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
 398         while (*p1++);
 399         --p1;
 400         while ((*p1++ = *p2++) != '\0');
 401
 402         v0 = a0; pc0 = ra;
 403 }
 404
 405 void psxBios_strncat() { // 0x16
 406         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 407         s32 n = a2;
 408
 409 #ifdef PSXBIOS_LOG
 410         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
 411 #endif
 412
 413         while (*p1++);
 414         --p1;
 415         while ((*p1++ = *p2++) != '\0') {
 416                 if (--n < 0) {
 417                         *--p1 = '\0';
 418                         break;
 419                 }
 420         }
 421
 422         v0 = a0; pc0 = ra;
 423 }
 424
 425 void psxBios_strcmp() { // 0x17
 426         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 427
 428 #ifdef PSXBIOS_LOG
 429         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
 430 #endif
 431
 432         while (*p1 == *p2++) {
 433                 if (*p1++ == '\0') {
 434                         v0 = 0;
 435                         pc0 = ra;
 436                         return;
 437                 }
 438         }
 439
 440         v0 = (*p1 - *--p2);
 441         pc0 = ra;
 442 }
 443
 444 void psxBios_strncmp() { // 0x18
 445         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 446         s32 n = a2;
 447
 448 #ifdef PSXBIOS_LOG
 449         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
 450 #endif
 451
 452         while (--n >= 0 && *p1 == *p2++) {
 453                 if (*p1++ == '\0') {
 454                         v0 = 0;
 455                         pc0 = ra;
 456                         return;
 457                 }
 458         }
 459
 460         v0 = (n < 0 ? 0 : *p1 - *--p2);
 461         pc0 = ra;
 462 }
 463
 464 void psxBios_strcpy() { // 0x19
 465         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 466         while ((*p1++ = *p2++) != '\0');
 467
 468         v0 = a0; pc0 = ra;
 469 }
 470
 471 void psxBios_strncpy() { // 0x1a
 472         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 473         s32 n = a2, i;
 474
 475         for (i = 0; i < n; i++) {
 476                 if ((*p1++ = *p2++) == '\0') {
 477                         while (++i < n) {
 478                                 *p1++ = '\0';
 479                         }
 480                         v0 = a0; pc0 = ra;
 481                         return;
 482                 }
 483         }
 484
 485         v0 = a0; pc0 = ra;
 486 }
 487
 488 void psxBios_strlen() { // 0x1b
 489         char *p = (char *)Ra0;
 490         v0 = 0;
 491         while (*p++) v0++;
 492         pc0 = ra;
 493 }
 494
 495 void psxBios_index() { // 0x1c
 496         char *p = (char *)Ra0;
 497
 498         do {
 499                 if (*p == a1) {
 500                         v0 = a0 + (p - (char *)Ra0);
 501                         pc0 = ra;
 502                         return;
 503                 }
 504         } while (*p++ != '\0');
 505
 506         v0 = 0; pc0 = ra;
 507 }
 508
 509 void psxBios_rindex() { // 0x1d
 510         char *p = (char *)Ra0;
 511
 512         v0 = 0;
 513
 514         do {
 515                 if (*p == a1)
 516                         v0 = a0 + (p - (char *)Ra0);
 517         } while (*p++ != '\0');
 518
 519         pc0 = ra;
 520 }
 521
 522 void psxBios_strchr() { // 0x1e
 523         psxBios_index();
 524 }
 525
 526 void psxBios_strrchr() { // 0x1f
 527         psxBios_rindex();
 528 }
 529
 530 void psxBios_strpbrk() { // 0x20
 531         char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
 532
 533         while ((c = *p1++) != '\0') {
 534                 for (scanp = p2; (sc = *scanp++) != '\0';) {
 535                         if (sc == c) {
 536                                 v0 = a0 + (p1 - 1 - (char *)Ra0);
 537                                 pc0 = ra;
 538                                 return;
 539                         }
 540                 }
 541         }
 542
 543         // BUG: return a0 instead of NULL if not found
 544         v0 = a0; pc0 = ra;
 545 }
 546
 547 void psxBios_strspn() { // 0x21
 548         char *p1, *p2;
 549
 550         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 551                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 552                 if (*p2 == '\0') break;
 553         }
 554
 555         v0 = p1 - (char *)Ra0; pc0 = ra;
 556 }
 557
 558 void psxBios_strcspn() { // 0x22
 559         char *p1, *p2;
 560
 561         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 562                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 563                 if (*p2 != '\0') break;
 564         }
 565
 566         v0 = p1 - (char *)Ra0; pc0 = ra;
 567 }
 568
 569 void psxBios_strtok() { // 0x23
 570         char *pcA0 = (char *)Ra0;
 571         char *pcRet = strtok(pcA0, (char *)Ra1);
 572         if (pcRet)
 573                 v0 = a0 + pcRet - pcA0;
 574         else
 575                 v0 = 0;
 576         pc0 = ra;
 577 }
 578
 579 void psxBios_strstr() { // 0x24
 580         char *p = (char *)Ra0, *p1, *p2;
 581
 582         while (*p != '\0') {
 583                 p1 = p;
 584                 p2 = (char *)Ra1;
 585
 586                 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
 587                         p1++; p2++;
 588                 }
 589
 590                 if (*p2 == '\0') {
 591                         v0 = a0 + (p - (char *)Ra0);
 592                         pc0 = ra;
 593                         return;
 594                 }
 595
 596                 p++;
 597         }
 598
 599         v0 = 0; pc0 = ra;
 600 }
 601
 602 void psxBios_toupper() { // 0x25
 603         v0 = (s8)(a0 & 0xff);
 604         if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
 605         pc0 = ra;
 606 }
 607
 608 void psxBios_tolower() { // 0x26
 609         v0 = (s8)(a0 & 0xff);
 610         if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
 611         pc0 = ra;
 612 }
 613
 614 void psxBios_bcopy() { // 0x27
 615         char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
 616         while ((s32)a2-- > 0) *p1++ = *p2++;
 617
 618         pc0 = ra;
 619 }
 620
 621 void psxBios_bzero() { // 0x28
 622         char *p = (char *)Ra0;
 623         while ((s32)a1-- > 0) *p++ = '\0';
 624
 625         pc0 = ra;
 626 }
 627
 628 void psxBios_bcmp() { // 0x29
 629         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 630
 631         if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
 632
 633         while ((s32)a2-- > 0) {
 634                 if (*p1++ != *p2++) {
 635                         v0 = *p1 - *p2; // BUG: compare the NEXT byte
 636                         pc0 = ra;
 637                         return;
 638                 }
 639         }
 640
 641         v0 = 0; pc0 = ra;
 642 }
 643
 644 void psxBios_memcpy() { // 0x2a
 645         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 646         while ((s32)a2-- > 0) *p1++ = *p2++;
 647
 648         v0 = a0; pc0 = ra;
 649 }
 650
 651 void psxBios_memset() { // 0x2b
 652         char *p = (char *)Ra0;
 653         while ((s32)a2-- > 0) *p++ = (char)a1;
 654
 655         a2 = 0;
 656         v0 = a0; pc0 = ra;
 657 }
 658
 659 void psxBios_memmove() { // 0x2c
 660         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 661
 662         if (p2 <= p1 && p2 + a2 > p1) {
 663                 a2++; // BUG: copy one more byte here
 664                 p1 += a2;
 665                 p2 += a2;
 666                 while ((s32)a2-- > 0) *--p1 = *--p2;
 667         } else {
 668                 while ((s32)a2-- > 0) *p1++ = *p2++;
 669         }
 670
 671         v0 = a0; pc0 = ra;
 672 }
 673
 674 void psxBios_memcmp() { // 0x2d
 675         psxBios_bcmp();
 676 }
 677
 678 void psxBios_memchr() { // 0x2e
 679         char *p = (char *)Ra0;
 680
 681         while ((s32)a2-- > 0) {
 682                 if (*p++ != (s8)a1) continue;
 683                 v0 = a0 + (p - (char *)Ra0 - 1);
 684                 pc0 = ra;
 685                 return;
 686         }
 687
 688         v0 = 0; pc0 = ra;
 689 }
 690
 691 void psxBios_rand() { // 0x2f
 692         u32 s = psxMu32(0x9010) * 1103515245 + 12345;
 693         v0 = (s >> 16) & 0x7fff;
 694         psxMu32ref(0x9010) = SWAPu32(s);
 695         pc0 = ra;
 696 }
 697
 698 void psxBios_srand() { // 0x30
 699         psxMu32ref(0x9010) = SWAPu32(a0);
 700         pc0 = ra;
 701 }
 702
 703 static u32 qscmpfunc, qswidth;
 704
 705 static inline int qscmp(char *a, char *b) {
 706         u32 sa0 = a0;
 707
 708         a0 = sa0 + (a - (char *)PSXM(sa0));
 709         a1 = sa0 + (b - (char *)PSXM(sa0));
 710
 711         softCall2(qscmpfunc);
 712
 713         a0 = sa0;
 714         return (s32)v0;
 715 }
 716
 717 static inline void qexchange(char *i, char *j) {
 718         char t;
 719         int n = qswidth;
 720
 721         do {
 722                 t = *i;
 723                 *i++ = *j;
 724                 *j++ = t;
 725         } while (--n);
 726 }
 727
 728 static inline void q3exchange(char *i, char *j, char *k) {
 729         char t;
 730         int n = qswidth;
 731
 732         do {
 733                 t = *i;
 734                 *i++ = *k;
 735                 *k++ = *j;
 736                 *j++ = t;
 737         } while (--n);
 738 }
 739
 740 static void qsort_main(char *a, char *l) {
 741         char *i, *j, *lp, *hp;
 742         int c;
 743         unsigned int n;
 744
 745 start:
 746         if ((n = l - a) <= qswidth)
 747                 return;
 748         n = qswidth * (n / (2 * qswidth));
 749         hp = lp = a + n;
 750         i = a;
 751         j = l - qswidth;
 752         while (TRUE) {
 753                 if (i < lp) {
 754                         if ((c = qscmp(i, lp)) == 0) {
 755                                 qexchange(i, lp -= qswidth);
 756                                 continue;
 757                         }
 758                         if (c < 0) {
 759                                 i += qswidth;
 760                                 continue;
 761                         }
 762                 }
 763
 764 loop:
 765                 if (j > hp) {
 766                         if ((c = qscmp(hp, j)) == 0) {
 767                                 qexchange(hp += qswidth, j);
 768                                 goto loop;
 769                         }
 770                         if (c > 0) {
 771                                 if (i == lp) {
 772                                         q3exchange(i, hp += qswidth, j);
 773                                         i = lp += qswidth;
 774                                         goto loop;
 775                                 }
 776                                 qexchange(i, j);
 777                                 j -= qswidth;
 778                                 i += qswidth;
 779                                 continue;
 780                         }
 781                         j -= qswidth;
 782                         goto loop;
 783                 }
 784
 785                 if (i == lp) {
 786                         if (lp - a >= l - hp) {
 787                                 qsort_main(hp + qswidth, l);
 788                                 l = lp;
 789                         } else {
 790                                 qsort_main(a, lp);
 791                                 a = hp + qswidth;
 792                         }
 793                         goto start;
 794                 }
 795
 796                 q3exchange(j, lp -= qswidth, i);
 797                 j = hp -= qswidth;
 798         }
 799 }
 800
 801 void psxBios_qsort() { // 0x31
 802         qswidth = a2;
 803         qscmpfunc = a3;
 804         qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
 805
 806         pc0 = ra;
 807 }
 808
 809 void psxBios_malloc() { // 0x33
 810         unsigned int *chunk, *newchunk = NULL;
 811         unsigned int dsize = 0, csize, cstat;
 812         int colflag;
 813 #ifdef PSXBIOS_LOG
 814         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
 815 #endif
 816
 817         // scan through heap and combine free chunks of space
 818         chunk = heap_addr;
 819         colflag = 0;
 820         while(chunk < heap_end) {
 821                 // get size and status of actual chunk
 822                 csize = ((u32)*chunk) & 0xfffffffc;
 823                 cstat = ((u32)*chunk) & 1;
 824
 825                 // it's a free chunk
 826                 if(cstat == 1) {
 827                         if(colflag == 0) {
 828                                 newchunk = chunk;
 829                                 dsize = csize;
 830                                 colflag = 1;                    // let's begin a new collection of free memory
 831                         }
 832                         else dsize += (csize+4);        // add the new size including header
 833                 }
 834                 // not a free chunk: did we start a collection ?
 835                 else {
 836                         if(colflag == 1) {                      // collection is over
 837                                 colflag = 0;
 838                                 *newchunk = SWAP32(dsize | 1);
 839                         }
 840                 }
 841
 842                 // next chunk
 843                 chunk = (u32*)((uptr)chunk + csize + 4);
 844         }
 845         // if neccessary free memory on end of heap
 846         if (colflag == 1)
 847                 *newchunk = SWAP32(dsize | 1);
 848
 849         chunk = heap_addr;
 850         csize = ((u32)*chunk) & 0xfffffffc;
 851         cstat = ((u32)*chunk) & 1;
 852         dsize = (a0 + 3) & 0xfffffffc;
 853
 854         // exit on uninitialized heap
 855         if (chunk == NULL) {
 856                 SysPrintf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
 857                 v0 = 0;
 858                 pc0 = ra;
 859                 return;
 860         }
 861
 862         // search an unused chunk that is big enough until the end of the heap
 863         while ((dsize > csize || cstat == 0) && chunk < heap_end ) {
 864                 chunk = (u32*)((uptr)chunk + csize + 4);
 865                 csize = ((u32)*chunk) & 0xfffffffc;
 866                 cstat = ((u32)*chunk) & 1;
 867         }
 868
 869         // catch out of memory
 870         if(chunk >= heap_end) { SysPrintf("malloc %x,%x: Out of memory error!\n", v0, a0); v0 = 0; pc0 = ra; return; }
 871
 872         // allocate memory
 873         if(dsize == csize) {
 874                 // chunk has same size
 875                 *chunk &= 0xfffffffc;
 876         }
 877         else {
 878                 // split free chunk
 879                 *chunk = SWAP32(dsize);
 880                 newchunk = (u32*)((uptr)chunk + dsize + 4);
 881                 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
 882         }
 883
 884         // return pointer to allocated memory
 885         v0 = ((unsigned long)chunk - (unsigned long)psxM) + 4;
 886         v0|= 0x80000000;
 887         SysPrintf ("malloc %x,%x\n", v0, a0);
 888         pc0 = ra;
 889 }
 890
 891 void psxBios_free() { // 0x34
 892
 893 #ifdef PSXBIOS_LOG
 894         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
 895 #endif
 896
 897         SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
 898
 899         *(u32*)(Ra0-4) |= 1;    // set chunk to free
 900         pc0 = ra;
 901 }
 902
 903 void psxBios_calloc() { // 0x37
 904         void *pv0;
 905 #ifdef PSXBIOS_LOG
 906         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
 907 #endif
 908
 909         a0 = a0 * a1;
 910         psxBios_malloc();
 911         pv0 = Rv0;
 912         if (pv0)
 913                 memset(pv0, 0, a0);
 914 }
 915
 916 void psxBios_realloc() { // 0x38
 917         u32 block = a0;
 918         u32 size = a1;
 919 #ifdef PSXBIOS_LOG
 920         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
 921 #endif
 922
 923         a0 = block;
 924         psxBios_free();
 925         a0 = size;
 926         psxBios_malloc();
 927 }
 928
 929
 930 /* InitHeap(void *block , int n) */
 931 void psxBios_InitHeap() { // 0x39
 932         unsigned int size;
 933
 934 #ifdef PSXBIOS_LOG
 935         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
 936 #endif
 937
 938         if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
 939         else size = a1;
 940
 941         size &= 0xfffffffc;
 942
 943         heap_addr = (u32 *)Ra0;
 944         heap_end = (u32 *)((u8 *)heap_addr + size);
 945         *heap_addr = SWAP32(size | 1);
 946
 947         SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
 948
 949         pc0 = ra;
 950 }
 951
 952 void psxBios_getchar() { //0x3b
 953         v0 = getchar(); pc0 = ra;
 954 }
 955
 956 void psxBios_printf() { // 0x3f
 957         char tmp[1024];
 958         char tmp2[1024];
 959         u32 save[4];
 960         char *ptmp = tmp;
 961         int n=1, i=0, j;
 962         void *psp;
 963
 964         psp = PSXM(sp);
 965         if (psp) {
 966                 memcpy(save, psp, 4 * 4);
 967                 psxMu32ref(sp) = SWAP32((u32)a0);
 968                 psxMu32ref(sp + 4) = SWAP32((u32)a1);
 969                 psxMu32ref(sp + 8) = SWAP32((u32)a2);
 970                 psxMu32ref(sp + 12) = SWAP32((u32)a3);
 971         }
 972
 973         while (Ra0[i]) {
 974                 switch (Ra0[i]) {
 975                         case '%':
 976                                 j = 0;
 977                                 tmp2[j++] = '%';
 978 _start:
 979                                 switch (Ra0[++i]) {
 980                                         case '.':
 981                                         case 'l':
 982                                                 tmp2[j++] = Ra0[i]; goto _start;
 983                                         default:
 984                                                 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
 985                                                         tmp2[j++] = Ra0[i];
 986                                                         goto _start;
 987                                                 }
 988                                                 break;
 989                                 }
 990                                 tmp2[j++] = Ra0[i];
 991                                 tmp2[j] = 0;
 992
 993                                 switch (Ra0[i]) {
 994                                         case 'f': case 'F':
 995                                                 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
 996                                         case 'a': case 'A':
 997                                         case 'e': case 'E':
 998                                         case 'g': case 'G':
 999                                                 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1000                                         case 'p':
1001                                         case 'i': case 'u':
1002                                         case 'd': case 'D':
1003                                         case 'o': case 'O':
1004                                         case 'x': case 'X':
1005                                                 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1006                                         case 'c':
1007                                                 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1008                                         case 's':
1009                                                 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1010                                         case '%':
1011                                                 *ptmp++ = Ra0[i]; break;
1012                                 }
1013                                 i++;
1014                                 break;
1015                         default:
1016                                 *ptmp++ = Ra0[i++];
1017                 }
1018         }
1019         *ptmp = 0;
1020
1021         if (psp)
1022                 memcpy(psp, save, 4 * 4);
1023
1024         SysPrintf("%s", tmp);
1025
1026         pc0 = ra;
1027 }
1028
1029 void psxBios_format() { // 0x41
1030         if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1031         {
1032                 CreateMcd(Config.Mcd1);
1033                 LoadMcd(1, Config.Mcd1);
1034                 v0 = 1;
1035         }
1036         else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1037         {
1038                 CreateMcd(Config.Mcd2);
1039                 LoadMcd(2, Config.Mcd2);
1040                 v0 = 1;
1041         }
1042         else
1043         {
1044                 v0 = 0;
1045         }
1046         pc0 = ra;
1047 }
1048
1049 /*
1050  *      long Load(char *name, struct EXEC *header);
1051  */
1052
1053 void psxBios_Load() { // 0x42
1054         EXE_HEADER eheader;
1055         void *pa1;
1056
1057 #ifdef PSXBIOS_LOG
1058         PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1059 #endif
1060
1061         pa1 = Ra1;
1062         if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1063                 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
1064                 v0 = 1;
1065         } else v0 = 0;
1066
1067         pc0 = ra;
1068 }
1069
1070 /*
1071  *      int Exec(struct EXEC *header , int argc , char **argv);
1072  */
1073
1074 void psxBios_Exec() { // 43
1075         EXEC *header = (EXEC*)Ra0;
1076         u32 tmp;
1077
1078 #ifdef PSXBIOS_LOG
1079         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1080 #endif
1081
1082         header->_sp = sp;
1083         header->_fp = fp;
1084         header->_sp = sp;
1085         header->_gp = gp;
1086         header->ret = ra;
1087         header->base = s0;
1088
1089         if (header->S_addr != 0) {
1090                 tmp = header->S_addr + header->s_size;
1091                 sp = tmp;
1092                 fp = sp;
1093         }
1094
1095         gp = header->gp0;
1096
1097         s0 = a0;
1098
1099         a0 = a1;
1100         a1 = a2;
1101
1102         ra = 0x8000;
1103         pc0 = header->_pc0;
1104 }
1105
1106 void psxBios_FlushCache() { // 44
1107 #ifdef PSXBIOS_LOG
1108         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1109 #endif
1110
1111         pc0 = ra;
1112 }
1113
1114 void psxBios_GPU_dw() { // 0x46
1115         int size;
1116         s32 *ptr;
1117
1118 #ifdef PSXBIOS_LOG
1119         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1120 #endif
1121
1122         GPU_writeData(0xa0000000);
1123         GPU_writeData((a1<<16)|(a0&0xffff));
1124         GPU_writeData((a3<<16)|(a2&0xffff));
1125         size = (a2*a3+1)/2;
1126         ptr = (s32*)PSXM(Rsp[4]);  //that is correct?
1127         do {
1128                 GPU_writeData(SWAP32(*ptr));
1129                 ptr++;
1130         } while(--size);
1131
1132         pc0 = ra;
1133 }
1134
1135 void psxBios_mem2vram() { // 0x47
1136         int size;
1137
1138         GPU_writeData(0xa0000000);
1139         GPU_writeData((a1<<16)|(a0&0xffff));
1140         GPU_writeData((a3<<16)|(a2&0xffff));
1141         size = (a2*a3+1)/2;
1142         GPU_writeStatus(0x04000002);
1143         psxHwWrite32(0x1f8010f4,0);
1144         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1145         psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1146         psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1147         psxHwWrite32(0x1f8010a8,0x01000201);
1148
1149         pc0 = ra;
1150 }
1151
1152 void psxBios_SendGPU() { // 0x48
1153         GPU_writeStatus(a0);
1154         gpuSyncPluginSR();
1155         pc0 = ra;
1156 }
1157
1158 void psxBios_GPU_cw() { // 0x49
1159         GPU_writeData(a0);
1160         pc0 = ra;
1161 }
1162
1163 void psxBios_GPU_cwb() { // 0x4a
1164         s32 *ptr = (s32*)Ra0;
1165         int size = a1;
1166         while(size--) {
1167                 GPU_writeData(SWAP32(*ptr));
1168                 ptr++;
1169         }
1170
1171         pc0 = ra;
1172 }
1173
1174 void psxBios_GPU_SendPackets() { //4b:
1175         GPU_writeStatus(0x04000002);
1176         psxHwWrite32(0x1f8010f4,0);
1177         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1178         psxHwWrite32(0x1f8010a0,a0);
1179         psxHwWrite32(0x1f8010a4,0);
1180         psxHwWrite32(0x1f8010a8,0x010000401);
1181         pc0 = ra;
1182 }
1183
1184 void psxBios_sys_a0_4c() { // 0x4c GPU relate
1185         psxHwWrite32(0x1f8010a8,0x00000401);
1186         GPU_writeData(0x0400000);
1187         GPU_writeData(0x0200000);
1188         GPU_writeData(0x0100000);
1189
1190         pc0 = ra;
1191 }
1192
1193 void psxBios_GPU_GetGPUStatus() { // 0x4d
1194         v0 = GPU_readStatus();
1195         pc0 = ra;
1196 }
1197
1198 #undef s_addr
1199
1200 void psxBios_LoadExec() { // 51
1201         EXEC *header = (EXEC*)PSXM(0xf000);
1202         u32 s_addr, s_size;
1203
1204 #ifdef PSXBIOS_LOG
1205         PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1206 #endif
1207         s_addr = a1; s_size = a2;
1208
1209         a1 = 0xf000;
1210         psxBios_Load();
1211
1212         header->S_addr = s_addr;
1213         header->s_size = s_size;
1214
1215         a0 = 0xf000; a1 = 0; a2 = 0;
1216         psxBios_Exec();
1217 }
1218
1219 void psxBios__bu_init() { // 70
1220 #ifdef PSXBIOS_LOG
1221         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1222 #endif
1223
1224         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1225         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1226
1227         pc0 = ra;
1228 }
1229
1230 void psxBios__96_init() { // 71
1231 #ifdef PSXBIOS_LOG
1232         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1233 #endif
1234
1235         pc0 = ra;
1236 }
1237
1238 void psxBios__96_remove() { // 72
1239 #ifdef PSXBIOS_LOG
1240         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1241 #endif
1242
1243         pc0 = ra;
1244 }
1245
1246 void psxBios_SetMem() { // 9f
1247         u32 new = psxHu32(0x1060);
1248
1249 #ifdef PSXBIOS_LOG
1250         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1251 #endif
1252
1253         switch(a0) {
1254                 case 2:
1255                         psxHu32ref(0x1060) = SWAP32(new);
1256                         psxMu32ref(0x060) = a0;
1257                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1258                         break;
1259
1260                 case 8:
1261                         psxHu32ref(0x1060) = SWAP32(new | 0x300);
1262                         psxMu32ref(0x060) = a0;
1263                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1264
1265                 default:
1266                         SysPrintf("Effective memory must be 2/8 MBytes\n");
1267                 break;
1268         }
1269
1270         pc0 = ra;
1271 }
1272
1273 void psxBios__card_info() { // ab
1274 #ifdef PSXBIOS_LOG
1275         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1276 #endif
1277
1278         card_active_chan = a0;
1279
1280 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1281         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1282
1283         v0 = 1; pc0 = ra;
1284 }
1285
1286 void psxBios__card_load() { // ac
1287 #ifdef PSXBIOS_LOG
1288         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1289 #endif
1290
1291         card_active_chan = a0;
1292
1293 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1294         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1295
1296         v0 = 1; pc0 = ra;
1297 }
1298
1299 /* System calls B0 */
1300
1301 void psxBios_SetRCnt() { // 02
1302 #ifdef PSXBIOS_LOG
1303         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1304 #endif
1305
1306         a0&= 0x3;
1307         if (a0 != 3) {
1308                 u32 mode=0;
1309
1310                 psxRcntWtarget(a0, a1);
1311                 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1312                 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1313                 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1314                 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1315                 else         { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1316
1317                 psxRcntWmode(a0, mode);
1318         }
1319         pc0 = ra;
1320 }
1321
1322 void psxBios_GetRCnt() { // 03
1323 #ifdef PSXBIOS_LOG
1324         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1325 #endif
1326
1327         a0&= 0x3;
1328         if (a0 != 3) v0 = psxRcntRcount(a0);
1329         else v0 = 0;
1330         pc0 = ra;
1331 }
1332
1333 void psxBios_StartRCnt() { // 04
1334 #ifdef PSXBIOS_LOG
1335         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1336 #endif
1337
1338         a0&= 0x3;
1339         if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1340         else psxHu32ref(0x1074)|= SWAPu32(0x1);
1341         v0 = 1; pc0 = ra;
1342 }
1343
1344 void psxBios_StopRCnt() { // 05
1345 #ifdef PSXBIOS_LOG
1346         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1347 #endif
1348
1349         a0&= 0x3;
1350         if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1351         else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1352         pc0 = ra;
1353 }
1354
1355 void psxBios_ResetRCnt() { // 06
1356 #ifdef PSXBIOS_LOG
1357         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1358 #endif
1359
1360         a0&= 0x3;
1361         if (a0 != 3) {
1362                 psxRcntWmode(a0, 0);
1363                 psxRcntWtarget(a0, 0);
1364                 psxRcntWcount(a0, 0);
1365         }
1366         pc0 = ra;
1367 }
1368
1369
1370 /* gets ev for use with Event */
1371 #define GetEv() \
1372         ev = (a0 >> 24) & 0xf; \
1373         if (ev == 0xf) ev = 0x5; \
1374         ev*= 32; \
1375         ev+= a0&0x1f;
1376
1377 /* gets spec for use with Event */
1378 #define GetSpec() \
1379         spec = 0; \
1380         switch (a1) { \
1381                 case 0x0301: spec = 16; break; \
1382                 case 0x0302: spec = 17; break; \
1383                 default: \
1384                         for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1385                         break; \
1386         }
1387
1388 void psxBios_DeliverEvent() { // 07
1389         int ev, spec;
1390         int i;
1391
1392         GetEv();
1393         GetSpec();
1394
1395 #ifdef PSXBIOS_LOG
1396         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1397 #endif
1398
1399         DeliverEvent(ev, spec);
1400
1401         pc0 = ra;
1402 }
1403
1404 void psxBios_OpenEvent() { // 08
1405         int ev, spec;
1406         int i;
1407
1408         GetEv();
1409         GetSpec();
1410
1411 #ifdef PSXBIOS_LOG
1412         PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1413 #endif
1414
1415         Event[ev][spec].status = EvStWAIT;
1416         Event[ev][spec].mode = a2;
1417         Event[ev][spec].fhandler = a3;
1418
1419         v0 = ev | (spec << 8);
1420         pc0 = ra;
1421 }
1422
1423 void psxBios_CloseEvent() { // 09
1424         int ev, spec;
1425
1426         ev   = a0 & 0xff;
1427         spec = (a0 >> 8) & 0xff;
1428
1429 #ifdef PSXBIOS_LOG
1430         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1431 #endif
1432
1433         Event[ev][spec].status = EvStUNUSED;
1434
1435         v0 = 1; pc0 = ra;
1436 }
1437
1438 void psxBios_WaitEvent() { // 0a
1439         int ev, spec;
1440
1441         ev   = a0 & 0xff;
1442         spec = (a0 >> 8) & 0xff;
1443
1444 #ifdef PSXBIOS_LOG
1445         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1446 #endif
1447
1448         Event[ev][spec].status = EvStACTIVE;
1449
1450         v0 = 1; pc0 = ra;
1451 }
1452
1453 void psxBios_TestEvent() { // 0b
1454         int ev, spec;
1455
1456         ev   = a0 & 0xff;
1457         spec = (a0 >> 8) & 0xff;
1458
1459         if (Event[ev][spec].status == EvStALREADY) {
1460                 Event[ev][spec].status = EvStACTIVE; v0 = 1;
1461         } else v0 = 0;
1462
1463 #ifdef PSXBIOS_LOG
1464         PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1465 #endif
1466
1467         pc0 = ra;
1468 }
1469
1470 void psxBios_EnableEvent() { // 0c
1471         int ev, spec;
1472
1473         ev   = a0 & 0xff;
1474         spec = (a0 >> 8) & 0xff;
1475
1476 #ifdef PSXBIOS_LOG
1477         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1478 #endif
1479
1480         Event[ev][spec].status = EvStACTIVE;
1481
1482         v0 = 1; pc0 = ra;
1483 }
1484
1485 void psxBios_DisableEvent() { // 0d
1486         int ev, spec;
1487
1488         ev   = a0 & 0xff;
1489         spec = (a0 >> 8) & 0xff;
1490
1491 #ifdef PSXBIOS_LOG
1492         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1493 #endif
1494
1495         Event[ev][spec].status = EvStWAIT;
1496
1497         v0 = 1; pc0 = ra;
1498 }
1499
1500 /*
1501  *      long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1502  */
1503
1504 void psxBios_OpenTh() { // 0e
1505         int th;
1506
1507         for (th=1; th<8; th++)
1508                 if (Thread[th].status == 0) break;
1509
1510 #ifdef PSXBIOS_LOG
1511         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1512 #endif
1513
1514         Thread[th].status = 1;
1515         Thread[th].func    = a0;
1516         Thread[th].reg[29] = a1;
1517         Thread[th].reg[28] = a2;
1518
1519         v0 = th; pc0 = ra;
1520 }
1521
1522 /*
1523  *      int CloseTh(long thread);
1524  */
1525
1526 void psxBios_CloseTh() { // 0f
1527         int th = a0 & 0xff;
1528
1529 #ifdef PSXBIOS_LOG
1530         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1531 #endif
1532
1533         if (Thread[th].status == 0) {
1534                 v0 = 0;
1535         } else {
1536                 Thread[th].status = 0;
1537                 v0 = 1;
1538         }
1539
1540         pc0 = ra;
1541 }
1542
1543 /*
1544  *      int ChangeTh(long thread);
1545  */
1546
1547 void psxBios_ChangeTh() { // 10
1548         int th = a0 & 0xff;
1549
1550 #ifdef PSXBIOS_LOG
1551 //      PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1552 #endif
1553
1554         if (Thread[th].status == 0 || CurThread == th) {
1555                 v0 = 0;
1556
1557                 pc0 = ra;
1558         } else {
1559                 v0 = 1;
1560
1561                 if (Thread[CurThread].status == 2) {
1562                         Thread[CurThread].status = 1;
1563                         Thread[CurThread].func = ra;
1564                         memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1565                 }
1566
1567                 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1568                 pc0 = Thread[th].func;
1569                 Thread[th].status = 2;
1570                 CurThread = th;
1571         }
1572 }
1573
1574 void psxBios_InitPAD() { // 0x12
1575 #ifdef PSXBIOS_LOG
1576         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1577 #endif
1578
1579         pad_buf1 = (char*)Ra0;
1580         pad_buf1len = a1;
1581         pad_buf2 = (char*)Ra2;
1582         pad_buf2len = a3;
1583
1584         v0 = 1; pc0 = ra;
1585 }
1586
1587 void psxBios_StartPAD() { // 13
1588 #ifdef PSXBIOS_LOG
1589         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1590 #endif
1591
1592         psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1593         psxRegs.CP0.n.Status |= 0x401;
1594         pc0 = ra;
1595 }
1596
1597 void psxBios_StopPAD() { // 14
1598 #ifdef PSXBIOS_LOG
1599         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1600 #endif
1601
1602         pad_buf1 = NULL;
1603         pad_buf2 = NULL;
1604         pc0 = ra;
1605 }
1606
1607 void psxBios_PAD_init() { // 15
1608 #ifdef PSXBIOS_LOG
1609         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1610 #endif
1611         psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1612         pad_buf = (int *)Ra1;
1613         *pad_buf = -1;
1614         psxRegs.CP0.n.Status |= 0x401;
1615         pc0 = ra;
1616 }
1617
1618 void psxBios_PAD_dr() { // 16
1619 #ifdef PSXBIOS_LOG
1620         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1621 #endif
1622
1623         v0 = -1; pc0 = ra;
1624 }
1625
1626 void psxBios_ReturnFromException() { // 17
1627         LoadRegs();
1628
1629         pc0 = psxRegs.CP0.n.EPC;
1630         if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1631
1632         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1633                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1634 }
1635
1636 void psxBios_ResetEntryInt() { // 18
1637 #ifdef PSXBIOS_LOG
1638         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1639 #endif
1640
1641         jmp_int = NULL;
1642         pc0 = ra;
1643 }
1644
1645 void psxBios_HookEntryInt() { // 19
1646 #ifdef PSXBIOS_LOG
1647         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1648 #endif
1649
1650         jmp_int = (u32*)Ra0;
1651         pc0 = ra;
1652 }
1653
1654 void psxBios_UnDeliverEvent() { // 0x20
1655         int ev, spec;
1656         int i;
1657
1658         GetEv();
1659         GetSpec();
1660
1661 #ifdef PSXBIOS_LOG
1662         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1663 #endif
1664
1665         if (Event[ev][spec].status == EvStALREADY &&
1666                 Event[ev][spec].mode == EvMdNOINTR)
1667                 Event[ev][spec].status = EvStACTIVE;
1668
1669         pc0 = ra;
1670 }
1671
1672 #define buopen(mcd) { \
1673         strcpy(FDesc[1 + mcd].name, Ra0+5); \
1674         FDesc[1 + mcd].offset = 0; \
1675         FDesc[1 + mcd].mode   = a1; \
1676  \
1677         for (i=1; i<16; i++) { \
1678                 ptr = Mcd##mcd##Data + 128 * i; \
1679                 if ((*ptr & 0xF0) != 0x50) continue; \
1680                 if (strcmp(FDesc[1 + mcd].name, ptr+0xa)) continue; \
1681                 FDesc[1 + mcd].mcfile = i; \
1682                 SysPrintf("open %s\n", ptr+0xa); \
1683                 v0 = 1 + mcd; \
1684                 break; \
1685         } \
1686         if (a1 & 0x200 && v0 == -1) { /* FCREAT */ \
1687                 for (i=1; i<16; i++) { \
1688                         int j, xor = 0; \
1689  \
1690                         ptr = Mcd##mcd##Data + 128 * i; \
1691                         if ((*ptr & 0xF0) == 0x50) continue; \
1692                         ptr[0] = 0x50 | (u8)(a1 >> 16); \
1693                         ptr[4] = 0x00; \
1694                         ptr[5] = 0x20; \
1695                         ptr[6] = 0x00; \
1696                         ptr[7] = 0x00; \
1697                         ptr[8] = 'B'; \
1698                         ptr[9] = 'I'; \
1699                         strcpy(ptr+0xa, FDesc[1 + mcd].name); \
1700                         for (j=0; j<127; j++) xor^= ptr[j]; \
1701                         ptr[127] = xor; \
1702                         FDesc[1 + mcd].mcfile = i; \
1703                         SysPrintf("openC %s\n", ptr); \
1704                         v0 = 1 + mcd; \
1705                         SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 128); \
1706                         break; \
1707                 } \
1708         } \
1709 }
1710
1711 /*
1712  *      int open(char *name , int mode);
1713  */
1714
1715 void psxBios_open() { // 0x32
1716         int i;
1717         char *ptr;
1718         void *pa0 = Ra0;
1719
1720 #ifdef PSXBIOS_LOG
1721         PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
1722 #endif
1723
1724         v0 = -1;
1725
1726         if (pa0) {
1727                 if (!strncmp(pa0, "bu00", 4)) {
1728                         buopen(1);
1729                 }
1730
1731                 if (!strncmp(pa0, "bu10", 4)) {
1732                         buopen(2);
1733                 }
1734         }
1735
1736         pc0 = ra;
1737 }
1738
1739 /*
1740  *      int lseek(int fd , int offset , int whence);
1741  */
1742
1743 void psxBios_lseek() { // 0x33
1744 #ifdef PSXBIOS_LOG
1745         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
1746 #endif
1747
1748         switch (a2) {
1749                 case 0: // SEEK_SET
1750                         FDesc[a0].offset = a1;
1751                         v0 = a1;
1752 //                      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1753 //                      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1754                         break;
1755
1756                 case 1: // SEEK_CUR
1757                         FDesc[a0].offset+= a1;
1758                         v0 = FDesc[a0].offset;
1759                         break;
1760         }
1761
1762         pc0 = ra;
1763 }
1764
1765 #define buread(Ra1, mcd) { \
1766         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); \
1767         ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
1768         memcpy(Ra1, ptr, a2); \
1769         if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
1770         else v0 = a2; \
1771         FDesc[1 + mcd].offset += v0; \
1772         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
1773         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
1774 }
1775
1776 /*
1777  *      int read(int fd , void *buf , int nbytes);
1778  */
1779
1780 void psxBios_read() { // 0x34
1781         char *ptr;
1782         void *pa1 = Ra1;
1783
1784 #ifdef PSXBIOS_LOG
1785         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
1786 #endif
1787
1788         v0 = -1;
1789
1790         if (pa1) {
1791                 switch (a0) {
1792                         case 2: buread(pa1, 1); break;
1793                         case 3: buread(pa1, 2); break;
1794                 }
1795         }
1796
1797         pc0 = ra;
1798 }
1799
1800 #define buwrite(Ra1, mcd) { \
1801         u32 offset =  + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
1802         SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
1803         ptr = Mcd##mcd##Data + offset; \
1804         memcpy(ptr, Ra1, a2); \
1805         FDesc[1 + mcd].offset += a2; \
1806         SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, offset, a2); \
1807         if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
1808         else v0 = a2; \
1809         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
1810         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
1811 }
1812
1813 /*
1814  *      int write(int fd , void *buf , int nbytes);
1815  */
1816
1817 void psxBios_write() { // 0x35/0x03
1818         char *ptr;
1819         void *pa1 = Ra1;
1820
1821 #ifdef PSXBIOS_LOG
1822         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
1823 #endif
1824
1825         v0 = -1;
1826         if (!pa1) {
1827                 pc0 = ra;
1828                 return;
1829         }
1830
1831         if (a0 == 1) { // stdout
1832                 char *ptr = pa1;
1833
1834                 v0 = a2;
1835                 while (a2 > 0) {
1836                         SysPrintf("%c", *ptr++); a2--;
1837                 }
1838                 pc0 = ra; return;
1839         }
1840
1841         switch (a0) {
1842                 case 2: buwrite(pa1, 1); break;
1843                 case 3: buwrite(pa1, 2); break;
1844         }
1845
1846         pc0 = ra;
1847 }
1848
1849 /*
1850  *      int close(int fd);
1851  */
1852
1853 void psxBios_close() { // 0x36
1854 #ifdef PSXBIOS_LOG
1855         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
1856 #endif
1857
1858         v0 = a0;
1859         pc0 = ra;
1860 }
1861
1862 void psxBios_putchar() { // 3d
1863         SysPrintf("%c", (char)a0);
1864         pc0 = ra;
1865 }
1866
1867 void psxBios_puts() { // 3e/3f
1868         SysPrintf("%s", Ra0);
1869         pc0 = ra;
1870 }
1871
1872 char ffile[64], *pfile;
1873 int nfile;
1874
1875 #define bufile(mcd) { \
1876         while (nfile < 16) { \
1877                 int match=1; \
1878  \
1879                 ptr = Mcd##mcd##Data + 128 * nfile; \
1880                 nfile++; \
1881                 if ((*ptr & 0xF0) != 0x50) continue; \
1882                 ptr+= 0xa; \
1883                 if (pfile[0] == 0) { \
1884                         strncpy(dir->name, ptr, sizeof(dir->name)); \
1885                         dir->name[sizeof(dir->name) - 1] = '\0'; \
1886                 } else for (i=0; i<20; i++) { \
1887                         if (pfile[i] == ptr[i]) { \
1888                                 dir->name[i] = ptr[i]; \
1889                                 if (ptr[i] == 0) break; else continue; } \
1890                         if (pfile[i] == '?') { \
1891                                 dir->name[i] = ptr[i]; continue; } \
1892                         if (pfile[i] == '*') { \
1893                                 strcpy(dir->name+i, ptr+i); break; } \
1894                         match = 0; break; \
1895                 } \
1896                 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
1897                 if (match == 0) continue; \
1898                 dir->size = 8192; \
1899                 v0 = _dir; \
1900                 break; \
1901         } \
1902 }
1903
1904 /*
1905  *      struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
1906  */
1907
1908 void psxBios_firstfile() { // 42
1909         struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
1910         void *pa0 = Ra0;
1911         u32 _dir = a1;
1912         char *ptr;
1913         int i;
1914
1915 #ifdef PSXBIOS_LOG
1916         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
1917 #endif
1918
1919         v0 = 0;
1920
1921         if (pa0) {
1922                 strcpy(ffile, pa0);
1923                 pfile = ffile+5;
1924                 nfile = 1;
1925                 if (!strncmp(pa0, "bu00", 4)) {
1926                         bufile(1);
1927                 } else if (!strncmp(pa0, "bu10", 4)) {
1928                         bufile(2);
1929                 }
1930         }
1931
1932         // firstfile() calls _card_read() internally, so deliver it's event
1933         DeliverEvent(0x11, 0x2);
1934
1935         pc0 = ra;
1936 }
1937
1938 /*
1939  *      struct DIRENTRY* nextfile(struct DIRENTRY *dir);
1940  */
1941
1942 void psxBios_nextfile() { // 43
1943         struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
1944         u32 _dir = a0;
1945         char *ptr;
1946         int i;
1947
1948 #ifdef PSXBIOS_LOG
1949         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
1950 #endif
1951
1952         v0 = 0;
1953
1954         if (!strncmp(ffile, "bu00", 4)) {
1955                 bufile(1);
1956         }
1957
1958         if (!strncmp(ffile, "bu10", 4)) {
1959                 bufile(2);
1960         }
1961
1962         pc0 = ra;
1963 }
1964
1965 #define burename(mcd) { \
1966         for (i=1; i<16; i++) { \
1967                 int namelen, j, xor = 0; \
1968                 ptr = Mcd##mcd##Data + 128 * i; \
1969                 if ((*ptr & 0xF0) != 0x50) continue; \
1970                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
1971                 namelen = strlen(Ra1+5); \
1972                 memcpy(ptr+0xa, Ra1+5, namelen); \
1973                 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
1974                 for (j=0; j<127; j++) xor^= ptr[j]; \
1975                 ptr[127] = xor; \
1976                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
1977                 v0 = 1; \
1978                 break; \
1979         } \
1980 }
1981
1982 /*
1983  *      int rename(char *old, char *new);
1984  */
1985
1986 void psxBios_rename() { // 44
1987         void *pa0 = Ra0;
1988         void *pa1 = Ra1;
1989         char *ptr;
1990         int i;
1991
1992 #ifdef PSXBIOS_LOG
1993         PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
1994 #endif
1995
1996         v0 = 0;
1997
1998         if (pa0 && pa1) {
1999                 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2000                         burename(1);
2001                 }
2002
2003                 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2004                         burename(2);
2005                 }
2006         }
2007
2008         pc0 = ra;
2009 }
2010
2011
2012 #define budelete(mcd) { \
2013         for (i=1; i<16; i++) { \
2014                 ptr = Mcd##mcd##Data + 128 * i; \
2015                 if ((*ptr & 0xF0) != 0x50) continue; \
2016                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2017                 *ptr = (*ptr & 0xf) | 0xA0; \
2018                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2019                 SysPrintf("delete %s\n", ptr+0xa); \
2020                 v0 = 1; \
2021                 break; \
2022         } \
2023 }
2024
2025 /*
2026  *      int delete(char *name);
2027  */
2028
2029 void psxBios_delete() { // 45
2030         void *pa0 = Ra0;
2031         char *ptr;
2032         int i;
2033
2034 #ifdef PSXBIOS_LOG
2035         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2036 #endif
2037
2038         v0 = 0;
2039
2040         if (pa0) {
2041                 if (!strncmp(pa0, "bu00", 4)) {
2042                         budelete(1);
2043                 }
2044
2045                 if (!strncmp(pa0, "bu10", 4)) {
2046                         budelete(2);
2047                 }
2048         }
2049
2050         pc0 = ra;
2051 }
2052
2053 void psxBios_InitCARD() { // 4a
2054 #ifdef PSXBIOS_LOG
2055         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2056 #endif
2057
2058         CardState = 0;
2059
2060         pc0 = ra;
2061 }
2062
2063 void psxBios_StartCARD() { // 4b
2064 #ifdef PSXBIOS_LOG
2065         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2066 #endif
2067
2068         if (CardState == 0) CardState = 1;
2069
2070         pc0 = ra;
2071 }
2072
2073 void psxBios_StopCARD() { // 4c
2074 #ifdef PSXBIOS_LOG
2075         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2076 #endif
2077
2078         if (CardState == 1) CardState = 0;
2079
2080         pc0 = ra;
2081 }
2082
2083 void psxBios__card_write() { // 0x4e
2084         void *pa2 = Ra2;
2085         int port;
2086
2087 #ifdef PSXBIOS_LOG
2088         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2089 #endif
2090
2091         card_active_chan = a0;
2092         port = a0 >> 4;
2093
2094         if (pa2) {
2095                 if (port == 0) {
2096                         memcpy(Mcd1Data + a1 * 128, pa2, 128);
2097                         SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2098                 } else {
2099                         memcpy(Mcd2Data + a1 * 128, pa2, 128);
2100                         SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2101                 }
2102         }
2103
2104         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2105 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2106
2107         v0 = 1; pc0 = ra;
2108 }
2109
2110 void psxBios__card_read() { // 0x4f
2111         void *pa2 = Ra2;
2112         int port;
2113
2114 #ifdef PSXBIOS_LOG
2115         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2116 #endif
2117
2118         card_active_chan = a0;
2119         port = a0 >> 4;
2120
2121         if (pa2) {
2122                 if (port == 0) {
2123                         memcpy(pa2, Mcd1Data + a1 * 128, 128);
2124                 } else {
2125                         memcpy(pa2, Mcd2Data + a1 * 128, 128);
2126                 }
2127         }
2128
2129         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2130 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2131
2132         v0 = 1; pc0 = ra;
2133 }
2134
2135 void psxBios__new_card() { // 0x50
2136 #ifdef PSXBIOS_LOG
2137         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2138 #endif
2139
2140         pc0 = ra;
2141 }
2142
2143 void psxBios_Krom2RawAdd() { // 0x51
2144         int i = 0;
2145
2146         const u32 table_8140[][2] = {
2147                 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2148                 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2149                 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2150                 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2151                 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2152                 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2153                 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2154                 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2155                 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2156                 {0xffff, 0}
2157         };
2158
2159         const u32 table_889f[][2] = {
2160                 {0x889f, 0x3d68},  {0x8900, 0x40ec},  {0x897f, 0x4fb0},  {0x8a00, 0x56f4},
2161                 {0x8a7f, 0x65b8},  {0x8b00, 0x6cfc},  {0x8b7f, 0x7bc0},  {0x8c00, 0x8304},
2162                 {0x8c7f, 0x91c8},  {0x8d00, 0x990c},  {0x8d7f, 0xa7d0},  {0x8e00, 0xaf14},
2163                 {0x8e7f, 0xbdd8},  {0x8f00, 0xc51c},  {0x8f7f, 0xd3e0},  {0x9000, 0xdb24},
2164                 {0x907f, 0xe9e8},  {0x9100, 0xf12c},  {0x917f, 0xfff0},  {0x9200, 0x10734},
2165                 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2166                 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2167                 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2168                 {0xffff, 0}
2169         };
2170
2171         if (a0 >= 0x8140 && a0 <= 0x84be) {
2172                 while (table_8140[i][0] <= a0) i++;
2173                 a0 -= table_8140[i - 1][0];
2174                 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2175         } else if (a0 >= 0x889f && a0 <= 0x9872) {
2176                 while (table_889f[i][0] <= a0) i++;
2177                 a0 -= table_889f[i - 1][0];
2178                 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2179         } else {
2180                 v0 = 0xffffffff;
2181         }
2182
2183         pc0 = ra;
2184 }
2185
2186 void psxBios_GetC0Table() { // 56
2187 #ifdef PSXBIOS_LOG
2188         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2189 #endif
2190
2191         v0 = 0x674; pc0 = ra;
2192 }
2193
2194 void psxBios_GetB0Table() { // 57
2195 #ifdef PSXBIOS_LOG
2196         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2197 #endif
2198
2199         v0 = 0x874; pc0 = ra;
2200 }
2201
2202 void psxBios__card_chan() { // 0x58
2203 #ifdef PSXBIOS_LOG
2204         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2205 #endif
2206
2207         v0 = card_active_chan;
2208         pc0 = ra;
2209 }
2210
2211 void psxBios_ChangeClearPad() { // 5b
2212 #ifdef PSXBIOS_LOG
2213         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2214 #endif
2215
2216         pc0 = ra;
2217 }
2218
2219 /* System calls C0 */
2220
2221 /*
2222  * int SysEnqIntRP(int index , long *queue);
2223  */
2224
2225 void psxBios_SysEnqIntRP() { // 02
2226 #ifdef PSXBIOS_LOG
2227         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2228 #endif
2229
2230         SysIntRP[a0] = a1;
2231
2232         v0 = 0; pc0 = ra;
2233 }
2234
2235 /*
2236  * int SysDeqIntRP(int index , long *queue);
2237  */
2238
2239 void psxBios_SysDeqIntRP() { // 03
2240 #ifdef PSXBIOS_LOG
2241         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2242 #endif
2243
2244         SysIntRP[a0] = 0;
2245
2246         v0 = 0; pc0 = ra;
2247 }
2248
2249 void psxBios_ChangeClearRCnt() { // 0a
2250         u32 *ptr;
2251
2252 #ifdef PSXBIOS_LOG
2253         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2254 #endif
2255
2256         ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2257         v0 = *ptr;
2258         *ptr = a1;
2259
2260 //      psxRegs.CP0.n.Status|= 0x404;
2261         pc0 = ra;
2262 }
2263
2264 void psxBios_dummy() {
2265 #ifdef PSXBIOS_LOG
2266         PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2267 #endif
2268         pc0 = ra;
2269 }
2270
2271 void (*biosA0[256])();
2272 void (*biosB0[256])();
2273 void (*biosC0[256])();
2274
2275 #include "sjisfont.h"
2276
2277 void psxBiosInit() {
2278         u32 base, size;
2279         u32 *ptr;
2280         int i;
2281         uLongf len;
2282
2283         for(i = 0; i < 256; i++) {
2284                 biosA0[i] = NULL;
2285                 biosB0[i] = NULL;
2286                 biosC0[i] = NULL;
2287         }
2288         biosA0[0x3e] = psxBios_puts;
2289         biosA0[0x3f] = psxBios_printf;
2290
2291         biosB0[0x3d] = psxBios_putchar;
2292         biosB0[0x3f] = psxBios_puts;
2293
2294         if (!Config.HLE) return;
2295
2296         for(i = 0; i < 256; i++) {
2297                 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2298                 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2299                 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2300         }
2301
2302         biosA0[0x00] = psxBios_open;
2303         biosA0[0x01] = psxBios_lseek;
2304         biosA0[0x02] = psxBios_read;
2305         biosA0[0x03] = psxBios_write;
2306         biosA0[0x04] = psxBios_close;
2307         //biosA0[0x05] = psxBios_ioctl;
2308         //biosA0[0x06] = psxBios_exit;
2309         //biosA0[0x07] = psxBios_sys_a0_07;
2310         //biosA0[0x08] = psxBios_getc;
2311         //biosA0[0x09] = psxBios_putc;
2312         //biosA0[0x0a] = psxBios_todigit;
2313         //biosA0[0x0b] = psxBios_atof;
2314         //biosA0[0x0c] = psxBios_strtoul;
2315         //biosA0[0x0d] = psxBios_strtol;
2316         biosA0[0x0e] = psxBios_abs;
2317         biosA0[0x0f] = psxBios_labs;
2318         biosA0[0x10] = psxBios_atoi;
2319         biosA0[0x11] = psxBios_atol;
2320         //biosA0[0x12] = psxBios_atob;
2321         biosA0[0x13] = psxBios_setjmp;
2322         biosA0[0x14] = psxBios_longjmp;
2323         biosA0[0x15] = psxBios_strcat;
2324         biosA0[0x16] = psxBios_strncat;
2325         biosA0[0x17] = psxBios_strcmp;
2326         biosA0[0x18] = psxBios_strncmp;
2327         biosA0[0x19] = psxBios_strcpy;
2328         biosA0[0x1a] = psxBios_strncpy;
2329         biosA0[0x1b] = psxBios_strlen;
2330         biosA0[0x1c] = psxBios_index;
2331         biosA0[0x1d] = psxBios_rindex;
2332         biosA0[0x1e] = psxBios_strchr;
2333         biosA0[0x1f] = psxBios_strrchr;
2334         biosA0[0x20] = psxBios_strpbrk;
2335         biosA0[0x21] = psxBios_strspn;
2336         biosA0[0x22] = psxBios_strcspn;
2337         biosA0[0x23] = psxBios_strtok;
2338         biosA0[0x24] = psxBios_strstr;
2339         biosA0[0x25] = psxBios_toupper;
2340         biosA0[0x26] = psxBios_tolower;
2341         biosA0[0x27] = psxBios_bcopy;
2342         biosA0[0x28] = psxBios_bzero;
2343         biosA0[0x29] = psxBios_bcmp;
2344         biosA0[0x2a] = psxBios_memcpy;
2345         biosA0[0x2b] = psxBios_memset;
2346         biosA0[0x2c] = psxBios_memmove;
2347         biosA0[0x2d] = psxBios_memcmp;
2348         biosA0[0x2e] = psxBios_memchr;
2349         biosA0[0x2f] = psxBios_rand;
2350         biosA0[0x30] = psxBios_srand;
2351         biosA0[0x31] = psxBios_qsort;
2352         //biosA0[0x32] = psxBios_strtod;
2353         biosA0[0x33] = psxBios_malloc;
2354         biosA0[0x34] = psxBios_free;
2355         //biosA0[0x35] = psxBios_lsearch;
2356         //biosA0[0x36] = psxBios_bsearch;
2357         biosA0[0x37] = psxBios_calloc;
2358         biosA0[0x38] = psxBios_realloc;
2359         biosA0[0x39] = psxBios_InitHeap;
2360         //biosA0[0x3a] = psxBios__exit;
2361         biosA0[0x3b] = psxBios_getchar;
2362         biosA0[0x3c] = psxBios_putchar;
2363         //biosA0[0x3d] = psxBios_gets;
2364         //biosA0[0x40] = psxBios_sys_a0_40;
2365         //biosA0[0x41] = psxBios_LoadTest;
2366         biosA0[0x42] = psxBios_Load;
2367         biosA0[0x43] = psxBios_Exec;
2368         biosA0[0x44] = psxBios_FlushCache;
2369         //biosA0[0x45] = psxBios_InstallInterruptHandler;
2370         biosA0[0x46] = psxBios_GPU_dw;
2371         biosA0[0x47] = psxBios_mem2vram;
2372         biosA0[0x48] = psxBios_SendGPU;
2373         biosA0[0x49] = psxBios_GPU_cw;
2374         biosA0[0x4a] = psxBios_GPU_cwb;
2375         biosA0[0x4b] = psxBios_GPU_SendPackets;
2376         biosA0[0x4c] = psxBios_sys_a0_4c;
2377         biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2378         //biosA0[0x4e] = psxBios_GPU_sync;
2379         //biosA0[0x4f] = psxBios_sys_a0_4f;
2380         //biosA0[0x50] = psxBios_sys_a0_50;
2381         biosA0[0x51] = psxBios_LoadExec;
2382         //biosA0[0x52] = psxBios_GetSysSp;
2383         //biosA0[0x53] = psxBios_sys_a0_53;
2384         //biosA0[0x54] = psxBios__96_init_a54;
2385         //biosA0[0x55] = psxBios__bu_init_a55;
2386         //biosA0[0x56] = psxBios__96_remove_a56;
2387         //biosA0[0x57] = psxBios_sys_a0_57;
2388         //biosA0[0x58] = psxBios_sys_a0_58;
2389         //biosA0[0x59] = psxBios_sys_a0_59;
2390         //biosA0[0x5a] = psxBios_sys_a0_5a;
2391         //biosA0[0x5b] = psxBios_dev_tty_init;
2392         //biosA0[0x5c] = psxBios_dev_tty_open;
2393         //biosA0[0x5d] = psxBios_sys_a0_5d;
2394         //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2395         //biosA0[0x5f] = psxBios_dev_cd_open;
2396         //biosA0[0x60] = psxBios_dev_cd_read;
2397         //biosA0[0x61] = psxBios_dev_cd_close;
2398         //biosA0[0x62] = psxBios_dev_cd_firstfile;
2399         //biosA0[0x63] = psxBios_dev_cd_nextfile;
2400         //biosA0[0x64] = psxBios_dev_cd_chdir;
2401         //biosA0[0x65] = psxBios_dev_card_open;
2402         //biosA0[0x66] = psxBios_dev_card_read;
2403         //biosA0[0x67] = psxBios_dev_card_write;
2404         //biosA0[0x68] = psxBios_dev_card_close;
2405         //biosA0[0x69] = psxBios_dev_card_firstfile;
2406         //biosA0[0x6a] = psxBios_dev_card_nextfile;
2407         //biosA0[0x6b] = psxBios_dev_card_erase;
2408         //biosA0[0x6c] = psxBios_dev_card_undelete;
2409         //biosA0[0x6d] = psxBios_dev_card_format;
2410         //biosA0[0x6e] = psxBios_dev_card_rename;
2411         //biosA0[0x6f] = psxBios_dev_card_6f;
2412         biosA0[0x70] = psxBios__bu_init;
2413         biosA0[0x71] = psxBios__96_init;
2414         biosA0[0x72] = psxBios__96_remove;
2415         //biosA0[0x73] = psxBios_sys_a0_73;
2416         //biosA0[0x74] = psxBios_sys_a0_74;
2417         //biosA0[0x75] = psxBios_sys_a0_75;
2418         //biosA0[0x76] = psxBios_sys_a0_76;
2419         //biosA0[0x77] = psxBios_sys_a0_77;
2420         //biosA0[0x78] = psxBios__96_CdSeekL;
2421         //biosA0[0x79] = psxBios_sys_a0_79;
2422         //biosA0[0x7a] = psxBios_sys_a0_7a;
2423         //biosA0[0x7b] = psxBios_sys_a0_7b;
2424         //biosA0[0x7c] = psxBios__96_CdGetStatus;
2425         //biosA0[0x7d] = psxBios_sys_a0_7d;
2426         //biosA0[0x7e] = psxBios__96_CdRead;
2427         //biosA0[0x7f] = psxBios_sys_a0_7f;
2428         //biosA0[0x80] = psxBios_sys_a0_80;
2429         //biosA0[0x81] = psxBios_sys_a0_81;
2430         //biosA0[0x82] = psxBios_sys_a0_82;
2431         //biosA0[0x83] = psxBios_sys_a0_83;
2432         //biosA0[0x84] = psxBios_sys_a0_84;
2433         //biosA0[0x85] = psxBios__96_CdStop;
2434         //biosA0[0x86] = psxBios_sys_a0_86;
2435         //biosA0[0x87] = psxBios_sys_a0_87;
2436         //biosA0[0x88] = psxBios_sys_a0_88;
2437         //biosA0[0x89] = psxBios_sys_a0_89;
2438         //biosA0[0x8a] = psxBios_sys_a0_8a;
2439         //biosA0[0x8b] = psxBios_sys_a0_8b;
2440         //biosA0[0x8c] = psxBios_sys_a0_8c;
2441         //biosA0[0x8d] = psxBios_sys_a0_8d;
2442         //biosA0[0x8e] = psxBios_sys_a0_8e;
2443         //biosA0[0x8f] = psxBios_sys_a0_8f;
2444         //biosA0[0x90] = psxBios_sys_a0_90;
2445         //biosA0[0x91] = psxBios_sys_a0_91;
2446         //biosA0[0x92] = psxBios_sys_a0_92;
2447         //biosA0[0x93] = psxBios_sys_a0_93;
2448         //biosA0[0x94] = psxBios_sys_a0_94;
2449         //biosA0[0x95] = psxBios_sys_a0_95;
2450         //biosA0[0x96] = psxBios_AddCDROMDevice;
2451         //biosA0[0x97] = psxBios_AddMemCardDevide;
2452         //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2453         //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2454         //biosA0[0x9a] = psxBios_sys_a0_9a;
2455         //biosA0[0x9b] = psxBios_sys_a0_9b;
2456         //biosA0[0x9c] = psxBios_SetConf;
2457         //biosA0[0x9d] = psxBios_GetConf;
2458         //biosA0[0x9e] = psxBios_sys_a0_9e;
2459         biosA0[0x9f] = psxBios_SetMem;
2460         //biosA0[0xa0] = psxBios__boot;
2461         //biosA0[0xa1] = psxBios_SystemError;
2462         //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2463         //biosA0[0xa3] = psxBios_DequeueCdIntr;
2464         //biosA0[0xa4] = psxBios_sys_a0_a4;
2465         //biosA0[0xa5] = psxBios_ReadSector;
2466         //biosA0[0xa6] = psxBios_get_cd_status;
2467         //biosA0[0xa7] = psxBios_bufs_cb_0;
2468         //biosA0[0xa8] = psxBios_bufs_cb_1;
2469         //biosA0[0xa9] = psxBios_bufs_cb_2;
2470         //biosA0[0xaa] = psxBios_bufs_cb_3;
2471         biosA0[0xab] = psxBios__card_info;
2472         biosA0[0xac] = psxBios__card_load;
2473         //biosA0[0axd] = psxBios__card_auto;
2474         //biosA0[0xae] = psxBios_bufs_cd_4;
2475         //biosA0[0xaf] = psxBios_sys_a0_af;
2476         //biosA0[0xb0] = psxBios_sys_a0_b0;
2477         //biosA0[0xb1] = psxBios_sys_a0_b1;
2478         //biosA0[0xb2] = psxBios_do_a_long_jmp
2479         //biosA0[0xb3] = psxBios_sys_a0_b3;
2480         //biosA0[0xb4] = psxBios_sub_function;
2481 //*******************B0 CALLS****************************
2482         //biosB0[0x00] = psxBios_SysMalloc;
2483         //biosB0[0x01] = psxBios_sys_b0_01;
2484         biosB0[0x02] = psxBios_SetRCnt;
2485         biosB0[0x03] = psxBios_GetRCnt;
2486         biosB0[0x04] = psxBios_StartRCnt;
2487         biosB0[0x05] = psxBios_StopRCnt;
2488         biosB0[0x06] = psxBios_ResetRCnt;
2489         biosB0[0x07] = psxBios_DeliverEvent;
2490         biosB0[0x08] = psxBios_OpenEvent;
2491         biosB0[0x09] = psxBios_CloseEvent;
2492         biosB0[0x0a] = psxBios_WaitEvent;
2493         biosB0[0x0b] = psxBios_TestEvent;
2494         biosB0[0x0c] = psxBios_EnableEvent;
2495         biosB0[0x0d] = psxBios_DisableEvent;
2496         biosB0[0x0e] = psxBios_OpenTh;
2497         biosB0[0x0f] = psxBios_CloseTh;
2498         biosB0[0x10] = psxBios_ChangeTh;
2499         //biosB0[0x11] = psxBios_psxBios_b0_11;
2500         biosB0[0x12] = psxBios_InitPAD;
2501         biosB0[0x13] = psxBios_StartPAD;
2502         biosB0[0x14] = psxBios_StopPAD;
2503         biosB0[0x15] = psxBios_PAD_init;
2504         biosB0[0x16] = psxBios_PAD_dr;
2505         biosB0[0x17] = psxBios_ReturnFromException;
2506         biosB0[0x18] = psxBios_ResetEntryInt;
2507         biosB0[0x19] = psxBios_HookEntryInt;
2508         //biosB0[0x1a] = psxBios_sys_b0_1a;
2509         //biosB0[0x1b] = psxBios_sys_b0_1b;
2510         //biosB0[0x1c] = psxBios_sys_b0_1c;
2511         //biosB0[0x1d] = psxBios_sys_b0_1d;
2512         //biosB0[0x1e] = psxBios_sys_b0_1e;
2513         //biosB0[0x1f] = psxBios_sys_b0_1f;
2514         biosB0[0x20] = psxBios_UnDeliverEvent;
2515         //biosB0[0x21] = psxBios_sys_b0_21;
2516         //biosB0[0x22] = psxBios_sys_b0_22;
2517         //biosB0[0x23] = psxBios_sys_b0_23;
2518         //biosB0[0x24] = psxBios_sys_b0_24;
2519         //biosB0[0x25] = psxBios_sys_b0_25;
2520         //biosB0[0x26] = psxBios_sys_b0_26;
2521         //biosB0[0x27] = psxBios_sys_b0_27;
2522         //biosB0[0x28] = psxBios_sys_b0_28;
2523         //biosB0[0x29] = psxBios_sys_b0_29;
2524         //biosB0[0x2a] = psxBios_sys_b0_2a;
2525         //biosB0[0x2b] = psxBios_sys_b0_2b;
2526         //biosB0[0x2c] = psxBios_sys_b0_2c;
2527         //biosB0[0x2d] = psxBios_sys_b0_2d;
2528         //biosB0[0x2e] = psxBios_sys_b0_2e;
2529         //biosB0[0x2f] = psxBios_sys_b0_2f;
2530         //biosB0[0x30] = psxBios_sys_b0_30;
2531         //biosB0[0x31] = psxBios_sys_b0_31;
2532         biosB0[0x32] = psxBios_open;
2533         biosB0[0x33] = psxBios_lseek;
2534         biosB0[0x34] = psxBios_read;
2535         biosB0[0x35] = psxBios_write;
2536         biosB0[0x36] = psxBios_close;
2537         //biosB0[0x37] = psxBios_ioctl;
2538         //biosB0[0x38] = psxBios_exit;
2539         //biosB0[0x39] = psxBios_sys_b0_39;
2540         //biosB0[0x3a] = psxBios_getc;
2541         //biosB0[0x3b] = psxBios_putc;
2542         biosB0[0x3c] = psxBios_getchar;
2543         //biosB0[0x3e] = psxBios_gets;
2544         //biosB0[0x40] = psxBios_cd;
2545         biosB0[0x41] = psxBios_format;
2546         biosB0[0x42] = psxBios_firstfile;
2547         biosB0[0x43] = psxBios_nextfile;
2548         biosB0[0x44] = psxBios_rename;
2549         biosB0[0x45] = psxBios_delete;
2550         //biosB0[0x46] = psxBios_undelete;
2551         //biosB0[0x47] = psxBios_AddDevice;
2552         //biosB0[0x48] = psxBios_RemoteDevice;
2553         //biosB0[0x49] = psxBios_PrintInstalledDevices;
2554         biosB0[0x4a] = psxBios_InitCARD;
2555         biosB0[0x4b] = psxBios_StartCARD;
2556         biosB0[0x4c] = psxBios_StopCARD;
2557         //biosB0[0x4d] = psxBios_sys_b0_4d;
2558         biosB0[0x4e] = psxBios__card_write;
2559         biosB0[0x4f] = psxBios__card_read;
2560         biosB0[0x50] = psxBios__new_card;
2561         biosB0[0x51] = psxBios_Krom2RawAdd;
2562         //biosB0[0x52] = psxBios_sys_b0_52;
2563         //biosB0[0x53] = psxBios_sys_b0_53;
2564         //biosB0[0x54] = psxBios__get_errno;
2565         //biosB0[0x55] = psxBios__get_error;
2566         biosB0[0x56] = psxBios_GetC0Table;
2567         biosB0[0x57] = psxBios_GetB0Table;
2568         biosB0[0x58] = psxBios__card_chan;
2569         //biosB0[0x59] = psxBios_sys_b0_59;
2570         //biosB0[0x5a] = psxBios_sys_b0_5a;
2571         biosB0[0x5b] = psxBios_ChangeClearPad;
2572         //biosB0[0x5c] = psxBios__card_status;
2573         //biosB0[0x5d] = psxBios__card_wait;
2574 //*******************C0 CALLS****************************
2575         //biosC0[0x00] = psxBios_InitRCnt;
2576         //biosC0[0x01] = psxBios_InitException;
2577         biosC0[0x02] = psxBios_SysEnqIntRP;
2578         biosC0[0x03] = psxBios_SysDeqIntRP;
2579         //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2580         //biosC0[0x05] = psxBios_get_free_TCB_slot;
2581         //biosC0[0x06] = psxBios_ExceptionHandler;
2582         //biosC0[0x07] = psxBios_InstallExeptionHandler;
2583         //biosC0[0x08] = psxBios_SysInitMemory;
2584         //biosC0[0x09] = psxBios_SysInitKMem;
2585         biosC0[0x0a] = psxBios_ChangeClearRCnt;
2586         //biosC0[0x0b] = psxBios_SystemError;
2587         //biosC0[0x0c] = psxBios_InitDefInt;
2588         //biosC0[0x0d] = psxBios_sys_c0_0d;
2589         //biosC0[0x0e] = psxBios_sys_c0_0e;
2590         //biosC0[0x0f] = psxBios_sys_c0_0f;
2591         //biosC0[0x10] = psxBios_sys_c0_10;
2592         //biosC0[0x11] = psxBios_sys_c0_11;
2593         //biosC0[0x12] = psxBios_InstallDevices;
2594         //biosC0[0x13] = psxBios_FlushStfInOutPut;
2595         //biosC0[0x14] = psxBios_sys_c0_14;
2596         //biosC0[0x15] = psxBios__cdevinput;
2597         //biosC0[0x16] = psxBios__cdevscan;
2598         //biosC0[0x17] = psxBios__circgetc;
2599         //biosC0[0x18] = psxBios__circputc;
2600         //biosC0[0x19] = psxBios_ioabort;
2601         //biosC0[0x1a] = psxBios_sys_c0_1a
2602         //biosC0[0x1b] = psxBios_KernelRedirect;
2603         //biosC0[0x1c] = psxBios_PatchAOTable;
2604 //************** THE END ***************************************
2605 /**/
2606         base = 0x1000;
2607         size = sizeof(EvCB) * 32;
2608         Event = (void *)&psxR[base]; base += size * 6;
2609         memset(Event, 0, size * 6);
2610         HwEV = Event;
2611         EvEV = Event + 32;
2612         RcEV = Event + 32 * 2;
2613         UeEV = Event + 32 * 3;
2614         SwEV = Event + 32 * 4;
2615         ThEV = Event + 32 * 5;
2616
2617         ptr = (u32 *)&psxM[0x0874]; // b0 table
2618         ptr[0] = SWAPu32(0x4c54 - 0x884);
2619
2620         ptr = (u32 *)&psxM[0x0674]; // c0 table
2621         ptr[6] = SWAPu32(0xc80);
2622
2623         memset(SysIntRP, 0, sizeof(SysIntRP));
2624         memset(Thread, 0, sizeof(Thread));
2625         Thread[0].status = 2; // main thread
2626
2627         jmp_int = NULL;
2628         pad_buf = NULL;
2629         pad_buf1 = NULL;
2630         pad_buf2 = NULL;
2631         pad_buf1len = pad_buf2len = 0;
2632         heap_addr = NULL;
2633         heap_end = NULL;
2634         CardState = -1;
2635         CurThread = 0;
2636         memset(FDesc, 0, sizeof(FDesc));
2637
2638         psxMu32ref(0x0150) = SWAPu32(0x160);
2639         psxMu32ref(0x0154) = SWAPu32(0x320);
2640         psxMu32ref(0x0160) = SWAPu32(0x248);
2641         strcpy((char *)&psxM[0x248], "bu");
2642 /*      psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
2643         psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
2644         psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
2645         psxMu32ref(0x09e0) = SWAPu32(0x43d0);
2646         psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
2647 */
2648         // opcode HLE
2649         psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
2650         psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
2651         psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
2652         psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
2653         psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
2654         psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
2655         psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
2656         psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
2657         psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
2658         psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
2659
2660         // initial stack pointer for BIOS interrupt
2661         psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
2662
2663         // initial RNG seed
2664         psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
2665
2666         // fonts
2667         len = 0x80000 - 0x66000;
2668         uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
2669         len = 0x80000 - 0x69d68;
2670         uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
2671
2672         // memory size 2 MB
2673         psxHu32ref(0x1060) = SWAPu32(0x00000b88);
2674
2675         hleSoftCall = FALSE;
2676 }
2677
2678 void psxBiosShutdown() {
2679 }
2680
2681 #define psxBios_PADpoll(pad) { \
2682         PAD##pad##_startPoll(pad); \
2683         pad_buf##pad[0] = 0; \
2684         pad_buf##pad[1] = PAD##pad##_poll(0x42); \
2685         if (!(pad_buf##pad[1] & 0x0f)) { \
2686                 bufcount = 32; \
2687         } else { \
2688                 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
2689         } \
2690         PAD##pad##_poll(0); \
2691         i = 2; \
2692         while (bufcount--) { \
2693                 pad_buf##pad[i++] = PAD##pad##_poll(0); \
2694         } \
2695 }
2696
2697 void biosInterrupt() {
2698         int i, bufcount;
2699
2700 //      if (psxHu32(0x1070) & 0x1) { // Vsync
2701                 if (pad_buf != NULL) {
2702                         u32 *buf = (u32*)pad_buf;
2703
2704                         if (!Config.UseNet) {
2705                                 PAD1_startPoll(1);
2706                                 if (PAD1_poll(0x42) == 0x23) {
2707                                         PAD1_poll(0);
2708                                         *buf = PAD1_poll(0) << 8;
2709                                         *buf |= PAD1_poll(0);
2710                                         PAD1_poll(0);
2711                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
2712                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
2713                                 } else {
2714                                         PAD1_poll(0);
2715                                         *buf = PAD1_poll(0) << 8;
2716                                         *buf|= PAD1_poll(0);
2717                                 }
2718
2719                                 PAD2_startPoll(2);
2720                                 if (PAD2_poll(0x42) == 0x23) {
2721                                         PAD2_poll(0);
2722                                         *buf |= PAD2_poll(0) << 24;
2723                                         *buf |= PAD2_poll(0) << 16;
2724                                         PAD2_poll(0);
2725                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
2726                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
2727                                 } else {
2728                                         PAD2_poll(0);
2729                                         *buf |= PAD2_poll(0) << 24;
2730                                         *buf |= PAD2_poll(0) << 16;
2731                                 }
2732                         } else {
2733                                 u16 data;
2734
2735                                 PAD1_startPoll(1);
2736                                 PAD1_poll(0x42);
2737                                 PAD1_poll(0);
2738                                 data = PAD1_poll(0) << 8;
2739                                 data |= PAD1_poll(0);
2740
2741                                 if (NET_sendPadData(&data, 2) == -1)
2742                                         netError();
2743
2744                                 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
2745                                         netError();
2746                                 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
2747                                         netError();
2748                         }
2749                 }
2750                 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
2751                         psxBios_PADpoll(1);
2752
2753                         if (NET_sendPadData(pad_buf1, i) == -1)
2754                                 netError();
2755
2756                         if (NET_recvPadData(pad_buf1, 1) == -1)
2757                                 netError();
2758                         if (NET_recvPadData(pad_buf2, 2) == -1)
2759                                 netError();
2760                 } else {
2761                         if (pad_buf1) {
2762                                 psxBios_PADpoll(1);
2763                         }
2764
2765                         if (pad_buf2) {
2766                                 psxBios_PADpoll(2);
2767                         }
2768                 }
2769
2770         if (psxHu32(0x1070) & 0x1) { // Vsync
2771                 if (RcEV[3][1].status == EvStACTIVE) {
2772                         softCall(RcEV[3][1].fhandler);
2773 //                      hwWrite32(0x1f801070, ~(1));
2774                 }
2775         }
2776
2777         if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
2778                 int i;
2779
2780                 for (i = 0; i < 3; i++) {
2781                         if (psxHu32(0x1070) & (1 << (i + 4))) {
2782                                 if (RcEV[i][1].status == EvStACTIVE) {
2783                                         softCall(RcEV[i][1].fhandler);
2784                                 }
2785                                 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
2786                         }
2787                 }
2788         }
2789 }
2790
2791 void psxBiosException() {
2792         int i;
2793
2794         switch (psxRegs.CP0.n.Cause & 0x3c) {
2795                 case 0x00: // Interrupt
2796 #ifdef PSXCPU_LOG
2797 //                      PSXCPU_LOG("interrupt\n");
2798 #endif
2799                         SaveRegs();
2800
2801                         sp = psxMu32(0x6c80); // create new stack for interrupt handlers
2802
2803                         biosInterrupt();
2804
2805                         for (i = 0; i < 8; i++) {
2806                                 if (SysIntRP[i]) {
2807                                         u32 *queue = (u32 *)PSXM(SysIntRP[i]);
2808
2809                                         s0 = queue[2];
2810                                         softCall(queue[1]);
2811                                 }
2812                         }
2813
2814                         if (jmp_int != NULL) {
2815                                 int i;
2816
2817                                 psxHwWrite32(0x1f801070, 0xffffffff);
2818
2819                                 ra = jmp_int[0];
2820                                 sp = jmp_int[1];
2821                                 fp = jmp_int[2];
2822                                 for (i = 0; i < 8; i++) // s0-s7
2823                                          psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
2824                                 gp = jmp_int[11];
2825
2826                                 v0 = 1;
2827                                 pc0 = ra;
2828                                 return;
2829                         }
2830                         psxHwWrite16(0x1f801070, 0);
2831                         break;
2832
2833                 case 0x20: // Syscall
2834 #ifdef PSXCPU_LOG
2835                         PSXCPU_LOG("syscall exp %x\n", a0);
2836 #endif
2837                         switch (a0) {
2838                                 case 1: // EnterCritical - disable irq's
2839                                         psxRegs.CP0.n.Status &= ~0x404;
2840 v0=1;   // HDHOSHY experimental patch: Spongebob, Coldblood, fearEffect, Medievil2, Martian Gothic
2841                                         break;
2842
2843                                 case 2: // ExitCritical - enable irq's
2844                                         psxRegs.CP0.n.Status |= 0x404;
2845                                         break;
2846                         }
2847                         pc0 = psxRegs.CP0.n.EPC + 4;
2848
2849                         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
2850                                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
2851                         return;
2852
2853                 default:
2854 #ifdef PSXCPU_LOG
2855                         PSXCPU_LOG("unknown bios exception!\n");
2856 #endif
2857                         break;
2858         }
2859
2860         pc0 = psxRegs.CP0.n.EPC;
2861         if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
2862
2863         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
2864                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
2865 }
2866
2867 #define bfreeze(ptr, size) { \
2868         if (Mode == 1) memcpy(&psxR[base], ptr, size); \
2869         if (Mode == 0) memcpy(ptr, &psxR[base], size); \
2870         base += size; \
2871 }
2872
2873 #define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
2874 #define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
2875
2876 #define bfreezepsxMptr(ptr, type) { \
2877         if (Mode == 1) { \
2878                 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
2879                 else psxRu32ref(base) = 0; \
2880         } else { \
2881                 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
2882                 else (ptr) = NULL; \
2883         } \
2884         base += sizeof(u32); \
2885 }
2886
2887 void psxBiosFreeze(int Mode) {
2888         u32 base = 0x40000;
2889
2890         bfreezepsxMptr(jmp_int, u32);
2891         bfreezepsxMptr(pad_buf, int);
2892         bfreezepsxMptr(pad_buf1, char);
2893         bfreezepsxMptr(pad_buf2, char);
2894         bfreezepsxMptr(heap_addr, u32);
2895         bfreezel(&pad_buf1len);
2896         bfreezel(&pad_buf2len);
2897         bfreezes(regs);
2898         bfreezes(SysIntRP);
2899         bfreezel(&CardState);
2900         bfreezes(Thread);
2901         bfreezel(&CurThread);
2902         bfreezes(FDesc);
2903         bfreezel(&card_active_chan);
2904 }