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
  29 #undef SysPrintf
  30 #define SysPrintf if (Config.PsxOut) printf
  31
  32 char *biosA0n[256] = {
  33 // 0x00
  34         "open",         "lseek",        "read",         "write",
  35         "close",        "ioctl",        "exit",         "sys_a0_07",
  36         "getc",         "putc",         "todigit",      "atof",
  37         "strtoul",      "strtol",       "abs",          "labs",
  38 // 0x10
  39         "atoi",         "atol",         "atob",         "setjmp",
  40         "longjmp",      "strcat",       "strncat",      "strcmp",
  41         "strncmp",      "strcpy",       "strncpy",      "strlen",
  42         "index",        "rindex",       "strchr",       "strrchr",
  43 // 0x20
  44         "strpbrk",      "strspn",       "strcspn",      "strtok",
  45         "strstr",       "toupper",      "tolower",      "bcopy",
  46         "bzero",        "bcmp",         "memcpy",       "memset",
  47         "memmove",      "memcmp",       "memchr",       "rand",
  48 // 0x30
  49         "srand",        "qsort",        "strtod",       "malloc",
  50         "free",         "lsearch",      "bsearch",      "calloc",
  51         "realloc",      "InitHeap",     "_exit",        "getchar",
  52         "putchar",      "gets",         "puts",         "printf",
  53 // 0x40
  54         "sys_a0_40",            "LoadTest",                                     "Load",         "Exec",
  55         "FlushCache",           "InstallInterruptHandler",      "GPU_dw",       "mem2vram",
  56         "SendGPUStatus",        "GPU_cw",                                       "GPU_cwb",      "SendPackets",
  57         "sys_a0_4c",            "GetGPUStatus",                         "GPU_sync",     "sys_a0_4f",
  58 // 0x50
  59         "sys_a0_50",            "LoadExec",                             "GetSysSp",             "sys_a0_53",
  60         "_96_init()",           "_bu_init()",                   "_96_remove()", "sys_a0_57",
  61         "sys_a0_58",            "sys_a0_59",                    "sys_a0_5a",    "dev_tty_init",
  62         "dev_tty_open",         "sys_a0_5d",                    "dev_tty_ioctl","dev_cd_open",
  63 // 0x60
  64         "dev_cd_read",          "dev_cd_close",                 "dev_cd_firstfile",     "dev_cd_nextfile",
  65         "dev_cd_chdir",         "dev_card_open",                "dev_card_read",        "dev_card_write",
  66         "dev_card_close",       "dev_card_firstfile",   "dev_card_nextfile","dev_card_erase",
  67         "dev_card_undelete","dev_card_format",          "dev_card_rename",      "dev_card_6f",
  68 // 0x70
  69         "_bu_init",                     "_96_init",             "_96_remove",           "sys_a0_73",
  70         "sys_a0_74",            "sys_a0_75",    "sys_a0_76",            "sys_a0_77",
  71         "_96_CdSeekL",          "sys_a0_79",    "sys_a0_7a",            "sys_a0_7b",
  72         "_96_CdGetStatus",      "sys_a0_7d",    "_96_CdRead",           "sys_a0_7f",
  73 // 0x80
  74         "sys_a0_80",            "sys_a0_81",    "sys_a0_82",            "sys_a0_83",
  75         "sys_a0_84",            "_96_CdStop",   "sys_a0_86",            "sys_a0_87",
  76         "sys_a0_88",            "sys_a0_89",    "sys_a0_8a",            "sys_a0_8b",
  77         "sys_a0_8c",            "sys_a0_8d",    "sys_a0_8e",            "sys_a0_8f",
  78 // 0x90
  79         "sys_a0_90",            "sys_a0_91",    "sys_a0_92",            "sys_a0_93",
  80         "sys_a0_94",            "sys_a0_95",    "AddCDROMDevice",       "AddMemCardDevide",
  81         "DisableKernelIORedirection",           "EnableKernelIORedirection", "sys_a0_9a", "sys_a0_9b",
  82         "SetConf",                      "GetConf",              "sys_a0_9e",            "SetMem",
  83 // 0xa0
  84         "_boot",                        "SystemError",  "EnqueueCdIntr",        "DequeueCdIntr",
  85         "sys_a0_a4",            "ReadSector",   "get_cd_status",        "bufs_cb_0",
  86         "bufs_cb_1",            "bufs_cb_2",    "bufs_cb_3",            "_card_info",
  87         "_card_load",           "_card_auto",   "bufs_cd_4",            "sys_a0_af",
  88 // 0xb0
  89         "sys_a0_b0",            "sys_a0_b1",    "do_a_long_jmp",        "sys_a0_b3",
  90         "?? sub_function",
  91 };
  92
  93 char *biosB0n[256] = {
  94 // 0x00
  95         "SysMalloc",            "sys_b0_01",    "sys_b0_02",    "sys_b0_03",
  96         "sys_b0_04",            "sys_b0_05",    "sys_b0_06",    "DeliverEvent",
  97         "OpenEvent",            "CloseEvent",   "WaitEvent",    "TestEvent",
  98         "EnableEvent",          "DisableEvent", "OpenTh",               "CloseTh",
  99 // 0x10
 100         "ChangeTh",                     "sys_b0_11",    "InitPAD",              "StartPAD",
 101         "StopPAD",                      "PAD_init",             "PAD_dr",               "ReturnFromExecption",
 102         "ResetEntryInt",        "HookEntryInt", "sys_b0_1a",    "sys_b0_1b",
 103         "sys_b0_1c",            "sys_b0_1d",    "sys_b0_1e",    "sys_b0_1f",
 104 // 0x20
 105         "UnDeliverEvent",       "sys_b0_21",    "sys_b0_22",    "sys_b0_23",
 106         "sys_b0_24",            "sys_b0_25",    "sys_b0_26",    "sys_b0_27",
 107         "sys_b0_28",            "sys_b0_29",    "sys_b0_2a",    "sys_b0_2b",
 108         "sys_b0_2c",            "sys_b0_2d",    "sys_b0_2e",    "sys_b0_2f",
 109 // 0x30
 110         "sys_b0_30",            "sys_b0_31",    "open",                 "lseek",
 111         "read",                         "write",                "close",                "ioctl",
 112         "exit",                         "sys_b0_39",    "getc",                 "putc",
 113         "getchar",                      "putchar",              "gets",                 "puts",
 114 // 0x40
 115         "cd",                           "format",               "firstfile",    "nextfile",
 116         "rename",                       "delete",               "undelete",             "AddDevice",
 117         "RemoteDevice",         "PrintInstalledDevices", "InitCARD", "StartCARD",
 118         "StopCARD",                     "sys_b0_4d",    "_card_write",  "_card_read",
 119 // 0x50
 120         "_new_card",            "Krom2RawAdd",  "sys_b0_52",    "sys_b0_53",
 121         "_get_errno",           "_get_error",   "GetC0Table",   "GetB0Table",
 122         "_card_chan",           "sys_b0_59",    "sys_b0_5a",    "ChangeClearPAD",
 123         "_card_status",         "_card_wait",
 124 };
 125
 126 char *biosC0n[256] = {
 127 // 0x00
 128         "InitRCnt",                       "InitException",              "SysEnqIntRP",          "SysDeqIntRP",
 129         "get_free_EvCB_slot", "get_free_TCB_slot",      "ExceptionHandler",     "InstallExeptionHandler",
 130         "SysInitMemory",          "SysInitKMem",                "ChangeClearRCnt",      "SystemError",
 131         "InitDefInt",             "sys_c0_0d",                  "sys_c0_0e",            "sys_c0_0f",
 132 // 0x10
 133         "sys_c0_10",              "sys_c0_11",                  "InstallDevices",       "FlushStfInOutPut",
 134         "sys_c0_14",              "_cdevinput",                 "_cdevscan",            "_circgetc",
 135         "_circputc",              "ioabort",                    "sys_c0_1a",            "KernelRedirect",
 136         "PatchAOTable",
 137 };
 138
 139 //#define r0 (psxRegs.GPR.n.r0)
 140 #define at (psxRegs.GPR.n.at)
 141 #define v0 (psxRegs.GPR.n.v0)
 142 #define v1 (psxRegs.GPR.n.v1)
 143 #define a0 (psxRegs.GPR.n.a0)
 144 #define a1 (psxRegs.GPR.n.a1)
 145 #define a2 (psxRegs.GPR.n.a2)
 146 #define a3 (psxRegs.GPR.n.a3)
 147 #define t0 (psxRegs.GPR.n.t0)
 148 #define t1 (psxRegs.GPR.n.t1)
 149 #define t2 (psxRegs.GPR.n.t2)
 150 #define t3 (psxRegs.GPR.n.t3)
 151 #define t4 (psxRegs.GPR.n.t4)
 152 #define t5 (psxRegs.GPR.n.t5)
 153 #define t6 (psxRegs.GPR.n.t6)
 154 #define t7 (psxRegs.GPR.n.t7)
 155 #define t8 (psxRegs.GPR.n.t8)
 156 #define t9 (psxRegs.GPR.n.t9)
 157 #define s0 (psxRegs.GPR.n.s0)
 158 #define s1 (psxRegs.GPR.n.s1)
 159 #define s2 (psxRegs.GPR.n.s2)
 160 #define s3 (psxRegs.GPR.n.s3)
 161 #define s4 (psxRegs.GPR.n.s4)
 162 #define s5 (psxRegs.GPR.n.s5)
 163 #define s6 (psxRegs.GPR.n.s6)
 164 #define s7 (psxRegs.GPR.n.s7)
 165 #define k0 (psxRegs.GPR.n.k0)
 166 #define k1 (psxRegs.GPR.n.k1)
 167 #define gp (psxRegs.GPR.n.gp)
 168 #define sp (psxRegs.GPR.n.sp)
 169 #define fp (psxRegs.GPR.n.s8)
 170 #define ra (psxRegs.GPR.n.ra)
 171 #define pc0 (psxRegs.pc)
 172
 173 #define Ra0 ((char *)PSXM(a0))
 174 #define Ra1 ((char *)PSXM(a1))
 175 #define Ra2 ((char *)PSXM(a2))
 176 #define Ra3 ((char *)PSXM(a3))
 177 #define Rv0 ((char *)PSXM(v0))
 178 #define Rsp ((char *)PSXM(sp))
 179
 180 typedef struct {
 181         u32 desc;
 182         s32 status;
 183         s32 mode;
 184         u32 fhandler;
 185 } EvCB[32];
 186
 187 #define EvStUNUSED      0x0000
 188 #define EvStWAIT        0x1000
 189 #define EvStACTIVE      0x2000
 190 #define EvStALREADY 0x4000
 191
 192 #define EvMdINTR        0x1000
 193 #define EvMdNOINTR      0x2000
 194
 195 /*
 196 typedef struct {
 197         s32 next;
 198         s32 func1;
 199         s32 func2;
 200         s32 pad;
 201 } SysRPst;
 202 */
 203
 204 typedef struct {
 205         s32 status;
 206         s32 mode;
 207         u32 reg[32];
 208         u32 func;
 209 } TCB;
 210
 211 typedef struct {
 212         u32 _pc0;
 213         u32 gp0;
 214         u32 t_addr;
 215         u32 t_size;
 216         u32 d_addr;
 217         u32 d_size;
 218         u32 b_addr;
 219         u32 b_size;
 220         u32 S_addr;
 221         u32 s_size;
 222         u32 _sp, _fp, _gp, ret, base;
 223 } EXEC;
 224
 225 struct DIRENTRY {
 226         char name[20];
 227         s32 attr;
 228         s32 size;
 229         u32 next;
 230         s32 head;
 231         char system[4];
 232 };
 233
 234 typedef struct {
 235         char name[32];
 236         u32  mode;
 237         u32  offset;
 238         u32  size;
 239         u32  mcfile;
 240 } FileDesc;
 241
 242 static u32 *jmp_int = NULL;
 243 static int *pad_buf = NULL;
 244 static char *pad_buf1 = NULL, *pad_buf2 = NULL;
 245 static int pad_buf1len, pad_buf2len;
 246
 247 static u32 regs[35];
 248 static EvCB *Event;
 249 static EvCB *HwEV; // 0xf0
 250 static EvCB *EvEV; // 0xf1
 251 static EvCB *RcEV; // 0xf2
 252 static EvCB *UeEV; // 0xf3
 253 static EvCB *SwEV; // 0xf4
 254 static EvCB *ThEV; // 0xff
 255 static u32 *heap_addr = NULL;
 256 static u32 *heap_end = NULL;
 257 static u32 SysIntRP[8];
 258 static int CardState = -1;
 259 static TCB Thread[8];
 260 static int CurThread = 0;
 261 static FileDesc FDesc[32];
 262 static u32 card_active_chan;
 263
 264 boolean hleSoftCall = FALSE;
 265
 266 static inline void softCall(u32 pc) {
 267         pc0 = pc;
 268         ra = 0x80001000;
 269
 270         hleSoftCall = TRUE;
 271
 272         while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
 273
 274         hleSoftCall = FALSE;
 275 }
 276
 277 static inline void softCall2(u32 pc) {
 278         u32 sra = ra;
 279         pc0 = pc;
 280         ra = 0x80001000;
 281
 282         hleSoftCall = TRUE;
 283
 284         while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
 285         ra = sra;
 286
 287         hleSoftCall = FALSE;
 288 }
 289
 290 static inline void DeliverEvent(u32 ev, u32 spec) {
 291         if (Event[ev][spec].status != EvStACTIVE) return;
 292
 293 //      Event[ev][spec].status = EvStALREADY;
 294         if (Event[ev][spec].mode == EvMdINTR) {
 295                 softCall2(Event[ev][spec].fhandler);
 296         } else Event[ev][spec].status = EvStALREADY;
 297 }
 298
 299 static inline void SaveRegs() {
 300         memcpy(regs, psxRegs.GPR.r, 32*4);
 301         regs[32] = psxRegs.GPR.n.lo;
 302         regs[33] = psxRegs.GPR.n.hi;
 303         regs[34] = psxRegs.pc;
 304 }
 305
 306 static inline void LoadRegs() {
 307         memcpy(psxRegs.GPR.r, regs, 32*4);
 308         psxRegs.GPR.n.lo = regs[32];
 309         psxRegs.GPR.n.hi = regs[33];
 310 }
 311
 312 /*                                           *
 313 //                                           *
 314 //                                           *
 315 //               System calls A0             */
 316
 317
 318 void psxBios_abs() { // 0x0e
 319         if ((s32)a0 < 0) v0 = -(s32)a0;
 320         else v0 = a0;
 321         pc0 = ra;
 322 }
 323
 324 void psxBios_labs() { // 0x0f
 325         psxBios_abs();
 326 }
 327
 328 void psxBios_atoi() { // 0x10
 329         s32 n = 0, f = 0;
 330         char *p = (char *)Ra0;
 331
 332         for (;;p++) {
 333                 switch (*p) {
 334                         case ' ': case '\t': continue;
 335                         case '-': f++;
 336                         case '+': p++;
 337                 }
 338                 break;
 339         }
 340
 341         while (*p >= '0' && *p <= '9') {
 342                 n = n * 10 + *p++ - '0';
 343         }
 344
 345         v0 = (f ? -n : n);
 346         pc0 = ra;
 347 }
 348
 349 void psxBios_atol() { // 0x11
 350         psxBios_atoi();
 351 }
 352
 353 void psxBios_setjmp() { // 0x13
 354         u32 *jmp_buf = (u32 *)Ra0;
 355         int i;
 356
 357 #ifdef PSXBIOS_LOG
 358         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
 359 #endif
 360
 361         jmp_buf[0] = ra;
 362         jmp_buf[1] = sp;
 363         jmp_buf[2] = fp;
 364         for (i = 0; i < 8; i++) // s0-s7
 365                 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
 366         jmp_buf[11] = gp;
 367
 368         v0 = 0; pc0 = ra;
 369 }
 370
 371 void psxBios_longjmp() { // 0x14
 372         u32 *jmp_buf = (u32 *)Ra0;
 373         int i;
 374
 375 #ifdef PSXBIOS_LOG
 376         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
 377 #endif
 378
 379         ra = jmp_buf[0]; /* ra */
 380         sp = jmp_buf[1]; /* sp */
 381         fp = jmp_buf[2]; /* fp */
 382         for (i = 0; i < 8; i++) // s0-s7
 383                 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
 384         gp = jmp_buf[11]; /* gp */
 385
 386         v0 = a1; pc0 = ra;
 387 }
 388
 389 void psxBios_strcat() { // 0x15
 390         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 391
 392 #ifdef PSXBIOS_LOG
 393         PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
 394 #endif
 395
 396         while (*p1++);
 397         --p1;
 398         while ((*p1++ = *p2++) != '\0');
 399
 400         v0 = a0; pc0 = ra;
 401 }
 402
 403 void psxBios_strncat() { // 0x16
 404         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 405         s32 n = a2;
 406
 407 #ifdef PSXBIOS_LOG
 408         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
 409 #endif
 410
 411         while (*p1++);
 412         --p1;
 413         while ((*p1++ = *p2++) != '\0') {
 414                 if (--n < 0) {
 415                         *--p1 = '\0';
 416                         break;
 417                 }
 418         }
 419
 420         v0 = a0; pc0 = ra;
 421 }
 422
 423 void psxBios_strcmp() { // 0x17
 424         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 425
 426 #ifdef PSXBIOS_LOG
 427         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
 428 #endif
 429
 430         while (*p1 == *p2++) {
 431                 if (*p1++ == '\0') {
 432                         v0 = 0;
 433                         pc0 = ra;
 434                         return;
 435                 }
 436         }
 437
 438         v0 = (*p1 - *--p2);
 439         pc0 = ra;
 440 }
 441
 442 void psxBios_strncmp() { // 0x18
 443         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 444         s32 n = a2;
 445
 446 #ifdef PSXBIOS_LOG
 447         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
 448 #endif
 449
 450         while (--n >= 0 && *p1 == *p2++) {
 451                 if (*p1++ == '\0') {
 452                         v0 = 0;
 453                         pc0 = ra;
 454                         return;
 455                 }
 456         }
 457
 458         v0 = (n < 0 ? 0 : *p1 - *--p2);
 459         pc0 = ra;
 460 }
 461
 462 void psxBios_strcpy() { // 0x19
 463         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 464         while ((*p1++ = *p2++) != '\0');
 465
 466         v0 = a0; pc0 = ra;
 467 }
 468
 469 void psxBios_strncpy() { // 0x1a
 470         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 471         s32 n = a2, i;
 472
 473         for (i = 0; i < n; i++) {
 474                 if ((*p1++ = *p2++) == '\0') {
 475                         while (++i < n) {
 476                                 *p1++ = '\0';
 477                         }
 478                         v0 = a0; pc0 = ra;
 479                         return;
 480                 }
 481         }
 482
 483         v0 = a0; pc0 = ra;
 484 }
 485
 486 void psxBios_strlen() { // 0x1b
 487         char *p = (char *)Ra0;
 488         v0 = 0;
 489         while (*p++) v0++;
 490         pc0 = ra;
 491 }
 492
 493 void psxBios_index() { // 0x1c
 494         char *p = (char *)Ra0;
 495
 496         do {
 497                 if (*p == a1) {
 498                         v0 = a0 + (p - (char *)Ra0);
 499                         pc0 = ra;
 500                         return;
 501                 }
 502         } while (*p++ != '\0');
 503
 504         v0 = 0; pc0 = ra;
 505 }
 506
 507 void psxBios_rindex() { // 0x1d
 508         char *p = (char *)Ra0;
 509
 510         v0 = 0;
 511
 512         do {
 513                 if (*p == a1)
 514                         v0 = a0 + (p - (char *)Ra0);
 515         } while (*p++ != '\0');
 516
 517         pc0 = ra;
 518 }
 519
 520 void psxBios_strchr() { // 0x1e
 521         psxBios_index();
 522 }
 523
 524 void psxBios_strrchr() { // 0x1f
 525         psxBios_rindex();
 526 }
 527
 528 void psxBios_strpbrk() { // 0x20
 529         char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
 530
 531         while ((c = *p1++) != '\0') {
 532                 for (scanp = p2; (sc = *scanp++) != '\0';) {
 533                         if (sc == c) {
 534                                 v0 = a0 + (p1 - 1 - (char *)Ra0);
 535                                 pc0 = ra;
 536                                 return;
 537                         }
 538                 }
 539         }
 540
 541         // BUG: return a0 instead of NULL if not found
 542         v0 = a0; pc0 = ra;
 543 }
 544
 545 void psxBios_strspn() { // 0x21
 546         char *p1, *p2;
 547
 548         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 549                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 550                 if (*p2 == '\0') break;
 551         }
 552
 553         v0 = p1 - (char *)Ra0; pc0 = ra;
 554 }
 555
 556 void psxBios_strcspn() { // 0x22
 557         char *p1, *p2;
 558
 559         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 560                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 561                 if (*p2 != '\0') break;
 562         }
 563
 564         v0 = p1 - (char *)Ra0; pc0 = ra;
 565 }
 566
 567 void psxBios_strtok() { // 0x23
 568         char *pcA0 = (char *)Ra0;
 569         char *pcRet = strtok(pcA0, (char *)Ra1);
 570         if (pcRet)
 571                 v0 = a0 + pcRet - pcA0;
 572         else
 573                 v0 = 0;
 574         pc0 = ra;
 575 }
 576
 577 void psxBios_strstr() { // 0x24
 578         char *p = (char *)Ra0, *p1, *p2;
 579
 580         while (*p != '\0') {
 581                 p1 = p;
 582                 p2 = (char *)Ra1;
 583
 584                 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
 585                         p1++; p2++;
 586                 }
 587
 588                 if (*p2 == '\0') {
 589                         v0 = a0 + (p - (char *)Ra0);
 590                         pc0 = ra;
 591                         return;
 592                 }
 593
 594                 p++;
 595         }
 596
 597         v0 = 0; pc0 = ra;
 598 }
 599
 600 void psxBios_toupper() { // 0x25
 601         v0 = (s8)(a0 & 0xff);
 602         if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
 603         pc0 = ra;
 604 }
 605
 606 void psxBios_tolower() { // 0x26
 607         v0 = (s8)(a0 & 0xff);
 608         if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
 609         pc0 = ra;
 610 }
 611
 612 void psxBios_bcopy() { // 0x27
 613         char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
 614         while (a2-- > 0) *p1++ = *p2++;
 615
 616         pc0 = ra;
 617 }
 618
 619 void psxBios_bzero() { // 0x28
 620         char *p = (char *)Ra0;
 621         while (a1-- > 0) *p++ = '\0';
 622
 623         pc0 = ra;
 624 }
 625
 626 void psxBios_bcmp() { // 0x29
 627         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 628
 629         if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
 630
 631         while (a2-- > 0) {
 632                 if (*p1++ != *p2++) {
 633                         v0 = *p1 - *p2; // BUG: compare the NEXT byte
 634                         pc0 = ra;
 635                         return;
 636                 }
 637         }
 638
 639         v0 = 0; pc0 = ra;
 640 }
 641
 642 void psxBios_memcpy() { // 0x2a
 643         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 644         while (a2-- > 0) *p1++ = *p2++;
 645
 646         v0 = a0; pc0 = ra;
 647 }
 648
 649 void psxBios_memset() { // 0x2b
 650         char *p = (char *)Ra0;
 651         while (a2-- > 0) *p++ = (char)a1;
 652
 653         v0 = a0; pc0 = ra;
 654 }
 655
 656 void psxBios_memmove() { // 0x2c
 657         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 658
 659         if (p2 <= p1 && p2 + a2 > p1) {
 660                 a2++; // BUG: copy one more byte here
 661                 p1 += a2;
 662                 p2 += a2;
 663                 while (a2-- > 0) *--p1 = *--p2;
 664         } else {
 665                 while (a2-- > 0) *p1++ = *p2++;
 666         }
 667
 668         v0 = a0; pc0 = ra;
 669 }
 670
 671 void psxBios_memcmp() { // 0x2d
 672         psxBios_bcmp();
 673 }
 674
 675 void psxBios_memchr() { // 0x2e
 676         char *p = (char *)Ra0;
 677
 678         while (a2-- > 0) {
 679                 if (*p++ != (s8)a1) continue;
 680                 v0 = a0 + (p - (char *)Ra0 - 1);
 681                 pc0 = ra;
 682                 return;
 683         }
 684
 685         v0 = 0; pc0 = ra;
 686 }
 687
 688 void psxBios_rand() { // 0x2f
 689         u32 s = psxMu32(0x9010) * 1103515245 + 12345;
 690         v0 = (s >> 16) & 0x7fff;
 691         psxMu32ref(0x9010) = SWAPu32(s);
 692         pc0 = ra;
 693 }
 694
 695 void psxBios_srand() { // 0x30
 696         psxMu32ref(0x9010) = SWAPu32(a0);
 697         pc0 = ra;
 698 }
 699
 700 static u32 qscmpfunc, qswidth;
 701
 702 static inline int qscmp(char *a, char *b) {
 703         u32 sa0 = a0;
 704
 705         a0 = sa0 + (a - (char *)PSXM(sa0));
 706         a1 = sa0 + (b - (char *)PSXM(sa0));
 707
 708         softCall2(qscmpfunc);
 709
 710         a0 = sa0;
 711         return (s32)v0;
 712 }
 713
 714 static inline void qexchange(char *i, char *j) {
 715         char t;
 716         int n = qswidth;
 717
 718         do {
 719                 t = *i;
 720                 *i++ = *j;
 721                 *j++ = t;
 722         } while (--n);
 723 }
 724
 725 static inline void q3exchange(char *i, char *j, char *k) {
 726         char t;
 727         int n = qswidth;
 728
 729         do {
 730                 t = *i;
 731                 *i++ = *k;
 732                 *k++ = *j;
 733                 *j++ = t;
 734         } while (--n);
 735 }
 736
 737 static void qsort_main(char *a, char *l) {
 738         char *i, *j, *lp, *hp;
 739         int c;
 740         unsigned int n;
 741
 742 start:
 743         if ((n = l - a) <= qswidth)
 744                 return;
 745         n = qswidth * (n / (2 * qswidth));
 746         hp = lp = a + n;
 747         i = a;
 748         j = l - qswidth;
 749         while (TRUE) {
 750                 if (i < lp) {
 751                         if ((c = qscmp(i, lp)) == 0) {
 752                                 qexchange(i, lp -= qswidth);
 753                                 continue;
 754                         }
 755                         if (c < 0) {
 756                                 i += qswidth;
 757                                 continue;
 758                         }
 759                 }
 760
 761 loop:
 762                 if (j > hp) {
 763                         if ((c = qscmp(hp, j)) == 0) {
 764                                 qexchange(hp += qswidth, j);
 765                                 goto loop;
 766                         }
 767                         if (c > 0) {
 768                                 if (i == lp) {
 769                                         q3exchange(i, hp += qswidth, j);
 770                                         i = lp += qswidth;
 771                                         goto loop;
 772                                 }
 773                                 qexchange(i, j);
 774                                 j -= qswidth;
 775                                 i += qswidth;
 776                                 continue;
 777                         }
 778                         j -= qswidth;
 779                         goto loop;
 780                 }
 781
 782                 if (i == lp) {
 783                         if (lp - a >= l - hp) {
 784                                 qsort_main(hp + qswidth, l);
 785                                 l = lp;
 786                         } else {
 787                                 qsort_main(a, lp);
 788                                 a = hp + qswidth;
 789                         }
 790                         goto start;
 791                 }
 792
 793                 q3exchange(j, lp -= qswidth, i);
 794                 j = hp -= qswidth;
 795         }
 796 }
 797
 798 void psxBios_qsort() { // 0x31
 799         qswidth = a2;
 800         qscmpfunc = a3;
 801         qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
 802
 803         pc0 = ra;
 804 }
 805
 806 void psxBios_malloc() { // 0x33
 807         unsigned int *chunk, *newchunk = NULL;
 808         unsigned int dsize = 0, csize, cstat;
 809         int colflag;
 810 #ifdef PSXBIOS_LOG
 811         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
 812 #endif
 813
 814         // scan through heap and combine free chunks of space
 815         chunk = heap_addr;
 816         colflag = 0;
 817         while(chunk < heap_end) {
 818                 // get size and status of actual chunk
 819                 csize = ((u32)*chunk) & 0xfffffffc;
 820                 cstat = ((u32)*chunk) & 1;
 821
 822                 // it's a free chunk
 823                 if(cstat == 1) {
 824                         if(colflag == 0) {
 825                                 newchunk = chunk;
 826                                 dsize = csize;
 827                                 colflag = 1;                    // let's begin a new collection of free memory
 828                         }
 829                         else dsize += (csize+4);        // add the new size including header
 830                 }
 831                 // not a free chunk: did we start a collection ?
 832                 else {
 833                         if(colflag == 1) {                      // collection is over
 834                                 colflag = 0;
 835                                 *newchunk = SWAP32(dsize | 1);
 836                         }
 837                 }
 838
 839                 // next chunk
 840                 chunk = (u32*)((uptr)chunk + csize + 4);
 841         }
 842         // if neccessary free memory on end of heap
 843         if (colflag == 1)
 844                 *newchunk = SWAP32(dsize | 1);
 845
 846         chunk = heap_addr;
 847         csize = ((u32)*chunk) & 0xfffffffc;
 848         cstat = ((u32)*chunk) & 1;
 849         dsize = (a0 + 3) & 0xfffffffc;
 850
 851         // exit on uninitialized heap
 852         if (chunk == NULL) {
 853                 SysPrintf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
 854                 v0 = 0;
 855                 pc0 = ra;
 856                 return;
 857         }
 858
 859         // search an unused chunk that is big enough until the end of the heap
 860         while ((dsize > csize || cstat == 0) && chunk < heap_end ) {
 861                 chunk = (u32*)((uptr)chunk + csize + 4);
 862                 csize = ((u32)*chunk) & 0xfffffffc;
 863                 cstat = ((u32)*chunk) & 1;
 864         }
 865
 866         // catch out of memory
 867         if(chunk >= heap_end) { SysPrintf("malloc %x,%x: Out of memory error!\n", v0, a0); v0 = 0; pc0 = ra; return; }
 868
 869         // allocate memory
 870         if(dsize == csize) {
 871                 // chunk has same size
 872                 *chunk &= 0xfffffffc;
 873         }
 874         else {
 875                 // split free chunk
 876                 *chunk = SWAP32(dsize);
 877                 newchunk = (u32*)((uptr)chunk + dsize + 4);
 878                 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
 879         }
 880
 881         // return pointer to allocated memory
 882         v0 = ((unsigned long)chunk - (unsigned long)psxM) + 4;
 883         v0|= 0x80000000;
 884         SysPrintf ("malloc %x,%x\n", v0, a0);
 885         pc0 = ra;
 886 }
 887
 888 void psxBios_free() { // 0x34
 889
 890 #ifdef PSXBIOS_LOG
 891         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
 892 #endif
 893
 894         SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
 895
 896         *(u32*)(Ra0-4) |= 1;    // set chunk to free
 897         pc0 = ra;
 898 }
 899
 900 void psxBios_calloc() { // 0x37
 901 #ifdef PSXBIOS_LOG
 902         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
 903 #endif
 904
 905         a0 = a0 * a1;
 906         psxBios_malloc();
 907         memset(Rv0, 0, a0);
 908 }
 909
 910 void psxBios_realloc() { // 0x38
 911         u32 block = a0;
 912         u32 size = a1;
 913 #ifdef PSXBIOS_LOG
 914         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
 915 #endif
 916
 917         a0 = block;
 918         psxBios_free();
 919         a0 = size;
 920         psxBios_malloc();
 921 }
 922
 923
 924 /* InitHeap(void *block , int n) */
 925 void psxBios_InitHeap() { // 0x39
 926         unsigned int size;
 927
 928 #ifdef PSXBIOS_LOG
 929         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
 930 #endif
 931
 932         if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
 933         else size = a1;
 934
 935         size &= 0xfffffffc;
 936
 937         heap_addr = (u32 *)Ra0;
 938         heap_end = (u32 *)((u8 *)heap_addr + size);
 939         *heap_addr = SWAP32(size | 1);
 940
 941         SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (uptr)heap_addr-(uptr)psxM, size);
 942
 943         pc0 = ra;
 944 }
 945
 946 void psxBios_getchar() { //0x3b
 947         v0 = getchar(); pc0 = ra;
 948 }
 949
 950 void psxBios_printf() { // 0x3f
 951         char tmp[1024];
 952         char tmp2[1024];
 953         u32 save[4];
 954         char *ptmp = tmp;
 955         int n=1, i=0, j;
 956
 957         memcpy(save, (char*)PSXM(sp), 4 * 4);
 958         psxMu32ref(sp) = SWAP32((u32)a0);
 959         psxMu32ref(sp + 4) = SWAP32((u32)a1);
 960         psxMu32ref(sp + 8) = SWAP32((u32)a2);
 961         psxMu32ref(sp + 12) = SWAP32((u32)a3);
 962
 963         while (Ra0[i]) {
 964                 switch (Ra0[i]) {
 965                         case '%':
 966                                 j = 0;
 967                                 tmp2[j++] = '%';
 968 _start:
 969                                 switch (Ra0[++i]) {
 970                                         case '.':
 971                                         case 'l':
 972                                                 tmp2[j++] = Ra0[i]; goto _start;
 973                                         default:
 974                                                 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
 975                                                         tmp2[j++] = Ra0[i];
 976                                                         goto _start;
 977                                                 }
 978                                                 break;
 979                                 }
 980                                 tmp2[j++] = Ra0[i];
 981                                 tmp2[j] = 0;
 982
 983                                 switch (Ra0[i]) {
 984                                         case 'f': case 'F':
 985                                                 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
 986                                         case 'a': case 'A':
 987                                         case 'e': case 'E':
 988                                         case 'g': case 'G':
 989                                                 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
 990                                         case 'p':
 991                                         case 'i':
 992                                         case 'd': case 'D':
 993                                         case 'o': case 'O':
 994                                         case 'x': case 'X':
 995                                                 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
 996                                         case 'c':
 997                                                 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
 998                                         case 's':
 999                                                 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1000                                         case '%':
1001                                                 *ptmp++ = Ra0[i]; break;
1002                                 }
1003                                 i++;
1004                                 break;
1005                         default:
1006                                 *ptmp++ = Ra0[i++];
1007                 }
1008         }
1009         *ptmp = 0;
1010
1011         memcpy((char*)PSXM(sp), save, 4 * 4);
1012
1013         SysPrintf("%s", tmp);
1014
1015         pc0 = ra;
1016 }
1017
1018 /*
1019  *      long Load(char *name, struct EXEC *header);
1020  */
1021
1022 void psxBios_Load() { // 0x42
1023         EXE_HEADER eheader;
1024
1025 #ifdef PSXBIOS_LOG
1026         PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1027 #endif
1028
1029         if (LoadCdromFile(Ra0, &eheader) == 0) {
1030                 memcpy(Ra1, ((char*)&eheader)+16, sizeof(EXEC));
1031                 v0 = 1;
1032         } else v0 = 0;
1033
1034         pc0 = ra;
1035 }
1036
1037 /*
1038  *      int Exec(struct EXEC *header , int argc , char **argv);
1039  */
1040
1041 void psxBios_Exec() { // 43
1042         EXEC *header = (EXEC*)Ra0;
1043         u32 tmp;
1044
1045 #ifdef PSXBIOS_LOG
1046         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1047 #endif
1048
1049         header->_sp = sp;
1050         header->_fp = fp;
1051         header->_sp = sp;
1052         header->_gp = gp;
1053         header->ret = ra;
1054         header->base = s0;
1055
1056         if (header->S_addr != 0) {
1057                 tmp = header->S_addr + header->s_size;
1058                 sp = tmp;
1059                 fp = sp;
1060         }
1061
1062         gp = header->gp0;
1063
1064         s0 = a0;
1065
1066         a0 = a1;
1067         a1 = a2;
1068
1069         ra = 0x8000;
1070         pc0 = header->_pc0;
1071 }
1072
1073 void psxBios_FlushCache() { // 44
1074 #ifdef PSXBIOS_LOG
1075         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1076 #endif
1077
1078         pc0 = ra;
1079 }
1080
1081 void psxBios_GPU_dw() { // 0x46
1082         int size;
1083         s32 *ptr;
1084
1085 #ifdef PSXBIOS_LOG
1086         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1087 #endif
1088
1089         GPU_writeData(0xa0000000);
1090         GPU_writeData((a1<<16)|(a0&0xffff));
1091         GPU_writeData((a3<<16)|(a2&0xffff));
1092         size = (a2*a3+1)/2;
1093         ptr = (s32*)PSXM(Rsp[4]);  //that is correct?
1094         do {
1095                 GPU_writeData(SWAP32(*ptr));
1096                 ptr++;
1097         } while(--size);
1098
1099         pc0 = ra;
1100 }
1101
1102 void psxBios_mem2vram() { // 0x47
1103         int size;
1104
1105         GPU_writeData(0xa0000000);
1106         GPU_writeData((a1<<16)|(a0&0xffff));
1107         GPU_writeData((a3<<16)|(a2&0xffff));
1108         size = (a2*a3+1)/2;
1109         GPU_writeStatus(0x04000002);
1110         psxHwWrite32(0x1f8010f4,0);
1111         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1112         psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1113         psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1114         psxHwWrite32(0x1f8010a8,0x01000201);
1115
1116         pc0 = ra;
1117 }
1118
1119 void psxBios_SendGPU() { // 0x48
1120         GPU_writeStatus(a0);
1121         pc0 = ra;
1122 }
1123
1124 void psxBios_GPU_cw() { // 0x49
1125         GPU_writeData(a0);
1126         pc0 = ra;
1127 }
1128
1129 void psxBios_GPU_cwb() { // 0x4a
1130         s32 *ptr = (s32*)Ra0;
1131         int size = a1;
1132         while(size--) {
1133                 GPU_writeData(SWAP32(*ptr));
1134                 ptr++;
1135         }
1136
1137         pc0 = ra;
1138 }
1139
1140 void psxBios_GPU_SendPackets() { //4b:
1141         GPU_writeStatus(0x04000002);
1142         psxHwWrite32(0x1f8010f4,0);
1143         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1144         psxHwWrite32(0x1f8010a0,a0);
1145         psxHwWrite32(0x1f8010a4,0);
1146         psxHwWrite32(0x1f8010a8,0x010000401);
1147         pc0 = ra;
1148 }
1149
1150 void psxBios_sys_a0_4c() { // 0x4c GPU relate
1151         psxHwWrite32(0x1f8010a8,0x00000401);
1152         GPU_writeData(0x0400000);
1153         GPU_writeData(0x0200000);
1154         GPU_writeData(0x0100000);
1155
1156         pc0 = ra;
1157 }
1158
1159 void psxBios_GPU_GetGPUStatus() { // 0x4d
1160         v0 = GPU_readStatus();
1161         pc0 = ra;
1162 }
1163
1164 #undef s_addr
1165
1166 void psxBios_LoadExec() { // 51
1167         EXEC *header = (EXEC*)PSXM(0xf000);
1168         u32 s_addr, s_size;
1169
1170 #ifdef PSXBIOS_LOG
1171         PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1172 #endif
1173         s_addr = a1; s_size = a2;
1174
1175         a1 = 0xf000;
1176         psxBios_Load();
1177
1178         header->S_addr = s_addr;
1179         header->s_size = s_size;
1180
1181         a0 = 0xf000; a1 = 0; a2 = 0;
1182         psxBios_Exec();
1183 }
1184
1185 void psxBios__bu_init() { // 70
1186 #ifdef PSXBIOS_LOG
1187         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1188 #endif
1189
1190         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1191         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1192
1193         pc0 = ra;
1194 }
1195
1196 void psxBios__96_init() { // 71
1197 #ifdef PSXBIOS_LOG
1198         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1199 #endif
1200
1201         pc0 = ra;
1202 }
1203
1204 void psxBios__96_remove() { // 72
1205 #ifdef PSXBIOS_LOG
1206         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1207 #endif
1208
1209         pc0 = ra;
1210 }
1211
1212 void psxBios_SetMem() { // 9f
1213         u32 new = psxHu32(0x1060);
1214
1215 #ifdef PSXBIOS_LOG
1216         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1217 #endif
1218
1219         switch(a0) {
1220                 case 2:
1221                         psxHu32ref(0x1060) = SWAP32(new);
1222                         psxMu32ref(0x060) = a0;
1223                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1224                         break;
1225
1226                 case 8:
1227                         psxHu32ref(0x1060) = SWAP32(new | 0x300);
1228                         psxMu32ref(0x060) = a0;
1229                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1230
1231                 default:
1232                         SysPrintf("Effective memory must be 2/8 MBytes\n");
1233                 break;
1234         }
1235
1236         pc0 = ra;
1237 }
1238
1239 void psxBios__card_info() { // ab
1240 #ifdef PSXBIOS_LOG
1241         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1242 #endif
1243
1244         card_active_chan = a0;
1245
1246 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1247         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1248
1249         v0 = 1; pc0 = ra;
1250 }
1251
1252 void psxBios__card_load() { // ac
1253 #ifdef PSXBIOS_LOG
1254         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1255 #endif
1256
1257         card_active_chan = a0;
1258
1259 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1260         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1261
1262         v0 = 1; pc0 = ra;
1263 }
1264
1265 /* System calls B0 */
1266
1267 void psxBios_SetRCnt() { // 02
1268 #ifdef PSXBIOS_LOG
1269         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1270 #endif
1271
1272         a0&= 0x3;
1273         if (a0 != 3) {
1274                 u32 mode=0;
1275
1276                 psxRcntWtarget(a0, a1);
1277                 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1278                 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1279                 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1280                 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1281                 else         { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1282
1283                 psxRcntWmode(a0, mode);
1284         }
1285         pc0 = ra;
1286 }
1287
1288 void psxBios_GetRCnt() { // 03
1289 #ifdef PSXBIOS_LOG
1290         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1291 #endif
1292
1293         a0&= 0x3;
1294         if (a0 != 3) v0 = psxRcntRcount(a0);
1295         else v0 = 0;
1296         pc0 = ra;
1297 }
1298
1299 void psxBios_StartRCnt() { // 04
1300 #ifdef PSXBIOS_LOG
1301         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1302 #endif
1303
1304         a0&= 0x3;
1305         if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1306         else psxHu32ref(0x1074)|= SWAPu32(0x1);
1307         v0 = 1; pc0 = ra;
1308 }
1309
1310 void psxBios_StopRCnt() { // 05
1311 #ifdef PSXBIOS_LOG
1312         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1313 #endif
1314
1315         a0&= 0x3;
1316         if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1317         else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1318         pc0 = ra;
1319 }
1320
1321 void psxBios_ResetRCnt() { // 06
1322 #ifdef PSXBIOS_LOG
1323         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1324 #endif
1325
1326         a0&= 0x3;
1327         if (a0 != 3) {
1328                 psxRcntWmode(a0, 0);
1329                 psxRcntWtarget(a0, 0);
1330                 psxRcntWcount(a0, 0);
1331         }
1332         pc0 = ra;
1333 }
1334
1335
1336 /* gets ev for use with Event */
1337 #define GetEv() \
1338         ev = (a0 >> 24) & 0xf; \
1339         if (ev == 0xf) ev = 0x5; \
1340         ev*= 32; \
1341         ev+= a0&0x1f;
1342
1343 /* gets spec for use with Event */
1344 #define GetSpec() \
1345         spec = 0; \
1346         switch (a1) { \
1347                 case 0x0301: spec = 16; break; \
1348                 case 0x0302: spec = 17; break; \
1349                 default: \
1350                         for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1351                         break; \
1352         }
1353
1354 void psxBios_DeliverEvent() { // 07
1355         int ev, spec;
1356         int i;
1357
1358         GetEv();
1359         GetSpec();
1360
1361 #ifdef PSXBIOS_LOG
1362         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1363 #endif
1364
1365         DeliverEvent(ev, spec);
1366
1367         pc0 = ra;
1368 }
1369
1370 void psxBios_OpenEvent() { // 08
1371         int ev, spec;
1372         int i;
1373
1374         GetEv();
1375         GetSpec();
1376
1377 #ifdef PSXBIOS_LOG
1378         PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1379 #endif
1380
1381         Event[ev][spec].status = EvStWAIT;
1382         Event[ev][spec].mode = a2;
1383         Event[ev][spec].fhandler = a3;
1384
1385         v0 = ev | (spec << 8);
1386         pc0 = ra;
1387 }
1388
1389 void psxBios_CloseEvent() { // 09
1390         int ev, spec;
1391
1392         ev   = a0 & 0xff;
1393         spec = (a0 >> 8) & 0xff;
1394
1395 #ifdef PSXBIOS_LOG
1396         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1397 #endif
1398
1399         Event[ev][spec].status = EvStUNUSED;
1400
1401         v0 = 1; pc0 = ra;
1402 }
1403
1404 void psxBios_WaitEvent() { // 0a
1405         int ev, spec;
1406
1407         ev   = a0 & 0xff;
1408         spec = (a0 >> 8) & 0xff;
1409
1410 #ifdef PSXBIOS_LOG
1411         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1412 #endif
1413
1414         Event[ev][spec].status = EvStACTIVE;
1415
1416         v0 = 1; pc0 = ra;
1417 }
1418
1419 void psxBios_TestEvent() { // 0b
1420         int ev, spec;
1421
1422         ev   = a0 & 0xff;
1423         spec = (a0 >> 8) & 0xff;
1424
1425         if (Event[ev][spec].status == EvStALREADY) {
1426                 Event[ev][spec].status = EvStACTIVE; v0 = 1;
1427         } else v0 = 0;
1428
1429 #ifdef PSXBIOS_LOG
1430         PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1431 #endif
1432
1433         pc0 = ra;
1434 }
1435
1436 void psxBios_EnableEvent() { // 0c
1437         int ev, spec;
1438
1439         ev   = a0 & 0xff;
1440         spec = (a0 >> 8) & 0xff;
1441
1442 #ifdef PSXBIOS_LOG
1443         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1444 #endif
1445
1446         Event[ev][spec].status = EvStACTIVE;
1447
1448         v0 = 1; pc0 = ra;
1449 }
1450
1451 void psxBios_DisableEvent() { // 0d
1452         int ev, spec;
1453
1454         ev   = a0 & 0xff;
1455         spec = (a0 >> 8) & 0xff;
1456
1457 #ifdef PSXBIOS_LOG
1458         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1459 #endif
1460
1461         Event[ev][spec].status = EvStWAIT;
1462
1463         v0 = 1; pc0 = ra;
1464 }
1465
1466 /*
1467  *      long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1468  */
1469
1470 void psxBios_OpenTh() { // 0e
1471         int th;
1472
1473         for (th=1; th<8; th++)
1474                 if (Thread[th].status == 0) break;
1475
1476 #ifdef PSXBIOS_LOG
1477         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1478 #endif
1479
1480         Thread[th].status = 1;
1481         Thread[th].func    = a0;
1482         Thread[th].reg[29] = a1;
1483         Thread[th].reg[28] = a2;
1484
1485         v0 = th; pc0 = ra;
1486 }
1487
1488 /*
1489  *      int CloseTh(long thread);
1490  */
1491
1492 void psxBios_CloseTh() { // 0f
1493         int th = a0 & 0xff;
1494
1495 #ifdef PSXBIOS_LOG
1496         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1497 #endif
1498
1499         if (Thread[th].status == 0) {
1500                 v0 = 0;
1501         } else {
1502                 Thread[th].status = 0;
1503                 v0 = 1;
1504         }
1505
1506         pc0 = ra;
1507 }
1508
1509 /*
1510  *      int ChangeTh(long thread);
1511  */
1512
1513 void psxBios_ChangeTh() { // 10
1514         int th = a0 & 0xff;
1515
1516 #ifdef PSXBIOS_LOG
1517 //      PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1518 #endif
1519
1520         if (Thread[th].status == 0 || CurThread == th) {
1521                 v0 = 0;
1522
1523                 pc0 = ra;
1524         } else {
1525                 v0 = 1;
1526
1527                 if (Thread[CurThread].status == 2) {
1528                         Thread[CurThread].status = 1;
1529                         Thread[CurThread].func = ra;
1530                         memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1531                 }
1532
1533                 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1534                 pc0 = Thread[th].func;
1535                 Thread[th].status = 2;
1536                 CurThread = th;
1537         }
1538 }
1539
1540 void psxBios_InitPAD() { // 0x12
1541 #ifdef PSXBIOS_LOG
1542         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1543 #endif
1544
1545         pad_buf1 = (char*)Ra0;
1546         pad_buf1len = a1;
1547         pad_buf2 = (char*)Ra2;
1548         pad_buf2len = a3;
1549
1550         v0 = 1; pc0 = ra;
1551 }
1552
1553 void psxBios_StartPAD() { // 13
1554 #ifdef PSXBIOS_LOG
1555         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1556 #endif
1557
1558         psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1559         psxRegs.CP0.n.Status |= 0x401;
1560         pc0 = ra;
1561 }
1562
1563 void psxBios_StopPAD() { // 14
1564 #ifdef PSXBIOS_LOG
1565         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1566 #endif
1567
1568         pad_buf1 = NULL;
1569         pad_buf2 = NULL;
1570         pc0 = ra;
1571 }
1572
1573 void psxBios_PAD_init() { // 15
1574 #ifdef PSXBIOS_LOG
1575         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1576 #endif
1577         psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1578         pad_buf = (int *)Ra1;
1579         *pad_buf = -1;
1580         psxRegs.CP0.n.Status |= 0x401;
1581         pc0 = ra;
1582 }
1583
1584 void psxBios_PAD_dr() { // 16
1585 #ifdef PSXBIOS_LOG
1586         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1587 #endif
1588
1589         v0 = -1; pc0 = ra;
1590 }
1591
1592 void psxBios_ReturnFromException() { // 17
1593         LoadRegs();
1594
1595         pc0 = psxRegs.CP0.n.EPC;
1596         if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1597
1598         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1599                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1600 }
1601
1602 void psxBios_ResetEntryInt() { // 18
1603 #ifdef PSXBIOS_LOG
1604         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1605 #endif
1606
1607         jmp_int = NULL;
1608         pc0 = ra;
1609 }
1610
1611 void psxBios_HookEntryInt() { // 19
1612 #ifdef PSXBIOS_LOG
1613         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1614 #endif
1615
1616         jmp_int = (u32*)Ra0;
1617         pc0 = ra;
1618 }
1619
1620 void psxBios_UnDeliverEvent() { // 0x20
1621         int ev, spec;
1622         int i;
1623
1624         GetEv();
1625         GetSpec();
1626
1627 #ifdef PSXBIOS_LOG
1628         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1629 #endif
1630
1631         if (Event[ev][spec].status == EvStALREADY &&
1632                 Event[ev][spec].mode == EvMdNOINTR)
1633                 Event[ev][spec].status = EvStACTIVE;
1634
1635         pc0 = ra;
1636 }
1637
1638 #define buopen(mcd) { \
1639         strcpy(FDesc[1 + mcd].name, Ra0+5); \
1640         FDesc[1 + mcd].offset = 0; \
1641         FDesc[1 + mcd].mode   = a1; \
1642  \
1643         for (i=1; i<16; i++) { \
1644                 ptr = Mcd##mcd##Data + 128 * i; \
1645                 if ((*ptr & 0xF0) != 0x50) continue; \
1646                 if (strcmp(FDesc[1 + mcd].name, ptr+0xa)) continue; \
1647                 FDesc[1 + mcd].mcfile = i; \
1648                 SysPrintf("open %s\n", ptr+0xa); \
1649                 v0 = 1 + mcd; \
1650                 break; \
1651         } \
1652         if (a1 & 0x200 && v0 == -1) { /* FCREAT */ \
1653                 for (i=1; i<16; i++) { \
1654                         int j, xor = 0; \
1655  \
1656                         ptr = Mcd##mcd##Data + 128 * i; \
1657                         if ((*ptr & 0xF0) == 0x50) continue; \
1658                         ptr[0] = 0x50 | (u8)(a1 >> 16); \
1659                         ptr[4] = 0x00; \
1660                         ptr[5] = 0x20; \
1661                         ptr[6] = 0x00; \
1662                         ptr[7] = 0x00; \
1663                         ptr[8] = 'B'; \
1664                         ptr[9] = 'I'; \
1665                         strcpy(ptr+0xa, FDesc[1 + mcd].name); \
1666                         for (j=0; j<127; j++) xor^= ptr[j]; \
1667                         ptr[127] = xor; \
1668                         FDesc[1 + mcd].mcfile = i; \
1669                         SysPrintf("openC %s\n", ptr); \
1670                         v0 = 1 + mcd; \
1671                         SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 128); \
1672                         break; \
1673                 } \
1674         } \
1675 }
1676
1677 /*
1678  *      int open(char *name , int mode);
1679  */
1680
1681 void psxBios_open() { // 0x32
1682         int i;
1683         char *ptr;
1684
1685 #ifdef PSXBIOS_LOG
1686         PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
1687 #endif
1688
1689         v0 = -1;
1690
1691         if (!strncmp(Ra0, "bu00", 4)) {
1692                 buopen(1);
1693         }
1694
1695         if (!strncmp(Ra0, "bu10", 4)) {
1696                 buopen(2);
1697         }
1698
1699         pc0 = ra;
1700 }
1701
1702 /*
1703  *      int lseek(int fd , int offset , int whence);
1704  */
1705
1706 void psxBios_lseek() { // 0x33
1707 #ifdef PSXBIOS_LOG
1708         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
1709 #endif
1710
1711         switch (a2) {
1712                 case 0: // SEEK_SET
1713                         FDesc[a0].offset = a1;
1714                         v0 = a1;
1715 //                      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1716 //                      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1717                         break;
1718
1719                 case 1: // SEEK_CUR
1720                         FDesc[a0].offset+= a1;
1721                         v0 = FDesc[a0].offset;
1722                         break;
1723         }
1724
1725         pc0 = ra;
1726 }
1727
1728 #define buread(mcd) { \
1729         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); \
1730         ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
1731         memcpy(Ra1, ptr, a2); \
1732         if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
1733         else v0 = a2; \
1734         FDesc[1 + mcd].offset += v0; \
1735         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
1736         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
1737 }
1738
1739 /*
1740  *      int read(int fd , void *buf , int nbytes);
1741  */
1742
1743 void psxBios_read() { // 0x34
1744         char *ptr;
1745
1746 #ifdef PSXBIOS_LOG
1747         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
1748 #endif
1749
1750         v0 = -1;
1751
1752         switch (a0) {
1753                 case 2: buread(1); break;
1754                 case 3: buread(2); break;
1755         }
1756
1757         pc0 = ra;
1758 }
1759
1760 #define buwrite(mcd) { \
1761         u32 offset =  + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
1762         SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
1763         ptr = Mcd##mcd##Data + offset; \
1764         memcpy(ptr, Ra1, a2); \
1765         FDesc[1 + mcd].offset += a2; \
1766         SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, offset, a2); \
1767         if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
1768         else v0 = a2; \
1769         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
1770         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
1771 }
1772
1773 /*
1774  *      int write(int fd , void *buf , int nbytes);
1775  */
1776
1777 void psxBios_write() { // 0x35/0x03
1778         char *ptr;
1779
1780         if (a0 == 1) { // stdout
1781                 char *ptr = Ra1;
1782
1783                 while (a2 > 0) {
1784                         SysPrintf("%c", *ptr++); a2--;
1785                 }
1786                 pc0 = ra; return;
1787         }
1788 #ifdef PSXBIOS_LOG
1789         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
1790 #endif
1791
1792         v0 = -1;
1793
1794         switch (a0) {
1795                 case 2: buwrite(1); break;
1796                 case 3: buwrite(2); break;
1797         }
1798
1799         pc0 = ra;
1800 }
1801
1802 /*
1803  *      int close(int fd);
1804  */
1805
1806 void psxBios_close() { // 0x36
1807 #ifdef PSXBIOS_LOG
1808         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
1809 #endif
1810
1811         v0 = a0;
1812         pc0 = ra;
1813 }
1814
1815 void psxBios_putchar() { // 3d
1816         SysPrintf("%c", (char)a0);
1817         pc0 = ra;
1818 }
1819
1820 void psxBios_puts() { // 3e/3f
1821         SysPrintf("%s", Ra0);
1822         pc0 = ra;
1823 }
1824
1825 char ffile[64], *pfile;
1826 int nfile;
1827
1828 #define bufile(mcd) { \
1829         while (nfile < 16) { \
1830                 int match=1; \
1831  \
1832                 ptr = Mcd##mcd##Data + 128 * nfile; \
1833                 nfile++; \
1834                 if ((*ptr & 0xF0) != 0x50) continue; \
1835                 ptr+= 0xa; \
1836                 if (pfile[0] == 0) { \
1837                         strcpy(dir->name, ptr); \
1838                 } else for (i=0; i<20; i++) { \
1839                         if (pfile[i] == ptr[i]) { \
1840                                 dir->name[i] = ptr[i]; \
1841                                 if (ptr[i] == 0) break; else continue; } \
1842                         if (pfile[i] == '?') { \
1843                                 dir->name[i] = ptr[i]; continue; } \
1844                         if (pfile[i] == '*') { \
1845                                 strcpy(dir->name+i, ptr+i); break; } \
1846                         match = 0; break; \
1847                 } \
1848                 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
1849                 if (match == 0) continue; \
1850                 dir->size = 8192; \
1851                 v0 = _dir; \
1852                 break; \
1853         } \
1854 }
1855
1856 /*
1857  *      struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
1858  */
1859
1860 void psxBios_firstfile() { // 42
1861         struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
1862         u32 _dir = a1;
1863         char *ptr;
1864         int i;
1865
1866 #ifdef PSXBIOS_LOG
1867         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
1868 #endif
1869
1870         v0 = 0;
1871
1872         strcpy(ffile, Ra0);
1873         pfile = ffile+5;
1874         nfile = 1;
1875         if (!strncmp(Ra0, "bu00", 4)) {
1876                 bufile(1);
1877         } else if (!strncmp(Ra0, "bu10", 4)) {
1878                 bufile(2);
1879         }
1880
1881         // firstfile() calls _card_read() internally, so deliver it's event
1882         DeliverEvent(0x11, 0x2);
1883
1884         pc0 = ra;
1885 }
1886
1887 /*
1888  *      struct DIRENTRY* nextfile(struct DIRENTRY *dir);
1889  */
1890
1891 void psxBios_nextfile() { // 43
1892         struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
1893         u32 _dir = a0;
1894         char *ptr;
1895         int i;
1896
1897 #ifdef PSXBIOS_LOG
1898         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
1899 #endif
1900
1901         v0 = 0;
1902
1903         if (!strncmp(ffile, "bu00", 4)) {
1904                 bufile(1);
1905         }
1906
1907         if (!strncmp(ffile, "bu10", 4)) {
1908                 bufile(2);
1909         }
1910
1911         pc0 = ra;
1912 }
1913
1914 #define burename(mcd) { \
1915         for (i=1; i<16; i++) { \
1916                 int namelen, j, xor = 0; \
1917                 ptr = Mcd##mcd##Data + 128 * i; \
1918                 if ((*ptr & 0xF0) != 0x50) continue; \
1919                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
1920                 namelen = strlen(Ra1+5); \
1921                 memcpy(ptr+0xa, Ra1+5, namelen); \
1922                 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
1923                 for (j=0; j<127; j++) xor^= ptr[j]; \
1924                 ptr[127] = xor; \
1925                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
1926                 v0 = 1; \
1927                 break; \
1928         } \
1929 }
1930
1931 /*
1932  *      int rename(char *old, char *new);
1933  */
1934
1935 void psxBios_rename() { // 44
1936         char *ptr;
1937         int i;
1938
1939 #ifdef PSXBIOS_LOG
1940         PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
1941 #endif
1942
1943         v0 = 0;
1944
1945         if (!strncmp(Ra0, "bu00", 4) && !strncmp(Ra1, "bu00", 4)) {
1946                 burename(1);
1947         }
1948
1949         if (!strncmp(Ra0, "bu10", 4) && !strncmp(Ra1, "bu10", 4)) {
1950                 burename(2);
1951         }
1952
1953         pc0 = ra;
1954 }
1955
1956
1957 #define budelete(mcd) { \
1958         for (i=1; i<16; i++) { \
1959                 ptr = Mcd##mcd##Data + 128 * i; \
1960                 if ((*ptr & 0xF0) != 0x50) continue; \
1961                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
1962                 *ptr = (*ptr & 0xf) | 0xA0; \
1963                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
1964                 SysPrintf("delete %s\n", ptr+0xa); \
1965                 v0 = 1; \
1966                 break; \
1967         } \
1968 }
1969
1970 /*
1971  *      int delete(char *name);
1972  */
1973
1974 void psxBios_delete() { // 45
1975         char *ptr;
1976         int i;
1977
1978 #ifdef PSXBIOS_LOG
1979         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
1980 #endif
1981
1982         v0 = 0;
1983
1984         if (!strncmp(Ra0, "bu00", 4)) {
1985                 budelete(1);
1986         }
1987
1988         if (!strncmp(Ra0, "bu10", 4)) {
1989                 budelete(2);
1990         }
1991
1992         pc0 = ra;
1993 }
1994
1995 void psxBios_InitCARD() { // 4a
1996 #ifdef PSXBIOS_LOG
1997         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
1998 #endif
1999
2000         CardState = 0;
2001
2002         pc0 = ra;
2003 }
2004
2005 void psxBios_StartCARD() { // 4b
2006 #ifdef PSXBIOS_LOG
2007         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2008 #endif
2009
2010         if (CardState == 0) CardState = 1;
2011
2012         pc0 = ra;
2013 }
2014
2015 void psxBios_StopCARD() { // 4c
2016 #ifdef PSXBIOS_LOG
2017         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2018 #endif
2019
2020         if (CardState == 1) CardState = 0;
2021
2022         pc0 = ra;
2023 }
2024
2025 void psxBios__card_write() { // 0x4e
2026         int port;
2027
2028 #ifdef PSXBIOS_LOG
2029         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2030 #endif
2031
2032         card_active_chan = a0;
2033         port = a0 >> 4;
2034
2035         if (port == 0) {
2036                 memcpy(Mcd1Data + a1 * 128, Ra2, 128);
2037                 SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2038         } else {
2039                 memcpy(Mcd2Data + a1 * 128, Ra2, 128);
2040                 SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2041         }
2042
2043         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2044 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2045
2046         v0 = 1; pc0 = ra;
2047 }
2048
2049 void psxBios__card_read() { // 0x4f
2050         int port;
2051
2052 #ifdef PSXBIOS_LOG
2053         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2054 #endif
2055
2056         card_active_chan = a0;
2057         port = a0 >> 4;
2058
2059         if (port == 0) {
2060                 memcpy(Ra2, Mcd1Data + a1 * 128, 128);
2061         } else {
2062                 memcpy(Ra2, Mcd2Data + a1 * 128, 128);
2063         }
2064
2065         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2066 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2067
2068         v0 = 1; pc0 = ra;
2069 }
2070
2071 void psxBios__new_card() { // 0x50
2072 #ifdef PSXBIOS_LOG
2073         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2074 #endif
2075
2076         pc0 = ra;
2077 }
2078
2079 void psxBios_Krom2RawAdd() { // 0x51
2080         int i = 0;
2081
2082         const u32 table_8140[][2] = {
2083                 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2084                 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2085                 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2086                 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2087                 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2088                 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2089                 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2090                 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2091                 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2092                 {0xffff, 0}
2093         };
2094
2095         const u32 table_889f[][2] = {
2096                 {0x889f, 0x3d68},  {0x8900, 0x40ec},  {0x897f, 0x4fb0},  {0x8a00, 0x56f4},
2097                 {0x8a7f, 0x65b8},  {0x8b00, 0x6cfc},  {0x8b7f, 0x7bc0},  {0x8c00, 0x8304},
2098                 {0x8c7f, 0x91c8},  {0x8d00, 0x990c},  {0x8d7f, 0xa7d0},  {0x8e00, 0xaf14},
2099                 {0x8e7f, 0xbdd8},  {0x8f00, 0xc51c},  {0x8f7f, 0xd3e0},  {0x9000, 0xdb24},
2100                 {0x907f, 0xe9e8},  {0x9100, 0xf12c},  {0x917f, 0xfff0},  {0x9200, 0x10734},
2101                 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2102                 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2103                 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2104                 {0xffff, 0}
2105         };
2106
2107         if (a0 >= 0x8140 && a0 <= 0x84be) {
2108                 while (table_8140[i][0] <= a0) i++;
2109                 a0 -= table_8140[i - 1][0];
2110                 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2111         } else if (a0 >= 0x889f && a0 <= 0x9872) {
2112                 while (table_889f[i][0] <= a0) i++;
2113                 a0 -= table_889f[i - 1][0];
2114                 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2115         } else {
2116                 v0 = 0xffffffff;
2117         }
2118
2119         pc0 = ra;
2120 }
2121
2122 void psxBios_GetC0Table() { // 56
2123 #ifdef PSXBIOS_LOG
2124         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2125 #endif
2126
2127         v0 = 0x674; pc0 = ra;
2128 }
2129
2130 void psxBios_GetB0Table() { // 57
2131 #ifdef PSXBIOS_LOG
2132         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2133 #endif
2134
2135         v0 = 0x874; pc0 = ra;
2136 }
2137
2138 void psxBios__card_chan() { // 0x58
2139 #ifdef PSXBIOS_LOG
2140         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2141 #endif
2142
2143         v0 = card_active_chan;
2144         pc0 = ra;
2145 }
2146
2147 void psxBios_ChangeClearPad() { // 5b
2148 #ifdef PSXBIOS_LOG
2149         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2150 #endif
2151
2152         pc0 = ra;
2153 }
2154
2155 /* System calls C0 */
2156
2157 /*
2158  * int SysEnqIntRP(int index , long *queue);
2159  */
2160
2161 void psxBios_SysEnqIntRP() { // 02
2162 #ifdef PSXBIOS_LOG
2163         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2164 #endif
2165
2166         SysIntRP[a0] = a1;
2167
2168         v0 = 0; pc0 = ra;
2169 }
2170
2171 /*
2172  * int SysDeqIntRP(int index , long *queue);
2173  */
2174
2175 void psxBios_SysDeqIntRP() { // 03
2176 #ifdef PSXBIOS_LOG
2177         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2178 #endif
2179
2180         SysIntRP[a0] = 0;
2181
2182         v0 = 0; pc0 = ra;
2183 }
2184
2185 void psxBios_ChangeClearRCnt() { // 0a
2186         u32 *ptr;
2187
2188 #ifdef PSXBIOS_LOG
2189         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2190 #endif
2191
2192         ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2193         v0 = *ptr;
2194         *ptr = a1;
2195
2196 //      psxRegs.CP0.n.Status|= 0x404;
2197         pc0 = ra;
2198 }
2199
2200 void psxBios_dummy() {
2201 #ifdef PSXBIOS_LOG
2202         PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2203 #endif
2204         pc0 = ra;
2205 }
2206
2207 void (*biosA0[256])();
2208 void (*biosB0[256])();
2209 void (*biosC0[256])();
2210
2211 #include "sjisfont.h"
2212
2213 void psxBiosInit() {
2214         u32 base, size;
2215         u32 *ptr;
2216         int i;
2217         uLongf len;
2218
2219         for(i = 0; i < 256; i++) {
2220                 biosA0[i] = NULL;
2221                 biosB0[i] = NULL;
2222                 biosC0[i] = NULL;
2223         }
2224         biosA0[0x3e] = psxBios_puts;
2225         biosA0[0x3f] = psxBios_printf;
2226
2227         biosB0[0x3d] = psxBios_putchar;
2228         biosB0[0x3f] = psxBios_puts;
2229
2230         if (!Config.HLE) return;
2231
2232         for(i = 0; i < 256; i++) {
2233                 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2234                 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2235                 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2236         }
2237
2238         biosA0[0x00] = psxBios_open;
2239         biosA0[0x01] = psxBios_lseek;
2240         biosA0[0x02] = psxBios_read;
2241         biosA0[0x03] = psxBios_write;
2242         biosA0[0x04] = psxBios_close;
2243         //biosA0[0x05] = psxBios_ioctl;
2244         //biosA0[0x06] = psxBios_exit;
2245         //biosA0[0x07] = psxBios_sys_a0_07;
2246         //biosA0[0x08] = psxBios_getc;
2247         //biosA0[0x09] = psxBios_putc;
2248         //biosA0[0x0a] = psxBios_todigit;
2249         //biosA0[0x0b] = psxBios_atof;
2250         //biosA0[0x0c] = psxBios_strtoul;
2251         //biosA0[0x0d] = psxBios_strtol;
2252         biosA0[0x0e] = psxBios_abs;
2253         biosA0[0x0f] = psxBios_labs;
2254         biosA0[0x10] = psxBios_atoi;
2255         biosA0[0x11] = psxBios_atol;
2256         //biosA0[0x12] = psxBios_atob;
2257         biosA0[0x13] = psxBios_setjmp;
2258         biosA0[0x14] = psxBios_longjmp;
2259         biosA0[0x15] = psxBios_strcat;
2260         biosA0[0x16] = psxBios_strncat;
2261         biosA0[0x17] = psxBios_strcmp;
2262         biosA0[0x18] = psxBios_strncmp;
2263         biosA0[0x19] = psxBios_strcpy;
2264         biosA0[0x1a] = psxBios_strncpy;
2265         biosA0[0x1b] = psxBios_strlen;
2266         biosA0[0x1c] = psxBios_index;
2267         biosA0[0x1d] = psxBios_rindex;
2268         biosA0[0x1e] = psxBios_strchr;
2269         biosA0[0x1f] = psxBios_strrchr;
2270         biosA0[0x20] = psxBios_strpbrk;
2271         biosA0[0x21] = psxBios_strspn;
2272         biosA0[0x22] = psxBios_strcspn;
2273         biosA0[0x23] = psxBios_strtok;
2274         biosA0[0x24] = psxBios_strstr;
2275         biosA0[0x25] = psxBios_toupper;
2276         biosA0[0x26] = psxBios_tolower;
2277         biosA0[0x27] = psxBios_bcopy;
2278         biosA0[0x28] = psxBios_bzero;
2279         biosA0[0x29] = psxBios_bcmp;
2280         biosA0[0x2a] = psxBios_memcpy;
2281         biosA0[0x2b] = psxBios_memset;
2282         biosA0[0x2c] = psxBios_memmove;
2283         biosA0[0x2d] = psxBios_memcmp;
2284         biosA0[0x2e] = psxBios_memchr;
2285         biosA0[0x2f] = psxBios_rand;
2286         biosA0[0x30] = psxBios_srand;
2287         biosA0[0x31] = psxBios_qsort;
2288         //biosA0[0x32] = psxBios_strtod;
2289         biosA0[0x33] = psxBios_malloc;
2290         biosA0[0x34] = psxBios_free;
2291         //biosA0[0x35] = psxBios_lsearch;
2292         //biosA0[0x36] = psxBios_bsearch;
2293         biosA0[0x37] = psxBios_calloc;
2294         biosA0[0x38] = psxBios_realloc;
2295         biosA0[0x39] = psxBios_InitHeap;
2296         //biosA0[0x3a] = psxBios__exit;
2297         biosA0[0x3b] = psxBios_getchar;
2298         biosA0[0x3c] = psxBios_putchar;
2299         //biosA0[0x3d] = psxBios_gets;
2300         //biosA0[0x40] = psxBios_sys_a0_40;
2301         //biosA0[0x41] = psxBios_LoadTest;
2302         biosA0[0x42] = psxBios_Load;
2303         biosA0[0x43] = psxBios_Exec;
2304         biosA0[0x44] = psxBios_FlushCache;
2305         //biosA0[0x45] = psxBios_InstallInterruptHandler;
2306         biosA0[0x46] = psxBios_GPU_dw;
2307         biosA0[0x47] = psxBios_mem2vram;
2308         biosA0[0x48] = psxBios_SendGPU;
2309         biosA0[0x49] = psxBios_GPU_cw;
2310         biosA0[0x4a] = psxBios_GPU_cwb;
2311         biosA0[0x4b] = psxBios_GPU_SendPackets;
2312         biosA0[0x4c] = psxBios_sys_a0_4c;
2313         biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2314         //biosA0[0x4e] = psxBios_GPU_sync;
2315         //biosA0[0x4f] = psxBios_sys_a0_4f;
2316         //biosA0[0x50] = psxBios_sys_a0_50;
2317         biosA0[0x51] = psxBios_LoadExec;
2318         //biosA0[0x52] = psxBios_GetSysSp;
2319         //biosA0[0x53] = psxBios_sys_a0_53;
2320         //biosA0[0x54] = psxBios__96_init_a54;
2321         //biosA0[0x55] = psxBios__bu_init_a55;
2322         //biosA0[0x56] = psxBios__96_remove_a56;
2323         //biosA0[0x57] = psxBios_sys_a0_57;
2324         //biosA0[0x58] = psxBios_sys_a0_58;
2325         //biosA0[0x59] = psxBios_sys_a0_59;
2326         //biosA0[0x5a] = psxBios_sys_a0_5a;
2327         //biosA0[0x5b] = psxBios_dev_tty_init;
2328         //biosA0[0x5c] = psxBios_dev_tty_open;
2329         //biosA0[0x5d] = psxBios_sys_a0_5d;
2330         //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2331         //biosA0[0x5f] = psxBios_dev_cd_open;
2332         //biosA0[0x60] = psxBios_dev_cd_read;
2333         //biosA0[0x61] = psxBios_dev_cd_close;
2334         //biosA0[0x62] = psxBios_dev_cd_firstfile;
2335         //biosA0[0x63] = psxBios_dev_cd_nextfile;
2336         //biosA0[0x64] = psxBios_dev_cd_chdir;
2337         //biosA0[0x65] = psxBios_dev_card_open;
2338         //biosA0[0x66] = psxBios_dev_card_read;
2339         //biosA0[0x67] = psxBios_dev_card_write;
2340         //biosA0[0x68] = psxBios_dev_card_close;
2341         //biosA0[0x69] = psxBios_dev_card_firstfile;
2342         //biosA0[0x6a] = psxBios_dev_card_nextfile;
2343         //biosA0[0x6b] = psxBios_dev_card_erase;
2344         //biosA0[0x6c] = psxBios_dev_card_undelete;
2345         //biosA0[0x6d] = psxBios_dev_card_format;
2346         //biosA0[0x6e] = psxBios_dev_card_rename;
2347         //biosA0[0x6f] = psxBios_dev_card_6f;
2348         biosA0[0x70] = psxBios__bu_init;
2349         biosA0[0x71] = psxBios__96_init;
2350         biosA0[0x72] = psxBios__96_remove;
2351         //biosA0[0x73] = psxBios_sys_a0_73;
2352         //biosA0[0x74] = psxBios_sys_a0_74;
2353         //biosA0[0x75] = psxBios_sys_a0_75;
2354         //biosA0[0x76] = psxBios_sys_a0_76;
2355         //biosA0[0x77] = psxBios_sys_a0_77;
2356         //biosA0[0x78] = psxBios__96_CdSeekL;
2357         //biosA0[0x79] = psxBios_sys_a0_79;
2358         //biosA0[0x7a] = psxBios_sys_a0_7a;
2359         //biosA0[0x7b] = psxBios_sys_a0_7b;
2360         //biosA0[0x7c] = psxBios__96_CdGetStatus;
2361         //biosA0[0x7d] = psxBios_sys_a0_7d;
2362         //biosA0[0x7e] = psxBios__96_CdRead;
2363         //biosA0[0x7f] = psxBios_sys_a0_7f;
2364         //biosA0[0x80] = psxBios_sys_a0_80;
2365         //biosA0[0x81] = psxBios_sys_a0_81;
2366         //biosA0[0x82] = psxBios_sys_a0_82;
2367         //biosA0[0x83] = psxBios_sys_a0_83;
2368         //biosA0[0x84] = psxBios_sys_a0_84;
2369         //biosA0[0x85] = psxBios__96_CdStop;
2370         //biosA0[0x86] = psxBios_sys_a0_86;
2371         //biosA0[0x87] = psxBios_sys_a0_87;
2372         //biosA0[0x88] = psxBios_sys_a0_88;
2373         //biosA0[0x89] = psxBios_sys_a0_89;
2374         //biosA0[0x8a] = psxBios_sys_a0_8a;
2375         //biosA0[0x8b] = psxBios_sys_a0_8b;
2376         //biosA0[0x8c] = psxBios_sys_a0_8c;
2377         //biosA0[0x8d] = psxBios_sys_a0_8d;
2378         //biosA0[0x8e] = psxBios_sys_a0_8e;
2379         //biosA0[0x8f] = psxBios_sys_a0_8f;
2380         //biosA0[0x90] = psxBios_sys_a0_90;
2381         //biosA0[0x91] = psxBios_sys_a0_91;
2382         //biosA0[0x92] = psxBios_sys_a0_92;
2383         //biosA0[0x93] = psxBios_sys_a0_93;
2384         //biosA0[0x94] = psxBios_sys_a0_94;
2385         //biosA0[0x95] = psxBios_sys_a0_95;
2386         //biosA0[0x96] = psxBios_AddCDROMDevice;
2387         //biosA0[0x97] = psxBios_AddMemCardDevide;
2388         //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2389         //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2390         //biosA0[0x9a] = psxBios_sys_a0_9a;
2391         //biosA0[0x9b] = psxBios_sys_a0_9b;
2392         //biosA0[0x9c] = psxBios_SetConf;
2393         //biosA0[0x9d] = psxBios_GetConf;
2394         //biosA0[0x9e] = psxBios_sys_a0_9e;
2395         biosA0[0x9f] = psxBios_SetMem;
2396         //biosA0[0xa0] = psxBios__boot;
2397         //biosA0[0xa1] = psxBios_SystemError;
2398         //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2399         //biosA0[0xa3] = psxBios_DequeueCdIntr;
2400         //biosA0[0xa4] = psxBios_sys_a0_a4;
2401         //biosA0[0xa5] = psxBios_ReadSector;
2402         //biosA0[0xa6] = psxBios_get_cd_status;
2403         //biosA0[0xa7] = psxBios_bufs_cb_0;
2404         //biosA0[0xa8] = psxBios_bufs_cb_1;
2405         //biosA0[0xa9] = psxBios_bufs_cb_2;
2406         //biosA0[0xaa] = psxBios_bufs_cb_3;
2407         biosA0[0xab] = psxBios__card_info;
2408         biosA0[0xac] = psxBios__card_load;
2409         //biosA0[0axd] = psxBios__card_auto;
2410         //biosA0[0xae] = psxBios_bufs_cd_4;
2411         //biosA0[0xaf] = psxBios_sys_a0_af;
2412         //biosA0[0xb0] = psxBios_sys_a0_b0;
2413         //biosA0[0xb1] = psxBios_sys_a0_b1;
2414         //biosA0[0xb2] = psxBios_do_a_long_jmp
2415         //biosA0[0xb3] = psxBios_sys_a0_b3;
2416         //biosA0[0xb4] = psxBios_sub_function;
2417 //*******************B0 CALLS****************************
2418         //biosB0[0x00] = psxBios_SysMalloc;
2419         //biosB0[0x01] = psxBios_sys_b0_01;
2420         biosB0[0x02] = psxBios_SetRCnt;
2421         biosB0[0x03] = psxBios_GetRCnt;
2422         biosB0[0x04] = psxBios_StartRCnt;
2423         biosB0[0x05] = psxBios_StopRCnt;
2424         biosB0[0x06] = psxBios_ResetRCnt;
2425         biosB0[0x07] = psxBios_DeliverEvent;
2426         biosB0[0x08] = psxBios_OpenEvent;
2427         biosB0[0x09] = psxBios_CloseEvent;
2428         biosB0[0x0a] = psxBios_WaitEvent;
2429         biosB0[0x0b] = psxBios_TestEvent;
2430         biosB0[0x0c] = psxBios_EnableEvent;
2431         biosB0[0x0d] = psxBios_DisableEvent;
2432         biosB0[0x0e] = psxBios_OpenTh;
2433         biosB0[0x0f] = psxBios_CloseTh;
2434         biosB0[0x10] = psxBios_ChangeTh;
2435         //biosB0[0x11] = psxBios_psxBios_b0_11;
2436         biosB0[0x12] = psxBios_InitPAD;
2437         biosB0[0x13] = psxBios_StartPAD;
2438         biosB0[0x14] = psxBios_StopPAD;
2439         biosB0[0x15] = psxBios_PAD_init;
2440         biosB0[0x16] = psxBios_PAD_dr;
2441         biosB0[0x17] = psxBios_ReturnFromException;
2442         biosB0[0x18] = psxBios_ResetEntryInt;
2443         biosB0[0x19] = psxBios_HookEntryInt;
2444         //biosB0[0x1a] = psxBios_sys_b0_1a;
2445         //biosB0[0x1b] = psxBios_sys_b0_1b;
2446         //biosB0[0x1c] = psxBios_sys_b0_1c;
2447         //biosB0[0x1d] = psxBios_sys_b0_1d;
2448         //biosB0[0x1e] = psxBios_sys_b0_1e;
2449         //biosB0[0x1f] = psxBios_sys_b0_1f;
2450         biosB0[0x20] = psxBios_UnDeliverEvent;
2451         //biosB0[0x21] = psxBios_sys_b0_21;
2452         //biosB0[0x22] = psxBios_sys_b0_22;
2453         //biosB0[0x23] = psxBios_sys_b0_23;
2454         //biosB0[0x24] = psxBios_sys_b0_24;
2455         //biosB0[0x25] = psxBios_sys_b0_25;
2456         //biosB0[0x26] = psxBios_sys_b0_26;
2457         //biosB0[0x27] = psxBios_sys_b0_27;
2458         //biosB0[0x28] = psxBios_sys_b0_28;
2459         //biosB0[0x29] = psxBios_sys_b0_29;
2460         //biosB0[0x2a] = psxBios_sys_b0_2a;
2461         //biosB0[0x2b] = psxBios_sys_b0_2b;
2462         //biosB0[0x2c] = psxBios_sys_b0_2c;
2463         //biosB0[0x2d] = psxBios_sys_b0_2d;
2464         //biosB0[0x2e] = psxBios_sys_b0_2e;
2465         //biosB0[0x2f] = psxBios_sys_b0_2f;
2466         //biosB0[0x30] = psxBios_sys_b0_30;
2467         //biosB0[0x31] = psxBios_sys_b0_31;
2468         biosB0[0x32] = psxBios_open;
2469         biosB0[0x33] = psxBios_lseek;
2470         biosB0[0x34] = psxBios_read;
2471         biosB0[0x35] = psxBios_write;
2472         biosB0[0x36] = psxBios_close;
2473         //biosB0[0x37] = psxBios_ioctl;
2474         //biosB0[0x38] = psxBios_exit;
2475         //biosB0[0x39] = psxBios_sys_b0_39;
2476         //biosB0[0x3a] = psxBios_getc;
2477         //biosB0[0x3b] = psxBios_putc;
2478         biosB0[0x3c] = psxBios_getchar;
2479         //biosB0[0x3e] = psxBios_gets;
2480         //biosB0[0x40] = psxBios_cd;
2481         //biosB0[0x41] = psxBios_format;
2482         biosB0[0x42] = psxBios_firstfile;
2483         biosB0[0x43] = psxBios_nextfile;
2484         biosB0[0x44] = psxBios_rename;
2485         biosB0[0x45] = psxBios_delete;
2486         //biosB0[0x46] = psxBios_undelete;
2487         //biosB0[0x47] = psxBios_AddDevice;
2488         //biosB0[0x48] = psxBios_RemoteDevice;
2489         //biosB0[0x49] = psxBios_PrintInstalledDevices;
2490         biosB0[0x4a] = psxBios_InitCARD;
2491         biosB0[0x4b] = psxBios_StartCARD;
2492         biosB0[0x4c] = psxBios_StopCARD;
2493         //biosB0[0x4d] = psxBios_sys_b0_4d;
2494         biosB0[0x4e] = psxBios__card_write;
2495         biosB0[0x4f] = psxBios__card_read;
2496         biosB0[0x50] = psxBios__new_card;
2497         biosB0[0x51] = psxBios_Krom2RawAdd;
2498         //biosB0[0x52] = psxBios_sys_b0_52;
2499         //biosB0[0x53] = psxBios_sys_b0_53;
2500         //biosB0[0x54] = psxBios__get_errno;
2501         //biosB0[0x55] = psxBios__get_error;
2502         biosB0[0x56] = psxBios_GetC0Table;
2503         biosB0[0x57] = psxBios_GetB0Table;
2504         biosB0[0x58] = psxBios__card_chan;
2505         //biosB0[0x59] = psxBios_sys_b0_59;
2506         //biosB0[0x5a] = psxBios_sys_b0_5a;
2507         biosB0[0x5b] = psxBios_ChangeClearPad;
2508         //biosB0[0x5c] = psxBios__card_status;
2509         //biosB0[0x5d] = psxBios__card_wait;
2510 //*******************C0 CALLS****************************
2511         //biosC0[0x00] = psxBios_InitRCnt;
2512         //biosC0[0x01] = psxBios_InitException;
2513         biosC0[0x02] = psxBios_SysEnqIntRP;
2514         biosC0[0x03] = psxBios_SysDeqIntRP;
2515         //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2516         //biosC0[0x05] = psxBios_get_free_TCB_slot;
2517         //biosC0[0x06] = psxBios_ExceptionHandler;
2518         //biosC0[0x07] = psxBios_InstallExeptionHandler;
2519         //biosC0[0x08] = psxBios_SysInitMemory;
2520         //biosC0[0x09] = psxBios_SysInitKMem;
2521         biosC0[0x0a] = psxBios_ChangeClearRCnt;
2522         //biosC0[0x0b] = psxBios_SystemError;
2523         //biosC0[0x0c] = psxBios_InitDefInt;
2524         //biosC0[0x0d] = psxBios_sys_c0_0d;
2525         //biosC0[0x0e] = psxBios_sys_c0_0e;
2526         //biosC0[0x0f] = psxBios_sys_c0_0f;
2527         //biosC0[0x10] = psxBios_sys_c0_10;
2528         //biosC0[0x11] = psxBios_sys_c0_11;
2529         //biosC0[0x12] = psxBios_InstallDevices;
2530         //biosC0[0x13] = psxBios_FlushStfInOutPut;
2531         //biosC0[0x14] = psxBios_sys_c0_14;
2532         //biosC0[0x15] = psxBios__cdevinput;
2533         //biosC0[0x16] = psxBios__cdevscan;
2534         //biosC0[0x17] = psxBios__circgetc;
2535         //biosC0[0x18] = psxBios__circputc;
2536         //biosC0[0x19] = psxBios_ioabort;
2537         //biosC0[0x1a] = psxBios_sys_c0_1a
2538         //biosC0[0x1b] = psxBios_KernelRedirect;
2539         //biosC0[0x1c] = psxBios_PatchAOTable;
2540 //************** THE END ***************************************
2541 /**/
2542         base = 0x1000;
2543         size = sizeof(EvCB) * 32;
2544         Event = (void *)&psxR[base]; base += size * 6;
2545         memset(Event, 0, size * 6);
2546         HwEV = Event;
2547         EvEV = Event + 32;
2548         RcEV = Event + 32 * 2;
2549         UeEV = Event + 32 * 3;
2550         SwEV = Event + 32 * 4;
2551         ThEV = Event + 32 * 5;
2552
2553         ptr = (u32 *)&psxM[0x0874]; // b0 table
2554         ptr[0] = SWAPu32(0x4c54 - 0x884);
2555
2556         ptr = (u32 *)&psxM[0x0674]; // c0 table
2557         ptr[6] = SWAPu32(0xc80);
2558
2559         memset(SysIntRP, 0, sizeof(SysIntRP));
2560         memset(Thread, 0, sizeof(Thread));
2561         Thread[0].status = 2; // main thread
2562
2563         jmp_int = NULL;
2564         pad_buf = NULL;
2565         pad_buf1 = NULL;
2566         pad_buf2 = NULL;
2567         pad_buf1len = pad_buf2len = 0;
2568         heap_addr = NULL;
2569         heap_end = NULL;
2570         CardState = -1;
2571         CurThread = 0;
2572         memset(FDesc, 0, sizeof(FDesc));
2573
2574         psxMu32ref(0x0150) = SWAPu32(0x160);
2575         psxMu32ref(0x0154) = SWAPu32(0x320);
2576         psxMu32ref(0x0160) = SWAPu32(0x248);
2577         strcpy((char *)&psxM[0x248], "bu");
2578 /*      psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
2579         psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
2580         psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
2581         psxMu32ref(0x09e0) = SWAPu32(0x43d0);
2582         psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
2583 */
2584         // opcode HLE
2585         psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
2586         psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
2587         psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
2588         psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
2589         psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
2590         psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
2591         psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
2592         psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
2593         psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
2594         psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
2595
2596         // initial stack pointer for BIOS interrupt
2597         psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
2598
2599         // initial RNG seed
2600         psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
2601
2602         // fonts
2603         len = 0x80000 - 0x66000;
2604         uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
2605         len = 0x80000 - 0x69d68;
2606         uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
2607
2608         // memory size 2 MB
2609         psxHu32ref(0x1060) = SWAPu32(0x00000b88);
2610
2611         hleSoftCall = FALSE;
2612 }
2613
2614 void psxBiosShutdown() {
2615 }
2616
2617 #define psxBios_PADpoll(pad) { \
2618         PAD##pad##_startPoll(pad); \
2619         pad_buf##pad[0] = 0; \
2620         pad_buf##pad[1] = PAD##pad##_poll(0x42); \
2621         if (!(pad_buf##pad[1] & 0x0f)) { \
2622                 bufcount = 32; \
2623         } else { \
2624                 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
2625         } \
2626         PAD##pad##_poll(0); \
2627         i = 2; \
2628         while (bufcount--) { \
2629                 pad_buf##pad[i++] = PAD##pad##_poll(0); \
2630         } \
2631 }
2632
2633 void biosInterrupt() {
2634         int i, bufcount;
2635
2636 //      if (psxHu32(0x1070) & 0x1) { // Vsync
2637                 if (pad_buf != NULL) {
2638                         u32 *buf = (u32*)pad_buf;
2639
2640                         if (!Config.UseNet) {
2641                                 PAD1_startPoll(1);
2642                                 if (PAD1_poll(0x42) == 0x23) {
2643                                         PAD1_poll(0);
2644                                         *buf = PAD1_poll(0) << 8;
2645                                         *buf |= PAD1_poll(0);
2646                                         PAD1_poll(0);
2647                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
2648                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
2649                                 } else {
2650                                         PAD1_poll(0);
2651                                         *buf = PAD1_poll(0) << 8;
2652                                         *buf|= PAD1_poll(0);
2653                                 }
2654
2655                                 PAD2_startPoll(2);
2656                                 if (PAD2_poll(0x42) == 0x23) {
2657                                         PAD2_poll(0);
2658                                         *buf |= PAD2_poll(0) << 24;
2659                                         *buf |= PAD2_poll(0) << 16;
2660                                         PAD2_poll(0);
2661                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
2662                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
2663                                 } else {
2664                                         PAD2_poll(0);
2665                                         *buf |= PAD2_poll(0) << 24;
2666                                         *buf |= PAD2_poll(0) << 16;
2667                                 }
2668                         } else {
2669                                 u16 data;
2670
2671                                 PAD1_startPoll(1);
2672                                 PAD1_poll(0x42);
2673                                 PAD1_poll(0);
2674                                 data = PAD1_poll(0) << 8;
2675                                 data |= PAD1_poll(0);
2676
2677                                 if (NET_sendPadData(&data, 2) == -1)
2678                                         netError();
2679
2680                                 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
2681                                         netError();
2682                                 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
2683                                         netError();
2684                         }
2685                 }
2686                 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
2687                         psxBios_PADpoll(1);
2688
2689                         if (NET_sendPadData(pad_buf1, i) == -1)
2690                                 netError();
2691
2692                         if (NET_recvPadData(pad_buf1, 1) == -1)
2693                                 netError();
2694                         if (NET_recvPadData(pad_buf2, 2) == -1)
2695                                 netError();
2696                 } else {
2697                         if (pad_buf1) {
2698                                 psxBios_PADpoll(1);
2699                         }
2700
2701                         if (pad_buf2) {
2702                                 psxBios_PADpoll(2);
2703                         }
2704                 }
2705
2706         if (psxHu32(0x1070) & 0x1) { // Vsync
2707                 if (RcEV[3][1].status == EvStACTIVE) {
2708                         softCall(RcEV[3][1].fhandler);
2709 //                      hwWrite32(0x1f801070, ~(1));
2710                 }
2711         }
2712
2713         if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
2714                 int i;
2715
2716                 for (i = 0; i < 3; i++) {
2717                         if (psxHu32(0x1070) & (1 << (i + 4))) {
2718                                 if (RcEV[i][1].status == EvStACTIVE) {
2719                                         softCall(RcEV[i][1].fhandler);
2720                                 }
2721                                 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
2722                         }
2723                 }
2724         }
2725 }
2726
2727 void psxBiosException() {
2728         int i;
2729
2730         switch (psxRegs.CP0.n.Cause & 0x3c) {
2731                 case 0x00: // Interrupt
2732 #ifdef PSXCPU_LOG
2733 //                      PSXCPU_LOG("interrupt\n");
2734 #endif
2735                         SaveRegs();
2736
2737                         sp = psxMu32(0x6c80); // create new stack for interrupt handlers
2738
2739                         biosInterrupt();
2740
2741                         for (i = 0; i < 8; i++) {
2742                                 if (SysIntRP[i]) {
2743                                         u32 *queue = (u32 *)PSXM(SysIntRP[i]);
2744
2745                                         s0 = queue[2];
2746                                         softCall(queue[1]);
2747                                 }
2748                         }
2749
2750                         if (jmp_int != NULL) {
2751                                 int i;
2752
2753                                 psxHwWrite32(0x1f801070, 0xffffffff);
2754
2755                                 ra = jmp_int[0];
2756                                 sp = jmp_int[1];
2757                                 fp = jmp_int[2];
2758                                 for (i = 0; i < 8; i++) // s0-s7
2759                                          psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
2760                                 gp = jmp_int[11];
2761
2762                                 v0 = 1;
2763                                 pc0 = ra;
2764                                 return;
2765                         }
2766                         psxHwWrite16(0x1f801070, 0);
2767                         break;
2768
2769                 case 0x20: // Syscall
2770 #ifdef PSXCPU_LOG
2771                         PSXCPU_LOG("syscall exp %x\n", a0);
2772 #endif
2773                         switch (a0) {
2774                                 case 1: // EnterCritical - disable irq's
2775                                         psxRegs.CP0.n.Status &= ~0x404;
2776 v0=1;   // HDHOSHY experimental patch: Spongebob, Coldblood, fearEffect, Medievil2, Martian Gothic
2777                                         break;
2778
2779                                 case 2: // ExitCritical - enable irq's
2780                                         psxRegs.CP0.n.Status |= 0x404;
2781                                         break;
2782                         }
2783                         pc0 = psxRegs.CP0.n.EPC + 4;
2784
2785                         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
2786                                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
2787                         return;
2788
2789                 default:
2790 #ifdef PSXCPU_LOG
2791                         PSXCPU_LOG("unknown bios exception!\n");
2792 #endif
2793                         break;
2794         }
2795
2796         pc0 = psxRegs.CP0.n.EPC;
2797         if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
2798
2799         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
2800                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
2801 }
2802
2803 #define bfreeze(ptr, size) { \
2804         if (Mode == 1) memcpy(&psxR[base], ptr, size); \
2805         if (Mode == 0) memcpy(ptr, &psxR[base], size); \
2806         base += size; \
2807 }
2808
2809 #define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
2810 #define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
2811
2812 #define bfreezepsxMptr(ptr, type) { \
2813         if (Mode == 1) { \
2814                 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
2815                 else psxRu32ref(base) = 0; \
2816         } else { \
2817                 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
2818                 else (ptr) = NULL; \
2819         } \
2820         base += sizeof(u32); \
2821 }
2822
2823 void psxBiosFreeze(int Mode) {
2824         u32 base = 0x40000;
2825
2826         bfreezepsxMptr(jmp_int, u32);
2827         bfreezepsxMptr(pad_buf, int);
2828         bfreezepsxMptr(pad_buf1, char);
2829         bfreezepsxMptr(pad_buf2, char);
2830         bfreezepsxMptr(heap_addr, u32);
2831         bfreezel(&pad_buf1len);
2832         bfreezel(&pad_buf2len);
2833         bfreezes(regs);
2834         bfreezes(SysIntRP);
2835         bfreezel(&CardState);
2836         bfreezes(Thread);
2837         bfreezel(&CurThread);
2838         bfreezes(FDesc);
2839         bfreezel(&card_active_chan);
2840 }