libpcsxcore/psxbios.c

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