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