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