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 static int pad_stopped = 0;
 249
 250 static u32 regs[35];
 251 static EvCB *Event;
 252 static EvCB *HwEV; // 0xf0
 253 static EvCB *EvEV; // 0xf1
 254 static EvCB *RcEV; // 0xf2
 255 static EvCB *UeEV; // 0xf3
 256 static EvCB *SwEV; // 0xf4
 257 static EvCB *ThEV; // 0xff
 258 static u32 heap_size = 0;
 259 static u32 *heap_addr = NULL;
 260 static u32 *heap_end = NULL;
 261 static u32 SysIntRP[8];
 262 static int CardState = -1;
 263 static TCB Thread[8];
 264 static int CurThread = 0;
 265 static FileDesc FDesc[32];
 266 static u32 card_active_chan;
 267
 268 boolean hleSoftCall = FALSE;
 269
 270 static inline void softCall(u32 pc) {
 271         pc0 = pc;
 272         ra = 0x80001000;
 273
 274         hleSoftCall = TRUE;
 275
 276         while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
 277
 278         hleSoftCall = FALSE;
 279 }
 280
 281 static inline void softCall2(u32 pc) {
 282         u32 sra = ra;
 283         pc0 = pc;
 284         ra = 0x80001000;
 285
 286         hleSoftCall = TRUE;
 287
 288         while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
 289         ra = sra;
 290
 291         hleSoftCall = FALSE;
 292 }
 293
 294 static inline void DeliverEvent(u32 ev, u32 spec) {
 295         if (Event[ev][spec].status != EvStACTIVE) return;
 296
 297 //      Event[ev][spec].status = EvStALREADY;
 298         if (Event[ev][spec].mode == EvMdINTR) {
 299                 softCall2(Event[ev][spec].fhandler);
 300         } else Event[ev][spec].status = EvStALREADY;
 301 }
 302
 303 static inline void SaveRegs() {
 304         memcpy(regs, psxRegs.GPR.r, 32*4);
 305         regs[32] = psxRegs.GPR.n.lo;
 306         regs[33] = psxRegs.GPR.n.hi;
 307         regs[34] = psxRegs.pc;
 308 }
 309
 310 static inline void LoadRegs() {
 311         memcpy(psxRegs.GPR.r, regs, 32*4);
 312         psxRegs.GPR.n.lo = regs[32];
 313         psxRegs.GPR.n.hi = regs[33];
 314 }
 315
 316 /*                                           *
 317 //                                           *
 318 //                                           *
 319 //               System calls A0             */
 320
 321
 322 #define buread(Ra1, mcd, length) { \
 323         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); \
 324         ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
 325         memcpy(Ra1, ptr, length); \
 326         if (FDesc[1 + mcd].mode & 0x8000) { \
 327         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
 328         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
 329         v0 = 0; } \
 330         else v0 = length; \
 331         FDesc[1 + mcd].offset += v0; \
 332 }
 333
 334 #define buwrite(Ra1, mcd, length) { \
 335         u32 offset =  + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
 336         SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
 337         ptr = Mcd##mcd##Data + offset; \
 338         memcpy(ptr, Ra1, length); \
 339         FDesc[1 + mcd].offset += length; \
 340         if (FDesc[1 + mcd].mode & 0x8000) { \
 341         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
 342         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
 343         v0 = 0; } \
 344         else v0 = length; \
 345 }
 346
 347
 348 /* Internally redirects to "FileRead(fd,tempbuf,1)".*/
 349 /* For some strange reason, the returned character is sign-expanded; */
 350 /* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
 351 /* TODO FIX ME : Properly implement this behaviour */
 352 void psxBios_getc(void) // 0x03, 0x35
 353 {
 354         char *ptr;
 355         void *pa1 = Ra1;
 356 #ifdef PSXBIOS_LOG
 357         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
 358 #endif
 359         v0 = -1;
 360
 361         if (pa1) {
 362                 switch (a0) {
 363                         case 2: buread(pa1, 1, 1); break;
 364                         case 3: buread(pa1, 2, 1); break;
 365                 }
 366         }
 367
 368         pc0 = ra;
 369 }
 370
 371 /* Copy of psxBios_write, except size is 1. */
 372 void psxBios_putc(void) // 0x09, 0x3B
 373 {
 374         char *ptr;
 375         void *pa1 = Ra1;
 376 #ifdef PSXBIOS_LOG
 377         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
 378 #endif
 379         v0 = -1;
 380         if (!pa1) {
 381                 pc0 = ra;
 382                 return;
 383         }
 384
 385         if (a0 == 1) { // stdout
 386                 char *ptr = (char *)pa1;
 387
 388                 v0 = a2;
 389                 while (a2 > 0) {
 390                         printf("%c", *ptr++); a2--;
 391                 }
 392                 pc0 = ra; return;
 393         }
 394
 395         switch (a0) {
 396                 case 2: buwrite(pa1, 1, 1); break;
 397                 case 3: buwrite(pa1, 2, 1); break;
 398         }
 399
 400         pc0 = ra;
 401 }
 402
 403 void psxBios_todigit(void) // 0x0a
 404 {
 405         int c = a0;
 406 #ifdef PSXBIOS_LOG
 407         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
 408 #endif
 409         c &= 0xFF;
 410         if (c >= 0x30 && c < 0x3A) {
 411                 c -= 0x30;
 412         }
 413         else if (c > 0x60 && c < 0x7B) {
 414                 c -= 0x20;
 415         }
 416         else if (c > 0x40 && c < 0x5B) {
 417                 c = c - 0x41 + 10;
 418         }
 419         else if (c >= 0x80) {
 420                 c = -1;
 421         }
 422         else
 423         {
 424                 c = 0x0098967F;
 425         }
 426         v0 = c;
 427         pc0 = ra;
 428 }
 429
 430 void psxBios_abs() { // 0x0e
 431         if ((s32)a0 < 0) v0 = -(s32)a0;
 432         else v0 = a0;
 433         pc0 = ra;
 434 }
 435
 436 void psxBios_labs() { // 0x0f
 437         psxBios_abs();
 438 }
 439
 440 void psxBios_atoi() { // 0x10
 441         s32 n = 0, f = 0;
 442         char *p = (char *)Ra0;
 443
 444         for (;;p++) {
 445                 switch (*p) {
 446                         case ' ': case '\t': continue;
 447                         case '-': f++;
 448                         case '+': p++;
 449                 }
 450                 break;
 451         }
 452
 453         while (*p >= '0' && *p <= '9') {
 454                 n = n * 10 + *p++ - '0';
 455         }
 456
 457         v0 = (f ? -n : n);
 458         pc0 = ra;
 459 }
 460
 461 void psxBios_atol() { // 0x11
 462         psxBios_atoi();
 463 }
 464
 465 void psxBios_setjmp() { // 0x13
 466         u32 *jmp_buf = (u32 *)Ra0;
 467         int i;
 468
 469 #ifdef PSXBIOS_LOG
 470         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
 471 #endif
 472
 473         jmp_buf[0] = ra;
 474         jmp_buf[1] = sp;
 475         jmp_buf[2] = fp;
 476         for (i = 0; i < 8; i++) // s0-s7
 477                 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
 478         jmp_buf[11] = gp;
 479
 480         v0 = 0; pc0 = ra;
 481 }
 482
 483 void psxBios_longjmp() { // 0x14
 484         u32 *jmp_buf = (u32 *)Ra0;
 485         int i;
 486
 487 #ifdef PSXBIOS_LOG
 488         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
 489 #endif
 490
 491         ra = jmp_buf[0]; /* ra */
 492         sp = jmp_buf[1]; /* sp */
 493         fp = jmp_buf[2]; /* fp */
 494         for (i = 0; i < 8; i++) // s0-s7
 495                 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
 496         gp = jmp_buf[11]; /* gp */
 497
 498         v0 = a1; pc0 = ra;
 499 }
 500
 501 void psxBios_strcat() { // 0x15
 502         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 503
 504 #ifdef PSXBIOS_LOG
 505         PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
 506 #endif
 507         if (a0 == 0 || a1 == 0)
 508         {
 509                 v0 = 0;
 510                 pc0 = ra;
 511                 return;
 512         }
 513         while (*p1++);
 514         --p1;
 515         while ((*p1++ = *p2++) != '\0');
 516
 517         v0 = a0; pc0 = ra;
 518 }
 519
 520 void psxBios_strncat() { // 0x16
 521         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 522         s32 n = a2;
 523
 524 #ifdef PSXBIOS_LOG
 525         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
 526 #endif
 527         if (a0 == 0 || a1 == 0)
 528         {
 529                 v0 = 0;
 530                 pc0 = ra;
 531                 return;
 532         }
 533         while (*p1++);
 534         --p1;
 535         while ((*p1++ = *p2++) != '\0') {
 536                 if (--n < 0) {
 537                         *--p1 = '\0';
 538                         break;
 539                 }
 540         }
 541
 542         v0 = a0; pc0 = ra;
 543 }
 544
 545 void psxBios_strcmp() { // 0x17
 546         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 547         s32 n=0;
 548         if (a0 == 0 && a1 == 0)
 549         {
 550                 v0 = 0;
 551                 pc0 = ra;
 552                 return;
 553         }
 554         else if (a0 == 0 && a1 != 0)
 555         {
 556                 v0 = -1;
 557                 pc0 = ra;
 558                 return;
 559         }
 560         else if (a0 != 0 && a1 == 0)
 561         {
 562                 v0 = 1;
 563                 pc0 = ra;
 564                 return;
 565         }
 566 #ifdef PSXBIOS_LOG
 567         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
 568 #endif
 569
 570         while (*p1 == *p2++) {
 571                 n++;
 572                 if (*p1++ == '\0') {
 573                         v1=n-1;
 574                         a0+=n;
 575                         a1+=n;
 576                         v0 = 0;
 577                         pc0 = ra;
 578                         return;
 579                 }
 580         }
 581
 582         v0 = (*p1 - *--p2);
 583         v1 = n;
 584         a0+=n;
 585         a1+=n;
 586         pc0 = ra;
 587 }
 588
 589 void psxBios_strncmp() { // 0x18
 590         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 591         s32 n = a2;
 592         if (a0 == 0 && a1 == 0)
 593         {
 594                 v0 = 0;
 595                 pc0 = ra;
 596                 return;
 597         }
 598         else if (a0 == 0 && a1 != 0)
 599         {
 600                 v0 = -1;
 601                 pc0 = ra;
 602                 return;
 603         }
 604         else if (a0 != 0 && a1 == 0)
 605         {
 606                 v0 = 1;
 607                 pc0 = ra;
 608                 return;
 609         }
 610 #ifdef PSXBIOS_LOG
 611         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
 612 #endif
 613
 614         while (--n >= 0 && *p1 == *p2++) {
 615                 if (*p1++ == '\0') {
 616                         v0 = 0;
 617                         pc0 = ra;
 618                         v1 = a2 - ((a2-n) - 1);
 619                         a0 += (a2-n) - 1;
 620                         a1 += (a2-n) - 1;
 621                         a2 = n;
 622                         return;
 623                 }
 624         }
 625
 626         v0 = (n < 0 ? 0 : *p1 - *--p2);
 627         pc0 = ra;
 628         v1 = a2 - ((a2-n) - 1);
 629         a0 += (a2-n) - 1;
 630         a1 += (a2-n) - 1;
 631         a2 = n;
 632 }
 633
 634 void psxBios_strcpy() { // 0x19
 635         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 636         if (a0 == 0 || a1 == 0)
 637         {
 638                 v0 = 0;
 639                 pc0 = ra;
 640                 return;
 641         }
 642         while ((*p1++ = *p2++) != '\0');
 643
 644         v0 = a0; pc0 = ra;
 645 }
 646
 647 void psxBios_strncpy() { // 0x1a
 648         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 649         s32 n = a2, i;
 650         if (a0 == 0 || a1 == 0)
 651         {
 652                 v0 = 0;
 653                 pc0 = ra;
 654                 return;
 655         }
 656         for (i = 0; i < n; i++) {
 657                 if ((*p1++ = *p2++) == '\0') {
 658                         while (++i < n) {
 659                                 *p1++ = '\0';
 660                         }
 661                         v0 = a0; pc0 = ra;
 662                         return;
 663                 }
 664         }
 665
 666         v0 = a0; pc0 = ra;
 667 }
 668
 669 void psxBios_strlen() { // 0x1b
 670         char *p = (char *)Ra0;
 671         v0 = 0;
 672         if (a0 == 0)
 673         {
 674                 pc0 = ra;
 675                 return;
 676         }
 677         while (*p++) v0++;
 678         pc0 = ra;
 679 }
 680
 681 void psxBios_index() { // 0x1c
 682         char *p = (char *)Ra0;
 683         if (a0 == 0)
 684         {
 685                 v0 = 0;
 686                 pc0 = ra;
 687                 return;
 688         }
 689
 690         do {
 691                 if (*p == a1) {
 692                         v0 = a0 + (p - (char *)Ra0);
 693                         pc0 = ra;
 694                         return;
 695                 }
 696         } while (*p++ != '\0');
 697
 698         v0 = 0; pc0 = ra;
 699 }
 700
 701 void psxBios_rindex() { // 0x1d
 702         char *p = (char *)Ra0;
 703
 704         v0 = 0;
 705         if (a0 == 0)
 706         {
 707                 pc0 = ra;
 708                 return;
 709         }
 710         do {
 711                 if (*p == a1)
 712                         v0 = a0 + (p - (char *)Ra0);
 713         } while (*p++ != '\0');
 714
 715         pc0 = ra;
 716 }
 717
 718 void psxBios_strchr() { // 0x1e
 719         psxBios_index();
 720 }
 721
 722 void psxBios_strrchr() { // 0x1f
 723         psxBios_rindex();
 724 }
 725
 726 void psxBios_strpbrk() { // 0x20
 727         char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
 728
 729         while ((c = *p1++) != '\0') {
 730                 for (scanp = p2; (sc = *scanp++) != '\0';) {
 731                         if (sc == c) {
 732                                 v0 = a0 + (p1 - 1 - (char *)Ra0);
 733                                 pc0 = ra;
 734                                 return;
 735                         }
 736                 }
 737         }
 738
 739         // BUG: return a0 instead of NULL if not found
 740         v0 = a0; pc0 = ra;
 741 }
 742
 743 void psxBios_strspn() { // 0x21
 744         char *p1, *p2;
 745
 746         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 747                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 748                 if (*p2 == '\0') break;
 749         }
 750
 751         v0 = p1 - (char *)Ra0; pc0 = ra;
 752 }
 753
 754 void psxBios_strcspn() { // 0x22
 755         char *p1, *p2;
 756
 757         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 758                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 759                 if (*p2 != '\0') break;
 760         }
 761
 762         v0 = p1 - (char *)Ra0; pc0 = ra;
 763 }
 764
 765 void psxBios_strtok() { // 0x23
 766         char *pcA0 = (char *)Ra0;
 767         char *pcRet = strtok(pcA0, (char *)Ra1);
 768         if (pcRet)
 769                 v0 = a0 + pcRet - pcA0;
 770         else
 771                 v0 = 0;
 772         pc0 = ra;
 773 }
 774
 775 void psxBios_strstr() { // 0x24
 776         char *p = (char *)Ra0, *p1, *p2;
 777
 778         while (*p != '\0') {
 779                 p1 = p;
 780                 p2 = (char *)Ra1;
 781
 782                 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
 783                         p1++; p2++;
 784                 }
 785
 786                 if (*p2 == '\0') {
 787                         v0 = a0 + (p - (char *)Ra0);
 788                         pc0 = ra;
 789                         return;
 790                 }
 791
 792                 p++;
 793         }
 794
 795         v0 = 0; pc0 = ra;
 796 }
 797
 798 void psxBios_toupper() { // 0x25
 799         v0 = (s8)(a0 & 0xff);
 800         if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
 801         pc0 = ra;
 802 }
 803
 804 void psxBios_tolower() { // 0x26
 805         v0 = (s8)(a0 & 0xff);
 806         if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
 807         pc0 = ra;
 808 }
 809
 810 void psxBios_bcopy() { // 0x27
 811         char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
 812         v0 = a0;
 813         if (a0 == 0 || a2 > 0x7FFFFFFF)
 814         {
 815                 pc0 = ra;
 816                 return;
 817         }
 818         while ((s32)a2-- > 0) *p1++ = *p2++;
 819         a2 = 0;
 820         pc0 = ra;
 821 }
 822
 823 void psxBios_bzero() { // 0x28
 824         char *p = (char *)Ra0;
 825         v0 = a0;
 826         /* Same as memset here (See memset below) */
 827         if (a1 > 0x7FFFFFFF || a1 == 0)
 828         {
 829                 v0 = 0;
 830                 pc0 = ra;
 831                 return;
 832         }
 833         else if (a0 == 0)
 834         {
 835                 pc0 = ra;
 836                 return;
 837         }
 838         while ((s32)a1-- > 0) *p++ = '\0';
 839         a1 = 0;
 840         pc0 = ra;
 841 }
 842
 843 void psxBios_bcmp() { // 0x29
 844         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 845
 846         if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
 847
 848         while ((s32)a2-- > 0) {
 849                 if (*p1++ != *p2++) {
 850                         v0 = *p1 - *p2; // BUG: compare the NEXT byte
 851                         pc0 = ra;
 852                         return;
 853                 }
 854         }
 855
 856         v0 = 0; pc0 = ra;
 857 }
 858
 859 void psxBios_memcpy() { // 0x2a
 860         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 861         s32 n=0;
 862         v0 = a0;
 863         if (a0 == 0 || a2 > 0x7FFFFFFF)
 864         {
 865                 pc0 = ra;
 866                 return;
 867         }
 868         while ((s32)a2-- > 0) {
 869                 n++;
 870                 *p1++ = *p2++;
 871         }
 872         a2 = 0;
 873         pc0 = ra;
 874 }
 875
 876 void psxBios_memset() { // 0x2b
 877         char *p = (char *)Ra0;
 878         v0 = a0;
 879         if (a2 > 0x7FFFFFFF || a2 == 0)
 880         {
 881                 v0 = 0;
 882                 pc0 = ra;
 883                 return;
 884         }
 885         if (a0 == 0)
 886         {
 887                 pc0 = ra;
 888                 return;
 889         }
 890         while ((s32)a2-- > 0) *p++ = (char)a1;
 891         a2 = 0;
 892         v0 = a0; pc0 = ra;
 893 }
 894
 895 void psxBios_memmove() { // 0x2c
 896         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 897         v0 = a0;
 898         if (a0 == 0 || a2 > 0x7FFFFFFF)
 899         {
 900                 pc0 = ra;
 901                 return;
 902         }
 903         if (p2 <= p1 && p2 + a2 > p1) {
 904                 a2++; // BUG: copy one more byte here
 905                 p1 += a2;
 906                 p2 += a2;
 907                 while ((s32)a2-- > 0) *--p1 = *--p2;
 908         } else {
 909                 while ((s32)a2-- > 0) *p1++ = *p2++;
 910         }
 911         pc0 = ra;
 912 }
 913
 914 void psxBios_memcmp() { // 0x2d
 915         psxBios_bcmp();
 916 }
 917
 918 void psxBios_memchr() { // 0x2e
 919         char *p = (char *)Ra0;
 920
 921         while ((s32)a2-- > 0) {
 922                 if (*p++ != (s8)a1) continue;
 923                 v0 = a0 + (p - (char *)Ra0 - 1);
 924                 pc0 = ra;
 925                 return;
 926         }
 927
 928         v0 = 0; pc0 = ra;
 929 }
 930
 931 void psxBios_rand() { // 0x2f
 932         u32 s = psxMu32(0x9010) * 1103515245 + 12345;
 933         v0 = (s >> 16) & 0x7fff;
 934         psxMu32ref(0x9010) = SWAPu32(s);
 935         pc0 = ra;
 936 }
 937
 938 void psxBios_srand() { // 0x30
 939         psxMu32ref(0x9010) = SWAPu32(a0);
 940         pc0 = ra;
 941 }
 942
 943 static u32 qscmpfunc, qswidth;
 944
 945 static inline int qscmp(char *a, char *b) {
 946         u32 sa0 = a0;
 947
 948         a0 = sa0 + (a - (char *)PSXM(sa0));
 949         a1 = sa0 + (b - (char *)PSXM(sa0));
 950
 951         softCall2(qscmpfunc);
 952
 953         a0 = sa0;
 954         return (s32)v0;
 955 }
 956
 957 static inline void qexchange(char *i, char *j) {
 958         char t;
 959         int n = qswidth;
 960
 961         do {
 962                 t = *i;
 963                 *i++ = *j;
 964                 *j++ = t;
 965         } while (--n);
 966 }
 967
 968 static inline void q3exchange(char *i, char *j, char *k) {
 969         char t;
 970         int n = qswidth;
 971
 972         do {
 973                 t = *i;
 974                 *i++ = *k;
 975                 *k++ = *j;
 976                 *j++ = t;
 977         } while (--n);
 978 }
 979
 980 static void qsort_main(char *a, char *l) {
 981         char *i, *j, *lp, *hp;
 982         int c;
 983         unsigned int n;
 984
 985 start:
 986         if ((n = l - a) <= qswidth)
 987                 return;
 988         n = qswidth * (n / (2 * qswidth));
 989         hp = lp = a + n;
 990         i = a;
 991         j = l - qswidth;
 992         while (TRUE) {
 993                 if (i < lp) {
 994                         if ((c = qscmp(i, lp)) == 0) {
 995                                 qexchange(i, lp -= qswidth);
 996                                 continue;
 997                         }
 998                         if (c < 0) {
 999                                 i += qswidth;
1000                                 continue;
1001                         }
1002                 }
1003
1004 loop:
1005                 if (j > hp) {
1006                         if ((c = qscmp(hp, j)) == 0) {
1007                                 qexchange(hp += qswidth, j);
1008                                 goto loop;
1009                         }
1010                         if (c > 0) {
1011                                 if (i == lp) {
1012                                         q3exchange(i, hp += qswidth, j);
1013                                         i = lp += qswidth;
1014                                         goto loop;
1015                                 }
1016                                 qexchange(i, j);
1017                                 j -= qswidth;
1018                                 i += qswidth;
1019                                 continue;
1020                         }
1021                         j -= qswidth;
1022                         goto loop;
1023                 }
1024
1025                 if (i == lp) {
1026                         if (lp - a >= l - hp) {
1027                                 qsort_main(hp + qswidth, l);
1028                                 l = lp;
1029                         } else {
1030                                 qsort_main(a, lp);
1031                                 a = hp + qswidth;
1032                         }
1033                         goto start;
1034                 }
1035
1036                 q3exchange(j, lp -= qswidth, i);
1037                 j = hp -= qswidth;
1038         }
1039 }
1040
1041 void psxBios_qsort() { // 0x31
1042         qswidth = a2;
1043         qscmpfunc = a3;
1044         qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
1045
1046         pc0 = ra;
1047 }
1048
1049 void psxBios_malloc() { // 0x33
1050         unsigned int *chunk, *newchunk = NULL;
1051         unsigned int dsize = 0, csize, cstat;
1052         int colflag;
1053 #ifdef PSXBIOS_LOG
1054         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
1055 #endif
1056         if (!a0 || (!heap_size || !heap_addr)) {
1057                 v0 = 0;
1058                 pc0 = ra;
1059                 return;
1060         }
1061
1062         // scan through heap and combine free chunks of space
1063         chunk = heap_addr;
1064         colflag = 0;
1065         while(chunk < heap_end) {
1066                 // get size and status of actual chunk
1067                 csize = ((u32)*chunk) & 0xfffffffc;
1068                 cstat = ((u32)*chunk) & 1;
1069
1070                 // most probably broken heap descriptor
1071                 // this fixes Burning Road
1072                 if (*chunk == 0) {
1073                         newchunk = chunk;
1074                         dsize = ((uptr)heap_end - (uptr)chunk) - 4;
1075                         colflag = 1;
1076                         break;
1077                 }
1078
1079                 // it's a free chunk
1080                 if(cstat == 1) {
1081                         if(colflag == 0) {
1082                                 newchunk = chunk;
1083                                 dsize = csize;
1084                                 colflag = 1;                    // let's begin a new collection of free memory
1085                         }
1086                         else dsize += (csize+4);        // add the new size including header
1087                 }
1088                 // not a free chunk: did we start a collection ?
1089                 else {
1090                         if(colflag == 1) {                      // collection is over
1091                                 colflag = 0;
1092                                 *newchunk = SWAP32(dsize | 1);
1093                         }
1094                 }
1095
1096                 // next chunk
1097                 chunk = (u32*)((uptr)chunk + csize + 4);
1098         }
1099         // if neccessary free memory on end of heap
1100         if (colflag == 1)
1101                 *newchunk = SWAP32(dsize | 1);
1102
1103         chunk = heap_addr;
1104         csize = ((u32)*chunk) & 0xfffffffc;
1105         cstat = ((u32)*chunk) & 1;
1106         dsize = (a0 + 3) & 0xfffffffc;
1107
1108         // exit on uninitialized heap
1109         if (chunk == NULL) {
1110                 printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
1111                 v0 = 0;
1112                 pc0 = ra;
1113                 return;
1114         }
1115
1116         // search an unused chunk that is big enough until the end of the heap
1117         while ((dsize > csize || cstat==0) && chunk < heap_end ) {
1118                 chunk = (u32*)((uptr)chunk + csize + 4);
1119
1120                         // catch out of memory
1121                         if(chunk >= heap_end) {
1122                                 printf("malloc %x,%x: Out of memory error!\n",
1123                                         v0, a0);
1124                                 v0 = 0; pc0 = ra;
1125                                 return;
1126                         }
1127
1128                 csize = ((u32)*chunk) & 0xfffffffc;
1129                 cstat = ((u32)*chunk) & 1;
1130         }
1131
1132         // allocate memory
1133         if(dsize == csize) {
1134                 // chunk has same size
1135                 *chunk &= 0xfffffffc;
1136         } else if (dsize > csize) {
1137                 v0 = 0; pc0 = ra;
1138                 return;
1139         } else {
1140                 // split free chunk
1141                 *chunk = SWAP32(dsize);
1142                 newchunk = (u32*)((uptr)chunk + dsize + 4);
1143                 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
1144         }
1145
1146         // return pointer to allocated memory
1147         v0 = ((uptr)chunk - (uptr)psxM) + 4;
1148         v0|= 0x80000000;
1149         //printf ("malloc %x,%x\n", v0, a0);
1150         pc0 = ra;
1151 }
1152
1153 void psxBios_free() { // 0x34
1154
1155 #ifdef PSXBIOS_LOG
1156         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1157 #endif
1158
1159         SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1160
1161         if (a0)
1162                 *(u32*)(Ra0-4) |= 1;    // set chunk to free
1163         pc0 = ra;
1164 }
1165
1166 void psxBios_calloc() { // 0x37
1167         void *pv0;
1168 #ifdef PSXBIOS_LOG
1169         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1170 #endif
1171
1172         a0 = a0 * a1;
1173         psxBios_malloc();
1174         pv0 = Rv0;
1175         if (pv0)
1176                 memset(pv0, 0, a0);
1177 }
1178
1179 void psxBios_realloc() { // 0x38
1180         u32 block = a0;
1181         u32 size = a1;
1182 #ifdef PSXBIOS_LOG
1183         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1184 #endif
1185
1186         a0 = block;
1187         /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1188         if (block == 0)
1189         {
1190                 psxBios_malloc();
1191         }
1192         /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1193         else if (size == 0)
1194         {
1195                 psxBios_free();
1196         }
1197         /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1198         /* Note that it is not quite implemented this way here. */
1199         else
1200         {
1201                 psxBios_free();
1202                 a0 = size;
1203                 psxBios_malloc();
1204         }
1205 }
1206
1207
1208 /* InitHeap(void *block , int n) */
1209 void psxBios_InitHeap() { // 0x39
1210         unsigned int size;
1211
1212 #ifdef PSXBIOS_LOG
1213         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1214 #endif
1215
1216         if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1217         else size = a1;
1218
1219         size &= 0xfffffffc;
1220
1221         heap_addr = (u32 *)Ra0;
1222         heap_end = (u32 *)((u8 *)heap_addr + size);
1223         *heap_addr = SWAP32(size | 1);
1224
1225         SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
1226
1227         pc0 = ra;
1228 }
1229
1230 void psxBios_getchar() { //0x3b
1231         v0 = getchar(); pc0 = ra;
1232 }
1233
1234 void psxBios_printf() { // 0x3f
1235         char tmp[1024];
1236         char tmp2[1024];
1237         u32 save[4];
1238         char *ptmp = tmp;
1239         int n=1, i=0, j;
1240         void *psp;
1241
1242         psp = PSXM(sp);
1243         if (psp) {
1244                 memcpy(save, psp, 4 * 4);
1245                 psxMu32ref(sp) = SWAP32((u32)a0);
1246                 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1247                 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1248                 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1249         }
1250
1251         while (Ra0[i]) {
1252                 switch (Ra0[i]) {
1253                         case '%':
1254                                 j = 0;
1255                                 tmp2[j++] = '%';
1256 _start:
1257                                 switch (Ra0[++i]) {
1258                                         case '.':
1259                                         case 'l':
1260                                                 tmp2[j++] = Ra0[i]; goto _start;
1261                                         default:
1262                                                 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1263                                                         tmp2[j++] = Ra0[i];
1264                                                         goto _start;
1265                                                 }
1266                                                 break;
1267                                 }
1268                                 tmp2[j++] = Ra0[i];
1269                                 tmp2[j] = 0;
1270
1271                                 switch (Ra0[i]) {
1272                                         case 'f': case 'F':
1273                                                 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1274                                         case 'a': case 'A':
1275                                         case 'e': case 'E':
1276                                         case 'g': case 'G':
1277                                                 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1278                                         case 'p':
1279                                         case 'i': case 'u':
1280                                         case 'd': case 'D':
1281                                         case 'o': case 'O':
1282                                         case 'x': case 'X':
1283                                                 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1284                                         case 'c':
1285                                                 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1286                                         case 's':
1287                                                 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1288                                         case '%':
1289                                                 *ptmp++ = Ra0[i]; break;
1290                                 }
1291                                 i++;
1292                                 break;
1293                         default:
1294                                 *ptmp++ = Ra0[i++];
1295                 }
1296         }
1297         *ptmp = 0;
1298
1299         if (psp)
1300                 memcpy(psp, save, 4 * 4);
1301
1302         SysPrintf("%s", tmp);
1303
1304         pc0 = ra;
1305 }
1306
1307 void psxBios_format() { // 0x41
1308         if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1309         {
1310                 CreateMcd(Config.Mcd1);
1311                 LoadMcd(1, Config.Mcd1);
1312                 v0 = 1;
1313         }
1314         else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1315         {
1316                 CreateMcd(Config.Mcd2);
1317                 LoadMcd(2, Config.Mcd2);
1318                 v0 = 1;
1319         }
1320         else
1321         {
1322                 v0 = 0;
1323         }
1324         pc0 = ra;
1325 }
1326
1327 /*
1328  *      long Load(char *name, struct EXEC *header);
1329  */
1330
1331 void psxBios_Load() { // 0x42
1332         EXE_HEADER eheader;
1333         void *pa1;
1334
1335 #ifdef PSXBIOS_LOG
1336         PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1337 #endif
1338
1339         pa1 = Ra1;
1340         if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1341                 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
1342                 v0 = 1;
1343         } else v0 = 0;
1344
1345         pc0 = ra;
1346 }
1347
1348 /*
1349  *      int Exec(struct EXEC *header , int argc , char **argv);
1350  */
1351
1352 void psxBios_Exec() { // 43
1353         EXEC *header = (EXEC*)Ra0;
1354         u32 tmp;
1355
1356 #ifdef PSXBIOS_LOG
1357         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1358 #endif
1359
1360         header->_sp = sp;
1361         header->_fp = fp;
1362         header->_sp = sp;
1363         header->_gp = gp;
1364         header->ret = ra;
1365         header->base = s0;
1366
1367         if (header->S_addr != 0) {
1368                 tmp = header->S_addr + header->s_size;
1369                 sp = tmp;
1370                 fp = sp;
1371         }
1372
1373         gp = header->gp0;
1374
1375         s0 = a0;
1376
1377         a0 = a1;
1378         a1 = a2;
1379
1380         ra = 0x8000;
1381         pc0 = header->_pc0;
1382 }
1383
1384 void psxBios_FlushCache() { // 44
1385 #ifdef PSXBIOS_LOG
1386         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1387 #endif
1388
1389         pc0 = ra;
1390 }
1391
1392 void psxBios_GPU_dw() { // 0x46
1393         int size;
1394         s32 *ptr;
1395
1396 #ifdef PSXBIOS_LOG
1397         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1398 #endif
1399
1400         GPU_writeData(0xa0000000);
1401         GPU_writeData((a1<<16)|(a0&0xffff));
1402         GPU_writeData((a3<<16)|(a2&0xffff));
1403         size = (a2*a3+1)/2;
1404         ptr = (s32*)PSXM(Rsp[4]);  //that is correct?
1405         do {
1406                 GPU_writeData(SWAP32(*ptr));
1407                 ptr++;
1408         } while(--size);
1409
1410         pc0 = ra;
1411 }
1412
1413 void psxBios_mem2vram() { // 0x47
1414         int size;
1415
1416         GPU_writeData(0xa0000000);
1417         GPU_writeData((a1<<16)|(a0&0xffff));
1418         GPU_writeData((a3<<16)|(a2&0xffff));
1419         size = (a2*a3+1)/2;
1420         GPU_writeStatus(0x04000002);
1421         psxHwWrite32(0x1f8010f4,0);
1422         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1423         psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1424         psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1425         psxHwWrite32(0x1f8010a8,0x01000201);
1426
1427         pc0 = ra;
1428 }
1429
1430 void psxBios_SendGPU() { // 0x48
1431         GPU_writeStatus(a0);
1432         gpuSyncPluginSR();
1433         pc0 = ra;
1434 }
1435
1436 void psxBios_GPU_cw() { // 0x49
1437         GPU_writeData(a0);
1438         pc0 = ra;
1439 }
1440
1441 void psxBios_GPU_cwb() { // 0x4a
1442         s32 *ptr = (s32*)Ra0;
1443         int size = a1;
1444         while(size--) {
1445                 GPU_writeData(SWAP32(*ptr));
1446                 ptr++;
1447         }
1448
1449         pc0 = ra;
1450 }
1451
1452 void psxBios_GPU_SendPackets() { //4b:
1453         GPU_writeStatus(0x04000002);
1454         psxHwWrite32(0x1f8010f4,0);
1455         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1456         psxHwWrite32(0x1f8010a0,a0);
1457         psxHwWrite32(0x1f8010a4,0);
1458         psxHwWrite32(0x1f8010a8,0x010000401);
1459         pc0 = ra;
1460 }
1461
1462 void psxBios_sys_a0_4c() { // 0x4c GPU relate
1463         psxHwWrite32(0x1f8010a8,0x00000401);
1464         GPU_writeData(0x0400000);
1465         GPU_writeData(0x0200000);
1466         GPU_writeData(0x0100000);
1467         v0 = 0x1f801814;
1468         pc0 = ra;
1469 }
1470
1471 void psxBios_GPU_GetGPUStatus() { // 0x4d
1472         v0 = GPU_readStatus();
1473         pc0 = ra;
1474 }
1475
1476 #undef s_addr
1477
1478 void psxBios_LoadExec() { // 51
1479         EXEC *header = (EXEC*)PSXM(0xf000);
1480         u32 s_addr, s_size;
1481
1482 #ifdef PSXBIOS_LOG
1483         PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1484 #endif
1485         s_addr = a1; s_size = a2;
1486
1487         a1 = 0xf000;
1488         psxBios_Load();
1489
1490         header->S_addr = s_addr;
1491         header->s_size = s_size;
1492
1493         a0 = 0xf000; a1 = 0; a2 = 0;
1494         psxBios_Exec();
1495 }
1496
1497 void psxBios__bu_init() { // 70
1498 #ifdef PSXBIOS_LOG
1499         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1500 #endif
1501
1502         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1503         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1504
1505         pc0 = ra;
1506 }
1507
1508 void psxBios__96_init() { // 71
1509 #ifdef PSXBIOS_LOG
1510         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1511 #endif
1512
1513         pc0 = ra;
1514 }
1515
1516 void psxBios__96_remove() { // 72
1517 #ifdef PSXBIOS_LOG
1518         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1519 #endif
1520
1521         pc0 = ra;
1522 }
1523
1524 void psxBios_SetMem() { // 9f
1525         u32 new = psxHu32(0x1060);
1526
1527 #ifdef PSXBIOS_LOG
1528         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1529 #endif
1530
1531         switch(a0) {
1532                 case 2:
1533                         psxHu32ref(0x1060) = SWAP32(new);
1534                         psxMu32ref(0x060) = a0;
1535                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1536                         break;
1537
1538                 case 8:
1539                         psxHu32ref(0x1060) = SWAP32(new | 0x300);
1540                         psxMu32ref(0x060) = a0;
1541                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1542
1543                 default:
1544                         SysPrintf("Effective memory must be 2/8 MBytes\n");
1545                 break;
1546         }
1547
1548         pc0 = ra;
1549 }
1550
1551 void psxBios__card_info() { // ab
1552 #ifdef PSXBIOS_LOG
1553         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1554 #endif
1555         u32 ret;
1556         card_active_chan = a0;
1557
1558         switch (card_active_chan)
1559         {
1560         case 0x00: case 0x01: case 0x02: case 0x03:
1561                 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1562                 break;
1563         case 0x10: case 0x11: case 0x12: case 0x13:
1564                 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1565                 break;
1566         default:
1567 #ifdef PSXBIOS_LOG
1568                 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1569 #endif
1570                 ret = 0x11;
1571                 break;
1572         }
1573
1574 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1575 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1576         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1577         DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
1578
1579         v0 = 1; pc0 = ra;
1580 }
1581
1582 void psxBios__card_load() { // ac
1583 #ifdef PSXBIOS_LOG
1584         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1585 #endif
1586
1587         card_active_chan = a0;
1588
1589 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1590         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1591
1592         v0 = 1; pc0 = ra;
1593 }
1594
1595 /* System calls B0 */
1596
1597 void psxBios_SetRCnt() { // 02
1598 #ifdef PSXBIOS_LOG
1599         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1600 #endif
1601
1602         a0&= 0x3;
1603         if (a0 != 3) {
1604                 u32 mode=0;
1605
1606                 psxRcntWtarget(a0, a1);
1607                 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1608                 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1609                 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1610                 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1611                 else         { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1612
1613                 psxRcntWmode(a0, mode);
1614         }
1615         pc0 = ra;
1616 }
1617
1618 void psxBios_GetRCnt() { // 03
1619 #ifdef PSXBIOS_LOG
1620         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1621 #endif
1622
1623         a0&= 0x3;
1624         if (a0 != 3) v0 = psxRcntRcount(a0);
1625         else v0 = 0;
1626         pc0 = ra;
1627 }
1628
1629 void psxBios_StartRCnt() { // 04
1630 #ifdef PSXBIOS_LOG
1631         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1632 #endif
1633
1634         a0&= 0x3;
1635         if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1636         else psxHu32ref(0x1074)|= SWAPu32(0x1);
1637         v0 = 1; pc0 = ra;
1638 }
1639
1640 void psxBios_StopRCnt() { // 05
1641 #ifdef PSXBIOS_LOG
1642         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1643 #endif
1644
1645         a0&= 0x3;
1646         if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1647         else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1648         pc0 = ra;
1649 }
1650
1651 void psxBios_ResetRCnt() { // 06
1652 #ifdef PSXBIOS_LOG
1653         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1654 #endif
1655
1656         a0&= 0x3;
1657         if (a0 != 3) {
1658                 psxRcntWmode(a0, 0);
1659                 psxRcntWtarget(a0, 0);
1660                 psxRcntWcount(a0, 0);
1661         }
1662         pc0 = ra;
1663 }
1664
1665
1666 /* gets ev for use with Event */
1667 #define GetEv() \
1668         ev = (a0 >> 24) & 0xf; \
1669         if (ev == 0xf) ev = 0x5; \
1670         ev*= 32; \
1671         ev+= a0&0x1f;
1672
1673 /* gets spec for use with Event */
1674 #define GetSpec() \
1675         spec = 0; \
1676         switch (a1) { \
1677                 case 0x0301: spec = 16; break; \
1678                 case 0x0302: spec = 17; break; \
1679                 default: \
1680                         for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1681                         break; \
1682         }
1683
1684 void psxBios_DeliverEvent() { // 07
1685         int ev, spec;
1686         int i;
1687
1688         GetEv();
1689         GetSpec();
1690
1691 #ifdef PSXBIOS_LOG
1692         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1693 #endif
1694
1695         DeliverEvent(ev, spec);
1696
1697         pc0 = ra;
1698 }
1699
1700 void psxBios_OpenEvent() { // 08
1701         int ev, spec;
1702         int i;
1703
1704         GetEv();
1705         GetSpec();
1706
1707 #ifdef PSXBIOS_LOG
1708         PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1709 #endif
1710
1711         Event[ev][spec].status = EvStWAIT;
1712         Event[ev][spec].mode = a2;
1713         Event[ev][spec].fhandler = a3;
1714
1715         v0 = ev | (spec << 8);
1716         pc0 = ra;
1717 }
1718
1719 void psxBios_CloseEvent() { // 09
1720         int ev, spec;
1721
1722         ev   = a0 & 0xff;
1723         spec = (a0 >> 8) & 0xff;
1724
1725 #ifdef PSXBIOS_LOG
1726         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1727 #endif
1728
1729         Event[ev][spec].status = EvStUNUSED;
1730
1731         v0 = 1; pc0 = ra;
1732 }
1733
1734 void psxBios_WaitEvent() { // 0a
1735         int ev, spec;
1736
1737         ev   = a0 & 0xff;
1738         spec = (a0 >> 8) & 0xff;
1739 #ifdef PSXBIOS_LOG
1740         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1741 #endif
1742         if (Event[ev][spec].status == EvStUNUSED)
1743         {
1744                 v0 = 0;
1745                 pc0 = ra;
1746                 return;
1747         }
1748
1749         if (Event[ev][spec].status == EvStALREADY)
1750         {
1751                 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1752                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1753                 v0 = 1;
1754                 pc0 = ra;
1755                 return;
1756         }
1757
1758         v0 = 0;
1759         pc0 = ra;
1760 }
1761
1762 void psxBios_TestEvent() { // 0b
1763         int ev, spec;
1764
1765         ev   = a0 & 0xff;
1766         spec = (a0 >> 8) & 0xff;
1767
1768         if (Event[ev][spec].status == EvStALREADY)
1769         {
1770                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1771                 v0 = 1;
1772         }
1773         else
1774         {
1775                 v0 = 0;
1776         }
1777
1778 #ifdef PSXBIOS_LOG
1779         PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1780 #endif
1781
1782         pc0 = ra;
1783 }
1784
1785 void psxBios_EnableEvent() { // 0c
1786         int ev, spec;
1787
1788         ev   = a0 & 0xff;
1789         spec = (a0 >> 8) & 0xff;
1790
1791 #ifdef PSXBIOS_LOG
1792         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1793 #endif
1794
1795         Event[ev][spec].status = EvStACTIVE;
1796
1797         v0 = 1; pc0 = ra;
1798 }
1799
1800 void psxBios_DisableEvent() { // 0d
1801         int ev, spec;
1802
1803         ev   = a0 & 0xff;
1804         spec = (a0 >> 8) & 0xff;
1805
1806 #ifdef PSXBIOS_LOG
1807         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1808 #endif
1809
1810         Event[ev][spec].status = EvStWAIT;
1811
1812         v0 = 1; pc0 = ra;
1813 }
1814
1815 /*
1816  *      long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1817  */
1818
1819 void psxBios_OpenTh() { // 0e
1820         int th;
1821
1822         for (th=1; th<8; th++)
1823         {
1824                 if (Thread[th].status == 0) break;
1825
1826         }
1827         if (th == 8) {
1828                 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1829                 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1830 #ifdef PSXBIOS_LOG
1831                 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1832 #endif
1833                 v0 = 0xffffffff;
1834                 pc0 = ra;
1835                 return;
1836         }
1837 #ifdef PSXBIOS_LOG
1838         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1839 #endif
1840
1841         Thread[th].status = 1;
1842         Thread[th].func    = a0;
1843         Thread[th].reg[29] = a1;
1844         Thread[th].reg[28] = a2;
1845
1846         v0 = th; pc0 = ra;
1847 }
1848
1849 /*
1850  *      int CloseTh(long thread);
1851  */
1852
1853 void psxBios_CloseTh() { // 0f
1854         int th = a0 & 0xff;
1855
1856 #ifdef PSXBIOS_LOG
1857         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1858 #endif
1859
1860         if (Thread[th].status == 0) {
1861                 v0 = 0;
1862         } else {
1863                 Thread[th].status = 0;
1864                 v0 = 1;
1865         }
1866
1867         pc0 = ra;
1868 }
1869
1870 /*
1871  *      int ChangeTh(long thread);
1872  */
1873
1874 void psxBios_ChangeTh() { // 10
1875         int th = a0 & 0xff;
1876
1877 #ifdef PSXBIOS_LOG
1878 //      PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1879 #endif
1880
1881         if (Thread[th].status == 0 || CurThread == th) {
1882                 v0 = 0;
1883
1884                 pc0 = ra;
1885         } else {
1886                 v0 = 1;
1887
1888                 if (Thread[CurThread].status == 2) {
1889                         Thread[CurThread].status = 1;
1890                         Thread[CurThread].func = ra;
1891                         memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1892                 }
1893
1894                 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1895                 pc0 = Thread[th].func;
1896                 Thread[th].status = 2;
1897                 CurThread = th;
1898         }
1899 }
1900
1901 void psxBios_InitPAD() { // 0x12
1902 #ifdef PSXBIOS_LOG
1903         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1904 #endif
1905
1906         pad_buf1 = (char*)Ra0;
1907         pad_buf1len = a1;
1908         pad_buf2 = (char*)Ra2;
1909         pad_buf2len = a3;
1910
1911         v0 = 1; pc0 = ra;
1912 }
1913
1914 void psxBios_StartPAD() { // 13
1915 #ifdef PSXBIOS_LOG
1916         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1917 #endif
1918         pad_stopped = 0;
1919         psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1920         psxRegs.CP0.n.Status |= 0x401;
1921         pc0 = ra;
1922 }
1923
1924 void psxBios_StopPAD() { // 14
1925 #ifdef PSXBIOS_LOG
1926         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1927 #endif
1928         pad_stopped = 1;
1929         if (pad_buf == 0){
1930         pad_buf1 = NULL;
1931         pad_buf2 = NULL;
1932         }
1933         pc0 = ra;
1934 }
1935
1936 void psxBios_PAD_init() { // 15
1937 #ifdef PSXBIOS_LOG
1938         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1939 #endif
1940         if (!(a0 == 0x20000000 || a0 == 0x20000001))
1941         {
1942                 v0 = 0;
1943                 pc0 = ra;
1944                 return;
1945         }
1946         psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1947         pad_buf = (int *)Ra1;
1948         *pad_buf = -1;
1949         psxRegs.CP0.n.Status |= 0x401;
1950         v0 = 2;
1951         pc0 = ra;
1952 }
1953
1954 void psxBios_PAD_dr() { // 16
1955 #ifdef PSXBIOS_LOG
1956         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1957 #endif
1958
1959         v0 = -1; pc0 = ra;
1960 }
1961
1962 void psxBios_ReturnFromException() { // 17
1963         LoadRegs();
1964
1965         pc0 = psxRegs.CP0.n.EPC;
1966         if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1967
1968         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1969                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1970 }
1971
1972 void psxBios_ResetEntryInt() { // 18
1973 #ifdef PSXBIOS_LOG
1974         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1975 #endif
1976
1977         jmp_int = NULL;
1978         pc0 = ra;
1979 }
1980
1981 void psxBios_HookEntryInt() { // 19
1982 #ifdef PSXBIOS_LOG
1983         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1984 #endif
1985
1986         jmp_int = (u32*)Ra0;
1987         pc0 = ra;
1988 }
1989
1990 void psxBios_UnDeliverEvent() { // 0x20
1991         int ev, spec;
1992         int i;
1993
1994         GetEv();
1995         GetSpec();
1996
1997 #ifdef PSXBIOS_LOG
1998         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1999 #endif
2000
2001         if (Event[ev][spec].status == EvStALREADY &&
2002                 Event[ev][spec].mode == EvMdNOINTR)
2003                 Event[ev][spec].status = EvStACTIVE;
2004
2005         pc0 = ra;
2006 }
2007
2008 char ffile[64], *pfile;
2009 int nfile;
2010 static void buopen(int mcd, u8 *ptr, u8 *cfg)
2011 {
2012         int i;
2013         u8 *fptr = ptr;
2014
2015         strcpy(FDesc[1 + mcd].name, Ra0+5);
2016         FDesc[1 + mcd].offset = 0;
2017         FDesc[1 + mcd].mode   = a1;
2018
2019         for (i=1; i<16; i++) {
2020                 fptr += 128;
2021                 if ((*fptr & 0xF0) != 0x50) continue;
2022                 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
2023                 FDesc[1 + mcd].mcfile = i;
2024                 SysPrintf("open %s\n", fptr+0xa);
2025                 v0 = 1 + mcd;
2026                 break;
2027         }
2028         if (a1 & 0x200 && v0 == -1) { /* FCREAT */
2029                 fptr = ptr;
2030                 for (i=1; i<16; i++) {
2031                         int j, xor, nblk = a1 >> 16;
2032                         u8 *pptr, *fptr2;
2033
2034                         fptr += 128;
2035                         if ((*fptr & 0xF0) != 0xa0) continue;
2036
2037                         FDesc[1 + mcd].mcfile = i;
2038                         fptr[0] = 0x51;
2039                         fptr[4] = 0x00;
2040                         fptr[5] = 0x20 * nblk;
2041                         fptr[6] = 0x00;
2042                         fptr[7] = 0x00;
2043                         strcpy(fptr+0xa, FDesc[1 + mcd].name);
2044                         pptr = fptr2 = fptr;
2045                         for(j=2; j<=nblk; j++) {
2046                                 int k;
2047                                 for(i++; i<16; i++) {
2048                                         fptr2 += 128;
2049
2050                                         memset(fptr2, 0, 128);
2051                                         fptr2[0] = j < nblk ? 0x52 : 0x53;
2052                                         pptr[8] = i - 1;
2053                                         pptr[9] = 0;
2054                                         for (k=0, xor=0; k<127; k++) xor^= pptr[k];
2055                                         pptr[127] = xor;
2056                                         pptr = fptr2;
2057                                         break;
2058                                 }
2059                                 /* shouldn't this return ENOSPC if i == 16? */
2060                         }
2061                         pptr[8] = pptr[9] = 0xff;
2062                         for (j=0, xor=0; j<127; j++) xor^= pptr[j];
2063                         pptr[127] = xor;
2064                         SysPrintf("openC %s %d\n", ptr, nblk);
2065                         v0 = 1 + mcd;
2066                         /* just go ahead and resave them all */
2067                         SaveMcd(cfg, ptr, 128, 128 * 15);
2068                         break;
2069                 }
2070                 /* shouldn't this return ENOSPC if i == 16? */
2071         }
2072 }
2073
2074 /*
2075  *      int open(char *name , int mode);
2076  */
2077
2078 void psxBios_open() { // 0x32
2079         int i;
2080         char *ptr;
2081         void *pa0 = Ra0;
2082
2083 #ifdef PSXBIOS_LOG
2084         PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
2085 #endif
2086
2087         v0 = -1;
2088
2089         if (pa0) {
2090                 if (!strncmp(pa0, "bu00", 4)) {
2091                         buopen(1, Mcd1Data, Config.Mcd1);
2092                 }
2093
2094                 if (!strncmp(pa0, "bu10", 4)) {
2095                         buopen(2, Mcd2Data, Config.Mcd2);
2096                 }
2097         }
2098
2099         pc0 = ra;
2100 }
2101
2102 /*
2103  *      int lseek(int fd , int offset , int whence);
2104  */
2105
2106 void psxBios_lseek() { // 0x33
2107 #ifdef PSXBIOS_LOG
2108         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2109 #endif
2110
2111         switch (a2) {
2112                 case 0: // SEEK_SET
2113                         FDesc[a0].offset = a1;
2114                         v0 = a1;
2115 //                      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2116 //                      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2117                         break;
2118
2119                 case 1: // SEEK_CUR
2120                         FDesc[a0].offset+= a1;
2121                         v0 = FDesc[a0].offset;
2122                         break;
2123         }
2124
2125         pc0 = ra;
2126 }
2127
2128
2129 /*
2130  *      int read(int fd , void *buf , int nbytes);
2131  */
2132
2133 void psxBios_read() { // 0x34
2134         char *ptr;
2135         void *pa1 = Ra1;
2136
2137 #ifdef PSXBIOS_LOG
2138         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2139 #endif
2140
2141         v0 = -1;
2142
2143         if (pa1) {
2144                 switch (a0) {
2145                         case 2: buread(pa1, 1, a2); break;
2146                         case 3: buread(pa1, 2, a2); break;
2147                 }
2148         }
2149
2150         pc0 = ra;
2151 }
2152
2153 /*
2154  *      int write(int fd , void *buf , int nbytes);
2155  */
2156
2157 void psxBios_write() { // 0x35/0x03
2158         char *ptr;
2159         void *pa1 = Ra1;
2160
2161 #ifdef PSXBIOS_LOG
2162         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2163 #endif
2164
2165         v0 = -1;
2166         if (!pa1) {
2167                 pc0 = ra;
2168                 return;
2169         }
2170
2171         if (a0 == 1) { // stdout
2172                 char *ptr = pa1;
2173
2174                 v0 = a2;
2175                 while (a2 > 0) {
2176                         SysPrintf("%c", *ptr++); a2--;
2177                 }
2178                 pc0 = ra; return;
2179         }
2180
2181         switch (a0) {
2182                 case 2: buwrite(pa1, 1, a2); break;
2183                 case 3: buwrite(pa1, 2, a2); break;
2184         }
2185
2186         pc0 = ra;
2187 }
2188
2189 /*
2190  *      int close(int fd);
2191  */
2192
2193 void psxBios_close() { // 0x36
2194 #ifdef PSXBIOS_LOG
2195         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2196 #endif
2197
2198         v0 = a0;
2199         pc0 = ra;
2200 }
2201
2202 void psxBios_putchar() { // 3d
2203         SysPrintf("%c", (char)a0);
2204         pc0 = ra;
2205 }
2206
2207 void psxBios_puts() { // 3e/3f
2208         SysPrintf("%s", Ra0);
2209         pc0 = ra;
2210 }
2211
2212 char ffile[64], *pfile;
2213 int nfile;
2214
2215
2216 /* To avoid any issues with different behaviour when using the libc's own strlen instead.
2217  * We want to mimic the PSX's behaviour in this case for bufile. */
2218 static size_t strlen_internal(char* p)
2219 {
2220         size_t size_of_array = 0;
2221         while (*p++) size_of_array++;
2222         return size_of_array;
2223 }
2224
2225 #define bufile(mcd) { \
2226         size_t size_of_name = strlen_internal(dir->name); \
2227         while (nfile < 16) { \
2228                 int match=1; \
2229  \
2230                 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
2231                 nfile++; \
2232                 if ((*ptr & 0xF0) != 0x50) continue; \
2233                 /* Bug link files show up as free block. */ \
2234                 if (!ptr[0xa]) continue; \
2235                 ptr+= 0xa; \
2236                 if (pfile[0] == 0) { \
2237                         strncpy(dir->name, ptr, sizeof(dir->name) - 1); \
2238                         if (size_of_name < sizeof(dir->name)) dir->name[size_of_name] = '\0'; \
2239                 } else for (i=0; i<20; i++) { \
2240                         if (pfile[i] == ptr[i]) { \
2241                                                                 dir->name[i] = ptr[i]; continue; } \
2242                         if (pfile[i] == '?') { \
2243                                 dir->name[i] = ptr[i]; continue; } \
2244                         if (pfile[i] == '*') { \
2245                                 strcpy(dir->name+i, ptr+i); break; } \
2246                         match = 0; break; \
2247                 } \
2248                 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
2249                 if (match == 0) { continue; } \
2250                 dir->size = 8192; \
2251                 v0 = _dir; \
2252                 break; \
2253         } \
2254 }
2255
2256 /*
2257  *      struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2258  */
2259
2260 void psxBios_firstfile() { // 42
2261         struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
2262         void *pa0 = Ra0;
2263         u32 _dir = a1;
2264         char *ptr;
2265         int i;
2266
2267 #ifdef PSXBIOS_LOG
2268         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2269 #endif
2270
2271         v0 = 0;
2272
2273         if (pa0) {
2274                 strcpy(ffile, pa0);
2275                 pfile = ffile+5;
2276                 nfile = 1;
2277                 if (!strncmp(pa0, "bu00", 4)) {
2278                         // firstfile() calls _card_read() internally, so deliver it's event
2279                         DeliverEvent(0x11, 0x2);
2280                         bufile(1);
2281                 } else if (!strncmp(pa0, "bu10", 4)) {
2282                         // firstfile() calls _card_read() internally, so deliver it's event
2283                         DeliverEvent(0x11, 0x2);
2284                         bufile(2);
2285                 }
2286         }
2287
2288         pc0 = ra;
2289 }
2290
2291 /*
2292  *      struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2293  */
2294
2295 void psxBios_nextfile() { // 43
2296         struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2297         u32 _dir = a0;
2298         char *ptr;
2299         int i;
2300
2301 #ifdef PSXBIOS_LOG
2302         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2303 #endif
2304
2305         v0 = 0;
2306
2307         if (!strncmp(ffile, "bu00", 4)) {
2308                 bufile(1);
2309         }
2310
2311         if (!strncmp(ffile, "bu10", 4)) {
2312                 bufile(2);
2313         }
2314
2315         pc0 = ra;
2316 }
2317
2318 #define burename(mcd) { \
2319         for (i=1; i<16; i++) { \
2320                 int namelen, j, xor = 0; \
2321                 ptr = Mcd##mcd##Data + 128 * i; \
2322                 if ((*ptr & 0xF0) != 0x50) continue; \
2323                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2324                 namelen = strlen(Ra1+5); \
2325                 memcpy(ptr+0xa, Ra1+5, namelen); \
2326                 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2327                 for (j=0; j<127; j++) xor^= ptr[j]; \
2328                 ptr[127] = xor; \
2329                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2330                 v0 = 1; \
2331                 break; \
2332         } \
2333 }
2334
2335 /*
2336  *      int rename(char *old, char *new);
2337  */
2338
2339 void psxBios_rename() { // 44
2340         void *pa0 = Ra0;
2341         void *pa1 = Ra1;
2342         char *ptr;
2343         int i;
2344
2345 #ifdef PSXBIOS_LOG
2346         PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2347 #endif
2348
2349         v0 = 0;
2350
2351         if (pa0 && pa1) {
2352                 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2353                         burename(1);
2354                 }
2355
2356                 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2357                         burename(2);
2358                 }
2359         }
2360
2361         pc0 = ra;
2362 }
2363
2364
2365 #define budelete(mcd) { \
2366         for (i=1; i<16; i++) { \
2367                 ptr = Mcd##mcd##Data + 128 * i; \
2368                 if ((*ptr & 0xF0) != 0x50) continue; \
2369                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2370                 *ptr = (*ptr & 0xf) | 0xA0; \
2371                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2372                 SysPrintf("delete %s\n", ptr+0xa); \
2373                 v0 = 1; \
2374                 break; \
2375         } \
2376 }
2377
2378 /*
2379  *      int delete(char *name);
2380  */
2381
2382 void psxBios_delete() { // 45
2383         void *pa0 = Ra0;
2384         char *ptr;
2385         int i;
2386
2387 #ifdef PSXBIOS_LOG
2388         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2389 #endif
2390
2391         v0 = 0;
2392
2393         if (pa0) {
2394                 if (!strncmp(pa0, "bu00", 4)) {
2395                         budelete(1);
2396                 }
2397
2398                 if (!strncmp(pa0, "bu10", 4)) {
2399                         budelete(2);
2400                 }
2401         }
2402
2403         pc0 = ra;
2404 }
2405
2406 void psxBios_InitCARD() { // 4a
2407 #ifdef PSXBIOS_LOG
2408         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2409 #endif
2410
2411         CardState = 0;
2412
2413         pc0 = ra;
2414 }
2415
2416 void psxBios_StartCARD() { // 4b
2417 #ifdef PSXBIOS_LOG
2418         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2419 #endif
2420
2421         if (CardState == 0) CardState = 1;
2422
2423         pc0 = ra;
2424 }
2425
2426 void psxBios_StopCARD() { // 4c
2427 #ifdef PSXBIOS_LOG
2428         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2429 #endif
2430
2431         if (CardState == 1) CardState = 0;
2432
2433         pc0 = ra;
2434 }
2435
2436 void psxBios__card_write() { // 0x4e
2437         void *pa2 = Ra2;
2438         int port;
2439
2440 #ifdef PSXBIOS_LOG
2441         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2442 #endif
2443         /* Function also accepts sector 400h (a bug) */
2444         if (!(a1 <= 0x400))
2445         {
2446                 /* Invalid sectors */
2447                 v0 = 0; pc0 = ra;
2448                 return;
2449         }
2450         card_active_chan = a0;
2451         port = a0 >> 4;
2452
2453         if (pa2) {
2454                 if (port == 0) {
2455                         memcpy(Mcd1Data + a1 * 128, pa2, 128);
2456                         SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2457                 } else {
2458                         memcpy(Mcd2Data + a1 * 128, pa2, 128);
2459                         SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2460                 }
2461         }
2462
2463         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2464 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2465
2466         v0 = 1; pc0 = ra;
2467 }
2468
2469 void psxBios__card_read() { // 0x4f
2470         void *pa2 = Ra2;
2471         int port;
2472
2473 #ifdef PSXBIOS_LOG
2474         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2475 #endif
2476         /* Function also accepts sector 400h (a bug) */
2477         if (!(a1 <= 0x400))
2478         {
2479                 /* Invalid sectors */
2480                 v0 = 0; pc0 = ra;
2481                 return;
2482         }
2483         card_active_chan = a0;
2484         port = a0 >> 4;
2485
2486         if (pa2) {
2487                 if (port == 0) {
2488                         memcpy(pa2, Mcd1Data + a1 * 128, 128);
2489                 } else {
2490                         memcpy(pa2, Mcd2Data + a1 * 128, 128);
2491                 }
2492         }
2493
2494         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2495 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2496
2497         v0 = 1; pc0 = ra;
2498 }
2499
2500 void psxBios__new_card() { // 0x50
2501 #ifdef PSXBIOS_LOG
2502         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2503 #endif
2504
2505         pc0 = ra;
2506 }
2507
2508 /* According to a user, this allows Final Fantasy Tactics to save/load properly */
2509 void psxBios__get_error(void) // 55
2510 {
2511         v0 = 0;
2512         pc0 = ra;
2513 }
2514
2515 void psxBios_Krom2RawAdd() { // 0x51
2516         int i = 0;
2517
2518         const u32 table_8140[][2] = {
2519                 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2520                 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2521                 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2522                 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2523                 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2524                 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2525                 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2526                 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2527                 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2528                 {0xffff, 0}
2529         };
2530
2531         const u32 table_889f[][2] = {
2532                 {0x889f, 0x3d68},  {0x8900, 0x40ec},  {0x897f, 0x4fb0},  {0x8a00, 0x56f4},
2533                 {0x8a7f, 0x65b8},  {0x8b00, 0x6cfc},  {0x8b7f, 0x7bc0},  {0x8c00, 0x8304},
2534                 {0x8c7f, 0x91c8},  {0x8d00, 0x990c},  {0x8d7f, 0xa7d0},  {0x8e00, 0xaf14},
2535                 {0x8e7f, 0xbdd8},  {0x8f00, 0xc51c},  {0x8f7f, 0xd3e0},  {0x9000, 0xdb24},
2536                 {0x907f, 0xe9e8},  {0x9100, 0xf12c},  {0x917f, 0xfff0},  {0x9200, 0x10734},
2537                 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2538                 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2539                 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2540                 {0xffff, 0}
2541         };
2542
2543         if (a0 >= 0x8140 && a0 <= 0x84be) {
2544                 while (table_8140[i][0] <= a0) i++;
2545                 a0 -= table_8140[i - 1][0];
2546                 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2547         } else if (a0 >= 0x889f && a0 <= 0x9872) {
2548                 while (table_889f[i][0] <= a0) i++;
2549                 a0 -= table_889f[i - 1][0];
2550                 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2551         } else {
2552                 v0 = 0xffffffff;
2553         }
2554
2555         pc0 = ra;
2556 }
2557
2558 void psxBios_GetC0Table() { // 56
2559 #ifdef PSXBIOS_LOG
2560         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2561 #endif
2562
2563         v0 = 0x674; pc0 = ra;
2564 }
2565
2566 void psxBios_GetB0Table() { // 57
2567 #ifdef PSXBIOS_LOG
2568         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2569 #endif
2570
2571         v0 = 0x874; pc0 = ra;
2572 }
2573
2574 void psxBios__card_chan() { // 0x58
2575 #ifdef PSXBIOS_LOG
2576         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2577 #endif
2578
2579         v0 = card_active_chan;
2580         pc0 = ra;
2581 }
2582
2583 void psxBios_ChangeClearPad() { // 5b
2584 #ifdef PSXBIOS_LOG
2585         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2586 #endif
2587
2588         pc0 = ra;
2589 }
2590
2591 void psxBios__card_status() { // 5c
2592 #ifdef PSXBIOS_LOG
2593         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5c], a0);
2594 #endif
2595
2596         v0 = 1;
2597         pc0 = ra;
2598 }
2599
2600 /* System calls C0 */
2601
2602 /*
2603  * int SysEnqIntRP(int index , long *queue);
2604  */
2605
2606 void psxBios_SysEnqIntRP() { // 02
2607 #ifdef PSXBIOS_LOG
2608         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2609 #endif
2610
2611         SysIntRP[a0] = a1;
2612
2613         v0 = 0; pc0 = ra;
2614 }
2615
2616 /*
2617  * int SysDeqIntRP(int index , long *queue);
2618  */
2619
2620 void psxBios_SysDeqIntRP() { // 03
2621 #ifdef PSXBIOS_LOG
2622         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2623 #endif
2624
2625         SysIntRP[a0] = 0;
2626
2627         v0 = 0; pc0 = ra;
2628 }
2629
2630 void psxBios_ChangeClearRCnt() { // 0a
2631         u32 *ptr;
2632
2633 #ifdef PSXBIOS_LOG
2634         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2635 #endif
2636
2637         ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2638         v0 = *ptr;
2639         *ptr = a1;
2640
2641 //      psxRegs.CP0.n.Status|= 0x404;
2642         pc0 = ra;
2643 }
2644
2645 void psxBios_dummy() {
2646 #ifdef PSXBIOS_LOG
2647         PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2648 #endif
2649         pc0 = ra;
2650 }
2651
2652 void (*biosA0[256])();
2653 void (*biosB0[256])();
2654 void (*biosC0[256])();
2655
2656 #include "sjisfont.h"
2657
2658 void psxBiosInit() {
2659         u32 base, size;
2660         u32 *ptr;
2661         int i;
2662         uLongf len;
2663
2664         for(i = 0; i < 256; i++) {
2665                 biosA0[i] = NULL;
2666                 biosB0[i] = NULL;
2667                 biosC0[i] = NULL;
2668         }
2669         biosA0[0x3e] = psxBios_puts;
2670         biosA0[0x3f] = psxBios_printf;
2671
2672         biosB0[0x3d] = psxBios_putchar;
2673         biosB0[0x3f] = psxBios_puts;
2674
2675         if (!Config.HLE) return;
2676
2677         for(i = 0; i < 256; i++) {
2678                 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2679                 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2680                 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2681         }
2682
2683         biosA0[0x00] = psxBios_open;
2684         biosA0[0x01] = psxBios_lseek;
2685         biosA0[0x02] = psxBios_read;
2686         biosA0[0x03] = psxBios_write;
2687         biosA0[0x04] = psxBios_close;
2688         //biosA0[0x05] = psxBios_ioctl;
2689         //biosA0[0x06] = psxBios_exit;
2690         //biosA0[0x07] = psxBios_sys_a0_07;
2691         biosA0[0x08] = psxBios_getc;
2692         biosA0[0x09] = psxBios_putc;
2693         biosA0[0x0a] = psxBios_todigit;
2694         //biosA0[0x0b] = psxBios_atof;
2695         //biosA0[0x0c] = psxBios_strtoul;
2696         //biosA0[0x0d] = psxBios_strtol;
2697         biosA0[0x0e] = psxBios_abs;
2698         biosA0[0x0f] = psxBios_labs;
2699         biosA0[0x10] = psxBios_atoi;
2700         biosA0[0x11] = psxBios_atol;
2701         //biosA0[0x12] = psxBios_atob;
2702         biosA0[0x13] = psxBios_setjmp;
2703         biosA0[0x14] = psxBios_longjmp;
2704         biosA0[0x15] = psxBios_strcat;
2705         biosA0[0x16] = psxBios_strncat;
2706         biosA0[0x17] = psxBios_strcmp;
2707         biosA0[0x18] = psxBios_strncmp;
2708         biosA0[0x19] = psxBios_strcpy;
2709         biosA0[0x1a] = psxBios_strncpy;
2710         biosA0[0x1b] = psxBios_strlen;
2711         biosA0[0x1c] = psxBios_index;
2712         biosA0[0x1d] = psxBios_rindex;
2713         biosA0[0x1e] = psxBios_strchr;
2714         biosA0[0x1f] = psxBios_strrchr;
2715         biosA0[0x20] = psxBios_strpbrk;
2716         biosA0[0x21] = psxBios_strspn;
2717         biosA0[0x22] = psxBios_strcspn;
2718         biosA0[0x23] = psxBios_strtok;
2719         biosA0[0x24] = psxBios_strstr;
2720         biosA0[0x25] = psxBios_toupper;
2721         biosA0[0x26] = psxBios_tolower;
2722         biosA0[0x27] = psxBios_bcopy;
2723         biosA0[0x28] = psxBios_bzero;
2724         biosA0[0x29] = psxBios_bcmp;
2725         biosA0[0x2a] = psxBios_memcpy;
2726         biosA0[0x2b] = psxBios_memset;
2727         biosA0[0x2c] = psxBios_memmove;
2728         biosA0[0x2d] = psxBios_memcmp;
2729         biosA0[0x2e] = psxBios_memchr;
2730         biosA0[0x2f] = psxBios_rand;
2731         biosA0[0x30] = psxBios_srand;
2732         biosA0[0x31] = psxBios_qsort;
2733         //biosA0[0x32] = psxBios_strtod;
2734         biosA0[0x33] = psxBios_malloc;
2735         biosA0[0x34] = psxBios_free;
2736         //biosA0[0x35] = psxBios_lsearch;
2737         //biosA0[0x36] = psxBios_bsearch;
2738         biosA0[0x37] = psxBios_calloc;
2739         biosA0[0x38] = psxBios_realloc;
2740         biosA0[0x39] = psxBios_InitHeap;
2741         //biosA0[0x3a] = psxBios__exit;
2742         biosA0[0x3b] = psxBios_getchar;
2743         biosA0[0x3c] = psxBios_putchar;
2744         //biosA0[0x3d] = psxBios_gets;
2745         //biosA0[0x40] = psxBios_sys_a0_40;
2746         //biosA0[0x41] = psxBios_LoadTest;
2747         biosA0[0x42] = psxBios_Load;
2748         biosA0[0x43] = psxBios_Exec;
2749         biosA0[0x44] = psxBios_FlushCache;
2750         //biosA0[0x45] = psxBios_InstallInterruptHandler;
2751         biosA0[0x46] = psxBios_GPU_dw;
2752         biosA0[0x47] = psxBios_mem2vram;
2753         biosA0[0x48] = psxBios_SendGPU;
2754         biosA0[0x49] = psxBios_GPU_cw;
2755         biosA0[0x4a] = psxBios_GPU_cwb;
2756         biosA0[0x4b] = psxBios_GPU_SendPackets;
2757         biosA0[0x4c] = psxBios_sys_a0_4c;
2758         biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2759         //biosA0[0x4e] = psxBios_GPU_sync;
2760         //biosA0[0x4f] = psxBios_sys_a0_4f;
2761         //biosA0[0x50] = psxBios_sys_a0_50;
2762         biosA0[0x51] = psxBios_LoadExec;
2763         //biosA0[0x52] = psxBios_GetSysSp;
2764         //biosA0[0x53] = psxBios_sys_a0_53;
2765         //biosA0[0x54] = psxBios__96_init_a54;
2766         //biosA0[0x55] = psxBios__bu_init_a55;
2767         //biosA0[0x56] = psxBios__96_remove_a56;
2768         //biosA0[0x57] = psxBios_sys_a0_57;
2769         //biosA0[0x58] = psxBios_sys_a0_58;
2770         //biosA0[0x59] = psxBios_sys_a0_59;
2771         //biosA0[0x5a] = psxBios_sys_a0_5a;
2772         //biosA0[0x5b] = psxBios_dev_tty_init;
2773         //biosA0[0x5c] = psxBios_dev_tty_open;
2774         //biosA0[0x5d] = psxBios_sys_a0_5d;
2775         //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2776         //biosA0[0x5f] = psxBios_dev_cd_open;
2777         //biosA0[0x60] = psxBios_dev_cd_read;
2778         //biosA0[0x61] = psxBios_dev_cd_close;
2779         //biosA0[0x62] = psxBios_dev_cd_firstfile;
2780         //biosA0[0x63] = psxBios_dev_cd_nextfile;
2781         //biosA0[0x64] = psxBios_dev_cd_chdir;
2782         //biosA0[0x65] = psxBios_dev_card_open;
2783         //biosA0[0x66] = psxBios_dev_card_read;
2784         //biosA0[0x67] = psxBios_dev_card_write;
2785         //biosA0[0x68] = psxBios_dev_card_close;
2786         //biosA0[0x69] = psxBios_dev_card_firstfile;
2787         //biosA0[0x6a] = psxBios_dev_card_nextfile;
2788         //biosA0[0x6b] = psxBios_dev_card_erase;
2789         //biosA0[0x6c] = psxBios_dev_card_undelete;
2790         //biosA0[0x6d] = psxBios_dev_card_format;
2791         //biosA0[0x6e] = psxBios_dev_card_rename;
2792         //biosA0[0x6f] = psxBios_dev_card_6f;
2793         biosA0[0x70] = psxBios__bu_init;
2794         biosA0[0x71] = psxBios__96_init;
2795         biosA0[0x72] = psxBios__96_remove;
2796         //biosA0[0x73] = psxBios_sys_a0_73;
2797         //biosA0[0x74] = psxBios_sys_a0_74;
2798         //biosA0[0x75] = psxBios_sys_a0_75;
2799         //biosA0[0x76] = psxBios_sys_a0_76;
2800         //biosA0[0x77] = psxBios_sys_a0_77;
2801         //biosA0[0x78] = psxBios__96_CdSeekL;
2802         //biosA0[0x79] = psxBios_sys_a0_79;
2803         //biosA0[0x7a] = psxBios_sys_a0_7a;
2804         //biosA0[0x7b] = psxBios_sys_a0_7b;
2805         //biosA0[0x7c] = psxBios__96_CdGetStatus;
2806         //biosA0[0x7d] = psxBios_sys_a0_7d;
2807         //biosA0[0x7e] = psxBios__96_CdRead;
2808         //biosA0[0x7f] = psxBios_sys_a0_7f;
2809         //biosA0[0x80] = psxBios_sys_a0_80;
2810         //biosA0[0x81] = psxBios_sys_a0_81;
2811         //biosA0[0x82] = psxBios_sys_a0_82;
2812         //biosA0[0x83] = psxBios_sys_a0_83;
2813         //biosA0[0x84] = psxBios_sys_a0_84;
2814         //biosA0[0x85] = psxBios__96_CdStop;
2815         //biosA0[0x86] = psxBios_sys_a0_86;
2816         //biosA0[0x87] = psxBios_sys_a0_87;
2817         //biosA0[0x88] = psxBios_sys_a0_88;
2818         //biosA0[0x89] = psxBios_sys_a0_89;
2819         //biosA0[0x8a] = psxBios_sys_a0_8a;
2820         //biosA0[0x8b] = psxBios_sys_a0_8b;
2821         //biosA0[0x8c] = psxBios_sys_a0_8c;
2822         //biosA0[0x8d] = psxBios_sys_a0_8d;
2823         //biosA0[0x8e] = psxBios_sys_a0_8e;
2824         //biosA0[0x8f] = psxBios_sys_a0_8f;
2825         //biosA0[0x90] = psxBios_sys_a0_90;
2826         //biosA0[0x91] = psxBios_sys_a0_91;
2827         //biosA0[0x92] = psxBios_sys_a0_92;
2828         //biosA0[0x93] = psxBios_sys_a0_93;
2829         //biosA0[0x94] = psxBios_sys_a0_94;
2830         //biosA0[0x95] = psxBios_sys_a0_95;
2831         //biosA0[0x96] = psxBios_AddCDROMDevice;
2832         //biosA0[0x97] = psxBios_AddMemCardDevide;
2833         //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2834         //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2835         //biosA0[0x9a] = psxBios_sys_a0_9a;
2836         //biosA0[0x9b] = psxBios_sys_a0_9b;
2837         //biosA0[0x9c] = psxBios_SetConf;
2838         //biosA0[0x9d] = psxBios_GetConf;
2839         //biosA0[0x9e] = psxBios_sys_a0_9e;
2840         biosA0[0x9f] = psxBios_SetMem;
2841         //biosA0[0xa0] = psxBios__boot;
2842         //biosA0[0xa1] = psxBios_SystemError;
2843         //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2844         //biosA0[0xa3] = psxBios_DequeueCdIntr;
2845         //biosA0[0xa4] = psxBios_sys_a0_a4;
2846         //biosA0[0xa5] = psxBios_ReadSector;
2847         //biosA0[0xa6] = psxBios_get_cd_status;
2848         //biosA0[0xa7] = psxBios_bufs_cb_0;
2849         //biosA0[0xa8] = psxBios_bufs_cb_1;
2850         //biosA0[0xa9] = psxBios_bufs_cb_2;
2851         //biosA0[0xaa] = psxBios_bufs_cb_3;
2852         biosA0[0xab] = psxBios__card_info;
2853         biosA0[0xac] = psxBios__card_load;
2854         //biosA0[0axd] = psxBios__card_auto;
2855         //biosA0[0xae] = psxBios_bufs_cd_4;
2856         //biosA0[0xaf] = psxBios_sys_a0_af;
2857         //biosA0[0xb0] = psxBios_sys_a0_b0;
2858         //biosA0[0xb1] = psxBios_sys_a0_b1;
2859         //biosA0[0xb2] = psxBios_do_a_long_jmp
2860         //biosA0[0xb3] = psxBios_sys_a0_b3;
2861         //biosA0[0xb4] = psxBios_sub_function;
2862 //*******************B0 CALLS****************************
2863         //biosB0[0x00] = psxBios_SysMalloc;
2864         //biosB0[0x01] = psxBios_sys_b0_01;
2865         biosB0[0x02] = psxBios_SetRCnt;
2866         biosB0[0x03] = psxBios_GetRCnt;
2867         biosB0[0x04] = psxBios_StartRCnt;
2868         biosB0[0x05] = psxBios_StopRCnt;
2869         biosB0[0x06] = psxBios_ResetRCnt;
2870         biosB0[0x07] = psxBios_DeliverEvent;
2871         biosB0[0x08] = psxBios_OpenEvent;
2872         biosB0[0x09] = psxBios_CloseEvent;
2873         biosB0[0x0a] = psxBios_WaitEvent;
2874         biosB0[0x0b] = psxBios_TestEvent;
2875         biosB0[0x0c] = psxBios_EnableEvent;
2876         biosB0[0x0d] = psxBios_DisableEvent;
2877         biosB0[0x0e] = psxBios_OpenTh;
2878         biosB0[0x0f] = psxBios_CloseTh;
2879         biosB0[0x10] = psxBios_ChangeTh;
2880         //biosB0[0x11] = psxBios_psxBios_b0_11;
2881         biosB0[0x12] = psxBios_InitPAD;
2882         biosB0[0x13] = psxBios_StartPAD;
2883         biosB0[0x14] = psxBios_StopPAD;
2884         biosB0[0x15] = psxBios_PAD_init;
2885         biosB0[0x16] = psxBios_PAD_dr;
2886         biosB0[0x17] = psxBios_ReturnFromException;
2887         biosB0[0x18] = psxBios_ResetEntryInt;
2888         biosB0[0x19] = psxBios_HookEntryInt;
2889         //biosB0[0x1a] = psxBios_sys_b0_1a;
2890         //biosB0[0x1b] = psxBios_sys_b0_1b;
2891         //biosB0[0x1c] = psxBios_sys_b0_1c;
2892         //biosB0[0x1d] = psxBios_sys_b0_1d;
2893         //biosB0[0x1e] = psxBios_sys_b0_1e;
2894         //biosB0[0x1f] = psxBios_sys_b0_1f;
2895         biosB0[0x20] = psxBios_UnDeliverEvent;
2896         //biosB0[0x21] = psxBios_sys_b0_21;
2897         //biosB0[0x22] = psxBios_sys_b0_22;
2898         //biosB0[0x23] = psxBios_sys_b0_23;
2899         //biosB0[0x24] = psxBios_sys_b0_24;
2900         //biosB0[0x25] = psxBios_sys_b0_25;
2901         //biosB0[0x26] = psxBios_sys_b0_26;
2902         //biosB0[0x27] = psxBios_sys_b0_27;
2903         //biosB0[0x28] = psxBios_sys_b0_28;
2904         //biosB0[0x29] = psxBios_sys_b0_29;
2905         //biosB0[0x2a] = psxBios_sys_b0_2a;
2906         //biosB0[0x2b] = psxBios_sys_b0_2b;
2907         //biosB0[0x2c] = psxBios_sys_b0_2c;
2908         //biosB0[0x2d] = psxBios_sys_b0_2d;
2909         //biosB0[0x2e] = psxBios_sys_b0_2e;
2910         //biosB0[0x2f] = psxBios_sys_b0_2f;
2911         //biosB0[0x30] = psxBios_sys_b0_30;
2912         //biosB0[0x31] = psxBios_sys_b0_31;
2913         biosB0[0x32] = psxBios_open;
2914         biosB0[0x33] = psxBios_lseek;
2915         biosB0[0x34] = psxBios_read;
2916         biosB0[0x35] = psxBios_write;
2917         biosB0[0x36] = psxBios_close;
2918         //biosB0[0x37] = psxBios_ioctl;
2919         //biosB0[0x38] = psxBios_exit;
2920         //biosB0[0x39] = psxBios_sys_b0_39;
2921         //biosB0[0x3a] = psxBios_getc;
2922         //biosB0[0x3b] = psxBios_putc;
2923         biosB0[0x3c] = psxBios_getchar;
2924         //biosB0[0x3e] = psxBios_gets;
2925         //biosB0[0x40] = psxBios_cd;
2926         biosB0[0x41] = psxBios_format;
2927         biosB0[0x42] = psxBios_firstfile;
2928         biosB0[0x43] = psxBios_nextfile;
2929         biosB0[0x44] = psxBios_rename;
2930         biosB0[0x45] = psxBios_delete;
2931         //biosB0[0x46] = psxBios_undelete;
2932         //biosB0[0x47] = psxBios_AddDevice;
2933         //biosB0[0x48] = psxBios_RemoteDevice;
2934         //biosB0[0x49] = psxBios_PrintInstalledDevices;
2935         biosB0[0x4a] = psxBios_InitCARD;
2936         biosB0[0x4b] = psxBios_StartCARD;
2937         biosB0[0x4c] = psxBios_StopCARD;
2938         //biosB0[0x4d] = psxBios_sys_b0_4d;
2939         biosB0[0x4e] = psxBios__card_write;
2940         biosB0[0x4f] = psxBios__card_read;
2941         biosB0[0x50] = psxBios__new_card;
2942         biosB0[0x51] = psxBios_Krom2RawAdd;
2943         //biosB0[0x52] = psxBios_sys_b0_52;
2944         //biosB0[0x53] = psxBios_sys_b0_53;
2945         //biosB0[0x54] = psxBios__get_errno;
2946         biosB0[0x55] = psxBios__get_error;
2947         biosB0[0x56] = psxBios_GetC0Table;
2948         biosB0[0x57] = psxBios_GetB0Table;
2949         biosB0[0x58] = psxBios__card_chan;
2950         //biosB0[0x59] = psxBios_sys_b0_59;
2951         //biosB0[0x5a] = psxBios_sys_b0_5a;
2952         biosB0[0x5b] = psxBios_ChangeClearPad;
2953         biosB0[0x5c] = psxBios__card_status;
2954         //biosB0[0x5d] = psxBios__card_wait;
2955 //*******************C0 CALLS****************************
2956         //biosC0[0x00] = psxBios_InitRCnt;
2957         //biosC0[0x01] = psxBios_InitException;
2958         biosC0[0x02] = psxBios_SysEnqIntRP;
2959         biosC0[0x03] = psxBios_SysDeqIntRP;
2960         //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2961         //biosC0[0x05] = psxBios_get_free_TCB_slot;
2962         //biosC0[0x06] = psxBios_ExceptionHandler;
2963         //biosC0[0x07] = psxBios_InstallExeptionHandler;
2964         //biosC0[0x08] = psxBios_SysInitMemory;
2965         //biosC0[0x09] = psxBios_SysInitKMem;
2966         biosC0[0x0a] = psxBios_ChangeClearRCnt;
2967         //biosC0[0x0b] = psxBios_SystemError;
2968         //biosC0[0x0c] = psxBios_InitDefInt;
2969         //biosC0[0x0d] = psxBios_sys_c0_0d;
2970         //biosC0[0x0e] = psxBios_sys_c0_0e;
2971         //biosC0[0x0f] = psxBios_sys_c0_0f;
2972         //biosC0[0x10] = psxBios_sys_c0_10;
2973         //biosC0[0x11] = psxBios_sys_c0_11;
2974         //biosC0[0x12] = psxBios_InstallDevices;
2975         //biosC0[0x13] = psxBios_FlushStfInOutPut;
2976         //biosC0[0x14] = psxBios_sys_c0_14;
2977         //biosC0[0x15] = psxBios__cdevinput;
2978         //biosC0[0x16] = psxBios__cdevscan;
2979         //biosC0[0x17] = psxBios__circgetc;
2980         //biosC0[0x18] = psxBios__circputc;
2981         //biosC0[0x19] = psxBios_ioabort;
2982         //biosC0[0x1a] = psxBios_sys_c0_1a
2983         //biosC0[0x1b] = psxBios_KernelRedirect;
2984         //biosC0[0x1c] = psxBios_PatchAOTable;
2985 //************** THE END ***************************************
2986 /**/
2987         base = 0x1000;
2988         size = sizeof(EvCB) * 32;
2989         Event = (void *)&psxR[base]; base += size * 6;
2990         memset(Event, 0, size * 6);
2991         HwEV = Event;
2992         EvEV = Event + 32;
2993         RcEV = Event + 32 * 2;
2994         UeEV = Event + 32 * 3;
2995         SwEV = Event + 32 * 4;
2996         ThEV = Event + 32 * 5;
2997
2998         ptr = (u32 *)&psxM[0x0874]; // b0 table
2999         ptr[0] = SWAPu32(0x4c54 - 0x884);
3000
3001         ptr = (u32 *)&psxM[0x0674]; // c0 table
3002         ptr[6] = SWAPu32(0xc80);
3003
3004         memset(SysIntRP, 0, sizeof(SysIntRP));
3005         memset(Thread, 0, sizeof(Thread));
3006         Thread[0].status = 2; // main thread
3007
3008         pad_stopped = 1;
3009         jmp_int = NULL;
3010         pad_buf = NULL;
3011         pad_buf1 = NULL;
3012         pad_buf2 = NULL;
3013         pad_buf1len = pad_buf2len = 0;
3014         heap_addr = NULL;
3015         heap_end = NULL;
3016         heap_size = 0;
3017         CardState = -1;
3018         CurThread = 0;
3019         memset(FDesc, 0, sizeof(FDesc));
3020         card_active_chan = 0;
3021
3022         psxMu32ref(0x0150) = SWAPu32(0x160);
3023         psxMu32ref(0x0154) = SWAPu32(0x320);
3024         psxMu32ref(0x0160) = SWAPu32(0x248);
3025         strcpy((char *)&psxM[0x248], "bu");
3026 /*      psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
3027         psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
3028         psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
3029         psxMu32ref(0x09e0) = SWAPu32(0x43d0);
3030         psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
3031 */
3032         // opcode HLE
3033         psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
3034         psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
3035         psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
3036         psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
3037         psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
3038         psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
3039         psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
3040         psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
3041         psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
3042         psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
3043
3044         // initial stack pointer for BIOS interrupt
3045         psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
3046
3047         // initial RNG seed
3048         psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
3049
3050         // fonts
3051         len = 0x80000 - 0x66000;
3052         uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
3053         len = 0x80000 - 0x69d68;
3054         uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
3055
3056         // memory size 2 MB
3057         psxHu32ref(0x1060) = SWAPu32(0x00000b88);
3058
3059         hleSoftCall = FALSE;
3060 }
3061
3062 void psxBiosShutdown() {
3063 }
3064
3065 #define psxBios_PADpoll(pad) { \
3066         PAD##pad##_startPoll(pad); \
3067         pad_buf##pad[0] = 0; \
3068         pad_buf##pad[1] = PAD##pad##_poll(0x42); \
3069         if (!(pad_buf##pad[1] & 0x0f)) { \
3070                 bufcount = 32; \
3071         } else { \
3072                 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
3073         } \
3074         PAD##pad##_poll(0); \
3075         i = 2; \
3076         while (bufcount--) { \
3077                 pad_buf##pad[i++] = PAD##pad##_poll(0); \
3078         } \
3079 }
3080
3081 void biosInterrupt() {
3082         int i, bufcount;
3083
3084 //      if (psxHu32(0x1070) & 0x1) { // Vsync
3085                 if (pad_buf != NULL) {
3086                         u32 *buf = (u32*)pad_buf;
3087
3088                         if (!Config.UseNet) {
3089                                 PAD1_startPoll(1);
3090                                 if (PAD1_poll(0x42) == 0x23) {
3091                                         PAD1_poll(0);
3092                                         *buf = PAD1_poll(0) << 8;
3093                                         *buf |= PAD1_poll(0);
3094                                         PAD1_poll(0);
3095                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
3096                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
3097                                 } else {
3098                                         PAD1_poll(0);
3099                                         *buf = PAD1_poll(0) << 8;
3100                                         *buf|= PAD1_poll(0);
3101                                 }
3102
3103                                 PAD2_startPoll(2);
3104                                 if (PAD2_poll(0x42) == 0x23) {
3105                                         PAD2_poll(0);
3106                                         *buf |= PAD2_poll(0) << 24;
3107                                         *buf |= PAD2_poll(0) << 16;
3108                                         PAD2_poll(0);
3109                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
3110                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
3111                                 } else {
3112                                         PAD2_poll(0);
3113                                         *buf |= PAD2_poll(0) << 24;
3114                                         *buf |= PAD2_poll(0) << 16;
3115                                 }
3116                         } else {
3117                                 u16 data;
3118
3119                                 PAD1_startPoll(1);
3120                                 PAD1_poll(0x42);
3121                                 PAD1_poll(0);
3122                                 data = PAD1_poll(0) << 8;
3123                                 data |= PAD1_poll(0);
3124
3125                                 if (NET_sendPadData(&data, 2) == -1)
3126                                         netError();
3127
3128                                 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
3129                                         netError();
3130                                 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3131                                         netError();
3132                         }
3133                 }
3134                 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3135                         psxBios_PADpoll(1);
3136
3137                         if (NET_sendPadData(pad_buf1, i) == -1)
3138                                 netError();
3139
3140                         if (NET_recvPadData(pad_buf1, 1) == -1)
3141                                 netError();
3142                         if (NET_recvPadData(pad_buf2, 2) == -1)
3143                                 netError();
3144                 } else {
3145                         if (!pad_stopped)  {
3146                                 if (pad_buf1) {
3147                                         psxBios_PADpoll(1);
3148                                 }
3149
3150                                 if (pad_buf2) {
3151                                         psxBios_PADpoll(2);
3152                                 }
3153                         }
3154                 }
3155
3156         if (psxHu32(0x1070) & 0x1) { // Vsync
3157                 if (RcEV[3][1].status == EvStACTIVE) {
3158                         softCall(RcEV[3][1].fhandler);
3159 //                      hwWrite32(0x1f801070, ~(1));
3160                 }
3161         }
3162
3163         if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3164                 int i;
3165
3166                 for (i = 0; i < 3; i++) {
3167                         if (psxHu32(0x1070) & (1 << (i + 4))) {
3168                                 if (RcEV[i][1].status == EvStACTIVE) {
3169                                         softCall(RcEV[i][1].fhandler);
3170                                 }
3171                                 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3172                         }
3173                 }
3174         }
3175 }
3176
3177 void psxBiosException() {
3178         int i;
3179
3180         switch (psxRegs.CP0.n.Cause & 0x3c) {
3181                 case 0x00: // Interrupt
3182 #ifdef PSXCPU_LOG
3183 //                      PSXCPU_LOG("interrupt\n");
3184 #endif
3185                         SaveRegs();
3186
3187                         sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3188
3189                         biosInterrupt();
3190
3191                         for (i = 0; i < 8; i++) {
3192                                 if (SysIntRP[i]) {
3193                                         u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3194
3195                                         s0 = queue[2];
3196                                         softCall(queue[1]);
3197                                 }
3198                         }
3199
3200                         if (jmp_int != NULL) {
3201                                 int i;
3202
3203                                 psxHwWrite32(0x1f801070, 0xffffffff);
3204
3205                                 ra = jmp_int[0];
3206                                 sp = jmp_int[1];
3207                                 fp = jmp_int[2];
3208                                 for (i = 0; i < 8; i++) // s0-s7
3209                                          psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3210                                 gp = jmp_int[11];
3211
3212                                 v0 = 1;
3213                                 pc0 = ra;
3214                                 return;
3215                         }
3216                         psxHwWrite16(0x1f801070, 0);
3217                         break;
3218
3219                 case 0x20: // Syscall
3220 #ifdef PSXCPU_LOG
3221                         PSXCPU_LOG("syscall exp %x\n", a0);
3222 #endif
3223                         switch (a0) {
3224                                 case 1: // EnterCritical - disable irq's
3225                                         /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3226                                         v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3227                                         psxRegs.CP0.n.Status &= ~0x404;
3228                                         break;
3229
3230                                 case 2: // ExitCritical - enable irq's
3231                                         psxRegs.CP0.n.Status |= 0x404;
3232                                         break;
3233                                 /* Normally this should cover SYS(00h, SYS(04h but they don't do anything relevant so... */
3234                                 default:
3235                                         break;
3236                         }
3237                         pc0 = psxRegs.CP0.n.EPC + 4;
3238
3239                         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3240                                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3241                         return;
3242
3243                 default:
3244 #ifdef PSXCPU_LOG
3245                         PSXCPU_LOG("unknown bios exception!\n");
3246 #endif
3247                         break;
3248         }
3249
3250         pc0 = psxRegs.CP0.n.EPC;
3251         if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3252
3253         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3254                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3255 }
3256
3257 #define bfreeze(ptr, size) { \
3258         if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3259         if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3260         base += size; \
3261 }
3262
3263 #define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3264 #define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3265
3266 #define bfreezepsxMptr(ptr, type) { \
3267         if (Mode == 1) { \
3268                 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3269                 else psxRu32ref(base) = 0; \
3270         } else { \
3271                 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3272                 else (ptr) = NULL; \
3273         } \
3274         base += sizeof(u32); \
3275 }
3276
3277 void psxBiosFreeze(int Mode) {
3278         u32 base = 0x40000;
3279
3280         pad_stopped = 0;
3281         bfreezepsxMptr(jmp_int, u32);
3282         bfreezepsxMptr(pad_buf, int);
3283         bfreezepsxMptr(pad_buf1, char);
3284         bfreezepsxMptr(pad_buf2, char);
3285         bfreezepsxMptr(heap_addr, u32);
3286         bfreezel(&pad_buf1len);
3287         bfreezel(&pad_buf2len);
3288         bfreezes(regs);
3289         bfreezes(SysIntRP);
3290         bfreezel(&CardState);
3291         bfreezes(Thread);
3292         bfreezel(&CurThread);
3293         bfreezes(FDesc);
3294         bfreezel(&card_active_chan);
3295 }