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