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