libpcsxcore/psxbios.c

   1 /***************************************************************************
   2  *   Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team              *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA.           *
  18  ***************************************************************************/
  19
  20 /*
  21  * Internal simulated HLE BIOS.
  22  */
  23
  24 // TODO: implement all system calls, count the exact CPU cycles of system calls.
  25
  26 #include "psxbios.h"
  27 #include "psxhw.h"
  28 #include "gpu.h"
  29 #include <zlib.h>
  30
  31 #undef SysPrintf
  32 #define SysPrintf if (Config.PsxOut) printf
  33
  34 char *biosA0n[256] = {
  35 // 0x00
  36         "open",         "lseek",        "read",         "write",
  37         "close",        "ioctl",        "exit",         "sys_a0_07",
  38         "getc",         "putc",         "todigit",      "atof",
  39         "strtoul",      "strtol",       "abs",          "labs",
  40 // 0x10
  41         "atoi",         "atol",         "atob",         "setjmp",
  42         "longjmp",      "strcat",       "strncat",      "strcmp",
  43         "strncmp",      "strcpy",       "strncpy",      "strlen",
  44         "index",        "rindex",       "strchr",       "strrchr",
  45 // 0x20
  46         "strpbrk",      "strspn",       "strcspn",      "strtok",
  47         "strstr",       "toupper",      "tolower",      "bcopy",
  48         "bzero",        "bcmp",         "memcpy",       "memset",
  49         "memmove",      "memcmp",       "memchr",       "rand",
  50 // 0x30
  51         "srand",        "qsort",        "strtod",       "malloc",
  52         "free",         "lsearch",      "bsearch",      "calloc",
  53         "realloc",      "InitHeap",     "_exit",        "getchar",
  54         "putchar",      "gets",         "puts",         "printf",
  55 // 0x40
  56         "sys_a0_40",            "LoadTest",                                     "Load",         "Exec",
  57         "FlushCache",           "InstallInterruptHandler",      "GPU_dw",       "mem2vram",
  58         "SendGPUStatus",        "GPU_cw",                                       "GPU_cwb",      "SendPackets",
  59         "sys_a0_4c",            "GetGPUStatus",                         "GPU_sync",     "sys_a0_4f",
  60 // 0x50
  61         "sys_a0_50",            "LoadExec",                             "GetSysSp",             "sys_a0_53",
  62         "_96_init()",           "_bu_init()",                   "_96_remove()", "sys_a0_57",
  63         "sys_a0_58",            "sys_a0_59",                    "sys_a0_5a",    "dev_tty_init",
  64         "dev_tty_open",         "sys_a0_5d",                    "dev_tty_ioctl","dev_cd_open",
  65 // 0x60
  66         "dev_cd_read",          "dev_cd_close",                 "dev_cd_firstfile",     "dev_cd_nextfile",
  67         "dev_cd_chdir",         "dev_card_open",                "dev_card_read",        "dev_card_write",
  68         "dev_card_close",       "dev_card_firstfile",   "dev_card_nextfile","dev_card_erase",
  69         "dev_card_undelete","dev_card_format",          "dev_card_rename",      "dev_card_6f",
  70 // 0x70
  71         "_bu_init",                     "_96_init",             "_96_remove",           "sys_a0_73",
  72         "sys_a0_74",            "sys_a0_75",    "sys_a0_76",            "sys_a0_77",
  73         "_96_CdSeekL",          "sys_a0_79",    "sys_a0_7a",            "sys_a0_7b",
  74         "_96_CdGetStatus",      "sys_a0_7d",    "_96_CdRead",           "sys_a0_7f",
  75 // 0x80
  76         "sys_a0_80",            "sys_a0_81",    "sys_a0_82",            "sys_a0_83",
  77         "sys_a0_84",            "_96_CdStop",   "sys_a0_86",            "sys_a0_87",
  78         "sys_a0_88",            "sys_a0_89",    "sys_a0_8a",            "sys_a0_8b",
  79         "sys_a0_8c",            "sys_a0_8d",    "sys_a0_8e",            "sys_a0_8f",
  80 // 0x90
  81         "sys_a0_90",            "sys_a0_91",    "sys_a0_92",            "sys_a0_93",
  82         "sys_a0_94",            "sys_a0_95",    "AddCDROMDevice",       "AddMemCardDevide",
  83         "DisableKernelIORedirection",           "EnableKernelIORedirection", "sys_a0_9a", "sys_a0_9b",
  84         "SetConf",                      "GetConf",              "sys_a0_9e",            "SetMem",
  85 // 0xa0
  86         "_boot",                        "SystemError",  "EnqueueCdIntr",        "DequeueCdIntr",
  87         "sys_a0_a4",            "ReadSector",   "get_cd_status",        "bufs_cb_0",
  88         "bufs_cb_1",            "bufs_cb_2",    "bufs_cb_3",            "_card_info",
  89         "_card_load",           "_card_auto",   "bufs_cd_4",            "sys_a0_af",
  90 // 0xb0
  91         "sys_a0_b0",            "sys_a0_b1",    "do_a_long_jmp",        "sys_a0_b3",
  92         "?? sub_function",
  93 };
  94
  95 char *biosB0n[256] = {
  96 // 0x00
  97         "SysMalloc",            "sys_b0_01",    "sys_b0_02",    "sys_b0_03",
  98         "sys_b0_04",            "sys_b0_05",    "sys_b0_06",    "DeliverEvent",
  99         "OpenEvent",            "CloseEvent",   "WaitEvent",    "TestEvent",
 100         "EnableEvent",          "DisableEvent", "OpenTh",               "CloseTh",
 101 // 0x10
 102         "ChangeTh",                     "sys_b0_11",    "InitPAD",              "StartPAD",
 103         "StopPAD",                      "PAD_init",             "PAD_dr",               "ReturnFromExecption",
 104         "ResetEntryInt",        "HookEntryInt", "sys_b0_1a",    "sys_b0_1b",
 105         "sys_b0_1c",            "sys_b0_1d",    "sys_b0_1e",    "sys_b0_1f",
 106 // 0x20
 107         "UnDeliverEvent",       "sys_b0_21",    "sys_b0_22",    "sys_b0_23",
 108         "sys_b0_24",            "sys_b0_25",    "sys_b0_26",    "sys_b0_27",
 109         "sys_b0_28",            "sys_b0_29",    "sys_b0_2a",    "sys_b0_2b",
 110         "sys_b0_2c",            "sys_b0_2d",    "sys_b0_2e",    "sys_b0_2f",
 111 // 0x30
 112         "sys_b0_30",            "sys_b0_31",    "open",                 "lseek",
 113         "read",                         "write",                "close",                "ioctl",
 114         "exit",                         "sys_b0_39",    "getc",                 "putc",
 115         "getchar",                      "putchar",              "gets",                 "puts",
 116 // 0x40
 117         "cd",                           "format",               "firstfile",    "nextfile",
 118         "rename",                       "delete",               "undelete",             "AddDevice",
 119         "RemoteDevice",         "PrintInstalledDevices", "InitCARD", "StartCARD",
 120         "StopCARD",                     "sys_b0_4d",    "_card_write",  "_card_read",
 121 // 0x50
 122         "_new_card",            "Krom2RawAdd",  "sys_b0_52",    "sys_b0_53",
 123         "_get_errno",           "_get_error",   "GetC0Table",   "GetB0Table",
 124         "_card_chan",           "sys_b0_59",    "sys_b0_5a",    "ChangeClearPAD",
 125         "_card_status",         "_card_wait",
 126 };
 127
 128 char *biosC0n[256] = {
 129 // 0x00
 130         "InitRCnt",                       "InitException",              "SysEnqIntRP",          "SysDeqIntRP",
 131         "get_free_EvCB_slot", "get_free_TCB_slot",      "ExceptionHandler",     "InstallExeptionHandler",
 132         "SysInitMemory",          "SysInitKMem",                "ChangeClearRCnt",      "SystemError",
 133         "InitDefInt",             "sys_c0_0d",                  "sys_c0_0e",            "sys_c0_0f",
 134 // 0x10
 135         "sys_c0_10",              "sys_c0_11",                  "InstallDevices",       "FlushStfInOutPut",
 136         "sys_c0_14",              "_cdevinput",                 "_cdevscan",            "_circgetc",
 137         "_circputc",              "ioabort",                    "sys_c0_1a",            "KernelRedirect",
 138         "PatchAOTable",
 139 };
 140
 141 //#define r0 (psxRegs.GPR.n.r0)
 142 #define at (psxRegs.GPR.n.at)
 143 #define v0 (psxRegs.GPR.n.v0)
 144 #define v1 (psxRegs.GPR.n.v1)
 145 #define a0 (psxRegs.GPR.n.a0)
 146 #define a1 (psxRegs.GPR.n.a1)
 147 #define a2 (psxRegs.GPR.n.a2)
 148 #define a3 (psxRegs.GPR.n.a3)
 149 #define t0 (psxRegs.GPR.n.t0)
 150 #define t1 (psxRegs.GPR.n.t1)
 151 #define t2 (psxRegs.GPR.n.t2)
 152 #define t3 (psxRegs.GPR.n.t3)
 153 #define t4 (psxRegs.GPR.n.t4)
 154 #define t5 (psxRegs.GPR.n.t5)
 155 #define t6 (psxRegs.GPR.n.t6)
 156 #define t7 (psxRegs.GPR.n.t7)
 157 #define t8 (psxRegs.GPR.n.t8)
 158 #define t9 (psxRegs.GPR.n.t9)
 159 #define s0 (psxRegs.GPR.n.s0)
 160 #define s1 (psxRegs.GPR.n.s1)
 161 #define s2 (psxRegs.GPR.n.s2)
 162 #define s3 (psxRegs.GPR.n.s3)
 163 #define s4 (psxRegs.GPR.n.s4)
 164 #define s5 (psxRegs.GPR.n.s5)
 165 #define s6 (psxRegs.GPR.n.s6)
 166 #define s7 (psxRegs.GPR.n.s7)
 167 #define k0 (psxRegs.GPR.n.k0)
 168 #define k1 (psxRegs.GPR.n.k1)
 169 #define gp (psxRegs.GPR.n.gp)
 170 #define sp (psxRegs.GPR.n.sp)
 171 #define fp (psxRegs.GPR.n.s8)
 172 #define ra (psxRegs.GPR.n.ra)
 173 #define pc0 (psxRegs.pc)
 174
 175 #define Ra0 ((char *)PSXM(a0))
 176 #define Ra1 ((char *)PSXM(a1))
 177 #define Ra2 ((char *)PSXM(a2))
 178 #define Ra3 ((char *)PSXM(a3))
 179 #define Rv0 ((char *)PSXM(v0))
 180 #define Rsp ((char *)PSXM(sp))
 181
 182 typedef struct {
 183         u32 desc;
 184         s32 status;
 185         s32 mode;
 186         u32 fhandler;
 187 } EvCB[32];
 188
 189 #define EvStUNUSED      0x0000
 190 #define EvStWAIT        0x1000
 191 #define EvStACTIVE      0x2000
 192 #define EvStALREADY 0x4000
 193
 194 #define EvMdINTR        0x1000
 195 #define EvMdNOINTR      0x2000
 196
 197 /*
 198 typedef struct {
 199         s32 next;
 200         s32 func1;
 201         s32 func2;
 202         s32 pad;
 203 } SysRPst;
 204 */
 205
 206 typedef struct {
 207         s32 status;
 208         s32 mode;
 209         u32 reg[32];
 210         u32 func;
 211 } TCB;
 212
 213 typedef struct {
 214         u32 _pc0;
 215         u32 gp0;
 216         u32 t_addr;
 217         u32 t_size;
 218         u32 d_addr;
 219         u32 d_size;
 220         u32 b_addr;
 221         u32 b_size;
 222         u32 S_addr;
 223         u32 s_size;
 224         u32 _sp, _fp, _gp, ret, base;
 225 } EXEC;
 226
 227 struct DIRENTRY {
 228         char name[20];
 229         s32 attr;
 230         s32 size;
 231         u32 next;
 232         s32 head;
 233         char system[4];
 234 };
 235
 236 typedef struct {
 237         char name[32];
 238         u32  mode;
 239         u32  offset;
 240         u32  size;
 241         u32  mcfile;
 242 } FileDesc;
 243
 244 static u32 *jmp_int = NULL;
 245 static int *pad_buf = NULL;
 246 static char *pad_buf1 = NULL, *pad_buf2 = NULL;
 247 static int pad_buf1len, pad_buf2len;
 248
 249 static u32 regs[35];
 250 static EvCB *Event;
 251 static EvCB *HwEV; // 0xf0
 252 static EvCB *EvEV; // 0xf1
 253 static EvCB *RcEV; // 0xf2
 254 static EvCB *UeEV; // 0xf3
 255 static EvCB *SwEV; // 0xf4
 256 static EvCB *ThEV; // 0xff
 257 static u32 *heap_addr = NULL;
 258 static u32 *heap_end = NULL;
 259 static u32 SysIntRP[8];
 260 static int CardState = -1;
 261 static TCB Thread[8];
 262 static int CurThread = 0;
 263 static FileDesc FDesc[32];
 264 static u32 card_active_chan;
 265
 266 boolean hleSoftCall = FALSE;
 267
 268 static inline void softCall(u32 pc) {
 269         pc0 = pc;
 270         ra = 0x80001000;
 271
 272         hleSoftCall = TRUE;
 273
 274         while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
 275
 276         hleSoftCall = FALSE;
 277 }
 278
 279 static inline void softCall2(u32 pc) {
 280         u32 sra = ra;
 281         pc0 = pc;
 282         ra = 0x80001000;
 283
 284         hleSoftCall = TRUE;
 285
 286         while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
 287         ra = sra;
 288
 289         hleSoftCall = FALSE;
 290 }
 291
 292 static inline void DeliverEvent(u32 ev, u32 spec) {
 293         if (Event[ev][spec].status != EvStACTIVE) return;
 294
 295 //      Event[ev][spec].status = EvStALREADY;
 296         if (Event[ev][spec].mode == EvMdINTR) {
 297                 softCall2(Event[ev][spec].fhandler);
 298         } else Event[ev][spec].status = EvStALREADY;
 299 }
 300
 301 static inline void SaveRegs() {
 302         memcpy(regs, psxRegs.GPR.r, 32*4);
 303         regs[32] = psxRegs.GPR.n.lo;
 304         regs[33] = psxRegs.GPR.n.hi;
 305         regs[34] = psxRegs.pc;
 306 }
 307
 308 static inline void LoadRegs() {
 309         memcpy(psxRegs.GPR.r, regs, 32*4);
 310         psxRegs.GPR.n.lo = regs[32];
 311         psxRegs.GPR.n.hi = regs[33];
 312 }
 313
 314 /*                                           *
 315 //                                           *
 316 //                                           *
 317 //               System calls A0             */
 318
 319
 320 #define buread(Ra1, mcd, length) { \
 321         SysPrintf("read %d: %x,%x (%s)\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2, Mcd##mcd##Data + 128 * FDesc[1 + mcd].mcfile + 0xa); \
 322         ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
 323         memcpy(Ra1, ptr, length); \
 324         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
 325         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
 326         if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
 327         else v0 = length; \
 328         FDesc[1 + mcd].offset += v0; \
 329 }
 330
 331 #define buwrite(Ra1, mcd, length) { \
 332         u32 offset =  + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
 333         SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
 334         ptr = Mcd##mcd##Data + offset; \
 335         memcpy(ptr, Ra1, length); \
 336         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
 337         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
 338         FDesc[1 + mcd].offset += length; \
 339         if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
 340         else v0 = length; \
 341 }
 342
 343
 344 /* Internally redirects to "FileRead(fd,tempbuf,1)".*/
 345 /* For some strange reason, the returned character is sign-expanded; */
 346 /* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
 347 /* TODO FIX ME : Properly implement this behaviour */
 348 void psxBios_getc(void) // 0x03, 0x35
 349 {
 350         char *ptr;
 351         void *pa1 = Ra1;
 352 #ifdef PSXBIOS_LOG
 353         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
 354 #endif
 355         v0 = -1;
 356
 357         if (pa1) {
 358                 switch (a0) {
 359                         case 2: buread(pa1, 1, 1); break;
 360                         case 3: buread(pa1, 2, 1); break;
 361                 }
 362         }
 363
 364         pc0 = ra;
 365 }
 366
 367 /* Copy of psxBios_write, except size is 1. */
 368 void psxBios_putc(void) // 0x09, 0x3B
 369 {
 370         char *ptr;
 371         void *pa1 = Ra1;
 372 #ifdef PSXBIOS_LOG
 373         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
 374 #endif
 375         v0 = -1;
 376         if (!pa1) {
 377                 pc0 = ra;
 378                 return;
 379         }
 380
 381         if (a0 == 1) { // stdout
 382                 char *ptr = (char *)pa1;
 383
 384                 v0 = a2;
 385                 while (a2 > 0) {
 386                         printf("%c", *ptr++); a2--;
 387                 }
 388                 pc0 = ra; return;
 389         }
 390
 391         switch (a0) {
 392                 case 2: buwrite(pa1, 1, 1); break;
 393                 case 3: buwrite(pa1, 2, 1); break;
 394         }
 395
 396         pc0 = ra;
 397 }
 398
 399 void psxBios_todigit(void) // 0x0a
 400 {
 401         int c = a0;
 402 #ifdef PSXBIOS_LOG
 403         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
 404 #endif
 405         c &= 0xFF;
 406         if (c >= 0x30 && c < 0x3A) {
 407                 c -= 0x30;
 408         }
 409         else if (c > 0x60 && c < 0x7B) {
 410                 c -= 0x20;
 411         }
 412         else if (c > 0x40 && c < 0x5B) {
 413                 c = c - 0x41 + 10;
 414         }
 415         else if (c >= 0x80) {
 416                 c = -1;
 417         }
 418         else
 419         {
 420                 c = 0x0098967F;
 421         }
 422         v0 = c;
 423         pc0 = ra;
 424 }
 425
 426 void psxBios_abs() { // 0x0e
 427         if ((s32)a0 < 0) v0 = -(s32)a0;
 428         else v0 = a0;
 429         pc0 = ra;
 430 }
 431
 432 void psxBios_labs() { // 0x0f
 433         psxBios_abs();
 434 }
 435
 436 void psxBios_atoi() { // 0x10
 437         s32 n = 0, f = 0;
 438         char *p = (char *)Ra0;
 439
 440         for (;;p++) {
 441                 switch (*p) {
 442                         case ' ': case '\t': continue;
 443                         case '-': f++;
 444                         case '+': p++;
 445                 }
 446                 break;
 447         }
 448
 449         while (*p >= '0' && *p <= '9') {
 450                 n = n * 10 + *p++ - '0';
 451         }
 452
 453         v0 = (f ? -n : n);
 454         pc0 = ra;
 455 }
 456
 457 void psxBios_atol() { // 0x11
 458         psxBios_atoi();
 459 }
 460
 461 void psxBios_setjmp() { // 0x13
 462         u32 *jmp_buf = (u32 *)Ra0;
 463         int i;
 464
 465 #ifdef PSXBIOS_LOG
 466         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
 467 #endif
 468
 469         jmp_buf[0] = ra;
 470         jmp_buf[1] = sp;
 471         jmp_buf[2] = fp;
 472         for (i = 0; i < 8; i++) // s0-s7
 473                 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
 474         jmp_buf[11] = gp;
 475
 476         v0 = 0; pc0 = ra;
 477 }
 478
 479 void psxBios_longjmp() { // 0x14
 480         u32 *jmp_buf = (u32 *)Ra0;
 481         int i;
 482
 483 #ifdef PSXBIOS_LOG
 484         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
 485 #endif
 486
 487         ra = jmp_buf[0]; /* ra */
 488         sp = jmp_buf[1]; /* sp */
 489         fp = jmp_buf[2]; /* fp */
 490         for (i = 0; i < 8; i++) // s0-s7
 491                 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
 492         gp = jmp_buf[11]; /* gp */
 493
 494         v0 = a1; pc0 = ra;
 495 }
 496
 497 void psxBios_strcat() { // 0x15
 498         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 499
 500 #ifdef PSXBIOS_LOG
 501         PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
 502 #endif
 503         if (a0 == 0 || a1 == 0)
 504         {
 505                 v0 = 0;
 506                 pc0 = ra;
 507                 return;
 508         }
 509         while (*p1++);
 510         --p1;
 511         while ((*p1++ = *p2++) != '\0');
 512
 513         v0 = a0; pc0 = ra;
 514 }
 515
 516 void psxBios_strncat() { // 0x16
 517         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 518         s32 n = a2;
 519
 520 #ifdef PSXBIOS_LOG
 521         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
 522 #endif
 523         if (a0 == 0 || a1 == 0)
 524         {
 525                 v0 = 0;
 526                 pc0 = ra;
 527                 return;
 528         }
 529         while (*p1++);
 530         --p1;
 531         while ((*p1++ = *p2++) != '\0') {
 532                 if (--n < 0) {
 533                         *--p1 = '\0';
 534                         break;
 535                 }
 536         }
 537
 538         v0 = a0; pc0 = ra;
 539 }
 540
 541 void psxBios_strcmp() { // 0x17
 542         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 543
 544 #ifdef PSXBIOS_LOG
 545         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
 546 #endif
 547
 548         while (*p1 == *p2++) {
 549                 if (*p1++ == '\0') {
 550                         v0 = 0;
 551                         pc0 = ra;
 552                         return;
 553                 }
 554         }
 555
 556         v0 = (*p1 - *--p2);
 557         pc0 = ra;
 558 }
 559
 560 void psxBios_strncmp() { // 0x18
 561         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 562         s32 n = a2;
 563
 564 #ifdef PSXBIOS_LOG
 565         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
 566 #endif
 567
 568         while (--n >= 0 && *p1 == *p2++) {
 569                 if (*p1++ == '\0') {
 570                         v0 = 0;
 571                         pc0 = ra;
 572                         return;
 573                 }
 574         }
 575
 576         v0 = (n < 0 ? 0 : *p1 - *--p2);
 577         pc0 = ra;
 578 }
 579
 580 void psxBios_strcpy() { // 0x19
 581         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 582         while ((*p1++ = *p2++) != '\0');
 583
 584         v0 = a0; pc0 = ra;
 585 }
 586
 587 void psxBios_strncpy() { // 0x1a
 588         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 589         s32 n = a2, i;
 590
 591         for (i = 0; i < n; i++) {
 592                 if ((*p1++ = *p2++) == '\0') {
 593                         while (++i < n) {
 594                                 *p1++ = '\0';
 595                         }
 596                         v0 = a0; pc0 = ra;
 597                         return;
 598                 }
 599         }
 600
 601         v0 = a0; pc0 = ra;
 602 }
 603
 604 void psxBios_strlen() { // 0x1b
 605         char *p = (char *)Ra0;
 606         v0 = 0;
 607         while (*p++) v0++;
 608         pc0 = ra;
 609 }
 610
 611 void psxBios_index() { // 0x1c
 612         char *p = (char *)Ra0;
 613         if (a0 == 0)
 614         {
 615                 v0 = 0;
 616                 pc0 = ra;
 617                 return;
 618         }
 619
 620         do {
 621                 if (*p == a1) {
 622                         v0 = a0 + (p - (char *)Ra0);
 623                         pc0 = ra;
 624                         return;
 625                 }
 626         } while (*p++ != '\0');
 627
 628         v0 = 0; pc0 = ra;
 629 }
 630
 631 void psxBios_rindex() { // 0x1d
 632         char *p = (char *)Ra0;
 633
 634         v0 = 0;
 635         if (a0 == 0)
 636         {
 637                 pc0 = ra;
 638                 return;
 639         }
 640         do {
 641                 if (*p == a1)
 642                         v0 = a0 + (p - (char *)Ra0);
 643         } while (*p++ != '\0');
 644
 645         pc0 = ra;
 646 }
 647
 648 void psxBios_strchr() { // 0x1e
 649         psxBios_index();
 650 }
 651
 652 void psxBios_strrchr() { // 0x1f
 653         psxBios_rindex();
 654 }
 655
 656 void psxBios_strpbrk() { // 0x20
 657         char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
 658
 659         while ((c = *p1++) != '\0') {
 660                 for (scanp = p2; (sc = *scanp++) != '\0';) {
 661                         if (sc == c) {
 662                                 v0 = a0 + (p1 - 1 - (char *)Ra0);
 663                                 pc0 = ra;
 664                                 return;
 665                         }
 666                 }
 667         }
 668
 669         // BUG: return a0 instead of NULL if not found
 670         v0 = a0; pc0 = ra;
 671 }
 672
 673 void psxBios_strspn() { // 0x21
 674         char *p1, *p2;
 675
 676         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 677                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 678                 if (*p2 == '\0') break;
 679         }
 680
 681         v0 = p1 - (char *)Ra0; pc0 = ra;
 682 }
 683
 684 void psxBios_strcspn() { // 0x22
 685         char *p1, *p2;
 686
 687         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 688                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 689                 if (*p2 != '\0') break;
 690         }
 691
 692         v0 = p1 - (char *)Ra0; pc0 = ra;
 693 }
 694
 695 void psxBios_strtok() { // 0x23
 696         char *pcA0 = (char *)Ra0;
 697         char *pcRet = strtok(pcA0, (char *)Ra1);
 698         if (pcRet)
 699                 v0 = a0 + pcRet - pcA0;
 700         else
 701                 v0 = 0;
 702         pc0 = ra;
 703 }
 704
 705 void psxBios_strstr() { // 0x24
 706         char *p = (char *)Ra0, *p1, *p2;
 707
 708         while (*p != '\0') {
 709                 p1 = p;
 710                 p2 = (char *)Ra1;
 711
 712                 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
 713                         p1++; p2++;
 714                 }
 715
 716                 if (*p2 == '\0') {
 717                         v0 = a0 + (p - (char *)Ra0);
 718                         pc0 = ra;
 719                         return;
 720                 }
 721
 722                 p++;
 723         }
 724
 725         v0 = 0; pc0 = ra;
 726 }
 727
 728 void psxBios_toupper() { // 0x25
 729         v0 = (s8)(a0 & 0xff);
 730         if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
 731         pc0 = ra;
 732 }
 733
 734 void psxBios_tolower() { // 0x26
 735         v0 = (s8)(a0 & 0xff);
 736         if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
 737         pc0 = ra;
 738 }
 739
 740 void psxBios_bcopy() { // 0x27
 741         char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
 742         v0 = a0;
 743         if (a0 == 0 || a2 > 0x7FFFFFFF)
 744         {
 745                 pc0 = ra;
 746                 return;
 747         }
 748         while ((s32)a2-- > 0) *p1++ = *p2++;
 749         a2 = 0;
 750         pc0 = ra;
 751 }
 752
 753 void psxBios_bzero() { // 0x28
 754         char *p = (char *)Ra0;
 755         v0 = a0;
 756         /* Same as memset here (See memset below) */
 757         if (a1 > 0x7FFFFFFF || a1 == 0)
 758         {
 759                 v0 = 0;
 760                 pc0 = ra;
 761                 return;
 762         }
 763         else if (a0 == 0)
 764         {
 765                 pc0 = ra;
 766                 return;
 767         }
 768         while ((s32)a1-- > 0) *p++ = '\0';
 769         a1 = 0;
 770         pc0 = ra;
 771 }
 772
 773 void psxBios_bcmp() { // 0x29
 774         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 775
 776         if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
 777
 778         while ((s32)a2-- > 0) {
 779                 if (*p1++ != *p2++) {
 780                         v0 = *p1 - *p2; // BUG: compare the NEXT byte
 781                         pc0 = ra;
 782                         return;
 783                 }
 784         }
 785
 786         v0 = 0; pc0 = ra;
 787 }
 788
 789 void psxBios_memcpy() { // 0x2a
 790         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 791         s32 n=0;
 792         v0 = a0;
 793         if (a0 == 0 || a2 > 0x7FFFFFFF)
 794         {
 795                 pc0 = ra;
 796                 return;
 797         }
 798         while ((s32)a2-- > 0) {
 799                 n++;
 800                 *p1++ = *p2++;
 801         }
 802         a2 = 0;
 803         pc0 = ra;
 804 }
 805
 806 void psxBios_memset() { // 0x2b
 807         char *p = (char *)Ra0;
 808         v0 = a0;
 809         if (a2 > 0x7FFFFFFF || a2 == 0)
 810         {
 811                 v0 = 0;
 812                 pc0 = ra;
 813                 return;
 814         }
 815         if (a0 == 0)
 816         {
 817                 pc0 = ra;
 818                 return;
 819         }
 820         while ((s32)a2-- > 0) *p++ = (char)a1;
 821         a2 = 0;
 822         v0 = a0; pc0 = ra;
 823 }
 824
 825 void psxBios_memmove() { // 0x2c
 826         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 827         v0 = a0;
 828         if (a0 == 0 || a2 > 0x7FFFFFFF)
 829         {
 830                 pc0 = ra;
 831                 return;
 832         }
 833         if (p2 <= p1 && p2 + a2 > p1) {
 834                 a2++; // BUG: copy one more byte here
 835                 p1 += a2;
 836                 p2 += a2;
 837                 while ((s32)a2-- > 0) *--p1 = *--p2;
 838         } else {
 839                 while ((s32)a2-- > 0) *p1++ = *p2++;
 840         }
 841         pc0 = ra;
 842 }
 843
 844 void psxBios_memcmp() { // 0x2d
 845         psxBios_bcmp();
 846 }
 847
 848 void psxBios_memchr() { // 0x2e
 849         char *p = (char *)Ra0;
 850
 851         while ((s32)a2-- > 0) {
 852                 if (*p++ != (s8)a1) continue;
 853                 v0 = a0 + (p - (char *)Ra0 - 1);
 854                 pc0 = ra;
 855                 return;
 856         }
 857
 858         v0 = 0; pc0 = ra;
 859 }
 860
 861 void psxBios_rand() { // 0x2f
 862         u32 s = psxMu32(0x9010) * 1103515245 + 12345;
 863         v0 = (s >> 16) & 0x7fff;
 864         psxMu32ref(0x9010) = SWAPu32(s);
 865         pc0 = ra;
 866 }
 867
 868 void psxBios_srand() { // 0x30
 869         psxMu32ref(0x9010) = SWAPu32(a0);
 870         pc0 = ra;
 871 }
 872
 873 static u32 qscmpfunc, qswidth;
 874
 875 static inline int qscmp(char *a, char *b) {
 876         u32 sa0 = a0;
 877
 878         a0 = sa0 + (a - (char *)PSXM(sa0));
 879         a1 = sa0 + (b - (char *)PSXM(sa0));
 880
 881         softCall2(qscmpfunc);
 882
 883         a0 = sa0;
 884         return (s32)v0;
 885 }
 886
 887 static inline void qexchange(char *i, char *j) {
 888         char t;
 889         int n = qswidth;
 890
 891         do {
 892                 t = *i;
 893                 *i++ = *j;
 894                 *j++ = t;
 895         } while (--n);
 896 }
 897
 898 static inline void q3exchange(char *i, char *j, char *k) {
 899         char t;
 900         int n = qswidth;
 901
 902         do {
 903                 t = *i;
 904                 *i++ = *k;
 905                 *k++ = *j;
 906                 *j++ = t;
 907         } while (--n);
 908 }
 909
 910 static void qsort_main(char *a, char *l) {
 911         char *i, *j, *lp, *hp;
 912         int c;
 913         unsigned int n;
 914
 915 start:
 916         if ((n = l - a) <= qswidth)
 917                 return;
 918         n = qswidth * (n / (2 * qswidth));
 919         hp = lp = a + n;
 920         i = a;
 921         j = l - qswidth;
 922         while (TRUE) {
 923                 if (i < lp) {
 924                         if ((c = qscmp(i, lp)) == 0) {
 925                                 qexchange(i, lp -= qswidth);
 926                                 continue;
 927                         }
 928                         if (c < 0) {
 929                                 i += qswidth;
 930                                 continue;
 931                         }
 932                 }
 933
 934 loop:
 935                 if (j > hp) {
 936                         if ((c = qscmp(hp, j)) == 0) {
 937                                 qexchange(hp += qswidth, j);
 938                                 goto loop;
 939                         }
 940                         if (c > 0) {
 941                                 if (i == lp) {
 942                                         q3exchange(i, hp += qswidth, j);
 943                                         i = lp += qswidth;
 944                                         goto loop;
 945                                 }
 946                                 qexchange(i, j);
 947                                 j -= qswidth;
 948                                 i += qswidth;
 949                                 continue;
 950                         }
 951                         j -= qswidth;
 952                         goto loop;
 953                 }
 954
 955                 if (i == lp) {
 956                         if (lp - a >= l - hp) {
 957                                 qsort_main(hp + qswidth, l);
 958                                 l = lp;
 959                         } else {
 960                                 qsort_main(a, lp);
 961                                 a = hp + qswidth;
 962                         }
 963                         goto start;
 964                 }
 965
 966                 q3exchange(j, lp -= qswidth, i);
 967                 j = hp -= qswidth;
 968         }
 969 }
 970
 971 void psxBios_qsort() { // 0x31
 972         qswidth = a2;
 973         qscmpfunc = a3;
 974         qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
 975
 976         pc0 = ra;
 977 }
 978
 979 void psxBios_malloc() { // 0x33
 980         unsigned int *chunk, *newchunk = NULL;
 981         unsigned int dsize = 0, csize, cstat;
 982         int colflag;
 983 #ifdef PSXBIOS_LOG
 984         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
 985 #endif
 986
 987         // scan through heap and combine free chunks of space
 988         chunk = heap_addr;
 989         colflag = 0;
 990         while(chunk < heap_end) {
 991                 // get size and status of actual chunk
 992                 csize = ((u32)*chunk) & 0xfffffffc;
 993                 cstat = ((u32)*chunk) & 1;
 994
 995                 // it's a free chunk
 996                 if(cstat == 1) {
 997                         if(colflag == 0) {
 998                                 newchunk = chunk;
 999                                 dsize = csize;
1000                                 colflag = 1;                    // let's begin a new collection of free memory
1001                         }
1002                         else dsize += (csize+4);        // add the new size including header
1003                 }
1004                 // not a free chunk: did we start a collection ?
1005                 else {
1006                         if(colflag == 1) {                      // collection is over
1007                                 colflag = 0;
1008                                 *newchunk = SWAP32(dsize | 1);
1009                         }
1010                 }
1011
1012                 // next chunk
1013                 chunk = (u32*)((uptr)chunk + csize + 4);
1014         }
1015         // if neccessary free memory on end of heap
1016         if (colflag == 1)
1017                 *newchunk = SWAP32(dsize | 1);
1018
1019         chunk = heap_addr;
1020         csize = ((u32)*chunk) & 0xfffffffc;
1021         cstat = ((u32)*chunk) & 1;
1022         dsize = (a0 + 3) & 0xfffffffc;
1023
1024         // exit on uninitialized heap
1025         if (chunk == NULL) {
1026                 SysPrintf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
1027                 v0 = 0;
1028                 pc0 = ra;
1029                 return;
1030         }
1031
1032         // search an unused chunk that is big enough until the end of the heap
1033         while ((dsize > csize || cstat == 0) && chunk < heap_end ) {
1034                 chunk = (u32*)((uptr)chunk + csize + 4);
1035                 csize = ((u32)*chunk) & 0xfffffffc;
1036                 cstat = ((u32)*chunk) & 1;
1037         }
1038
1039         // catch out of memory
1040         if(chunk >= heap_end) { SysPrintf("malloc %x,%x: Out of memory error!\n", v0, a0); v0 = 0; pc0 = ra; return; }
1041
1042         // allocate memory
1043         if(dsize == csize) {
1044                 // chunk has same size
1045                 *chunk &= 0xfffffffc;
1046         }
1047         else {
1048                 // split free chunk
1049                 *chunk = SWAP32(dsize);
1050                 newchunk = (u32*)((uptr)chunk + dsize + 4);
1051                 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
1052         }
1053
1054         // return pointer to allocated memory
1055         v0 = ((unsigned long)chunk - (unsigned long)psxM) + 4;
1056         v0|= 0x80000000;
1057         SysPrintf ("malloc %x,%x\n", v0, a0);
1058         pc0 = ra;
1059 }
1060
1061 void psxBios_free() { // 0x34
1062
1063 #ifdef PSXBIOS_LOG
1064         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1065 #endif
1066
1067         SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1068
1069         *(u32*)(Ra0-4) |= 1;    // set chunk to free
1070         pc0 = ra;
1071 }
1072
1073 void psxBios_calloc() { // 0x37
1074         void *pv0;
1075 #ifdef PSXBIOS_LOG
1076         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1077 #endif
1078
1079         a0 = a0 * a1;
1080         psxBios_malloc();
1081         pv0 = Rv0;
1082         if (pv0)
1083                 memset(pv0, 0, a0);
1084 }
1085
1086 void psxBios_realloc() { // 0x38
1087         u32 block = a0;
1088         u32 size = a1;
1089 #ifdef PSXBIOS_LOG
1090         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1091 #endif
1092
1093         a0 = block;
1094         /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1095         if (block == 0)
1096         {
1097                 psxBios_malloc();
1098         }
1099         /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1100         else if (size == 0)
1101         {
1102                 psxBios_free();
1103         }
1104         /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1105         /* Note that it is not quite implemented this way here. */
1106         else
1107         {
1108                 psxBios_free();
1109                 a0 = size;
1110                 psxBios_malloc();
1111         }
1112 }
1113
1114
1115 /* InitHeap(void *block , int n) */
1116 void psxBios_InitHeap() { // 0x39
1117         unsigned int size;
1118
1119 #ifdef PSXBIOS_LOG
1120         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1121 #endif
1122
1123         if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1124         else size = a1;
1125
1126         size &= 0xfffffffc;
1127
1128         heap_addr = (u32 *)Ra0;
1129         heap_end = (u32 *)((u8 *)heap_addr + size);
1130         *heap_addr = SWAP32(size | 1);
1131
1132         SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
1133
1134         pc0 = ra;
1135 }
1136
1137 void psxBios_getchar() { //0x3b
1138         v0 = getchar(); pc0 = ra;
1139 }
1140
1141 void psxBios_printf() { // 0x3f
1142         char tmp[1024];
1143         char tmp2[1024];
1144         u32 save[4];
1145         char *ptmp = tmp;
1146         int n=1, i=0, j;
1147         void *psp;
1148
1149         psp = PSXM(sp);
1150         if (psp) {
1151                 memcpy(save, psp, 4 * 4);
1152                 psxMu32ref(sp) = SWAP32((u32)a0);
1153                 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1154                 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1155                 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1156         }
1157
1158         while (Ra0[i]) {
1159                 switch (Ra0[i]) {
1160                         case '%':
1161                                 j = 0;
1162                                 tmp2[j++] = '%';
1163 _start:
1164                                 switch (Ra0[++i]) {
1165                                         case '.':
1166                                         case 'l':
1167                                                 tmp2[j++] = Ra0[i]; goto _start;
1168                                         default:
1169                                                 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1170                                                         tmp2[j++] = Ra0[i];
1171                                                         goto _start;
1172                                                 }
1173                                                 break;
1174                                 }
1175                                 tmp2[j++] = Ra0[i];
1176                                 tmp2[j] = 0;
1177
1178                                 switch (Ra0[i]) {
1179                                         case 'f': case 'F':
1180                                                 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1181                                         case 'a': case 'A':
1182                                         case 'e': case 'E':
1183                                         case 'g': case 'G':
1184                                                 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1185                                         case 'p':
1186                                         case 'i': case 'u':
1187                                         case 'd': case 'D':
1188                                         case 'o': case 'O':
1189                                         case 'x': case 'X':
1190                                                 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1191                                         case 'c':
1192                                                 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1193                                         case 's':
1194                                                 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1195                                         case '%':
1196                                                 *ptmp++ = Ra0[i]; break;
1197                                 }
1198                                 i++;
1199                                 break;
1200                         default:
1201                                 *ptmp++ = Ra0[i++];
1202                 }
1203         }
1204         *ptmp = 0;
1205
1206         if (psp)
1207                 memcpy(psp, save, 4 * 4);
1208
1209         SysPrintf("%s", tmp);
1210
1211         pc0 = ra;
1212 }
1213
1214 void psxBios_format() { // 0x41
1215         if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1216         {
1217                 CreateMcd(Config.Mcd1);
1218                 LoadMcd(1, Config.Mcd1);
1219                 v0 = 1;
1220         }
1221         else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1222         {
1223                 CreateMcd(Config.Mcd2);
1224                 LoadMcd(2, Config.Mcd2);
1225                 v0 = 1;
1226         }
1227         else
1228         {
1229                 v0 = 0;
1230         }
1231         pc0 = ra;
1232 }
1233
1234 /*
1235  *      long Load(char *name, struct EXEC *header);
1236  */
1237
1238 void psxBios_Load() { // 0x42
1239         EXE_HEADER eheader;
1240         void *pa1;
1241
1242 #ifdef PSXBIOS_LOG
1243         PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1244 #endif
1245
1246         pa1 = Ra1;
1247         if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1248                 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
1249                 v0 = 1;
1250         } else v0 = 0;
1251
1252         pc0 = ra;
1253 }
1254
1255 /*
1256  *      int Exec(struct EXEC *header , int argc , char **argv);
1257  */
1258
1259 void psxBios_Exec() { // 43
1260         EXEC *header = (EXEC*)Ra0;
1261         u32 tmp;
1262
1263 #ifdef PSXBIOS_LOG
1264         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1265 #endif
1266
1267         header->_sp = sp;
1268         header->_fp = fp;
1269         header->_sp = sp;
1270         header->_gp = gp;
1271         header->ret = ra;
1272         header->base = s0;
1273
1274         if (header->S_addr != 0) {
1275                 tmp = header->S_addr + header->s_size;
1276                 sp = tmp;
1277                 fp = sp;
1278         }
1279
1280         gp = header->gp0;
1281
1282         s0 = a0;
1283
1284         a0 = a1;
1285         a1 = a2;
1286
1287         ra = 0x8000;
1288         pc0 = header->_pc0;
1289 }
1290
1291 void psxBios_FlushCache() { // 44
1292 #ifdef PSXBIOS_LOG
1293         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1294 #endif
1295
1296         pc0 = ra;
1297 }
1298
1299 void psxBios_GPU_dw() { // 0x46
1300         int size;
1301         s32 *ptr;
1302
1303 #ifdef PSXBIOS_LOG
1304         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1305 #endif
1306
1307         GPU_writeData(0xa0000000);
1308         GPU_writeData((a1<<16)|(a0&0xffff));
1309         GPU_writeData((a3<<16)|(a2&0xffff));
1310         size = (a2*a3+1)/2;
1311         ptr = (s32*)PSXM(Rsp[4]);  //that is correct?
1312         do {
1313                 GPU_writeData(SWAP32(*ptr));
1314                 ptr++;
1315         } while(--size);
1316
1317         pc0 = ra;
1318 }
1319
1320 void psxBios_mem2vram() { // 0x47
1321         int size;
1322
1323         GPU_writeData(0xa0000000);
1324         GPU_writeData((a1<<16)|(a0&0xffff));
1325         GPU_writeData((a3<<16)|(a2&0xffff));
1326         size = (a2*a3+1)/2;
1327         GPU_writeStatus(0x04000002);
1328         psxHwWrite32(0x1f8010f4,0);
1329         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1330         psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1331         psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1332         psxHwWrite32(0x1f8010a8,0x01000201);
1333
1334         pc0 = ra;
1335 }
1336
1337 void psxBios_SendGPU() { // 0x48
1338         GPU_writeStatus(a0);
1339         gpuSyncPluginSR();
1340         pc0 = ra;
1341 }
1342
1343 void psxBios_GPU_cw() { // 0x49
1344         GPU_writeData(a0);
1345         pc0 = ra;
1346 }
1347
1348 void psxBios_GPU_cwb() { // 0x4a
1349         s32 *ptr = (s32*)Ra0;
1350         int size = a1;
1351         while(size--) {
1352                 GPU_writeData(SWAP32(*ptr));
1353                 ptr++;
1354         }
1355
1356         pc0 = ra;
1357 }
1358
1359 void psxBios_GPU_SendPackets() { //4b:
1360         GPU_writeStatus(0x04000002);
1361         psxHwWrite32(0x1f8010f4,0);
1362         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1363         psxHwWrite32(0x1f8010a0,a0);
1364         psxHwWrite32(0x1f8010a4,0);
1365         psxHwWrite32(0x1f8010a8,0x010000401);
1366         pc0 = ra;
1367 }
1368
1369 void psxBios_sys_a0_4c() { // 0x4c GPU relate
1370         psxHwWrite32(0x1f8010a8,0x00000401);
1371         GPU_writeData(0x0400000);
1372         GPU_writeData(0x0200000);
1373         GPU_writeData(0x0100000);
1374         v0 = 0x1f801814;
1375         pc0 = ra;
1376 }
1377
1378 void psxBios_GPU_GetGPUStatus() { // 0x4d
1379         v0 = GPU_readStatus();
1380         pc0 = ra;
1381 }
1382
1383 #undef s_addr
1384
1385 void psxBios_LoadExec() { // 51
1386         EXEC *header = (EXEC*)PSXM(0xf000);
1387         u32 s_addr, s_size;
1388
1389 #ifdef PSXBIOS_LOG
1390         PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1391 #endif
1392         s_addr = a1; s_size = a2;
1393
1394         a1 = 0xf000;
1395         psxBios_Load();
1396
1397         header->S_addr = s_addr;
1398         header->s_size = s_size;
1399
1400         a0 = 0xf000; a1 = 0; a2 = 0;
1401         psxBios_Exec();
1402 }
1403
1404 void psxBios__bu_init() { // 70
1405 #ifdef PSXBIOS_LOG
1406         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1407 #endif
1408
1409         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1410         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1411
1412         pc0 = ra;
1413 }
1414
1415 void psxBios__96_init() { // 71
1416 #ifdef PSXBIOS_LOG
1417         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1418 #endif
1419
1420         pc0 = ra;
1421 }
1422
1423 void psxBios__96_remove() { // 72
1424 #ifdef PSXBIOS_LOG
1425         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1426 #endif
1427
1428         pc0 = ra;
1429 }
1430
1431 void psxBios_SetMem() { // 9f
1432         u32 new = psxHu32(0x1060);
1433
1434 #ifdef PSXBIOS_LOG
1435         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1436 #endif
1437
1438         switch(a0) {
1439                 case 2:
1440                         psxHu32ref(0x1060) = SWAP32(new);
1441                         psxMu32ref(0x060) = a0;
1442                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1443                         break;
1444
1445                 case 8:
1446                         psxHu32ref(0x1060) = SWAP32(new | 0x300);
1447                         psxMu32ref(0x060) = a0;
1448                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1449
1450                 default:
1451                         SysPrintf("Effective memory must be 2/8 MBytes\n");
1452                 break;
1453         }
1454
1455         pc0 = ra;
1456 }
1457
1458 void psxBios__card_info() { // ab
1459 #ifdef PSXBIOS_LOG
1460         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1461 #endif
1462         u32 ret;
1463         card_active_chan = a0;
1464
1465         switch (card_active_chan)
1466         {
1467         case 0x00: case 0x01: case 0x02: case 0x03:
1468                 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1469                 break;
1470         case 0x10: case 0x11: case 0x12: case 0x13:
1471                 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1472                 break;
1473         default:
1474 #ifdef PSXBIOS_LOG
1475                 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1476 #endif
1477                 ret = 0x11;
1478                 break;
1479         }
1480
1481 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1482 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1483         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1484         DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
1485
1486         v0 = 1; pc0 = ra;
1487 }
1488
1489 void psxBios__card_load() { // ac
1490 #ifdef PSXBIOS_LOG
1491         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1492 #endif
1493
1494         card_active_chan = a0;
1495
1496 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1497         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1498
1499         v0 = 1; pc0 = ra;
1500 }
1501
1502 /* System calls B0 */
1503
1504 void psxBios_SetRCnt() { // 02
1505 #ifdef PSXBIOS_LOG
1506         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1507 #endif
1508
1509         a0&= 0x3;
1510         if (a0 != 3) {
1511                 u32 mode=0;
1512
1513                 psxRcntWtarget(a0, a1);
1514                 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1515                 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1516                 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1517                 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1518                 else         { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1519
1520                 psxRcntWmode(a0, mode);
1521         }
1522         pc0 = ra;
1523 }
1524
1525 void psxBios_GetRCnt() { // 03
1526 #ifdef PSXBIOS_LOG
1527         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1528 #endif
1529
1530         a0&= 0x3;
1531         if (a0 != 3) v0 = psxRcntRcount(a0);
1532         else v0 = 0;
1533         pc0 = ra;
1534 }
1535
1536 void psxBios_StartRCnt() { // 04
1537 #ifdef PSXBIOS_LOG
1538         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1539 #endif
1540
1541         a0&= 0x3;
1542         if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1543         else psxHu32ref(0x1074)|= SWAPu32(0x1);
1544         v0 = 1; pc0 = ra;
1545 }
1546
1547 void psxBios_StopRCnt() { // 05
1548 #ifdef PSXBIOS_LOG
1549         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1550 #endif
1551
1552         a0&= 0x3;
1553         if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1554         else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1555         pc0 = ra;
1556 }
1557
1558 void psxBios_ResetRCnt() { // 06
1559 #ifdef PSXBIOS_LOG
1560         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1561 #endif
1562
1563         a0&= 0x3;
1564         if (a0 != 3) {
1565                 psxRcntWmode(a0, 0);
1566                 psxRcntWtarget(a0, 0);
1567                 psxRcntWcount(a0, 0);
1568         }
1569         pc0 = ra;
1570 }
1571
1572
1573 /* gets ev for use with Event */
1574 #define GetEv() \
1575         ev = (a0 >> 24) & 0xf; \
1576         if (ev == 0xf) ev = 0x5; \
1577         ev*= 32; \
1578         ev+= a0&0x1f;
1579
1580 /* gets spec for use with Event */
1581 #define GetSpec() \
1582         spec = 0; \
1583         switch (a1) { \
1584                 case 0x0301: spec = 16; break; \
1585                 case 0x0302: spec = 17; break; \
1586                 default: \
1587                         for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1588                         break; \
1589         }
1590
1591 void psxBios_DeliverEvent() { // 07
1592         int ev, spec;
1593         int i;
1594
1595         GetEv();
1596         GetSpec();
1597
1598 #ifdef PSXBIOS_LOG
1599         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1600 #endif
1601
1602         DeliverEvent(ev, spec);
1603
1604         pc0 = ra;
1605 }
1606
1607 void psxBios_OpenEvent() { // 08
1608         int ev, spec;
1609         int i;
1610
1611         GetEv();
1612         GetSpec();
1613
1614 #ifdef PSXBIOS_LOG
1615         PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1616 #endif
1617
1618         Event[ev][spec].status = EvStWAIT;
1619         Event[ev][spec].mode = a2;
1620         Event[ev][spec].fhandler = a3;
1621
1622         v0 = ev | (spec << 8);
1623         pc0 = ra;
1624 }
1625
1626 void psxBios_CloseEvent() { // 09
1627         int ev, spec;
1628
1629         ev   = a0 & 0xff;
1630         spec = (a0 >> 8) & 0xff;
1631
1632 #ifdef PSXBIOS_LOG
1633         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1634 #endif
1635
1636         Event[ev][spec].status = EvStUNUSED;
1637
1638         v0 = 1; pc0 = ra;
1639 }
1640
1641 void psxBios_WaitEvent() { // 0a
1642         int ev, spec;
1643
1644         ev   = a0 & 0xff;
1645         spec = (a0 >> 8) & 0xff;
1646 #ifdef PSXBIOS_LOG
1647         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1648 #endif
1649         if (Event[ev][spec].status == EvStUNUSED)
1650         {
1651                 v0 = 0;
1652                 pc0 = ra;
1653                 return;
1654         }
1655
1656         if (Event[ev][spec].status == EvStALREADY)
1657         {
1658                 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1659                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1660                 v0 = 1;
1661                 pc0 = ra;
1662                 return;
1663         }
1664
1665         v0 = 0;
1666         pc0 = ra;
1667 }
1668
1669 void psxBios_TestEvent() { // 0b
1670         int ev, spec;
1671
1672         ev   = a0 & 0xff;
1673         spec = (a0 >> 8) & 0xff;
1674
1675         if (Event[ev][spec].status == EvStALREADY) {
1676                 Event[ev][spec].status = EvStACTIVE; v0 = 1;
1677         } else v0 = 0;
1678
1679 #ifdef PSXBIOS_LOG
1680         PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1681 #endif
1682
1683         pc0 = ra;
1684 }
1685
1686 void psxBios_EnableEvent() { // 0c
1687         int ev, spec;
1688
1689         ev   = a0 & 0xff;
1690         spec = (a0 >> 8) & 0xff;
1691
1692 #ifdef PSXBIOS_LOG
1693         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1694 #endif
1695
1696         Event[ev][spec].status = EvStACTIVE;
1697
1698         v0 = 1; pc0 = ra;
1699 }
1700
1701 void psxBios_DisableEvent() { // 0d
1702         int ev, spec;
1703
1704         ev   = a0 & 0xff;
1705         spec = (a0 >> 8) & 0xff;
1706
1707 #ifdef PSXBIOS_LOG
1708         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1709 #endif
1710
1711         Event[ev][spec].status = EvStWAIT;
1712
1713         v0 = 1; pc0 = ra;
1714 }
1715
1716 /*
1717  *      long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1718  */
1719
1720 void psxBios_OpenTh() { // 0e
1721         int th;
1722
1723         for (th=1; th<8; th++)
1724         {
1725                 if (Thread[th].status == 0) break;
1726
1727         }
1728         if (th == 8) {
1729                 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1730                 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1731 #ifdef PSXBIOS_LOG
1732                 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1733 #endif
1734                 v0 = 0xffffffff;
1735                 pc0 = ra;
1736                 return;
1737         }
1738 #ifdef PSXBIOS_LOG
1739         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1740 #endif
1741
1742         Thread[th].status = 1;
1743         Thread[th].func    = a0;
1744         Thread[th].reg[29] = a1;
1745         Thread[th].reg[28] = a2;
1746
1747         v0 = th; pc0 = ra;
1748 }
1749
1750 /*
1751  *      int CloseTh(long thread);
1752  */
1753
1754 void psxBios_CloseTh() { // 0f
1755         int th = a0 & 0xff;
1756
1757 #ifdef PSXBIOS_LOG
1758         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1759 #endif
1760
1761         if (Thread[th].status == 0) {
1762                 v0 = 0;
1763         } else {
1764                 Thread[th].status = 0;
1765                 v0 = 1;
1766         }
1767
1768         pc0 = ra;
1769 }
1770
1771 /*
1772  *      int ChangeTh(long thread);
1773  */
1774
1775 void psxBios_ChangeTh() { // 10
1776         int th = a0 & 0xff;
1777
1778 #ifdef PSXBIOS_LOG
1779 //      PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1780 #endif
1781
1782         if (Thread[th].status == 0 || CurThread == th) {
1783                 v0 = 0;
1784
1785                 pc0 = ra;
1786         } else {
1787                 v0 = 1;
1788
1789                 if (Thread[CurThread].status == 2) {
1790                         Thread[CurThread].status = 1;
1791                         Thread[CurThread].func = ra;
1792                         memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1793                 }
1794
1795                 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1796                 pc0 = Thread[th].func;
1797                 Thread[th].status = 2;
1798                 CurThread = th;
1799         }
1800 }
1801
1802 void psxBios_InitPAD() { // 0x12
1803 #ifdef PSXBIOS_LOG
1804         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1805 #endif
1806
1807         pad_buf1 = (char*)Ra0;
1808         pad_buf1len = a1;
1809         pad_buf2 = (char*)Ra2;
1810         pad_buf2len = a3;
1811
1812         v0 = 1; pc0 = ra;
1813 }
1814
1815 void psxBios_StartPAD() { // 13
1816 #ifdef PSXBIOS_LOG
1817         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1818 #endif
1819
1820         psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1821         psxRegs.CP0.n.Status |= 0x401;
1822         pc0 = ra;
1823 }
1824
1825 void psxBios_StopPAD() { // 14
1826 #ifdef PSXBIOS_LOG
1827         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1828 #endif
1829         if (pad_buf == 0){
1830         pad_buf1 = NULL;
1831         pad_buf2 = NULL;
1832         }
1833         pc0 = ra;
1834 }
1835
1836 void psxBios_PAD_init() { // 15
1837 #ifdef PSXBIOS_LOG
1838         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1839 #endif
1840         if (!(a0 == 0x20000000 || a0 == 0x20000001))
1841         {
1842                 v0 = 0;
1843                 pc0 = ra;
1844                 return;
1845         }
1846         psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1847         pad_buf = (int *)Ra1;
1848         *pad_buf = -1;
1849         psxRegs.CP0.n.Status |= 0x401;
1850         v0 = 2;
1851         pc0 = ra;
1852 }
1853
1854 void psxBios_PAD_dr() { // 16
1855 #ifdef PSXBIOS_LOG
1856         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1857 #endif
1858
1859         v0 = -1; pc0 = ra;
1860 }
1861
1862 void psxBios_ReturnFromException() { // 17
1863         LoadRegs();
1864
1865         pc0 = psxRegs.CP0.n.EPC;
1866         if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1867
1868         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1869                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1870 }
1871
1872 void psxBios_ResetEntryInt() { // 18
1873 #ifdef PSXBIOS_LOG
1874         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1875 #endif
1876
1877         jmp_int = NULL;
1878         pc0 = ra;
1879 }
1880
1881 void psxBios_HookEntryInt() { // 19
1882 #ifdef PSXBIOS_LOG
1883         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1884 #endif
1885
1886         jmp_int = (u32*)Ra0;
1887         pc0 = ra;
1888 }
1889
1890 void psxBios_UnDeliverEvent() { // 0x20
1891         int ev, spec;
1892         int i;
1893
1894         GetEv();
1895         GetSpec();
1896
1897 #ifdef PSXBIOS_LOG
1898         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1899 #endif
1900
1901         if (Event[ev][spec].status == EvStALREADY &&
1902                 Event[ev][spec].mode == EvMdNOINTR)
1903                 Event[ev][spec].status = EvStACTIVE;
1904
1905         pc0 = ra;
1906 }
1907
1908 char ffile[64], *pfile;
1909 int nfile;
1910 static void buopen(int mcd, u8 *ptr, u8 *cfg)
1911 {
1912         int i;
1913         u8 *fptr = ptr;
1914
1915         strcpy(FDesc[1 + mcd].name, Ra0+5);
1916         FDesc[1 + mcd].offset = 0;
1917         FDesc[1 + mcd].mode   = a1;
1918
1919         for (i=1; i<16; i++) {
1920                 fptr += 128;
1921                 if ((*fptr & 0xF0) != 0x50) continue;
1922                 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
1923                 FDesc[1 + mcd].mcfile = i;
1924                 SysPrintf("open %s\n", fptr+0xa);
1925                 v0 = 1 + mcd;
1926                 break;
1927         }
1928         if (a1 & 0x200 && v0 == -1) { /* FCREAT */
1929                 fptr = ptr;
1930                 for (i=1; i<16; i++) {
1931                         int j, xor, nblk = a1 >> 16;
1932                         u8 *pptr, *fptr2;
1933
1934                         fptr += 128;
1935                         if ((*fptr & 0xF0) != 0xa0) continue;
1936
1937                         FDesc[1 + mcd].mcfile = i;
1938                         fptr[0] = 0x51;
1939                         fptr[4] = 0x00;
1940                         fptr[5] = 0x20 * nblk;
1941                         fptr[6] = 0x00;
1942                         fptr[7] = 0x00;
1943                         strcpy(fptr+0xa, FDesc[1 + mcd].name);
1944                         pptr = fptr2 = fptr;
1945                         for(j=2; j<=nblk; j++) {
1946                                 int k;
1947                                 for(i++; i<16; i++) {
1948                                         fptr2 += 128;
1949
1950                                         memset(fptr2, 0, 128);
1951                                         fptr2[0] = j < nblk ? 0x52 : 0x53;
1952                                         pptr[8] = i - 1;
1953                                         pptr[9] = 0;
1954                                         for (k=0, xor=0; k<127; k++) xor^= pptr[k];
1955                                         pptr[127] = xor;
1956                                         pptr = fptr2;
1957                                         break;
1958                                 }
1959                                 /* shouldn't this return ENOSPC if i == 16? */
1960                         }
1961                         pptr[8] = pptr[9] = 0xff;
1962                         for (j=0, xor=0; j<127; j++) xor^= pptr[j];
1963                         pptr[127] = xor;
1964                         SysPrintf("openC %s %d\n", ptr, nblk);
1965                         v0 = 1 + mcd;
1966                         /* just go ahead and resave them all */
1967                         SaveMcd(cfg, ptr, 128, 128 * 15);
1968                         break;
1969                 }
1970                 /* shouldn't this return ENOSPC if i == 16? */
1971         }
1972 }
1973
1974 /*
1975  *      int open(char *name , int mode);
1976  */
1977
1978 void psxBios_open() { // 0x32
1979         int i;
1980         char *ptr;
1981         void *pa0 = Ra0;
1982
1983 #ifdef PSXBIOS_LOG
1984         PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
1985 #endif
1986
1987         v0 = -1;
1988
1989         if (pa0) {
1990                 if (!strncmp(pa0, "bu00", 4)) {
1991                         buopen(1, Mcd1Data, Config.Mcd1);
1992                 }
1993
1994                 if (!strncmp(pa0, "bu10", 4)) {
1995                         buopen(2, Mcd2Data, Config.Mcd2);
1996                 }
1997         }
1998
1999         pc0 = ra;
2000 }
2001
2002 /*
2003  *      int lseek(int fd , int offset , int whence);
2004  */
2005
2006 void psxBios_lseek() { // 0x33
2007 #ifdef PSXBIOS_LOG
2008         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2009 #endif
2010
2011         switch (a2) {
2012                 case 0: // SEEK_SET
2013                         FDesc[a0].offset = a1;
2014                         v0 = a1;
2015 //                      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2016 //                      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2017                         break;
2018
2019                 case 1: // SEEK_CUR
2020                         FDesc[a0].offset+= a1;
2021                         v0 = FDesc[a0].offset;
2022                         break;
2023         }
2024
2025         pc0 = ra;
2026 }
2027
2028
2029 /*
2030  *      int read(int fd , void *buf , int nbytes);
2031  */
2032
2033 void psxBios_read() { // 0x34
2034         char *ptr;
2035         void *pa1 = Ra1;
2036
2037 #ifdef PSXBIOS_LOG
2038         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2039 #endif
2040
2041         v0 = -1;
2042
2043         if (pa1) {
2044                 switch (a0) {
2045                         case 2: buread(pa1, 1, a2); break;
2046                         case 3: buread(pa1, 2, a2); break;
2047                 }
2048         }
2049
2050         pc0 = ra;
2051 }
2052
2053 /*
2054  *      int write(int fd , void *buf , int nbytes);
2055  */
2056
2057 void psxBios_write() { // 0x35/0x03
2058         char *ptr;
2059         void *pa1 = Ra1;
2060
2061 #ifdef PSXBIOS_LOG
2062         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2063 #endif
2064
2065         v0 = -1;
2066         if (!pa1) {
2067                 pc0 = ra;
2068                 return;
2069         }
2070
2071         if (a0 == 1) { // stdout
2072                 char *ptr = pa1;
2073
2074                 v0 = a2;
2075                 while (a2 > 0) {
2076                         SysPrintf("%c", *ptr++); a2--;
2077                 }
2078                 pc0 = ra; return;
2079         }
2080
2081         switch (a0) {
2082                 case 2: buwrite(pa1, 1, a2); break;
2083                 case 3: buwrite(pa1, 2, a2); break;
2084         }
2085
2086         pc0 = ra;
2087 }
2088
2089 /*
2090  *      int close(int fd);
2091  */
2092
2093 void psxBios_close() { // 0x36
2094 #ifdef PSXBIOS_LOG
2095         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2096 #endif
2097
2098         v0 = a0;
2099         pc0 = ra;
2100 }
2101
2102 void psxBios_putchar() { // 3d
2103         SysPrintf("%c", (char)a0);
2104         pc0 = ra;
2105 }
2106
2107 void psxBios_puts() { // 3e/3f
2108         SysPrintf("%s", Ra0);
2109         pc0 = ra;
2110 }
2111
2112 char ffile[64], *pfile;
2113 int nfile;
2114
2115 #define bufile(mcd) { \
2116         while (nfile < 16) { \
2117                 int match=1; \
2118  \
2119                 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
2120                 nfile++; \
2121                 if ((*ptr & 0xF0) != 0x50) continue; \
2122                 /* Bug link files show up as free block. */ \
2123                 if (!ptr[0xa]) continue; \
2124                 ptr+= 0xa; \
2125                 if (pfile[0] == 0) { \
2126                         strncpy(dir->name, ptr, sizeof(dir->name)); \
2127                         dir->name[sizeof(dir->name) - 1] = '\0'; \
2128                 } else for (i=0; i<20; i++) { \
2129                         if (pfile[i] == ptr[i]) { \
2130                                                                 dir->name[i] = ptr[i]; continue; } \
2131                         if (pfile[i] == '?') { \
2132                                 dir->name[i] = ptr[i]; continue; } \
2133                         if (pfile[i] == '*') { \
2134                                 strcpy(dir->name+i, ptr+i); break; } \
2135                         match = 0; break; \
2136                 } \
2137                 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
2138                 if (match == 0) { continue; } \
2139                 dir->size = 8192; \
2140                 v0 = _dir; \
2141                 break; \
2142         } \
2143 }
2144
2145 /*
2146  *      struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2147  */
2148
2149 void psxBios_firstfile() { // 42
2150         struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
2151         void *pa0 = Ra0;
2152         u32 _dir = a1;
2153         char *ptr;
2154         int i;
2155
2156 #ifdef PSXBIOS_LOG
2157         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2158 #endif
2159
2160         v0 = 0;
2161
2162         if (pa0) {
2163                 strcpy(ffile, pa0);
2164                 pfile = ffile+5;
2165                 nfile = 1;
2166                 if (!strncmp(pa0, "bu00", 4)) {
2167                         // firstfile() calls _card_read() internally, so deliver it's event
2168                         DeliverEvent(0x11, 0x2);
2169                         bufile(1);
2170                 } else if (!strncmp(pa0, "bu10", 4)) {
2171                         // firstfile() calls _card_read() internally, so deliver it's event
2172                         DeliverEvent(0x11, 0x2);
2173                         bufile(2);
2174                 }
2175         }
2176
2177         pc0 = ra;
2178 }
2179
2180 /*
2181  *      struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2182  */
2183
2184 void psxBios_nextfile() { // 43
2185         struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2186         u32 _dir = a0;
2187         char *ptr;
2188         int i;
2189
2190 #ifdef PSXBIOS_LOG
2191         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2192 #endif
2193
2194         v0 = 0;
2195
2196         if (!strncmp(ffile, "bu00", 4)) {
2197                 bufile(1);
2198         }
2199
2200         if (!strncmp(ffile, "bu10", 4)) {
2201                 bufile(2);
2202         }
2203
2204         pc0 = ra;
2205 }
2206
2207 #define burename(mcd) { \
2208         for (i=1; i<16; i++) { \
2209                 int namelen, j, xor = 0; \
2210                 ptr = Mcd##mcd##Data + 128 * i; \
2211                 if ((*ptr & 0xF0) != 0x50) continue; \
2212                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2213                 namelen = strlen(Ra1+5); \
2214                 memcpy(ptr+0xa, Ra1+5, namelen); \
2215                 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2216                 for (j=0; j<127; j++) xor^= ptr[j]; \
2217                 ptr[127] = xor; \
2218                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2219                 v0 = 1; \
2220                 break; \
2221         } \
2222 }
2223
2224 /*
2225  *      int rename(char *old, char *new);
2226  */
2227
2228 void psxBios_rename() { // 44
2229         void *pa0 = Ra0;
2230         void *pa1 = Ra1;
2231         char *ptr;
2232         int i;
2233
2234 #ifdef PSXBIOS_LOG
2235         PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2236 #endif
2237
2238         v0 = 0;
2239
2240         if (pa0 && pa1) {
2241                 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2242                         burename(1);
2243                 }
2244
2245                 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2246                         burename(2);
2247                 }
2248         }
2249
2250         pc0 = ra;
2251 }
2252
2253
2254 #define budelete(mcd) { \
2255         for (i=1; i<16; i++) { \
2256                 ptr = Mcd##mcd##Data + 128 * i; \
2257                 if ((*ptr & 0xF0) != 0x50) continue; \
2258                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2259                 *ptr = (*ptr & 0xf) | 0xA0; \
2260                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2261                 SysPrintf("delete %s\n", ptr+0xa); \
2262                 v0 = 1; \
2263                 break; \
2264         } \
2265 }
2266
2267 /*
2268  *      int delete(char *name);
2269  */
2270
2271 void psxBios_delete() { // 45
2272         void *pa0 = Ra0;
2273         char *ptr;
2274         int i;
2275
2276 #ifdef PSXBIOS_LOG
2277         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2278 #endif
2279
2280         v0 = 0;
2281
2282         if (pa0) {
2283                 if (!strncmp(pa0, "bu00", 4)) {
2284                         budelete(1);
2285                 }
2286
2287                 if (!strncmp(pa0, "bu10", 4)) {
2288                         budelete(2);
2289                 }
2290         }
2291
2292         pc0 = ra;
2293 }
2294
2295 void psxBios_InitCARD() { // 4a
2296 #ifdef PSXBIOS_LOG
2297         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2298 #endif
2299
2300         CardState = 0;
2301
2302         pc0 = ra;
2303 }
2304
2305 void psxBios_StartCARD() { // 4b
2306 #ifdef PSXBIOS_LOG
2307         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2308 #endif
2309
2310         if (CardState == 0) CardState = 1;
2311
2312         pc0 = ra;
2313 }
2314
2315 void psxBios_StopCARD() { // 4c
2316 #ifdef PSXBIOS_LOG
2317         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2318 #endif
2319
2320         if (CardState == 1) CardState = 0;
2321
2322         pc0 = ra;
2323 }
2324
2325 void psxBios__card_write() { // 0x4e
2326         void *pa2 = Ra2;
2327         int port;
2328
2329 #ifdef PSXBIOS_LOG
2330         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2331 #endif
2332         /* Function also accepts sector 400h (a bug) */
2333         if (!(a1 <= 0x400))
2334         {
2335                 /* Invalid sectors */
2336                 v0 = 0; pc0 = ra;
2337                 return;
2338         }
2339         card_active_chan = a0;
2340         port = a0 >> 4;
2341
2342         if (pa2) {
2343                 if (port == 0) {
2344                         memcpy(Mcd1Data + a1 * 128, pa2, 128);
2345                         SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2346                 } else {
2347                         memcpy(Mcd2Data + a1 * 128, pa2, 128);
2348                         SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2349                 }
2350         }
2351
2352         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2353 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2354
2355         v0 = 1; pc0 = ra;
2356 }
2357
2358 void psxBios__card_read() { // 0x4f
2359         void *pa2 = Ra2;
2360         int port;
2361
2362 #ifdef PSXBIOS_LOG
2363         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2364 #endif
2365         /* Function also accepts sector 400h (a bug) */
2366         if (!(a1 <= 0x400))
2367         {
2368                 /* Invalid sectors */
2369                 v0 = 0; pc0 = ra;
2370                 return;
2371         }
2372         card_active_chan = a0;
2373         port = a0 >> 4;
2374
2375         if (pa2) {
2376                 if (port == 0) {
2377                         memcpy(pa2, Mcd1Data + a1 * 128, 128);
2378                 } else {
2379                         memcpy(pa2, Mcd2Data + a1 * 128, 128);
2380                 }
2381         }
2382
2383         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2384 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2385
2386         v0 = 1; pc0 = ra;
2387 }
2388
2389 void psxBios__new_card() { // 0x50
2390 #ifdef PSXBIOS_LOG
2391         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2392 #endif
2393
2394         pc0 = ra;
2395 }
2396
2397 void psxBios_Krom2RawAdd() { // 0x51
2398         int i = 0;
2399
2400         const u32 table_8140[][2] = {
2401                 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2402                 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2403                 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2404                 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2405                 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2406                 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2407                 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2408                 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2409                 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2410                 {0xffff, 0}
2411         };
2412
2413         const u32 table_889f[][2] = {
2414                 {0x889f, 0x3d68},  {0x8900, 0x40ec},  {0x897f, 0x4fb0},  {0x8a00, 0x56f4},
2415                 {0x8a7f, 0x65b8},  {0x8b00, 0x6cfc},  {0x8b7f, 0x7bc0},  {0x8c00, 0x8304},
2416                 {0x8c7f, 0x91c8},  {0x8d00, 0x990c},  {0x8d7f, 0xa7d0},  {0x8e00, 0xaf14},
2417                 {0x8e7f, 0xbdd8},  {0x8f00, 0xc51c},  {0x8f7f, 0xd3e0},  {0x9000, 0xdb24},
2418                 {0x907f, 0xe9e8},  {0x9100, 0xf12c},  {0x917f, 0xfff0},  {0x9200, 0x10734},
2419                 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2420                 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2421                 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2422                 {0xffff, 0}
2423         };
2424
2425         if (a0 >= 0x8140 && a0 <= 0x84be) {
2426                 while (table_8140[i][0] <= a0) i++;
2427                 a0 -= table_8140[i - 1][0];
2428                 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2429         } else if (a0 >= 0x889f && a0 <= 0x9872) {
2430                 while (table_889f[i][0] <= a0) i++;
2431                 a0 -= table_889f[i - 1][0];
2432                 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2433         } else {
2434                 v0 = 0xffffffff;
2435         }
2436
2437         pc0 = ra;
2438 }
2439
2440 void psxBios_GetC0Table() { // 56
2441 #ifdef PSXBIOS_LOG
2442         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2443 #endif
2444
2445         v0 = 0x674; pc0 = ra;
2446 }
2447
2448 void psxBios_GetB0Table() { // 57
2449 #ifdef PSXBIOS_LOG
2450         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2451 #endif
2452
2453         v0 = 0x874; pc0 = ra;
2454 }
2455
2456 void psxBios__card_chan() { // 0x58
2457 #ifdef PSXBIOS_LOG
2458         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2459 #endif
2460
2461         v0 = card_active_chan;
2462         pc0 = ra;
2463 }
2464
2465 void psxBios_ChangeClearPad() { // 5b
2466 #ifdef PSXBIOS_LOG
2467         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2468 #endif
2469
2470         pc0 = ra;
2471 }
2472
2473 /* System calls C0 */
2474
2475 /*
2476  * int SysEnqIntRP(int index , long *queue);
2477  */
2478
2479 void psxBios_SysEnqIntRP() { // 02
2480 #ifdef PSXBIOS_LOG
2481         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2482 #endif
2483
2484         SysIntRP[a0] = a1;
2485
2486         v0 = 0; pc0 = ra;
2487 }
2488
2489 /*
2490  * int SysDeqIntRP(int index , long *queue);
2491  */
2492
2493 void psxBios_SysDeqIntRP() { // 03
2494 #ifdef PSXBIOS_LOG
2495         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2496 #endif
2497
2498         SysIntRP[a0] = 0;
2499
2500         v0 = 0; pc0 = ra;
2501 }
2502
2503 void psxBios_ChangeClearRCnt() { // 0a
2504         u32 *ptr;
2505
2506 #ifdef PSXBIOS_LOG
2507         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2508 #endif
2509
2510         ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2511         v0 = *ptr;
2512         *ptr = a1;
2513
2514 //      psxRegs.CP0.n.Status|= 0x404;
2515         pc0 = ra;
2516 }
2517
2518 void psxBios_dummy() {
2519 #ifdef PSXBIOS_LOG
2520         PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2521 #endif
2522         pc0 = ra;
2523 }
2524
2525 void (*biosA0[256])();
2526 void (*biosB0[256])();
2527 void (*biosC0[256])();
2528
2529 #include "sjisfont.h"
2530
2531 void psxBiosInit() {
2532         u32 base, size;
2533         u32 *ptr;
2534         int i;
2535         uLongf len;
2536
2537         for(i = 0; i < 256; i++) {
2538                 biosA0[i] = NULL;
2539                 biosB0[i] = NULL;
2540                 biosC0[i] = NULL;
2541         }
2542         biosA0[0x3e] = psxBios_puts;
2543         biosA0[0x3f] = psxBios_printf;
2544
2545         biosB0[0x3d] = psxBios_putchar;
2546         biosB0[0x3f] = psxBios_puts;
2547
2548         if (!Config.HLE) return;
2549
2550         for(i = 0; i < 256; i++) {
2551                 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2552                 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2553                 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2554         }
2555
2556         biosA0[0x00] = psxBios_open;
2557         biosA0[0x01] = psxBios_lseek;
2558         biosA0[0x02] = psxBios_read;
2559         biosA0[0x03] = psxBios_write;
2560         biosA0[0x04] = psxBios_close;
2561         //biosA0[0x05] = psxBios_ioctl;
2562         //biosA0[0x06] = psxBios_exit;
2563         //biosA0[0x07] = psxBios_sys_a0_07;
2564         biosA0[0x08] = psxBios_getc;
2565         biosA0[0x09] = psxBios_putc;
2566         biosA0[0x0a] = psxBios_todigit;
2567         //biosA0[0x0b] = psxBios_atof;
2568         //biosA0[0x0c] = psxBios_strtoul;
2569         //biosA0[0x0d] = psxBios_strtol;
2570         biosA0[0x0e] = psxBios_abs;
2571         biosA0[0x0f] = psxBios_labs;
2572         biosA0[0x10] = psxBios_atoi;
2573         biosA0[0x11] = psxBios_atol;
2574         //biosA0[0x12] = psxBios_atob;
2575         biosA0[0x13] = psxBios_setjmp;
2576         biosA0[0x14] = psxBios_longjmp;
2577         biosA0[0x15] = psxBios_strcat;
2578         biosA0[0x16] = psxBios_strncat;
2579         biosA0[0x17] = psxBios_strcmp;
2580         biosA0[0x18] = psxBios_strncmp;
2581         biosA0[0x19] = psxBios_strcpy;
2582         biosA0[0x1a] = psxBios_strncpy;
2583         biosA0[0x1b] = psxBios_strlen;
2584         biosA0[0x1c] = psxBios_index;
2585         biosA0[0x1d] = psxBios_rindex;
2586         biosA0[0x1e] = psxBios_strchr;
2587         biosA0[0x1f] = psxBios_strrchr;
2588         biosA0[0x20] = psxBios_strpbrk;
2589         biosA0[0x21] = psxBios_strspn;
2590         biosA0[0x22] = psxBios_strcspn;
2591         biosA0[0x23] = psxBios_strtok;
2592         biosA0[0x24] = psxBios_strstr;
2593         biosA0[0x25] = psxBios_toupper;
2594         biosA0[0x26] = psxBios_tolower;
2595         biosA0[0x27] = psxBios_bcopy;
2596         biosA0[0x28] = psxBios_bzero;
2597         biosA0[0x29] = psxBios_bcmp;
2598         biosA0[0x2a] = psxBios_memcpy;
2599         biosA0[0x2b] = psxBios_memset;
2600         biosA0[0x2c] = psxBios_memmove;
2601         biosA0[0x2d] = psxBios_memcmp;
2602         biosA0[0x2e] = psxBios_memchr;
2603         biosA0[0x2f] = psxBios_rand;
2604         biosA0[0x30] = psxBios_srand;
2605         biosA0[0x31] = psxBios_qsort;
2606         //biosA0[0x32] = psxBios_strtod;
2607         biosA0[0x33] = psxBios_malloc;
2608         biosA0[0x34] = psxBios_free;
2609         //biosA0[0x35] = psxBios_lsearch;
2610         //biosA0[0x36] = psxBios_bsearch;
2611         biosA0[0x37] = psxBios_calloc;
2612         biosA0[0x38] = psxBios_realloc;
2613         biosA0[0x39] = psxBios_InitHeap;
2614         //biosA0[0x3a] = psxBios__exit;
2615         biosA0[0x3b] = psxBios_getchar;
2616         biosA0[0x3c] = psxBios_putchar;
2617         //biosA0[0x3d] = psxBios_gets;
2618         //biosA0[0x40] = psxBios_sys_a0_40;
2619         //biosA0[0x41] = psxBios_LoadTest;
2620         biosA0[0x42] = psxBios_Load;
2621         biosA0[0x43] = psxBios_Exec;
2622         biosA0[0x44] = psxBios_FlushCache;
2623         //biosA0[0x45] = psxBios_InstallInterruptHandler;
2624         biosA0[0x46] = psxBios_GPU_dw;
2625         biosA0[0x47] = psxBios_mem2vram;
2626         biosA0[0x48] = psxBios_SendGPU;
2627         biosA0[0x49] = psxBios_GPU_cw;
2628         biosA0[0x4a] = psxBios_GPU_cwb;
2629         biosA0[0x4b] = psxBios_GPU_SendPackets;
2630         biosA0[0x4c] = psxBios_sys_a0_4c;
2631         biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2632         //biosA0[0x4e] = psxBios_GPU_sync;
2633         //biosA0[0x4f] = psxBios_sys_a0_4f;
2634         //biosA0[0x50] = psxBios_sys_a0_50;
2635         biosA0[0x51] = psxBios_LoadExec;
2636         //biosA0[0x52] = psxBios_GetSysSp;
2637         //biosA0[0x53] = psxBios_sys_a0_53;
2638         //biosA0[0x54] = psxBios__96_init_a54;
2639         //biosA0[0x55] = psxBios__bu_init_a55;
2640         //biosA0[0x56] = psxBios__96_remove_a56;
2641         //biosA0[0x57] = psxBios_sys_a0_57;
2642         //biosA0[0x58] = psxBios_sys_a0_58;
2643         //biosA0[0x59] = psxBios_sys_a0_59;
2644         //biosA0[0x5a] = psxBios_sys_a0_5a;
2645         //biosA0[0x5b] = psxBios_dev_tty_init;
2646         //biosA0[0x5c] = psxBios_dev_tty_open;
2647         //biosA0[0x5d] = psxBios_sys_a0_5d;
2648         //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2649         //biosA0[0x5f] = psxBios_dev_cd_open;
2650         //biosA0[0x60] = psxBios_dev_cd_read;
2651         //biosA0[0x61] = psxBios_dev_cd_close;
2652         //biosA0[0x62] = psxBios_dev_cd_firstfile;
2653         //biosA0[0x63] = psxBios_dev_cd_nextfile;
2654         //biosA0[0x64] = psxBios_dev_cd_chdir;
2655         //biosA0[0x65] = psxBios_dev_card_open;
2656         //biosA0[0x66] = psxBios_dev_card_read;
2657         //biosA0[0x67] = psxBios_dev_card_write;
2658         //biosA0[0x68] = psxBios_dev_card_close;
2659         //biosA0[0x69] = psxBios_dev_card_firstfile;
2660         //biosA0[0x6a] = psxBios_dev_card_nextfile;
2661         //biosA0[0x6b] = psxBios_dev_card_erase;
2662         //biosA0[0x6c] = psxBios_dev_card_undelete;
2663         //biosA0[0x6d] = psxBios_dev_card_format;
2664         //biosA0[0x6e] = psxBios_dev_card_rename;
2665         //biosA0[0x6f] = psxBios_dev_card_6f;
2666         biosA0[0x70] = psxBios__bu_init;
2667         biosA0[0x71] = psxBios__96_init;
2668         biosA0[0x72] = psxBios__96_remove;
2669         //biosA0[0x73] = psxBios_sys_a0_73;
2670         //biosA0[0x74] = psxBios_sys_a0_74;
2671         //biosA0[0x75] = psxBios_sys_a0_75;
2672         //biosA0[0x76] = psxBios_sys_a0_76;
2673         //biosA0[0x77] = psxBios_sys_a0_77;
2674         //biosA0[0x78] = psxBios__96_CdSeekL;
2675         //biosA0[0x79] = psxBios_sys_a0_79;
2676         //biosA0[0x7a] = psxBios_sys_a0_7a;
2677         //biosA0[0x7b] = psxBios_sys_a0_7b;
2678         //biosA0[0x7c] = psxBios__96_CdGetStatus;
2679         //biosA0[0x7d] = psxBios_sys_a0_7d;
2680         //biosA0[0x7e] = psxBios__96_CdRead;
2681         //biosA0[0x7f] = psxBios_sys_a0_7f;
2682         //biosA0[0x80] = psxBios_sys_a0_80;
2683         //biosA0[0x81] = psxBios_sys_a0_81;
2684         //biosA0[0x82] = psxBios_sys_a0_82;
2685         //biosA0[0x83] = psxBios_sys_a0_83;
2686         //biosA0[0x84] = psxBios_sys_a0_84;
2687         //biosA0[0x85] = psxBios__96_CdStop;
2688         //biosA0[0x86] = psxBios_sys_a0_86;
2689         //biosA0[0x87] = psxBios_sys_a0_87;
2690         //biosA0[0x88] = psxBios_sys_a0_88;
2691         //biosA0[0x89] = psxBios_sys_a0_89;
2692         //biosA0[0x8a] = psxBios_sys_a0_8a;
2693         //biosA0[0x8b] = psxBios_sys_a0_8b;
2694         //biosA0[0x8c] = psxBios_sys_a0_8c;
2695         //biosA0[0x8d] = psxBios_sys_a0_8d;
2696         //biosA0[0x8e] = psxBios_sys_a0_8e;
2697         //biosA0[0x8f] = psxBios_sys_a0_8f;
2698         //biosA0[0x90] = psxBios_sys_a0_90;
2699         //biosA0[0x91] = psxBios_sys_a0_91;
2700         //biosA0[0x92] = psxBios_sys_a0_92;
2701         //biosA0[0x93] = psxBios_sys_a0_93;
2702         //biosA0[0x94] = psxBios_sys_a0_94;
2703         //biosA0[0x95] = psxBios_sys_a0_95;
2704         //biosA0[0x96] = psxBios_AddCDROMDevice;
2705         //biosA0[0x97] = psxBios_AddMemCardDevide;
2706         //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2707         //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2708         //biosA0[0x9a] = psxBios_sys_a0_9a;
2709         //biosA0[0x9b] = psxBios_sys_a0_9b;
2710         //biosA0[0x9c] = psxBios_SetConf;
2711         //biosA0[0x9d] = psxBios_GetConf;
2712         //biosA0[0x9e] = psxBios_sys_a0_9e;
2713         biosA0[0x9f] = psxBios_SetMem;
2714         //biosA0[0xa0] = psxBios__boot;
2715         //biosA0[0xa1] = psxBios_SystemError;
2716         //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2717         //biosA0[0xa3] = psxBios_DequeueCdIntr;
2718         //biosA0[0xa4] = psxBios_sys_a0_a4;
2719         //biosA0[0xa5] = psxBios_ReadSector;
2720         //biosA0[0xa6] = psxBios_get_cd_status;
2721         //biosA0[0xa7] = psxBios_bufs_cb_0;
2722         //biosA0[0xa8] = psxBios_bufs_cb_1;
2723         //biosA0[0xa9] = psxBios_bufs_cb_2;
2724         //biosA0[0xaa] = psxBios_bufs_cb_3;
2725         biosA0[0xab] = psxBios__card_info;
2726         biosA0[0xac] = psxBios__card_load;
2727         //biosA0[0axd] = psxBios__card_auto;
2728         //biosA0[0xae] = psxBios_bufs_cd_4;
2729         //biosA0[0xaf] = psxBios_sys_a0_af;
2730         //biosA0[0xb0] = psxBios_sys_a0_b0;
2731         //biosA0[0xb1] = psxBios_sys_a0_b1;
2732         //biosA0[0xb2] = psxBios_do_a_long_jmp
2733         //biosA0[0xb3] = psxBios_sys_a0_b3;
2734         //biosA0[0xb4] = psxBios_sub_function;
2735 //*******************B0 CALLS****************************
2736         //biosB0[0x00] = psxBios_SysMalloc;
2737         //biosB0[0x01] = psxBios_sys_b0_01;
2738         biosB0[0x02] = psxBios_SetRCnt;
2739         biosB0[0x03] = psxBios_GetRCnt;
2740         biosB0[0x04] = psxBios_StartRCnt;
2741         biosB0[0x05] = psxBios_StopRCnt;
2742         biosB0[0x06] = psxBios_ResetRCnt;
2743         biosB0[0x07] = psxBios_DeliverEvent;
2744         biosB0[0x08] = psxBios_OpenEvent;
2745         biosB0[0x09] = psxBios_CloseEvent;
2746         biosB0[0x0a] = psxBios_WaitEvent;
2747         biosB0[0x0b] = psxBios_TestEvent;
2748         biosB0[0x0c] = psxBios_EnableEvent;
2749         biosB0[0x0d] = psxBios_DisableEvent;
2750         biosB0[0x0e] = psxBios_OpenTh;
2751         biosB0[0x0f] = psxBios_CloseTh;
2752         biosB0[0x10] = psxBios_ChangeTh;
2753         //biosB0[0x11] = psxBios_psxBios_b0_11;
2754         biosB0[0x12] = psxBios_InitPAD;
2755         biosB0[0x13] = psxBios_StartPAD;
2756         biosB0[0x14] = psxBios_StopPAD;
2757         biosB0[0x15] = psxBios_PAD_init;
2758         biosB0[0x16] = psxBios_PAD_dr;
2759         biosB0[0x17] = psxBios_ReturnFromException;
2760         biosB0[0x18] = psxBios_ResetEntryInt;
2761         biosB0[0x19] = psxBios_HookEntryInt;
2762         //biosB0[0x1a] = psxBios_sys_b0_1a;
2763         //biosB0[0x1b] = psxBios_sys_b0_1b;
2764         //biosB0[0x1c] = psxBios_sys_b0_1c;
2765         //biosB0[0x1d] = psxBios_sys_b0_1d;
2766         //biosB0[0x1e] = psxBios_sys_b0_1e;
2767         //biosB0[0x1f] = psxBios_sys_b0_1f;
2768         biosB0[0x20] = psxBios_UnDeliverEvent;
2769         //biosB0[0x21] = psxBios_sys_b0_21;
2770         //biosB0[0x22] = psxBios_sys_b0_22;
2771         //biosB0[0x23] = psxBios_sys_b0_23;
2772         //biosB0[0x24] = psxBios_sys_b0_24;
2773         //biosB0[0x25] = psxBios_sys_b0_25;
2774         //biosB0[0x26] = psxBios_sys_b0_26;
2775         //biosB0[0x27] = psxBios_sys_b0_27;
2776         //biosB0[0x28] = psxBios_sys_b0_28;
2777         //biosB0[0x29] = psxBios_sys_b0_29;
2778         //biosB0[0x2a] = psxBios_sys_b0_2a;
2779         //biosB0[0x2b] = psxBios_sys_b0_2b;
2780         //biosB0[0x2c] = psxBios_sys_b0_2c;
2781         //biosB0[0x2d] = psxBios_sys_b0_2d;
2782         //biosB0[0x2e] = psxBios_sys_b0_2e;
2783         //biosB0[0x2f] = psxBios_sys_b0_2f;
2784         //biosB0[0x30] = psxBios_sys_b0_30;
2785         //biosB0[0x31] = psxBios_sys_b0_31;
2786         biosB0[0x32] = psxBios_open;
2787         biosB0[0x33] = psxBios_lseek;
2788         biosB0[0x34] = psxBios_read;
2789         biosB0[0x35] = psxBios_write;
2790         biosB0[0x36] = psxBios_close;
2791         //biosB0[0x37] = psxBios_ioctl;
2792         //biosB0[0x38] = psxBios_exit;
2793         //biosB0[0x39] = psxBios_sys_b0_39;
2794         //biosB0[0x3a] = psxBios_getc;
2795         //biosB0[0x3b] = psxBios_putc;
2796         biosB0[0x3c] = psxBios_getchar;
2797         //biosB0[0x3e] = psxBios_gets;
2798         //biosB0[0x40] = psxBios_cd;
2799         biosB0[0x41] = psxBios_format;
2800         biosB0[0x42] = psxBios_firstfile;
2801         biosB0[0x43] = psxBios_nextfile;
2802         biosB0[0x44] = psxBios_rename;
2803         biosB0[0x45] = psxBios_delete;
2804         //biosB0[0x46] = psxBios_undelete;
2805         //biosB0[0x47] = psxBios_AddDevice;
2806         //biosB0[0x48] = psxBios_RemoteDevice;
2807         //biosB0[0x49] = psxBios_PrintInstalledDevices;
2808         biosB0[0x4a] = psxBios_InitCARD;
2809         biosB0[0x4b] = psxBios_StartCARD;
2810         biosB0[0x4c] = psxBios_StopCARD;
2811         //biosB0[0x4d] = psxBios_sys_b0_4d;
2812         biosB0[0x4e] = psxBios__card_write;
2813         biosB0[0x4f] = psxBios__card_read;
2814         biosB0[0x50] = psxBios__new_card;
2815         biosB0[0x51] = psxBios_Krom2RawAdd;
2816         //biosB0[0x52] = psxBios_sys_b0_52;
2817         //biosB0[0x53] = psxBios_sys_b0_53;
2818         //biosB0[0x54] = psxBios__get_errno;
2819         //biosB0[0x55] = psxBios__get_error;
2820         biosB0[0x56] = psxBios_GetC0Table;
2821         biosB0[0x57] = psxBios_GetB0Table;
2822         biosB0[0x58] = psxBios__card_chan;
2823         //biosB0[0x59] = psxBios_sys_b0_59;
2824         //biosB0[0x5a] = psxBios_sys_b0_5a;
2825         biosB0[0x5b] = psxBios_ChangeClearPad;
2826         //biosB0[0x5c] = psxBios__card_status;
2827         //biosB0[0x5d] = psxBios__card_wait;
2828 //*******************C0 CALLS****************************
2829         //biosC0[0x00] = psxBios_InitRCnt;
2830         //biosC0[0x01] = psxBios_InitException;
2831         biosC0[0x02] = psxBios_SysEnqIntRP;
2832         biosC0[0x03] = psxBios_SysDeqIntRP;
2833         //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2834         //biosC0[0x05] = psxBios_get_free_TCB_slot;
2835         //biosC0[0x06] = psxBios_ExceptionHandler;
2836         //biosC0[0x07] = psxBios_InstallExeptionHandler;
2837         //biosC0[0x08] = psxBios_SysInitMemory;
2838         //biosC0[0x09] = psxBios_SysInitKMem;
2839         biosC0[0x0a] = psxBios_ChangeClearRCnt;
2840         //biosC0[0x0b] = psxBios_SystemError;
2841         //biosC0[0x0c] = psxBios_InitDefInt;
2842         //biosC0[0x0d] = psxBios_sys_c0_0d;
2843         //biosC0[0x0e] = psxBios_sys_c0_0e;
2844         //biosC0[0x0f] = psxBios_sys_c0_0f;
2845         //biosC0[0x10] = psxBios_sys_c0_10;
2846         //biosC0[0x11] = psxBios_sys_c0_11;
2847         //biosC0[0x12] = psxBios_InstallDevices;
2848         //biosC0[0x13] = psxBios_FlushStfInOutPut;
2849         //biosC0[0x14] = psxBios_sys_c0_14;
2850         //biosC0[0x15] = psxBios__cdevinput;
2851         //biosC0[0x16] = psxBios__cdevscan;
2852         //biosC0[0x17] = psxBios__circgetc;
2853         //biosC0[0x18] = psxBios__circputc;
2854         //biosC0[0x19] = psxBios_ioabort;
2855         //biosC0[0x1a] = psxBios_sys_c0_1a
2856         //biosC0[0x1b] = psxBios_KernelRedirect;
2857         //biosC0[0x1c] = psxBios_PatchAOTable;
2858 //************** THE END ***************************************
2859 /**/
2860         base = 0x1000;
2861         size = sizeof(EvCB) * 32;
2862         Event = (void *)&psxR[base]; base += size * 6;
2863         memset(Event, 0, size * 6);
2864         HwEV = Event;
2865         EvEV = Event + 32;
2866         RcEV = Event + 32 * 2;
2867         UeEV = Event + 32 * 3;
2868         SwEV = Event + 32 * 4;
2869         ThEV = Event + 32 * 5;
2870
2871         ptr = (u32 *)&psxM[0x0874]; // b0 table
2872         ptr[0] = SWAPu32(0x4c54 - 0x884);
2873
2874         ptr = (u32 *)&psxM[0x0674]; // c0 table
2875         ptr[6] = SWAPu32(0xc80);
2876
2877         memset(SysIntRP, 0, sizeof(SysIntRP));
2878         memset(Thread, 0, sizeof(Thread));
2879         Thread[0].status = 2; // main thread
2880
2881         jmp_int = NULL;
2882         pad_buf = NULL;
2883         pad_buf1 = NULL;
2884         pad_buf2 = NULL;
2885         pad_buf1len = pad_buf2len = 0;
2886         heap_addr = NULL;
2887         heap_end = NULL;
2888         CardState = -1;
2889         CurThread = 0;
2890         memset(FDesc, 0, sizeof(FDesc));
2891
2892         psxMu32ref(0x0150) = SWAPu32(0x160);
2893         psxMu32ref(0x0154) = SWAPu32(0x320);
2894         psxMu32ref(0x0160) = SWAPu32(0x248);
2895         strcpy((char *)&psxM[0x248], "bu");
2896 /*      psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
2897         psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
2898         psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
2899         psxMu32ref(0x09e0) = SWAPu32(0x43d0);
2900         psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
2901 */
2902         // opcode HLE
2903         psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
2904         psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
2905         psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
2906         psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
2907         psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
2908         psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
2909         psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
2910         psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
2911         psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
2912         psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
2913
2914         // initial stack pointer for BIOS interrupt
2915         psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
2916
2917         // initial RNG seed
2918         psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
2919
2920         // fonts
2921         len = 0x80000 - 0x66000;
2922         uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
2923         len = 0x80000 - 0x69d68;
2924         uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
2925
2926         // memory size 2 MB
2927         psxHu32ref(0x1060) = SWAPu32(0x00000b88);
2928
2929         hleSoftCall = FALSE;
2930 }
2931
2932 void psxBiosShutdown() {
2933 }
2934
2935 #define psxBios_PADpoll(pad) { \
2936         PAD##pad##_startPoll(pad); \
2937         pad_buf##pad[0] = 0; \
2938         pad_buf##pad[1] = PAD##pad##_poll(0x42); \
2939         if (!(pad_buf##pad[1] & 0x0f)) { \
2940                 bufcount = 32; \
2941         } else { \
2942                 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
2943         } \
2944         PAD##pad##_poll(0); \
2945         i = 2; \
2946         while (bufcount--) { \
2947                 pad_buf##pad[i++] = PAD##pad##_poll(0); \
2948         } \
2949 }
2950
2951 void biosInterrupt() {
2952         int i, bufcount;
2953
2954 //      if (psxHu32(0x1070) & 0x1) { // Vsync
2955                 if (pad_buf != NULL) {
2956                         u32 *buf = (u32*)pad_buf;
2957
2958                         if (!Config.UseNet) {
2959                                 PAD1_startPoll(1);
2960                                 if (PAD1_poll(0x42) == 0x23) {
2961                                         PAD1_poll(0);
2962                                         *buf = PAD1_poll(0) << 8;
2963                                         *buf |= PAD1_poll(0);
2964                                         PAD1_poll(0);
2965                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
2966                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
2967                                 } else {
2968                                         PAD1_poll(0);
2969                                         *buf = PAD1_poll(0) << 8;
2970                                         *buf|= PAD1_poll(0);
2971                                 }
2972
2973                                 PAD2_startPoll(2);
2974                                 if (PAD2_poll(0x42) == 0x23) {
2975                                         PAD2_poll(0);
2976                                         *buf |= PAD2_poll(0) << 24;
2977                                         *buf |= PAD2_poll(0) << 16;
2978                                         PAD2_poll(0);
2979                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
2980                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
2981                                 } else {
2982                                         PAD2_poll(0);
2983                                         *buf |= PAD2_poll(0) << 24;
2984                                         *buf |= PAD2_poll(0) << 16;
2985                                 }
2986                         } else {
2987                                 u16 data;
2988
2989                                 PAD1_startPoll(1);
2990                                 PAD1_poll(0x42);
2991                                 PAD1_poll(0);
2992                                 data = PAD1_poll(0) << 8;
2993                                 data |= PAD1_poll(0);
2994
2995                                 if (NET_sendPadData(&data, 2) == -1)
2996                                         netError();
2997
2998                                 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
2999                                         netError();
3000                                 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3001                                         netError();
3002                         }
3003                 }
3004                 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3005                         psxBios_PADpoll(1);
3006
3007                         if (NET_sendPadData(pad_buf1, i) == -1)
3008                                 netError();
3009
3010                         if (NET_recvPadData(pad_buf1, 1) == -1)
3011                                 netError();
3012                         if (NET_recvPadData(pad_buf2, 2) == -1)
3013                                 netError();
3014                 } else {
3015                         if (pad_buf1) {
3016                                 psxBios_PADpoll(1);
3017                         }
3018
3019                         if (pad_buf2) {
3020                                 psxBios_PADpoll(2);
3021                         }
3022                 }
3023
3024         if (psxHu32(0x1070) & 0x1) { // Vsync
3025                 if (RcEV[3][1].status == EvStACTIVE) {
3026                         softCall(RcEV[3][1].fhandler);
3027 //                      hwWrite32(0x1f801070, ~(1));
3028                 }
3029         }
3030
3031         if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3032                 int i;
3033
3034                 for (i = 0; i < 3; i++) {
3035                         if (psxHu32(0x1070) & (1 << (i + 4))) {
3036                                 if (RcEV[i][1].status == EvStACTIVE) {
3037                                         softCall(RcEV[i][1].fhandler);
3038                                 }
3039                                 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3040                         }
3041                 }
3042         }
3043 }
3044
3045 void psxBiosException() {
3046         int i;
3047
3048         switch (psxRegs.CP0.n.Cause & 0x3c) {
3049                 case 0x00: // Interrupt
3050 #ifdef PSXCPU_LOG
3051 //                      PSXCPU_LOG("interrupt\n");
3052 #endif
3053                         SaveRegs();
3054
3055                         sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3056
3057                         biosInterrupt();
3058
3059                         for (i = 0; i < 8; i++) {
3060                                 if (SysIntRP[i]) {
3061                                         u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3062
3063                                         s0 = queue[2];
3064                                         softCall(queue[1]);
3065                                 }
3066                         }
3067
3068                         if (jmp_int != NULL) {
3069                                 int i;
3070
3071                                 psxHwWrite32(0x1f801070, 0xffffffff);
3072
3073                                 ra = jmp_int[0];
3074                                 sp = jmp_int[1];
3075                                 fp = jmp_int[2];
3076                                 for (i = 0; i < 8; i++) // s0-s7
3077                                          psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3078                                 gp = jmp_int[11];
3079
3080                                 v0 = 1;
3081                                 pc0 = ra;
3082                                 return;
3083                         }
3084                         psxHwWrite16(0x1f801070, 0);
3085                         break;
3086
3087                 case 0x20: // Syscall
3088 #ifdef PSXCPU_LOG
3089                         PSXCPU_LOG("syscall exp %x\n", a0);
3090 #endif
3091                         switch (a0) {
3092                                 case 1: // EnterCritical - disable irq's
3093                                         /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3094                                         v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3095                                         psxRegs.CP0.n.Status &= ~0x404;
3096                                         break;
3097
3098                                 case 2: // ExitCritical - enable irq's
3099                                         psxRegs.CP0.n.Status |= 0x404;
3100                                         break;
3101                         }
3102                         pc0 = psxRegs.CP0.n.EPC + 4;
3103
3104                         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3105                                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3106                         return;
3107
3108                 default:
3109 #ifdef PSXCPU_LOG
3110                         PSXCPU_LOG("unknown bios exception!\n");
3111 #endif
3112                         break;
3113         }
3114
3115         pc0 = psxRegs.CP0.n.EPC;
3116         if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3117
3118         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3119                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3120 }
3121
3122 #define bfreeze(ptr, size) { \
3123         if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3124         if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3125         base += size; \
3126 }
3127
3128 #define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3129 #define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3130
3131 #define bfreezepsxMptr(ptr, type) { \
3132         if (Mode == 1) { \
3133                 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3134                 else psxRu32ref(base) = 0; \
3135         } else { \
3136                 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3137                 else (ptr) = NULL; \
3138         } \
3139         base += sizeof(u32); \
3140 }
3141
3142 void psxBiosFreeze(int Mode) {
3143         u32 base = 0x40000;
3144
3145         bfreezepsxMptr(jmp_int, u32);
3146         bfreezepsxMptr(pad_buf, int);
3147         bfreezepsxMptr(pad_buf1, char);
3148         bfreezepsxMptr(pad_buf2, char);
3149         bfreezepsxMptr(heap_addr, u32);
3150         bfreezel(&pad_buf1len);
3151         bfreezel(&pad_buf2len);
3152         bfreezes(regs);
3153         bfreezes(SysIntRP);
3154         bfreezel(&CardState);
3155         bfreezes(Thread);
3156         bfreezel(&CurThread);
3157         bfreezes(FDesc);
3158         bfreezel(&card_active_chan);
3159 }