422         psxHwWrite32(0x1f8010a8,0x01000201);
1423
1424         pc0 = ra;
1425 }
1426
1427 void psxBios_SendGPU() { // 0x48
1428         GPU_writeStatus(a0);
1429         gpuSyncPluginSR();
1430         pc0 = ra;
1431 }
1432
1433 void psxBios_GPU_cw() { // 0x49
1434         GPU_writeData(a0);
1435         pc0 = ra;
1436 }
1437
1438 void psxBios_GPU_cwb() { // 0x4a
1439         s32 *ptr = (s32*)Ra0;
1440         int size = a1;
1441         while(size--) {
1442                 GPU_writeData(SWAP32(*ptr));
1443                 ptr++;
1444         }
1445
1446         pc0 = ra;
1447 }
1448
1449 void psxBios_GPU_SendPackets() { //4b:
1450         GPU_writeStatus(0x04000002);
1451         psxHwWrite32(0x1f8010f4,0);
1452         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1453         psxHwWrite32(0x1f8010a0,a0);
1454         psxHwWrite32(0x1f8010a4,0);
1455         psxHwWrite32(0x1f8010a8,0x010000401);
1456         pc0 = ra;
1457 }
1458
1459 void psxBios_sys_a0_4c() { // 0x4c GPU relate
1460         psxHwWrite32(0x1f8010a8,0x00000401);
1461         GPU_writeData(0x0400000);
1462         GPU_writeData(0x0200000);
1463         GPU_writeData(0x0100000);
1464         v0 = 0x1f801814;
1465         pc0 = ra;
1466 }
1467
1468 void psxBios_GPU_GetGPUStatus() { // 0x4d
1469         v0 = GPU_readStatus();
1470         pc0 = ra;
1471 }
1472
1473 #undef s_addr
1474
1475 void psxBios_LoadExec() { // 51
1476         EXEC *header = (EXEC*)PSXM(0xf000);
1477         u32 s_addr, s_size;
1478
1479 #ifdef PSXBIOS_LOG
1480         PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1481 #endif
1482         s_addr = a1; s_size = a2;
1483
1484         a1 = 0xf000;
1485         psxBios_Load();
1486
1487         header->S_addr = s_addr;
1488         header->s_size = s_size;
1489
1490         a0 = 0xf000; a1 = 0; a2 = 0;
1491         psxBios_Exec();
1492 }
1493
1494 void psxBios__bu_init() { // 70
1495 #ifdef PSXBIOS_LOG
1496         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1497 #endif
1498
1499         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1500         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1501
1502         pc0 = ra;
1503 }
1504
1505 void psxBios__96_init() { // 71
1506 #ifdef PSXBIOS_LOG
1507         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1508 #endif
1509
1510         pc0 = ra;
1511 }
1512
1513 void psxBios__96_remove() { // 72
1514 #ifdef PSXBIOS_LOG
1515         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1516 #endif
1517
1518         pc0 = ra;
1519 }
1520
1521 void psxBios_SetMem() { // 9f
1522         u32 new = psxHu32(0x1060);
1523
1524 #ifdef PSXBIOS_LOG
1525         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1526 #endif
1527
1528         switch(a0) {
1529                 case 2:
1530                         psxHu32ref(0x1060) = SWAP32(new);
1531                         psxMu32ref(0x060) = a0;
1532                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1533                         break;
1534
1535                 case 8:
1536                         psxHu32ref(0x1060) = SWAP32(new | 0x300);
1537                         psxMu32ref(0x060) = a0;
1538                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1539
1540                 default:
1541                         SysPrintf("Effective memory must be 2/8 MBytes\n");
1542                 break;
1543         }
1544
1545         pc0 = ra;
1546 }
1547
1548 void psxBios__card_info() { // ab
1549 #ifdef PSXBIOS_LOG
1550         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1551 #endif
1552         u32 ret;
1553         card_active_chan = a0;
1554
1555         switch (card_active_chan)
1556         {
1557         case 0x00: case 0x01: case 0x02: case 0x03:
1558                 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1559                 break;
1560         case 0x10: case 0x11: case 0x12: case 0x13:
1561                 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1562                 break;
1563         default:
1564 #ifdef PSXBIOS_LOG
1565                 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1566 #endif
1567                 ret = 0x11;
1568                 break;
1569         }
1570
1571 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1572 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1573         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1574         DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
1575
1576         v0 = 1; pc0 = ra;
1577 }
1578
1579 void psxBios__card_load() { // ac
1580 #ifdef PSXBIOS_LOG
1581         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1582 #endif
1583
1584         card_active_chan = a0;
1585
1586 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1587         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1588
1589         v0 = 1; pc0 = ra;
1590 }
1591
1592 /* System calls B0 */
1593
1594 void psxBios_SetRCnt() { // 02
1595 #ifdef PSXBIOS_LOG
1596         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1597 #endif
1598
1599         a0&= 0x3;
1600         if (a0 != 3) {
1601                 u32 mode=0;
1602
1603                 psxRcntWtarget(a0, a1);
1604                 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1605                 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1606                 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1607                 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1608                 else         { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1609
1610                 psxRcntWmode(a0, mode);
1611         }
1612         pc0 = ra;
1613 }
1614
1615 void psxBios_GetRCnt() { // 03
1616 #ifdef PSXBIOS_LOG
1617         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1618 #endif
1619
1620         a0&= 0x3;
1621         if (a0 != 3) v0 = psxRcntRcount(a0);
1622         else v0 = 0;
1623         pc0 = ra;
1624 }
1625
1626 void psxBios_StartRCnt() { // 04
1627 #ifdef PSXBIOS_LOG
1628         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1629 #endif
1630
1631         a0&= 0x3;
1632         if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1633         else psxHu32ref(0x1074)|= SWAPu32(0x1);
1634         v0 = 1; pc0 = ra;
1635 }
1636
1637 void psxBios_StopRCnt() { // 05
1638 #ifdef PSXBIOS_LOG
1639         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1640 #endif
1641
1642         a0&= 0x3;
1643         if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1644         else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1645         pc0 = ra;
1646 }
1647
1648 void psxBios_ResetRCnt() { // 06
1649 #ifdef PSXBIOS_LOG
1650         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1651 #endif
1652
1653         a0&= 0x3;
1654         if (a0 != 3) {
1655                 psxRcntWmode(a0, 0);
1656                 psxRcntWtarget(a0, 0);
1657                 psxRcntWcount(a0, 0);
1658         }
1659         pc0 = ra;
1660 }
1661
1662
1663 /* gets ev for use with Event */
1664 #define GetEv() \
1665         ev = (a0 >> 24) & 0xf; \
1666         if (ev == 0xf) ev = 0x5; \
1667         ev*= 32; \
1668         ev+= a0&0x1f;
1669
1670 /* gets spec for use with Event */
1671 #define GetSpec() \
1672         spec = 0; \
1673         switch (a1) { \
1674                 case 0x0301: spec = 16; break; \
1675                 case 0x0302: spec = 17; break; \
1676                 default: \
1677                         for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1678                         break; \
1679         }
1680
1681 void psxBios_DeliverEvent() { // 07
1682         int ev, spec;
1683         int i;
1684
1685         GetEv();
1686         GetSpec();
1687
1688 #ifdef PSXBIOS_LOG
1689         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1690 #endif
1691
1692         DeliverEvent(ev, spec);
1693
1694         pc0 = ra;
1695 }
1696
1697 void psxBios_OpenEvent() { // 08
1698         int ev, spec;
1699         int i;
1700
1701         GetEv();
1702         GetSpec();
1703
1704 #ifdef PSXBIOS_LOG
1705         PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1706 #endif
1707
1708         Event[ev][spec].status = EvStWAIT;
1709         Event[ev][spec].mode = a2;
1710         Event[ev][spec].fhandler = a3;
1711
1712         v0 = ev | (spec << 8);
1713         pc0 = ra;
1714 }
1715
1716 void psxBios_CloseEvent() { // 09
1717         int ev, spec;
1718
1719         ev   = a0 & 0xff;
1720         spec = (a0 >> 8) & 0xff;
1721
1722 #ifdef PSXBIOS_LOG
1723         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1724 #endif
1725
1726         Event[ev][spec].status = EvStUNUSED;
1727
1728         v0 = 1; pc0 = ra;
1729 }
1730
1731 void psxBios_WaitEvent() { // 0a
1732         int ev, spec;
1733
1734         ev   = a0 & 0xff;
1735         spec = (a0 >> 8) & 0xff;
1736 #ifdef PSXBIOS_LOG
1737         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1738 #endif
1739         if (Event[ev][spec].status == EvStUNUSED)
1740         {
1741                 v0 = 0;
1742                 pc0 = ra;
1743                 return;
1744         }
1745
1746         if (Event[ev][spec].status == EvStALREADY)
1747         {
1748                 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1749                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1750                 v0 = 1;
1751                 pc0 = ra;
1752                 return;
1753         }
1754
1755         v0 = 0;
1756         pc0 = ra;
1757 }
1758
1759 void psxBios_TestEvent() { // 0b
1760         int ev, spec;
1761
1762         ev   = a0 & 0xff;
1763         spec = (a0 >> 8) & 0xff;
1764
1765         if (Event[ev][spec].status == EvStALREADY)
1766         {
1767                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1768                 v0 = 1;
1769         }
1770         else
1771         {
1772                 v0 = 0;
1773         }
1774
1775 #ifdef PSXBIOS_LOG
1776         PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1777 #endif
1778
1779         pc0 = ra;
1780 }
1781
1782 void psxBios_EnableEvent() { // 0c
1783         int ev, spec;
1784
1785         ev   = a0 & 0xff;
1786         spec = (a0 >> 8) & 0xff;
1787
1788 #ifdef PSXBIOS_LOG
1789         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1790 #endif
1791
1792         Event[ev][spec].status = EvStACTIVE;
1793
1794         v0 = 1; pc0 = ra;
1795 }
1796
1797 void psxBios_DisableEvent() { // 0d
1798         int ev, spec;
1799
1800         ev   = a0 & 0xff;
1801         spec = (a0 >> 8) & 0xff;
1802
1803 #ifdef PSXBIOS_LOG
1804         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1805 #endif
1806
1807         Event[ev][spec].status = EvStWAIT;
1808
1809         v0 = 1; pc0 = ra;
1810 }
1811
1812 /*
1813  *      long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1814  */
1815
1816 void psxBios_OpenTh() { // 0e
1817         int th;
1818
1819         for (th=1; th<8; th++)
1820         {
1821                 if (Thread[th].status == 0) break;
1822
1823         }
1824         if (th == 8) {
1825                 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1826                 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1827 #ifdef PSXBIOS_LOG
1828                 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1829 #endif
1830                 v0 = 0xffffffff;
1831                 pc0 = ra;
1832                 return;
1833         }
1834 #ifdef PSXBIOS_LOG
1835         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1836 #endif
1837
1838         Thread[th].status = 1;
1839         Thread[th].func    = a0;
1840         Thread[th].reg[29] = a1;
1841         Thread[th].reg[28] = a2;
1842
1843         v0 = th; pc0 = ra;
1844 }
1845
1846 /*
1847  *      int CloseTh(long thread);
1848  */
1849
1850 void psxBios_CloseTh() { // 0f
1851         int th = a0 & 0xff;
1852
1853 #ifdef PSXBIOS_LOG
1854         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1855 #endif
1856
1857         if (Thread[th].status == 0) {
1858                 v0 = 0;
1859         } else {
1860                 Thread[th].status = 0;
1861                 v0 = 1;
1862         }
1863
1864         pc0 = ra;
1865 }
1866
1867 /*
1868  *      int ChangeTh(long thread);
1869  */
1870
1871 void psxBios_ChangeTh() { // 10
1872         int th = a0 & 0xff;
1873
1874 #ifdef PSXBIOS_LOG
1875 //      PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1876 #endif
1877
1878         if (Thread[th].status == 0 || CurThread == th) {
1879                 v0 = 0;
1880
1881                 pc0 = ra;
1882         } else {
1883                 v0 = 1;
1884
1885                 if (Thread[CurThread].status == 2) {
1886                         Thread[CurThread].status = 1;
1887                         Thread[CurThread].func = ra;
1888                         memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1889                 }
1890
1891                 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1892                 pc0 = Thread[th].func;
1893                 Thread[th].status = 2;
1894                 CurThread = th;
1895         }
1896 }
1897
1898 void psxBios_InitPAD() { // 0x12
1899 #ifdef PSXBIOS_LOG
1900         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1901 #endif
1902
1903         pad_buf1 = (char*)Ra0;
1904         pad_buf1len = a1;
1905         pad_buf2 = (char*)Ra2;
1906         pad_buf2len = a3;
1907
1908         v0 = 1; pc0 = ra;
1909 }
1910
1911 void psxBios_StartPAD() { // 13
1912 #ifdef PSXBIOS_LOG
1913         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1914 #endif
1915
1916         psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1917         psxRegs.CP0.n.Status |= 0x401;
1918         pc0 = ra;
1919 }
1920
1921 void psxBios_StopPAD() { // 14
1922 #ifdef PSXBIOS_LOG
1923         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1924 #endif
1925         if (pad_buf == 0){
1926         pad_buf1 = NULL;
1927         pad_buf2 = NULL;
1928         }
1929         pc0 = ra;
1930 }
1931
1932 void psxBios_PAD_init() { // 15
1933 #ifdef PSXBIOS_LOG
1934         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1935 #endif
1936         if (!(a0 == 0x20000000 || a0 == 0x20000001))
1937         {
1938                 v0 = 0;
1939                 pc0 = ra;
1940                 return;
1941         }
1942         psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1943         pad_buf = (int *)Ra1;
1944         *pad_buf = -1;
1945         psxRegs.CP0.n.Status |= 0x401;
1946         v0 = 2;
1947         pc0 = ra;
1948 }
1949
1950 void psxBios_PAD_dr() { // 16
1951 #ifdef PSXBIOS_LOG
1952         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1953 #endif
1954
1955         v0 = -1; pc0 = ra;
1956 }
1957
1958 void psxBios_ReturnFromException() { // 17
1959         LoadRegs();
1960
1961         pc0 = psxRegs.CP0.n.EPC;
1962         if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1963
1964         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1965                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1966 }
1967
1968 void psxBios_ResetEntryInt() { // 18
1969 #ifdef PSXBIOS_LOG
1970         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1971 #endif
1972
1973         jmp_int = NULL;
1974         pc0 = ra;
1975 }
1976
1977 void psxBios_HookEntryInt() { // 19
1978 #ifdef PSXBIOS_LOG
1979         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1980 #endif
1981
1982         jmp_int = (u32*)Ra0;
1983         pc0 = ra;
1984 }
1985
1986 void psxBios_UnDeliverEvent() { // 0x20
1987         int ev, spec;
1988         int i;
1989
1990         GetEv();
1991         GetSpec();
1992
1993 #ifdef PSXBIOS_LOG
1994         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1995 #endif
1996
1997         if (Event[ev][spec].status == EvStALREADY &&
1998                 Event[ev][spec].mode == EvMdNOINTR)
1999                 Event[ev][spec].status = EvStACTIVE;
2000
2001         pc0 = ra;
2002 }
2003
2004 char ffile[64], *pfile;
2005 int nfile;
2006 static void buopen(int mcd, u8 *ptr, u8 *cfg)
2007 {
2008         int i;
2009         u8 *fptr = ptr;
2010
2011         strcpy(FDesc[1 + mcd].name, Ra0+5);
2012         FDesc[1 + mcd].offset = 0;
2013         FDesc[1 + mcd].mode   = a1;
2014
2015         for (i=1; i<16; i++) {
2016                 fptr += 128;
2017                 if ((*fptr & 0xF0) != 0x50) continue;
2018                 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
2019                 FDesc[1 + mcd].mcfile = i;
2020                 SysPrintf("open %s\n", fptr+0xa);
2021                 v0 = 1 + mcd;
2022                 break;
2023         }
2024         if (a1 & 0x200 && v0 == -1) { /* FCREAT */
2025                 fptr = ptr;
2026                 for (i=1; i<16; i++) {
2027                         int j, xor, nblk = a1 >> 16;
2028                         u8 *pptr, *fptr2;
2029
2030                         fptr += 128;
2031                         if ((*fptr & 0xF0) != 0xa0) continue;
2032
2033                         FDesc[1 + mcd].mcfile = i;
2034                         fptr[0] = 0x51;
2035                         fptr[4] = 0x00;
2036                         fptr[5] = 0x20 * nblk;
2037                         fptr[6] = 0x00;
2038                         fptr[7] = 0x00;
2039                         strcpy(fptr+0xa, FDesc[1 + mcd].name);
2040                         pptr = fptr2 = fptr;
2041                         for(j=2; j<=nblk; j++) {
2042                                 int k;
2043                                 for(i++; i<16; i++) {
2044                                         fptr2 += 128;
2045
2046                                         memset(fptr2, 0, 128);
2047                                         fptr2[0] = j < nblk ? 0x52 : 0x53;
2048                                         pptr[8] = i - 1;
2049                                         pptr[9] = 0;
2050                                         for (k=0, xor=0; k<127; k++) xor^= pptr[k];
2051                                         pptr[127] = xor;
2052                                         pptr = fptr2;
2053                                         break;
2054                                 }
2055                                 /* shouldn't this return ENOSPC if i == 16? */
2056                         }
2057                         pptr[8] = pptr[9] = 0xff;
2058                         for (j=0, xor=0; j<127; j++) xor^= pptr[j];
2059                         pptr[127] = xor;
2060                         SysPrintf("openC %s %d\n", ptr, nblk);
2061                         v0 = 1 + mcd;
2062                         /* just go ahead and resave them all */
2063                         SaveMcd(cfg, ptr, 128, 128 * 15);
2064                         break;
2065                 }
2066                 /* shouldn't this return ENOSPC if i == 16? */
2067         }
2068 }
2069
2070 /*
2071  *      int open(char *name , int mode);
2072  */
2073
2074 void psxBios_open() { // 0x32
2075         int i;
2076         char *ptr;
2077         void *pa0 = Ra0;
2078
2079 #ifdef PSXBIOS_LOG
2080         PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
2081 #endif
2082
2083         v0 = -1;
2084
2085         if (pa0) {
2086                 if (!strncmp(pa0, "bu00", 4)) {
2087                         buopen(1, Mcd1Data, Config.Mcd1);
2088                 }
2089
2090                 if (!strncmp(pa0, "bu10", 4)) {
2091                         buopen(2, Mcd2Data, Config.Mcd2);
2092                 }
2093         }
2094
2095         pc0 = ra;
2096 }
2097
2098 /*
2099  *      int lseek(int fd , int offset , int whence);
2100  */
2101
2102 void psxBios_lseek() { // 0x33
2103 #ifdef PSXBIOS_LOG
2104         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2105 #endif
2106
2107         switch (a2) {
2108                 case 0: // SEEK_SET
2109                         FDesc[a0].offset = a1;
2110                         v0 = a1;
2111 //                      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2112 //                      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2113                         break;
2114
2115                 case 1: // SEEK_CUR
2116                         FDesc[a0].offset+= a1;
2117                         v0 = FDesc[a0].offset;
2118                         break;
2119         }
2120
2121         pc0 = ra;
2122 }
2123
2124
2125 /*
2126  *      int read(int fd , void *buf , int nbytes);
2127  */
2128
2129 void psxBios_read() { // 0x34
2130         char *ptr;
2131         void *pa1 = Ra1;
2132
2133 #ifdef PSXBIOS_LOG
2134         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2135 #endif
2136
2137         v0 = -1;
2138
2139         if (pa1) {
2140                 switch (a0) {
2141                         case 2: buread(pa1, 1, a2); break;
2142                         case 3: buread(pa1, 2, a2); break;
2143                 }
2144         }
2145
2146         pc0 = ra;
2147 }
2148
2149 /*
2150  *      int write(int fd , void *buf , int nbytes);
2151  */
2152
2153 void psxBios_write() { // 0x35/0x03
2154         char *ptr;
2155         void *pa1 = Ra1;
2156
2157 #ifdef PSXBIOS_LOG
2158         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2159 #endif
2160
2161         v0 = -1;
2162         if (!pa1) {
2163                 pc0 = ra;
2164                 return;
2165         }
2166
2167         if (a0 == 1) { // stdout
2168                 char *ptr = pa1;
2169
2170                 v0 = a2;
2171                 while (a2 > 0) {
2172                         SysPrintf("%c", *ptr++); a2--;
2173                 }
2174                 pc0 = ra; return;
2175         }
2176
2177         switch (a0) {
2178                 case 2: buwrite(pa1, 1, a2); break;
2179                 case 3: buwrite(pa1, 2, a2); break;
2180         }
2181
2182         pc0 = ra;
2183 }
2184
2185 /*
2186  *      int close(int fd);
2187  */
2188
2189 void psxBios_close() { // 0x36
2190 #ifdef PSXBIOS_LOG
2191         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2192 #endif
2193
2194         v0 = a0;
2195         pc0 = ra;
2196 }
2197
2198 void psxBios_putchar() { // 3d
2199         SysPrintf("%c", (char)a0);
2200         pc0 = ra;
2201 }
2202
2203 void psxBios_puts() { // 3e/3f
2204         SysPrintf("%s", Ra0);
2205         pc0 = ra;
2206 }
2207
2208 char ffile[64], *pfile;
2209 int nfile;
2210
2211 #define bufile(mcd) { \
2212         while (nfile < 16) { \
2213                 int match=1; \
2214  \
2215                 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
2216                 nfile++; \
2217                 if ((*ptr & 0xF0) != 0x50) continue; \
2218                 /* Bug link files show up as free block. */ \
2219                 if (!ptr[0xa]) continue; \
2220                 ptr+= 0xa; \
2221                 if (pfile[0] == 0) { \
2222                         strncpy(dir->name, ptr, sizeof(dir->name)); \
2223                         dir->name[sizeof(dir->name) - 1] = '\0'; \
2224                 } else for (i=0; i<20; i++) { \
2225                         if (pfile[i] == ptr[i]) { \
2226                                                                 dir->name[i] = ptr[i]; continue; } \
2227                         if (pfile[i] == '?') { \
2228                                 dir->name[i] = ptr[i]; continue; } \
2229                         if (pfile[i] == '*') { \
2230                                 strcpy(dir->name+i, ptr+i); break; } \
2231                         match = 0; break; \
2232                 } \
2233                 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
2234                 if (match == 0) { continue; } \
2235                 dir->size = 8192; \
2236                 v0 = _dir; \
2237                 break; \
2238         } \
2239 }
2240
2241 /*
2242  *      struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2243  */
2244
2245 void psxBios_firstfile() { // 42
2246         struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
2247         void *pa0 = Ra0;
2248         u32 _dir = a1;
2249         char *ptr;
2250         int i;
2251
2252 #ifdef PSXBIOS_LOG
2253         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2254 #endif
2255
2256         v0 = 0;
2257
2258         if (pa0) {
2259                 strcpy(ffile, pa0);
2260                 pfile = ffile+5;
2261                 nfile = 1;
2262                 if (!strncmp(pa0, "bu00", 4)) {
2263                         // firstfile() calls _card_read() internally, so deliver it's event
2264                         DeliverEvent(0x11, 0x2);
2265                         bufile(1);
2266                 } else if (!strncmp(pa0, "bu10", 4)) {
2267                         // firstfile() calls _card_read() internally, so deliver it's event
2268                         DeliverEvent(0x11, 0x2);
2269                         bufile(2);
2270                 }
2271         }
2272
2273         pc0 = ra;
2274 }
2275
2276 /*
2277  *      struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2278  */
2279
2280 void psxBios_nextfile() { // 43
2281         struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2282         u32 _dir = a0;
2283         char *ptr;
2284         int i;
2285
2286 #ifdef PSXBIOS_LOG
2287         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2288 #endif
2289
2290         v0 = 0;
2291
2292         if (!strncmp(ffile, "bu00", 4)) {
2293                 bufile(1);
2294         }
2295
2296         if (!strncmp(ffile, "bu10", 4)) {
2297                 bufile(2);
2298         }
2299
2300         pc0 = ra;
2301 }
2302
2303 #define burename(mcd) { \
2304         for (i=1; i<16; i++) { \
2305                 int namelen, j, xor = 0; \
2306                 ptr = Mcd##mcd##Data + 128 * i; \
2307                 if ((*ptr & 0xF0) != 0x50) continue; \
2308                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2309                 namelen = strlen(Ra1+5); \
2310                 memcpy(ptr+0xa, Ra1+5, namelen); \
2311                 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2312                 for (j=0; j<127; j++) xor^= ptr[j]; \
2313                 ptr[127] = xor; \
2314                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2315                 v0 = 1; \
2316                 break; \
2317         } \
2318 }
2319
2320 /*
2321  *      int rename(char *old, char *new);
2322  */
2323
2324 void psxBios_rename() { // 44
2325         void *pa0 = Ra0;
2326         void *pa1 = Ra1;
2327         char *ptr;
2328         int i;
2329
2330 #ifdef PSXBIOS_LOG
2331         PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2332 #endif
2333
2334         v0 = 0;
2335
2336         if (pa0 && pa1) {
2337                 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2338                         burename(1);
2339                 }
2340
2341                 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2342                         burename(2);
2343                 }
2344         }
2345
2346         pc0 = ra;
2347 }
2348
2349
2350 #define budelete(mcd) { \
2351         for (i=1; i<16; i++) { \
2352                 ptr = Mcd##mcd##Data + 128 * i; \
2353                 if ((*ptr & 0xF0) != 0x50) continue; \
2354                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2355                 *ptr = (*ptr & 0xf) | 0xA0; \
2356                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2357                 SysPrintf("delete %s\n", ptr+0xa); \
2358                 v0 = 1; \
2359                 break; \
2360         } \
2361 }
2362
2363 /*
2364  *      int delete(char *name);
2365  */
2366
2367 void psxBios_delete() { // 45
2368         void *pa0 = Ra0;
2369         char *ptr;
2370         int i;
2371
2372 #ifdef PSXBIOS_LOG
2373         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2374 #endif
2375
2376         v0 = 0;
2377
2378         if (pa0) {
2379                 if (!strncmp(pa0, "bu00", 4)) {
2380                         budelete(1);
2381                 }
2382
2383                 if (!strncmp(pa0, "bu10", 4)) {
2384                         budelete(2);
2385                 }
2386         }
2387
2388         pc0 = ra;
2389 }
2390
2391 void psxBios_InitCARD() { // 4a
2392 #ifdef PSXBIOS_LOG
2393         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2394 #endif
2395
2396         CardState = 0;
2397
2398         pc0 = ra;
2399 }
2400
2401 void psxBios_StartCARD() { // 4b
2402 #ifdef PSXBIOS_LOG
2403         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2404 #endif
2405
2406         if (CardState == 0) CardState = 1;
2407
2408         pc0 = ra;
2409 }
2410
2411 void psxBios_StopCARD() { // 4c
2412 #ifdef PSXBIOS_LOG
2413         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2414 #endif
2415
2416         if (CardState == 1) CardState = 0;
2417
2418         pc0 = ra;
2419 }
2420
2421 void psxBios__card_write() { // 0x4e
2422         void *pa2 = Ra2;
2423         int port;
2424
2425 #ifdef PSXBIOS_LOG
2426         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2427 #endif
2428         /* Function also accepts sector 400h (a bug) */
2429         if (!(a1 <= 0x400))
2430         {
2431                 /* Invalid sectors */
2432                 v0 = 0; pc0 = ra;
2433                 return;
2434         }
2435         card_active_chan = a0;
2436         port = a0 >> 4;
2437
2438         if (pa2) {
2439                 if (port == 0) {
2440                         memcpy(Mcd1Data + a1 * 128, pa2, 128);
2441                         SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2442                 } else {
2443                         memcpy(Mcd2Data + a1 * 128, pa2, 128);
2444                         SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2445                 }
2446         }
2447
2448         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2449 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2450
2451         v0 = 1; pc0 = ra;
2452 }
2453
2454 void psxBios__card_read() { // 0x4f
2455         void *pa2 = Ra2;
2456         int port;
2457
2458 #ifdef PSXBIOS_LOG
2459         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2460 #endif
2461         /* Function also accepts sector 400h (a bug) */
2462         if (!(a1 <= 0x400))
2463         {
2464                 /* Invalid sectors */
2465                 v0 = 0; pc0 = ra;
2466                 return;
2467         }
2468         card_active_chan = a0;
2469         port = a0 >> 4;
2470
2471         if (pa2) {
2472                 if (port == 0) {
2473                         memcpy(pa2, Mcd1Data + a1 * 128, 128);
2474                 } else {
2475                         memcpy(pa2, Mcd2Data + a1 * 128, 128);
2476                 }
2477         }
2478
2479         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2480 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2481
2482         v0 = 1; pc0 = ra;
2483 }
2484
2485 void psxBios__new_card() { // 0x50
2486 #ifdef PSXBIOS_LOG
2487         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2488 #endif
2489
2490         pc0 = ra;
2491 }
2492
2493 /* According to a user, this allows Final Fantasy Tactics to save/load properly */
2494 void psxBios__get_error(void) // 55
2495 {
2496         v0 = 0;
2497         pc0 = ra;
2498 }
2499
2500 void psxBios_Krom2RawAdd() { // 0x51
2501         int i = 0;
2502
2503         const u32 table_8140[][2] = {
2504                 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2505                 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2506                 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2507                 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2508                 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2509                 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2510                 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2511                 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2512                 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2513                 {0xffff, 0}
2514         };
2515
2516         const u32 table_889f[][2] = {
2517                 {0x889f, 0x3d68},  {0x8900, 0x40ec},  {0x897f, 0x4fb0},  {0x8a00, 0x56f4},
2518                 {0x8a7f, 0x65b8},  {0x8b00, 0x6cfc},  {0x8b7f, 0x7bc0},  {0x8c00, 0x8304},
2519                 {0x8c7f, 0x91c8},  {0x8d00, 0x990c},  {0x8d7f, 0xa7d0},  {0x8e00, 0xaf14},
2520                 {0x8e7f, 0xbdd8},  {0x8f00, 0xc51c},  {0x8f7f, 0xd3e0},  {0x9000, 0xdb24},
2521                 {0x907f, 0xe9e8},  {0x9100, 0xf12c},  {0x917f, 0xfff0},  {0x9200, 0x10734},
2522                 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2523                 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2524                 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2525                 {0xffff, 0}
2526         };
2527
2528         if (a0 >= 0x8140 && a0 <= 0x84be) {
2529                 while (table_8140[i][0] <= a0) i++;
2530                 a0 -= table_8140[i - 1][0];
2531                 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2532         } else if (a0 >= 0x889f && a0 <= 0x9872) {
2533                 while (table_889f[i][0] <= a0) i++;
2534                 a0 -= table_889f[i - 1][0];
2535                 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2536         } else {
2537                 v0 = 0xffffffff;
2538         }
2539
2540         pc0 = ra;
2541 }
2542
2543 void psxBios_GetC0Table() { // 56
2544 #ifdef PSXBIOS_LOG
2545         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2546 #endif
2547
2548         v0 = 0x674; pc0 = ra;
2549 }
2550
2551 void psxBios_GetB0Table() { // 57
2552 #ifdef PSXBIOS_LOG
2553         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2554 #endif
2555
2556         v0 = 0x874; pc0 = ra;
2557 }
2558
2559 void psxBios__card_chan() { // 0x58
2560 #ifdef PSXBIOS_LOG
2561         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2562 #endif
2563
2564         v0 = card_active_chan;
2565         pc0 = ra;
2566 }
2567
2568 void psxBios_ChangeClearPad() { // 5b
2569 #ifdef PSXBIOS_LOG
2570         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2571 #endif
2572
2573         pc0 = ra;
2574 }
2575
2576 /* System calls C0 */
2577
2578 /*
2579  * int SysEnqIntRP(int index , long *queue);
2580  */
2581
2582 void psxBios_SysEnqIntRP() { // 02
2583 #ifdef PSXBIOS_LOG
2584         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2585 #endif
2586
2587         SysIntRP[a0] = a1;
2588
2589         v0 = 0; pc0 = ra;
2590 }
2591
2592 /*
2593  * int SysDeqIntRP(int index , long *queue);
2594  */
2595
2596 void psxBios_SysDeqIntRP() { // 03
2597 #ifdef PSXBIOS_LOG
2598         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2599 #endif
2600
2601         SysIntRP[a0] = 0;
2602
2603         v0 = 0; pc0 = ra;
2604 }
2605
2606 void psxBios_ChangeClearRCnt() { // 0a
2607         u32 *ptr;
2608
2609 #ifdef PSXBIOS_LOG
2610         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2611 #endif
2612
2613         ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2614         v0 = *ptr;
2615         *ptr = a1;
2616
2617 //      psxRegs.CP0.n.Status|= 0x404;
2618         pc0 = ra;
2619 }
2620
2621 void psxBios_dummy() {
2622 #ifdef PSXBIOS_LOG
2623         PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2624 #endif
2625         pc0 = ra;
2626 }
2627
2628 void (*biosA0[256])();
2629 void (*biosB0[256])();
2630 void (*biosC0[256])();
2631
2632 #include "sjisfont.h"
2633
2634 void psxBiosInit() {
2635         u32 base, size;
2636         u32 *ptr;
2637         int i;
2638         uLongf len;
2639
2640         for(i = 0; i < 256; i++) {
2641                 biosA0[i] = NULL;
2642                 biosB0[i] = NULL;
2643                 biosC0[i] = NULL;
2644         }
2645         biosA0[0x3e] = psxBios_puts;
2646         biosA0[0x3f] = psxBios_printf;
2647
2648         biosB0[0x3d] = psxBios_putchar;
2649         biosB0[0x3f] = psxBios_puts;
2650
2651         if (!Config.HLE) return;
2652
2653         for(i = 0; i < 256; i++) {
2654                 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2655                 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2656                 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2657         }
2658
2659         biosA0[0x00] = psxBios_open;
2660         biosA0[0x01] = psxBios_lseek;
2661         biosA0[0x02] = psxBios_read;
2662         biosA0[0x03] = psxBios_write;
2663         biosA0[0x04] = psxBios_close;
2664         //biosA0[0x05] = psxBios_ioctl;
2665         //biosA0[0x06] = psxBios_exit;
2666         //biosA0[0x07] = psxBios_sys_a0_07;
2667         biosA0[0x08] = psxBios_getc;
2668         biosA0[0x09] = psxBios_putc;
2669         biosA0[0x0a] = psxBios_todigit;
2670         //biosA0[0x0b] = psxBios_atof;
2671         //biosA0[0x0c] = psxBios_strtoul;
2672         //biosA0[0x0d] = psxBios_strtol;
2673         biosA0[0x0e] = psxBios_abs;
2674         biosA0[0x0f] = psxBios_labs;
2675         biosA0[0x10] = psxBios_atoi;
2676         biosA0[0x11] = psxBios_atol;
2677         //biosA0[0x12] = psxBios_atob;
2678         biosA0[0x13] = psxBios_setjmp;
2679         biosA0[0x14] = psxBios_longjmp;
2680         biosA0[0x15] = psxBios_strcat;
2681         biosA0[0x16] = psxBios_strncat;
2682         biosA0[0x17] = psxBios_strcmp;
2683         biosA0[0x18] = psxBios_strncmp;
2684         biosA0[0x19] = psxBios_strcpy;
2685         biosA0[0x1a] = psxBios_strncpy;
2686         biosA0[0x1b] = psxBios_strlen;
2687         biosA0[0x1c] = psxBios_index;
2688         biosA0[0x1d] = psxBios_rindex;
2689         biosA0[0x1e] = psxBios_strchr;
2690         biosA0[0x1f] = psxBios_strrchr;
2691         biosA0[0x20] = psxBios_strpbrk;
2692         biosA0[0x21] = psxBios_strspn;
2693         biosA0[0x22] = psxBios_strcspn;
2694         biosA0[0x23] = psxBios_strtok;
2695         biosA0[0x24] = psxBios_strstr;
2696         biosA0[0x25] = psxBios_toupper;
2697         biosA0[0x26] = psxBios_tolower;
2698         biosA0[0x27] = psxBios_bcopy;
2699         biosA0[0x28] = psxBios_bzero;
2700         biosA0[0x29] = psxBios_bcmp;
2701         biosA0[0x2a] = psxBios_memcpy;
2702         biosA0[0x2b] = psxBios_memset;
2703         biosA0[0x2c] = psxBios_memmove;
2704         biosA0[0x2d] = psxBios_memcmp;
2705         biosA0[0x2e] = psxBios_memchr;
2706         biosA0[0x2f] = psxBios_rand;
2707         biosA0[0x30] = psxBios_srand;
2708         biosA0[0x31] = psxBios_qsort;
2709         //biosA0[0x32] = psxBios_strtod;
2710         biosA0[0x33] = psxBios_malloc;
2711         biosA0[0x34] = psxBios_free;
2712         //biosA0[0x35] = psxBios_lsearch;
2713         //biosA0[0x36] = psxBios_bsearch;
2714         biosA0[0x37] = psxBios_calloc;
2715         biosA0[0x38] = psxBios_realloc;
2716         biosA0[0x39] = psxBios_InitHeap;
2717         //biosA0[0x3a] = psxBios__exit;
2718         biosA0[0x3b] = psxBios_getchar;
2719         biosA0[0x3c] = psxBios_putchar;
2720         //biosA0[0x3d] = psxBios_gets;
2721         //biosA0[0x40] = psxBios_sys_a0_40;
2722         //biosA0[0x41] = psxBios_LoadTest;
2723         biosA0[0x42] = psxBios_Load;
2724         biosA0[0x43] = psxBios_Exec;
2725         biosA0[0x44] = psxBios_FlushCache;
2726         //biosA0[0x45] = psxBios_InstallInterruptHandler;
2727         biosA0[0x46] = psxBios_GPU_dw;
2728         biosA0[0x47] = psxBios_mem2vram;
2729         biosA0[0x48] = psxBios_SendGPU;
2730         biosA0[0x49] = psxBios_GPU_cw;
2731         biosA0[0x4a] = psxBios_GPU_cwb;
2732         biosA0[0x4b] = psxBios_GPU_SendPackets;
2733         biosA0[0x4c] = psxBios_sys_a0_4c;
2734         biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2735         //biosA0[0x4e] = psxBios_GPU_sync;
2736         //biosA0[0x4f] = psxBios_sys_a0_4f;
2737         //biosA0[0x50] = psxBios_sys_a0_50;
2738         biosA0[0x51] = psxBios_LoadExec;
2739         //biosA0[0x52] = psxBios_GetSysSp;
2740         //biosA0[0x53] = psxBios_sys_a0_53;
2741         //biosA0[0x54] = psxBios__96_init_a54;
2742         //biosA0[0x55] = psxBios__bu_init_a55;
2743         //biosA0[0x56] = psxBios__96_remove_a56;
2744         //biosA0[0x57] = psxBios_sys_a0_57;
2745         //biosA0[0x58] = psxBios_sys_a0_58;
2746         //biosA0[0x59] = psxBios_sys_a0_59;
2747         //biosA0[0x5a] = psxBios_sys_a0_5a;
2748         //biosA0[0x5b] = psxBios_dev_tty_init;
2749         //biosA0[0x5c] = psxBios_dev_tty_open;
2750         //biosA0[0x5d] = psxBios_sys_a0_5d;
2751         //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2752         //biosA0[0x5f] = psxBios_dev_cd_open;
2753         //biosA0[0x60] = psxBios_dev_cd_read;
2754         //biosA0[0x61] = psxBios_dev_cd_close;
2755         //biosA0[0x62] = psxBios_dev_cd_firstfile;
2756         //biosA0[0x63] = psxBios_dev_cd_nextfile;
2757         //biosA0[0x64] = psxBios_dev_cd_chdir;
2758         //biosA0[0x65] = psxBios_dev_card_open;
2759         //biosA0[0x66] = psxBios_dev_card_read;
2760         //biosA0[0x67] = psxBios_dev_card_write;
2761         //biosA0[0x68] = psxBios_dev_card_close;
2762         //biosA0[0x69] = psxBios_dev_card_firstfile;
2763         //biosA0[0x6a] = psxBios_dev_card_nextfile;
2764         //biosA0[0x6b] = psxBios_dev_card_erase;
2765         //biosA0[0x6c] = psxBios_dev_card_undelete;
2766         //biosA0[0x6d] = psxBios_dev_card_format;
2767         //biosA0[0x6e] = psxBios_dev_card_rename;
2768         //biosA0[0x6f] = psxBios_dev_card_6f;
2769         biosA0[0x70] = psxBios__bu_init;
2770         biosA0[0x71] = psxBios__96_init;
2771         biosA0[0x72] = psxBios__96_remove;
2772         //biosA0[0x73] = psxBios_sys_a0_73;
2773         //biosA0[0x74] = psxBios_sys_a0_74;
2774         //biosA0[0x75] = psxBios_sys_a0_75;
2775         //biosA0[0x76] = psxBios_sys_a0_76;
2776         //biosA0[0x77] = psxBios_sys_a0_77;
2777         //biosA0[0x78] = psxBios__96_CdSeekL;
2778         //biosA0[0x79] = psxBios_sys_a0_79;
2779         //biosA0[0x7a] = psxBios_sys_a0_7a;
2780         //biosA0[0x7b] = psxBios_sys_a0_7b;
2781         //biosA0[0x7c] = psxBios__96_CdGetStatus;
2782         //biosA0[0x7d] = psxBios_sys_a0_7d;
2783         //biosA0[0x7e] = psxBios__96_CdRead;
2784         //biosA0[0x7f] = psxBios_sys_a0_7f;
2785         //biosA0[0x80] = psxBios_sys_a0_80;
2786         //biosA0[0x81] = psxBios_sys_a0_81;
2787         //biosA0[0x82] = psxBios_sys_a0_82;
2788         //biosA0[0x83] = psxBios_sys_a0_83;
2789         //biosA0[0x84] = psxBios_sys_a0_84;
2790         //biosA0[0x85] = psxBios__96_CdStop;
2791         //biosA0[0x86] = psxBios_sys_a0_86;
2792         //biosA0[0x87] = psxBios_sys_a0_87;
2793         //biosA0[0x88] = psxBios_sys_a0_88;
2794         //biosA0[0x89] = psxBios_sys_a0_89;
2795         //biosA0[0x8a] = psxBios_sys_a0_8a;
2796         //biosA0[0x8b] = psxBios_sys_a0_8b;
2797         //biosA0[0x8c] = psxBios_sys_a0_8c;
2798         //biosA0[0x8d] = psxBios_sys_a0_8d;
2799         //biosA0[0x8e] = psxBios_sys_a0_8e;
2800         //biosA0[0x8f] = psxBios_sys_a0_8f;
2801         //biosA0[0x90] = psxBios_sys_a0_90;
2802         //biosA0[0x91] = psxBios_sys_a0_91;
2803         //biosA0[0x92] = psxBios_sys_a0_92;
2804         //biosA0[0x93] = psxBios_sys_a0_93;
2805         //biosA0[0x94] = psxBios_sys_a0_94;
2806         //biosA0[0x95] = psxBios_sys_a0_95;
2807         //biosA0[0x96] = psxBios_AddCDROMDevice;
2808         //biosA0[0x97] = psxBios_AddMemCardDevide;
2809         //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2810         //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2811         //biosA0[0x9a] = psxBios_sys_a0_9a;
2812         //biosA0[0x9b] = psxBios_sys_a0_9b;
2813         //biosA0[0x9c] = psxBios_SetConf;
2814         //biosA0[0x9d] = psxBios_GetConf;
2815         //biosA0[0x9e] = psxBios_sys_a0_9e;
2816         biosA0[0x9f] = psxBios_SetMem;
2817         //biosA0[0xa0] = psxBios__boot;
2818         //biosA0[0xa1] = psxBios_SystemError;
2819         //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2820         //biosA0[0xa3] = psxBios_DequeueCdIntr;
2821         //biosA0[0xa4] = psxBios_sys_a0_a4;
2822         //biosA0[0xa5] = psxBios_ReadSector;
2823         //biosA0[0xa6] = psxBios_get_cd_status;
2824         //biosA0[0xa7] = psxBios_bufs_cb_0;
2825         //biosA0[0xa8] = psxBios_bufs_cb_1;
2826         //biosA0[0xa9] = psxBios_bufs_cb_2;
2827         //biosA0[0xaa] = psxBios_bufs_cb_3;
2828         biosA0[0xab] = psxBios__card_info;
2829         biosA0[0xac] = psxBios__card_load;
2830         //biosA0[0axd] = psxBios__card_auto;
2831         //biosA0[0xae] = psxBios_bufs_cd_4;
2832         //biosA0[0xaf] = psxBios_sys_a0_af;
2833         //biosA0[0xb0] = psxBios_sys_a0_b0;
2834         //biosA0[0xb1] = psxBios_sys_a0_b1;
2835         //biosA0[0xb2] = psxBios_do_a_long_jmp
2836         //biosA0[0xb3] = psxBios_sys_a0_b3;
2837         //biosA0[0xb4] = psxBios_sub_function;
2838 //*******************B0 CALLS****************************
2839         //biosB0[0x00] = psxBios_SysMalloc;
2840         //biosB0[0x01] = psxBios_sys_b0_01;
2841         biosB0[0x02] = psxBios_SetRCnt;
2842         biosB0[0x03] = psxBios_GetRCnt;
2843         biosB0[0x04] = psxBios_StartRCnt;
2844         biosB0[0x05] = psxBios_StopRCnt;
2845         biosB0[0x06] = psxBios_ResetRCnt;
2846         biosB0[0x07] = psxBios_DeliverEvent;
2847         biosB0[0x08] = psxBios_OpenEvent;
2848         biosB0[0x09] = psxBios_CloseEvent;
2849         biosB0[0x0a] = psxBios_WaitEvent;
2850         biosB0[0x0b] = psxBios_TestEvent;
2851         biosB0[0x0c] = psxBios_EnableEvent;
2852         biosB0[0x0d] = psxBios_DisableEvent;
2853         biosB0[0x0e] = psxBios_OpenTh;
2854         biosB0[0x0f] = psxBios_CloseTh;
2855         biosB0[0x10] = psxBios_ChangeTh;
2856         //biosB0[0x11] = psxBios_psxBios_b0_11;
2857         biosB0[0x12] = psxBios_InitPAD;
2858         biosB0[0x13] = psxBios_StartPAD;
2859         biosB0[0x14] = psxBios_StopPAD;
2860         biosB0[0x15] = psxBios_PAD_init;
2861         biosB0[0x16] = psxBios_PAD_dr;
2862         biosB0[0x17] = psxBios_ReturnFromException;
2863         biosB0[0x18] = psxBios_ResetEntryInt;
2864         biosB0[0x19] = psxBios_HookEntryInt;
2865         //biosB0[0x1a] = psxBios_sys_b0_1a;
2866         //biosB0[0x1b] = psxBios_sys_b0_1b;
2867         //biosB0[0x1c] = psxBios_sys_b0_1c;
2868         //biosB0[0x1d] = psxBios_sys_b0_1d;
2869         //biosB0[0x1e] = psxBios_sys_b0_1e;
2870         //biosB0[0x1f] = psxBios_sys_b0_1f;
2871         biosB0[0x20] = psxBios_UnDeliverEvent;
2872         //biosB0[0x21] = psxBios_sys_b0_21;
2873         //biosB0[0x22] = psxBios_sys_b0_22;
2874         //biosB0[0x23] = psxBios_sys_b0_23;
2875         //biosB0[0x24] = psxBios_sys_b0_24;
2876         //biosB0[0x25] = psxBios_sys_b0_25;
2877         //biosB0[0x26] = psxBios_sys_b0_26;
2878         //biosB0[0x27] = psxBios_sys_b0_27;
2879         //biosB0[0x28] = psxBios_sys_b0_28;
2880         //biosB0[0x29] = psxBios_sys_b0_29;
2881         //biosB0[0x2a] = psxBios_sys_b0_2a;
2882         //biosB0[0x2b] = psxBios_sys_b0_2b;
2883         //biosB0[0x2c] = psxBios_sys_b0_2c;
2884         //biosB0[0x2d] = psxBios_sys_b0_2d;
2885         //biosB0[0x2e] = psxBios_sys_b0_2e;
2886         //biosB0[0x2f] = psxBios_sys_b0_2f;
2887         //biosB0[0x30] = psxBios_sys_b0_30;
2888         //biosB0[0x31] = psxBios_sys_b0_31;
2889         biosB0[0x32] = psxBios_open;
2890         biosB0[0x33] = psxBios_lseek;
2891         biosB0[0x34] = psxBios_read;
2892         biosB0[0x35] = psxBios_write;
2893         biosB0[0x36] = psxBios_close;
2894         //biosB0[0x37] = psxBios_ioctl;
2895         //biosB0[0x38] = psxBios_exit;
2896         //biosB0[0x39] = psxBios_sys_b0_39;
2897         //biosB0[0x3a] = psxBios_getc;
2898         //biosB0[0x3b] = psxBios_putc;
2899         biosB0[0x3c] = psxBios_getchar;
2900         //biosB0[0x3e] = psxBios_gets;
2901         //biosB0[0x40] = psxBios_cd;
2902         biosB0[0x41] = psxBios_format;
2903         biosB0[0x42] = psxBios_firstfile;
2904         biosB0[0x43] = psxBios_nextfile;
2905         biosB0[0x44] = psxBios_rename;
2906         biosB0[0x45] = psxBios_delete;
2907         //biosB0[0x46] = psxBios_undelete;
2908         //biosB0[0x47] = psxBios_AddDevice;
2909         //biosB0[0x48] = psxBios_RemoteDevice;
2910         //biosB0[0x49] = psxBios_PrintInstalledDevices;
2911         biosB0[0x4a] = psxBios_InitCARD;
2912         biosB0[0x4b] = psxBios_StartCARD;
2913         biosB0[0x4c] = psxBios_StopCARD;
2914         //biosB0[0x4d] = psxBios_sys_b0_4d;
2915         biosB0[0x4e] = psxBios__card_write;
2916         biosB0[0x4f] = psxBios__card_read;
2917         biosB0[0x50] = psxBios__new_card;
2918         biosB0[0x51] = psxBios_Krom2RawAdd;
2919         //biosB0[0x52] = psxBios_sys_b0_52;
2920         //biosB0[0x53] = psxBios_sys_b0_53;
2921         //biosB0[0x54] = psxBios__get_errno;
2922         biosB0[0x55] = psxBios__get_error;
2923         biosB0[0x56] = psxBios_GetC0Table;
2924         biosB0[0x57] = psxBios_GetB0Table;
2925         biosB0[0x58] = psxBios__card_chan;
2926         //biosB0[0x59] = psxBios_sys_b0_59;
2927         //biosB0[0x5a] = psxBios_sys_b0_5a;
2928         biosB0[0x5b] = psxBios_ChangeClearPad;
2929         //biosB0[0x5c] = psxBios__card_status;
2930         //biosB0[0x5d] = psxBios__card_wait;
2931 //*******************C0 CALLS****************************
2932         //biosC0[0x00] = psxBios_InitRCnt;
2933         //biosC0[0x01] = psxBios_InitException;
2934         biosC0[0x02] = psxBios_SysEnqIntRP;
2935         biosC0[0x03] = psxBios_SysDeqIntRP;
2936         //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2937         //biosC0[0x05] = psxBios_get_free_TCB_slot;
2938         //biosC0[0x06] = psxBios_ExceptionHandler;
2939         //biosC0[0x07] = psxBios_InstallExeptionHandler;
2940         //biosC0[0x08] = psxBios_SysInitMemory;
2941         //biosC0[0x09] = psxBios_SysInitKMem;
2942         biosC0[0x0a] = psxBios_ChangeClearRCnt;
2943         //biosC0[0x0b] = psxBios_SystemError;
2944         //biosC0[0x0c] = psxBios_InitDefInt;
2945         //biosC0[0x0d] = psxBios_sys_c0_0d;
2946         //biosC0[0x0e] = psxBios_sys_c0_0e;
2947         //biosC0[0x0f] = psxBios_sys_c0_0f;
2948         //biosC0[0x10] = psxBios_sys_c0_10;
2949         //biosC0[0x11] = psxBios_sys_c0_11;
2950         //biosC0[0x12] = psxBios_InstallDevices;
2951         //biosC0[0x13] = psxBios_FlushStfInOutPut;
2952         //biosC0[0x14] = psxBios_sys_c0_14;
2953         //biosC0[0x15] = psxBios__cdevinput;
2954         //biosC0[0x16] = psxBios__cdevscan;
2955         //biosC0[0x17] = psxBios__circgetc;
2956         //biosC0[0x18] = psxBios__circputc;
2957         //biosC0[0x19] = psxBios_ioabort;
2958         //biosC0[0x1a] = psxBios_sys_c0_1a
2959         //biosC0[0x1b] = psxBios_KernelRedirect;
2960         //biosC0[0x1c] = psxBios_PatchAOTable;
2961 //************** THE END ***************************************
2962 /**/
2963         base = 0x1000;
2964         size = sizeof(EvCB) * 32;
2965         Event = (void *)&psxR[base]; base += size * 6;
2966         memset(Event, 0, size * 6);
2967         HwEV = Event;
2968         EvEV = Event + 32;
2969         RcEV = Event + 32 * 2;
2970         UeEV = Event + 32 * 3;
2971         SwEV = Event + 32 * 4;
2972         ThEV = Event + 32 * 5;
2973
2974         ptr = (u32 *)&psxM[0x0874]; // b0 table
2975         ptr[0] = SWAPu32(0x4c54 - 0x884);
2976
2977         ptr = (u32 *)&psxM[0x0674]; // c0 table
2978         ptr[6] = SWAPu32(0xc80);
2979
2980         memset(SysIntRP, 0, sizeof(SysIntRP));
2981         memset(Thread, 0, sizeof(Thread));
2982         Thread[0].status = 2; // main thread
2983
2984         jmp_int = NULL;
2985         pad_buf = NULL;
2986         pad_buf1 = NULL;
2987         pad_buf2 = NULL;
2988         pad_buf1len = pad_buf2len = 0;
2989         heap_addr = NULL;
2990         heap_end = NULL;
2991         heap_size = 0;
2992         CardState = -1;
2993         CurThread = 0;
2994         memset(FDesc, 0, sizeof(FDesc));
2995
2996         psxMu32ref(0x0150) = SWAPu32(0x160);
2997         psxMu32ref(0x0154) = SWAPu32(0x320);
2998         psxMu32ref(0x0160) = SWAPu32(0x248);
2999         strcpy((char *)&psxM[0x248], "bu");
3000 /*      psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
3001         psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
3002         psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
3003         psxMu32ref(0x09e0) = SWAPu32(0x43d0);
3004         psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
3005 */
3006         // opcode HLE
3007         psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
3008         psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
3009         psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
3010         psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
3011         psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
3012         psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
3013         psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
3014         psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
3015         psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
3016         psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
3017
3018         // initial stack pointer for BIOS interrupt
3019         psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
3020
3021         // initial RNG seed
3022         psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
3023
3024         // fonts
3025         len = 0x80000 - 0x66000;
3026         uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
3027         len = 0x80000 - 0x69d68;
3028         uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
3029
3030         // memory size 2 MB
3031         psxHu32ref(0x1060) = SWAPu32(0x00000b88);
3032
3033         hleSoftCall = FALSE;
3034 }
3035
3036 void psxBiosShutdown() {
3037 }
3038
3039 #define psxBios_PADpoll(pad) { \
3040         PAD##pad##_startPoll(pad); \
3041         pad_buf##pad[0] = 0; \
3042         pad_buf##pad[1] = PAD##pad##_poll(0x42); \
3043         if (!(pad_buf##pad[1] & 0x0f)) { \
3044                 bufcount = 32; \
3045         } else { \
3046                 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
3047         } \
3048         PAD##pad##_poll(0); \
3049         i = 2; \
3050         while (bufcount--) { \
3051                 pad_buf##pad[i++] = PAD##pad##_poll(0); \
3052         } \
3053 }
3054
3055 void biosInterrupt() {
3056         int i, bufcount;
3057
3058 //      if (psxHu32(0x1070) & 0x1) { // Vsync
3059                 if (pad_buf != NULL) {
3060                         u32 *buf = (u32*)pad_buf;
3061
3062                         if (!Config.UseNet) {
3063                                 PAD1_startPoll(1);
3064                                 if (PAD1_poll(0x42) == 0x23) {
3065                                         PAD1_poll(0);
3066                                         *buf = PAD1_poll(0) << 8;
3067                                         *buf |= PAD1_poll(0);
3068                                         PAD1_poll(0);
3069                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
3070                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
3071                                 } else {
3072                                         PAD1_poll(0);
3073                                         *buf = PAD1_poll(0) << 8;
3074                                         *buf|= PAD1_poll(0);
3075                                 }
3076
3077                                 PAD2_startPoll(2);
3078                                 if (PAD2_poll(0x42) == 0x23) {
3079                                         PAD2_poll(0);
3080                                         *buf |= PAD2_poll(0) << 24;
3081                                         *buf |= PAD2_poll(0) << 16;
3082                                         PAD2_poll(0);
3083                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
3084                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
3085                                 } else {
3086                                         PAD2_poll(0);
3087                                         *buf |= PAD2_poll(0) << 24;
3088                                         *buf |= PAD2_poll(0) << 16;
3089                                 }
3090                         } else {
3091                                 u16 data;
3092
3093                                 PAD1_startPoll(1);
3094                                 PAD1_poll(0x42);
3095                                 PAD1_poll(0);
3096                                 data = PAD1_poll(0) << 8;
3097                                 data |= PAD1_poll(0);
3098
3099                                 if (NET_sendPadData(&data, 2) == -1)
3100                                         netError();
3101
3102                                 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
3103                                         netError();
3104                                 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3105                                         netError();
3106                         }
3107                 }
3108                 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3109                         psxBios_PADpoll(1);
3110
3111                         if (NET_sendPadData(pad_buf1, i) == -1)
3112                                 netError();
3113
3114                         if (NET_recvPadData(pad_buf1, 1) == -1)
3115                                 netError();
3116                         if (NET_recvPadData(pad_buf2, 2) == -1)
3117                                 netError();
3118                 } else {
3119                         if (pad_buf1) {
3120                                 psxBios_PADpoll(1);
3121                         }
3122
3123                         if (pad_buf2) {
3124                                 psxBios_PADpoll(2);
3125                         }
3126                 }
3127
3128         if (psxHu32(0x1070) & 0x1) { // Vsync
3129                 if (RcEV[3][1].status == EvStACTIVE) {
3130                         softCall(RcEV[3][1].fhandler);
3131 //                      hwWrite32(0x1f801070, ~(1));
3132                 }
3133         }
3134
3135         if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3136                 int i;
3137
3138                 for (i = 0; i < 3; i++) {
3139                         if (psxHu32(0x1070) & (1 << (i + 4))) {
3140                                 if (RcEV[i][1].status == EvStACTIVE) {
3141                                         softCall(RcEV[i][1].fhandler);
3142                                 }
3143                                 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3144                         }
3145                 }
3146         }
3147 }
3148
3149 void psxBiosException() {
3150         int i;
3151
3152         switch (psxRegs.CP0.n.Cause & 0x3c) {
3153                 case 0x00: // Interrupt
3154 #ifdef PSXCPU_LOG
3155 //                      PSXCPU_LOG("interrupt\n");
3156 #endif
3157                         SaveRegs();
3158
3159                         sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3160
3161                         biosInterrupt();
3162
3163                         for (i = 0; i < 8; i++) {
3164                                 if (SysIntRP[i]) {
3165                                         u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3166
3167                                         s0 = queue[2];
3168                                         softCall(queue[1]);
3169                                 }
3170                         }
3171
3172                         if (jmp_int != NULL) {
3173                                 int i;
3174
3175                                 psxHwWrite32(0x1f801070, 0xffffffff);
3176
3177                                 ra = jmp_int[0];
3178                                 sp = jmp_int[1];
3179                                 fp = jmp_int[2];
3180                                 for (i = 0; i < 8; i++) // s0-s7
3181                                          psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3182                                 gp = jmp_int[11];
3183
3184                                 v0 = 1;
3185                                 pc0 = ra;
3186                                 return;
3187                         }
3188                         psxHwWrite16(0x1f801070, 0);
3189                         break;
3190
3191                 case 0x20: // Syscall
3192 #ifdef PSXCPU_LOG
3193                         PSXCPU_LOG("syscall exp %x\n", a0);
3194 #endif
3195                         switch (a0) {
3196                                 case 1: // EnterCritical - disable irq's
3197                                         /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3198                                         v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3199                                         psxRegs.CP0.n.Status &= ~0x404;
3200                                         break;
3201
3202                                 case 2: // ExitCritical - enable irq's
3203                                         psxRegs.CP0.n.Status |= 0x404;
3204                                         break;
3205                                 /* Normally this should cover SYS(00h, SYS(04h but they don't do anything relevant so... */
3206                                 default:
3207                                         break;
3208                         }
3209                         pc0 = psxRegs.CP0.n.EPC + 4;
3210
3211                         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3212                                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3213                         return;
3214
3215                 default:
3216 #ifdef PSXCPU_LOG
3217                         PSXCPU_LOG("unknown bios exception!\n");
3218 #endif
3219                         break;
3220         }
3221
3222         pc0 = psxRegs.CP0.n.EPC;
3223         if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3224
3225         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3226                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3227 }
3228
3229 #define bfreeze(ptr, size) { \
3230         if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3231         if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3232         base += size; \
3233 }
3234
3235 #define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3236 #define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3237
3238 #define bfreezepsxMptr(ptr, type) { \
3239         if (Mode == 1) { \
3240                 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3241                 else psxRu32ref(base) = 0; \
3242         } else { \
3243                 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3244                 else (ptr) = NULL; \
3245         } \
3246         base += sizeof(u32); \
3247 }
3248
3249 void psxBiosFreeze(int Mode) {
3250         u32 base = 0x40000;
3251
3252         bfreezepsxMptr(jmp_int, u32);
3253         bfreezepsxMptr(pad_buf, int);
3254         bfreezepsxMptr(pad_buf1, char);
3255         bfreezepsxMptr(pad_buf2, char);
3256         bfreezepsxMptr(heap_addr, u32);
3257         bfreezel(&pad_buf1len);
3258         bfreezel(&pad_buf2len);
3259         bfreezes(regs);
3260         bfreezes(SysIntRP);
3261         bfreezel(&CardState);
3262         bfreezes(Thread);
3263         bfreezel(&CurThread);
3264         bfreezes(FDesc);
3265         bfreezel(&card_active_chan);
3266 }