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_size = size;
1223         heap_end = (u32 *)((u8 *)heap_addr + heap_size);
1224         /* HACKFIX: Commenting out this line fixes GTA2 crash */
1225         //*heap_addr = SWAP32(size | 1);
1226
1227         SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
1228
1229         pc0 = ra;
1230 }
1231
1232 void psxBios_getchar() { //0x3b
1233         v0 = getchar(); pc0 = ra;
1234 }
1235
1236 void psxBios_printf() { // 0x3f
1237         char tmp[1024];
1238         char tmp2[1024];
1239         u32 save[4];
1240         char *ptmp = tmp;
1241         int n=1, i=0, j;
1242         void *psp;
1243
1244         psp = PSXM(sp);
1245         if (psp) {
1246                 memcpy(save, psp, 4 * 4);
1247                 psxMu32ref(sp) = SWAP32((u32)a0);
1248                 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1249                 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1250                 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1251         }
1252
1253         while (Ra0[i]) {
1254                 switch (Ra0[i]) {
1255                         case '%':
1256                                 j = 0;
1257                                 tmp2[j++] = '%';
1258 _start:
1259                                 switch (Ra0[++i]) {
1260                                         case '.':
1261                                         case 'l':
1262                                                 tmp2[j++] = Ra0[i]; goto _start;
1263                                         default:
1264                                                 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1265                                                         tmp2[j++] = Ra0[i];
1266                                                         goto _start;
1267                                                 }
1268                                                 break;
1269                                 }
1270                                 tmp2[j++] = Ra0[i];
1271                                 tmp2[j] = 0;
1272
1273                                 switch (Ra0[i]) {
1274                                         case 'f': case 'F':
1275                                                 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1276                                         case 'a': case 'A':
1277                                         case 'e': case 'E':
1278                                         case 'g': case 'G':
1279                                                 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1280                                         case 'p':
1281                                         case 'i': case 'u':
1282                                         case 'd': case 'D':
1283                                         case 'o': case 'O':
1284                                         case 'x': case 'X':
1285                                                 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1286                                         case 'c':
1287                                                 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1288                                         case 's':
1289                                                 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1290                                         case '%':
1291                                                 *ptmp++ = Ra0[i]; break;
1292                                 }
1293                                 i++;
1294                                 break;
1295                         default:
1296                                 *ptmp++ = Ra0[i++];
1297                 }
1298         }
1299         *ptmp = 0;
1300
1301         if (psp)
1302                 memcpy(psp, save, 4 * 4);
1303
1304         SysPrintf("%s", tmp);
1305
1306         pc0 = ra;
1307 }
1308
1309 void psxBios_format() { // 0x41
1310         if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1311         {
1312                 CreateMcd(Config.Mcd1);
1313                 LoadMcd(1, Config.Mcd1);
1314                 v0 = 1;
1315         }
1316         else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1317         {
1318                 CreateMcd(Config.Mcd2);
1319                 LoadMcd(2, Config.Mcd2);
1320                 v0 = 1;
1321         }
1322         else
1323         {
1324                 v0 = 0;
1325         }
1326         pc0 = ra;
1327 }
1328
1329 /*
1330  *      long Load(char *name, struct EXEC *header);
1331  */
1332
1333 void psxBios_Load() { // 0x42
1334         EXE_HEADER eheader;
1335         void *pa1;
1336
1337 #ifdef PSXBIOS_LOG
1338         PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1339 #endif
1340
1341         pa1 = Ra1;
1342         if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1343                 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
1344                 v0 = 1;
1345         } else v0 = 0;
1346
1347         pc0 = ra;
1348 }
1349
1350 /*
1351  *      int Exec(struct EXEC *header , int argc , char **argv);
1352  */
1353
1354 void psxBios_Exec() { // 43
1355         EXEC *header = (EXEC*)Ra0;
1356         u32 tmp;
1357
1358 #ifdef PSXBIOS_LOG
1359         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1360 #endif
1361
1362         header->_sp = sp;
1363         header->_fp = fp;
1364         header->_sp = sp;
1365         header->_gp = gp;
1366         header->ret = ra;
1367         header->base = s0;
1368
1369         if (header->S_addr != 0) {
1370                 tmp = header->S_addr + header->s_size;
1371                 sp = tmp;
1372                 fp = sp;
1373         }
1374
1375         gp = header->gp0;
1376
1377         s0 = a0;
1378
1379         a0 = a1;
1380         a1 = a2;
1381
1382         ra = 0x8000;
1383         pc0 = header->_pc0;
1384 }
1385
1386 void psxBios_FlushCache() { // 44
1387 #ifdef PSXBIOS_LOG
1388         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1389 #endif
1390
1391         pc0 = ra;
1392 }
1393
1394 void psxBios_GPU_dw() { // 0x46
1395         int size;
1396         s32 *ptr;
1397
1398 #ifdef PSXBIOS_LOG
1399         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1400 #endif
1401
1402         GPU_writeData(0xa0000000);
1403         GPU_writeData((a1<<16)|(a0&0xffff));
1404         GPU_writeData((a3<<16)|(a2&0xffff));
1405         size = (a2*a3+1)/2;
1406         ptr = (s32*)PSXM(Rsp[4]);  //that is correct?
1407         do {
1408                 GPU_writeData(SWAP32(*ptr));
1409                 ptr++;
1410         } while(--size);
1411
1412         pc0 = ra;
1413 }
1414
1415 void psxBios_mem2vram() { // 0x47
1416         int size;
1417
1418         GPU_writeData(0xa0000000);
1419         GPU_writeData((a1<<16)|(a0&0xffff));
1420         GPU_writeData((a3<<16)|(a2&0xffff));
1421         size = (a2*a3+1)/2;
1422         GPU_writeStatus(0x04000002);
1423         psxHwWrite32(0x1f8010f4,0);
1424         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1425         psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1426         psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1427         psxHwWrite32(0x1f8010a8,0x01000201);
1428
1429         pc0 = ra;
1430 }
1431
1432 void psxBios_SendGPU() { // 0x48
1433         GPU_writeStatus(a0);
1434         gpuSyncPluginSR();
1435         pc0 = ra;
1436 }
1437
1438 void psxBios_GPU_cw() { // 0x49
1439         GPU_writeData(a0);
1440         pc0 = ra;
1441 }
1442
1443 void psxBios_GPU_cwb() { // 0x4a
1444         s32 *ptr = (s32*)Ra0;
1445         int size = a1;
1446         while(size--) {
1447                 GPU_writeData(SWAP32(*ptr));
1448                 ptr++;
1449         }
1450
1451         pc0 = ra;
1452 }
1453
1454 void psxBios_GPU_SendPackets() { //4b:
1455         GPU_writeStatus(0x04000002);
1456         psxHwWrite32(0x1f8010f4,0);
1457         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1458         psxHwWrite32(0x1f8010a0,a0);
1459         psxHwWrite32(0x1f8010a4,0);
1460         psxHwWrite32(0x1f8010a8,0x010000401);
1461         pc0 = ra;
1462 }
1463
1464 void psxBios_sys_a0_4c() { // 0x4c GPU relate
1465         psxHwWrite32(0x1f8010a8,0x00000401);
1466         GPU_writeData(0x0400000);
1467         GPU_writeData(0x0200000);
1468         GPU_writeData(0x0100000);
1469         v0 = 0x1f801814;
1470         pc0 = ra;
1471 }
1472
1473 void psxBios_GPU_GetGPUStatus() { // 0x4d
1474         v0 = GPU_readStatus();
1475         pc0 = ra;
1476 }
1477
1478 #undef s_addr
1479
1480 void psxBios_LoadExec() { // 51
1481         EXEC *header = (EXEC*)PSXM(0xf000);
1482         u32 s_addr, s_size;
1483
1484 #ifdef PSXBIOS_LOG
1485         PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1486 #endif
1487         s_addr = a1; s_size = a2;
1488
1489         a1 = 0xf000;
1490         psxBios_Load();
1491
1492         header->S_addr = s_addr;
1493         header->s_size = s_size;
1494
1495         a0 = 0xf000; a1 = 0; a2 = 0;
1496         psxBios_Exec();
1497 }
1498
1499 void psxBios__bu_init() { // 70
1500 #ifdef PSXBIOS_LOG
1501         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1502 #endif
1503
1504         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1505         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1506
1507         pc0 = ra;
1508 }
1509
1510 void psxBios__96_init() { // 71
1511 #ifdef PSXBIOS_LOG
1512         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1513 #endif
1514
1515         pc0 = ra;
1516 }
1517
1518 void psxBios__96_remove() { // 72
1519 #ifdef PSXBIOS_LOG
1520         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1521 #endif
1522
1523         pc0 = ra;
1524 }
1525
1526 void psxBios_SetMem() { // 9f
1527         u32 new = psxHu32(0x1060);
1528
1529 #ifdef PSXBIOS_LOG
1530         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1531 #endif
1532
1533         switch(a0) {
1534                 case 2:
1535                         psxHu32ref(0x1060) = SWAP32(new);
1536                         psxMu32ref(0x060) = a0;
1537                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1538                         break;
1539
1540                 case 8:
1541                         psxHu32ref(0x1060) = SWAP32(new | 0x300);
1542                         psxMu32ref(0x060) = a0;
1543                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1544
1545                 default:
1546                         SysPrintf("Effective memory must be 2/8 MBytes\n");
1547                 break;
1548         }
1549
1550         pc0 = ra;
1551 }
1552
1553 void psxBios__card_info() { // ab
1554 #ifdef PSXBIOS_LOG
1555         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1556 #endif
1557         u32 ret;
1558         card_active_chan = a0;
1559
1560         switch (card_active_chan)
1561         {
1562         case 0x00: case 0x01: case 0x02: case 0x03:
1563                 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1564                 break;
1565         case 0x10: case 0x11: case 0x12: case 0x13:
1566                 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1567                 break;
1568         default:
1569 #ifdef PSXBIOS_LOG
1570                 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1571 #endif
1572                 ret = 0x11;
1573                 break;
1574         }
1575
1576 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1577 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1578         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1579         DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
1580
1581         v0 = 1; pc0 = ra;
1582 }
1583
1584 void psxBios__card_load() { // ac
1585 #ifdef PSXBIOS_LOG
1586         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1587 #endif
1588
1589         card_active_chan = a0;
1590
1591 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1592         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1593
1594         v0 = 1; pc0 = ra;
1595 }
1596
1597 /* System calls B0 */
1598
1599 void psxBios_SetRCnt() { // 02
1600 #ifdef PSXBIOS_LOG
1601         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1602 #endif
1603
1604         a0&= 0x3;
1605         if (a0 != 3) {
1606                 u32 mode=0;
1607
1608                 psxRcntWtarget(a0, a1);
1609                 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1610                 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1611                 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1612                 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1613                 else         { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1614
1615                 psxRcntWmode(a0, mode);
1616         }
1617         pc0 = ra;
1618 }
1619
1620 void psxBios_GetRCnt() { // 03
1621 #ifdef PSXBIOS_LOG
1622         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1623 #endif
1624
1625         a0&= 0x3;
1626         if (a0 != 3) v0 = psxRcntRcount(a0);
1627         else v0 = 0;
1628         pc0 = ra;
1629 }
1630
1631 void psxBios_StartRCnt() { // 04
1632 #ifdef PSXBIOS_LOG
1633         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1634 #endif
1635
1636         a0&= 0x3;
1637         if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1638         else psxHu32ref(0x1074)|= SWAPu32(0x1);
1639         v0 = 1; pc0 = ra;
1640 }
1641
1642 void psxBios_StopRCnt() { // 05
1643 #ifdef PSXBIOS_LOG
1644         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1645 #endif
1646
1647         a0&= 0x3;
1648         if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1649         else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1650         pc0 = ra;
1651 }
1652
1653 void psxBios_ResetRCnt() { // 06
1654 #ifdef PSXBIOS_LOG
1655         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1656 #endif
1657
1658         a0&= 0x3;
1659         if (a0 != 3) {
1660                 psxRcntWmode(a0, 0);
1661                 psxRcntWtarget(a0, 0);
1662                 psxRcntWcount(a0, 0);
1663         }
1664         pc0 = ra;
1665 }
1666
1667
1668 /* gets ev for use with Event */
1669 #define GetEv() \
1670         ev = (a0 >> 24) & 0xf; \
1671         if (ev == 0xf) ev = 0x5; \
1672         ev*= 32; \
1673         ev+= a0&0x1f;
1674
1675 /* gets spec for use with Event */
1676 #define GetSpec() \
1677         spec = 0; \
1678         switch (a1) { \
1679                 case 0x0301: spec = 16; break; \
1680                 case 0x0302: spec = 17; break; \
1681                 default: \
1682                         for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1683                         break; \
1684         }
1685
1686 void psxBios_DeliverEvent() { // 07
1687         int ev, spec;
1688         int i;
1689
1690         GetEv();
1691         GetSpec();
1692
1693 #ifdef PSXBIOS_LOG
1694         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1695 #endif
1696
1697         DeliverEvent(ev, spec);
1698
1699         pc0 = ra;
1700 }
1701
1702 void psxBios_OpenEvent() { // 08
1703         int ev, spec;
1704         int i;
1705
1706         GetEv();
1707         GetSpec();
1708
1709 #ifdef PSXBIOS_LOG
1710         PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1711 #endif
1712
1713         Event[ev][spec].status = EvStWAIT;
1714         Event[ev][spec].mode = a2;
1715         Event[ev][spec].fhandler = a3;
1716
1717         v0 = ev | (spec << 8);
1718         pc0 = ra;
1719 }
1720
1721 void psxBios_CloseEvent() { // 09
1722         int ev, spec;
1723
1724         ev   = a0 & 0xff;
1725         spec = (a0 >> 8) & 0xff;
1726
1727 #ifdef PSXBIOS_LOG
1728         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1729 #endif
1730
1731         Event[ev][spec].status = EvStUNUSED;
1732
1733         v0 = 1; pc0 = ra;
1734 }
1735
1736 void psxBios_WaitEvent() { // 0a
1737         int ev, spec;
1738
1739         ev   = a0 & 0xff;
1740         spec = (a0 >> 8) & 0xff;
1741 #ifdef PSXBIOS_LOG
1742         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1743 #endif
1744         if (Event[ev][spec].status == EvStUNUSED)
1745         {
1746                 v0 = 0;
1747                 pc0 = ra;
1748                 return;
1749         }
1750
1751         if (Event[ev][spec].status == EvStALREADY)
1752         {
1753                 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1754                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1755                 v0 = 1;
1756                 pc0 = ra;
1757                 return;
1758         }
1759
1760         v0 = 0;
1761         pc0 = ra;
1762 }
1763
1764 void psxBios_TestEvent() { // 0b
1765         int ev, spec;
1766
1767         ev   = a0 & 0xff;
1768         spec = (a0 >> 8) & 0xff;
1769
1770         if (Event[ev][spec].status == EvStALREADY)
1771         {
1772                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1773                 v0 = 1;
1774         }
1775         else
1776         {
1777                 v0 = 0;
1778         }
1779
1780 #ifdef PSXBIOS_LOG
1781         PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1782 #endif
1783
1784         pc0 = ra;
1785 }
1786
1787 void psxBios_EnableEvent() { // 0c
1788         int ev, spec;
1789
1790         ev   = a0 & 0xff;
1791         spec = (a0 >> 8) & 0xff;
1792
1793 #ifdef PSXBIOS_LOG
1794         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1795 #endif
1796
1797         Event[ev][spec].status = EvStACTIVE;
1798
1799         v0 = 1; pc0 = ra;
1800 }
1801
1802 void psxBios_DisableEvent() { // 0d
1803         int ev, spec;
1804
1805         ev   = a0 & 0xff;
1806         spec = (a0 >> 8) & 0xff;
1807
1808 #ifdef PSXBIOS_LOG
1809         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1810 #endif
1811
1812         Event[ev][spec].status = EvStWAIT;
1813
1814         v0 = 1; pc0 = ra;
1815 }
1816
1817 /*
1818  *      long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1819  */
1820
1821 void psxBios_OpenTh() { // 0e
1822         int th;
1823
1824         for (th=1; th<8; th++)
1825         {
1826                 if (Thread[th].status == 0) break;
1827
1828         }
1829         if (th == 8) {
1830                 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1831                 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1832 #ifdef PSXBIOS_LOG
1833                 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1834 #endif
1835                 v0 = 0xffffffff;
1836                 pc0 = ra;
1837                 return;
1838         }
1839 #ifdef PSXBIOS_LOG
1840         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1841 #endif
1842
1843         Thread[th].status = 1;
1844         Thread[th].func    = a0;
1845         Thread[th].reg[29] = a1;
1846         Thread[th].reg[28] = a2;
1847
1848         v0 = th; pc0 = ra;
1849 }
1850
1851 /*
1852  *      int CloseTh(long thread);
1853  */
1854
1855 void psxBios_CloseTh() { // 0f
1856         int th = a0 & 0xff;
1857
1858 #ifdef PSXBIOS_LOG
1859         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1860 #endif
1861
1862         if (Thread[th].status == 0) {
1863                 v0 = 0;
1864         } else {
1865                 Thread[th].status = 0;
1866                 v0 = 1;
1867         }
1868
1869         pc0 = ra;
1870 }
1871
1872 /*
1873  *      int ChangeTh(long thread);
1874  */
1875
1876 void psxBios_ChangeTh() { // 10
1877         int th = a0 & 0xff;
1878
1879 #ifdef PSXBIOS_LOG
1880 //      PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1881 #endif
1882
1883         if (Thread[th].status == 0 || CurThread == th) {
1884                 v0 = 0;
1885
1886                 pc0 = ra;
1887         } else {
1888                 v0 = 1;
1889
1890                 if (Thread[CurThread].status == 2) {
1891                         Thread[CurThread].status = 1;
1892                         Thread[CurThread].func = ra;
1893                         memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1894                 }
1895
1896                 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1897                 pc0 = Thread[th].func;
1898                 Thread[th].status = 2;
1899                 CurThread = th;
1900         }
1901 }
1902
1903 void psxBios_InitPAD() { // 0x12
1904 #ifdef PSXBIOS_LOG
1905         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1906 #endif
1907
1908         pad_buf1 = (char*)Ra0;
1909         pad_buf1len = a1;
1910         pad_buf2 = (char*)Ra2;
1911         pad_buf2len = a3;
1912
1913         v0 = 1; pc0 = ra;
1914 }
1915
1916 void psxBios_StartPAD() { // 13
1917 #ifdef PSXBIOS_LOG
1918         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1919 #endif
1920         pad_stopped = 0;
1921         psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1922         psxRegs.CP0.n.Status |= 0x401;
1923         pc0 = ra;
1924 }
1925
1926 void psxBios_StopPAD() { // 14
1927 #ifdef PSXBIOS_LOG
1928         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1929 #endif
1930         pad_stopped = 1;
1931         if (pad_buf == 0){
1932         pad_buf1 = NULL;
1933         pad_buf2 = NULL;
1934         }
1935         pc0 = ra;
1936 }
1937
1938 void psxBios_PAD_init() { // 15
1939 #ifdef PSXBIOS_LOG
1940         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1941 #endif
1942         if (!(a0 == 0x20000000 || a0 == 0x20000001))
1943         {
1944                 v0 = 0;
1945                 pc0 = ra;
1946                 return;
1947         }
1948         psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1949         pad_buf = (int *)Ra1;
1950         *pad_buf = -1;
1951         psxRegs.CP0.n.Status |= 0x401;
1952         v0 = 2;
1953         pc0 = ra;
1954 }
1955
1956 void psxBios_PAD_dr() { // 16
1957 #ifdef PSXBIOS_LOG
1958         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1959 #endif
1960
1961         v0 = -1; pc0 = ra;
1962 }
1963
1964 void psxBios_ReturnFromException() { // 17
1965         LoadRegs();
1966
1967         pc0 = psxRegs.CP0.n.EPC;
1968         if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1969
1970         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1971                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1972 }
1973
1974 void psxBios_ResetEntryInt() { // 18
1975 #ifdef PSXBIOS_LOG
1976         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1977 #endif
1978
1979         jmp_int = NULL;
1980         pc0 = ra;
1981 }
1982
1983 void psxBios_HookEntryInt() { // 19
1984 #ifdef PSXBIOS_LOG
1985         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1986 #endif
1987
1988         jmp_int = (u32*)Ra0;
1989         pc0 = ra;
1990 }
1991
1992 void psxBios_UnDeliverEvent() { // 0x20
1993         int ev, spec;
1994         int i;
1995
1996         GetEv();
1997         GetSpec();
1998
1999 #ifdef PSXBIOS_LOG
2000         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
2001 #endif
2002
2003         if (Event[ev][spec].status == EvStALREADY &&
2004                 Event[ev][spec].mode == EvMdNOINTR)
2005                 Event[ev][spec].status = EvStACTIVE;
2006
2007         pc0 = ra;
2008 }
2009
2010 char ffile[64], *pfile;
2011 int nfile;
2012 static void buopen(int mcd, u8 *ptr, u8 *cfg)
2013 {
2014         int i;
2015         u8 *fptr = ptr;
2016
2017         strcpy(FDesc[1 + mcd].name, Ra0+5);
2018         FDesc[1 + mcd].offset = 0;
2019         FDesc[1 + mcd].mode   = a1;
2020
2021         for (i=1; i<16; i++) {
2022                 fptr += 128;
2023                 if ((*fptr & 0xF0) != 0x50) continue;
2024                 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
2025                 FDesc[1 + mcd].mcfile = i;
2026                 SysPrintf("open %s\n", fptr+0xa);
2027                 v0 = 1 + mcd;
2028                 break;
2029         }
2030         if (a1 & 0x200 && v0 == -1) { /* FCREAT */
2031                 fptr = ptr;
2032                 for (i=1; i<16; i++) {
2033                         int j, xor, nblk = a1 >> 16;
2034                         u8 *pptr, *fptr2;
2035
2036                         fptr += 128;
2037                         if ((*fptr & 0xF0) != 0xa0) continue;
2038
2039                         FDesc[1 + mcd].mcfile = i;
2040                         fptr[0] = 0x51;
2041                         fptr[4] = 0x00;
2042                         fptr[5] = 0x20 * nblk;
2043                         fptr[6] = 0x00;
2044                         fptr[7] = 0x00;
2045                         strcpy(fptr+0xa, FDesc[1 + mcd].name);
2046                         pptr = fptr2 = fptr;
2047                         for(j=2; j<=nblk; j++) {
2048                                 int k;
2049                                 for(i++; i<16; i++) {
2050                                         fptr2 += 128;
2051
2052                                         memset(fptr2, 0, 128);
2053                                         fptr2[0] = j < nblk ? 0x52 : 0x53;
2054                                         pptr[8] = i - 1;
2055                                         pptr[9] = 0;
2056                                         for (k=0, xor=0; k<127; k++) xor^= pptr[k];
2057                                         pptr[127] = xor;
2058                                         pptr = fptr2;
2059                                         break;
2060                                 }
2061                                 /* shouldn't this return ENOSPC if i == 16? */
2062                         }
2063                         pptr[8] = pptr[9] = 0xff;
2064                         for (j=0, xor=0; j<127; j++) xor^= pptr[j];
2065                         pptr[127] = xor;
2066                         SysPrintf("openC %s %d\n", ptr, nblk);
2067                         v0 = 1 + mcd;
2068                         /* just go ahead and resave them all */
2069                         SaveMcd(cfg, ptr, 128, 128 * 15);
2070                         break;
2071                 }
2072                 /* shouldn't this return ENOSPC if i == 16? */
2073         }
2074 }
2075
2076 /*
2077  *      int open(char *name , int mode);
2078  */
2079
2080 void psxBios_open() { // 0x32
2081         int i;
2082         char *ptr;
2083         void *pa0 = Ra0;
2084
2085 #ifdef PSXBIOS_LOG
2086         PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
2087 #endif
2088
2089         v0 = -1;
2090
2091         if (pa0) {
2092                 if (!strncmp(pa0, "bu00", 4)) {
2093                         buopen(1, Mcd1Data, Config.Mcd1);
2094                 }
2095
2096                 if (!strncmp(pa0, "bu10", 4)) {
2097                         buopen(2, Mcd2Data, Config.Mcd2);
2098                 }
2099         }
2100
2101         pc0 = ra;
2102 }
2103
2104 /*
2105  *      int lseek(int fd , int offset , int whence);
2106  */
2107
2108 void psxBios_lseek() { // 0x33
2109 #ifdef PSXBIOS_LOG
2110         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2111 #endif
2112
2113         switch (a2) {
2114                 case 0: // SEEK_SET
2115                         FDesc[a0].offset = a1;
2116                         v0 = a1;
2117 //                      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2118 //                      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2119                         break;
2120
2121                 case 1: // SEEK_CUR
2122                         FDesc[a0].offset+= a1;
2123                         v0 = FDesc[a0].offset;
2124                         break;
2125         }
2126
2127         pc0 = ra;
2128 }
2129
2130
2131 /*
2132  *      int read(int fd , void *buf , int nbytes);
2133  */
2134
2135 void psxBios_read() { // 0x34
2136         char *ptr;
2137         void *pa1 = Ra1;
2138
2139 #ifdef PSXBIOS_LOG
2140         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2141 #endif
2142
2143         v0 = -1;
2144
2145         if (pa1) {
2146                 switch (a0) {
2147                         case 2: buread(pa1, 1, a2); break;
2148                         case 3: buread(pa1, 2, a2); break;
2149                 }
2150         }
2151
2152         pc0 = ra;
2153 }
2154
2155 /*
2156  *      int write(int fd , void *buf , int nbytes);
2157  */
2158
2159 void psxBios_write() { // 0x35/0x03
2160         char *ptr;
2161         void *pa1 = Ra1;
2162
2163 #ifdef PSXBIOS_LOG
2164         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2165 #endif
2166
2167         v0 = -1;
2168         if (!pa1) {
2169                 pc0 = ra;
2170                 return;
2171         }
2172
2173         if (a0 == 1) { // stdout
2174                 char *ptr = pa1;
2175
2176                 v0 = a2;
2177                 while (a2 > 0) {
2178                         SysPrintf("%c", *ptr++); a2--;
2179                 }
2180                 pc0 = ra; return;
2181         }
2182
2183         switch (a0) {
2184                 case 2: buwrite(pa1, 1, a2); break;
2185                 case 3: buwrite(pa1, 2, a2); break;
2186         }
2187
2188         pc0 = ra;
2189 }
2190
2191 /*
2192  *      int close(int fd);
2193  */
2194
2195 void psxBios_close() { // 0x36
2196 #ifdef PSXBIOS_LOG
2197         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2198 #endif
2199
2200         v0 = a0;
2201         pc0 = ra;
2202 }
2203
2204 void psxBios_putchar() { // 3d
2205         SysPrintf("%c", (char)a0);
2206         pc0 = ra;
2207 }
2208
2209 void psxBios_puts() { // 3e/3f
2210         SysPrintf("%s", Ra0);
2211         pc0 = ra;
2212 }
2213
2214 char ffile[64], *pfile;
2215 int nfile;
2216
2217
2218 /* To avoid any issues with different behaviour when using the libc's own strlen instead.
2219  * We want to mimic the PSX's behaviour in this case for bufile. */
2220 static size_t strlen_internal(char* p)
2221 {
2222         size_t size_of_array = 0;
2223         while (*p++) size_of_array++;
2224         return size_of_array;
2225 }
2226
2227 #define bufile(mcd) { \
2228         size_t size_of_name = strlen_internal(dir->name); \
2229         while (nfile < 16) { \
2230                 int match=1; \
2231  \
2232                 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
2233                 nfile++; \
2234                 if ((*ptr & 0xF0) != 0x50) continue; \
2235                 /* Bug link files show up as free block. */ \
2236                 if (!ptr[0xa]) continue; \
2237                 ptr+= 0xa; \
2238                 if (pfile[0] == 0) { \
2239                         strncpy(dir->name, ptr, sizeof(dir->name) - 1); \
2240                         if (size_of_name < sizeof(dir->name)) dir->name[size_of_name] = '\0'; \
2241                 } else for (i=0; i<20; i++) { \
2242                         if (pfile[i] == ptr[i]) { \
2243                                                                 dir->name[i] = ptr[i]; continue; } \
2244                         if (pfile[i] == '?') { \
2245                                 dir->name[i] = ptr[i]; continue; } \
2246                         if (pfile[i] == '*') { \
2247                                 strcpy(dir->name+i, ptr+i); break; } \
2248                         match = 0; break; \
2249                 } \
2250                 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
2251                 if (match == 0) { continue; } \
2252                 dir->size = 8192; \
2253                 v0 = _dir; \
2254                 break; \
2255         } \
2256 }
2257
2258 /*
2259  *      struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2260  */
2261
2262 void psxBios_firstfile() { // 42
2263         struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
2264         void *pa0 = Ra0;
2265         u32 _dir = a1;
2266         char *ptr;
2267         int i;
2268
2269 #ifdef PSXBIOS_LOG
2270         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2271 #endif
2272
2273         v0 = 0;
2274
2275         if (pa0) {
2276                 strcpy(ffile, pa0);
2277                 pfile = ffile+5;
2278                 nfile = 1;
2279                 if (!strncmp(pa0, "bu00", 4)) {
2280                         // firstfile() calls _card_read() internally, so deliver it's event
2281                         DeliverEvent(0x11, 0x2);
2282                         bufile(1);
2283                 } else if (!strncmp(pa0, "bu10", 4)) {
2284                         // firstfile() calls _card_read() internally, so deliver it's event
2285                         DeliverEvent(0x11, 0x2);
2286                         bufile(2);
2287                 }
2288         }
2289
2290         pc0 = ra;
2291 }
2292
2293 /*
2294  *      struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2295  */
2296
2297 void psxBios_nextfile() { // 43
2298         struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2299         u32 _dir = a0;
2300         char *ptr;
2301         int i;
2302
2303 #ifdef PSXBIOS_LOG
2304         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2305 #endif
2306
2307         v0 = 0;
2308
2309         if (!strncmp(ffile, "bu00", 4)) {
2310                 bufile(1);
2311         }
2312
2313         if (!strncmp(ffile, "bu10", 4)) {
2314                 bufile(2);
2315         }
2316
2317         pc0 = ra;
2318 }
2319
2320 #define burename(mcd) { \
2321         for (i=1; i<16; i++) { \
2322                 int namelen, j, xor = 0; \
2323                 ptr = Mcd##mcd##Data + 128 * i; \
2324                 if ((*ptr & 0xF0) != 0x50) continue; \
2325                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2326                 namelen = strlen(Ra1+5); \
2327                 memcpy(ptr+0xa, Ra1+5, namelen); \
2328                 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2329                 for (j=0; j<127; j++) xor^= ptr[j]; \
2330                 ptr[127] = xor; \
2331                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2332                 v0 = 1; \
2333                 break; \
2334         } \
2335 }
2336
2337 /*
2338  *      int rename(char *old, char *new);
2339  */
2340
2341 void psxBios_rename() { // 44
2342         void *pa0 = Ra0;
2343         void *pa1 = Ra1;
2344         char *ptr;
2345         int i;
2346
2347 #ifdef PSXBIOS_LOG
2348         PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2349 #endif
2350
2351         v0 = 0;
2352
2353         if (pa0 && pa1) {
2354                 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2355                         burename(1);
2356                 }
2357
2358                 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2359                         burename(2);
2360                 }
2361         }
2362
2363         pc0 = ra;
2364 }
2365
2366
2367 #define budelete(mcd) { \
2368         for (i=1; i<16; i++) { \
2369                 ptr = Mcd##mcd##Data + 128 * i; \
2370                 if ((*ptr & 0xF0) != 0x50) continue; \
2371                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2372                 *ptr = (*ptr & 0xf) | 0xA0; \
2373                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2374                 SysPrintf("delete %s\n", ptr+0xa); \
2375                 v0 = 1; \
2376                 break; \
2377         } \
2378 }
2379
2380 /*
2381  *      int delete(char *name);
2382  */
2383
2384 void psxBios_delete() { // 45
2385         void *pa0 = Ra0;
2386         char *ptr;
2387         int i;
2388
2389 #ifdef PSXBIOS_LOG
2390         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2391 #endif
2392
2393         v0 = 0;
2394
2395         if (pa0) {
2396                 if (!strncmp(pa0, "bu00", 4)) {
2397                         budelete(1);
2398                 }
2399
2400                 if (!strncmp(pa0, "bu10", 4)) {
2401                         budelete(2);
2402                 }
2403         }
2404
2405         pc0 = ra;
2406 }
2407
2408 void psxBios_InitCARD() { // 4a
2409 #ifdef PSXBIOS_LOG
2410         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2411 #endif
2412
2413         CardState = 0;
2414
2415         pc0 = ra;
2416 }
2417
2418 void psxBios_StartCARD() { // 4b
2419 #ifdef PSXBIOS_LOG
2420         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2421 #endif
2422
2423         if (CardState == 0) CardState = 1;
2424
2425         pc0 = ra;
2426 }
2427
2428 void psxBios_StopCARD() { // 4c
2429 #ifdef PSXBIOS_LOG
2430         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2431 #endif
2432
2433         if (CardState == 1) CardState = 0;
2434
2435         pc0 = ra;
2436 }
2437
2438 void psxBios__card_write() { // 0x4e
2439         void *pa2 = Ra2;
2440         int port;
2441
2442 #ifdef PSXBIOS_LOG
2443         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2444 #endif
2445         /* Function also accepts sector 400h (a bug) */
2446         if (!(a1 <= 0x400))
2447         {
2448                 /* Invalid sectors */
2449                 v0 = 0; pc0 = ra;
2450                 return;
2451         }
2452         card_active_chan = a0;
2453         port = a0 >> 4;
2454
2455         if (pa2) {
2456                 if (port == 0) {
2457                         memcpy(Mcd1Data + a1 * 128, pa2, 128);
2458                         SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2459                 } else {
2460                         memcpy(Mcd2Data + a1 * 128, pa2, 128);
2461                         SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2462                 }
2463         }
2464
2465         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2466 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2467
2468         v0 = 1; pc0 = ra;
2469 }
2470
2471 void psxBios__card_read() { // 0x4f
2472         void *pa2 = Ra2;
2473         int port;
2474
2475 #ifdef PSXBIOS_LOG
2476         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2477 #endif
2478         /* Function also accepts sector 400h (a bug) */
2479         if (!(a1 <= 0x400))
2480         {
2481                 /* Invalid sectors */
2482                 v0 = 0; pc0 = ra;
2483                 return;
2484         }
2485         card_active_chan = a0;
2486         port = a0 >> 4;
2487
2488         if (pa2) {
2489                 if (port == 0) {
2490                         memcpy(pa2, Mcd1Data + a1 * 128, 128);
2491                 } else {
2492                         memcpy(pa2, Mcd2Data + a1 * 128, 128);
2493                 }
2494         }
2495
2496         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2497 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2498
2499         v0 = 1; pc0 = ra;
2500 }
2501
2502 void psxBios__new_card() { // 0x50
2503 #ifdef PSXBIOS_LOG
2504         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2505 #endif
2506
2507         pc0 = ra;
2508 }
2509
2510 /* According to a user, this allows Final Fantasy Tactics to save/load properly */
2511 void psxBios__get_error(void) // 55
2512 {
2513         v0 = 0;
2514         pc0 = ra;
2515 }
2516
2517 void psxBios_Krom2RawAdd() { // 0x51
2518         int i = 0;
2519
2520         const u32 table_8140[][2] = {
2521                 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2522                 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2523                 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2524                 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2525                 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2526                 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2527                 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2528                 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2529                 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2530                 {0xffff, 0}
2531         };
2532
2533         const u32 table_889f[][2] = {
2534                 {0x889f, 0x3d68},  {0x8900, 0x40ec},  {0x897f, 0x4fb0},  {0x8a00, 0x56f4},
2535                 {0x8a7f, 0x65b8},  {0x8b00, 0x6cfc},  {0x8b7f, 0x7bc0},  {0x8c00, 0x8304},
2536                 {0x8c7f, 0x91c8},  {0x8d00, 0x990c},  {0x8d7f, 0xa7d0},  {0x8e00, 0xaf14},
2537                 {0x8e7f, 0xbdd8},  {0x8f00, 0xc51c},  {0x8f7f, 0xd3e0},  {0x9000, 0xdb24},
2538                 {0x907f, 0xe9e8},  {0x9100, 0xf12c},  {0x917f, 0xfff0},  {0x9200, 0x10734},
2539                 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2540                 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2541                 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2542                 {0xffff, 0}
2543         };
2544
2545         if (a0 >= 0x8140 && a0 <= 0x84be) {
2546                 while (table_8140[i][0] <= a0) i++;
2547                 a0 -= table_8140[i - 1][0];
2548                 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2549         } else if (a0 >= 0x889f && a0 <= 0x9872) {
2550                 while (table_889f[i][0] <= a0) i++;
2551                 a0 -= table_889f[i - 1][0];
2552                 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2553         } else {
2554                 v0 = 0xffffffff;
2555         }
2556
2557         pc0 = ra;
2558 }
2559
2560 void psxBios_GetC0Table() { // 56
2561 #ifdef PSXBIOS_LOG
2562         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2563 #endif
2564
2565         v0 = 0x674; pc0 = ra;
2566 }
2567
2568 void psxBios_GetB0Table() { // 57
2569 #ifdef PSXBIOS_LOG
2570         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2571 #endif
2572
2573         v0 = 0x874; pc0 = ra;
2574 }
2575
2576 void psxBios__card_chan() { // 0x58
2577 #ifdef PSXBIOS_LOG
2578         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2579 #endif
2580
2581         v0 = card_active_chan;
2582         pc0 = ra;
2583 }
2584
2585 void psxBios_ChangeClearPad() { // 5b
2586 #ifdef PSXBIOS_LOG
2587         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2588 #endif
2589
2590         pc0 = ra;
2591 }
2592
2593 void psxBios__card_status() { // 5c
2594 #ifdef PSXBIOS_LOG
2595         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5c], a0);
2596 #endif
2597
2598         v0 = 1;
2599         pc0 = ra;
2600 }
2601
2602 /* System calls C0 */
2603
2604 /*
2605  * int SysEnqIntRP(int index , long *queue);
2606  */
2607
2608 void psxBios_SysEnqIntRP() { // 02
2609 #ifdef PSXBIOS_LOG
2610         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2611 #endif
2612
2613         SysIntRP[a0] = a1;
2614
2615         v0 = 0; pc0 = ra;
2616 }
2617
2618 /*
2619  * int SysDeqIntRP(int index , long *queue);
2620  */
2621
2622 void psxBios_SysDeqIntRP() { // 03
2623 #ifdef PSXBIOS_LOG
2624         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2625 #endif
2626
2627         SysIntRP[a0] = 0;
2628
2629         v0 = 0; pc0 = ra;
2630 }
2631
2632 void psxBios_ChangeClearRCnt() { // 0a
2633         u32 *ptr;
2634
2635 #ifdef PSXBIOS_LOG
2636         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2637 #endif
2638
2639         ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2640         v0 = *ptr;
2641         *ptr = a1;
2642
2643 //      psxRegs.CP0.n.Status|= 0x404;
2644         pc0 = ra;
2645 }
2646
2647 void psxBios_dummy() {
2648 #ifdef PSXBIOS_LOG
2649         PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2650 #endif
2651         pc0 = ra;
2652 }
2653
2654 void (*biosA0[256])();
2655 void (*biosB0[256])();
2656 void (*biosC0[256])();
2657
2658 #include "sjisfont.h"
2659
2660 void psxBiosInit() {
2661         u32 base, size;
2662         u32 *ptr;
2663         int i;
2664         uLongf len;
2665
2666         for(i = 0; i < 256; i++) {
2667                 biosA0[i] = NULL;
2668                 biosB0[i] = NULL;
2669                 biosC0[i] = NULL;
2670         }
2671         biosA0[0x3e] = psxBios_puts;
2672         biosA0[0x3f] = psxBios_printf;
2673
2674         biosB0[0x3d] = psxBios_putchar;
2675         biosB0[0x3f] = psxBios_puts;
2676
2677         if (!Config.HLE) return;
2678
2679         for(i = 0; i < 256; i++) {
2680                 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2681                 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2682                 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2683         }
2684
2685         biosA0[0x00] = psxBios_open;
2686         biosA0[0x01] = psxBios_lseek;
2687         biosA0[0x02] = psxBios_read;
2688         biosA0[0x03] = psxBios_write;
2689         biosA0[0x04] = psxBios_close;
2690         //biosA0[0x05] = psxBios_ioctl;
2691         //biosA0[0x06] = psxBios_exit;
2692         //biosA0[0x07] = psxBios_sys_a0_07;
2693         biosA0[0x08] = psxBios_getc;
2694         biosA0[0x09] = psxBios_putc;
2695         biosA0[0x0a] = psxBios_todigit;
2696         //biosA0[0x0b] = psxBios_atof;
2697         //biosA0[0x0c] = psxBios_strtoul;
2698         //biosA0[0x0d] = psxBios_strtol;
2699         biosA0[0x0e] = psxBios_abs;
2700         biosA0[0x0f] = psxBios_labs;
2701         biosA0[0x10] = psxBios_atoi;
2702         biosA0[0x11] = psxBios_atol;
2703         //biosA0[0x12] = psxBios_atob;
2704         biosA0[0x13] = psxBios_setjmp;
2705         biosA0[0x14] = psxBios_longjmp;
2706         biosA0[0x15] = psxBios_strcat;
2707         biosA0[0x16] = psxBios_strncat;
2708         biosA0[0x17] = psxBios_strcmp;
2709         biosA0[0x18] = psxBios_strncmp;
2710         biosA0[0x19] = psxBios_strcpy;
2711         biosA0[0x1a] = psxBios_strncpy;
2712         biosA0[0x1b] = psxBios_strlen;
2713         biosA0[0x1c] = psxBios_index;
2714         biosA0[0x1d] = psxBios_rindex;
2715         biosA0[0x1e] = psxBios_strchr;
2716         biosA0[0x1f] = psxBios_strrchr;
2717         biosA0[0x20] = psxBios_strpbrk;
2718         biosA0[0x21] = psxBios_strspn;
2719         biosA0[0x22] = psxBios_strcspn;
2720         biosA0[0x23] = psxBios_strtok;
2721         biosA0[0x24] = psxBios_strstr;
2722         biosA0[0x25] = psxBios_toupper;
2723         biosA0[0x26] = psxBios_tolower;
2724         biosA0[0x27] = psxBios_bcopy;
2725         biosA0[0x28] = psxBios_bzero;
2726         biosA0[0x29] = psxBios_bcmp;
2727         biosA0[0x2a] = psxBios_memcpy;
2728         biosA0[0x2b] = psxBios_memset;
2729         biosA0[0x2c] = psxBios_memmove;
2730         biosA0[0x2d] = psxBios_memcmp;
2731         biosA0[0x2e] = psxBios_memchr;
2732         biosA0[0x2f] = psxBios_rand;
2733         biosA0[0x30] = psxBios_srand;
2734         biosA0[0x31] = psxBios_qsort;
2735         //biosA0[0x32] = psxBios_strtod;
2736         biosA0[0x33] = psxBios_malloc;
2737         biosA0[0x34] = psxBios_free;
2738         //biosA0[0x35] = psxBios_lsearch;
2739         //biosA0[0x36] = psxBios_bsearch;
2740         biosA0[0x37] = psxBios_calloc;
2741         biosA0[0x38] = psxBios_realloc;
2742         biosA0[0x39] = psxBios_InitHeap;
2743         //biosA0[0x3a] = psxBios__exit;
2744         biosA0[0x3b] = psxBios_getchar;
2745         biosA0[0x3c] = psxBios_putchar;
2746         //biosA0[0x3d] = psxBios_gets;
2747         //biosA0[0x40] = psxBios_sys_a0_40;
2748         //biosA0[0x41] = psxBios_LoadTest;
2749         biosA0[0x42] = psxBios_Load;
2750         biosA0[0x43] = psxBios_Exec;
2751         biosA0[0x44] = psxBios_FlushCache;
2752         //biosA0[0x45] = psxBios_InstallInterruptHandler;
2753         biosA0[0x46] = psxBios_GPU_dw;
2754         biosA0[0x47] = psxBios_mem2vram;
2755         biosA0[0x48] = psxBios_SendGPU;
2756         biosA0[0x49] = psxBios_GPU_cw;
2757         biosA0[0x4a] = psxBios_GPU_cwb;
2758         biosA0[0x4b] = psxBios_GPU_SendPackets;
2759         biosA0[0x4c] = psxBios_sys_a0_4c;
2760         biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2761         //biosA0[0x4e] = psxBios_GPU_sync;
2762         //biosA0[0x4f] = psxBios_sys_a0_4f;
2763         //biosA0[0x50] = psxBios_sys_a0_50;
2764         biosA0[0x51] = psxBios_LoadExec;
2765         //biosA0[0x52] = psxBios_GetSysSp;
2766         //biosA0[0x53] = psxBios_sys_a0_53;
2767         //biosA0[0x54] = psxBios__96_init_a54;
2768         //biosA0[0x55] = psxBios__bu_init_a55;
2769         //biosA0[0x56] = psxBios__96_remove_a56;
2770         //biosA0[0x57] = psxBios_sys_a0_57;
2771         //biosA0[0x58] = psxBios_sys_a0_58;
2772         //biosA0[0x59] = psxBios_sys_a0_59;
2773         //biosA0[0x5a] = psxBios_sys_a0_5a;
2774         //biosA0[0x5b] = psxBios_dev_tty_init;
2775         //biosA0[0x5c] = psxBios_dev_tty_open;
2776         //biosA0[0x5d] = psxBios_sys_a0_5d;
2777         //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2778         //biosA0[0x5f] = psxBios_dev_cd_open;
2779         //biosA0[0x60] = psxBios_dev_cd_read;
2780         //biosA0[0x61] = psxBios_dev_cd_close;
2781         //biosA0[0x62] = psxBios_dev_cd_firstfile;
2782         //biosA0[0x63] = psxBios_dev_cd_nextfile;
2783         //biosA0[0x64] = psxBios_dev_cd_chdir;
2784         //biosA0[0x65] = psxBios_dev_card_open;
2785         //biosA0[0x66] = psxBios_dev_card_read;
2786         //biosA0[0x67] = psxBios_dev_card_write;
2787         //biosA0[0x68] = psxBios_dev_card_close;
2788         //biosA0[0x69] = psxBios_dev_card_firstfile;
2789         //biosA0[0x6a] = psxBios_dev_card_nextfile;
2790         //biosA0[0x6b] = psxBios_dev_card_erase;
2791         //biosA0[0x6c] = psxBios_dev_card_undelete;
2792         //biosA0[0x6d] = psxBios_dev_card_format;
2793         //biosA0[0x6e] = psxBios_dev_card_rename;
2794         //biosA0[0x6f] = psxBios_dev_card_6f;
2795         biosA0[0x70] = psxBios__bu_init;
2796         biosA0[0x71] = psxBios__96_init;
2797         biosA0[0x72] = psxBios__96_remove;
2798         //biosA0[0x73] = psxBios_sys_a0_73;
2799         //biosA0[0x74] = psxBios_sys_a0_74;
2800         //biosA0[0x75] = psxBios_sys_a0_75;
2801         //biosA0[0x76] = psxBios_sys_a0_76;
2802         //biosA0[0x77] = psxBios_sys_a0_77;
2803         //biosA0[0x78] = psxBios__96_CdSeekL;
2804         //biosA0[0x79] = psxBios_sys_a0_79;
2805         //biosA0[0x7a] = psxBios_sys_a0_7a;
2806         //biosA0[0x7b] = psxBios_sys_a0_7b;
2807         //biosA0[0x7c] = psxBios__96_CdGetStatus;
2808         //biosA0[0x7d] = psxBios_sys_a0_7d;
2809         //biosA0[0x7e] = psxBios__96_CdRead;
2810         //biosA0[0x7f] = psxBios_sys_a0_7f;
2811         //biosA0[0x80] = psxBios_sys_a0_80;
2812         //biosA0[0x81] = psxBios_sys_a0_81;
2813         //biosA0[0x82] = psxBios_sys_a0_82;
2814         //biosA0[0x83] = psxBios_sys_a0_83;
2815         //biosA0[0x84] = psxBios_sys_a0_84;
2816         //biosA0[0x85] = psxBios__96_CdStop;
2817         //biosA0[0x86] = psxBios_sys_a0_86;
2818         //biosA0[0x87] = psxBios_sys_a0_87;
2819         //biosA0[0x88] = psxBios_sys_a0_88;
2820         //biosA0[0x89] = psxBios_sys_a0_89;
2821         //biosA0[0x8a] = psxBios_sys_a0_8a;
2822         //biosA0[0x8b] = psxBios_sys_a0_8b;
2823         //biosA0[0x8c] = psxBios_sys_a0_8c;
2824         //biosA0[0x8d] = psxBios_sys_a0_8d;
2825         //biosA0[0x8e] = psxBios_sys_a0_8e;
2826         //biosA0[0x8f] = psxBios_sys_a0_8f;
2827         //biosA0[0x90] = psxBios_sys_a0_90;
2828         //biosA0[0x91] = psxBios_sys_a0_91;
2829         //biosA0[0x92] = psxBios_sys_a0_92;
2830         //biosA0[0x93] = psxBios_sys_a0_93;
2831         //biosA0[0x94] = psxBios_sys_a0_94;
2832         //biosA0[0x95] = psxBios_sys_a0_95;
2833         //biosA0[0x96] = psxBios_AddCDROMDevice;
2834         //biosA0[0x97] = psxBios_AddMemCardDevide;
2835         //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2836         //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2837         //biosA0[0x9a] = psxBios_sys_a0_9a;
2838         //biosA0[0x9b] = psxBios_sys_a0_9b;
2839         //biosA0[0x9c] = psxBios_SetConf;
2840         //biosA0[0x9d] = psxBios_GetConf;
2841         //biosA0[0x9e] = psxBios_sys_a0_9e;
2842         biosA0[0x9f] = psxBios_SetMem;
2843         //biosA0[0xa0] = psxBios__boot;
2844         //biosA0[0xa1] = psxBios_SystemError;
2845         //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2846         //biosA0[0xa3] = psxBios_DequeueCdIntr;
2847         //biosA0[0xa4] = psxBios_sys_a0_a4;
2848         //biosA0[0xa5] = psxBios_ReadSector;
2849         //biosA0[0xa6] = psxBios_get_cd_status;
2850         //biosA0[0xa7] = psxBios_bufs_cb_0;
2851         //biosA0[0xa8] = psxBios_bufs_cb_1;
2852         //biosA0[0xa9] = psxBios_bufs_cb_2;
2853         //biosA0[0xaa] = psxBios_bufs_cb_3;
2854         biosA0[0xab] = psxBios__card_info;
2855         biosA0[0xac] = psxBios__card_load;
2856         //biosA0[0axd] = psxBios__card_auto;
2857         //biosA0[0xae] = psxBios_bufs_cd_4;
2858         //biosA0[0xaf] = psxBios_sys_a0_af;
2859         //biosA0[0xb0] = psxBios_sys_a0_b0;
2860         //biosA0[0xb1] = psxBios_sys_a0_b1;
2861         //biosA0[0xb2] = psxBios_do_a_long_jmp
2862         //biosA0[0xb3] = psxBios_sys_a0_b3;
2863         //biosA0[0xb4] = psxBios_sub_function;
2864 //*******************B0 CALLS****************************
2865         //biosB0[0x00] = psxBios_SysMalloc;
2866         //biosB0[0x01] = psxBios_sys_b0_01;
2867         biosB0[0x02] = psxBios_SetRCnt;
2868         biosB0[0x03] = psxBios_GetRCnt;
2869         biosB0[0x04] = psxBios_StartRCnt;
2870         biosB0[0x05] = psxBios_StopRCnt;
2871         biosB0[0x06] = psxBios_ResetRCnt;
2872         biosB0[0x07] = psxBios_DeliverEvent;
2873         biosB0[0x08] = psxBios_OpenEvent;
2874         biosB0[0x09] = psxBios_CloseEvent;
2875         biosB0[0x0a] = psxBios_WaitEvent;
2876         biosB0[0x0b] = psxBios_TestEvent;
2877         biosB0[0x0c] = psxBios_EnableEvent;
2878         biosB0[0x0d] = psxBios_DisableEvent;
2879         biosB0[0x0e] = psxBios_OpenTh;
2880         biosB0[0x0f] = psxBios_CloseTh;
2881         biosB0[0x10] = psxBios_ChangeTh;
2882         //biosB0[0x11] = psxBios_psxBios_b0_11;
2883         biosB0[0x12] = psxBios_InitPAD;
2884         biosB0[0x13] = psxBios_StartPAD;
2885         biosB0[0x14] = psxBios_StopPAD;
2886         biosB0[0x15] = psxBios_PAD_init;
2887         biosB0[0x16] = psxBios_PAD_dr;
2888         biosB0[0x17] = psxBios_ReturnFromException;
2889         biosB0[0x18] = psxBios_ResetEntryInt;
2890         biosB0[0x19] = psxBios_HookEntryInt;
2891         //biosB0[0x1a] = psxBios_sys_b0_1a;
2892         //biosB0[0x1b] = psxBios_sys_b0_1b;
2893         //biosB0[0x1c] = psxBios_sys_b0_1c;
2894         //biosB0[0x1d] = psxBios_sys_b0_1d;
2895         //biosB0[0x1e] = psxBios_sys_b0_1e;
2896         //biosB0[0x1f] = psxBios_sys_b0_1f;
2897         biosB0[0x20] = psxBios_UnDeliverEvent;
2898         //biosB0[0x21] = psxBios_sys_b0_21;
2899         //biosB0[0x22] = psxBios_sys_b0_22;
2900         //biosB0[0x23] = psxBios_sys_b0_23;
2901         //biosB0[0x24] = psxBios_sys_b0_24;
2902         //biosB0[0x25] = psxBios_sys_b0_25;
2903         //biosB0[0x26] = psxBios_sys_b0_26;
2904         //biosB0[0x27] = psxBios_sys_b0_27;
2905         //biosB0[0x28] = psxBios_sys_b0_28;
2906         //biosB0[0x29] = psxBios_sys_b0_29;
2907         //biosB0[0x2a] = psxBios_sys_b0_2a;
2908         //biosB0[0x2b] = psxBios_sys_b0_2b;
2909         //biosB0[0x2c] = psxBios_sys_b0_2c;
2910         //biosB0[0x2d] = psxBios_sys_b0_2d;
2911         //biosB0[0x2e] = psxBios_sys_b0_2e;
2912         //biosB0[0x2f] = psxBios_sys_b0_2f;
2913         //biosB0[0x30] = psxBios_sys_b0_30;
2914         //biosB0[0x31] = psxBios_sys_b0_31;
2915         biosB0[0x32] = psxBios_open;
2916         biosB0[0x33] = psxBios_lseek;
2917         biosB0[0x34] = psxBios_read;
2918         biosB0[0x35] = psxBios_write;
2919         biosB0[0x36] = psxBios_close;
2920         //biosB0[0x37] = psxBios_ioctl;
2921         //biosB0[0x38] = psxBios_exit;
2922         //biosB0[0x39] = psxBios_sys_b0_39;
2923         //biosB0[0x3a] = psxBios_getc;
2924         //biosB0[0x3b] = psxBios_putc;
2925         biosB0[0x3c] = psxBios_getchar;
2926         //biosB0[0x3e] = psxBios_gets;
2927         //biosB0[0x40] = psxBios_cd;
2928         biosB0[0x41] = psxBios_format;
2929         biosB0[0x42] = psxBios_firstfile;
2930         biosB0[0x43] = psxBios_nextfile;
2931         biosB0[0x44] = psxBios_rename;
2932         biosB0[0x45] = psxBios_delete;
2933         //biosB0[0x46] = psxBios_undelete;
2934         //biosB0[0x47] = psxBios_AddDevice;
2935         //biosB0[0x48] = psxBios_RemoteDevice;
2936         //biosB0[0x49] = psxBios_PrintInstalledDevices;
2937         biosB0[0x4a] = psxBios_InitCARD;
2938         biosB0[0x4b] = psxBios_StartCARD;
2939         biosB0[0x4c] = psxBios_StopCARD;
2940         //biosB0[0x4d] = psxBios_sys_b0_4d;
2941         biosB0[0x4e] = psxBios__card_write;
2942         biosB0[0x4f] = psxBios__card_read;
2943         biosB0[0x50] = psxBios__new_card;
2944         biosB0[0x51] = psxBios_Krom2RawAdd;
2945         //biosB0[0x52] = psxBios_sys_b0_52;
2946         //biosB0[0x53] = psxBios_sys_b0_53;
2947         //biosB0[0x54] = psxBios__get_errno;
2948         biosB0[0x55] = psxBios__get_error;
2949         biosB0[0x56] = psxBios_GetC0Table;
2950         biosB0[0x57] = psxBios_GetB0Table;
2951         biosB0[0x58] = psxBios__card_chan;
2952         //biosB0[0x59] = psxBios_sys_b0_59;
2953         //biosB0[0x5a] = psxBios_sys_b0_5a;
2954         biosB0[0x5b] = psxBios_ChangeClearPad;
2955         biosB0[0x5c] = psxBios__card_status;
2956         //biosB0[0x5d] = psxBios__card_wait;
2957 //*******************C0 CALLS****************************
2958         //biosC0[0x00] = psxBios_InitRCnt;
2959         //biosC0[0x01] = psxBios_InitException;
2960         biosC0[0x02] = psxBios_SysEnqIntRP;
2961         biosC0[0x03] = psxBios_SysDeqIntRP;
2962         //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2963         //biosC0[0x05] = psxBios_get_free_TCB_slot;
2964         //biosC0[0x06] = psxBios_ExceptionHandler;
2965         //biosC0[0x07] = psxBios_InstallExeptionHandler;
2966         //biosC0[0x08] = psxBios_SysInitMemory;
2967         //biosC0[0x09] = psxBios_SysInitKMem;
2968         biosC0[0x0a] = psxBios_ChangeClearRCnt;
2969         //biosC0[0x0b] = psxBios_SystemError;
2970         //biosC0[0x0c] = psxBios_InitDefInt;
2971         //biosC0[0x0d] = psxBios_sys_c0_0d;
2972         //biosC0[0x0e] = psxBios_sys_c0_0e;
2973         //biosC0[0x0f] = psxBios_sys_c0_0f;
2974         //biosC0[0x10] = psxBios_sys_c0_10;
2975         //biosC0[0x11] = psxBios_sys_c0_11;
2976         //biosC0[0x12] = psxBios_InstallDevices;
2977         //biosC0[0x13] = psxBios_FlushStfInOutPut;
2978         //biosC0[0x14] = psxBios_sys_c0_14;
2979         //biosC0[0x15] = psxBios__cdevinput;
2980         //biosC0[0x16] = psxBios__cdevscan;
2981         //biosC0[0x17] = psxBios__circgetc;
2982         //biosC0[0x18] = psxBios__circputc;
2983         //biosC0[0x19] = psxBios_ioabort;
2984         //biosC0[0x1a] = psxBios_sys_c0_1a
2985         //biosC0[0x1b] = psxBios_KernelRedirect;
2986         //biosC0[0x1c] = psxBios_PatchAOTable;
2987 //************** THE END ***************************************
2988 /**/
2989         base = 0x1000;
2990         size = sizeof(EvCB) * 32;
2991         Event = (void *)&psxR[base]; base += size * 6;
2992         memset(Event, 0, size * 6);
2993         HwEV = Event;
2994         EvEV = Event + 32;
2995         RcEV = Event + 32 * 2;
2996         UeEV = Event + 32 * 3;
2997         SwEV = Event + 32 * 4;
2998         ThEV = Event + 32 * 5;
2999
3000         ptr = (u32 *)&psxM[0x0874]; // b0 table
3001         ptr[0] = SWAPu32(0x4c54 - 0x884);
3002
3003         ptr = (u32 *)&psxM[0x0674]; // c0 table
3004         ptr[6] = SWAPu32(0xc80);
3005
3006         memset(SysIntRP, 0, sizeof(SysIntRP));
3007         memset(Thread, 0, sizeof(Thread));
3008         Thread[0].status = 2; // main thread
3009
3010         pad_stopped = 1;
3011         jmp_int = NULL;
3012         pad_buf = NULL;
3013         pad_buf1 = NULL;
3014         pad_buf2 = NULL;
3015         pad_buf1len = pad_buf2len = 0;
3016         heap_addr = NULL;
3017         heap_end = NULL;
3018         heap_size = 0;
3019         CardState = -1;
3020         CurThread = 0;
3021         memset(FDesc, 0, sizeof(FDesc));
3022         card_active_chan = 0;
3023
3024         psxMu32ref(0x0150) = SWAPu32(0x160);
3025         psxMu32ref(0x0154) = SWAPu32(0x320);
3026         psxMu32ref(0x0160) = SWAPu32(0x248);
3027         strcpy((char *)&psxM[0x248], "bu");
3028 /*      psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
3029         psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
3030         psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
3031         psxMu32ref(0x09e0) = SWAPu32(0x43d0);
3032         psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
3033 */
3034         // opcode HLE
3035         psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
3036         psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
3037         psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
3038         psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
3039         psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
3040         psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
3041         psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
3042         psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
3043         psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
3044         psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
3045
3046         // initial stack pointer for BIOS interrupt
3047         psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
3048
3049         // initial RNG seed
3050         psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
3051
3052         // fonts
3053         len = 0x80000 - 0x66000;
3054         uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
3055         len = 0x80000 - 0x69d68;
3056         uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
3057
3058         // memory size 2 MB
3059         psxHu32ref(0x1060) = SWAPu32(0x00000b88);
3060
3061         hleSoftCall = FALSE;
3062 }
3063
3064 void psxBiosShutdown() {
3065 }
3066
3067 #define psxBios_PADpoll(pad) { \
3068         PAD##pad##_startPoll(pad); \
3069         pad_buf##pad[0] = 0; \
3070         pad_buf##pad[1] = PAD##pad##_poll(0x42); \
3071         if (!(pad_buf##pad[1] & 0x0f)) { \
3072                 bufcount = 32; \
3073         } else { \
3074                 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
3075         } \
3076         PAD##pad##_poll(0); \
3077         i = 2; \
3078         while (bufcount--) { \
3079                 pad_buf##pad[i++] = PAD##pad##_poll(0); \
3080         } \
3081 }
3082
3083 void biosInterrupt() {
3084         int i, bufcount;
3085
3086 //      if (psxHu32(0x1070) & 0x1) { // Vsync
3087                 if (pad_buf != NULL) {
3088                         u32 *buf = (u32*)pad_buf;
3089
3090                         if (!Config.UseNet) {
3091                                 PAD1_startPoll(1);
3092                                 if (PAD1_poll(0x42) == 0x23) {
3093                                         PAD1_poll(0);
3094                                         *buf = PAD1_poll(0) << 8;
3095                                         *buf |= PAD1_poll(0);
3096                                         PAD1_poll(0);
3097                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
3098                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
3099                                 } else {
3100                                         PAD1_poll(0);
3101                                         *buf = PAD1_poll(0) << 8;
3102                                         *buf|= PAD1_poll(0);
3103                                 }
3104
3105                                 PAD2_startPoll(2);
3106                                 if (PAD2_poll(0x42) == 0x23) {
3107                                         PAD2_poll(0);
3108                                         *buf |= PAD2_poll(0) << 24;
3109                                         *buf |= PAD2_poll(0) << 16;
3110                                         PAD2_poll(0);
3111                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
3112                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
3113                                 } else {
3114                                         PAD2_poll(0);
3115                                         *buf |= PAD2_poll(0) << 24;
3116                                         *buf |= PAD2_poll(0) << 16;
3117                                 }
3118                         } else {
3119                                 u16 data;
3120
3121                                 PAD1_startPoll(1);
3122                                 PAD1_poll(0x42);
3123                                 PAD1_poll(0);
3124                                 data = PAD1_poll(0) << 8;
3125                                 data |= PAD1_poll(0);
3126
3127                                 if (NET_sendPadData(&data, 2) == -1)
3128                                         netError();
3129
3130                                 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
3131                                         netError();
3132                                 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3133                                         netError();
3134                         }
3135                 }
3136                 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3137                         psxBios_PADpoll(1);
3138
3139                         if (NET_sendPadData(pad_buf1, i) == -1)
3140                                 netError();
3141
3142                         if (NET_recvPadData(pad_buf1, 1) == -1)
3143                                 netError();
3144                         if (NET_recvPadData(pad_buf2, 2) == -1)
3145                                 netError();
3146                 } else {
3147                         if (!pad_stopped)  {
3148                                 if (pad_buf1) {
3149                                         psxBios_PADpoll(1);
3150                                 }
3151
3152                                 if (pad_buf2) {
3153                                         psxBios_PADpoll(2);
3154                                 }
3155                         }
3156                 }
3157
3158         if (psxHu32(0x1070) & 0x1) { // Vsync
3159                 if (RcEV[3][1].status == EvStACTIVE) {
3160                         softCall(RcEV[3][1].fhandler);
3161 //                      hwWrite32(0x1f801070, ~(1));
3162                 }
3163         }
3164
3165         if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3166                 int i;
3167
3168                 for (i = 0; i < 3; i++) {
3169                         if (psxHu32(0x1070) & (1 << (i + 4))) {
3170                                 if (RcEV[i][1].status == EvStACTIVE) {
3171                                         softCall(RcEV[i][1].fhandler);
3172                                 }
3173                                 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3174                         }
3175                 }
3176         }
3177 }
3178
3179 void psxBiosException() {
3180         int i;
3181
3182         switch (psxRegs.CP0.n.Cause & 0x3c) {
3183                 case 0x00: // Interrupt
3184 #ifdef PSXCPU_LOG
3185 //                      PSXCPU_LOG("interrupt\n");
3186 #endif
3187                         SaveRegs();
3188
3189                         sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3190
3191                         biosInterrupt();
3192
3193                         for (i = 0; i < 8; i++) {
3194                                 if (SysIntRP[i]) {
3195                                         u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3196
3197                                         s0 = queue[2];
3198                                         softCall(queue[1]);
3199                                 }
3200                         }
3201
3202                         if (jmp_int != NULL) {
3203                                 int i;
3204
3205                                 psxHwWrite32(0x1f801070, 0xffffffff);
3206
3207                                 ra = jmp_int[0];
3208                                 sp = jmp_int[1];
3209                                 fp = jmp_int[2];
3210                                 for (i = 0; i < 8; i++) // s0-s7
3211                                          psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3212                                 gp = jmp_int[11];
3213
3214                                 v0 = 1;
3215                                 pc0 = ra;
3216                                 return;
3217                         }
3218                         psxHwWrite16(0x1f801070, 0);
3219                         break;
3220
3221                 case 0x20: // Syscall
3222 #ifdef PSXCPU_LOG
3223                         PSXCPU_LOG("syscall exp %x\n", a0);
3224 #endif
3225                         switch (a0) {
3226                                 case 1: // EnterCritical - disable irq's
3227                                         /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3228                                         v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3229                                         psxRegs.CP0.n.Status &= ~0x404;
3230                                         break;
3231
3232                                 case 2: // ExitCritical - enable irq's
3233                                         psxRegs.CP0.n.Status |= 0x404;
3234                                         break;
3235                                 /* Normally this should cover SYS(00h, SYS(04h but they don't do anything relevant so... */
3236                                 default:
3237                                         break;
3238                         }
3239                         pc0 = psxRegs.CP0.n.EPC + 4;
3240
3241                         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3242                                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3243                         return;
3244
3245                 default:
3246 #ifdef PSXCPU_LOG
3247                         PSXCPU_LOG("unknown bios exception!\n");
3248 #endif
3249                         break;
3250         }
3251
3252         pc0 = psxRegs.CP0.n.EPC;
3253         if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3254
3255         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3256                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3257 }
3258
3259 #define bfreeze(ptr, size) { \
3260         if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3261         if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3262         base += size; \
3263 }
3264
3265 #define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3266 #define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3267
3268 #define bfreezepsxMptr(ptr, type) { \
3269         if (Mode == 1) { \
3270                 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3271                 else psxRu32ref(base) = 0; \
3272         } else { \
3273                 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3274                 else (ptr) = NULL; \
3275         } \
3276         base += sizeof(u32); \
3277 }
3278
3279 void psxBiosFreeze(int Mode) {
3280         u32 base = 0x40000;
3281
3282         pad_stopped = 0;
3283         bfreezepsxMptr(jmp_int, u32);
3284         bfreezepsxMptr(pad_buf, int);
3285         bfreezepsxMptr(pad_buf1, char);
3286         bfreezepsxMptr(pad_buf2, char);
3287         bfreezepsxMptr(heap_addr, u32);
3288         bfreezel(&pad_buf1len);
3289         bfreezel(&pad_buf2len);
3290         bfreezes(regs);
3291         bfreezes(SysIntRP);
3292         bfreezel(&CardState);
3293         bfreezes(Thread);
3294         bfreezel(&CurThread);
3295         bfreezes(FDesc);
3296         bfreezel(&card_active_chan);
3297 }