libpcsxcore/psxbios.c

   1 /***************************************************************************
   2  *   Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team              *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA.           *
  18  ***************************************************************************/
  19
  20 /*
  21  * Internal simulated HLE BIOS.
  22  */
  23
  24 // TODO: implement all system calls, count the exact CPU cycles of system calls.
  25
  26 #include "psxbios.h"
  27 #include "psxhw.h"
  28 #include "gpu.h"
  29 #include <zlib.h>
  30
  31 #undef SysPrintf
  32 #define SysPrintf if (Config.PsxOut) printf
  33
  34 char *biosA0n[256] = {
  35 // 0x00
  36         "open",         "lseek",        "read",         "write",
  37         "close",        "ioctl",        "exit",         "sys_a0_07",
  38         "getc",         "putc",         "todigit",      "atof",
  39         "strtoul",      "strtol",       "abs",          "labs",
  40 // 0x10
  41         "atoi",         "atol",         "atob",         "setjmp",
  42         "longjmp",      "strcat",       "strncat",      "strcmp",
  43         "strncmp",      "strcpy",       "strncpy",      "strlen",
  44         "index",        "rindex",       "strchr",       "strrchr",
  45 // 0x20
  46         "strpbrk",      "strspn",       "strcspn",      "strtok",
  47         "strstr",       "toupper",      "tolower",      "bcopy",
  48         "bzero",        "bcmp",         "memcpy",       "memset",
  49         "memmove",      "memcmp",       "memchr",       "rand",
  50 // 0x30
  51         "srand",        "qsort",        "strtod",       "malloc",
  52         "free",         "lsearch",      "bsearch",      "calloc",
  53         "realloc",      "InitHeap",     "_exit",        "getchar",
  54         "putchar",      "gets",         "puts",         "printf",
  55 // 0x40
  56         "sys_a0_40",            "LoadTest",                                     "Load",         "Exec",
  57         "FlushCache",           "InstallInterruptHandler",      "GPU_dw",       "mem2vram",
  58         "SendGPUStatus",        "GPU_cw",                                       "GPU_cwb",      "SendPackets",
  59         "sys_a0_4c",            "GetGPUStatus",                         "GPU_sync",     "sys_a0_4f",
  60 // 0x50
  61         "sys_a0_50",            "LoadExec",                             "GetSysSp",             "sys_a0_53",
  62         "_96_init()",           "_bu_init()",                   "_96_remove()", "sys_a0_57",
  63         "sys_a0_58",            "sys_a0_59",                    "sys_a0_5a",    "dev_tty_init",
  64         "dev_tty_open",         "sys_a0_5d",                    "dev_tty_ioctl","dev_cd_open",
  65 // 0x60
  66         "dev_cd_read",          "dev_cd_close",                 "dev_cd_firstfile",     "dev_cd_nextfile",
  67         "dev_cd_chdir",         "dev_card_open",                "dev_card_read",        "dev_card_write",
  68         "dev_card_close",       "dev_card_firstfile",   "dev_card_nextfile","dev_card_erase",
  69         "dev_card_undelete","dev_card_format",          "dev_card_rename",      "dev_card_6f",
  70 // 0x70
  71         "_bu_init",                     "_96_init",             "_96_remove",           "sys_a0_73",
  72         "sys_a0_74",            "sys_a0_75",    "sys_a0_76",            "sys_a0_77",
  73         "_96_CdSeekL",          "sys_a0_79",    "sys_a0_7a",            "sys_a0_7b",
  74         "_96_CdGetStatus",      "sys_a0_7d",    "_96_CdRead",           "sys_a0_7f",
  75 // 0x80
  76         "sys_a0_80",            "sys_a0_81",    "sys_a0_82",            "sys_a0_83",
  77         "sys_a0_84",            "_96_CdStop",   "sys_a0_86",            "sys_a0_87",
  78         "sys_a0_88",            "sys_a0_89",    "sys_a0_8a",            "sys_a0_8b",
  79         "sys_a0_8c",            "sys_a0_8d",    "sys_a0_8e",            "sys_a0_8f",
  80 // 0x90
  81         "sys_a0_90",            "sys_a0_91",    "sys_a0_92",            "sys_a0_93",
  82         "sys_a0_94",            "sys_a0_95",    "AddCDROMDevice",       "AddMemCardDevide",
  83         "DisableKernelIORedirection",           "EnableKernelIORedirection", "sys_a0_9a", "sys_a0_9b",
  84         "SetConf",                      "GetConf",              "sys_a0_9e",            "SetMem",
  85 // 0xa0
  86         "_boot",                        "SystemError",  "EnqueueCdIntr",        "DequeueCdIntr",
  87         "sys_a0_a4",            "ReadSector",   "get_cd_status",        "bufs_cb_0",
  88         "bufs_cb_1",            "bufs_cb_2",    "bufs_cb_3",            "_card_info",
  89         "_card_load",           "_card_auto",   "bufs_cd_4",            "sys_a0_af",
  90 // 0xb0
  91         "sys_a0_b0",            "sys_a0_b1",    "do_a_long_jmp",        "sys_a0_b3",
  92         "?? sub_function",
  93 };
  94
  95 char *biosB0n[256] = {
  96 // 0x00
  97         "SysMalloc",            "sys_b0_01",    "sys_b0_02",    "sys_b0_03",
  98         "sys_b0_04",            "sys_b0_05",    "sys_b0_06",    "DeliverEvent",
  99         "OpenEvent",            "CloseEvent",   "WaitEvent",    "TestEvent",
 100         "EnableEvent",          "DisableEvent", "OpenTh",               "CloseTh",
 101 // 0x10
 102         "ChangeTh",                     "sys_b0_11",    "InitPAD",              "StartPAD",
 103         "StopPAD",                      "PAD_init",             "PAD_dr",               "ReturnFromExecption",
 104         "ResetEntryInt",        "HookEntryInt", "sys_b0_1a",    "sys_b0_1b",
 105         "sys_b0_1c",            "sys_b0_1d",    "sys_b0_1e",    "sys_b0_1f",
 106 // 0x20
 107         "UnDeliverEvent",       "sys_b0_21",    "sys_b0_22",    "sys_b0_23",
 108         "sys_b0_24",            "sys_b0_25",    "sys_b0_26",    "sys_b0_27",
 109         "sys_b0_28",            "sys_b0_29",    "sys_b0_2a",    "sys_b0_2b",
 110         "sys_b0_2c",            "sys_b0_2d",    "sys_b0_2e",    "sys_b0_2f",
 111 // 0x30
 112         "sys_b0_30",            "sys_b0_31",    "open",                 "lseek",
 113         "read",                         "write",                "close",                "ioctl",
 114         "exit",                         "sys_b0_39",    "getc",                 "putc",
 115         "getchar",                      "putchar",              "gets",                 "puts",
 116 // 0x40
 117         "cd",                           "format",               "firstfile",    "nextfile",
 118         "rename",                       "delete",               "undelete",             "AddDevice",
 119         "RemoteDevice",         "PrintInstalledDevices", "InitCARD", "StartCARD",
 120         "StopCARD",                     "sys_b0_4d",    "_card_write",  "_card_read",
 121 // 0x50
 122         "_new_card",            "Krom2RawAdd",  "sys_b0_52",    "sys_b0_53",
 123         "_get_errno",           "_get_error",   "GetC0Table",   "GetB0Table",
 124         "_card_chan",           "sys_b0_59",    "sys_b0_5a",    "ChangeClearPAD",
 125         "_card_status",         "_card_wait",
 126 };
 127
 128 char *biosC0n[256] = {
 129 // 0x00
 130         "InitRCnt",                       "InitException",              "SysEnqIntRP",          "SysDeqIntRP",
 131         "get_free_EvCB_slot", "get_free_TCB_slot",      "ExceptionHandler",     "InstallExeptionHandler",
 132         "SysInitMemory",          "SysInitKMem",                "ChangeClearRCnt",      "SystemError",
 133         "InitDefInt",             "sys_c0_0d",                  "sys_c0_0e",            "sys_c0_0f",
 134 // 0x10
 135         "sys_c0_10",              "sys_c0_11",                  "InstallDevices",       "FlushStfInOutPut",
 136         "sys_c0_14",              "_cdevinput",                 "_cdevscan",            "_circgetc",
 137         "_circputc",              "ioabort",                    "sys_c0_1a",            "KernelRedirect",
 138         "PatchAOTable",
 139 };
 140
 141 //#define r0 (psxRegs.GPR.n.r0)
 142 #define at (psxRegs.GPR.n.at)
 143 #define v0 (psxRegs.GPR.n.v0)
 144 #define v1 (psxRegs.GPR.n.v1)
 145 #define a0 (psxRegs.GPR.n.a0)
 146 #define a1 (psxRegs.GPR.n.a1)
 147 #define a2 (psxRegs.GPR.n.a2)
 148 #define a3 (psxRegs.GPR.n.a3)
 149 #define t0 (psxRegs.GPR.n.t0)
 150 #define t1 (psxRegs.GPR.n.t1)
 151 #define t2 (psxRegs.GPR.n.t2)
 152 #define t3 (psxRegs.GPR.n.t3)
 153 #define t4 (psxRegs.GPR.n.t4)
 154 #define t5 (psxRegs.GPR.n.t5)
 155 #define t6 (psxRegs.GPR.n.t6)
 156 #define t7 (psxRegs.GPR.n.t7)
 157 #define t8 (psxRegs.GPR.n.t8)
 158 #define t9 (psxRegs.GPR.n.t9)
 159 #define s0 (psxRegs.GPR.n.s0)
 160 #define s1 (psxRegs.GPR.n.s1)
 161 #define s2 (psxRegs.GPR.n.s2)
 162 #define s3 (psxRegs.GPR.n.s3)
 163 #define s4 (psxRegs.GPR.n.s4)
 164 #define s5 (psxRegs.GPR.n.s5)
 165 #define s6 (psxRegs.GPR.n.s6)
 166 #define s7 (psxRegs.GPR.n.s7)
 167 #define k0 (psxRegs.GPR.n.k0)
 168 #define k1 (psxRegs.GPR.n.k1)
 169 #define gp (psxRegs.GPR.n.gp)
 170 #define sp (psxRegs.GPR.n.sp)
 171 #define fp (psxRegs.GPR.n.s8)
 172 #define ra (psxRegs.GPR.n.ra)
 173 #define pc0 (psxRegs.pc)
 174
 175 #define Ra0 ((char *)PSXM(a0))
 176 #define Ra1 ((char *)PSXM(a1))
 177 #define Ra2 ((char *)PSXM(a2))
 178 #define Ra3 ((char *)PSXM(a3))
 179 #define Rv0 ((char *)PSXM(v0))
 180 #define Rsp ((char *)PSXM(sp))
 181
 182 typedef struct {
 183         u32 desc;
 184         s32 status;
 185         s32 mode;
 186         u32 fhandler;
 187 } EvCB[32];
 188
 189 #define EvStUNUSED      0x0000
 190 #define EvStWAIT        0x1000
 191 #define EvStACTIVE      0x2000
 192 #define EvStALREADY 0x4000
 193
 194 #define EvMdINTR        0x1000
 195 #define EvMdNOINTR      0x2000
 196
 197 /*
 198 typedef struct {
 199         s32 next;
 200         s32 func1;
 201         s32 func2;
 202         s32 pad;
 203 } SysRPst;
 204 */
 205
 206 typedef struct {
 207         s32 status;
 208         s32 mode;
 209         u32 reg[32];
 210         u32 func;
 211 } TCB;
 212
 213 typedef struct {
 214         u32 _pc0;
 215         u32 gp0;
 216         u32 t_addr;
 217         u32 t_size;
 218         u32 d_addr;
 219         u32 d_size;
 220         u32 b_addr;
 221         u32 b_size;
 222         u32 S_addr;
 223         u32 s_size;
 224         u32 _sp, _fp, _gp, ret, base;
 225 } EXEC;
 226
 227 struct DIRENTRY {
 228         char name[20];
 229         s32 attr;
 230         s32 size;
 231         u32 next;
 232         s32 head;
 233         char system[4];
 234 };
 235
 236 typedef struct {
 237         char name[32];
 238         u32  mode;
 239         u32  offset;
 240         u32  size;
 241         u32  mcfile;
 242 } FileDesc;
 243
 244 static u32 *jmp_int = NULL;
 245 static int *pad_buf = NULL;
 246 static char *pad_buf1 = NULL, *pad_buf2 = NULL;
 247 static int pad_buf1len, pad_buf2len;
 248
 249 static u32 regs[35];
 250 static EvCB *Event;
 251 static EvCB *HwEV; // 0xf0
 252 static EvCB *EvEV; // 0xf1
 253 static EvCB *RcEV; // 0xf2
 254 static EvCB *UeEV; // 0xf3
 255 static EvCB *SwEV; // 0xf4
 256 static EvCB *ThEV; // 0xff
 257 static u32 heap_size = 0;
 258 static u32 *heap_addr = NULL;
 259 static u32 *heap_end = NULL;
 260 static u32 SysIntRP[8];
 261 static int CardState = -1;
 262 static TCB Thread[8];
 263 static int CurThread = 0;
 264 static FileDesc FDesc[32];
 265 static u32 card_active_chan;
 266
 267 boolean hleSoftCall = FALSE;
 268
 269 static inline void softCall(u32 pc) {
 270         pc0 = pc;
 271         ra = 0x80001000;
 272
 273         hleSoftCall = TRUE;
 274
 275         while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
 276
 277         hleSoftCall = FALSE;
 278 }
 279
 280 static inline void softCall2(u32 pc) {
 281         u32 sra = ra;
 282         pc0 = pc;
 283         ra = 0x80001000;
 284
 285         hleSoftCall = TRUE;
 286
 287         while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
 288         ra = sra;
 289
 290         hleSoftCall = FALSE;
 291 }
 292
 293 static inline void DeliverEvent(u32 ev, u32 spec) {
 294         if (Event[ev][spec].status != EvStACTIVE) return;
 295
 296 //      Event[ev][spec].status = EvStALREADY;
 297         if (Event[ev][spec].mode == EvMdINTR) {
 298                 softCall2(Event[ev][spec].fhandler);
 299         } else Event[ev][spec].status = EvStALREADY;
 300 }
 301
 302 static inline void SaveRegs() {
 303         memcpy(regs, psxRegs.GPR.r, 32*4);
 304         regs[32] = psxRegs.GPR.n.lo;
 305         regs[33] = psxRegs.GPR.n.hi;
 306         regs[34] = psxRegs.pc;
 307 }
 308
 309 static inline void LoadRegs() {
 310         memcpy(psxRegs.GPR.r, regs, 32*4);
 311         psxRegs.GPR.n.lo = regs[32];
 312         psxRegs.GPR.n.hi = regs[33];
 313 }
 314
 315 /*                                           *
 316 //                                           *
 317 //                                           *
 318 //               System calls A0             */
 319
 320
 321 #define buread(Ra1, mcd, length) { \
 322         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); \
 323         ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
 324         memcpy(Ra1, ptr, length); \
 325         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
 326         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
 327         if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
 328         else v0 = length; \
 329         FDesc[1 + mcd].offset += v0; \
 330 }
 331
 332 #define buwrite(Ra1, mcd, length) { \
 333         u32 offset =  + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
 334         SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
 335         ptr = Mcd##mcd##Data + offset; \
 336         memcpy(ptr, Ra1, length); \
 337         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
 338         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
 339         FDesc[1 + mcd].offset += length; \
 340         if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
 341         else v0 = length; \
 342 }
 343
 344
 345 /* Internally redirects to "FileRead(fd,tempbuf,1)".*/
 346 /* For some strange reason, the returned character is sign-expanded; */
 347 /* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
 348 /* TODO FIX ME : Properly implement this behaviour */
 349 void psxBios_getc(void) // 0x03, 0x35
 350 {
 351         char *ptr;
 352         void *pa1 = Ra1;
 353 #ifdef PSXBIOS_LOG
 354         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
 355 #endif
 356         v0 = -1;
 357
 358         if (pa1) {
 359                 switch (a0) {
 360                         case 2: buread(pa1, 1, 1); break;
 361                         case 3: buread(pa1, 2, 1); break;
 362                 }
 363         }
 364
 365         pc0 = ra;
 366 }
 367
 368 /* Copy of psxBios_write, except size is 1. */
 369 void psxBios_putc(void) // 0x09, 0x3B
 370 {
 371         char *ptr;
 372         void *pa1 = Ra1;
 373 #ifdef PSXBIOS_LOG
 374         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
 375 #endif
 376         v0 = -1;
 377         if (!pa1) {
 378                 pc0 = ra;
 379                 return;
 380         }
 381
 382         if (a0 == 1) { // stdout
 383                 char *ptr = (char *)pa1;
 384
 385                 v0 = a2;
 386                 while (a2 > 0) {
 387                         printf("%c", *ptr++); a2--;
 388                 }
 389                 pc0 = ra; return;
 390         }
 391
 392         switch (a0) {
 393                 case 2: buwrite(pa1, 1, 1); break;
 394                 case 3: buwrite(pa1, 2, 1); break;
 395         }
 396
 397         pc0 = ra;
 398 }
 399
 400 void psxBios_todigit(void) // 0x0a
 401 {
 402         int c = a0;
 403 #ifdef PSXBIOS_LOG
 404         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
 405 #endif
 406         c &= 0xFF;
 407         if (c >= 0x30 && c < 0x3A) {
 408                 c -= 0x30;
 409         }
 410         else if (c > 0x60 && c < 0x7B) {
 411                 c -= 0x20;
 412         }
 413         else if (c > 0x40 && c < 0x5B) {
 414                 c = c - 0x41 + 10;
 415         }
 416         else if (c >= 0x80) {
 417                 c = -1;
 418         }
 419         else
 420         {
 421                 c = 0x0098967F;
 422         }
 423         v0 = c;
 424         pc0 = ra;
 425 }
 426
 427 void psxBios_abs() { // 0x0e
 428         if ((s32)a0 < 0) v0 = -(s32)a0;
 429         else v0 = a0;
 430         pc0 = ra;
 431 }
 432
 433 void psxBios_labs() { // 0x0f
 434         psxBios_abs();
 435 }
 436
 437 void psxBios_atoi() { // 0x10
 438         s32 n = 0, f = 0;
 439         char *p = (char *)Ra0;
 440
 441         for (;;p++) {
 442                 switch (*p) {
 443                         case ' ': case '\t': continue;
 444                         case '-': f++;
 445                         case '+': p++;
 446                 }
 447                 break;
 448         }
 449
 450         while (*p >= '0' && *p <= '9') {
 451                 n = n * 10 + *p++ - '0';
 452         }
 453
 454         v0 = (f ? -n : n);
 455         pc0 = ra;
 456 }
 457
 458 void psxBios_atol() { // 0x11
 459         psxBios_atoi();
 460 }
 461
 462 void psxBios_setjmp() { // 0x13
 463         u32 *jmp_buf = (u32 *)Ra0;
 464         int i;
 465
 466 #ifdef PSXBIOS_LOG
 467         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
 468 #endif
 469
 470         jmp_buf[0] = ra;
 471         jmp_buf[1] = sp;
 472         jmp_buf[2] = fp;
 473         for (i = 0; i < 8; i++) // s0-s7
 474                 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
 475         jmp_buf[11] = gp;
 476
 477         v0 = 0; pc0 = ra;
 478 }
 479
 480 void psxBios_longjmp() { // 0x14
 481         u32 *jmp_buf = (u32 *)Ra0;
 482         int i;
 483
 484 #ifdef PSXBIOS_LOG
 485         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
 486 #endif
 487
 488         ra = jmp_buf[0]; /* ra */
 489         sp = jmp_buf[1]; /* sp */
 490         fp = jmp_buf[2]; /* fp */
 491         for (i = 0; i < 8; i++) // s0-s7
 492                 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
 493         gp = jmp_buf[11]; /* gp */
 494
 495         v0 = a1; pc0 = ra;
 496 }
 497
 498 void psxBios_strcat() { // 0x15
 499         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 500
 501 #ifdef PSXBIOS_LOG
 502         PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
 503 #endif
 504         if (a0 == 0 || a1 == 0)
 505         {
 506                 v0 = 0;
 507                 pc0 = ra;
 508                 return;
 509         }
 510         while (*p1++);
 511         --p1;
 512         while ((*p1++ = *p2++) != '\0');
 513
 514         v0 = a0; pc0 = ra;
 515 }
 516
 517 void psxBios_strncat() { // 0x16
 518         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 519         s32 n = a2;
 520
 521 #ifdef PSXBIOS_LOG
 522         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
 523 #endif
 524         if (a0 == 0 || a1 == 0)
 525         {
 526                 v0 = 0;
 527                 pc0 = ra;
 528                 return;
 529         }
 530         while (*p1++);
 531         --p1;
 532         while ((*p1++ = *p2++) != '\0') {
 533                 if (--n < 0) {
 534                         *--p1 = '\0';
 535                         break;
 536                 }
 537         }
 538
 539         v0 = a0; pc0 = ra;
 540 }
 541
 542 void psxBios_strcmp() { // 0x17
 543         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 544         s32 n=0;
 545         if (a0 == 0 && a1 == 0)
 546         {
 547                 v0 = 0;
 548                 pc0 = ra;
 549                 return;
 550         }
 551         else if (a0 == 0 && a1 != 0)
 552         {
 553                 v0 = -1;
 554                 pc0 = ra;
 555                 return;
 556         }
 557         else if (a0 != 0 && a1 == 0)
 558         {
 559                 v0 = 1;
 560                 pc0 = ra;
 561                 return;
 562         }
 563 #ifdef PSXBIOS_LOG
 564         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
 565 #endif
 566
 567         while (*p1 == *p2++) {
 568                 n++;
 569                 if (*p1++ == '\0') {
 570                         v1=n-1;
 571                         a0+=n;
 572                         a1+=n;
 573                         v0 = 0;
 574                         pc0 = ra;
 575                         return;
 576                 }
 577         }
 578
 579         v0 = (*p1 - *--p2);
 580         v1 = n;
 581         a0+=n;
 582         a1+=n;
 583         pc0 = ra;
 584 }
 585
 586 void psxBios_strncmp() { // 0x18
 587         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 588         s32 n = a2;
 589
 590 #ifdef PSXBIOS_LOG
 591         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
 592 #endif
 593
 594         while (--n >= 0 && *p1 == *p2++) {
 595                 if (*p1++ == '\0') {
 596                         v0 = 0;
 597                         pc0 = ra;
 598                         return;
 599                 }
 600         }
 601
 602         v0 = (n < 0 ? 0 : *p1 - *--p2);
 603         pc0 = ra;
 604 }
 605
 606 void psxBios_strcpy() { // 0x19
 607         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 608         while ((*p1++ = *p2++) != '\0');
 609
 610         v0 = a0; pc0 = ra;
 611 }
 612
 613 void psxBios_strncpy() { // 0x1a
 614         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 615         s32 n = a2, i;
 616
 617         for (i = 0; i < n; i++) {
 618                 if ((*p1++ = *p2++) == '\0') {
 619                         while (++i < n) {
 620                                 *p1++ = '\0';
 621                         }
 622                         v0 = a0; pc0 = ra;
 623                         return;
 624                 }
 625         }
 626
 627         v0 = a0; pc0 = ra;
 628 }
 629
 630 void psxBios_strlen() { // 0x1b
 631         char *p = (char *)Ra0;
 632         v0 = 0;
 633         while (*p++) v0++;
 634         pc0 = ra;
 635 }
 636
 637 void psxBios_index() { // 0x1c
 638         char *p = (char *)Ra0;
 639         if (a0 == 0)
 640         {
 641                 v0 = 0;
 642                 pc0 = ra;
 643                 return;
 644         }
 645
 646         do {
 647                 if (*p == a1) {
 648                         v0 = a0 + (p - (char *)Ra0);
 649                         pc0 = ra;
 650                         return;
 651                 }
 652         } while (*p++ != '\0');
 653
 654         v0 = 0; pc0 = ra;
 655 }
 656
 657 void psxBios_rindex() { // 0x1d
 658         char *p = (char *)Ra0;
 659
 660         v0 = 0;
 661         if (a0 == 0)
 662         {
 663                 pc0 = ra;
 664                 return;
 665         }
 666         do {
 667                 if (*p == a1)
 668                         v0 = a0 + (p - (char *)Ra0);
 669         } while (*p++ != '\0');
 670
 671         pc0 = ra;
 672 }
 673
 674 void psxBios_strchr() { // 0x1e
 675         psxBios_index();
 676 }
 677
 678 void psxBios_strrchr() { // 0x1f
 679         psxBios_rindex();
 680 }
 681
 682 void psxBios_strpbrk() { // 0x20
 683         char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
 684
 685         while ((c = *p1++) != '\0') {
 686                 for (scanp = p2; (sc = *scanp++) != '\0';) {
 687                         if (sc == c) {
 688                                 v0 = a0 + (p1 - 1 - (char *)Ra0);
 689                                 pc0 = ra;
 690                                 return;
 691                         }
 692                 }
 693         }
 694
 695         // BUG: return a0 instead of NULL if not found
 696         v0 = a0; pc0 = ra;
 697 }
 698
 699 void psxBios_strspn() { // 0x21
 700         char *p1, *p2;
 701
 702         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 703                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 704                 if (*p2 == '\0') break;
 705         }
 706
 707         v0 = p1 - (char *)Ra0; pc0 = ra;
 708 }
 709
 710 void psxBios_strcspn() { // 0x22
 711         char *p1, *p2;
 712
 713         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 714                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 715                 if (*p2 != '\0') break;
 716         }
 717
 718         v0 = p1 - (char *)Ra0; pc0 = ra;
 719 }
 720
 721 void psxBios_strtok() { // 0x23
 722         char *pcA0 = (char *)Ra0;
 723         char *pcRet = strtok(pcA0, (char *)Ra1);
 724         if (pcRet)
 725                 v0 = a0 + pcRet - pcA0;
 726         else
 727                 v0 = 0;
 728         pc0 = ra;
 729 }
 730
 731 void psxBios_strstr() { // 0x24
 732         char *p = (char *)Ra0, *p1, *p2;
 733
 734         while (*p != '\0') {
 735                 p1 = p;
 736                 p2 = (char *)Ra1;
 737
 738                 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
 739                         p1++; p2++;
 740                 }
 741
 742                 if (*p2 == '\0') {
 743                         v0 = a0 + (p - (char *)Ra0);
 744                         pc0 = ra;
 745                         return;
 746                 }
 747
 748                 p++;
 749         }
 750
 751         v0 = 0; pc0 = ra;
 752 }
 753
 754 void psxBios_toupper() { // 0x25
 755         v0 = (s8)(a0 & 0xff);
 756         if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
 757         pc0 = ra;
 758 }
 759
 760 void psxBios_tolower() { // 0x26
 761         v0 = (s8)(a0 & 0xff);
 762         if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
 763         pc0 = ra;
 764 }
 765
 766 void psxBios_bcopy() { // 0x27
 767         char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
 768         v0 = a0;
 769         if (a0 == 0 || a2 > 0x7FFFFFFF)
 770         {
 771                 pc0 = ra;
 772                 return;
 773         }
 774         while ((s32)a2-- > 0) *p1++ = *p2++;
 775         a2 = 0;
 776         pc0 = ra;
 777 }
 778
 779 void psxBios_bzero() { // 0x28
 780         char *p = (char *)Ra0;
 781         v0 = a0;
 782         /* Same as memset here (See memset below) */
 783         if (a1 > 0x7FFFFFFF || a1 == 0)
 784         {
 785                 v0 = 0;
 786                 pc0 = ra;
 787                 return;
 788         }
 789         else if (a0 == 0)
 790         {
 791                 pc0 = ra;
 792                 return;
 793         }
 794         while ((s32)a1-- > 0) *p++ = '\0';
 795         a1 = 0;
 796         pc0 = ra;
 797 }
 798
 799 void psxBios_bcmp() { // 0x29
 800         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 801
 802         if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
 803
 804         while ((s32)a2-- > 0) {
 805                 if (*p1++ != *p2++) {
 806                         v0 = *p1 - *p2; // BUG: compare the NEXT byte
 807                         pc0 = ra;
 808                         return;
 809                 }
 810         }
 811
 812         v0 = 0; pc0 = ra;
 813 }
 814
 815 void psxBios_memcpy() { // 0x2a
 816         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 817         s32 n=0;
 818         v0 = a0;
 819         if (a0 == 0 || a2 > 0x7FFFFFFF)
 820         {
 821                 pc0 = ra;
 822                 return;
 823         }
 824         while ((s32)a2-- > 0) {
 825                 n++;
 826                 *p1++ = *p2++;
 827         }
 828         a2 = 0;
 829         pc0 = ra;
 830 }
 831
 832 void psxBios_memset() { // 0x2b
 833         char *p = (char *)Ra0;
 834         v0 = a0;
 835         if (a2 > 0x7FFFFFFF || a2 == 0)
 836         {
 837                 v0 = 0;
 838                 pc0 = ra;
 839                 return;
 840         }
 841         if (a0 == 0)
 842         {
 843                 pc0 = ra;
 844                 return;
 845         }
 846         while ((s32)a2-- > 0) *p++ = (char)a1;
 847         a2 = 0;
 848         v0 = a0; pc0 = ra;
 849 }
 850
 851 void psxBios_memmove() { // 0x2c
 852         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 853         v0 = a0;
 854         if (a0 == 0 || a2 > 0x7FFFFFFF)
 855         {
 856                 pc0 = ra;
 857                 return;
 858         }
 859         if (p2 <= p1 && p2 + a2 > p1) {
 860                 a2++; // BUG: copy one more byte here
 861                 p1 += a2;
 862                 p2 += a2;
 863                 while ((s32)a2-- > 0) *--p1 = *--p2;
 864         } else {
 865                 while ((s32)a2-- > 0) *p1++ = *p2++;
 866         }
 867         pc0 = ra;
 868 }
 869
 870 void psxBios_memcmp() { // 0x2d
 871         psxBios_bcmp();
 872 }
 873
 874 void psxBios_memchr() { // 0x2e
 875         char *p = (char *)Ra0;
 876
 877         while ((s32)a2-- > 0) {
 878                 if (*p++ != (s8)a1) continue;
 879                 v0 = a0 + (p - (char *)Ra0 - 1);
 880                 pc0 = ra;
 881                 return;
 882         }
 883
 884         v0 = 0; pc0 = ra;
 885 }
 886
 887 void psxBios_rand() { // 0x2f
 888         u32 s = psxMu32(0x9010) * 1103515245 + 12345;
 889         v0 = (s >> 16) & 0x7fff;
 890         psxMu32ref(0x9010) = SWAPu32(s);
 891         pc0 = ra;
 892 }
 893
 894 void psxBios_srand() { // 0x30
 895         psxMu32ref(0x9010) = SWAPu32(a0);
 896         pc0 = ra;
 897 }
 898
 899 static u32 qscmpfunc, qswidth;
 900
 901 static inline int qscmp(char *a, char *b) {
 902         u32 sa0 = a0;
 903
 904         a0 = sa0 + (a - (char *)PSXM(sa0));
 905         a1 = sa0 + (b - (char *)PSXM(sa0));
 906
 907         softCall2(qscmpfunc);
 908
 909         a0 = sa0;
 910         return (s32)v0;
 911 }
 912
 913 static inline void qexchange(char *i, char *j) {
 914         char t;
 915         int n = qswidth;
 916
 917         do {
 918                 t = *i;
 919                 *i++ = *j;
 920                 *j++ = t;
 921         } while (--n);
 922 }
 923
 924 static inline void q3exchange(char *i, char *j, char *k) {
 925         char t;
 926         int n = qswidth;
 927
 928         do {
 929                 t = *i;
 930                 *i++ = *k;
 931                 *k++ = *j;
 932                 *j++ = t;
 933         } while (--n);
 934 }
 935
 936 static void qsort_main(char *a, char *l) {
 937         char *i, *j, *lp, *hp;
 938         int c;
 939         unsigned int n;
 940
 941 start:
 942         if ((n = l - a) <= qswidth)
 943                 return;
 944         n = qswidth * (n / (2 * qswidth));
 945         hp = lp = a + n;
 946         i = a;
 947         j = l - qswidth;
 948         while (TRUE) {
 949                 if (i < lp) {
 950                         if ((c = qscmp(i, lp)) == 0) {
 951                                 qexchange(i, lp -= qswidth);
 952                                 continue;
 953                         }
 954                         if (c < 0) {
 955                                 i += qswidth;
 956                                 continue;
 957                         }
 958                 }
 959
 960 loop:
 961                 if (j > hp) {
 962                         if ((c = qscmp(hp, j)) == 0) {
 963                                 qexchange(hp += qswidth, j);
 964                                 goto loop;
 965                         }
 966                         if (c > 0) {
 967                                 if (i == lp) {
 968                                         q3exchange(i, hp += qswidth, j);
 969                                         i = lp += qswidth;
 970                                         goto loop;
 971                                 }
 972                                 qexchange(i, j);
 973                                 j -= qswidth;
 974                                 i += qswidth;
 975                                 continue;
 976                         }
 977                         j -= qswidth;
 978                         goto loop;
 979                 }
 980
 981                 if (i == lp) {
 982                         if (lp - a >= l - hp) {
 983                                 qsort_main(hp + qswidth, l);
 984                                 l = lp;
 985                         } else {
 986                                 qsort_main(a, lp);
 987                                 a = hp + qswidth;
 988                         }
 989                         goto start;
 990                 }
 991
 992                 q3exchange(j, lp -= qswidth, i);
 993                 j = hp -= qswidth;
 994         }
 995 }
 996
 997 void psxBios_qsort() { // 0x31
 998         qswidth = a2;
 999         qscmpfunc = a3;
1000         qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
1001
1002         pc0 = ra;
1003 }
1004
1005 void psxBios_malloc() { // 0x33
1006         unsigned int *chunk, *newchunk = NULL;
1007         unsigned int dsize = 0, csize, cstat;
1008         int colflag;
1009 #ifdef PSXBIOS_LOG
1010         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
1011 #endif
1012         if (!a0 || (!heap_size || !heap_addr)) {
1013                 v0 = 0;
1014                 pc0 = ra;
1015                 return;
1016         }
1017
1018         // scan through heap and combine free chunks of space
1019         chunk = heap_addr;
1020         colflag = 0;
1021         while(chunk < heap_end) {
1022                 // get size and status of actual chunk
1023                 csize = ((u32)*chunk) & 0xfffffffc;
1024                 cstat = ((u32)*chunk) & 1;
1025
1026                 // most probably broken heap descriptor
1027                 // this fixes Burning Road
1028                 if (*chunk == 0) {
1029                         newchunk = chunk;
1030                         dsize = ((uptr)heap_end - (uptr)chunk) - 4;
1031                         colflag = 1;
1032                         break;
1033                 }
1034
1035                 // it's a free chunk
1036                 if(cstat == 1) {
1037                         if(colflag == 0) {
1038                                 newchunk = chunk;
1039                                 dsize = csize;
1040                                 colflag = 1;                    // let's begin a new collection of free memory
1041                         }
1042                         else dsize += (csize+4);        // add the new size including header
1043                 }
1044                 // not a free chunk: did we start a collection ?
1045                 else {
1046                         if(colflag == 1) {                      // collection is over
1047                                 colflag = 0;
1048                                 *newchunk = SWAP32(dsize | 1);
1049                         }
1050                 }
1051
1052                 // next chunk
1053                 chunk = (u32*)((uptr)chunk + csize + 4);
1054         }
1055         // if neccessary free memory on end of heap
1056         if (colflag == 1)
1057                 *newchunk = SWAP32(dsize | 1);
1058
1059         chunk = heap_addr;
1060         csize = ((u32)*chunk) & 0xfffffffc;
1061         cstat = ((u32)*chunk) & 1;
1062         dsize = (a0 + 3) & 0xfffffffc;
1063
1064         // exit on uninitialized heap
1065         if (chunk == NULL) {
1066                 printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
1067                 v0 = 0;
1068                 pc0 = ra;
1069                 return;
1070         }
1071
1072         // search an unused chunk that is big enough until the end of the heap
1073         while ((dsize > csize || cstat==0) && chunk < heap_end ) {
1074                 chunk = (u32*)((uptr)chunk + csize + 4);
1075
1076                         // catch out of memory
1077                         if(chunk >= heap_end) {
1078                                 printf("malloc %x,%x: Out of memory error!\n",
1079                                         v0, a0);
1080                                 v0 = 0; pc0 = ra;
1081                                 return;
1082                         }
1083
1084                 csize = ((u32)*chunk) & 0xfffffffc;
1085                 cstat = ((u32)*chunk) & 1;
1086         }
1087
1088         // allocate memory
1089         if(dsize == csize) {
1090                 // chunk has same size
1091                 *chunk &= 0xfffffffc;
1092         } else if (dsize > csize) {
1093                 v0 = 0; pc0 = ra;
1094                 return;
1095         } else {
1096                 // split free chunk
1097                 *chunk = SWAP32(dsize);
1098                 newchunk = (u32*)((uptr)chunk + dsize + 4);
1099                 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
1100         }
1101
1102         // return pointer to allocated memory
1103         v0 = ((uptr)chunk - (uptr)psxM) + 4;
1104         v0|= 0x80000000;
1105         //printf ("malloc %x,%x\n", v0, a0);
1106         pc0 = ra;
1107 }
1108
1109 void psxBios_free() { // 0x34
1110
1111 #ifdef PSXBIOS_LOG
1112         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1113 #endif
1114
1115         SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1116
1117         *(u32*)(Ra0-4) |= 1;    // set chunk to free
1118         pc0 = ra;
1119 }
1120
1121 void psxBios_calloc() { // 0x37
1122         void *pv0;
1123 #ifdef PSXBIOS_LOG
1124         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1125 #endif
1126
1127         a0 = a0 * a1;
1128         psxBios_malloc();
1129         pv0 = Rv0;
1130         if (pv0)
1131                 memset(pv0, 0, a0);
1132 }
1133
1134 void psxBios_realloc() { // 0x38
1135         u32 block = a0;
1136         u32 size = a1;
1137 #ifdef PSXBIOS_LOG
1138         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1139 #endif
1140
1141         a0 = block;
1142         /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1143         if (block == 0)
1144         {
1145                 psxBios_malloc();
1146         }
1147         /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1148         else if (size == 0)
1149         {
1150                 psxBios_free();
1151         }
1152         /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1153         /* Note that it is not quite implemented this way here. */
1154         else
1155         {
1156                 psxBios_free();
1157                 a0 = size;
1158                 psxBios_malloc();
1159         }
1160 }
1161
1162
1163 /* InitHeap(void *block , int n) */
1164 void psxBios_InitHeap() { // 0x39
1165         unsigned int size;
1166
1167 #ifdef PSXBIOS_LOG
1168         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1169 #endif
1170
1171         if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1172         else size = a1;
1173
1174         size &= 0xfffffffc;
1175
1176         heap_addr = (u32 *)Ra0;
1177         heap_end = (u32 *)((u8 *)heap_addr + size);
1178         *heap_addr = SWAP32(size | 1);
1179
1180         SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
1181
1182         pc0 = ra;
1183 }
1184
1185 void psxBios_getchar() { //0x3b
1186         v0 = getchar(); pc0 = ra;
1187 }
1188
1189 void psxBios_printf() { // 0x3f
1190         char tmp[1024];
1191         char tmp2[1024];
1192         u32 save[4];
1193         char *ptmp = tmp;
1194         int n=1, i=0, j;
1195         void *psp;
1196
1197         psp = PSXM(sp);
1198         if (psp) {
1199                 memcpy(save, psp, 4 * 4);
1200                 psxMu32ref(sp) = SWAP32((u32)a0);
1201                 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1202                 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1203                 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1204         }
1205
1206         while (Ra0[i]) {
1207                 switch (Ra0[i]) {
1208                         case '%':
1209                                 j = 0;
1210                                 tmp2[j++] = '%';
1211 _start:
1212                                 switch (Ra0[++i]) {
1213                                         case '.':
1214                                         case 'l':
1215                                                 tmp2[j++] = Ra0[i]; goto _start;
1216                                         default:
1217                                                 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1218                                                         tmp2[j++] = Ra0[i];
1219                                                         goto _start;
1220                                                 }
1221                                                 break;
1222                                 }
1223                                 tmp2[j++] = Ra0[i];
1224                                 tmp2[j] = 0;
1225
1226                                 switch (Ra0[i]) {
1227                                         case 'f': case 'F':
1228                                                 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1229                                         case 'a': case 'A':
1230                                         case 'e': case 'E':
1231                                         case 'g': case 'G':
1232                                                 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1233                                         case 'p':
1234                                         case 'i': case 'u':
1235                                         case 'd': case 'D':
1236                                         case 'o': case 'O':
1237                                         case 'x': case 'X':
1238                                                 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1239                                         case 'c':
1240                                                 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1241                                         case 's':
1242                                                 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1243                                         case '%':
1244                                                 *ptmp++ = Ra0[i]; break;
1245                                 }
1246                                 i++;
1247                                 break;
1248                         default:
1249                                 *ptmp++ = Ra0[i++];
1250                 }
1251         }
1252         *ptmp = 0;
1253
1254         if (psp)
1255                 memcpy(psp, save, 4 * 4);
1256
1257         SysPrintf("%s", tmp);
1258
1259         pc0 = ra;
1260 }
1261
1262 void psxBios_format() { // 0x41
1263         if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1264         {
1265                 CreateMcd(Config.Mcd1);
1266                 LoadMcd(1, Config.Mcd1);
1267                 v0 = 1;
1268         }
1269         else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1270         {
1271                 CreateMcd(Config.Mcd2);
1272                 LoadMcd(2, Config.Mcd2);
1273                 v0 = 1;
1274         }
1275         else
1276         {
1277                 v0 = 0;
1278         }
1279         pc0 = ra;
1280 }
1281
1282 /*
1283  *      long Load(char *name, struct EXEC *header);
1284  */
1285
1286 void psxBios_Load() { // 0x42
1287         EXE_HEADER eheader;
1288         void *pa1;
1289
1290 #ifdef PSXBIOS_LOG
1291         PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1292 #endif
1293
1294         pa1 = Ra1;
1295         if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1296                 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
1297                 v0 = 1;
1298         } else v0 = 0;
1299
1300         pc0 = ra;
1301 }
1302
1303 /*
1304  *      int Exec(struct EXEC *header , int argc , char **argv);
1305  */
1306
1307 void psxBios_Exec() { // 43
1308         EXEC *header = (EXEC*)Ra0;
1309         u32 tmp;
1310
1311 #ifdef PSXBIOS_LOG
1312         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1313 #endif
1314
1315         header->_sp = sp;
1316         header->_fp = fp;
1317         header->_sp = sp;
1318         header->_gp = gp;
1319         header->ret = ra;
1320         header->base = s0;
1321
1322         if (header->S_addr != 0) {
1323                 tmp = header->S_addr + header->s_size;
1324                 sp = tmp;
1325                 fp = sp;
1326         }
1327
1328         gp = header->gp0;
1329
1330         s0 = a0;
1331
1332         a0 = a1;
1333         a1 = a2;
1334
1335         ra = 0x8000;
1336         pc0 = header->_pc0;
1337 }
1338
1339 void psxBios_FlushCache() { // 44
1340 #ifdef PSXBIOS_LOG
1341         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1342 #endif
1343
1344         pc0 = ra;
1345 }
1346
1347 void psxBios_GPU_dw() { // 0x46
1348         int size;
1349         s32 *ptr;
1350
1351 #ifdef PSXBIOS_LOG
1352         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1353 #endif
1354
1355         GPU_writeData(0xa0000000);
1356         GPU_writeData((a1<<16)|(a0&0xffff));
1357         GPU_writeData((a3<<16)|(a2&0xffff));
1358         size = (a2*a3+1)/2;
1359         ptr = (s32*)PSXM(Rsp[4]);  //that is correct?
1360         do {
1361                 GPU_writeData(SWAP32(*ptr));
1362                 ptr++;
1363         } while(--size);
1364
1365         pc0 = ra;
1366 }
1367
1368 void psxBios_mem2vram() { // 0x47
1369         int size;
1370
1371         GPU_writeData(0xa0000000);
1372         GPU_writeData((a1<<16)|(a0&0xffff));
1373         GPU_writeData((a3<<16)|(a2&0xffff));
1374         size = (a2*a3+1)/2;
1375         GPU_writeStatus(0x04000002);
1376         psxHwWrite32(0x1f8010f4,0);
1377         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1378         psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1379         psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1380         psxHwWrite32(0x1f8010a8,0x01000201);
1381
1382         pc0 = ra;
1383 }
1384
1385 void psxBios_SendGPU() { // 0x48
1386         GPU_writeStatus(a0);
1387         gpuSyncPluginSR();
1388         pc0 = ra;
1389 }
1390
1391 void psxBios_GPU_cw() { // 0x49
1392         GPU_writeData(a0);
1393         pc0 = ra;
1394 }
1395
1396 void psxBios_GPU_cwb() { // 0x4a
1397         s32 *ptr = (s32*)Ra0;
1398         int size = a1;
1399         while(size--) {
1400                 GPU_writeData(SWAP32(*ptr));
1401                 ptr++;
1402         }
1403
1404         pc0 = ra;
1405 }
1406
1407 void psxBios_GPU_SendPackets() { //4b:
1408         GPU_writeStatus(0x04000002);
1409         psxHwWrite32(0x1f8010f4,0);
1410         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1411         psxHwWrite32(0x1f8010a0,a0);
1412         psxHwWrite32(0x1f8010a4,0);
1413         psxHwWrite32(0x1f8010a8,0x010000401);
1414         pc0 = ra;
1415 }
1416
1417 void psxBios_sys_a0_4c() { // 0x4c GPU relate
1418         psxHwWrite32(0x1f8010a8,0x00000401);
1419         GPU_writeData(0x0400000);
1420         GPU_writeData(0x0200000);
1421         GPU_writeData(0x0100000);
1422         v0 = 0x1f801814;
1423         pc0 = ra;
1424 }
1425
1426 void psxBios_GPU_GetGPUStatus() { // 0x4d
1427         v0 = GPU_readStatus();
1428         pc0 = ra;
1429 }
1430
1431 #undef s_addr
1432
1433 void psxBios_LoadExec() { // 51
1434         EXEC *header = (EXEC*)PSXM(0xf000);
1435         u32 s_addr, s_size;
1436
1437 #ifdef PSXBIOS_LOG
1438         PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1439 #endif
1440         s_addr = a1; s_size = a2;
1441
1442         a1 = 0xf000;
1443         psxBios_Load();
1444
1445         header->S_addr = s_addr;
1446         header->s_size = s_size;
1447
1448         a0 = 0xf000; a1 = 0; a2 = 0;
1449         psxBios_Exec();
1450 }
1451
1452 void psxBios__bu_init() { // 70
1453 #ifdef PSXBIOS_LOG
1454         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1455 #endif
1456
1457         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1458         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1459
1460         pc0 = ra;
1461 }
1462
1463 void psxBios__96_init() { // 71
1464 #ifdef PSXBIOS_LOG
1465         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1466 #endif
1467
1468         pc0 = ra;
1469 }
1470
1471 void psxBios__96_remove() { // 72
1472 #ifdef PSXBIOS_LOG
1473         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1474 #endif
1475
1476         pc0 = ra;
1477 }
1478
1479 void psxBios_SetMem() { // 9f
1480         u32 new = psxHu32(0x1060);
1481
1482 #ifdef PSXBIOS_LOG
1483         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1484 #endif
1485
1486         switch(a0) {
1487                 case 2:
1488                         psxHu32ref(0x1060) = SWAP32(new);
1489                         psxMu32ref(0x060) = a0;
1490                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1491                         break;
1492
1493                 case 8:
1494                         psxHu32ref(0x1060) = SWAP32(new | 0x300);
1495                         psxMu32ref(0x060) = a0;
1496                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1497
1498                 default:
1499                         SysPrintf("Effective memory must be 2/8 MBytes\n");
1500                 break;
1501         }
1502
1503         pc0 = ra;
1504 }
1505
1506 void psxBios__card_info() { // ab
1507 #ifdef PSXBIOS_LOG
1508         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1509 #endif
1510         u32 ret;
1511         card_active_chan = a0;
1512
1513         switch (card_active_chan)
1514         {
1515         case 0x00: case 0x01: case 0x02: case 0x03:
1516                 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1517                 break;
1518         case 0x10: case 0x11: case 0x12: case 0x13:
1519                 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1520                 break;
1521         default:
1522 #ifdef PSXBIOS_LOG
1523                 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1524 #endif
1525                 ret = 0x11;
1526                 break;
1527         }
1528
1529 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1530 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1531         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1532         DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
1533
1534         v0 = 1; pc0 = ra;
1535 }
1536
1537 void psxBios__card_load() { // ac
1538 #ifdef PSXBIOS_LOG
1539         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1540 #endif
1541
1542         card_active_chan = a0;
1543
1544 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1545         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1546
1547         v0 = 1; pc0 = ra;
1548 }
1549
1550 /* System calls B0 */
1551
1552 void psxBios_SetRCnt() { // 02
1553 #ifdef PSXBIOS_LOG
1554         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1555 #endif
1556
1557         a0&= 0x3;
1558         if (a0 != 3) {
1559                 u32 mode=0;
1560
1561                 psxRcntWtarget(a0, a1);
1562                 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1563                 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1564                 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1565                 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1566                 else         { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1567
1568                 psxRcntWmode(a0, mode);
1569         }
1570         pc0 = ra;
1571 }
1572
1573 void psxBios_GetRCnt() { // 03
1574 #ifdef PSXBIOS_LOG
1575         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1576 #endif
1577
1578         a0&= 0x3;
1579         if (a0 != 3) v0 = psxRcntRcount(a0);
1580         else v0 = 0;
1581         pc0 = ra;
1582 }
1583
1584 void psxBios_StartRCnt() { // 04
1585 #ifdef PSXBIOS_LOG
1586         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1587 #endif
1588
1589         a0&= 0x3;
1590         if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1591         else psxHu32ref(0x1074)|= SWAPu32(0x1);
1592         v0 = 1; pc0 = ra;
1593 }
1594
1595 void psxBios_StopRCnt() { // 05
1596 #ifdef PSXBIOS_LOG
1597         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1598 #endif
1599
1600         a0&= 0x3;
1601         if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1602         else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1603         pc0 = ra;
1604 }
1605
1606 void psxBios_ResetRCnt() { // 06
1607 #ifdef PSXBIOS_LOG
1608         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1609 #endif
1610
1611         a0&= 0x3;
1612         if (a0 != 3) {
1613                 psxRcntWmode(a0, 0);
1614                 psxRcntWtarget(a0, 0);
1615                 psxRcntWcount(a0, 0);
1616         }
1617         pc0 = ra;
1618 }
1619
1620
1621 /* gets ev for use with Event */
1622 #define GetEv() \
1623         ev = (a0 >> 24) & 0xf; \
1624         if (ev == 0xf) ev = 0x5; \
1625         ev*= 32; \
1626         ev+= a0&0x1f;
1627
1628 /* gets spec for use with Event */
1629 #define GetSpec() \
1630         spec = 0; \
1631         switch (a1) { \
1632                 case 0x0301: spec = 16; break; \
1633                 case 0x0302: spec = 17; break; \
1634                 default: \
1635                         for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1636                         break; \
1637         }
1638
1639 void psxBios_DeliverEvent() { // 07
1640         int ev, spec;
1641         int i;
1642
1643         GetEv();
1644         GetSpec();
1645
1646 #ifdef PSXBIOS_LOG
1647         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1648 #endif
1649
1650         DeliverEvent(ev, spec);
1651
1652         pc0 = ra;
1653 }
1654
1655 void psxBios_OpenEvent() { // 08
1656         int ev, spec;
1657         int i;
1658
1659         GetEv();
1660         GetSpec();
1661
1662 #ifdef PSXBIOS_LOG
1663         PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1664 #endif
1665
1666         Event[ev][spec].status = EvStWAIT;
1667         Event[ev][spec].mode = a2;
1668         Event[ev][spec].fhandler = a3;
1669
1670         v0 = ev | (spec << 8);
1671         pc0 = ra;
1672 }
1673
1674 void psxBios_CloseEvent() { // 09
1675         int ev, spec;
1676
1677         ev   = a0 & 0xff;
1678         spec = (a0 >> 8) & 0xff;
1679
1680 #ifdef PSXBIOS_LOG
1681         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1682 #endif
1683
1684         Event[ev][spec].status = EvStUNUSED;
1685
1686         v0 = 1; pc0 = ra;
1687 }
1688
1689 void psxBios_WaitEvent() { // 0a
1690         int ev, spec;
1691
1692         ev   = a0 & 0xff;
1693         spec = (a0 >> 8) & 0xff;
1694 #ifdef PSXBIOS_LOG
1695         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1696 #endif
1697         if (Event[ev][spec].status == EvStUNUSED)
1698         {
1699                 v0 = 0;
1700                 pc0 = ra;
1701                 return;
1702         }
1703
1704         if (Event[ev][spec].status == EvStALREADY)
1705         {
1706                 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1707                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1708                 v0 = 1;
1709                 pc0 = ra;
1710                 return;
1711         }
1712
1713         v0 = 0;
1714         pc0 = ra;
1715 }
1716
1717 void psxBios_TestEvent() { // 0b
1718         int ev, spec;
1719
1720         ev   = a0 & 0xff;
1721         spec = (a0 >> 8) & 0xff;
1722
1723         if (Event[ev][spec].status == EvStALREADY) {
1724                 Event[ev][spec].status = EvStACTIVE; v0 = 1;
1725         } else v0 = 0;
1726
1727 #ifdef PSXBIOS_LOG
1728         PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1729 #endif
1730
1731         pc0 = ra;
1732 }
1733
1734 void psxBios_EnableEvent() { // 0c
1735         int ev, spec;
1736
1737         ev   = a0 & 0xff;
1738         spec = (a0 >> 8) & 0xff;
1739
1740 #ifdef PSXBIOS_LOG
1741         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1742 #endif
1743
1744         Event[ev][spec].status = EvStACTIVE;
1745
1746         v0 = 1; pc0 = ra;
1747 }
1748
1749 void psxBios_DisableEvent() { // 0d
1750         int ev, spec;
1751
1752         ev   = a0 & 0xff;
1753         spec = (a0 >> 8) & 0xff;
1754
1755 #ifdef PSXBIOS_LOG
1756         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1757 #endif
1758
1759         Event[ev][spec].status = EvStWAIT;
1760
1761         v0 = 1; pc0 = ra;
1762 }
1763
1764 /*
1765  *      long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1766  */
1767
1768 void psxBios_OpenTh() { // 0e
1769         int th;
1770
1771         for (th=1; th<8; th++)
1772         {
1773                 if (Thread[th].status == 0) break;
1774
1775         }
1776         if (th == 8) {
1777                 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1778                 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1779 #ifdef PSXBIOS_LOG
1780                 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1781 #endif
1782                 v0 = 0xffffffff;
1783                 pc0 = ra;
1784                 return;
1785         }
1786 #ifdef PSXBIOS_LOG
1787         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1788 #endif
1789
1790         Thread[th].status = 1;
1791         Thread[th].func    = a0;
1792         Thread[th].reg[29] = a1;
1793         Thread[th].reg[28] = a2;
1794
1795         v0 = th; pc0 = ra;
1796 }
1797
1798 /*
1799  *      int CloseTh(long thread);
1800  */
1801
1802 void psxBios_CloseTh() { // 0f
1803         int th = a0 & 0xff;
1804
1805 #ifdef PSXBIOS_LOG
1806         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1807 #endif
1808
1809         if (Thread[th].status == 0) {
1810                 v0 = 0;
1811         } else {
1812                 Thread[th].status = 0;
1813                 v0 = 1;
1814         }
1815
1816         pc0 = ra;
1817 }
1818
1819 /*
1820  *      int ChangeTh(long thread);
1821  */
1822
1823 void psxBios_ChangeTh() { // 10
1824         int th = a0 & 0xff;
1825
1826 #ifdef PSXBIOS_LOG
1827 //      PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1828 #endif
1829
1830         if (Thread[th].status == 0 || CurThread == th) {
1831                 v0 = 0;
1832
1833                 pc0 = ra;
1834         } else {
1835                 v0 = 1;
1836
1837                 if (Thread[CurThread].status == 2) {
1838                         Thread[CurThread].status = 1;
1839                         Thread[CurThread].func = ra;
1840                         memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1841                 }
1842
1843                 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1844                 pc0 = Thread[th].func;
1845                 Thread[th].status = 2;
1846                 CurThread = th;
1847         }
1848 }
1849
1850 void psxBios_InitPAD() { // 0x12
1851 #ifdef PSXBIOS_LOG
1852         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1853 #endif
1854
1855         pad_buf1 = (char*)Ra0;
1856         pad_buf1len = a1;
1857         pad_buf2 = (char*)Ra2;
1858         pad_buf2len = a3;
1859
1860         v0 = 1; pc0 = ra;
1861 }
1862
1863 void psxBios_StartPAD() { // 13
1864 #ifdef PSXBIOS_LOG
1865         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1866 #endif
1867
1868         psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1869         psxRegs.CP0.n.Status |= 0x401;
1870         pc0 = ra;
1871 }
1872
1873 void psxBios_StopPAD() { // 14
1874 #ifdef PSXBIOS_LOG
1875         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1876 #endif
1877         if (pad_buf == 0){
1878         pad_buf1 = NULL;
1879         pad_buf2 = NULL;
1880         }
1881         pc0 = ra;
1882 }
1883
1884 void psxBios_PAD_init() { // 15
1885 #ifdef PSXBIOS_LOG
1886         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1887 #endif
1888         if (!(a0 == 0x20000000 || a0 == 0x20000001))
1889         {
1890                 v0 = 0;
1891                 pc0 = ra;
1892                 return;
1893         }
1894         psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1895         pad_buf = (int *)Ra1;
1896         *pad_buf = -1;
1897         psxRegs.CP0.n.Status |= 0x401;
1898         v0 = 2;
1899         pc0 = ra;
1900 }
1901
1902 void psxBios_PAD_dr() { // 16
1903 #ifdef PSXBIOS_LOG
1904         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1905 #endif
1906
1907         v0 = -1; pc0 = ra;
1908 }
1909
1910 void psxBios_ReturnFromException() { // 17
1911         LoadRegs();
1912
1913         pc0 = psxRegs.CP0.n.EPC;
1914         if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1915
1916         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1917                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1918 }
1919
1920 void psxBios_ResetEntryInt() { // 18
1921 #ifdef PSXBIOS_LOG
1922         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1923 #endif
1924
1925         jmp_int = NULL;
1926         pc0 = ra;
1927 }
1928
1929 void psxBios_HookEntryInt() { // 19
1930 #ifdef PSXBIOS_LOG
1931         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1932 #endif
1933
1934         jmp_int = (u32*)Ra0;
1935         pc0 = ra;
1936 }
1937
1938 void psxBios_UnDeliverEvent() { // 0x20
1939         int ev, spec;
1940         int i;
1941
1942         GetEv();
1943         GetSpec();
1944
1945 #ifdef PSXBIOS_LOG
1946         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1947 #endif
1948
1949         if (Event[ev][spec].status == EvStALREADY &&
1950                 Event[ev][spec].mode == EvMdNOINTR)
1951                 Event[ev][spec].status = EvStACTIVE;
1952
1953         pc0 = ra;
1954 }
1955
1956 char ffile[64], *pfile;
1957 int nfile;
1958 static void buopen(int mcd, u8 *ptr, u8 *cfg)
1959 {
1960         int i;
1961         u8 *fptr = ptr;
1962
1963         strcpy(FDesc[1 + mcd].name, Ra0+5);
1964         FDesc[1 + mcd].offset = 0;
1965         FDesc[1 + mcd].mode   = a1;
1966
1967         for (i=1; i<16; i++) {
1968                 fptr += 128;
1969                 if ((*fptr & 0xF0) != 0x50) continue;
1970                 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
1971                 FDesc[1 + mcd].mcfile = i;
1972                 SysPrintf("open %s\n", fptr+0xa);
1973                 v0 = 1 + mcd;
1974                 break;
1975         }
1976         if (a1 & 0x200 && v0 == -1) { /* FCREAT */
1977                 fptr = ptr;
1978                 for (i=1; i<16; i++) {
1979                         int j, xor, nblk = a1 >> 16;
1980                         u8 *pptr, *fptr2;
1981
1982                         fptr += 128;
1983                         if ((*fptr & 0xF0) != 0xa0) continue;
1984
1985                         FDesc[1 + mcd].mcfile = i;
1986                         fptr[0] = 0x51;
1987                         fptr[4] = 0x00;
1988                         fptr[5] = 0x20 * nblk;
1989                         fptr[6] = 0x00;
1990                         fptr[7] = 0x00;
1991                         strcpy(fptr+0xa, FDesc[1 + mcd].name);
1992                         pptr = fptr2 = fptr;
1993                         for(j=2; j<=nblk; j++) {
1994                                 int k;
1995                                 for(i++; i<16; i++) {
1996                                         fptr2 += 128;
1997
1998                                         memset(fptr2, 0, 128);
1999                                         fptr2[0] = j < nblk ? 0x52 : 0x53;
2000                                         pptr[8] = i - 1;
2001                                         pptr[9] = 0;
2002                                         for (k=0, xor=0; k<127; k++) xor^= pptr[k];
2003                                         pptr[127] = xor;
2004                                         pptr = fptr2;
2005                                         break;
2006                                 }
2007                                 /* shouldn't this return ENOSPC if i == 16? */
2008                         }
2009                         pptr[8] = pptr[9] = 0xff;
2010                         for (j=0, xor=0; j<127; j++) xor^= pptr[j];
2011                         pptr[127] = xor;
2012                         SysPrintf("openC %s %d\n", ptr, nblk);
2013                         v0 = 1 + mcd;
2014                         /* just go ahead and resave them all */
2015                         SaveMcd(cfg, ptr, 128, 128 * 15);
2016                         break;
2017                 }
2018                 /* shouldn't this return ENOSPC if i == 16? */
2019         }
2020 }
2021
2022 /*
2023  *      int open(char *name , int mode);
2024  */
2025
2026 void psxBios_open() { // 0x32
2027         int i;
2028         char *ptr;
2029         void *pa0 = Ra0;
2030
2031 #ifdef PSXBIOS_LOG
2032         PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
2033 #endif
2034
2035         v0 = -1;
2036
2037         if (pa0) {
2038                 if (!strncmp(pa0, "bu00", 4)) {
2039                         buopen(1, Mcd1Data, Config.Mcd1);
2040                 }
2041
2042                 if (!strncmp(pa0, "bu10", 4)) {
2043                         buopen(2, Mcd2Data, Config.Mcd2);
2044                 }
2045         }
2046
2047         pc0 = ra;
2048 }
2049
2050 /*
2051  *      int lseek(int fd , int offset , int whence);
2052  */
2053
2054 void psxBios_lseek() { // 0x33
2055 #ifdef PSXBIOS_LOG
2056         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2057 #endif
2058
2059         switch (a2) {
2060                 case 0: // SEEK_SET
2061                         FDesc[a0].offset = a1;
2062                         v0 = a1;
2063 //                      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2064 //                      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2065                         break;
2066
2067                 case 1: // SEEK_CUR
2068                         FDesc[a0].offset+= a1;
2069                         v0 = FDesc[a0].offset;
2070                         break;
2071         }
2072
2073         pc0 = ra;
2074 }
2075
2076
2077 /*
2078  *      int read(int fd , void *buf , int nbytes);
2079  */
2080
2081 void psxBios_read() { // 0x34
2082         char *ptr;
2083         void *pa1 = Ra1;
2084
2085 #ifdef PSXBIOS_LOG
2086         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2087 #endif
2088
2089         v0 = -1;
2090
2091         if (pa1) {
2092                 switch (a0) {
2093                         case 2: buread(pa1, 1, a2); break;
2094                         case 3: buread(pa1, 2, a2); break;
2095                 }
2096         }
2097
2098         pc0 = ra;
2099 }
2100
2101 /*
2102  *      int write(int fd , void *buf , int nbytes);
2103  */
2104
2105 void psxBios_write() { // 0x35/0x03
2106         char *ptr;
2107         void *pa1 = Ra1;
2108
2109 #ifdef PSXBIOS_LOG
2110         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2111 #endif
2112
2113         v0 = -1;
2114         if (!pa1) {
2115                 pc0 = ra;
2116                 return;
2117         }
2118
2119         if (a0 == 1) { // stdout
2120                 char *ptr = pa1;
2121
2122                 v0 = a2;
2123                 while (a2 > 0) {
2124                         SysPrintf("%c", *ptr++); a2--;
2125                 }
2126                 pc0 = ra; return;
2127         }
2128
2129         switch (a0) {
2130                 case 2: buwrite(pa1, 1, a2); break;
2131                 case 3: buwrite(pa1, 2, a2); break;
2132         }
2133
2134         pc0 = ra;
2135 }
2136
2137 /*
2138  *      int close(int fd);
2139  */
2140
2141 void psxBios_close() { // 0x36
2142 #ifdef PSXBIOS_LOG
2143         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2144 #endif
2145
2146         v0 = a0;
2147         pc0 = ra;
2148 }
2149
2150 void psxBios_putchar() { // 3d
2151         SysPrintf("%c", (char)a0);
2152         pc0 = ra;
2153 }
2154
2155 void psxBios_puts() { // 3e/3f
2156         SysPrintf("%s", Ra0);
2157         pc0 = ra;
2158 }
2159
2160 char ffile[64], *pfile;
2161 int nfile;
2162
2163 #define bufile(mcd) { \
2164         while (nfile < 16) { \
2165                 int match=1; \
2166  \
2167                 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
2168                 nfile++; \
2169                 if ((*ptr & 0xF0) != 0x50) continue; \
2170                 /* Bug link files show up as free block. */ \
2171                 if (!ptr[0xa]) continue; \
2172                 ptr+= 0xa; \
2173                 if (pfile[0] == 0) { \
2174                         strncpy(dir->name, ptr, sizeof(dir->name)); \
2175                         dir->name[sizeof(dir->name) - 1] = '\0'; \
2176                 } else for (i=0; i<20; i++) { \
2177                         if (pfile[i] == ptr[i]) { \
2178                                                                 dir->name[i] = ptr[i]; continue; } \
2179                         if (pfile[i] == '?') { \
2180                                 dir->name[i] = ptr[i]; continue; } \
2181                         if (pfile[i] == '*') { \
2182                                 strcpy(dir->name+i, ptr+i); break; } \
2183                         match = 0; break; \
2184                 } \
2185                 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
2186                 if (match == 0) { continue; } \
2187                 dir->size = 8192; \
2188                 v0 = _dir; \
2189                 break; \
2190         } \
2191 }
2192
2193 /*
2194  *      struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2195  */
2196
2197 void psxBios_firstfile() { // 42
2198         struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
2199         void *pa0 = Ra0;
2200         u32 _dir = a1;
2201         char *ptr;
2202         int i;
2203
2204 #ifdef PSXBIOS_LOG
2205         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2206 #endif
2207
2208         v0 = 0;
2209
2210         if (pa0) {
2211                 strcpy(ffile, pa0);
2212                 pfile = ffile+5;
2213                 nfile = 1;
2214                 if (!strncmp(pa0, "bu00", 4)) {
2215                         // firstfile() calls _card_read() internally, so deliver it's event
2216                         DeliverEvent(0x11, 0x2);
2217                         bufile(1);
2218                 } else if (!strncmp(pa0, "bu10", 4)) {
2219                         // firstfile() calls _card_read() internally, so deliver it's event
2220                         DeliverEvent(0x11, 0x2);
2221                         bufile(2);
2222                 }
2223         }
2224
2225         pc0 = ra;
2226 }
2227
2228 /*
2229  *      struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2230  */
2231
2232 void psxBios_nextfile() { // 43
2233         struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2234         u32 _dir = a0;
2235         char *ptr;
2236         int i;
2237
2238 #ifdef PSXBIOS_LOG
2239         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2240 #endif
2241
2242         v0 = 0;
2243
2244         if (!strncmp(ffile, "bu00", 4)) {
2245                 bufile(1);
2246         }
2247
2248         if (!strncmp(ffile, "bu10", 4)) {
2249                 bufile(2);
2250         }
2251
2252         pc0 = ra;
2253 }
2254
2255 #define burename(mcd) { \
2256         for (i=1; i<16; i++) { \
2257                 int namelen, j, xor = 0; \
2258                 ptr = Mcd##mcd##Data + 128 * i; \
2259                 if ((*ptr & 0xF0) != 0x50) continue; \
2260                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2261                 namelen = strlen(Ra1+5); \
2262                 memcpy(ptr+0xa, Ra1+5, namelen); \
2263                 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2264                 for (j=0; j<127; j++) xor^= ptr[j]; \
2265                 ptr[127] = xor; \
2266                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2267                 v0 = 1; \
2268                 break; \
2269         } \
2270 }
2271
2272 /*
2273  *      int rename(char *old, char *new);
2274  */
2275
2276 void psxBios_rename() { // 44
2277         void *pa0 = Ra0;
2278         void *pa1 = Ra1;
2279         char *ptr;
2280         int i;
2281
2282 #ifdef PSXBIOS_LOG
2283         PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2284 #endif
2285
2286         v0 = 0;
2287
2288         if (pa0 && pa1) {
2289                 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2290                         burename(1);
2291                 }
2292
2293                 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2294                         burename(2);
2295                 }
2296         }
2297
2298         pc0 = ra;
2299 }
2300
2301
2302 #define budelete(mcd) { \
2303         for (i=1; i<16; i++) { \
2304                 ptr = Mcd##mcd##Data + 128 * i; \
2305                 if ((*ptr & 0xF0) != 0x50) continue; \
2306                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2307                 *ptr = (*ptr & 0xf) | 0xA0; \
2308                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2309                 SysPrintf("delete %s\n", ptr+0xa); \
2310                 v0 = 1; \
2311                 break; \
2312         } \
2313 }
2314
2315 /*
2316  *      int delete(char *name);
2317  */
2318
2319 void psxBios_delete() { // 45
2320         void *pa0 = Ra0;
2321         char *ptr;
2322         int i;
2323
2324 #ifdef PSXBIOS_LOG
2325         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2326 #endif
2327
2328         v0 = 0;
2329
2330         if (pa0) {
2331                 if (!strncmp(pa0, "bu00", 4)) {
2332                         budelete(1);
2333                 }
2334
2335                 if (!strncmp(pa0, "bu10", 4)) {
2336                         budelete(2);
2337                 }
2338         }
2339
2340         pc0 = ra;
2341 }
2342
2343 void psxBios_InitCARD() { // 4a
2344 #ifdef PSXBIOS_LOG
2345         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2346 #endif
2347
2348         CardState = 0;
2349
2350         pc0 = ra;
2351 }
2352
2353 void psxBios_StartCARD() { // 4b
2354 #ifdef PSXBIOS_LOG
2355         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2356 #endif
2357
2358         if (CardState == 0) CardState = 1;
2359
2360         pc0 = ra;
2361 }
2362
2363 void psxBios_StopCARD() { // 4c
2364 #ifdef PSXBIOS_LOG
2365         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2366 #endif
2367
2368         if (CardState == 1) CardState = 0;
2369
2370         pc0 = ra;
2371 }
2372
2373 void psxBios__card_write() { // 0x4e
2374         void *pa2 = Ra2;
2375         int port;
2376
2377 #ifdef PSXBIOS_LOG
2378         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2379 #endif
2380         /* Function also accepts sector 400h (a bug) */
2381         if (!(a1 <= 0x400))
2382         {
2383                 /* Invalid sectors */
2384                 v0 = 0; pc0 = ra;
2385                 return;
2386         }
2387         card_active_chan = a0;
2388         port = a0 >> 4;
2389
2390         if (pa2) {
2391                 if (port == 0) {
2392                         memcpy(Mcd1Data + a1 * 128, pa2, 128);
2393                         SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2394                 } else {
2395                         memcpy(Mcd2Data + a1 * 128, pa2, 128);
2396                         SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2397                 }
2398         }
2399
2400         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2401 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2402
2403         v0 = 1; pc0 = ra;
2404 }
2405
2406 void psxBios__card_read() { // 0x4f
2407         void *pa2 = Ra2;
2408         int port;
2409
2410 #ifdef PSXBIOS_LOG
2411         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2412 #endif
2413         /* Function also accepts sector 400h (a bug) */
2414         if (!(a1 <= 0x400))
2415         {
2416                 /* Invalid sectors */
2417                 v0 = 0; pc0 = ra;
2418                 return;
2419         }
2420         card_active_chan = a0;
2421         port = a0 >> 4;
2422
2423         if (pa2) {
2424                 if (port == 0) {
2425                         memcpy(pa2, Mcd1Data + a1 * 128, 128);
2426                 } else {
2427                         memcpy(pa2, Mcd2Data + a1 * 128, 128);
2428                 }
2429         }
2430
2431         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2432 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2433
2434         v0 = 1; pc0 = ra;
2435 }
2436
2437 void psxBios__new_card() { // 0x50
2438 #ifdef PSXBIOS_LOG
2439         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2440 #endif
2441
2442         pc0 = ra;
2443 }
2444
2445 /* According to a user, this allows Final Fantasy Tactics to save/load properly */
2446 void psxBios__get_error(void) // 55
2447 {
2448         v0 = 0;
2449         pc0 = ra;
2450 }
2451
2452 void psxBios_Krom2RawAdd() { // 0x51
2453         int i = 0;
2454
2455         const u32 table_8140[][2] = {
2456                 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2457                 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2458                 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2459                 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2460                 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2461                 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2462                 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2463                 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2464                 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2465                 {0xffff, 0}
2466         };
2467
2468         const u32 table_889f[][2] = {
2469                 {0x889f, 0x3d68},  {0x8900, 0x40ec},  {0x897f, 0x4fb0},  {0x8a00, 0x56f4},
2470                 {0x8a7f, 0x65b8},  {0x8b00, 0x6cfc},  {0x8b7f, 0x7bc0},  {0x8c00, 0x8304},
2471                 {0x8c7f, 0x91c8},  {0x8d00, 0x990c},  {0x8d7f, 0xa7d0},  {0x8e00, 0xaf14},
2472                 {0x8e7f, 0xbdd8},  {0x8f00, 0xc51c},  {0x8f7f, 0xd3e0},  {0x9000, 0xdb24},
2473                 {0x907f, 0xe9e8},  {0x9100, 0xf12c},  {0x917f, 0xfff0},  {0x9200, 0x10734},
2474                 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2475                 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2476                 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2477                 {0xffff, 0}
2478         };
2479
2480         if (a0 >= 0x8140 && a0 <= 0x84be) {
2481                 while (table_8140[i][0] <= a0) i++;
2482                 a0 -= table_8140[i - 1][0];
2483                 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2484         } else if (a0 >= 0x889f && a0 <= 0x9872) {
2485                 while (table_889f[i][0] <= a0) i++;
2486                 a0 -= table_889f[i - 1][0];
2487                 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2488         } else {
2489                 v0 = 0xffffffff;
2490         }
2491
2492         pc0 = ra;
2493 }
2494
2495 void psxBios_GetC0Table() { // 56
2496 #ifdef PSXBIOS_LOG
2497         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2498 #endif
2499
2500         v0 = 0x674; pc0 = ra;
2501 }
2502
2503 void psxBios_GetB0Table() { // 57
2504 #ifdef PSXBIOS_LOG
2505         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2506 #endif
2507
2508         v0 = 0x874; pc0 = ra;
2509 }
2510
2511 void psxBios__card_chan() { // 0x58
2512 #ifdef PSXBIOS_LOG
2513         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2514 #endif
2515
2516         v0 = card_active_chan;
2517         pc0 = ra;
2518 }
2519
2520 void psxBios_ChangeClearPad() { // 5b
2521 #ifdef PSXBIOS_LOG
2522         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2523 #endif
2524
2525         pc0 = ra;
2526 }
2527
2528 /* System calls C0 */
2529
2530 /*
2531  * int SysEnqIntRP(int index , long *queue);
2532  */
2533
2534 void psxBios_SysEnqIntRP() { // 02
2535 #ifdef PSXBIOS_LOG
2536         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2537 #endif
2538
2539         SysIntRP[a0] = a1;
2540
2541         v0 = 0; pc0 = ra;
2542 }
2543
2544 /*
2545  * int SysDeqIntRP(int index , long *queue);
2546  */
2547
2548 void psxBios_SysDeqIntRP() { // 03
2549 #ifdef PSXBIOS_LOG
2550         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2551 #endif
2552
2553         SysIntRP[a0] = 0;
2554
2555         v0 = 0; pc0 = ra;
2556 }
2557
2558 void psxBios_ChangeClearRCnt() { // 0a
2559         u32 *ptr;
2560
2561 #ifdef PSXBIOS_LOG
2562         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2563 #endif
2564
2565         ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2566         v0 = *ptr;
2567         *ptr = a1;
2568
2569 //      psxRegs.CP0.n.Status|= 0x404;
2570         pc0 = ra;
2571 }
2572
2573 void psxBios_dummy() {
2574 #ifdef PSXBIOS_LOG
2575         PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2576 #endif
2577         pc0 = ra;
2578 }
2579
2580 void (*biosA0[256])();
2581 void (*biosB0[256])();
2582 void (*biosC0[256])();
2583
2584 #include "sjisfont.h"
2585
2586 void psxBiosInit() {
2587         u32 base, size;
2588         u32 *ptr;
2589         int i;
2590         uLongf len;
2591
2592         for(i = 0; i < 256; i++) {
2593                 biosA0[i] = NULL;
2594                 biosB0[i] = NULL;
2595                 biosC0[i] = NULL;
2596         }
2597         biosA0[0x3e] = psxBios_puts;
2598         biosA0[0x3f] = psxBios_printf;
2599
2600         biosB0[0x3d] = psxBios_putchar;
2601         biosB0[0x3f] = psxBios_puts;
2602
2603         if (!Config.HLE) return;
2604
2605         for(i = 0; i < 256; i++) {
2606                 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2607                 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2608                 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2609         }
2610
2611         biosA0[0x00] = psxBios_open;
2612         biosA0[0x01] = psxBios_lseek;
2613         biosA0[0x02] = psxBios_read;
2614         biosA0[0x03] = psxBios_write;
2615         biosA0[0x04] = psxBios_close;
2616         //biosA0[0x05] = psxBios_ioctl;
2617         //biosA0[0x06] = psxBios_exit;
2618         //biosA0[0x07] = psxBios_sys_a0_07;
2619         biosA0[0x08] = psxBios_getc;
2620         biosA0[0x09] = psxBios_putc;
2621         biosA0[0x0a] = psxBios_todigit;
2622         //biosA0[0x0b] = psxBios_atof;
2623         //biosA0[0x0c] = psxBios_strtoul;
2624         //biosA0[0x0d] = psxBios_strtol;
2625         biosA0[0x0e] = psxBios_abs;
2626         biosA0[0x0f] = psxBios_labs;
2627         biosA0[0x10] = psxBios_atoi;
2628         biosA0[0x11] = psxBios_atol;
2629         //biosA0[0x12] = psxBios_atob;
2630         biosA0[0x13] = psxBios_setjmp;
2631         biosA0[0x14] = psxBios_longjmp;
2632         biosA0[0x15] = psxBios_strcat;
2633         biosA0[0x16] = psxBios_strncat;
2634         biosA0[0x17] = psxBios_strcmp;
2635         biosA0[0x18] = psxBios_strncmp;
2636         biosA0[0x19] = psxBios_strcpy;
2637         biosA0[0x1a] = psxBios_strncpy;
2638         biosA0[0x1b] = psxBios_strlen;
2639         biosA0[0x1c] = psxBios_index;
2640         biosA0[0x1d] = psxBios_rindex;
2641         biosA0[0x1e] = psxBios_strchr;
2642         biosA0[0x1f] = psxBios_strrchr;
2643         biosA0[0x20] = psxBios_strpbrk;
2644         biosA0[0x21] = psxBios_strspn;
2645         biosA0[0x22] = psxBios_strcspn;
2646         biosA0[0x23] = psxBios_strtok;
2647         biosA0[0x24] = psxBios_strstr;
2648         biosA0[0x25] = psxBios_toupper;
2649         biosA0[0x26] = psxBios_tolower;
2650         biosA0[0x27] = psxBios_bcopy;
2651         biosA0[0x28] = psxBios_bzero;
2652         biosA0[0x29] = psxBios_bcmp;
2653         biosA0[0x2a] = psxBios_memcpy;
2654         biosA0[0x2b] = psxBios_memset;
2655         biosA0[0x2c] = psxBios_memmove;
2656         biosA0[0x2d] = psxBios_memcmp;
2657         biosA0[0x2e] = psxBios_memchr;
2658         biosA0[0x2f] = psxBios_rand;
2659         biosA0[0x30] = psxBios_srand;
2660         biosA0[0x31] = psxBios_qsort;
2661         //biosA0[0x32] = psxBios_strtod;
2662         biosA0[0x33] = psxBios_malloc;
2663         biosA0[0x34] = psxBios_free;
2664         //biosA0[0x35] = psxBios_lsearch;
2665         //biosA0[0x36] = psxBios_bsearch;
2666         biosA0[0x37] = psxBios_calloc;
2667         biosA0[0x38] = psxBios_realloc;
2668         biosA0[0x39] = psxBios_InitHeap;
2669         //biosA0[0x3a] = psxBios__exit;
2670         biosA0[0x3b] = psxBios_getchar;
2671         biosA0[0x3c] = psxBios_putchar;
2672         //biosA0[0x3d] = psxBios_gets;
2673         //biosA0[0x40] = psxBios_sys_a0_40;
2674         //biosA0[0x41] = psxBios_LoadTest;
2675         biosA0[0x42] = psxBios_Load;
2676         biosA0[0x43] = psxBios_Exec;
2677         biosA0[0x44] = psxBios_FlushCache;
2678         //biosA0[0x45] = psxBios_InstallInterruptHandler;
2679         biosA0[0x46] = psxBios_GPU_dw;
2680         biosA0[0x47] = psxBios_mem2vram;
2681         biosA0[0x48] = psxBios_SendGPU;
2682         biosA0[0x49] = psxBios_GPU_cw;
2683         biosA0[0x4a] = psxBios_GPU_cwb;
2684         biosA0[0x4b] = psxBios_GPU_SendPackets;
2685         biosA0[0x4c] = psxBios_sys_a0_4c;
2686         biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2687         //biosA0[0x4e] = psxBios_GPU_sync;
2688         //biosA0[0x4f] = psxBios_sys_a0_4f;
2689         //biosA0[0x50] = psxBios_sys_a0_50;
2690         biosA0[0x51] = psxBios_LoadExec;
2691         //biosA0[0x52] = psxBios_GetSysSp;
2692         //biosA0[0x53] = psxBios_sys_a0_53;
2693         //biosA0[0x54] = psxBios__96_init_a54;
2694         //biosA0[0x55] = psxBios__bu_init_a55;
2695         //biosA0[0x56] = psxBios__96_remove_a56;
2696         //biosA0[0x57] = psxBios_sys_a0_57;
2697         //biosA0[0x58] = psxBios_sys_a0_58;
2698         //biosA0[0x59] = psxBios_sys_a0_59;
2699         //biosA0[0x5a] = psxBios_sys_a0_5a;
2700         //biosA0[0x5b] = psxBios_dev_tty_init;
2701         //biosA0[0x5c] = psxBios_dev_tty_open;
2702         //biosA0[0x5d] = psxBios_sys_a0_5d;
2703         //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2704         //biosA0[0x5f] = psxBios_dev_cd_open;
2705         //biosA0[0x60] = psxBios_dev_cd_read;
2706         //biosA0[0x61] = psxBios_dev_cd_close;
2707         //biosA0[0x62] = psxBios_dev_cd_firstfile;
2708         //biosA0[0x63] = psxBios_dev_cd_nextfile;
2709         //biosA0[0x64] = psxBios_dev_cd_chdir;
2710         //biosA0[0x65] = psxBios_dev_card_open;
2711         //biosA0[0x66] = psxBios_dev_card_read;
2712         //biosA0[0x67] = psxBios_dev_card_write;
2713         //biosA0[0x68] = psxBios_dev_card_close;
2714         //biosA0[0x69] = psxBios_dev_card_firstfile;
2715         //biosA0[0x6a] = psxBios_dev_card_nextfile;
2716         //biosA0[0x6b] = psxBios_dev_card_erase;
2717         //biosA0[0x6c] = psxBios_dev_card_undelete;
2718         //biosA0[0x6d] = psxBios_dev_card_format;
2719         //biosA0[0x6e] = psxBios_dev_card_rename;
2720         //biosA0[0x6f] = psxBios_dev_card_6f;
2721         biosA0[0x70] = psxBios__bu_init;
2722         biosA0[0x71] = psxBios__96_init;
2723         biosA0[0x72] = psxBios__96_remove;
2724         //biosA0[0x73] = psxBios_sys_a0_73;
2725         //biosA0[0x74] = psxBios_sys_a0_74;
2726         //biosA0[0x75] = psxBios_sys_a0_75;
2727         //biosA0[0x76] = psxBios_sys_a0_76;
2728         //biosA0[0x77] = psxBios_sys_a0_77;
2729         //biosA0[0x78] = psxBios__96_CdSeekL;
2730         //biosA0[0x79] = psxBios_sys_a0_79;
2731         //biosA0[0x7a] = psxBios_sys_a0_7a;
2732         //biosA0[0x7b] = psxBios_sys_a0_7b;
2733         //biosA0[0x7c] = psxBios__96_CdGetStatus;
2734         //biosA0[0x7d] = psxBios_sys_a0_7d;
2735         //biosA0[0x7e] = psxBios__96_CdRead;
2736         //biosA0[0x7f] = psxBios_sys_a0_7f;
2737         //biosA0[0x80] = psxBios_sys_a0_80;
2738         //biosA0[0x81] = psxBios_sys_a0_81;
2739         //biosA0[0x82] = psxBios_sys_a0_82;
2740         //biosA0[0x83] = psxBios_sys_a0_83;
2741         //biosA0[0x84] = psxBios_sys_a0_84;
2742         //biosA0[0x85] = psxBios__96_CdStop;
2743         //biosA0[0x86] = psxBios_sys_a0_86;
2744         //biosA0[0x87] = psxBios_sys_a0_87;
2745         //biosA0[0x88] = psxBios_sys_a0_88;
2746         //biosA0[0x89] = psxBios_sys_a0_89;
2747         //biosA0[0x8a] = psxBios_sys_a0_8a;
2748         //biosA0[0x8b] = psxBios_sys_a0_8b;
2749         //biosA0[0x8c] = psxBios_sys_a0_8c;
2750         //biosA0[0x8d] = psxBios_sys_a0_8d;
2751         //biosA0[0x8e] = psxBios_sys_a0_8e;
2752         //biosA0[0x8f] = psxBios_sys_a0_8f;
2753         //biosA0[0x90] = psxBios_sys_a0_90;
2754         //biosA0[0x91] = psxBios_sys_a0_91;
2755         //biosA0[0x92] = psxBios_sys_a0_92;
2756         //biosA0[0x93] = psxBios_sys_a0_93;
2757         //biosA0[0x94] = psxBios_sys_a0_94;
2758         //biosA0[0x95] = psxBios_sys_a0_95;
2759         //biosA0[0x96] = psxBios_AddCDROMDevice;
2760         //biosA0[0x97] = psxBios_AddMemCardDevide;
2761         //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2762         //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2763         //biosA0[0x9a] = psxBios_sys_a0_9a;
2764         //biosA0[0x9b] = psxBios_sys_a0_9b;
2765         //biosA0[0x9c] = psxBios_SetConf;
2766         //biosA0[0x9d] = psxBios_GetConf;
2767         //biosA0[0x9e] = psxBios_sys_a0_9e;
2768         biosA0[0x9f] = psxBios_SetMem;
2769         //biosA0[0xa0] = psxBios__boot;
2770         //biosA0[0xa1] = psxBios_SystemError;
2771         //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2772         //biosA0[0xa3] = psxBios_DequeueCdIntr;
2773         //biosA0[0xa4] = psxBios_sys_a0_a4;
2774         //biosA0[0xa5] = psxBios_ReadSector;
2775         //biosA0[0xa6] = psxBios_get_cd_status;
2776         //biosA0[0xa7] = psxBios_bufs_cb_0;
2777         //biosA0[0xa8] = psxBios_bufs_cb_1;
2778         //biosA0[0xa9] = psxBios_bufs_cb_2;
2779         //biosA0[0xaa] = psxBios_bufs_cb_3;
2780         biosA0[0xab] = psxBios__card_info;
2781         biosA0[0xac] = psxBios__card_load;
2782         //biosA0[0axd] = psxBios__card_auto;
2783         //biosA0[0xae] = psxBios_bufs_cd_4;
2784         //biosA0[0xaf] = psxBios_sys_a0_af;
2785         //biosA0[0xb0] = psxBios_sys_a0_b0;
2786         //biosA0[0xb1] = psxBios_sys_a0_b1;
2787         //biosA0[0xb2] = psxBios_do_a_long_jmp
2788         //biosA0[0xb3] = psxBios_sys_a0_b3;
2789         //biosA0[0xb4] = psxBios_sub_function;
2790 //*******************B0 CALLS****************************
2791         //biosB0[0x00] = psxBios_SysMalloc;
2792         //biosB0[0x01] = psxBios_sys_b0_01;
2793         biosB0[0x02] = psxBios_SetRCnt;
2794         biosB0[0x03] = psxBios_GetRCnt;
2795         biosB0[0x04] = psxBios_StartRCnt;
2796         biosB0[0x05] = psxBios_StopRCnt;
2797         biosB0[0x06] = psxBios_ResetRCnt;
2798         biosB0[0x07] = psxBios_DeliverEvent;
2799         biosB0[0x08] = psxBios_OpenEvent;
2800         biosB0[0x09] = psxBios_CloseEvent;
2801         biosB0[0x0a] = psxBios_WaitEvent;
2802         biosB0[0x0b] = psxBios_TestEvent;
2803         biosB0[0x0c] = psxBios_EnableEvent;
2804         biosB0[0x0d] = psxBios_DisableEvent;
2805         biosB0[0x0e] = psxBios_OpenTh;
2806         biosB0[0x0f] = psxBios_CloseTh;
2807         biosB0[0x10] = psxBios_ChangeTh;
2808         //biosB0[0x11] = psxBios_psxBios_b0_11;
2809         biosB0[0x12] = psxBios_InitPAD;
2810         biosB0[0x13] = psxBios_StartPAD;
2811         biosB0[0x14] = psxBios_StopPAD;
2812         biosB0[0x15] = psxBios_PAD_init;
2813         biosB0[0x16] = psxBios_PAD_dr;
2814         biosB0[0x17] = psxBios_ReturnFromException;
2815         biosB0[0x18] = psxBios_ResetEntryInt;
2816         biosB0[0x19] = psxBios_HookEntryInt;
2817         //biosB0[0x1a] = psxBios_sys_b0_1a;
2818         //biosB0[0x1b] = psxBios_sys_b0_1b;
2819         //biosB0[0x1c] = psxBios_sys_b0_1c;
2820         //biosB0[0x1d] = psxBios_sys_b0_1d;
2821         //biosB0[0x1e] = psxBios_sys_b0_1e;
2822         //biosB0[0x1f] = psxBios_sys_b0_1f;
2823         biosB0[0x20] = psxBios_UnDeliverEvent;
2824         //biosB0[0x21] = psxBios_sys_b0_21;
2825         //biosB0[0x22] = psxBios_sys_b0_22;
2826         //biosB0[0x23] = psxBios_sys_b0_23;
2827         //biosB0[0x24] = psxBios_sys_b0_24;
2828         //biosB0[0x25] = psxBios_sys_b0_25;
2829         //biosB0[0x26] = psxBios_sys_b0_26;
2830         //biosB0[0x27] = psxBios_sys_b0_27;
2831         //biosB0[0x28] = psxBios_sys_b0_28;
2832         //biosB0[0x29] = psxBios_sys_b0_29;
2833         //biosB0[0x2a] = psxBios_sys_b0_2a;
2834         //biosB0[0x2b] = psxBios_sys_b0_2b;
2835         //biosB0[0x2c] = psxBios_sys_b0_2c;
2836         //biosB0[0x2d] = psxBios_sys_b0_2d;
2837         //biosB0[0x2e] = psxBios_sys_b0_2e;
2838         //biosB0[0x2f] = psxBios_sys_b0_2f;
2839         //biosB0[0x30] = psxBios_sys_b0_30;
2840         //biosB0[0x31] = psxBios_sys_b0_31;
2841         biosB0[0x32] = psxBios_open;
2842         biosB0[0x33] = psxBios_lseek;
2843         biosB0[0x34] = psxBios_read;
2844         biosB0[0x35] = psxBios_write;
2845         biosB0[0x36] = psxBios_close;
2846         //biosB0[0x37] = psxBios_ioctl;
2847         //biosB0[0x38] = psxBios_exit;
2848         //biosB0[0x39] = psxBios_sys_b0_39;
2849         //biosB0[0x3a] = psxBios_getc;
2850         //biosB0[0x3b] = psxBios_putc;
2851         biosB0[0x3c] = psxBios_getchar;
2852         //biosB0[0x3e] = psxBios_gets;
2853         //biosB0[0x40] = psxBios_cd;
2854         biosB0[0x41] = psxBios_format;
2855         biosB0[0x42] = psxBios_firstfile;
2856         biosB0[0x43] = psxBios_nextfile;
2857         biosB0[0x44] = psxBios_rename;
2858         biosB0[0x45] = psxBios_delete;
2859         //biosB0[0x46] = psxBios_undelete;
2860         //biosB0[0x47] = psxBios_AddDevice;
2861         //biosB0[0x48] = psxBios_RemoteDevice;
2862         //biosB0[0x49] = psxBios_PrintInstalledDevices;
2863         biosB0[0x4a] = psxBios_InitCARD;
2864         biosB0[0x4b] = psxBios_StartCARD;
2865         biosB0[0x4c] = psxBios_StopCARD;
2866         //biosB0[0x4d] = psxBios_sys_b0_4d;
2867         biosB0[0x4e] = psxBios__card_write;
2868         biosB0[0x4f] = psxBios__card_read;
2869         biosB0[0x50] = psxBios__new_card;
2870         biosB0[0x51] = psxBios_Krom2RawAdd;
2871         //biosB0[0x52] = psxBios_sys_b0_52;
2872         //biosB0[0x53] = psxBios_sys_b0_53;
2873         //biosB0[0x54] = psxBios__get_errno;
2874         biosB0[0x55] = psxBios__get_error;
2875         biosB0[0x56] = psxBios_GetC0Table;
2876         biosB0[0x57] = psxBios_GetB0Table;
2877         biosB0[0x58] = psxBios__card_chan;
2878         //biosB0[0x59] = psxBios_sys_b0_59;
2879         //biosB0[0x5a] = psxBios_sys_b0_5a;
2880         biosB0[0x5b] = psxBios_ChangeClearPad;
2881         //biosB0[0x5c] = psxBios__card_status;
2882         //biosB0[0x5d] = psxBios__card_wait;
2883 //*******************C0 CALLS****************************
2884         //biosC0[0x00] = psxBios_InitRCnt;
2885         //biosC0[0x01] = psxBios_InitException;
2886         biosC0[0x02] = psxBios_SysEnqIntRP;
2887         biosC0[0x03] = psxBios_SysDeqIntRP;
2888         //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2889         //biosC0[0x05] = psxBios_get_free_TCB_slot;
2890         //biosC0[0x06] = psxBios_ExceptionHandler;
2891         //biosC0[0x07] = psxBios_InstallExeptionHandler;
2892         //biosC0[0x08] = psxBios_SysInitMemory;
2893         //biosC0[0x09] = psxBios_SysInitKMem;
2894         biosC0[0x0a] = psxBios_ChangeClearRCnt;
2895         //biosC0[0x0b] = psxBios_SystemError;
2896         //biosC0[0x0c] = psxBios_InitDefInt;
2897         //biosC0[0x0d] = psxBios_sys_c0_0d;
2898         //biosC0[0x0e] = psxBios_sys_c0_0e;
2899         //biosC0[0x0f] = psxBios_sys_c0_0f;
2900         //biosC0[0x10] = psxBios_sys_c0_10;
2901         //biosC0[0x11] = psxBios_sys_c0_11;
2902         //biosC0[0x12] = psxBios_InstallDevices;
2903         //biosC0[0x13] = psxBios_FlushStfInOutPut;
2904         //biosC0[0x14] = psxBios_sys_c0_14;
2905         //biosC0[0x15] = psxBios__cdevinput;
2906         //biosC0[0x16] = psxBios__cdevscan;
2907         //biosC0[0x17] = psxBios__circgetc;
2908         //biosC0[0x18] = psxBios__circputc;
2909         //biosC0[0x19] = psxBios_ioabort;
2910         //biosC0[0x1a] = psxBios_sys_c0_1a
2911         //biosC0[0x1b] = psxBios_KernelRedirect;
2912         //biosC0[0x1c] = psxBios_PatchAOTable;
2913 //************** THE END ***************************************
2914 /**/
2915         base = 0x1000;
2916         size = sizeof(EvCB) * 32;
2917         Event = (void *)&psxR[base]; base += size * 6;
2918         memset(Event, 0, size * 6);
2919         HwEV = Event;
2920         EvEV = Event + 32;
2921         RcEV = Event + 32 * 2;
2922         UeEV = Event + 32 * 3;
2923         SwEV = Event + 32 * 4;
2924         ThEV = Event + 32 * 5;
2925
2926         ptr = (u32 *)&psxM[0x0874]; // b0 table
2927         ptr[0] = SWAPu32(0x4c54 - 0x884);
2928
2929         ptr = (u32 *)&psxM[0x0674]; // c0 table
2930         ptr[6] = SWAPu32(0xc80);
2931
2932         memset(SysIntRP, 0, sizeof(SysIntRP));
2933         memset(Thread, 0, sizeof(Thread));
2934         Thread[0].status = 2; // main thread
2935
2936         jmp_int = NULL;
2937         pad_buf = NULL;
2938         pad_buf1 = NULL;
2939         pad_buf2 = NULL;
2940         pad_buf1len = pad_buf2len = 0;
2941         heap_addr = NULL;
2942         heap_end = NULL;
2943         heap_size = 0;
2944         CardState = -1;
2945         CurThread = 0;
2946         memset(FDesc, 0, sizeof(FDesc));
2947
2948         psxMu32ref(0x0150) = SWAPu32(0x160);
2949         psxMu32ref(0x0154) = SWAPu32(0x320);
2950         psxMu32ref(0x0160) = SWAPu32(0x248);
2951         strcpy((char *)&psxM[0x248], "bu");
2952 /*      psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
2953         psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
2954         psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
2955         psxMu32ref(0x09e0) = SWAPu32(0x43d0);
2956         psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
2957 */
2958         // opcode HLE
2959         psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
2960         psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
2961         psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
2962         psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
2963         psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
2964         psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
2965         psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
2966         psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
2967         psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
2968         psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
2969
2970         // initial stack pointer for BIOS interrupt
2971         psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
2972
2973         // initial RNG seed
2974         psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
2975
2976         // fonts
2977         len = 0x80000 - 0x66000;
2978         uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
2979         len = 0x80000 - 0x69d68;
2980         uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
2981
2982         // memory size 2 MB
2983         psxHu32ref(0x1060) = SWAPu32(0x00000b88);
2984
2985         hleSoftCall = FALSE;
2986 }
2987
2988 void psxBiosShutdown() {
2989 }
2990
2991 #define psxBios_PADpoll(pad) { \
2992         PAD##pad##_startPoll(pad); \
2993         pad_buf##pad[0] = 0; \
2994         pad_buf##pad[1] = PAD##pad##_poll(0x42); \
2995         if (!(pad_buf##pad[1] & 0x0f)) { \
2996                 bufcount = 32; \
2997         } else { \
2998                 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
2999         } \
3000         PAD##pad##_poll(0); \
3001         i = 2; \
3002         while (bufcount--) { \
3003                 pad_buf##pad[i++] = PAD##pad##_poll(0); \
3004         } \
3005 }
3006
3007 void biosInterrupt() {
3008         int i, bufcount;
3009
3010 //      if (psxHu32(0x1070) & 0x1) { // Vsync
3011                 if (pad_buf != NULL) {
3012                         u32 *buf = (u32*)pad_buf;
3013
3014                         if (!Config.UseNet) {
3015                                 PAD1_startPoll(1);
3016                                 if (PAD1_poll(0x42) == 0x23) {
3017                                         PAD1_poll(0);
3018                                         *buf = PAD1_poll(0) << 8;
3019                                         *buf |= PAD1_poll(0);
3020                                         PAD1_poll(0);
3021                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
3022                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
3023                                 } else {
3024                                         PAD1_poll(0);
3025                                         *buf = PAD1_poll(0) << 8;
3026                                         *buf|= PAD1_poll(0);
3027                                 }
3028
3029                                 PAD2_startPoll(2);
3030                                 if (PAD2_poll(0x42) == 0x23) {
3031                                         PAD2_poll(0);
3032                                         *buf |= PAD2_poll(0) << 24;
3033                                         *buf |= PAD2_poll(0) << 16;
3034                                         PAD2_poll(0);
3035                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
3036                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
3037                                 } else {
3038                                         PAD2_poll(0);
3039                                         *buf |= PAD2_poll(0) << 24;
3040                                         *buf |= PAD2_poll(0) << 16;
3041                                 }
3042                         } else {
3043                                 u16 data;
3044
3045                                 PAD1_startPoll(1);
3046                                 PAD1_poll(0x42);
3047                                 PAD1_poll(0);
3048                                 data = PAD1_poll(0) << 8;
3049                                 data |= PAD1_poll(0);
3050
3051                                 if (NET_sendPadData(&data, 2) == -1)
3052                                         netError();
3053
3054                                 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
3055                                         netError();
3056                                 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3057                                         netError();
3058                         }
3059                 }
3060                 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3061                         psxBios_PADpoll(1);
3062
3063                         if (NET_sendPadData(pad_buf1, i) == -1)
3064                                 netError();
3065
3066                         if (NET_recvPadData(pad_buf1, 1) == -1)
3067                                 netError();
3068                         if (NET_recvPadData(pad_buf2, 2) == -1)
3069                                 netError();
3070                 } else {
3071                         if (pad_buf1) {
3072                                 psxBios_PADpoll(1);
3073                         }
3074
3075                         if (pad_buf2) {
3076                                 psxBios_PADpoll(2);
3077                         }
3078                 }
3079
3080         if (psxHu32(0x1070) & 0x1) { // Vsync
3081                 if (RcEV[3][1].status == EvStACTIVE) {
3082                         softCall(RcEV[3][1].fhandler);
3083 //                      hwWrite32(0x1f801070, ~(1));
3084                 }
3085         }
3086
3087         if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3088                 int i;
3089
3090                 for (i = 0; i < 3; i++) {
3091                         if (psxHu32(0x1070) & (1 << (i + 4))) {
3092                                 if (RcEV[i][1].status == EvStACTIVE) {
3093                                         softCall(RcEV[i][1].fhandler);
3094                                 }
3095                                 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3096                         }
3097                 }
3098         }
3099 }
3100
3101 void psxBiosException() {
3102         int i;
3103
3104         switch (psxRegs.CP0.n.Cause & 0x3c) {
3105                 case 0x00: // Interrupt
3106 #ifdef PSXCPU_LOG
3107 //                      PSXCPU_LOG("interrupt\n");
3108 #endif
3109                         SaveRegs();
3110
3111                         sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3112
3113                         biosInterrupt();
3114
3115                         for (i = 0; i < 8; i++) {
3116                                 if (SysIntRP[i]) {
3117                                         u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3118
3119                                         s0 = queue[2];
3120                                         softCall(queue[1]);
3121                                 }
3122                         }
3123
3124                         if (jmp_int != NULL) {
3125                                 int i;
3126
3127                                 psxHwWrite32(0x1f801070, 0xffffffff);
3128
3129                                 ra = jmp_int[0];
3130                                 sp = jmp_int[1];
3131                                 fp = jmp_int[2];
3132                                 for (i = 0; i < 8; i++) // s0-s7
3133                                          psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3134                                 gp = jmp_int[11];
3135
3136                                 v0 = 1;
3137                                 pc0 = ra;
3138                                 return;
3139                         }
3140                         psxHwWrite16(0x1f801070, 0);
3141                         break;
3142
3143                 case 0x20: // Syscall
3144 #ifdef PSXCPU_LOG
3145                         PSXCPU_LOG("syscall exp %x\n", a0);
3146 #endif
3147                         switch (a0) {
3148                                 case 1: // EnterCritical - disable irq's
3149                                         /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3150                                         v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3151                                         psxRegs.CP0.n.Status &= ~0x404;
3152                                         break;
3153
3154                                 case 2: // ExitCritical - enable irq's
3155                                         psxRegs.CP0.n.Status |= 0x404;
3156                                         break;
3157                         }
3158                         pc0 = psxRegs.CP0.n.EPC + 4;
3159
3160                         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3161                                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3162                         return;
3163
3164                 default:
3165 #ifdef PSXCPU_LOG
3166                         PSXCPU_LOG("unknown bios exception!\n");
3167 #endif
3168                         break;
3169         }
3170
3171         pc0 = psxRegs.CP0.n.EPC;
3172         if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3173
3174         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3175                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3176 }
3177
3178 #define bfreeze(ptr, size) { \
3179         if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3180         if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3181         base += size; \
3182 }
3183
3184 #define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3185 #define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3186
3187 #define bfreezepsxMptr(ptr, type) { \
3188         if (Mode == 1) { \
3189                 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3190                 else psxRu32ref(base) = 0; \
3191         } else { \
3192                 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3193                 else (ptr) = NULL; \
3194         } \
3195         base += sizeof(u32); \
3196 }
3197
3198 void psxBiosFreeze(int Mode) {
3199         u32 base = 0x40000;
3200
3201         bfreezepsxMptr(jmp_int, u32);
3202         bfreezepsxMptr(pad_buf, int);
3203         bfreezepsxMptr(pad_buf1, char);
3204         bfreezepsxMptr(pad_buf2, char);
3205         bfreezepsxMptr(heap_addr, u32);
3206         bfreezel(&pad_buf1len);
3207         bfreezel(&pad_buf2len);
3208         bfreezes(regs);
3209         bfreezes(SysIntRP);
3210         bfreezel(&CardState);
3211         bfreezes(Thread);
3212         bfreezel(&CurThread);
3213         bfreezes(FDesc);
3214         bfreezel(&card_active_chan);
3215 }