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         if (FDesc[1 + mcd].mode & 0x8000) { \
 326         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
 327         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
 328         v0 = 0; } \
 329         else v0 = length; \
 330         FDesc[1 + mcd].offset += v0; \
 331 }
 332
 333 #define buwrite(Ra1, mcd, length) { \
 334         u32 offset =  + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
 335         SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
 336         ptr = Mcd##mcd##Data + offset; \
 337         memcpy(ptr, Ra1, length); \
 338         FDesc[1 + mcd].offset += length; \
 339         if (FDesc[1 + mcd].mode & 0x8000) { \
 340         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
 341         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
 342         v0 = 0; } \
 343         else v0 = length; \
 344 }
 345
 346
 347 /* Internally redirects to "FileRead(fd,tempbuf,1)".*/
 348 /* For some strange reason, the returned character is sign-expanded; */
 349 /* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
 350 /* TODO FIX ME : Properly implement this behaviour */
 351 void psxBios_getc(void) // 0x03, 0x35
 352 {
 353         char *ptr;
 354         void *pa1 = Ra1;
 355 #ifdef PSXBIOS_LOG
 356         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
 357 #endif
 358         v0 = -1;
 359
 360         if (pa1) {
 361                 switch (a0) {
 362                         case 2: buread(pa1, 1, 1); break;
 363                         case 3: buread(pa1, 2, 1); break;
 364                 }
 365         }
 366
 367         pc0 = ra;
 368 }
 369
 370 /* Copy of psxBios_write, except size is 1. */
 371 void psxBios_putc(void) // 0x09, 0x3B
 372 {
 373         char *ptr;
 374         void *pa1 = Ra1;
 375 #ifdef PSXBIOS_LOG
 376         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
 377 #endif
 378         v0 = -1;
 379         if (!pa1) {
 380                 pc0 = ra;
 381                 return;
 382         }
 383
 384         if (a0 == 1) { // stdout
 385                 char *ptr = (char *)pa1;
 386
 387                 v0 = a2;
 388                 while (a2 > 0) {
 389                         printf("%c", *ptr++); a2--;
 390                 }
 391                 pc0 = ra; return;
 392         }
 393
 394         switch (a0) {
 395                 case 2: buwrite(pa1, 1, 1); break;
 396                 case 3: buwrite(pa1, 2, 1); break;
 397         }
 398
 399         pc0 = ra;
 400 }
 401
 402 void psxBios_todigit(void) // 0x0a
 403 {
 404         int c = a0;
 405 #ifdef PSXBIOS_LOG
 406         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
 407 #endif
 408         c &= 0xFF;
 409         if (c >= 0x30 && c < 0x3A) {
 410                 c -= 0x30;
 411         }
 412         else if (c > 0x60 && c < 0x7B) {
 413                 c -= 0x20;
 414         }
 415         else if (c > 0x40 && c < 0x5B) {
 416                 c = c - 0x41 + 10;
 417         }
 418         else if (c >= 0x80) {
 419                 c = -1;
 420         }
 421         else
 422         {
 423                 c = 0x0098967F;
 424         }
 425         v0 = c;
 426         pc0 = ra;
 427 }
 428
 429 void psxBios_abs() { // 0x0e
 430         if ((s32)a0 < 0) v0 = -(s32)a0;
 431         else v0 = a0;
 432         pc0 = ra;
 433 }
 434
 435 void psxBios_labs() { // 0x0f
 436         psxBios_abs();
 437 }
 438
 439 void psxBios_atoi() { // 0x10
 440         s32 n = 0, f = 0;
 441         char *p = (char *)Ra0;
 442
 443         for (;;p++) {
 444                 switch (*p) {
 445                         case ' ': case '\t': continue;
 446                         case '-': f++;
 447                         case '+': p++;
 448                 }
 449                 break;
 450         }
 451
 452         while (*p >= '0' && *p <= '9') {
 453                 n = n * 10 + *p++ - '0';
 454         }
 455
 456         v0 = (f ? -n : n);
 457         pc0 = ra;
 458 }
 459
 460 void psxBios_atol() { // 0x11
 461         psxBios_atoi();
 462 }
 463
 464 void psxBios_setjmp() { // 0x13
 465         u32 *jmp_buf = (u32 *)Ra0;
 466         int i;
 467
 468 #ifdef PSXBIOS_LOG
 469         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
 470 #endif
 471
 472         jmp_buf[0] = ra;
 473         jmp_buf[1] = sp;
 474         jmp_buf[2] = fp;
 475         for (i = 0; i < 8; i++) // s0-s7
 476                 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
 477         jmp_buf[11] = gp;
 478
 479         v0 = 0; pc0 = ra;
 480 }
 481
 482 void psxBios_longjmp() { // 0x14
 483         u32 *jmp_buf = (u32 *)Ra0;
 484         int i;
 485
 486 #ifdef PSXBIOS_LOG
 487         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
 488 #endif
 489
 490         ra = jmp_buf[0]; /* ra */
 491         sp = jmp_buf[1]; /* sp */
 492         fp = jmp_buf[2]; /* fp */
 493         for (i = 0; i < 8; i++) // s0-s7
 494                 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
 495         gp = jmp_buf[11]; /* gp */
 496
 497         v0 = a1; pc0 = ra;
 498 }
 499
 500 void psxBios_strcat() { // 0x15
 501         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 502
 503 #ifdef PSXBIOS_LOG
 504         PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
 505 #endif
 506         if (a0 == 0 || a1 == 0)
 507         {
 508                 v0 = 0;
 509                 pc0 = ra;
 510                 return;
 511         }
 512         while (*p1++);
 513         --p1;
 514         while ((*p1++ = *p2++) != '\0');
 515
 516         v0 = a0; pc0 = ra;
 517 }
 518
 519 void psxBios_strncat() { // 0x16
 520         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 521         s32 n = a2;
 522
 523 #ifdef PSXBIOS_LOG
 524         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
 525 #endif
 526         if (a0 == 0 || a1 == 0)
 527         {
 528                 v0 = 0;
 529                 pc0 = ra;
 530                 return;
 531         }
 532         while (*p1++);
 533         --p1;
 534         while ((*p1++ = *p2++) != '\0') {
 535                 if (--n < 0) {
 536                         *--p1 = '\0';
 537                         break;
 538                 }
 539         }
 540
 541         v0 = a0; pc0 = ra;
 542 }
 543
 544 void psxBios_strcmp() { // 0x17
 545         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 546         s32 n=0;
 547         if (a0 == 0 && a1 == 0)
 548         {
 549                 v0 = 0;
 550                 pc0 = ra;
 551                 return;
 552         }
 553         else if (a0 == 0 && a1 != 0)
 554         {
 555                 v0 = -1;
 556                 pc0 = ra;
 557                 return;
 558         }
 559         else if (a0 != 0 && a1 == 0)
 560         {
 561                 v0 = 1;
 562                 pc0 = ra;
 563                 return;
 564         }
 565 #ifdef PSXBIOS_LOG
 566         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
 567 #endif
 568
 569         while (*p1 == *p2++) {
 570                 n++;
 571                 if (*p1++ == '\0') {
 572                         v1=n-1;
 573                         a0+=n;
 574                         a1+=n;
 575                         v0 = 0;
 576                         pc0 = ra;
 577                         return;
 578                 }
 579         }
 580
 581         v0 = (*p1 - *--p2);
 582         v1 = n;
 583         a0+=n;
 584         a1+=n;
 585         pc0 = ra;
 586 }
 587
 588 void psxBios_strncmp() { // 0x18
 589         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 590         s32 n = a2;
 591         if (a0 == 0 && a1 == 0)
 592         {
 593                 v0 = 0;
 594                 pc0 = ra;
 595                 return;
 596         }
 597         else if (a0 == 0 && a1 != 0)
 598         {
 599                 v0 = -1;
 600                 pc0 = ra;
 601                 return;
 602         }
 603         else if (a0 != 0 && a1 == 0)
 604         {
 605                 v0 = 1;
 606                 pc0 = ra;
 607                 return;
 608         }
 609 #ifdef PSXBIOS_LOG
 610         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
 611 #endif
 612
 613         while (--n >= 0 && *p1 == *p2++) {
 614                 if (*p1++ == '\0') {
 615                         v0 = 0;
 616                         pc0 = ra;
 617                         v1 = a2 - ((a2-n) - 1);
 618                         a0 += (a2-n) - 1;
 619                         a1 += (a2-n) - 1;
 620                         a2 = n;
 621                         return;
 622                 }
 623         }
 624
 625         v0 = (n < 0 ? 0 : *p1 - *--p2);
 626         pc0 = ra;
 627         v1 = a2 - ((a2-n) - 1);
 628         a0 += (a2-n) - 1;
 629         a1 += (a2-n) - 1;
 630         a2 = n;
 631 }
 632
 633 void psxBios_strcpy() { // 0x19
 634         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 635         if (a0 == 0 || a1 == 0)
 636         {
 637                 v0 = 0;
 638                 pc0 = ra;
 639                 return;
 640         }
 641         while ((*p1++ = *p2++) != '\0');
 642
 643         v0 = a0; pc0 = ra;
 644 }
 645
 646 void psxBios_strncpy() { // 0x1a
 647         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 648         s32 n = a2, i;
 649         if (a0 == 0 || a1 == 0)
 650         {
 651                 v0 = 0;
 652                 pc0 = ra;
 653                 return;
 654         }
 655         for (i = 0; i < n; i++) {
 656                 if ((*p1++ = *p2++) == '\0') {
 657                         while (++i < n) {
 658                                 *p1++ = '\0';
 659                         }
 660                         v0 = a0; pc0 = ra;
 661                         return;
 662                 }
 663         }
 664
 665         v0 = a0; pc0 = ra;
 666 }
 667
 668 void psxBios_strlen() { // 0x1b
 669         char *p = (char *)Ra0;
 670         v0 = 0;
 671         if (a0 == 0)
 672         {
 673                 pc0 = ra;
 674                 return;
 675         }
 676         while (*p++) v0++;
 677         pc0 = ra;
 678 }
 679
 680 void psxBios_index() { // 0x1c
 681         char *p = (char *)Ra0;
 682         if (a0 == 0)
 683         {
 684                 v0 = 0;
 685                 pc0 = ra;
 686                 return;
 687         }
 688
 689         do {
 690                 if (*p == a1) {
 691                         v0 = a0 + (p - (char *)Ra0);
 692                         pc0 = ra;
 693                         return;
 694                 }
 695         } while (*p++ != '\0');
 696
 697         v0 = 0; pc0 = ra;
 698 }
 699
 700 void psxBios_rindex() { // 0x1d
 701         char *p = (char *)Ra0;
 702
 703         v0 = 0;
 704         if (a0 == 0)
 705         {
 706                 pc0 = ra;
 707                 return;
 708         }
 709         do {
 710                 if (*p == a1)
 711                         v0 = a0 + (p - (char *)Ra0);
 712         } while (*p++ != '\0');
 713
 714         pc0 = ra;
 715 }
 716
 717 void psxBios_strchr() { // 0x1e
 718         psxBios_index();
 719 }
 720
 721 void psxBios_strrchr() { // 0x1f
 722         psxBios_rindex();
 723 }
 724
 725 void psxBios_strpbrk() { // 0x20
 726         char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
 727
 728         while ((c = *p1++) != '\0') {
 729                 for (scanp = p2; (sc = *scanp++) != '\0';) {
 730                         if (sc == c) {
 731                                 v0 = a0 + (p1 - 1 - (char *)Ra0);
 732                                 pc0 = ra;
 733                                 return;
 734                         }
 735                 }
 736         }
 737
 738         // BUG: return a0 instead of NULL if not found
 739         v0 = a0; pc0 = ra;
 740 }
 741
 742 void psxBios_strspn() { // 0x21
 743         char *p1, *p2;
 744
 745         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 746                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 747                 if (*p2 == '\0') break;
 748         }
 749
 750         v0 = p1 - (char *)Ra0; pc0 = ra;
 751 }
 752
 753 void psxBios_strcspn() { // 0x22
 754         char *p1, *p2;
 755
 756         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 757                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 758                 if (*p2 != '\0') break;
 759         }
 760
 761         v0 = p1 - (char *)Ra0; pc0 = ra;
 762 }
 763
 764 void psxBios_strtok() { // 0x23
 765         char *pcA0 = (char *)Ra0;
 766         char *pcRet = strtok(pcA0, (char *)Ra1);
 767         if (pcRet)
 768                 v0 = a0 + pcRet - pcA0;
 769         else
 770                 v0 = 0;
 771         pc0 = ra;
 772 }
 773
 774 void psxBios_strstr() { // 0x24
 775         char *p = (char *)Ra0, *p1, *p2;
 776
 777         while (*p != '\0') {
 778                 p1 = p;
 779                 p2 = (char *)Ra1;
 780
 781                 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
 782                         p1++; p2++;
 783                 }
 784
 785                 if (*p2 == '\0') {
 786                         v0 = a0 + (p - (char *)Ra0);
 787                         pc0 = ra;
 788                         return;
 789                 }
 790
 791                 p++;
 792         }
 793
 794         v0 = 0; pc0 = ra;
 795 }
 796
 797 void psxBios_toupper() { // 0x25
 798         v0 = (s8)(a0 & 0xff);
 799         if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
 800         pc0 = ra;
 801 }
 802
 803 void psxBios_tolower() { // 0x26
 804         v0 = (s8)(a0 & 0xff);
 805         if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
 806         pc0 = ra;
 807 }
 808
 809 void psxBios_bcopy() { // 0x27
 810         char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
 811         v0 = a0;
 812         if (a0 == 0 || a2 > 0x7FFFFFFF)
 813         {
 814                 pc0 = ra;
 815                 return;
 816         }
 817         while ((s32)a2-- > 0) *p1++ = *p2++;
 818         a2 = 0;
 819         pc0 = ra;
 820 }
 821
 822 void psxBios_bzero() { // 0x28
 823         char *p = (char *)Ra0;
 824         v0 = a0;
 825         /* Same as memset here (See memset below) */
 826         if (a1 > 0x7FFFFFFF || a1 == 0)
 827         {
 828                 v0 = 0;
 829                 pc0 = ra;
 830                 return;
 831         }
 832         else if (a0 == 0)
 833         {
 834                 pc0 = ra;
 835                 return;
 836         }
 837         while ((s32)a1-- > 0) *p++ = '\0';
 838         a1 = 0;
 839         pc0 = ra;
 840 }
 841
 842 void psxBios_bcmp() { // 0x29
 843         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 844
 845         if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
 846
 847         while ((s32)a2-- > 0) {
 848                 if (*p1++ != *p2++) {
 849                         v0 = *p1 - *p2; // BUG: compare the NEXT byte
 850                         pc0 = ra;
 851                         return;
 852                 }
 853         }
 854
 855         v0 = 0; pc0 = ra;
 856 }
 857
 858 void psxBios_memcpy() { // 0x2a
 859         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 860         s32 n=0;
 861         v0 = a0;
 862         if (a0 == 0 || a2 > 0x7FFFFFFF)
 863         {
 864                 pc0 = ra;
 865                 return;
 866         }
 867         while ((s32)a2-- > 0) {
 868                 n++;
 869                 *p1++ = *p2++;
 870         }
 871         a2 = 0;
 872         pc0 = ra;
 873 }
 874
 875 void psxBios_memset() { // 0x2b
 876         char *p = (char *)Ra0;
 877         v0 = a0;
 878         if (a2 > 0x7FFFFFFF || a2 == 0)
 879         {
 880                 v0 = 0;
 881                 pc0 = ra;
 882                 return;
 883         }
 884         if (a0 == 0)
 885         {
 886                 pc0 = ra;
 887                 return;
 888         }
 889         while ((s32)a2-- > 0) *p++ = (char)a1;
 890         a2 = 0;
 891         v0 = a0; pc0 = ra;
 892 }
 893
 894 void psxBios_memmove() { // 0x2c
 895         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 896         v0 = a0;
 897         if (a0 == 0 || a2 > 0x7FFFFFFF)
 898         {
 899                 pc0 = ra;
 900                 return;
 901         }
 902         if (p2 <= p1 && p2 + a2 > p1) {
 903                 a2++; // BUG: copy one more byte here
 904                 p1 += a2;
 905                 p2 += a2;
 906                 while ((s32)a2-- > 0) *--p1 = *--p2;
 907         } else {
 908                 while ((s32)a2-- > 0) *p1++ = *p2++;
 909         }
 910         pc0 = ra;
 911 }
 912
 913 void psxBios_memcmp() { // 0x2d
 914         psxBios_bcmp();
 915 }
 916
 917 void psxBios_memchr() { // 0x2e
 918         char *p = (char *)Ra0;
 919
 920         while ((s32)a2-- > 0) {
 921                 if (*p++ != (s8)a1) continue;
 922                 v0 = a0 + (p - (char *)Ra0 - 1);
 923                 pc0 = ra;
 924                 return;
 925         }
 926
 927         v0 = 0; pc0 = ra;
 928 }
 929
 930 void psxBios_rand() { // 0x2f
 931         u32 s = psxMu32(0x9010) * 1103515245 + 12345;
 932         v0 = (s >> 16) & 0x7fff;
 933         psxMu32ref(0x9010) = SWAPu32(s);
 934         pc0 = ra;
 935 }
 936
 937 void psxBios_srand() { // 0x30
 938         psxMu32ref(0x9010) = SWAPu32(a0);
 939         pc0 = ra;
 940 }
 941
 942 static u32 qscmpfunc, qswidth;
 943
 944 static inline int qscmp(char *a, char *b) {
 945         u32 sa0 = a0;
 946
 947         a0 = sa0 + (a - (char *)PSXM(sa0));
 948         a1 = sa0 + (b - (char *)PSXM(sa0));
 949
 950         softCall2(qscmpfunc);
 951
 952         a0 = sa0;
 953         return (s32)v0;
 954 }
 955
 956 static inline void qexchange(char *i, char *j) {
 957         char t;
 958         int n = qswidth;
 959
 960         do {
 961                 t = *i;
 962                 *i++ = *j;
 963                 *j++ = t;
 964         } while (--n);
 965 }
 966
 967 static inline void q3exchange(char *i, char *j, char *k) {
 968         char t;
 969         int n = qswidth;
 970
 971         do {
 972                 t = *i;
 973                 *i++ = *k;
 974                 *k++ = *j;
 975                 *j++ = t;
 976         } while (--n);
 977 }
 978
 979 static void qsort_main(char *a, char *l) {
 980         char *i, *j, *lp, *hp;
 981         int c;
 982         unsigned int n;
 983
 984 start:
 985         if ((n = l - a) <= qswidth)
 986                 return;
 987         n = qswidth * (n / (2 * qswidth));
 988         hp = lp = a + n;
 989         i = a;
 990         j = l - qswidth;
 991         while (TRUE) {
 992                 if (i < lp) {
 993                         if ((c = qscmp(i, lp)) == 0) {
 994                                 qexchange(i, lp -= qswidth);
 995                                 continue;
 996                         }
 997                         if (c < 0) {
 998                                 i += qswidth;
 999                                 continue;
1000                         }
1001                 }
1002
1003 loop:
1004                 if (j > hp) {
1005                         if ((c = qscmp(hp, j)) == 0) {
1006                                 qexchange(hp += qswidth, j);
1007                                 goto loop;
1008                         }
1009                         if (c > 0) {
1010                                 if (i == lp) {
1011                                         q3exchange(i, hp += qswidth, j);
1012                                         i = lp += qswidth;
1013                                         goto loop;
1014                                 }
1015                                 qexchange(i, j);
1016                                 j -= qswidth;
1017                                 i += qswidth;
1018                                 continue;
1019                         }
1020                         j -= qswidth;
1021                         goto loop;
1022                 }
1023
1024                 if (i == lp) {
1025                         if (lp - a >= l - hp) {
1026                                 qsort_main(hp + qswidth, l);
1027                                 l = lp;
1028                         } else {
1029                                 qsort_main(a, lp);
1030                                 a = hp + qswidth;
1031                         }
1032                         goto start;
1033                 }
1034
1035                 q3exchange(j, lp -= qswidth, i);
1036                 j = hp -= qswidth;
1037         }
1038 }
1039
1040 void psxBios_qsort() { // 0x31
1041         qswidth = a2;
1042         qscmpfunc = a3;
1043         qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
1044
1045         pc0 = ra;
1046 }
1047
1048 void psxBios_malloc() { // 0x33
1049         unsigned int *chunk, *newchunk = NULL;
1050         unsigned int dsize = 0, csize, cstat;
1051         int colflag;
1052 #ifdef PSXBIOS_LOG
1053         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
1054 #endif
1055         if (!a0 || (!heap_size || !heap_addr)) {
1056                 v0 = 0;
1057                 pc0 = ra;
1058                 return;
1059         }
1060
1061         // scan through heap and combine free chunks of space
1062         chunk = heap_addr;
1063         colflag = 0;
1064         while(chunk < heap_end) {
1065                 // get size and status of actual chunk
1066                 csize = ((u32)*chunk) & 0xfffffffc;
1067                 cstat = ((u32)*chunk) & 1;
1068
1069                 // most probably broken heap descriptor
1070                 // this fixes Burning Road
1071                 if (*chunk == 0) {
1072                         newchunk = chunk;
1073                         dsize = ((uptr)heap_end - (uptr)chunk) - 4;
1074                         colflag = 1;
1075                         break;
1076                 }
1077
1078                 // it's a free chunk
1079                 if(cstat == 1) {
1080                         if(colflag == 0) {
1081                                 newchunk = chunk;
1082                                 dsize = csize;
1083                                 colflag = 1;                    // let's begin a new collection of free memory
1084                         }
1085                         else dsize += (csize+4);        // add the new size including header
1086                 }
1087                 // not a free chunk: did we start a collection ?
1088                 else {
1089                         if(colflag == 1) {                      // collection is over
1090                                 colflag = 0;
1091                                 *newchunk = SWAP32(dsize | 1);
1092                         }
1093                 }
1094
1095                 // next chunk
1096                 chunk = (u32*)((uptr)chunk + csize + 4);
1097         }
1098         // if neccessary free memory on end of heap
1099         if (colflag == 1)
1100                 *newchunk = SWAP32(dsize | 1);
1101
1102         chunk = heap_addr;
1103         csize = ((u32)*chunk) & 0xfffffffc;
1104         cstat = ((u32)*chunk) & 1;
1105         dsize = (a0 + 3) & 0xfffffffc;
1106
1107         // exit on uninitialized heap
1108         if (chunk == NULL) {
1109                 printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
1110                 v0 = 0;
1111                 pc0 = ra;
1112                 return;
1113         }
1114
1115         // search an unused chunk that is big enough until the end of the heap
1116         while ((dsize > csize || cstat==0) && chunk < heap_end ) {
1117                 chunk = (u32*)((uptr)chunk + csize + 4);
1118
1119                         // catch out of memory
1120                         if(chunk >= heap_end) {
1121                                 printf("malloc %x,%x: Out of memory error!\n",
1122                                         v0, a0);
1123                                 v0 = 0; pc0 = ra;
1124                                 return;
1125                         }
1126
1127                 csize = ((u32)*chunk) & 0xfffffffc;
1128                 cstat = ((u32)*chunk) & 1;
1129         }
1130
1131         // allocate memory
1132         if(dsize == csize) {
1133                 // chunk has same size
1134                 *chunk &= 0xfffffffc;
1135         } else if (dsize > csize) {
1136                 v0 = 0; pc0 = ra;
1137                 return;
1138         } else {
1139                 // split free chunk
1140                 *chunk = SWAP32(dsize);
1141                 newchunk = (u32*)((uptr)chunk + dsize + 4);
1142                 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
1143         }
1144
1145         // return pointer to allocated memory
1146         v0 = ((uptr)chunk - (uptr)psxM) + 4;
1147         v0|= 0x80000000;
1148         //printf ("malloc %x,%x\n", v0, a0);
1149         pc0 = ra;
1150 }
1151
1152 void psxBios_free() { // 0x34
1153
1154 #ifdef PSXBIOS_LOG
1155         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1156 #endif
1157
1158         SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1159
1160         if (a0)
1161                 *(u32*)(Ra0-4) |= 1;    // set chunk to free
1162         pc0 = ra;
1163 }
1164
1165 void psxBios_calloc() { // 0x37
1166         void *pv0;
1167 #ifdef PSXBIOS_LOG
1168         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1169 #endif
1170
1171         a0 = a0 * a1;
1172         psxBios_malloc();
1173         pv0 = Rv0;
1174         if (pv0)
1175                 memset(pv0, 0, a0);
1176 }
1177
1178 void psxBios_realloc() { // 0x38
1179         u32 block = a0;
1180         u32 size = a1;
1181 #ifdef PSXBIOS_LOG
1182         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1183 #endif
1184
1185         a0 = block;
1186         /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1187         if (block == 0)
1188         {
1189                 psxBios_malloc();
1190         }
1191         /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1192         else if (size == 0)
1193         {
1194                 psxBios_free();
1195         }
1196         /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1197         /* Note that it is not quite implemented this way here. */
1198         else
1199         {
1200                 psxBios_free();
1201                 a0 = size;
1202                 psxBios_malloc();
1203         }
1204 }
1205
1206
1207 /* InitHeap(void *block , int n) */
1208 void psxBios_InitHeap() { // 0x39
1209         unsigned int size;
1210
1211 #ifdef PSXBIOS_LOG
1212         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1213 #endif
1214
1215         if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1216         else size = a1;
1217
1218         size &= 0xfffffffc;
1219
1220         heap_addr = (u32 *)Ra0;
1221         heap_end = (u32 *)((u8 *)heap_addr + size);
1222         *heap_addr = SWAP32(size | 1);
1223
1224         SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
1225
1226         pc0 = ra;
1227 }
1228
1229 void psxBios_getchar() { //0x3b
1230         v0 = getchar(); pc0 = ra;
1231 }
1232
1233 void psxBios_printf() { // 0x3f
1234         char tmp[1024];
1235         char tmp2[1024];
1236         u32 save[4];
1237         char *ptmp = tmp;
1238         int n=1, i=0, j;
1239         void *psp;
1240
1241         psp = PSXM(sp);
1242         if (psp) {
1243                 memcpy(save, psp, 4 * 4);
1244                 psxMu32ref(sp) = SWAP32((u32)a0);
1245                 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1246                 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1247                 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1248         }
1249
1250         while (Ra0[i]) {
1251                 switch (Ra0[i]) {
1252                         case '%':
1253                                 j = 0;
1254                                 tmp2[j++] = '%';
1255 _start:
1256                                 switch (Ra0[++i]) {
1257                                         case '.':
1258                                         case 'l':
1259                                                 tmp2[j++] = Ra0[i]; goto _start;
1260                                         default:
1261                                                 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1262                                                         tmp2[j++] = Ra0[i];
1263                                                         goto _start;
1264                                                 }
1265                                                 break;
1266                                 }
1267                                 tmp2[j++] = Ra0[i];
1268                                 tmp2[j] = 0;
1269
1270                                 switch (Ra0[i]) {
1271                                         case 'f': case 'F':
1272                                                 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1273                                         case 'a': case 'A':
1274                                         case 'e': case 'E':
1275                                         case 'g': case 'G':
1276                                                 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1277                                         case 'p':
1278                                         case 'i': case 'u':
1279                                         case 'd': case 'D':
1280                                         case 'o': case 'O':
1281                                         case 'x': case 'X':
1282                                                 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1283                                         case 'c':
1284                                                 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1285                                         case 's':
1286                                                 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1287                                         case '%':
1288                                                 *ptmp++ = Ra0[i]; break;
1289                                 }
1290                                 i++;
1291                                 break;
1292                         default:
1293                                 *ptmp++ = Ra0[i++];
1294                 }
1295         }
1296         *ptmp = 0;
1297
1298         if (psp)
1299                 memcpy(psp, save, 4 * 4);
1300
1301         SysPrintf("%s", tmp);
1302
1303         pc0 = ra;
1304 }
1305
1306 void psxBios_format() { // 0x41
1307         if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1308         {
1309                 CreateMcd(Config.Mcd1);
1310                 LoadMcd(1, Config.Mcd1);
1311                 v0 = 1;
1312         }
1313         else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1314         {
1315                 CreateMcd(Config.Mcd2);
1316                 LoadMcd(2, Config.Mcd2);
1317                 v0 = 1;
1318         }
1319         else
1320         {
1321                 v0 = 0;
1322         }
1323         pc0 = ra;
1324 }
1325
1326 /*
1327  *      long Load(char *name, struct EXEC *header);
1328  */
1329
1330 void psxBios_Load() { // 0x42
1331         EXE_HEADER eheader;
1332         void *pa1;
1333
1334 #ifdef PSXBIOS_LOG
1335         PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1336 #endif
1337
1338         pa1 = Ra1;
1339         if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1340                 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
1341                 v0 = 1;
1342         } else v0 = 0;
1343
1344         pc0 = ra;
1345 }
1346
1347 /*
1348  *      int Exec(struct EXEC *header , int argc , char **argv);
1349  */
1350
1351 void psxBios_Exec() { // 43
1352         EXEC *header = (EXEC*)Ra0;
1353         u32 tmp;
1354
1355 #ifdef PSXBIOS_LOG
1356         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1357 #endif
1358
1359         header->_sp = sp;
1360         header->_fp = fp;
1361         header->_sp = sp;
1362         header->_gp = gp;
1363         header->ret = ra;
1364         header->base = s0;
1365
1366         if (header->S_addr != 0) {
1367                 tmp = header->S_addr + header->s_size;
1368                 sp = tmp;
1369                 fp = sp;
1370         }
1371
1372         gp = header->gp0;
1373
1374         s0 = a0;
1375
1376         a0 = a1;
1377         a1 = a2;
1378
1379         ra = 0x8000;
1380         pc0 = header->_pc0;
1381 }
1382
1383 void psxBios_FlushCache() { // 44
1384 #ifdef PSXBIOS_LOG
1385         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1386 #endif
1387
1388         pc0 = ra;
1389 }
1390
1391 void psxBios_GPU_dw() { // 0x46
1392         int size;
1393         s32 *ptr;
1394
1395 #ifdef PSXBIOS_LOG
1396         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1397 #endif
1398
1399         GPU_writeData(0xa0000000);
1400         GPU_writeData((a1<<16)|(a0&0xffff));
1401         GPU_writeData((a3<<16)|(a2&0xffff));
1402         size = (a2*a3+1)/2;
1403         ptr = (s32*)PSXM(Rsp[4]);  //that is correct?
1404         do {
1405                 GPU_writeData(SWAP32(*ptr));
1406                 ptr++;
1407         } while(--size);
1408
1409         pc0 = ra;
1410 }
1411
1412 void psxBios_mem2vram() { // 0x47
1413         int size;
1414
1415         GPU_writeData(0xa0000000);
1416         GPU_writeData((a1<<16)|(a0&0xffff));
1417         GPU_writeData((a3<<16)|(a2&0xffff));
1418         size = (a2*a3+1)/2;
1419         GPU_writeStatus(0x04000002);
1420         psxHwWrite32(0x1f8010f4,0);
1421         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1422         psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1423         psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1424         psxHwWrite32(0x1f8010a8,0x01000201);
1425
1426         pc0 = ra;
1427 }
1428
1429 void psxBios_SendGPU() { // 0x48
1430         GPU_writeStatus(a0);
1431         gpuSyncPluginSR();
1432         pc0 = ra;
1433 }
1434
1435 void psxBios_GPU_cw() { // 0x49
1436         GPU_writeData(a0);
1437         pc0 = ra;
1438 }
1439
1440 void psxBios_GPU_cwb() { // 0x4a
1441         s32 *ptr = (s32*)Ra0;
1442         int size = a1;
1443         while(size--) {
1444                 GPU_writeData(SWAP32(*ptr));
1445                 ptr++;
1446         }
1447
1448         pc0 = ra;
1449 }
1450
1451 void psxBios_GPU_SendPackets() { //4b:
1452         GPU_writeStatus(0x04000002);
1453         psxHwWrite32(0x1f8010f4,0);
1454         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1455         psxHwWrite32(0x1f8010a0,a0);
1456         psxHwWrite32(0x1f8010a4,0);
1457         psxHwWrite32(0x1f8010a8,0x010000401);
1458         pc0 = ra;
1459 }
1460
1461 void psxBios_sys_a0_4c() { // 0x4c GPU relate
1462         psxHwWrite32(0x1f8010a8,0x00000401);
1463         GPU_writeData(0x0400000);
1464         GPU_writeData(0x0200000);
1465         GPU_writeData(0x0100000);
1466         v0 = 0x1f801814;
1467         pc0 = ra;
1468 }
1469
1470 void psxBios_GPU_GetGPUStatus() { // 0x4d
1471         v0 = GPU_readStatus();
1472         pc0 = ra;
1473 }
1474
1475 #undef s_addr
1476
1477 void psxBios_LoadExec() { // 51
1478         EXEC *header = (EXEC*)PSXM(0xf000);
1479         u32 s_addr, s_size;
1480
1481 #ifdef PSXBIOS_LOG
1482         PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1483 #endif
1484         s_addr = a1; s_size = a2;
1485
1486         a1 = 0xf000;
1487         psxBios_Load();
1488
1489         header->S_addr = s_addr;
1490         header->s_size = s_size;
1491
1492         a0 = 0xf000; a1 = 0; a2 = 0;
1493         psxBios_Exec();
1494 }
1495
1496 void psxBios__bu_init() { // 70
1497 #ifdef PSXBIOS_LOG
1498         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1499 #endif
1500
1501         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1502         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1503
1504         pc0 = ra;
1505 }
1506
1507 void psxBios__96_init() { // 71
1508 #ifdef PSXBIOS_LOG
1509         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1510 #endif
1511
1512         pc0 = ra;
1513 }
1514
1515 void psxBios__96_remove() { // 72
1516 #ifdef PSXBIOS_LOG
1517         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1518 #endif
1519
1520         pc0 = ra;
1521 }
1522
1523 void psxBios_SetMem() { // 9f
1524         u32 new = psxHu32(0x1060);
1525
1526 #ifdef PSXBIOS_LOG
1527         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1528 #endif
1529
1530         switch(a0) {
1531                 case 2:
1532                         psxHu32ref(0x1060) = SWAP32(new);
1533                         psxMu32ref(0x060) = a0;
1534                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1535                         break;
1536
1537                 case 8:
1538                         psxHu32ref(0x1060) = SWAP32(new | 0x300);
1539                         psxMu32ref(0x060) = a0;
1540                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1541
1542                 default:
1543                         SysPrintf("Effective memory must be 2/8 MBytes\n");
1544                 break;
1545         }
1546
1547         pc0 = ra;
1548 }
1549
1550 void psxBios__card_info() { // ab
1551 #ifdef PSXBIOS_LOG
1552         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1553 #endif
1554         u32 ret;
1555         card_active_chan = a0;
1556
1557         switch (card_active_chan)
1558         {
1559         case 0x00: case 0x01: case 0x02: case 0x03:
1560                 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1561                 break;
1562         case 0x10: case 0x11: case 0x12: case 0x13:
1563                 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1564                 break;
1565         default:
1566 #ifdef PSXBIOS_LOG
1567                 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1568 #endif
1569                 ret = 0x11;
1570                 break;
1571         }
1572
1573 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1574 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1575         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1576         DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
1577
1578         v0 = 1; pc0 = ra;
1579 }
1580
1581 void psxBios__card_load() { // ac
1582 #ifdef PSXBIOS_LOG
1583         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1584 #endif
1585
1586         card_active_chan = a0;
1587
1588 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1589         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1590
1591         v0 = 1; pc0 = ra;
1592 }
1593
1594 /* System calls B0 */
1595
1596 void psxBios_SetRCnt() { // 02
1597 #ifdef PSXBIOS_LOG
1598         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1599 #endif
1600
1601         a0&= 0x3;
1602         if (a0 != 3) {
1603                 u32 mode=0;
1604
1605                 psxRcntWtarget(a0, a1);
1606                 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1607                 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1608                 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1609                 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1610                 else         { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1611
1612                 psxRcntWmode(a0, mode);
1613         }
1614         pc0 = ra;
1615 }
1616
1617 void psxBios_GetRCnt() { // 03
1618 #ifdef PSXBIOS_LOG
1619         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1620 #endif
1621
1622         a0&= 0x3;
1623         if (a0 != 3) v0 = psxRcntRcount(a0);
1624         else v0 = 0;
1625         pc0 = ra;
1626 }
1627
1628 void psxBios_StartRCnt() { // 04
1629 #ifdef PSXBIOS_LOG
1630         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1631 #endif
1632
1633         a0&= 0x3;
1634         if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1635         else psxHu32ref(0x1074)|= SWAPu32(0x1);
1636         v0 = 1; pc0 = ra;
1637 }
1638
1639 void psxBios_StopRCnt() { // 05
1640 #ifdef PSXBIOS_LOG
1641         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1642 #endif
1643
1644         a0&= 0x3;
1645         if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1646         else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1647         pc0 = ra;
1648 }
1649
1650 void psxBios_ResetRCnt() { // 06
1651 #ifdef PSXBIOS_LOG
1652         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1653 #endif
1654
1655         a0&= 0x3;
1656         if (a0 != 3) {
1657                 psxRcntWmode(a0, 0);
1658                 psxRcntWtarget(a0, 0);
1659                 psxRcntWcount(a0, 0);
1660         }
1661         pc0 = ra;
1662 }
1663
1664
1665 /* gets ev for use with Event */
1666 #define GetEv() \
1667         ev = (a0 >> 24) & 0xf; \
1668         if (ev == 0xf) ev = 0x5; \
1669         ev*= 32; \
1670         ev+= a0&0x1f;
1671
1672 /* gets spec for use with Event */
1673 #define GetSpec() \
1674         spec = 0; \
1675         switch (a1) { \
1676                 case 0x0301: spec = 16; break; \
1677                 case 0x0302: spec = 17; break; \
1678                 default: \
1679                         for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1680                         break; \
1681         }
1682
1683 void psxBios_DeliverEvent() { // 07
1684         int ev, spec;
1685         int i;
1686
1687         GetEv();
1688         GetSpec();
1689
1690 #ifdef PSXBIOS_LOG
1691         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1692 #endif
1693
1694         DeliverEvent(ev, spec);
1695
1696         pc0 = ra;
1697 }
1698
1699 void psxBios_OpenEvent() { // 08
1700         int ev, spec;
1701         int i;
1702
1703         GetEv();
1704         GetSpec();
1705
1706 #ifdef PSXBIOS_LOG
1707         PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1708 #endif
1709
1710         Event[ev][spec].status = EvStWAIT;
1711         Event[ev][spec].mode = a2;
1712         Event[ev][spec].fhandler = a3;
1713
1714         v0 = ev | (spec << 8);
1715         pc0 = ra;
1716 }
1717
1718 void psxBios_CloseEvent() { // 09
1719         int ev, spec;
1720
1721         ev   = a0 & 0xff;
1722         spec = (a0 >> 8) & 0xff;
1723
1724 #ifdef PSXBIOS_LOG
1725         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1726 #endif
1727
1728         Event[ev][spec].status = EvStUNUSED;
1729
1730         v0 = 1; pc0 = ra;
1731 }
1732
1733 void psxBios_WaitEvent() { // 0a
1734         int ev, spec;
1735
1736         ev   = a0 & 0xff;
1737         spec = (a0 >> 8) & 0xff;
1738 #ifdef PSXBIOS_LOG
1739         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1740 #endif
1741         if (Event[ev][spec].status == EvStUNUSED)
1742         {
1743                 v0 = 0;
1744                 pc0 = ra;
1745                 return;
1746         }
1747
1748         if (Event[ev][spec].status == EvStALREADY)
1749         {
1750                 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1751                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1752                 v0 = 1;
1753                 pc0 = ra;
1754                 return;
1755         }
1756
1757         v0 = 0;
1758         pc0 = ra;
1759 }
1760
1761 void psxBios_TestEvent() { // 0b
1762         int ev, spec;
1763
1764         ev   = a0 & 0xff;
1765         spec = (a0 >> 8) & 0xff;
1766
1767         if (Event[ev][spec].status == EvStALREADY)
1768         {
1769                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1770                 v0 = 1;
1771         }
1772         else
1773         {
1774                 v0 = 0;
1775         }
1776
1777 #ifdef PSXBIOS_LOG
1778         PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1779 #endif
1780
1781         pc0 = ra;
1782 }
1783
1784 void psxBios_EnableEvent() { // 0c
1785         int ev, spec;
1786
1787         ev   = a0 & 0xff;
1788         spec = (a0 >> 8) & 0xff;
1789
1790 #ifdef PSXBIOS_LOG
1791         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1792 #endif
1793
1794         Event[ev][spec].status = EvStACTIVE;
1795
1796         v0 = 1; pc0 = ra;
1797 }
1798
1799 void psxBios_DisableEvent() { // 0d
1800         int ev, spec;
1801
1802         ev   = a0 & 0xff;
1803         spec = (a0 >> 8) & 0xff;
1804
1805 #ifdef PSXBIOS_LOG
1806         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1807 #endif
1808
1809         Event[ev][spec].status = EvStWAIT;
1810
1811         v0 = 1; pc0 = ra;
1812 }
1813
1814 /*
1815  *      long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1816  */
1817
1818 void psxBios_OpenTh() { // 0e
1819         int th;
1820
1821         for (th=1; th<8; th++)
1822         {
1823                 if (Thread[th].status == 0) break;
1824
1825         }
1826         if (th == 8) {
1827                 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1828                 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1829 #ifdef PSXBIOS_LOG
1830                 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1831 #endif
1832                 v0 = 0xffffffff;
1833                 pc0 = ra;
1834                 return;
1835         }
1836 #ifdef PSXBIOS_LOG
1837         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1838 #endif
1839
1840         Thread[th].status = 1;
1841         Thread[th].func    = a0;
1842         Thread[th].reg[29] = a1;
1843         Thread[th].reg[28] = a2;
1844
1845         v0 = th; pc0 = ra;
1846 }
1847
1848 /*
1849  *      int CloseTh(long thread);
1850  */
1851
1852 void psxBios_CloseTh() { // 0f
1853         int th = a0 & 0xff;
1854
1855 #ifdef PSXBIOS_LOG
1856         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1857 #endif
1858
1859         if (Thread[th].status == 0) {
1860                 v0 = 0;
1861         } else {
1862                 Thread[th].status = 0;
1863                 v0 = 1;
1864         }
1865
1866         pc0 = ra;
1867 }
1868
1869 /*
1870  *      int ChangeTh(long thread);
1871  */
1872
1873 void psxBios_ChangeTh() { // 10
1874         int th = a0 & 0xff;
1875
1876 #ifdef PSXBIOS_LOG
1877 //      PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1878 #endif
1879
1880         if (Thread[th].status == 0 || CurThread == th) {
1881                 v0 = 0;
1882
1883                 pc0 = ra;
1884         } else {
1885                 v0 = 1;
1886
1887                 if (Thread[CurThread].status == 2) {
1888                         Thread[CurThread].status = 1;
1889                         Thread[CurThread].func = ra;
1890                         memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1891                 }
1892
1893                 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1894                 pc0 = Thread[th].func;
1895                 Thread[th].status = 2;
1896                 CurThread = th;
1897         }
1898 }
1899
1900 void psxBios_InitPAD() { // 0x12
1901 #ifdef PSXBIOS_LOG
1902         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1903 #endif
1904
1905         pad_buf1 = (char*)Ra0;
1906         pad_buf1len = a1;
1907         pad_buf2 = (char*)Ra2;
1908         pad_buf2len = a3;
1909
1910         v0 = 1; pc0 = ra;
1911 }
1912
1913 void psxBios_StartPAD() { // 13
1914 #ifdef PSXBIOS_LOG
1915         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1916 #endif
1917
1918         psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1919         psxRegs.CP0.n.Status |= 0x401;
1920         pc0 = ra;
1921 }
1922
1923 void psxBios_StopPAD() { // 14
1924 #ifdef PSXBIOS_LOG
1925         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1926 #endif
1927         if (pad_buf == 0){
1928         pad_buf1 = NULL;
1929         pad_buf2 = NULL;
1930         }
1931         pc0 = ra;
1932 }
1933
1934 void psxBios_PAD_init() { // 15
1935 #ifdef PSXBIOS_LOG
1936         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1937 #endif
1938         if (!(a0 == 0x20000000 || a0 == 0x20000001))
1939         {
1940                 v0 = 0;
1941                 pc0 = ra;
1942                 return;
1943         }
1944         psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1945         pad_buf = (int *)Ra1;
1946         *pad_buf = -1;
1947         psxRegs.CP0.n.Status |= 0x401;
1948         v0 = 2;
1949         pc0 = ra;
1950 }
1951
1952 void psxBios_PAD_dr() { // 16
1953 #ifdef PSXBIOS_LOG
1954         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1955 #endif
1956
1957         v0 = -1; pc0 = ra;
1958 }
1959
1960 void psxBios_ReturnFromException() { // 17
1961         LoadRegs();
1962
1963         pc0 = psxRegs.CP0.n.EPC;
1964         if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1965
1966         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1967                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1968 }
1969
1970 void psxBios_ResetEntryInt() { // 18
1971 #ifdef PSXBIOS_LOG
1972         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1973 #endif
1974
1975         jmp_int = NULL;
1976         pc0 = ra;
1977 }
1978
1979 void psxBios_HookEntryInt() { // 19
1980 #ifdef PSXBIOS_LOG
1981         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1982 #endif
1983
1984         jmp_int = (u32*)Ra0;
1985         pc0 = ra;
1986 }
1987
1988 void psxBios_UnDeliverEvent() { // 0x20
1989         int ev, spec;
1990         int i;
1991
1992         GetEv();
1993         GetSpec();
1994
1995 #ifdef PSXBIOS_LOG
1996         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1997 #endif
1998
1999         if (Event[ev][spec].status == EvStALREADY &&
2000                 Event[ev][spec].mode == EvMdNOINTR)
2001                 Event[ev][spec].status = EvStACTIVE;
2002
2003         pc0 = ra;
2004 }
2005
2006 char ffile[64], *pfile;
2007 int nfile;
2008 static void buopen(int mcd, u8 *ptr, u8 *cfg)
2009 {
2010         int i;
2011         u8 *fptr = ptr;
2012
2013         strcpy(FDesc[1 + mcd].name, Ra0+5);
2014         FDesc[1 + mcd].offset = 0;
2015         FDesc[1 + mcd].mode   = a1;
2016
2017         for (i=1; i<16; i++) {
2018                 fptr += 128;
2019                 if ((*fptr & 0xF0) != 0x50) continue;
2020                 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
2021                 FDesc[1 + mcd].mcfile = i;
2022                 SysPrintf("open %s\n", fptr+0xa);
2023                 v0 = 1 + mcd;
2024                 break;
2025         }
2026         if (a1 & 0x200 && v0 == -1) { /* FCREAT */
2027                 fptr = ptr;
2028                 for (i=1; i<16; i++) {
2029                         int j, xor, nblk = a1 >> 16;
2030                         u8 *pptr, *fptr2;
2031
2032                         fptr += 128;
2033                         if ((*fptr & 0xF0) != 0xa0) continue;
2034
2035                         FDesc[1 + mcd].mcfile = i;
2036                         fptr[0] = 0x51;
2037                         fptr[4] = 0x00;
2038                         fptr[5] = 0x20 * nblk;
2039                         fptr[6] = 0x00;
2040                         fptr[7] = 0x00;
2041                         strcpy(fptr+0xa, FDesc[1 + mcd].name);
2042                         pptr = fptr2 = fptr;
2043                         for(j=2; j<=nblk; j++) {
2044                                 int k;
2045                                 for(i++; i<16; i++) {
2046                                         fptr2 += 128;
2047
2048                                         memset(fptr2, 0, 128);
2049                                         fptr2[0] = j < nblk ? 0x52 : 0x53;
2050                                         pptr[8] = i - 1;
2051                                         pptr[9] = 0;
2052                                         for (k=0, xor=0; k<127; k++) xor^= pptr[k];
2053                                         pptr[127] = xor;
2054                                         pptr = fptr2;
2055                                         break;
2056                                 }
2057                                 /* shouldn't this return ENOSPC if i == 16? */
2058                         }
2059                         pptr[8] = pptr[9] = 0xff;
2060                         for (j=0, xor=0; j<127; j++) xor^= pptr[j];
2061                         pptr[127] = xor;
2062                         SysPrintf("openC %s %d\n", ptr, nblk);
2063                         v0 = 1 + mcd;
2064                         /* just go ahead and resave them all */
2065                         SaveMcd(cfg, ptr, 128, 128 * 15);
2066                         break;
2067                 }
2068                 /* shouldn't this return ENOSPC if i == 16? */
2069         }
2070 }
2071
2072 /*
2073  *      int open(char *name , int mode);
2074  */
2075
2076 void psxBios_open() { // 0x32
2077         int i;
2078         char *ptr;
2079         void *pa0 = Ra0;
2080
2081 #ifdef PSXBIOS_LOG
2082         PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
2083 #endif
2084
2085         v0 = -1;
2086
2087         if (pa0) {
2088                 if (!strncmp(pa0, "bu00", 4)) {
2089                         buopen(1, Mcd1Data, Config.Mcd1);
2090                 }
2091
2092                 if (!strncmp(pa0, "bu10", 4)) {
2093                         buopen(2, Mcd2Data, Config.Mcd2);
2094                 }
2095         }
2096
2097         pc0 = ra;
2098 }
2099
2100 /*
2101  *      int lseek(int fd , int offset , int whence);
2102  */
2103
2104 void psxBios_lseek() { // 0x33
2105 #ifdef PSXBIOS_LOG
2106         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2107 #endif
2108
2109         switch (a2) {
2110                 case 0: // SEEK_SET
2111                         FDesc[a0].offset = a1;
2112                         v0 = a1;
2113 //                      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2114 //                      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2115                         break;
2116
2117                 case 1: // SEEK_CUR
2118                         FDesc[a0].offset+= a1;
2119                         v0 = FDesc[a0].offset;
2120                         break;
2121         }
2122
2123         pc0 = ra;
2124 }
2125
2126
2127 /*
2128  *      int read(int fd , void *buf , int nbytes);
2129  */
2130
2131 void psxBios_read() { // 0x34
2132         char *ptr;
2133         void *pa1 = Ra1;
2134
2135 #ifdef PSXBIOS_LOG
2136         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2137 #endif
2138
2139         v0 = -1;
2140
2141         if (pa1) {
2142                 switch (a0) {
2143                         case 2: buread(pa1, 1, a2); break;
2144                         case 3: buread(pa1, 2, a2); break;
2145                 }
2146         }
2147
2148         pc0 = ra;
2149 }
2150
2151 /*
2152  *      int write(int fd , void *buf , int nbytes);
2153  */
2154
2155 void psxBios_write() { // 0x35/0x03
2156         char *ptr;
2157         void *pa1 = Ra1;
2158
2159 #ifdef PSXBIOS_LOG
2160         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2161 #endif
2162
2163         v0 = -1;
2164         if (!pa1) {
2165                 pc0 = ra;
2166                 return;
2167         }
2168
2169         if (a0 == 1) { // stdout
2170                 char *ptr = pa1;
2171
2172                 v0 = a2;
2173                 while (a2 > 0) {
2174                         SysPrintf("%c", *ptr++); a2--;
2175                 }
2176                 pc0 = ra; return;
2177         }
2178
2179         switch (a0) {
2180                 case 2: buwrite(pa1, 1, a2); break;
2181                 case 3: buwrite(pa1, 2, a2); break;
2182         }
2183
2184         pc0 = ra;
2185 }
2186
2187 /*
2188  *      int close(int fd);
2189  */
2190
2191 void psxBios_close() { // 0x36
2192 #ifdef PSXBIOS_LOG
2193         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2194 #endif
2195
2196         v0 = a0;
2197         pc0 = ra;
2198 }
2199
2200 void psxBios_putchar() { // 3d
2201         SysPrintf("%c", (char)a0);
2202         pc0 = ra;
2203 }
2204
2205 void psxBios_puts() { // 3e/3f
2206         SysPrintf("%s", Ra0);
2207         pc0 = ra;
2208 }
2209
2210 char ffile[64], *pfile;
2211 int nfile;
2212
2213
2214 /* To avoid any issues with different behaviour when using the libc's own strlen instead.
2215  * We want to mimic the PSX's behaviour in this case for bufile. */
2216 static size_t strlen_internal(char* p)
2217 {
2218         size_t size_of_array = 0;
2219         while (*p++) size_of_array++;
2220         return size_of_array;
2221 }
2222
2223 #define bufile(mcd) { \
2224         size_t size_of_name = strlen_internal(dir->name); \
2225         while (nfile < 16) { \
2226                 int match=1; \
2227  \
2228                 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
2229                 nfile++; \
2230                 if ((*ptr & 0xF0) != 0x50) continue; \
2231                 /* Bug link files show up as free block. */ \
2232                 if (!ptr[0xa]) continue; \
2233                 ptr+= 0xa; \
2234                 if (pfile[0] == 0) { \
2235                         strncpy(dir->name, ptr, sizeof(dir->name) - 1); \
2236                         if (size_of_name < sizeof(dir->name)) dir->name[size_of_name] = '\0'; \
2237                 } else for (i=0; i<20; i++) { \
2238                         if (pfile[i] == ptr[i]) { \
2239                                                                 dir->name[i] = ptr[i]; continue; } \
2240                         if (pfile[i] == '?') { \
2241                                 dir->name[i] = ptr[i]; continue; } \
2242                         if (pfile[i] == '*') { \
2243                                 strcpy(dir->name+i, ptr+i); break; } \
2244                         match = 0; break; \
2245                 } \
2246                 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
2247                 if (match == 0) { continue; } \
2248                 dir->size = 8192; \
2249                 v0 = _dir; \
2250                 break; \
2251         } \
2252 }
2253
2254 /*
2255  *      struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2256  */
2257
2258 void psxBios_firstfile() { // 42
2259         struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
2260         void *pa0 = Ra0;
2261         u32 _dir = a1;
2262         char *ptr;
2263         int i;
2264
2265 #ifdef PSXBIOS_LOG
2266         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2267 #endif
2268
2269         v0 = 0;
2270
2271         if (pa0) {
2272                 strcpy(ffile, pa0);
2273                 pfile = ffile+5;
2274                 nfile = 1;
2275                 if (!strncmp(pa0, "bu00", 4)) {
2276                         // firstfile() calls _card_read() internally, so deliver it's event
2277                         DeliverEvent(0x11, 0x2);
2278                         bufile(1);
2279                 } else if (!strncmp(pa0, "bu10", 4)) {
2280                         // firstfile() calls _card_read() internally, so deliver it's event
2281                         DeliverEvent(0x11, 0x2);
2282                         bufile(2);
2283                 }
2284         }
2285
2286         pc0 = ra;
2287 }
2288
2289 /*
2290  *      struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2291  */
2292
2293 void psxBios_nextfile() { // 43
2294         struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2295         u32 _dir = a0;
2296         char *ptr;
2297         int i;
2298
2299 #ifdef PSXBIOS_LOG
2300         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2301 #endif
2302
2303         v0 = 0;
2304
2305         if (!strncmp(ffile, "bu00", 4)) {
2306                 bufile(1);
2307         }
2308
2309         if (!strncmp(ffile, "bu10", 4)) {
2310                 bufile(2);
2311         }
2312
2313         pc0 = ra;
2314 }
2315
2316 #define burename(mcd) { \
2317         for (i=1; i<16; i++) { \
2318                 int namelen, j, xor = 0; \
2319                 ptr = Mcd##mcd##Data + 128 * i; \
2320                 if ((*ptr & 0xF0) != 0x50) continue; \
2321                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2322                 namelen = strlen(Ra1+5); \
2323                 memcpy(ptr+0xa, Ra1+5, namelen); \
2324                 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2325                 for (j=0; j<127; j++) xor^= ptr[j]; \
2326                 ptr[127] = xor; \
2327                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2328                 v0 = 1; \
2329                 break; \
2330         } \
2331 }
2332
2333 /*
2334  *      int rename(char *old, char *new);
2335  */
2336
2337 void psxBios_rename() { // 44
2338         void *pa0 = Ra0;
2339         void *pa1 = Ra1;
2340         char *ptr;
2341         int i;
2342
2343 #ifdef PSXBIOS_LOG
2344         PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2345 #endif
2346
2347         v0 = 0;
2348
2349         if (pa0 && pa1) {
2350                 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2351                         burename(1);
2352                 }
2353
2354                 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2355                         burename(2);
2356                 }
2357         }
2358
2359         pc0 = ra;
2360 }
2361
2362
2363 #define budelete(mcd) { \
2364         for (i=1; i<16; i++) { \
2365                 ptr = Mcd##mcd##Data + 128 * i; \
2366                 if ((*ptr & 0xF0) != 0x50) continue; \
2367                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2368                 *ptr = (*ptr & 0xf) | 0xA0; \
2369                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2370                 SysPrintf("delete %s\n", ptr+0xa); \
2371                 v0 = 1; \
2372                 break; \
2373         } \
2374 }
2375
2376 /*
2377  *      int delete(char *name);
2378  */
2379
2380 void psxBios_delete() { // 45
2381         void *pa0 = Ra0;
2382         char *ptr;
2383         int i;
2384
2385 #ifdef PSXBIOS_LOG
2386         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2387 #endif
2388
2389         v0 = 0;
2390
2391         if (pa0) {
2392                 if (!strncmp(pa0, "bu00", 4)) {
2393                         budelete(1);
2394                 }
2395
2396                 if (!strncmp(pa0, "bu10", 4)) {
2397                         budelete(2);
2398                 }
2399         }
2400
2401         pc0 = ra;
2402 }
2403
2404 void psxBios_InitCARD() { // 4a
2405 #ifdef PSXBIOS_LOG
2406         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2407 #endif
2408
2409         CardState = 0;
2410
2411         pc0 = ra;
2412 }
2413
2414 void psxBios_StartCARD() { // 4b
2415 #ifdef PSXBIOS_LOG
2416         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2417 #endif
2418
2419         if (CardState == 0) CardState = 1;
2420
2421         pc0 = ra;
2422 }
2423
2424 void psxBios_StopCARD() { // 4c
2425 #ifdef PSXBIOS_LOG
2426         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2427 #endif
2428
2429         if (CardState == 1) CardState = 0;
2430
2431         pc0 = ra;
2432 }
2433
2434 void psxBios__card_write() { // 0x4e
2435         void *pa2 = Ra2;
2436         int port;
2437
2438 #ifdef PSXBIOS_LOG
2439         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2440 #endif
2441         /* Function also accepts sector 400h (a bug) */
2442         if (!(a1 <= 0x400))
2443         {
2444                 /* Invalid sectors */
2445                 v0 = 0; pc0 = ra;
2446                 return;
2447         }
2448         card_active_chan = a0;
2449         port = a0 >> 4;
2450
2451         if (pa2) {
2452                 if (port == 0) {
2453                         memcpy(Mcd1Data + a1 * 128, pa2, 128);
2454                         SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2455                 } else {
2456                         memcpy(Mcd2Data + a1 * 128, pa2, 128);
2457                         SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2458                 }
2459         }
2460
2461         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2462 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2463
2464         v0 = 1; pc0 = ra;
2465 }
2466
2467 void psxBios__card_read() { // 0x4f
2468         void *pa2 = Ra2;
2469         int port;
2470
2471 #ifdef PSXBIOS_LOG
2472         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2473 #endif
2474         /* Function also accepts sector 400h (a bug) */
2475         if (!(a1 <= 0x400))
2476         {
2477                 /* Invalid sectors */
2478                 v0 = 0; pc0 = ra;
2479                 return;
2480         }
2481         card_active_chan = a0;
2482         port = a0 >> 4;
2483
2484         if (pa2) {
2485                 if (port == 0) {
2486                         memcpy(pa2, Mcd1Data + a1 * 128, 128);
2487                 } else {
2488                         memcpy(pa2, Mcd2Data + a1 * 128, 128);
2489                 }
2490         }
2491
2492         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2493 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2494
2495         v0 = 1; pc0 = ra;
2496 }
2497
2498 void psxBios__new_card() { // 0x50
2499 #ifdef PSXBIOS_LOG
2500         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2501 #endif
2502
2503         pc0 = ra;
2504 }
2505
2506 /* According to a user, this allows Final Fantasy Tactics to save/load properly */
2507 void psxBios__get_error(void) // 55
2508 {
2509         v0 = 0;
2510         pc0 = ra;
2511 }
2512
2513 void psxBios_Krom2RawAdd() { // 0x51
2514         int i = 0;
2515
2516         const u32 table_8140[][2] = {
2517                 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2518                 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2519                 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2520                 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2521                 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2522                 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2523                 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2524                 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2525                 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2526                 {0xffff, 0}
2527         };
2528
2529         const u32 table_889f[][2] = {
2530                 {0x889f, 0x3d68},  {0x8900, 0x40ec},  {0x897f, 0x4fb0},  {0x8a00, 0x56f4},
2531                 {0x8a7f, 0x65b8},  {0x8b00, 0x6cfc},  {0x8b7f, 0x7bc0},  {0x8c00, 0x8304},
2532                 {0x8c7f, 0x91c8},  {0x8d00, 0x990c},  {0x8d7f, 0xa7d0},  {0x8e00, 0xaf14},
2533                 {0x8e7f, 0xbdd8},  {0x8f00, 0xc51c},  {0x8f7f, 0xd3e0},  {0x9000, 0xdb24},
2534                 {0x907f, 0xe9e8},  {0x9100, 0xf12c},  {0x917f, 0xfff0},  {0x9200, 0x10734},
2535                 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2536                 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2537                 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2538                 {0xffff, 0}
2539         };
2540
2541         if (a0 >= 0x8140 && a0 <= 0x84be) {
2542                 while (table_8140[i][0] <= a0) i++;
2543                 a0 -= table_8140[i - 1][0];
2544                 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2545         } else if (a0 >= 0x889f && a0 <= 0x9872) {
2546                 while (table_889f[i][0] <= a0) i++;
2547                 a0 -= table_889f[i - 1][0];
2548                 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2549         } else {
2550                 v0 = 0xffffffff;
2551         }
2552
2553         pc0 = ra;
2554 }
2555
2556 void psxBios_GetC0Table() { // 56
2557 #ifdef PSXBIOS_LOG
2558         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2559 #endif
2560
2561         v0 = 0x674; pc0 = ra;
2562 }
2563
2564 void psxBios_GetB0Table() { // 57
2565 #ifdef PSXBIOS_LOG
2566         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2567 #endif
2568
2569         v0 = 0x874; pc0 = ra;
2570 }
2571
2572 void psxBios__card_chan() { // 0x58
2573 #ifdef PSXBIOS_LOG
2574         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2575 #endif
2576
2577         v0 = card_active_chan;
2578         pc0 = ra;
2579 }
2580
2581 void psxBios_ChangeClearPad() { // 5b
2582 #ifdef PSXBIOS_LOG
2583         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2584 #endif
2585
2586         pc0 = ra;
2587 }
2588
2589 /* System calls C0 */
2590
2591 /*
2592  * int SysEnqIntRP(int index , long *queue);
2593  */
2594
2595 void psxBios_SysEnqIntRP() { // 02
2596 #ifdef PSXBIOS_LOG
2597         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2598 #endif
2599
2600         SysIntRP[a0] = a1;
2601
2602         v0 = 0; pc0 = ra;
2603 }
2604
2605 /*
2606  * int SysDeqIntRP(int index , long *queue);
2607  */
2608
2609 void psxBios_SysDeqIntRP() { // 03
2610 #ifdef PSXBIOS_LOG
2611         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2612 #endif
2613
2614         SysIntRP[a0] = 0;
2615
2616         v0 = 0; pc0 = ra;
2617 }
2618
2619 void psxBios_ChangeClearRCnt() { // 0a
2620         u32 *ptr;
2621
2622 #ifdef PSXBIOS_LOG
2623         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2624 #endif
2625
2626         ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2627         v0 = *ptr;
2628         *ptr = a1;
2629
2630 //      psxRegs.CP0.n.Status|= 0x404;
2631         pc0 = ra;
2632 }
2633
2634 void psxBios_dummy() {
2635 #ifdef PSXBIOS_LOG
2636         PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2637 #endif
2638         pc0 = ra;
2639 }
2640
2641 void (*biosA0[256])();
2642 void (*biosB0[256])();
2643 void (*biosC0[256])();
2644
2645 #include "sjisfont.h"
2646
2647 void psxBiosInit() {
2648         u32 base, size;
2649         u32 *ptr;
2650         int i;
2651         uLongf len;
2652
2653         for(i = 0; i < 256; i++) {
2654                 biosA0[i] = NULL;
2655                 biosB0[i] = NULL;
2656                 biosC0[i] = NULL;
2657         }
2658         biosA0[0x3e] = psxBios_puts;
2659         biosA0[0x3f] = psxBios_printf;
2660
2661         biosB0[0x3d] = psxBios_putchar;
2662         biosB0[0x3f] = psxBios_puts;
2663
2664         if (!Config.HLE) return;
2665
2666         for(i = 0; i < 256; i++) {
2667                 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2668                 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2669                 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2670         }
2671
2672         biosA0[0x00] = psxBios_open;
2673         biosA0[0x01] = psxBios_lseek;
2674         biosA0[0x02] = psxBios_read;
2675         biosA0[0x03] = psxBios_write;
2676         biosA0[0x04] = psxBios_close;
2677         //biosA0[0x05] = psxBios_ioctl;
2678         //biosA0[0x06] = psxBios_exit;
2679         //biosA0[0x07] = psxBios_sys_a0_07;
2680         biosA0[0x08] = psxBios_getc;
2681         biosA0[0x09] = psxBios_putc;
2682         biosA0[0x0a] = psxBios_todigit;
2683         //biosA0[0x0b] = psxBios_atof;
2684         //biosA0[0x0c] = psxBios_strtoul;
2685         //biosA0[0x0d] = psxBios_strtol;
2686         biosA0[0x0e] = psxBios_abs;
2687         biosA0[0x0f] = psxBios_labs;
2688         biosA0[0x10] = psxBios_atoi;
2689         biosA0[0x11] = psxBios_atol;
2690         //biosA0[0x12] = psxBios_atob;
2691         biosA0[0x13] = psxBios_setjmp;
2692         biosA0[0x14] = psxBios_longjmp;
2693         biosA0[0x15] = psxBios_strcat;
2694         biosA0[0x16] = psxBios_strncat;
2695         biosA0[0x17] = psxBios_strcmp;
2696         biosA0[0x18] = psxBios_strncmp;
2697         biosA0[0x19] = psxBios_strcpy;
2698         biosA0[0x1a] = psxBios_strncpy;
2699         biosA0[0x1b] = psxBios_strlen;
2700         biosA0[0x1c] = psxBios_index;
2701         biosA0[0x1d] = psxBios_rindex;
2702         biosA0[0x1e] = psxBios_strchr;
2703         biosA0[0x1f] = psxBios_strrchr;
2704         biosA0[0x20] = psxBios_strpbrk;
2705         biosA0[0x21] = psxBios_strspn;
2706         biosA0[0x22] = psxBios_strcspn;
2707         biosA0[0x23] = psxBios_strtok;
2708         biosA0[0x24] = psxBios_strstr;
2709         biosA0[0x25] = psxBios_toupper;
2710         biosA0[0x26] = psxBios_tolower;
2711         biosA0[0x27] = psxBios_bcopy;
2712         biosA0[0x28] = psxBios_bzero;
2713         biosA0[0x29] = psxBios_bcmp;
2714         biosA0[0x2a] = psxBios_memcpy;
2715         biosA0[0x2b] = psxBios_memset;
2716         biosA0[0x2c] = psxBios_memmove;
2717         biosA0[0x2d] = psxBios_memcmp;
2718         biosA0[0x2e] = psxBios_memchr;
2719         biosA0[0x2f] = psxBios_rand;
2720         biosA0[0x30] = psxBios_srand;
2721         biosA0[0x31] = psxBios_qsort;
2722         //biosA0[0x32] = psxBios_strtod;
2723         biosA0[0x33] = psxBios_malloc;
2724         biosA0[0x34] = psxBios_free;
2725         //biosA0[0x35] = psxBios_lsearch;
2726         //biosA0[0x36] = psxBios_bsearch;
2727         biosA0[0x37] = psxBios_calloc;
2728         biosA0[0x38] = psxBios_realloc;
2729         biosA0[0x39] = psxBios_InitHeap;
2730         //biosA0[0x3a] = psxBios__exit;
2731         biosA0[0x3b] = psxBios_getchar;
2732         biosA0[0x3c] = psxBios_putchar;
2733         //biosA0[0x3d] = psxBios_gets;
2734         //biosA0[0x40] = psxBios_sys_a0_40;
2735         //biosA0[0x41] = psxBios_LoadTest;
2736         biosA0[0x42] = psxBios_Load;
2737         biosA0[0x43] = psxBios_Exec;
2738         biosA0[0x44] = psxBios_FlushCache;
2739         //biosA0[0x45] = psxBios_InstallInterruptHandler;
2740         biosA0[0x46] = psxBios_GPU_dw;
2741         biosA0[0x47] = psxBios_mem2vram;
2742         biosA0[0x48] = psxBios_SendGPU;
2743         biosA0[0x49] = psxBios_GPU_cw;
2744         biosA0[0x4a] = psxBios_GPU_cwb;
2745         biosA0[0x4b] = psxBios_GPU_SendPackets;
2746         biosA0[0x4c] = psxBios_sys_a0_4c;
2747         biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2748         //biosA0[0x4e] = psxBios_GPU_sync;
2749         //biosA0[0x4f] = psxBios_sys_a0_4f;
2750         //biosA0[0x50] = psxBios_sys_a0_50;
2751         biosA0[0x51] = psxBios_LoadExec;
2752         //biosA0[0x52] = psxBios_GetSysSp;
2753         //biosA0[0x53] = psxBios_sys_a0_53;
2754         //biosA0[0x54] = psxBios__96_init_a54;
2755         //biosA0[0x55] = psxBios__bu_init_a55;
2756         //biosA0[0x56] = psxBios__96_remove_a56;
2757         //biosA0[0x57] = psxBios_sys_a0_57;
2758         //biosA0[0x58] = psxBios_sys_a0_58;
2759         //biosA0[0x59] = psxBios_sys_a0_59;
2760         //biosA0[0x5a] = psxBios_sys_a0_5a;
2761         //biosA0[0x5b] = psxBios_dev_tty_init;
2762         //biosA0[0x5c] = psxBios_dev_tty_open;
2763         //biosA0[0x5d] = psxBios_sys_a0_5d;
2764         //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2765         //biosA0[0x5f] = psxBios_dev_cd_open;
2766         //biosA0[0x60] = psxBios_dev_cd_read;
2767         //biosA0[0x61] = psxBios_dev_cd_close;
2768         //biosA0[0x62] = psxBios_dev_cd_firstfile;
2769         //biosA0[0x63] = psxBios_dev_cd_nextfile;
2770         //biosA0[0x64] = psxBios_dev_cd_chdir;
2771         //biosA0[0x65] = psxBios_dev_card_open;
2772         //biosA0[0x66] = psxBios_dev_card_read;
2773         //biosA0[0x67] = psxBios_dev_card_write;
2774         //biosA0[0x68] = psxBios_dev_card_close;
2775         //biosA0[0x69] = psxBios_dev_card_firstfile;
2776         //biosA0[0x6a] = psxBios_dev_card_nextfile;
2777         //biosA0[0x6b] = psxBios_dev_card_erase;
2778         //biosA0[0x6c] = psxBios_dev_card_undelete;
2779         //biosA0[0x6d] = psxBios_dev_card_format;
2780         //biosA0[0x6e] = psxBios_dev_card_rename;
2781         //biosA0[0x6f] = psxBios_dev_card_6f;
2782         biosA0[0x70] = psxBios__bu_init;
2783         biosA0[0x71] = psxBios__96_init;
2784         biosA0[0x72] = psxBios__96_remove;
2785         //biosA0[0x73] = psxBios_sys_a0_73;
2786         //biosA0[0x74] = psxBios_sys_a0_74;
2787         //biosA0[0x75] = psxBios_sys_a0_75;
2788         //biosA0[0x76] = psxBios_sys_a0_76;
2789         //biosA0[0x77] = psxBios_sys_a0_77;
2790         //biosA0[0x78] = psxBios__96_CdSeekL;
2791         //biosA0[0x79] = psxBios_sys_a0_79;
2792         //biosA0[0x7a] = psxBios_sys_a0_7a;
2793         //biosA0[0x7b] = psxBios_sys_a0_7b;
2794         //biosA0[0x7c] = psxBios__96_CdGetStatus;
2795         //biosA0[0x7d] = psxBios_sys_a0_7d;
2796         //biosA0[0x7e] = psxBios__96_CdRead;
2797         //biosA0[0x7f] = psxBios_sys_a0_7f;
2798         //biosA0[0x80] = psxBios_sys_a0_80;
2799         //biosA0[0x81] = psxBios_sys_a0_81;
2800         //biosA0[0x82] = psxBios_sys_a0_82;
2801         //biosA0[0x83] = psxBios_sys_a0_83;
2802         //biosA0[0x84] = psxBios_sys_a0_84;
2803         //biosA0[0x85] = psxBios__96_CdStop;
2804         //biosA0[0x86] = psxBios_sys_a0_86;
2805         //biosA0[0x87] = psxBios_sys_a0_87;
2806         //biosA0[0x88] = psxBios_sys_a0_88;
2807         //biosA0[0x89] = psxBios_sys_a0_89;
2808         //biosA0[0x8a] = psxBios_sys_a0_8a;
2809         //biosA0[0x8b] = psxBios_sys_a0_8b;
2810         //biosA0[0x8c] = psxBios_sys_a0_8c;
2811         //biosA0[0x8d] = psxBios_sys_a0_8d;
2812         //biosA0[0x8e] = psxBios_sys_a0_8e;
2813         //biosA0[0x8f] = psxBios_sys_a0_8f;
2814         //biosA0[0x90] = psxBios_sys_a0_90;
2815         //biosA0[0x91] = psxBios_sys_a0_91;
2816         //biosA0[0x92] = psxBios_sys_a0_92;
2817         //biosA0[0x93] = psxBios_sys_a0_93;
2818         //biosA0[0x94] = psxBios_sys_a0_94;
2819         //biosA0[0x95] = psxBios_sys_a0_95;
2820         //biosA0[0x96] = psxBios_AddCDROMDevice;
2821         //biosA0[0x97] = psxBios_AddMemCardDevide;
2822         //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2823         //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2824         //biosA0[0x9a] = psxBios_sys_a0_9a;
2825         //biosA0[0x9b] = psxBios_sys_a0_9b;
2826         //biosA0[0x9c] = psxBios_SetConf;
2827         //biosA0[0x9d] = psxBios_GetConf;
2828         //biosA0[0x9e] = psxBios_sys_a0_9e;
2829         biosA0[0x9f] = psxBios_SetMem;
2830         //biosA0[0xa0] = psxBios__boot;
2831         //biosA0[0xa1] = psxBios_SystemError;
2832         //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2833         //biosA0[0xa3] = psxBios_DequeueCdIntr;
2834         //biosA0[0xa4] = psxBios_sys_a0_a4;
2835         //biosA0[0xa5] = psxBios_ReadSector;
2836         //biosA0[0xa6] = psxBios_get_cd_status;
2837         //biosA0[0xa7] = psxBios_bufs_cb_0;
2838         //biosA0[0xa8] = psxBios_bufs_cb_1;
2839         //biosA0[0xa9] = psxBios_bufs_cb_2;
2840         //biosA0[0xaa] = psxBios_bufs_cb_3;
2841         biosA0[0xab] = psxBios__card_info;
2842         biosA0[0xac] = psxBios__card_load;
2843         //biosA0[0axd] = psxBios__card_auto;
2844         //biosA0[0xae] = psxBios_bufs_cd_4;
2845         //biosA0[0xaf] = psxBios_sys_a0_af;
2846         //biosA0[0xb0] = psxBios_sys_a0_b0;
2847         //biosA0[0xb1] = psxBios_sys_a0_b1;
2848         //biosA0[0xb2] = psxBios_do_a_long_jmp
2849         //biosA0[0xb3] = psxBios_sys_a0_b3;
2850         //biosA0[0xb4] = psxBios_sub_function;
2851 //*******************B0 CALLS****************************
2852         //biosB0[0x00] = psxBios_SysMalloc;
2853         //biosB0[0x01] = psxBios_sys_b0_01;
2854         biosB0[0x02] = psxBios_SetRCnt;
2855         biosB0[0x03] = psxBios_GetRCnt;
2856         biosB0[0x04] = psxBios_StartRCnt;
2857         biosB0[0x05] = psxBios_StopRCnt;
2858         biosB0[0x06] = psxBios_ResetRCnt;
2859         biosB0[0x07] = psxBios_DeliverEvent;
2860         biosB0[0x08] = psxBios_OpenEvent;
2861         biosB0[0x09] = psxBios_CloseEvent;
2862         biosB0[0x0a] = psxBios_WaitEvent;
2863         biosB0[0x0b] = psxBios_TestEvent;
2864         biosB0[0x0c] = psxBios_EnableEvent;
2865         biosB0[0x0d] = psxBios_DisableEvent;
2866         biosB0[0x0e] = psxBios_OpenTh;
2867         biosB0[0x0f] = psxBios_CloseTh;
2868         biosB0[0x10] = psxBios_ChangeTh;
2869         //biosB0[0x11] = psxBios_psxBios_b0_11;
2870         biosB0[0x12] = psxBios_InitPAD;
2871         biosB0[0x13] = psxBios_StartPAD;
2872         biosB0[0x14] = psxBios_StopPAD;
2873         biosB0[0x15] = psxBios_PAD_init;
2874         biosB0[0x16] = psxBios_PAD_dr;
2875         biosB0[0x17] = psxBios_ReturnFromException;
2876         biosB0[0x18] = psxBios_ResetEntryInt;
2877         biosB0[0x19] = psxBios_HookEntryInt;
2878         //biosB0[0x1a] = psxBios_sys_b0_1a;
2879         //biosB0[0x1b] = psxBios_sys_b0_1b;
2880         //biosB0[0x1c] = psxBios_sys_b0_1c;
2881         //biosB0[0x1d] = psxBios_sys_b0_1d;
2882         //biosB0[0x1e] = psxBios_sys_b0_1e;
2883         //biosB0[0x1f] = psxBios_sys_b0_1f;
2884         biosB0[0x20] = psxBios_UnDeliverEvent;
2885         //biosB0[0x21] = psxBios_sys_b0_21;
2886         //biosB0[0x22] = psxBios_sys_b0_22;
2887         //biosB0[0x23] = psxBios_sys_b0_23;
2888         //biosB0[0x24] = psxBios_sys_b0_24;
2889         //biosB0[0x25] = psxBios_sys_b0_25;
2890         //biosB0[0x26] = psxBios_sys_b0_26;
2891         //biosB0[0x27] = psxBios_sys_b0_27;
2892         //biosB0[0x28] = psxBios_sys_b0_28;
2893         //biosB0[0x29] = psxBios_sys_b0_29;
2894         //biosB0[0x2a] = psxBios_sys_b0_2a;
2895         //biosB0[0x2b] = psxBios_sys_b0_2b;
2896         //biosB0[0x2c] = psxBios_sys_b0_2c;
2897         //biosB0[0x2d] = psxBios_sys_b0_2d;
2898         //biosB0[0x2e] = psxBios_sys_b0_2e;
2899         //biosB0[0x2f] = psxBios_sys_b0_2f;
2900         //biosB0[0x30] = psxBios_sys_b0_30;
2901         //biosB0[0x31] = psxBios_sys_b0_31;
2902         biosB0[0x32] = psxBios_open;
2903         biosB0[0x33] = psxBios_lseek;
2904         biosB0[0x34] = psxBios_read;
2905         biosB0[0x35] = psxBios_write;
2906         biosB0[0x36] = psxBios_close;
2907         //biosB0[0x37] = psxBios_ioctl;
2908         //biosB0[0x38] = psxBios_exit;
2909         //biosB0[0x39] = psxBios_sys_b0_39;
2910         //biosB0[0x3a] = psxBios_getc;
2911         //biosB0[0x3b] = psxBios_putc;
2912         biosB0[0x3c] = psxBios_getchar;
2913         //biosB0[0x3e] = psxBios_gets;
2914         //biosB0[0x40] = psxBios_cd;
2915         biosB0[0x41] = psxBios_format;
2916         biosB0[0x42] = psxBios_firstfile;
2917         biosB0[0x43] = psxBios_nextfile;
2918         biosB0[0x44] = psxBios_rename;
2919         biosB0[0x45] = psxBios_delete;
2920         //biosB0[0x46] = psxBios_undelete;
2921         //biosB0[0x47] = psxBios_AddDevice;
2922         //biosB0[0x48] = psxBios_RemoteDevice;
2923         //biosB0[0x49] = psxBios_PrintInstalledDevices;
2924         biosB0[0x4a] = psxBios_InitCARD;
2925         biosB0[0x4b] = psxBios_StartCARD;
2926         biosB0[0x4c] = psxBios_StopCARD;
2927         //biosB0[0x4d] = psxBios_sys_b0_4d;
2928         biosB0[0x4e] = psxBios__card_write;
2929         biosB0[0x4f] = psxBios__card_read;
2930         biosB0[0x50] = psxBios__new_card;
2931         biosB0[0x51] = psxBios_Krom2RawAdd;
2932         //biosB0[0x52] = psxBios_sys_b0_52;
2933         //biosB0[0x53] = psxBios_sys_b0_53;
2934         //biosB0[0x54] = psxBios__get_errno;
2935         biosB0[0x55] = psxBios__get_error;
2936         biosB0[0x56] = psxBios_GetC0Table;
2937         biosB0[0x57] = psxBios_GetB0Table;
2938         biosB0[0x58] = psxBios__card_chan;
2939         //biosB0[0x59] = psxBios_sys_b0_59;
2940         //biosB0[0x5a] = psxBios_sys_b0_5a;
2941         biosB0[0x5b] = psxBios_ChangeClearPad;
2942         //biosB0[0x5c] = psxBios__card_status;
2943         //biosB0[0x5d] = psxBios__card_wait;
2944 //*******************C0 CALLS****************************
2945         //biosC0[0x00] = psxBios_InitRCnt;
2946         //biosC0[0x01] = psxBios_InitException;
2947         biosC0[0x02] = psxBios_SysEnqIntRP;
2948         biosC0[0x03] = psxBios_SysDeqIntRP;
2949         //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2950         //biosC0[0x05] = psxBios_get_free_TCB_slot;
2951         //biosC0[0x06] = psxBios_ExceptionHandler;
2952         //biosC0[0x07] = psxBios_InstallExeptionHandler;
2953         //biosC0[0x08] = psxBios_SysInitMemory;
2954         //biosC0[0x09] = psxBios_SysInitKMem;
2955         biosC0[0x0a] = psxBios_ChangeClearRCnt;
2956         //biosC0[0x0b] = psxBios_SystemError;
2957         //biosC0[0x0c] = psxBios_InitDefInt;
2958         //biosC0[0x0d] = psxBios_sys_c0_0d;
2959         //biosC0[0x0e] = psxBios_sys_c0_0e;
2960         //biosC0[0x0f] = psxBios_sys_c0_0f;
2961         //biosC0[0x10] = psxBios_sys_c0_10;
2962         //biosC0[0x11] = psxBios_sys_c0_11;
2963         //biosC0[0x12] = psxBios_InstallDevices;
2964         //biosC0[0x13] = psxBios_FlushStfInOutPut;
2965         //biosC0[0x14] = psxBios_sys_c0_14;
2966         //biosC0[0x15] = psxBios__cdevinput;
2967         //biosC0[0x16] = psxBios__cdevscan;
2968         //biosC0[0x17] = psxBios__circgetc;
2969         //biosC0[0x18] = psxBios__circputc;
2970         //biosC0[0x19] = psxBios_ioabort;
2971         //biosC0[0x1a] = psxBios_sys_c0_1a
2972         //biosC0[0x1b] = psxBios_KernelRedirect;
2973         //biosC0[0x1c] = psxBios_PatchAOTable;
2974 //************** THE END ***************************************
2975 /**/
2976         base = 0x1000;
2977         size = sizeof(EvCB) * 32;
2978         Event = (void *)&psxR[base]; base += size * 6;
2979         memset(Event, 0, size * 6);
2980         HwEV = Event;
2981         EvEV = Event + 32;
2982         RcEV = Event + 32 * 2;
2983         UeEV = Event + 32 * 3;
2984         SwEV = Event + 32 * 4;
2985         ThEV = Event + 32 * 5;
2986
2987         ptr = (u32 *)&psxM[0x0874]; // b0 table
2988         ptr[0] = SWAPu32(0x4c54 - 0x884);
2989
2990         ptr = (u32 *)&psxM[0x0674]; // c0 table
2991         ptr[6] = SWAPu32(0xc80);
2992
2993         memset(SysIntRP, 0, sizeof(SysIntRP));
2994         memset(Thread, 0, sizeof(Thread));
2995         Thread[0].status = 2; // main thread
2996
2997         jmp_int = NULL;
2998         pad_buf = NULL;
2999         pad_buf1 = NULL;
3000         pad_buf2 = NULL;
3001         pad_buf1len = pad_buf2len = 0;
3002         heap_addr = NULL;
3003         heap_end = NULL;
3004         heap_size = 0;
3005         CardState = -1;
3006         CurThread = 0;
3007         memset(FDesc, 0, sizeof(FDesc));
3008
3009         psxMu32ref(0x0150) = SWAPu32(0x160);
3010         psxMu32ref(0x0154) = SWAPu32(0x320);
3011         psxMu32ref(0x0160) = SWAPu32(0x248);
3012         strcpy((char *)&psxM[0x248], "bu");
3013 /*      psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
3014         psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
3015         psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
3016         psxMu32ref(0x09e0) = SWAPu32(0x43d0);
3017         psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
3018 */
3019         // opcode HLE
3020         psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
3021         psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
3022         psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
3023         psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
3024         psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
3025         psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
3026         psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
3027         psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
3028         psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
3029         psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
3030
3031         // initial stack pointer for BIOS interrupt
3032         psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
3033
3034         // initial RNG seed
3035         psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
3036
3037         // fonts
3038         len = 0x80000 - 0x66000;
3039         uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
3040         len = 0x80000 - 0x69d68;
3041         uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
3042
3043         // memory size 2 MB
3044         psxHu32ref(0x1060) = SWAPu32(0x00000b88);
3045
3046         hleSoftCall = FALSE;
3047 }
3048
3049 void psxBiosShutdown() {
3050 }
3051
3052 #define psxBios_PADpoll(pad) { \
3053         PAD##pad##_startPoll(pad); \
3054         pad_buf##pad[0] = 0; \
3055         pad_buf##pad[1] = PAD##pad##_poll(0x42); \
3056         if (!(pad_buf##pad[1] & 0x0f)) { \
3057                 bufcount = 32; \
3058         } else { \
3059                 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
3060         } \
3061         PAD##pad##_poll(0); \
3062         i = 2; \
3063         while (bufcount--) { \
3064                 pad_buf##pad[i++] = PAD##pad##_poll(0); \
3065         } \
3066 }
3067
3068 void biosInterrupt() {
3069         int i, bufcount;
3070
3071 //      if (psxHu32(0x1070) & 0x1) { // Vsync
3072                 if (pad_buf != NULL) {
3073                         u32 *buf = (u32*)pad_buf;
3074
3075                         if (!Config.UseNet) {
3076                                 PAD1_startPoll(1);
3077                                 if (PAD1_poll(0x42) == 0x23) {
3078                                         PAD1_poll(0);
3079                                         *buf = PAD1_poll(0) << 8;
3080                                         *buf |= PAD1_poll(0);
3081                                         PAD1_poll(0);
3082                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
3083                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
3084                                 } else {
3085                                         PAD1_poll(0);
3086                                         *buf = PAD1_poll(0) << 8;
3087                                         *buf|= PAD1_poll(0);
3088                                 }
3089
3090                                 PAD2_startPoll(2);
3091                                 if (PAD2_poll(0x42) == 0x23) {
3092                                         PAD2_poll(0);
3093                                         *buf |= PAD2_poll(0) << 24;
3094                                         *buf |= PAD2_poll(0) << 16;
3095                                         PAD2_poll(0);
3096                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
3097                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
3098                                 } else {
3099                                         PAD2_poll(0);
3100                                         *buf |= PAD2_poll(0) << 24;
3101                                         *buf |= PAD2_poll(0) << 16;
3102                                 }
3103                         } else {
3104                                 u16 data;
3105
3106                                 PAD1_startPoll(1);
3107                                 PAD1_poll(0x42);
3108                                 PAD1_poll(0);
3109                                 data = PAD1_poll(0) << 8;
3110                                 data |= PAD1_poll(0);
3111
3112                                 if (NET_sendPadData(&data, 2) == -1)
3113                                         netError();
3114
3115                                 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
3116                                         netError();
3117                                 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3118                                         netError();
3119                         }
3120                 }
3121                 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3122                         psxBios_PADpoll(1);
3123
3124                         if (NET_sendPadData(pad_buf1, i) == -1)
3125                                 netError();
3126
3127                         if (NET_recvPadData(pad_buf1, 1) == -1)
3128                                 netError();
3129                         if (NET_recvPadData(pad_buf2, 2) == -1)
3130                                 netError();
3131                 } else {
3132                         if (pad_buf1) {
3133                                 psxBios_PADpoll(1);
3134                         }
3135
3136                         if (pad_buf2) {
3137                                 psxBios_PADpoll(2);
3138                         }
3139                 }
3140
3141         if (psxHu32(0x1070) & 0x1) { // Vsync
3142                 if (RcEV[3][1].status == EvStACTIVE) {
3143                         softCall(RcEV[3][1].fhandler);
3144 //                      hwWrite32(0x1f801070, ~(1));
3145                 }
3146         }
3147
3148         if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3149                 int i;
3150
3151                 for (i = 0; i < 3; i++) {
3152                         if (psxHu32(0x1070) & (1 << (i + 4))) {
3153                                 if (RcEV[i][1].status == EvStACTIVE) {
3154                                         softCall(RcEV[i][1].fhandler);
3155                                 }
3156                                 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3157                         }
3158                 }
3159         }
3160 }
3161
3162 void psxBiosException() {
3163         int i;
3164
3165         switch (psxRegs.CP0.n.Cause & 0x3c) {
3166                 case 0x00: // Interrupt
3167 #ifdef PSXCPU_LOG
3168 //                      PSXCPU_LOG("interrupt\n");
3169 #endif
3170                         SaveRegs();
3171
3172                         sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3173
3174                         biosInterrupt();
3175
3176                         for (i = 0; i < 8; i++) {
3177                                 if (SysIntRP[i]) {
3178                                         u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3179
3180                                         s0 = queue[2];
3181                                         softCall(queue[1]);
3182                                 }
3183                         }
3184
3185                         if (jmp_int != NULL) {
3186                                 int i;
3187
3188                                 psxHwWrite32(0x1f801070, 0xffffffff);
3189
3190                                 ra = jmp_int[0];
3191                                 sp = jmp_int[1];
3192                                 fp = jmp_int[2];
3193                                 for (i = 0; i < 8; i++) // s0-s7
3194                                          psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3195                                 gp = jmp_int[11];
3196
3197                                 v0 = 1;
3198                                 pc0 = ra;
3199                                 return;
3200                         }
3201                         psxHwWrite16(0x1f801070, 0);
3202                         break;
3203
3204                 case 0x20: // Syscall
3205 #ifdef PSXCPU_LOG
3206                         PSXCPU_LOG("syscall exp %x\n", a0);
3207 #endif
3208                         switch (a0) {
3209                                 case 1: // EnterCritical - disable irq's
3210                                         /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3211                                         v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3212                                         psxRegs.CP0.n.Status &= ~0x404;
3213                                         break;
3214
3215                                 case 2: // ExitCritical - enable irq's
3216                                         psxRegs.CP0.n.Status |= 0x404;
3217                                         break;
3218                                 /* Normally this should cover SYS(00h, SYS(04h but they don't do anything relevant so... */
3219                                 default:
3220                                         break;
3221                         }
3222                         pc0 = psxRegs.CP0.n.EPC + 4;
3223
3224                         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3225                                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3226                         return;
3227
3228                 default:
3229 #ifdef PSXCPU_LOG
3230                         PSXCPU_LOG("unknown bios exception!\n");
3231 #endif
3232                         break;
3233         }
3234
3235         pc0 = psxRegs.CP0.n.EPC;
3236         if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3237
3238         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3239                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3240 }
3241
3242 #define bfreeze(ptr, size) { \
3243         if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3244         if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3245         base += size; \
3246 }
3247
3248 #define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3249 #define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3250
3251 #define bfreezepsxMptr(ptr, type) { \
3252         if (Mode == 1) { \
3253                 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3254                 else psxRu32ref(base) = 0; \
3255         } else { \
3256                 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3257                 else (ptr) = NULL; \
3258         } \
3259         base += sizeof(u32); \
3260 }
3261
3262 void psxBiosFreeze(int Mode) {
3263         u32 base = 0x40000;
3264
3265         bfreezepsxMptr(jmp_int, u32);
3266         bfreezepsxMptr(pad_buf, int);
3267         bfreezepsxMptr(pad_buf1, char);
3268         bfreezepsxMptr(pad_buf2, char);
3269         bfreezepsxMptr(heap_addr, u32);
3270         bfreezel(&pad_buf1len);
3271         bfreezel(&pad_buf2len);
3272         bfreezes(regs);
3273         bfreezes(SysIntRP);
3274         bfreezel(&CardState);
3275         bfreezes(Thread);
3276         bfreezel(&CurThread);
3277         bfreezes(FDesc);
3278         bfreezel(&card_active_chan);
3279 }