libpcsxcore/psxbios.c

   1 /***************************************************************************
   2  *   Copyright (C) 2019 Ryan Schultz, PCSX-df Team, PCSX team, gameblabla, *
   3  *       dmitrysmagin, senquack                                                                                            *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA.           *
  19  ***************************************************************************/
  20
  21 /* Gameblabla 2018-2019 :
  22  * Numerous changes to bios calls as well as improvements in order to conform to nocash's findings
  23  * for the PSX bios calls. Thanks senquack for helping out with some of the changes
  24  * and helping to spot issues and refine my patches.
  25  * */
  26
  27 /*
  28  * Internal simulated HLE BIOS.
  29  */
  30
  31 // TODO: implement all system calls, count the exact CPU cycles of system calls.
  32
  33 #include "psxbios.h"
  34 #include "psxhw.h"
  35 #include "gpu.h"
  36 #include <zlib.h>
  37
  38 #undef SysPrintf
  39 #define SysPrintf if (Config.PsxOut) printf
  40
  41 char *biosA0n[256] = {
  42 // 0x00
  43         "open",         "lseek",        "read",         "write",
  44         "close",        "ioctl",        "exit",         "sys_a0_07",
  45         "getc",         "putc",         "todigit",      "atof",
  46         "strtoul",      "strtol",       "abs",          "labs",
  47 // 0x10
  48         "atoi",         "atol",         "atob",         "setjmp",
  49         "longjmp",      "strcat",       "strncat",      "strcmp",
  50         "strncmp",      "strcpy",       "strncpy",      "strlen",
  51         "index",        "rindex",       "strchr",       "strrchr",
  52 // 0x20
  53         "strpbrk",      "strspn",       "strcspn",      "strtok",
  54         "strstr",       "toupper",      "tolower",      "bcopy",
  55         "bzero",        "bcmp",         "memcpy",       "memset",
  56         "memmove",      "memcmp",       "memchr",       "rand",
  57 // 0x30
  58         "srand",        "qsort",        "strtod",       "malloc",
  59         "free",         "lsearch",      "bsearch",      "calloc",
  60         "realloc",      "InitHeap",     "_exit",        "getchar",
  61         "putchar",      "gets",         "puts",         "printf",
  62 // 0x40
  63         "sys_a0_40",            "LoadTest",                                     "Load",         "Exec",
  64         "FlushCache",           "InstallInterruptHandler",      "GPU_dw",       "mem2vram",
  65         "SendGPUStatus",        "GPU_cw",                                       "GPU_cwb",      "SendPackets",
  66         "sys_a0_4c",            "GetGPUStatus",                         "GPU_sync",     "sys_a0_4f",
  67 // 0x50
  68         "sys_a0_50",            "LoadExec",                             "GetSysSp",             "sys_a0_53",
  69         "_96_init()",           "_bu_init()",                   "_96_remove()", "sys_a0_57",
  70         "sys_a0_58",            "sys_a0_59",                    "sys_a0_5a",    "dev_tty_init",
  71         "dev_tty_open",         "sys_a0_5d",                    "dev_tty_ioctl","dev_cd_open",
  72 // 0x60
  73         "dev_cd_read",          "dev_cd_close",                 "dev_cd_firstfile",     "dev_cd_nextfile",
  74         "dev_cd_chdir",         "dev_card_open",                "dev_card_read",        "dev_card_write",
  75         "dev_card_close",       "dev_card_firstfile",   "dev_card_nextfile","dev_card_erase",
  76         "dev_card_undelete","dev_card_format",          "dev_card_rename",      "dev_card_6f",
  77 // 0x70
  78         "_bu_init",                     "_96_init",             "_96_remove",           "sys_a0_73",
  79         "sys_a0_74",            "sys_a0_75",    "sys_a0_76",            "sys_a0_77",
  80         "_96_CdSeekL",          "sys_a0_79",    "sys_a0_7a",            "sys_a0_7b",
  81         "_96_CdGetStatus",      "sys_a0_7d",    "_96_CdRead",           "sys_a0_7f",
  82 // 0x80
  83         "sys_a0_80",            "sys_a0_81",    "sys_a0_82",            "sys_a0_83",
  84         "sys_a0_84",            "_96_CdStop",   "sys_a0_86",            "sys_a0_87",
  85         "sys_a0_88",            "sys_a0_89",    "sys_a0_8a",            "sys_a0_8b",
  86         "sys_a0_8c",            "sys_a0_8d",    "sys_a0_8e",            "sys_a0_8f",
  87 // 0x90
  88         "sys_a0_90",            "sys_a0_91",    "sys_a0_92",            "sys_a0_93",
  89         "sys_a0_94",            "sys_a0_95",    "AddCDROMDevice",       "AddMemCardDevide",
  90         "DisableKernelIORedirection",           "EnableKernelIORedirection", "sys_a0_9a", "sys_a0_9b",
  91         "SetConf",                      "GetConf",              "sys_a0_9e",            "SetMem",
  92 // 0xa0
  93         "_boot",                        "SystemError",  "EnqueueCdIntr",        "DequeueCdIntr",
  94         "sys_a0_a4",            "ReadSector",   "get_cd_status",        "bufs_cb_0",
  95         "bufs_cb_1",            "bufs_cb_2",    "bufs_cb_3",            "_card_info",
  96         "_card_load",           "_card_auto",   "bufs_cd_4",            "sys_a0_af",
  97 // 0xb0
  98         "sys_a0_b0",            "sys_a0_b1",    "do_a_long_jmp",        "sys_a0_b3",
  99         "?? sub_function",
 100 };
 101
 102 char *biosB0n[256] = {
 103 // 0x00
 104         "SysMalloc",            "sys_b0_01",    "sys_b0_02",    "sys_b0_03",
 105         "sys_b0_04",            "sys_b0_05",    "sys_b0_06",    "DeliverEvent",
 106         "OpenEvent",            "CloseEvent",   "WaitEvent",    "TestEvent",
 107         "EnableEvent",          "DisableEvent", "OpenTh",               "CloseTh",
 108 // 0x10
 109         "ChangeTh",                     "sys_b0_11",    "InitPAD",              "StartPAD",
 110         "StopPAD",                      "PAD_init",             "PAD_dr",               "ReturnFromExecption",
 111         "ResetEntryInt",        "HookEntryInt", "sys_b0_1a",    "sys_b0_1b",
 112         "sys_b0_1c",            "sys_b0_1d",    "sys_b0_1e",    "sys_b0_1f",
 113 // 0x20
 114         "UnDeliverEvent",       "sys_b0_21",    "sys_b0_22",    "sys_b0_23",
 115         "sys_b0_24",            "sys_b0_25",    "sys_b0_26",    "sys_b0_27",
 116         "sys_b0_28",            "sys_b0_29",    "sys_b0_2a",    "sys_b0_2b",
 117         "sys_b0_2c",            "sys_b0_2d",    "sys_b0_2e",    "sys_b0_2f",
 118 // 0x30
 119         "sys_b0_30",            "sys_b0_31",    "open",                 "lseek",
 120         "read",                         "write",                "close",                "ioctl",
 121         "exit",                         "sys_b0_39",    "getc",                 "putc",
 122         "getchar",                      "putchar",              "gets",                 "puts",
 123 // 0x40
 124         "cd",                           "format",               "firstfile",    "nextfile",
 125         "rename",                       "delete",               "undelete",             "AddDevice",
 126         "RemoteDevice",         "PrintInstalledDevices", "InitCARD", "StartCARD",
 127         "StopCARD",                     "sys_b0_4d",    "_card_write",  "_card_read",
 128 // 0x50
 129         "_new_card",            "Krom2RawAdd",  "sys_b0_52",    "sys_b0_53",
 130         "_get_errno",           "_get_error",   "GetC0Table",   "GetB0Table",
 131         "_card_chan",           "sys_b0_59",    "sys_b0_5a",    "ChangeClearPAD",
 132         "_card_status",         "_card_wait",
 133 };
 134
 135 char *biosC0n[256] = {
 136 // 0x00
 137         "InitRCnt",                       "InitException",              "SysEnqIntRP",          "SysDeqIntRP",
 138         "get_free_EvCB_slot", "get_free_TCB_slot",      "ExceptionHandler",     "InstallExeptionHandler",
 139         "SysInitMemory",          "SysInitKMem",                "ChangeClearRCnt",      "SystemError",
 140         "InitDefInt",             "sys_c0_0d",                  "sys_c0_0e",            "sys_c0_0f",
 141 // 0x10
 142         "sys_c0_10",              "sys_c0_11",                  "InstallDevices",       "FlushStfInOutPut",
 143         "sys_c0_14",              "_cdevinput",                 "_cdevscan",            "_circgetc",
 144         "_circputc",              "ioabort",                    "sys_c0_1a",            "KernelRedirect",
 145         "PatchAOTable",
 146 };
 147
 148 //#define r0 (psxRegs.GPR.n.r0)
 149 #define at (psxRegs.GPR.n.at)
 150 #define v0 (psxRegs.GPR.n.v0)
 151 #define v1 (psxRegs.GPR.n.v1)
 152 #define a0 (psxRegs.GPR.n.a0)
 153 #define a1 (psxRegs.GPR.n.a1)
 154 #define a2 (psxRegs.GPR.n.a2)
 155 #define a3 (psxRegs.GPR.n.a3)
 156 #define t0 (psxRegs.GPR.n.t0)
 157 #define t1 (psxRegs.GPR.n.t1)
 158 #define t2 (psxRegs.GPR.n.t2)
 159 #define t3 (psxRegs.GPR.n.t3)
 160 #define t4 (psxRegs.GPR.n.t4)
 161 #define t5 (psxRegs.GPR.n.t5)
 162 #define t6 (psxRegs.GPR.n.t6)
 163 #define t7 (psxRegs.GPR.n.t7)
 164 #define t8 (psxRegs.GPR.n.t8)
 165 #define t9 (psxRegs.GPR.n.t9)
 166 #define s0 (psxRegs.GPR.n.s0)
 167 #define s1 (psxRegs.GPR.n.s1)
 168 #define s2 (psxRegs.GPR.n.s2)
 169 #define s3 (psxRegs.GPR.n.s3)
 170 #define s4 (psxRegs.GPR.n.s4)
 171 #define s5 (psxRegs.GPR.n.s5)
 172 #define s6 (psxRegs.GPR.n.s6)
 173 #define s7 (psxRegs.GPR.n.s7)
 174 #define k0 (psxRegs.GPR.n.k0)
 175 #define k1 (psxRegs.GPR.n.k1)
 176 #define gp (psxRegs.GPR.n.gp)
 177 #define sp (psxRegs.GPR.n.sp)
 178 #define fp (psxRegs.GPR.n.s8)
 179 #define ra (psxRegs.GPR.n.ra)
 180 #define pc0 (psxRegs.pc)
 181
 182 #define Ra0 ((char *)PSXM(a0))
 183 #define Ra1 ((char *)PSXM(a1))
 184 #define Ra2 ((char *)PSXM(a2))
 185 #define Ra3 ((char *)PSXM(a3))
 186 #define Rv0 ((char *)PSXM(v0))
 187 #define Rsp ((char *)PSXM(sp))
 188
 189 typedef struct {
 190         u32 desc;
 191         s32 status;
 192         s32 mode;
 193         u32 fhandler;
 194 } EvCB[32];
 195
 196 #define EvStUNUSED      0x0000
 197 #define EvStWAIT        0x1000
 198 #define EvStACTIVE      0x2000
 199 #define EvStALREADY 0x4000
 200
 201 #define EvMdINTR        0x1000
 202 #define EvMdNOINTR      0x2000
 203
 204 /*
 205 typedef struct {
 206         s32 next;
 207         s32 func1;
 208         s32 func2;
 209         s32 pad;
 210 } SysRPst;
 211 */
 212
 213 typedef struct {
 214         s32 status;
 215         s32 mode;
 216         u32 reg[32];
 217         u32 func;
 218 } TCB;
 219
 220 typedef struct {
 221         u32 _pc0;
 222         u32 gp0;
 223         u32 t_addr;
 224         u32 t_size;
 225         u32 d_addr;
 226         u32 d_size;
 227         u32 b_addr;
 228         u32 b_size;
 229         u32 S_addr;
 230         u32 s_size;
 231         u32 _sp, _fp, _gp, ret, base;
 232 } EXEC;
 233
 234 struct DIRENTRY {
 235         char name[20];
 236         s32 attr;
 237         s32 size;
 238         u32 next;
 239         s32 head;
 240         char system[4];
 241 };
 242
 243 typedef struct {
 244         char name[32];
 245         u32  mode;
 246         u32  offset;
 247         u32  size;
 248         u32  mcfile;
 249 } FileDesc;
 250
 251 static u32 *jmp_int = NULL;
 252 static int *pad_buf = NULL;
 253 static char *pad_buf1 = NULL, *pad_buf2 = NULL;
 254 static int pad_buf1len, pad_buf2len;
 255 static int pad_stopped = 0;
 256
 257 static u32 regs[35];
 258 static EvCB *Event;
 259 static EvCB *HwEV; // 0xf0
 260 static EvCB *EvEV; // 0xf1
 261 static EvCB *RcEV; // 0xf2
 262 static EvCB *UeEV; // 0xf3
 263 static EvCB *SwEV; // 0xf4
 264 static EvCB *ThEV; // 0xff
 265 static u32 heap_size = 0;
 266 static u32 *heap_addr = NULL;
 267 static u32 *heap_end = NULL;
 268 static u32 SysIntRP[8];
 269 static int CardState = -1;
 270 static TCB Thread[8];
 271 static int CurThread = 0;
 272 static FileDesc FDesc[32];
 273 static u32 card_active_chan;
 274
 275 boolean hleSoftCall = FALSE;
 276
 277 static inline void softCall(u32 pc) {
 278         pc0 = pc;
 279         ra = 0x80001000;
 280
 281         hleSoftCall = TRUE;
 282
 283         while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
 284
 285         hleSoftCall = FALSE;
 286 }
 287
 288 static inline void softCall2(u32 pc) {
 289         u32 sra = ra;
 290         pc0 = pc;
 291         ra = 0x80001000;
 292
 293         hleSoftCall = TRUE;
 294
 295         while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
 296         ra = sra;
 297
 298         hleSoftCall = FALSE;
 299 }
 300
 301 static inline void DeliverEvent(u32 ev, u32 spec) {
 302         if (Event[ev][spec].status != EvStACTIVE) return;
 303
 304 //      Event[ev][spec].status = EvStALREADY;
 305         if (Event[ev][spec].mode == EvMdINTR) {
 306                 softCall2(Event[ev][spec].fhandler);
 307         } else Event[ev][spec].status = EvStALREADY;
 308 }
 309
 310 static unsigned interrupt_r26=0x8004E8B0;
 311
 312 static inline void SaveRegs() {
 313         memcpy(regs, psxRegs.GPR.r, 32*4);
 314         regs[32] = psxRegs.GPR.n.lo;
 315         regs[33] = psxRegs.GPR.n.hi;
 316         regs[34] = psxRegs.pc;
 317 }
 318
 319 static inline void LoadRegs() {
 320         memcpy(psxRegs.GPR.r, regs, 32*4);
 321         psxRegs.GPR.n.lo = regs[32];
 322         psxRegs.GPR.n.hi = regs[33];
 323 }
 324
 325 /*                                           *
 326 //                                           *
 327 //                                           *
 328 //               System calls A0             */
 329
 330
 331 #define buread(Ra1, mcd, length) { \
 332         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); \
 333         ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
 334         memcpy(Ra1, ptr, length); \
 335         if (FDesc[1 + mcd].mode & 0x8000) { \
 336         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
 337         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
 338         v0 = 0; } \
 339         else v0 = length; \
 340         FDesc[1 + mcd].offset += v0; \
 341 }
 342
 343 #define buwrite(Ra1, mcd, length) { \
 344         u32 offset =  + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
 345         SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
 346         ptr = Mcd##mcd##Data + offset; \
 347         memcpy(ptr, Ra1, length); \
 348         FDesc[1 + mcd].offset += length; \
 349         if (FDesc[1 + mcd].mode & 0x8000) { \
 350         DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
 351         DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
 352         v0 = 0; } \
 353         else v0 = length; \
 354 }
 355
 356
 357 /* Internally redirects to "FileRead(fd,tempbuf,1)".*/
 358 /* For some strange reason, the returned character is sign-expanded; */
 359 /* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
 360 /* TODO FIX ME : Properly implement this behaviour */
 361 void psxBios_getc(void) // 0x03, 0x35
 362 {
 363         char *ptr;
 364         void *pa1 = Ra1;
 365 #ifdef PSXBIOS_LOG
 366         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
 367 #endif
 368         v0 = -1;
 369
 370         if (pa1) {
 371                 switch (a0) {
 372                         case 2: buread(pa1, 1, 1); break;
 373                         case 3: buread(pa1, 2, 1); break;
 374                 }
 375         }
 376
 377         pc0 = ra;
 378 }
 379
 380 /* Copy of psxBios_write, except size is 1. */
 381 void psxBios_putc(void) // 0x09, 0x3B
 382 {
 383         char *ptr;
 384         void *pa1 = Ra1;
 385 #ifdef PSXBIOS_LOG
 386         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
 387 #endif
 388         v0 = -1;
 389         if (!pa1) {
 390                 pc0 = ra;
 391                 return;
 392         }
 393
 394         if (a0 == 1) { // stdout
 395                 char *ptr = (char *)pa1;
 396
 397                 v0 = a2;
 398                 while (a2 > 0) {
 399                         printf("%c", *ptr++); a2--;
 400                 }
 401                 pc0 = ra; return;
 402         }
 403
 404         switch (a0) {
 405                 case 2: buwrite(pa1, 1, 1); break;
 406                 case 3: buwrite(pa1, 2, 1); break;
 407         }
 408
 409         pc0 = ra;
 410 }
 411
 412 void psxBios_todigit(void) // 0x0a
 413 {
 414         int c = a0;
 415 #ifdef PSXBIOS_LOG
 416         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
 417 #endif
 418         c &= 0xFF;
 419         if (c >= 0x30 && c < 0x3A) {
 420                 c -= 0x30;
 421         }
 422         else if (c > 0x60 && c < 0x7B) {
 423                 c -= 0x20;
 424         }
 425         else if (c > 0x40 && c < 0x5B) {
 426                 c = c - 0x41 + 10;
 427         }
 428         else if (c >= 0x80) {
 429                 c = -1;
 430         }
 431         else
 432         {
 433                 c = 0x0098967F;
 434         }
 435         v0 = c;
 436         pc0 = ra;
 437 }
 438
 439 void psxBios_abs() { // 0x0e
 440         if ((s32)a0 < 0) v0 = -(s32)a0;
 441         else v0 = a0;
 442         pc0 = ra;
 443 }
 444
 445 void psxBios_labs() { // 0x0f
 446         psxBios_abs();
 447 }
 448
 449 void psxBios_atoi() { // 0x10
 450         s32 n = 0, f = 0;
 451         char *p = (char *)Ra0;
 452
 453         for (;;p++) {
 454                 switch (*p) {
 455                         case ' ': case '\t': continue;
 456                         case '-': f++;
 457                         case '+': p++;
 458                 }
 459                 break;
 460         }
 461
 462         while (*p >= '0' && *p <= '9') {
 463                 n = n * 10 + *p++ - '0';
 464         }
 465
 466         v0 = (f ? -n : n);
 467         pc0 = ra;
 468 }
 469
 470 void psxBios_atol() { // 0x11
 471         psxBios_atoi();
 472 }
 473
 474 void psxBios_setjmp() { // 0x13
 475         u32 *jmp_buf = (u32 *)Ra0;
 476         int i;
 477
 478 #ifdef PSXBIOS_LOG
 479         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
 480 #endif
 481
 482         jmp_buf[0] = ra;
 483         jmp_buf[1] = sp;
 484         jmp_buf[2] = fp;
 485         for (i = 0; i < 8; i++) // s0-s7
 486                 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
 487         jmp_buf[11] = gp;
 488
 489         v0 = 0; pc0 = ra;
 490 }
 491
 492 void psxBios_longjmp() { // 0x14
 493         u32 *jmp_buf = (u32 *)Ra0;
 494         int i;
 495
 496 #ifdef PSXBIOS_LOG
 497         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
 498 #endif
 499
 500         ra = jmp_buf[0]; /* ra */
 501         sp = jmp_buf[1]; /* sp */
 502         fp = jmp_buf[2]; /* fp */
 503         for (i = 0; i < 8; i++) // s0-s7
 504                 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
 505         gp = jmp_buf[11]; /* gp */
 506
 507         v0 = a1; pc0 = ra;
 508 }
 509
 510 void psxBios_strcat() { // 0x15
 511         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 512
 513 #ifdef PSXBIOS_LOG
 514         PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
 515 #endif
 516         if (a0 == 0 || a1 == 0)
 517         {
 518                 v0 = 0;
 519                 pc0 = ra;
 520                 return;
 521         }
 522         while (*p1++);
 523         --p1;
 524         while ((*p1++ = *p2++) != '\0');
 525
 526         v0 = a0; pc0 = ra;
 527 }
 528
 529 void psxBios_strncat() { // 0x16
 530         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 531         s32 n = a2;
 532
 533 #ifdef PSXBIOS_LOG
 534         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
 535 #endif
 536         if (a0 == 0 || a1 == 0)
 537         {
 538                 v0 = 0;
 539                 pc0 = ra;
 540                 return;
 541         }
 542         while (*p1++);
 543         --p1;
 544         while ((*p1++ = *p2++) != '\0') {
 545                 if (--n < 0) {
 546                         *--p1 = '\0';
 547                         break;
 548                 }
 549         }
 550
 551         v0 = a0; pc0 = ra;
 552 }
 553
 554 void psxBios_strcmp() { // 0x17
 555         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 556         s32 n=0;
 557         if (a0 == 0 && a1 == 0)
 558         {
 559                 v0 = 0;
 560                 pc0 = ra;
 561                 return;
 562         }
 563         else if (a0 == 0 && a1 != 0)
 564         {
 565                 v0 = -1;
 566                 pc0 = ra;
 567                 return;
 568         }
 569         else if (a0 != 0 && a1 == 0)
 570         {
 571                 v0 = 1;
 572                 pc0 = ra;
 573                 return;
 574         }
 575 #ifdef PSXBIOS_LOG
 576         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
 577 #endif
 578
 579         while (*p1 == *p2++) {
 580                 n++;
 581                 if (*p1++ == '\0') {
 582                         v1=n-1;
 583                         a0+=n;
 584                         a1+=n;
 585                         v0 = 0;
 586                         pc0 = ra;
 587                         return;
 588                 }
 589         }
 590
 591         v0 = (*p1 - *--p2);
 592         v1 = n;
 593         a0+=n;
 594         a1+=n;
 595         pc0 = ra;
 596 }
 597
 598 void psxBios_strncmp() { // 0x18
 599         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 600         s32 n = a2;
 601         if (a0 == 0 && a1 == 0)
 602         {
 603                 v0 = 0;
 604                 pc0 = ra;
 605                 return;
 606         }
 607         else if (a0 == 0 && a1 != 0)
 608         {
 609                 v0 = -1;
 610                 pc0 = ra;
 611                 return;
 612         }
 613         else if (a0 != 0 && a1 == 0)
 614         {
 615                 v0 = 1;
 616                 pc0 = ra;
 617                 return;
 618         }
 619 #ifdef PSXBIOS_LOG
 620         PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
 621 #endif
 622
 623         while (--n >= 0 && *p1 == *p2++) {
 624                 if (*p1++ == '\0') {
 625                         v0 = 0;
 626                         pc0 = ra;
 627                         v1 = a2 - ((a2-n) - 1);
 628                         a0 += (a2-n) - 1;
 629                         a1 += (a2-n) - 1;
 630                         a2 = n;
 631                         return;
 632                 }
 633         }
 634
 635         v0 = (n < 0 ? 0 : *p1 - *--p2);
 636         pc0 = ra;
 637         v1 = a2 - ((a2-n) - 1);
 638         a0 += (a2-n) - 1;
 639         a1 += (a2-n) - 1;
 640         a2 = n;
 641 }
 642
 643 void psxBios_strcpy() { // 0x19
 644         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 645         if (a0 == 0 || a1 == 0)
 646         {
 647                 v0 = 0;
 648                 pc0 = ra;
 649                 return;
 650         }
 651         while ((*p1++ = *p2++) != '\0');
 652
 653         v0 = a0; pc0 = ra;
 654 }
 655
 656 void psxBios_strncpy() { // 0x1a
 657         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 658         s32 n = a2, i;
 659         if (a0 == 0 || a1 == 0)
 660         {
 661                 v0 = 0;
 662                 pc0 = ra;
 663                 return;
 664         }
 665         for (i = 0; i < n; i++) {
 666                 if ((*p1++ = *p2++) == '\0') {
 667                         while (++i < n) {
 668                                 *p1++ = '\0';
 669                         }
 670                         v0 = a0; pc0 = ra;
 671                         return;
 672                 }
 673         }
 674
 675         v0 = a0; pc0 = ra;
 676 }
 677
 678 void psxBios_strlen() { // 0x1b
 679         char *p = (char *)Ra0;
 680         v0 = 0;
 681         if (a0 == 0)
 682         {
 683                 pc0 = ra;
 684                 return;
 685         }
 686         while (*p++) v0++;
 687         pc0 = ra;
 688 }
 689
 690 void psxBios_index() { // 0x1c
 691         char *p = (char *)Ra0;
 692         if (a0 == 0)
 693         {
 694                 v0 = 0;
 695                 pc0 = ra;
 696                 return;
 697         }
 698
 699         do {
 700                 if (*p == a1) {
 701                         v0 = a0 + (p - (char *)Ra0);
 702                         pc0 = ra;
 703                         return;
 704                 }
 705         } while (*p++ != '\0');
 706
 707         v0 = 0; pc0 = ra;
 708 }
 709
 710 void psxBios_rindex() { // 0x1d
 711         char *p = (char *)Ra0;
 712
 713         v0 = 0;
 714         if (a0 == 0)
 715         {
 716                 pc0 = ra;
 717                 return;
 718         }
 719         do {
 720                 if (*p == a1)
 721                         v0 = a0 + (p - (char *)Ra0);
 722         } while (*p++ != '\0');
 723
 724         pc0 = ra;
 725 }
 726
 727 void psxBios_strchr() { // 0x1e
 728         psxBios_index();
 729 }
 730
 731 void psxBios_strrchr() { // 0x1f
 732         psxBios_rindex();
 733 }
 734
 735 void psxBios_strpbrk() { // 0x20
 736         char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
 737
 738         while ((c = *p1++) != '\0') {
 739                 for (scanp = p2; (sc = *scanp++) != '\0';) {
 740                         if (sc == c) {
 741                                 v0 = a0 + (p1 - 1 - (char *)Ra0);
 742                                 pc0 = ra;
 743                                 return;
 744                         }
 745                 }
 746         }
 747
 748         // BUG: return a0 instead of NULL if not found
 749         v0 = a0; pc0 = ra;
 750 }
 751
 752 void psxBios_strspn() { // 0x21
 753         char *p1, *p2;
 754
 755         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 756                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 757                 if (*p2 == '\0') break;
 758         }
 759
 760         v0 = p1 - (char *)Ra0; pc0 = ra;
 761 }
 762
 763 void psxBios_strcspn() { // 0x22
 764         char *p1, *p2;
 765
 766         for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
 767                 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
 768                 if (*p2 != '\0') break;
 769         }
 770
 771         v0 = p1 - (char *)Ra0; pc0 = ra;
 772 }
 773
 774 void psxBios_strtok() { // 0x23
 775         char *pcA0 = (char *)Ra0;
 776         char *pcRet = strtok(pcA0, (char *)Ra1);
 777         if (pcRet)
 778                 v0 = a0 + pcRet - pcA0;
 779         else
 780                 v0 = 0;
 781         pc0 = ra;
 782 }
 783
 784 void psxBios_strstr() { // 0x24
 785         char *p = (char *)Ra0, *p1, *p2;
 786
 787         while (*p != '\0') {
 788                 p1 = p;
 789                 p2 = (char *)Ra1;
 790
 791                 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
 792                         p1++; p2++;
 793                 }
 794
 795                 if (*p2 == '\0') {
 796                         v0 = a0 + (p - (char *)Ra0);
 797                         pc0 = ra;
 798                         return;
 799                 }
 800
 801                 p++;
 802         }
 803
 804         v0 = 0; pc0 = ra;
 805 }
 806
 807 void psxBios_toupper() { // 0x25
 808         v0 = (s8)(a0 & 0xff);
 809         if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
 810         pc0 = ra;
 811 }
 812
 813 void psxBios_tolower() { // 0x26
 814         v0 = (s8)(a0 & 0xff);
 815         if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
 816         pc0 = ra;
 817 }
 818
 819 void psxBios_bcopy() { // 0x27
 820         char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
 821         v0 = a0;
 822         if (a0 == 0 || a2 > 0x7FFFFFFF)
 823         {
 824                 pc0 = ra;
 825                 return;
 826         }
 827         while ((s32)a2-- > 0) *p1++ = *p2++;
 828         a2 = 0;
 829         pc0 = ra;
 830 }
 831
 832 void psxBios_bzero() { // 0x28
 833         char *p = (char *)Ra0;
 834         v0 = a0;
 835         /* Same as memset here (See memset below) */
 836         if (a1 > 0x7FFFFFFF || a1 == 0)
 837         {
 838                 v0 = 0;
 839                 pc0 = ra;
 840                 return;
 841         }
 842         else if (a0 == 0)
 843         {
 844                 pc0 = ra;
 845                 return;
 846         }
 847         while ((s32)a1-- > 0) *p++ = '\0';
 848         a1 = 0;
 849         pc0 = ra;
 850 }
 851
 852 void psxBios_bcmp() { // 0x29
 853         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 854
 855         if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
 856
 857         while ((s32)a2-- > 0) {
 858                 if (*p1++ != *p2++) {
 859                         v0 = *p1 - *p2; // BUG: compare the NEXT byte
 860                         pc0 = ra;
 861                         return;
 862                 }
 863         }
 864
 865         v0 = 0; pc0 = ra;
 866 }
 867
 868 void psxBios_memcpy() { // 0x2a
 869         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 870         v0 = a0;
 871         if (a0 == 0 || a2 > 0x7FFFFFFF)
 872         {
 873                 pc0 = ra;
 874                 return;
 875         }
 876         while ((s32)a2-- > 0) {
 877                 *p1++ = *p2++;
 878         }
 879         a2 = 0;
 880         pc0 = ra;
 881 }
 882
 883 void psxBios_memset() { // 0x2b
 884         char *p = (char *)Ra0;
 885         v0 = a0;
 886         if (a2 > 0x7FFFFFFF || a2 == 0)
 887         {
 888                 v0 = 0;
 889                 pc0 = ra;
 890                 return;
 891         }
 892         if (a0 == 0)
 893         {
 894                 pc0 = ra;
 895                 return;
 896         }
 897         while ((s32)a2-- > 0) *p++ = (char)a1;
 898         a2 = 0;
 899         v0 = a0; pc0 = ra;
 900 }
 901
 902 void psxBios_memmove() { // 0x2c
 903         char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
 904         v0 = a0;
 905         if (a0 == 0 || a2 > 0x7FFFFFFF)
 906         {
 907                 pc0 = ra;
 908                 return;
 909         }
 910         if (p2 <= p1 && p2 + a2 > p1) {
 911                 a2++; // BUG: copy one more byte here
 912                 p1 += a2;
 913                 p2 += a2;
 914                 while ((s32)a2-- > 0) *--p1 = *--p2;
 915         } else {
 916                 while ((s32)a2-- > 0) *p1++ = *p2++;
 917         }
 918         pc0 = ra;
 919 }
 920
 921 void psxBios_memcmp() { // 0x2d
 922         psxBios_bcmp();
 923 }
 924
 925 void psxBios_memchr() { // 0x2e
 926         char *p = (char *)Ra0;
 927
 928         while ((s32)a2-- > 0) {
 929                 if (*p++ != (s8)a1) continue;
 930                 v0 = a0 + (p - (char *)Ra0 - 1);
 931                 pc0 = ra;
 932                 return;
 933         }
 934
 935         v0 = 0; pc0 = ra;
 936 }
 937
 938 void psxBios_rand() { // 0x2f
 939         u32 s = psxMu32(0x9010) * 1103515245 + 12345;
 940         v0 = (s >> 16) & 0x7fff;
 941         psxMu32ref(0x9010) = SWAPu32(s);
 942         pc0 = ra;
 943 }
 944
 945 void psxBios_srand() { // 0x30
 946         psxMu32ref(0x9010) = SWAPu32(a0);
 947         pc0 = ra;
 948 }
 949
 950 static u32 qscmpfunc, qswidth;
 951
 952 static inline int qscmp(char *a, char *b) {
 953         u32 sa0 = a0;
 954
 955         a0 = sa0 + (a - (char *)PSXM(sa0));
 956         a1 = sa0 + (b - (char *)PSXM(sa0));
 957
 958         softCall2(qscmpfunc);
 959
 960         a0 = sa0;
 961         return (s32)v0;
 962 }
 963
 964 static inline void qexchange(char *i, char *j) {
 965         char t;
 966         int n = qswidth;
 967
 968         do {
 969                 t = *i;
 970                 *i++ = *j;
 971                 *j++ = t;
 972         } while (--n);
 973 }
 974
 975 static inline void q3exchange(char *i, char *j, char *k) {
 976         char t;
 977         int n = qswidth;
 978
 979         do {
 980                 t = *i;
 981                 *i++ = *k;
 982                 *k++ = *j;
 983                 *j++ = t;
 984         } while (--n);
 985 }
 986
 987 static void qsort_main(char *a, char *l) {
 988         char *i, *j, *lp, *hp;
 989         int c;
 990         unsigned int n;
 991
 992 start:
 993         if ((n = l - a) <= qswidth)
 994                 return;
 995         n = qswidth * (n / (2 * qswidth));
 996         hp = lp = a + n;
 997         i = a;
 998         j = l - qswidth;
 999         while (TRUE) {
1000                 if (i < lp) {
1001                         if ((c = qscmp(i, lp)) == 0) {
1002                                 qexchange(i, lp -= qswidth);
1003                                 continue;
1004                         }
1005                         if (c < 0) {
1006                                 i += qswidth;
1007                                 continue;
1008                         }
1009                 }
1010
1011 loop:
1012                 if (j > hp) {
1013                         if ((c = qscmp(hp, j)) == 0) {
1014                                 qexchange(hp += qswidth, j);
1015                                 goto loop;
1016                         }
1017                         if (c > 0) {
1018                                 if (i == lp) {
1019                                         q3exchange(i, hp += qswidth, j);
1020                                         i = lp += qswidth;
1021                                         goto loop;
1022                                 }
1023                                 qexchange(i, j);
1024                                 j -= qswidth;
1025                                 i += qswidth;
1026                                 continue;
1027                         }
1028                         j -= qswidth;
1029                         goto loop;
1030                 }
1031
1032                 if (i == lp) {
1033                         if (lp - a >= l - hp) {
1034                                 qsort_main(hp + qswidth, l);
1035                                 l = lp;
1036                         } else {
1037                                 qsort_main(a, lp);
1038                                 a = hp + qswidth;
1039                         }
1040                         goto start;
1041                 }
1042
1043                 q3exchange(j, lp -= qswidth, i);
1044                 j = hp -= qswidth;
1045         }
1046 }
1047
1048 void psxBios_qsort() { // 0x31
1049         qswidth = a2;
1050         qscmpfunc = a3;
1051         qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
1052
1053         pc0 = ra;
1054 }
1055
1056 void psxBios_malloc() { // 0x33
1057         unsigned int *chunk, *newchunk = NULL;
1058         unsigned int dsize = 0, csize, cstat;
1059         int colflag;
1060 #ifdef PSXBIOS_LOG
1061         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
1062 #endif
1063         if (!a0 || (!heap_size || !heap_addr)) {
1064                 v0 = 0;
1065                 pc0 = ra;
1066                 return;
1067         }
1068
1069         // scan through heap and combine free chunks of space
1070         chunk = heap_addr;
1071         colflag = 0;
1072         while(chunk < heap_end) {
1073                 // get size and status of actual chunk
1074                 csize = ((u32)*chunk) & 0xfffffffc;
1075                 cstat = ((u32)*chunk) & 1;
1076
1077                 // most probably broken heap descriptor
1078                 // this fixes Burning Road
1079                 if (*chunk == 0) {
1080                         newchunk = chunk;
1081                         dsize = ((uptr)heap_end - (uptr)chunk) - 4;
1082                         colflag = 1;
1083                         break;
1084                 }
1085
1086                 // it's a free chunk
1087                 if(cstat == 1) {
1088                         if(colflag == 0) {
1089                                 newchunk = chunk;
1090                                 dsize = csize;
1091                                 colflag = 1;                    // let's begin a new collection of free memory
1092                         }
1093                         else dsize += (csize+4);        // add the new size including header
1094                 }
1095                 // not a free chunk: did we start a collection ?
1096                 else {
1097                         if(colflag == 1) {                      // collection is over
1098                                 colflag = 0;
1099                                 *newchunk = SWAP32(dsize | 1);
1100                         }
1101                 }
1102
1103                 // next chunk
1104                 chunk = (u32*)((uptr)chunk + csize + 4);
1105         }
1106         // if neccessary free memory on end of heap
1107         if (colflag == 1)
1108                 *newchunk = SWAP32(dsize | 1);
1109
1110         chunk = heap_addr;
1111         csize = ((u32)*chunk) & 0xfffffffc;
1112         cstat = ((u32)*chunk) & 1;
1113         dsize = (a0 + 3) & 0xfffffffc;
1114
1115         // exit on uninitialized heap
1116         if (chunk == NULL) {
1117                 printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
1118                 v0 = 0;
1119                 pc0 = ra;
1120                 return;
1121         }
1122
1123         // search an unused chunk that is big enough until the end of the heap
1124         while ((dsize > csize || cstat==0) && chunk < heap_end ) {
1125                 chunk = (u32*)((uptr)chunk + csize + 4);
1126
1127                         // catch out of memory
1128                         if(chunk >= heap_end) {
1129                                 printf("malloc %x,%x: Out of memory error!\n",
1130                                         v0, a0);
1131                                 v0 = 0; pc0 = ra;
1132                                 return;
1133                         }
1134
1135                 csize = ((u32)*chunk) & 0xfffffffc;
1136                 cstat = ((u32)*chunk) & 1;
1137         }
1138
1139         // allocate memory
1140         if(dsize == csize) {
1141                 // chunk has same size
1142                 *chunk &= 0xfffffffc;
1143         } else if (dsize > csize) {
1144                 v0 = 0; pc0 = ra;
1145                 return;
1146         } else {
1147                 // split free chunk
1148                 *chunk = SWAP32(dsize);
1149                 newchunk = (u32*)((uptr)chunk + dsize + 4);
1150                 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
1151         }
1152
1153         // return pointer to allocated memory
1154         v0 = ((uptr)chunk - (uptr)psxM) + 4;
1155         v0|= 0x80000000;
1156         //printf ("malloc %x,%x\n", v0, a0);
1157         pc0 = ra;
1158 }
1159
1160 void psxBios_free() { // 0x34
1161
1162 #ifdef PSXBIOS_LOG
1163         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1164 #endif
1165
1166         SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1167
1168         if (a0)
1169                 *(u32*)(Ra0-4) |= 1;    // set chunk to free
1170         pc0 = ra;
1171 }
1172
1173 void psxBios_calloc() { // 0x37
1174         void *pv0;
1175 #ifdef PSXBIOS_LOG
1176         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1177 #endif
1178
1179         a0 = a0 * a1;
1180         psxBios_malloc();
1181         pv0 = Rv0;
1182         if (pv0)
1183                 memset(pv0, 0, a0);
1184 }
1185
1186 void psxBios_realloc() { // 0x38
1187         u32 block = a0;
1188         u32 size = a1;
1189 #ifdef PSXBIOS_LOG
1190         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1191 #endif
1192
1193         a0 = block;
1194         /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1195         if (block == 0)
1196         {
1197                 psxBios_malloc();
1198         }
1199         /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1200         else if (size == 0)
1201         {
1202                 psxBios_free();
1203         }
1204         /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1205         /* Note that it is not quite implemented this way here. */
1206         else
1207         {
1208                 psxBios_free();
1209                 a0 = size;
1210                 psxBios_malloc();
1211         }
1212 }
1213
1214
1215 /* InitHeap(void *block , int n) */
1216 void psxBios_InitHeap() { // 0x39
1217         unsigned int size;
1218
1219 #ifdef PSXBIOS_LOG
1220         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1221 #endif
1222
1223         if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1224         else size = a1;
1225
1226         size &= 0xfffffffc;
1227
1228         heap_addr = (u32 *)Ra0;
1229         heap_size = size;
1230         heap_end = (u32 *)((u8 *)heap_addr + heap_size);
1231         /* HACKFIX: Commenting out this line fixes GTA2 crash */
1232         //*heap_addr = SWAP32(size | 1);
1233
1234         SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
1235
1236         pc0 = ra;
1237 }
1238
1239 void psxBios_getchar() { //0x3b
1240         v0 = getchar(); pc0 = ra;
1241 }
1242
1243 void psxBios_printf() { // 0x3f
1244         char tmp[1024];
1245         char tmp2[1024];
1246         u32 save[4];
1247         char *ptmp = tmp;
1248         int n=1, i=0, j;
1249         void *psp;
1250
1251         psp = PSXM(sp);
1252         if (psp) {
1253                 memcpy(save, psp, 4 * 4);
1254                 psxMu32ref(sp) = SWAP32((u32)a0);
1255                 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1256                 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1257                 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1258         }
1259
1260         while (Ra0[i]) {
1261                 switch (Ra0[i]) {
1262                         case '%':
1263                                 j = 0;
1264                                 tmp2[j++] = '%';
1265 _start:
1266                                 switch (Ra0[++i]) {
1267                                         case '.':
1268                                         case 'l':
1269                                                 tmp2[j++] = Ra0[i]; goto _start;
1270                                         default:
1271                                                 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1272                                                         tmp2[j++] = Ra0[i];
1273                                                         goto _start;
1274                                                 }
1275                                                 break;
1276                                 }
1277                                 tmp2[j++] = Ra0[i];
1278                                 tmp2[j] = 0;
1279
1280                                 switch (Ra0[i]) {
1281                                         case 'f': case 'F':
1282                                                 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1283                                         case 'a': case 'A':
1284                                         case 'e': case 'E':
1285                                         case 'g': case 'G':
1286                                                 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1287                                         case 'p':
1288                                         case 'i': case 'u':
1289                                         case 'd': case 'D':
1290                                         case 'o': case 'O':
1291                                         case 'x': case 'X':
1292                                                 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1293                                         case 'c':
1294                                                 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1295                                         case 's':
1296                                                 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1297                                         case '%':
1298                                                 *ptmp++ = Ra0[i]; break;
1299                                 }
1300                                 i++;
1301                                 break;
1302                         default:
1303                                 *ptmp++ = Ra0[i++];
1304                 }
1305         }
1306         *ptmp = 0;
1307
1308         if (psp)
1309                 memcpy(psp, save, 4 * 4);
1310
1311         SysPrintf("%s", tmp);
1312
1313         pc0 = ra;
1314 }
1315
1316 void psxBios_format() { // 0x41
1317         if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1318         {
1319                 CreateMcd(Config.Mcd1);
1320                 LoadMcd(1, Config.Mcd1);
1321                 v0 = 1;
1322         }
1323         else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1324         {
1325                 CreateMcd(Config.Mcd2);
1326                 LoadMcd(2, Config.Mcd2);
1327                 v0 = 1;
1328         }
1329         else
1330         {
1331                 v0 = 0;
1332         }
1333         pc0 = ra;
1334 }
1335
1336 /*
1337  *      long Load(char *name, struct EXEC *header);
1338  */
1339
1340 void psxBios_Load() { // 0x42
1341         EXE_HEADER eheader;
1342         void *pa1;
1343
1344 #ifdef PSXBIOS_LOG
1345         PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1346 #endif
1347
1348         pa1 = Ra1;
1349         if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1350                 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
1351                 v0 = 1;
1352         } else v0 = 0;
1353
1354         pc0 = ra;
1355 }
1356
1357 /*
1358  *      int Exec(struct EXEC *header , int argc , char **argv);
1359  */
1360
1361 void psxBios_Exec() { // 43
1362         EXEC *header = (EXEC*)Ra0;
1363         u32 tmp;
1364
1365 #ifdef PSXBIOS_LOG
1366         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1367 #endif
1368
1369         header->_sp = sp;
1370         header->_fp = fp;
1371         header->_sp = sp;
1372         header->_gp = gp;
1373         header->ret = ra;
1374         header->base = s0;
1375
1376         if (header->S_addr != 0) {
1377                 tmp = header->S_addr + header->s_size;
1378                 sp = tmp;
1379                 fp = sp;
1380         }
1381
1382         gp = header->gp0;
1383
1384         s0 = a0;
1385
1386         a0 = a1;
1387         a1 = a2;
1388
1389         ra = 0x8000;
1390         pc0 = header->_pc0;
1391 }
1392
1393 void psxBios_FlushCache() { // 44
1394 #ifdef PSXBIOS_LOG
1395         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1396 #endif
1397
1398         pc0 = ra;
1399 }
1400
1401 void psxBios_GPU_dw() { // 0x46
1402         int size;
1403         s32 *ptr;
1404
1405 #ifdef PSXBIOS_LOG
1406         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1407 #endif
1408
1409         GPU_writeData(0xa0000000);
1410         GPU_writeData((a1<<16)|(a0&0xffff));
1411         GPU_writeData((a3<<16)|(a2&0xffff));
1412         size = (a2*a3+1)/2;
1413         ptr = (s32*)PSXM(Rsp[4]);  //that is correct?
1414         do {
1415                 GPU_writeData(SWAP32(*ptr));
1416                 ptr++;
1417         } while(--size);
1418
1419         pc0 = ra;
1420 }
1421
1422 void psxBios_mem2vram() { // 0x47
1423         int size;
1424
1425         GPU_writeData(0xa0000000);
1426         GPU_writeData((a1<<16)|(a0&0xffff));
1427         GPU_writeData((a3<<16)|(a2&0xffff));
1428         size = (a2*a3+1)/2;
1429         GPU_writeStatus(0x04000002);
1430         psxHwWrite32(0x1f8010f4,0);
1431         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1432         psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1433         psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1434         psxHwWrite32(0x1f8010a8,0x01000201);
1435
1436         pc0 = ra;
1437 }
1438
1439 void psxBios_SendGPU() { // 0x48
1440         GPU_writeStatus(a0);
1441         gpuSyncPluginSR();
1442         pc0 = ra;
1443 }
1444
1445 void psxBios_GPU_cw() { // 0x49
1446         GPU_writeData(a0);
1447         pc0 = ra;
1448 }
1449
1450 void psxBios_GPU_cwb() { // 0x4a
1451         s32 *ptr = (s32*)Ra0;
1452         int size = a1;
1453         while(size--) {
1454                 GPU_writeData(SWAP32(*ptr));
1455                 ptr++;
1456         }
1457
1458         pc0 = ra;
1459 }
1460
1461 void psxBios_GPU_SendPackets() { //4b:
1462         GPU_writeStatus(0x04000002);
1463         psxHwWrite32(0x1f8010f4,0);
1464         psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1465         psxHwWrite32(0x1f8010a0,a0);
1466         psxHwWrite32(0x1f8010a4,0);
1467         psxHwWrite32(0x1f8010a8,0x010000401);
1468         pc0 = ra;
1469 }
1470
1471 void psxBios_sys_a0_4c() { // 0x4c GPU relate
1472         psxHwWrite32(0x1f8010a8,0x00000401);
1473         GPU_writeData(0x0400000);
1474         GPU_writeData(0x0200000);
1475         GPU_writeData(0x0100000);
1476         v0 = 0x1f801814;
1477         pc0 = ra;
1478 }
1479
1480 void psxBios_GPU_GetGPUStatus() { // 0x4d
1481         v0 = GPU_readStatus();
1482         pc0 = ra;
1483 }
1484
1485 #undef s_addr
1486
1487 void psxBios_LoadExec() { // 51
1488         EXEC *header = (EXEC*)PSXM(0xf000);
1489         u32 s_addr, s_size;
1490
1491 #ifdef PSXBIOS_LOG
1492         PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1493 #endif
1494         s_addr = a1; s_size = a2;
1495
1496         a1 = 0xf000;
1497         psxBios_Load();
1498
1499         header->S_addr = s_addr;
1500         header->s_size = s_size;
1501
1502         a0 = 0xf000; a1 = 0; a2 = 0;
1503         psxBios_Exec();
1504 }
1505
1506 void psxBios__bu_init() { // 70
1507 #ifdef PSXBIOS_LOG
1508         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1509 #endif
1510
1511         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1512         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1513
1514         pc0 = ra;
1515 }
1516
1517 void psxBios__96_init() { // 71
1518 #ifdef PSXBIOS_LOG
1519         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1520 #endif
1521
1522         pc0 = ra;
1523 }
1524
1525 void psxBios__96_remove() { // 72
1526 #ifdef PSXBIOS_LOG
1527         PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1528 #endif
1529
1530         pc0 = ra;
1531 }
1532
1533 void psxBios_SetMem() { // 9f
1534         u32 new = psxHu32(0x1060);
1535
1536 #ifdef PSXBIOS_LOG
1537         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1538 #endif
1539
1540         switch(a0) {
1541                 case 2:
1542                         psxHu32ref(0x1060) = SWAP32(new);
1543                         psxMu32ref(0x060) = a0;
1544                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1545                         break;
1546
1547                 case 8:
1548                         psxHu32ref(0x1060) = SWAP32(new | 0x300);
1549                         psxMu32ref(0x060) = a0;
1550                         SysPrintf("Change effective memory : %d MBytes\n",a0);
1551
1552                 default:
1553                         SysPrintf("Effective memory must be 2/8 MBytes\n");
1554                 break;
1555         }
1556
1557         pc0 = ra;
1558 }
1559
1560 void psxBios__card_info() { // ab
1561 #ifdef PSXBIOS_LOG
1562         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1563 #endif
1564         u32 ret;
1565         card_active_chan = a0;
1566
1567         switch (card_active_chan)
1568         {
1569         case 0x00: case 0x01: case 0x02: case 0x03:
1570                 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1571                 break;
1572         case 0x10: case 0x11: case 0x12: case 0x13:
1573                 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1574                 break;
1575         default:
1576 #ifdef PSXBIOS_LOG
1577                 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1578 #endif
1579                 ret = 0x11;
1580                 break;
1581         }
1582
1583 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1584 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1585         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1586         DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
1587
1588         v0 = 1; pc0 = ra;
1589 }
1590
1591 void psxBios__card_load() { // ac
1592 #ifdef PSXBIOS_LOG
1593         PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1594 #endif
1595
1596         card_active_chan = a0;
1597
1598 //      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1599         DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1600
1601         v0 = 1; pc0 = ra;
1602 }
1603
1604 /* System calls B0 */
1605
1606 void psxBios_SetRCnt() { // 02
1607 #ifdef PSXBIOS_LOG
1608         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1609 #endif
1610
1611         a0&= 0x3;
1612         if (a0 != 3) {
1613                 u32 mode=0;
1614
1615                 psxRcntWtarget(a0, a1);
1616                 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1617                 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1618                 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1619                 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1620                 else         { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1621
1622                 psxRcntWmode(a0, mode);
1623         }
1624         pc0 = ra;
1625 }
1626
1627 void psxBios_GetRCnt() { // 03
1628 #ifdef PSXBIOS_LOG
1629         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1630 #endif
1631
1632         a0&= 0x3;
1633         if (a0 != 3) v0 = psxRcntRcount(a0);
1634         else v0 = 0;
1635         pc0 = ra;
1636 }
1637
1638 void psxBios_StartRCnt() { // 04
1639 #ifdef PSXBIOS_LOG
1640         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1641 #endif
1642
1643         a0&= 0x3;
1644         if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1645         else psxHu32ref(0x1074)|= SWAPu32(0x1);
1646         v0 = 1; pc0 = ra;
1647 }
1648
1649 void psxBios_StopRCnt() { // 05
1650 #ifdef PSXBIOS_LOG
1651         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1652 #endif
1653
1654         a0&= 0x3;
1655         if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1656         else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1657         pc0 = ra;
1658 }
1659
1660 void psxBios_ResetRCnt() { // 06
1661 #ifdef PSXBIOS_LOG
1662         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1663 #endif
1664
1665         a0&= 0x3;
1666         if (a0 != 3) {
1667                 psxRcntWmode(a0, 0);
1668                 psxRcntWtarget(a0, 0);
1669                 psxRcntWcount(a0, 0);
1670         }
1671         pc0 = ra;
1672 }
1673
1674
1675 /* gets ev for use with Event */
1676 #define GetEv() \
1677         ev = (a0 >> 24) & 0xf; \
1678         if (ev == 0xf) ev = 0x5; \
1679         ev*= 32; \
1680         ev+= a0&0x1f;
1681
1682 /* gets spec for use with Event */
1683 #define GetSpec() \
1684         spec = 0; \
1685         switch (a1) { \
1686                 case 0x0301: spec = 16; break; \
1687                 case 0x0302: spec = 17; break; \
1688                 default: \
1689                         for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1690                         break; \
1691         }
1692
1693 void psxBios_DeliverEvent() { // 07
1694         int ev, spec;
1695         int i;
1696
1697         GetEv();
1698         GetSpec();
1699
1700 #ifdef PSXBIOS_LOG
1701         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1702 #endif
1703
1704         DeliverEvent(ev, spec);
1705
1706         pc0 = ra;
1707 }
1708
1709 void psxBios_OpenEvent() { // 08
1710         int ev, spec;
1711         int i;
1712
1713         GetEv();
1714         GetSpec();
1715
1716 #ifdef PSXBIOS_LOG
1717         PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1718 #endif
1719
1720         Event[ev][spec].status = EvStWAIT;
1721         Event[ev][spec].mode = a2;
1722         Event[ev][spec].fhandler = a3;
1723
1724         v0 = ev | (spec << 8);
1725         pc0 = ra;
1726 }
1727
1728 void psxBios_CloseEvent() { // 09
1729         int ev, spec;
1730
1731         ev   = a0 & 0xff;
1732         spec = (a0 >> 8) & 0xff;
1733
1734 #ifdef PSXBIOS_LOG
1735         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1736 #endif
1737
1738         Event[ev][spec].status = EvStUNUSED;
1739
1740         v0 = 1; pc0 = ra;
1741 }
1742
1743 void psxBios_WaitEvent() { // 0a
1744         int ev, spec;
1745
1746         ev   = a0 & 0xff;
1747         spec = (a0 >> 8) & 0xff;
1748 #ifdef PSXBIOS_LOG
1749         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1750 #endif
1751         if (Event[ev][spec].status == EvStUNUSED)
1752         {
1753                 v0 = 0;
1754                 pc0 = ra;
1755                 return;
1756         }
1757
1758         if (Event[ev][spec].status == EvStALREADY)
1759         {
1760                 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1761                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1762                 v0 = 1;
1763                 pc0 = ra;
1764                 return;
1765         }
1766
1767         v0 = 0;
1768         pc0 = ra;
1769 }
1770
1771 void psxBios_TestEvent() { // 0b
1772         int ev, spec;
1773
1774         ev   = a0 & 0xff;
1775         spec = (a0 >> 8) & 0xff;
1776
1777         if (Event[ev][spec].status == EvStALREADY)
1778         {
1779                 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1780                 v0 = 1;
1781         }
1782         else
1783         {
1784                 v0 = 0;
1785         }
1786
1787 #ifdef PSXBIOS_LOG
1788         PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1789 #endif
1790
1791         pc0 = ra;
1792 }
1793
1794 void psxBios_EnableEvent() { // 0c
1795         int ev, spec;
1796
1797         ev   = a0 & 0xff;
1798         spec = (a0 >> 8) & 0xff;
1799
1800 #ifdef PSXBIOS_LOG
1801         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1802 #endif
1803
1804         Event[ev][spec].status = EvStACTIVE;
1805
1806         v0 = 1; pc0 = ra;
1807 }
1808
1809 void psxBios_DisableEvent() { // 0d
1810         int ev, spec;
1811
1812         ev   = a0 & 0xff;
1813         spec = (a0 >> 8) & 0xff;
1814
1815 #ifdef PSXBIOS_LOG
1816         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1817 #endif
1818
1819         Event[ev][spec].status = EvStWAIT;
1820
1821         v0 = 1; pc0 = ra;
1822 }
1823
1824 /*
1825  *      long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1826  */
1827
1828 void psxBios_OpenTh() { // 0e
1829         int th;
1830
1831         for (th=1; th<8; th++)
1832         {
1833                 if (Thread[th].status == 0) break;
1834
1835         }
1836         if (th == 8) {
1837                 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1838                 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1839 #ifdef PSXBIOS_LOG
1840                 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1841 #endif
1842                 v0 = 0xffffffff;
1843                 pc0 = ra;
1844                 return;
1845         }
1846 #ifdef PSXBIOS_LOG
1847         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1848 #endif
1849
1850         Thread[th].status = 1;
1851         Thread[th].func    = a0;
1852         Thread[th].reg[29] = a1;
1853         Thread[th].reg[28] = a2;
1854
1855         v0 = th; pc0 = ra;
1856 }
1857
1858 /*
1859  *      int CloseTh(long thread);
1860  */
1861
1862 void psxBios_CloseTh() { // 0f
1863         int th = a0 & 0xff;
1864
1865 #ifdef PSXBIOS_LOG
1866         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1867 #endif
1868
1869         if (Thread[th].status == 0) {
1870                 v0 = 0;
1871         } else {
1872                 Thread[th].status = 0;
1873                 v0 = 1;
1874         }
1875
1876         pc0 = ra;
1877 }
1878
1879 /*
1880  *      int ChangeTh(long thread);
1881  */
1882
1883 void psxBios_ChangeTh() { // 10
1884         int th = a0 & 0xff;
1885
1886 #ifdef PSXBIOS_LOG
1887 //      PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1888 #endif
1889
1890         if (Thread[th].status == 0 || CurThread == th) {
1891                 v0 = 0;
1892
1893                 pc0 = ra;
1894         } else {
1895                 v0 = 1;
1896
1897                 if (Thread[CurThread].status == 2) {
1898                         Thread[CurThread].status = 1;
1899                         Thread[CurThread].func = ra;
1900                         memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1901                 }
1902
1903                 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1904                 pc0 = Thread[th].func;
1905                 Thread[th].status = 2;
1906                 CurThread = th;
1907         }
1908 }
1909
1910 void psxBios_InitPAD() { // 0x12
1911 #ifdef PSXBIOS_LOG
1912         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1913 #endif
1914
1915         pad_buf1 = (char*)Ra0;
1916         pad_buf1len = a1;
1917         pad_buf2 = (char*)Ra2;
1918         pad_buf2len = a3;
1919
1920         v0 = 1; pc0 = ra;
1921 }
1922
1923 void psxBios_StartPAD() { // 13
1924 #ifdef PSXBIOS_LOG
1925         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1926 #endif
1927         pad_stopped = 0;
1928         psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1929         psxRegs.CP0.n.Status |= 0x401;
1930         pc0 = ra;
1931 }
1932
1933 void psxBios_StopPAD() { // 14
1934 #ifdef PSXBIOS_LOG
1935         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1936 #endif
1937         pad_stopped = 1;
1938         pad_buf1 = NULL;
1939         pad_buf2 = NULL;
1940         pc0 = ra;
1941 }
1942
1943 void psxBios_PAD_init() { // 15
1944 #ifdef PSXBIOS_LOG
1945         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1946 #endif
1947         if (!(a0 == 0x20000000 || a0 == 0x20000001))
1948         {
1949                 v0 = 0;
1950                 pc0 = ra;
1951                 return;
1952         }
1953         psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1954         pad_buf = (int *)Ra1;
1955         *pad_buf = -1;
1956         psxRegs.CP0.n.Status |= 0x401;
1957         v0 = 2;
1958         pc0 = ra;
1959 }
1960
1961 void psxBios_PAD_dr() { // 16
1962 #ifdef PSXBIOS_LOG
1963         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1964 #endif
1965
1966         v0 = -1; pc0 = ra;
1967 }
1968
1969 void psxBios_ReturnFromException() { // 17
1970         LoadRegs();
1971
1972         pc0 = psxRegs.CP0.n.EPC;
1973         k0 = interrupt_r26;
1974         if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1975
1976         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1977                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1978 }
1979
1980 void psxBios_ResetEntryInt() { // 18
1981 #ifdef PSXBIOS_LOG
1982         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1983 #endif
1984
1985         jmp_int = NULL;
1986         pc0 = ra;
1987 }
1988
1989 void psxBios_HookEntryInt() { // 19
1990 #ifdef PSXBIOS_LOG
1991         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1992 #endif
1993
1994         jmp_int = (u32*)Ra0;
1995         pc0 = ra;
1996 }
1997
1998 void psxBios_UnDeliverEvent() { // 0x20
1999         int ev, spec;
2000         int i;
2001
2002         GetEv();
2003         GetSpec();
2004
2005 #ifdef PSXBIOS_LOG
2006         PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
2007 #endif
2008
2009         if (Event[ev][spec].status == EvStALREADY &&
2010                 Event[ev][spec].mode == EvMdNOINTR)
2011                 Event[ev][spec].status = EvStACTIVE;
2012
2013         pc0 = ra;
2014 }
2015
2016 char ffile[64], *pfile;
2017 int nfile;
2018 static void buopen(int mcd, u8 *ptr, u8 *cfg)
2019 {
2020         int i;
2021         u8 *fptr = ptr;
2022
2023         strcpy(FDesc[1 + mcd].name, Ra0+5);
2024         FDesc[1 + mcd].offset = 0;
2025         FDesc[1 + mcd].mode   = a1;
2026
2027         for (i=1; i<16; i++) {
2028                 fptr += 128;
2029                 if ((*fptr & 0xF0) != 0x50) continue;
2030                 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
2031                 FDesc[1 + mcd].mcfile = i;
2032                 SysPrintf("open %s\n", fptr+0xa);
2033                 v0 = 1 + mcd;
2034                 break;
2035         }
2036         if (a1 & 0x200 && v0 == -1) { /* FCREAT */
2037                 fptr = ptr;
2038                 for (i=1; i<16; i++) {
2039                         int j, xor, nblk = a1 >> 16;
2040                         u8 *pptr, *fptr2;
2041
2042                         fptr += 128;
2043                         if ((*fptr & 0xF0) != 0xa0) continue;
2044
2045                         FDesc[1 + mcd].mcfile = i;
2046                         fptr[0] = 0x51;
2047                         fptr[4] = 0x00;
2048                         fptr[5] = 0x20 * nblk;
2049                         fptr[6] = 0x00;
2050                         fptr[7] = 0x00;
2051                         strcpy(fptr+0xa, FDesc[1 + mcd].name);
2052                         pptr = fptr2 = fptr;
2053                         for(j=2; j<=nblk; j++) {
2054                                 int k;
2055                                 for(i++; i<16; i++) {
2056                                         fptr2 += 128;
2057
2058                                         memset(fptr2, 0, 128);
2059                                         fptr2[0] = j < nblk ? 0x52 : 0x53;
2060                                         pptr[8] = i - 1;
2061                                         pptr[9] = 0;
2062                                         for (k=0, xor=0; k<127; k++) xor^= pptr[k];
2063                                         pptr[127] = xor;
2064                                         pptr = fptr2;
2065                                         break;
2066                                 }
2067                                 /* shouldn't this return ENOSPC if i == 16? */
2068                         }
2069                         pptr[8] = pptr[9] = 0xff;
2070                         for (j=0, xor=0; j<127; j++) xor^= pptr[j];
2071                         pptr[127] = xor;
2072                         SysPrintf("openC %s %d\n", ptr, nblk);
2073                         v0 = 1 + mcd;
2074                         /* just go ahead and resave them all */
2075                         SaveMcd(cfg, ptr, 128, 128 * 15);
2076                         break;
2077                 }
2078                 /* shouldn't this return ENOSPC if i == 16? */
2079         }
2080 }
2081
2082 /*
2083  *      int open(char *name , int mode);
2084  */
2085
2086 void psxBios_open() { // 0x32
2087         int i;
2088         char *ptr;
2089         void *pa0 = Ra0;
2090
2091 #ifdef PSXBIOS_LOG
2092         PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
2093 #endif
2094
2095         v0 = -1;
2096
2097         if (pa0) {
2098                 if (!strncmp(pa0, "bu00", 4)) {
2099                         buopen(1, Mcd1Data, Config.Mcd1);
2100                 }
2101
2102                 if (!strncmp(pa0, "bu10", 4)) {
2103                         buopen(2, Mcd2Data, Config.Mcd2);
2104                 }
2105         }
2106
2107         pc0 = ra;
2108 }
2109
2110 /*
2111  *      int lseek(int fd , int offset , int whence);
2112  */
2113
2114 void psxBios_lseek() { // 0x33
2115 #ifdef PSXBIOS_LOG
2116         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2117 #endif
2118
2119         switch (a2) {
2120                 case 0: // SEEK_SET
2121                         FDesc[a0].offset = a1;
2122                         v0 = a1;
2123 //                      DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2124 //                      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2125                         break;
2126
2127                 case 1: // SEEK_CUR
2128                         FDesc[a0].offset+= a1;
2129                         v0 = FDesc[a0].offset;
2130                         break;
2131         }
2132
2133         pc0 = ra;
2134 }
2135
2136
2137 /*
2138  *      int read(int fd , void *buf , int nbytes);
2139  */
2140
2141 void psxBios_read() { // 0x34
2142         char *ptr;
2143         void *pa1 = Ra1;
2144
2145 #ifdef PSXBIOS_LOG
2146         PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2147 #endif
2148
2149         v0 = -1;
2150
2151         if (pa1) {
2152                 switch (a0) {
2153                         case 2: buread(pa1, 1, a2); break;
2154                         case 3: buread(pa1, 2, a2); break;
2155                 }
2156         }
2157
2158         pc0 = ra;
2159 }
2160
2161 /*
2162  *      int write(int fd , void *buf , int nbytes);
2163  */
2164
2165 void psxBios_write() { // 0x35/0x03
2166         char *ptr;
2167         void *pa1 = Ra1;
2168
2169 #ifdef PSXBIOS_LOG
2170         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2171 #endif
2172
2173         v0 = -1;
2174         if (!pa1) {
2175                 pc0 = ra;
2176                 return;
2177         }
2178
2179         if (a0 == 1) { // stdout
2180                 char *ptr = pa1;
2181
2182                 v0 = a2;
2183                 while (a2 > 0) {
2184                         SysPrintf("%c", *ptr++); a2--;
2185                 }
2186                 pc0 = ra; return;
2187         }
2188
2189         switch (a0) {
2190                 case 2: buwrite(pa1, 1, a2); break;
2191                 case 3: buwrite(pa1, 2, a2); break;
2192         }
2193
2194         pc0 = ra;
2195 }
2196
2197 /*
2198  *      int close(int fd);
2199  */
2200
2201 void psxBios_close() { // 0x36
2202 #ifdef PSXBIOS_LOG
2203         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2204 #endif
2205
2206         v0 = a0;
2207         pc0 = ra;
2208 }
2209
2210 void psxBios_putchar() { // 3d
2211         SysPrintf("%c", (char)a0);
2212         pc0 = ra;
2213 }
2214
2215 void psxBios_puts() { // 3e/3f
2216         SysPrintf("%s", Ra0);
2217         pc0 = ra;
2218 }
2219
2220
2221 /* To avoid any issues with different behaviour when using the libc's own strlen instead.
2222  * We want to mimic the PSX's behaviour in this case for bufile. */
2223 static size_t strlen_internal(char* p)
2224 {
2225         size_t size_of_array = 0;
2226         while (*p++) size_of_array++;
2227         return size_of_array;
2228 }
2229
2230 #define bufile(mcd) { \
2231         size_t size_of_name = strlen_internal(dir->name); \
2232         while (nfile < 16) { \
2233                 int match=1; \
2234  \
2235                 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
2236                 nfile++; \
2237                 if ((*ptr & 0xF0) != 0x50) continue; \
2238                 /* Bug link files show up as free block. */ \
2239                 if (!ptr[0xa]) continue; \
2240                 ptr+= 0xa; \
2241                 if (pfile[0] == 0) { \
2242                         strncpy(dir->name, ptr, sizeof(dir->name) - 1); \
2243                         if (size_of_name < sizeof(dir->name)) dir->name[size_of_name] = '\0'; \
2244                 } else for (i=0; i<20; i++) { \
2245                         if (pfile[i] == ptr[i]) { \
2246                                                                 dir->name[i] = ptr[i]; continue; } \
2247                         if (pfile[i] == '?') { \
2248                                 dir->name[i] = ptr[i]; continue; } \
2249                         if (pfile[i] == '*') { \
2250                                 strcpy(dir->name+i, ptr+i); break; } \
2251                         match = 0; break; \
2252                 } \
2253                 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
2254                 if (match == 0) { continue; } \
2255                 dir->size = 8192; \
2256                 v0 = _dir; \
2257                 break; \
2258         } \
2259 }
2260
2261 /*
2262  *      struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2263  */
2264
2265 void psxBios_firstfile() { // 42
2266         struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
2267         void *pa0 = Ra0;
2268         u32 _dir = a1;
2269         char *ptr;
2270         int i;
2271
2272 #ifdef PSXBIOS_LOG
2273         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2274 #endif
2275
2276         v0 = 0;
2277
2278         if (pa0) {
2279                 strcpy(ffile, pa0);
2280                 pfile = ffile+5;
2281                 nfile = 1;
2282                 if (!strncmp(pa0, "bu00", 4)) {
2283                         // firstfile() calls _card_read() internally, so deliver it's event
2284                         DeliverEvent(0x11, 0x2);
2285                         bufile(1);
2286                 } else if (!strncmp(pa0, "bu10", 4)) {
2287                         // firstfile() calls _card_read() internally, so deliver it's event
2288                         DeliverEvent(0x11, 0x2);
2289                         bufile(2);
2290                 }
2291         }
2292
2293         pc0 = ra;
2294 }
2295
2296 /*
2297  *      struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2298  */
2299
2300 void psxBios_nextfile() { // 43
2301         struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2302         u32 _dir = a0;
2303         char *ptr;
2304         int i;
2305
2306 #ifdef PSXBIOS_LOG
2307         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2308 #endif
2309
2310         v0 = 0;
2311
2312         if (!strncmp(ffile, "bu00", 4)) {
2313                 bufile(1);
2314         }
2315
2316         if (!strncmp(ffile, "bu10", 4)) {
2317                 bufile(2);
2318         }
2319
2320         pc0 = ra;
2321 }
2322
2323 #define burename(mcd) { \
2324         for (i=1; i<16; i++) { \
2325                 int namelen, j, xor = 0; \
2326                 ptr = Mcd##mcd##Data + 128 * i; \
2327                 if ((*ptr & 0xF0) != 0x50) continue; \
2328                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2329                 namelen = strlen(Ra1+5); \
2330                 memcpy(ptr+0xa, Ra1+5, namelen); \
2331                 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2332                 for (j=0; j<127; j++) xor^= ptr[j]; \
2333                 ptr[127] = xor; \
2334                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2335                 v0 = 1; \
2336                 break; \
2337         } \
2338 }
2339
2340 /*
2341  *      int rename(char *old, char *new);
2342  */
2343
2344 void psxBios_rename() { // 44
2345         void *pa0 = Ra0;
2346         void *pa1 = Ra1;
2347         char *ptr;
2348         int i;
2349
2350 #ifdef PSXBIOS_LOG
2351         PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2352 #endif
2353
2354         v0 = 0;
2355
2356         if (pa0 && pa1) {
2357                 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2358                         burename(1);
2359                 }
2360
2361                 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2362                         burename(2);
2363                 }
2364         }
2365
2366         pc0 = ra;
2367 }
2368
2369
2370 #define budelete(mcd) { \
2371         for (i=1; i<16; i++) { \
2372                 ptr = Mcd##mcd##Data + 128 * i; \
2373                 if ((*ptr & 0xF0) != 0x50) continue; \
2374                 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2375                 *ptr = (*ptr & 0xf) | 0xA0; \
2376                 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2377                 SysPrintf("delete %s\n", ptr+0xa); \
2378                 v0 = 1; \
2379                 break; \
2380         } \
2381 }
2382
2383 /*
2384  *      int delete(char *name);
2385  */
2386
2387 void psxBios_delete() { // 45
2388         void *pa0 = Ra0;
2389         char *ptr;
2390         int i;
2391
2392 #ifdef PSXBIOS_LOG
2393         PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2394 #endif
2395
2396         v0 = 0;
2397
2398         if (pa0) {
2399                 if (!strncmp(pa0, "bu00", 4)) {
2400                         budelete(1);
2401                 }
2402
2403                 if (!strncmp(pa0, "bu10", 4)) {
2404                         budelete(2);
2405                 }
2406         }
2407
2408         pc0 = ra;
2409 }
2410
2411 void psxBios_InitCARD() { // 4a
2412 #ifdef PSXBIOS_LOG
2413         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2414 #endif
2415
2416         CardState = 0;
2417
2418         pc0 = ra;
2419 }
2420
2421 void psxBios_StartCARD() { // 4b
2422 #ifdef PSXBIOS_LOG
2423         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2424 #endif
2425
2426         if (CardState == 0) CardState = 1;
2427
2428         pc0 = ra;
2429 }
2430
2431 void psxBios_StopCARD() { // 4c
2432 #ifdef PSXBIOS_LOG
2433         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2434 #endif
2435
2436         if (CardState == 1) CardState = 0;
2437
2438         pc0 = ra;
2439 }
2440
2441 void psxBios__card_write() { // 0x4e
2442         void *pa2 = Ra2;
2443         int port;
2444
2445 #ifdef PSXBIOS_LOG
2446         PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2447 #endif
2448         /* Function also accepts sector 400h (a bug) */
2449         if (!(a1 <= 0x400))
2450         {
2451                 /* Invalid sectors */
2452                 v0 = 0; pc0 = ra;
2453                 return;
2454         }
2455         card_active_chan = a0;
2456         port = a0 >> 4;
2457
2458         if (pa2) {
2459                 if (port == 0) {
2460                         memcpy(Mcd1Data + a1 * 128, pa2, 128);
2461                         SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2462                 } else {
2463                         memcpy(Mcd2Data + a1 * 128, pa2, 128);
2464                         SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2465                 }
2466         }
2467
2468         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2469 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2470
2471         v0 = 1; pc0 = ra;
2472 }
2473
2474 void psxBios__card_read() { // 0x4f
2475         void *pa2 = Ra2;
2476         int port;
2477
2478 #ifdef PSXBIOS_LOG
2479         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2480 #endif
2481         /* Function also accepts sector 400h (a bug) */
2482         if (!(a1 <= 0x400))
2483         {
2484                 /* Invalid sectors */
2485                 v0 = 0; pc0 = ra;
2486                 return;
2487         }
2488         card_active_chan = a0;
2489         port = a0 >> 4;
2490
2491         if (pa2) {
2492                 if (port == 0) {
2493                         memcpy(pa2, Mcd1Data + a1 * 128, 128);
2494                 } else {
2495                         memcpy(pa2, Mcd2Data + a1 * 128, 128);
2496                 }
2497         }
2498
2499         DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2500 //      DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2501
2502         v0 = 1; pc0 = ra;
2503 }
2504
2505 void psxBios__new_card() { // 0x50
2506 #ifdef PSXBIOS_LOG
2507         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2508 #endif
2509
2510         pc0 = ra;
2511 }
2512
2513 /* According to a user, this allows Final Fantasy Tactics to save/load properly */
2514 void psxBios__get_error(void) // 55
2515 {
2516         v0 = 0;
2517         pc0 = ra;
2518 }
2519
2520 void psxBios_Krom2RawAdd() { // 0x51
2521         int i = 0;
2522
2523         const u32 table_8140[][2] = {
2524                 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2525                 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2526                 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2527                 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2528                 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2529                 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2530                 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2531                 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2532                 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2533                 {0xffff, 0}
2534         };
2535
2536         const u32 table_889f[][2] = {
2537                 {0x889f, 0x3d68},  {0x8900, 0x40ec},  {0x897f, 0x4fb0},  {0x8a00, 0x56f4},
2538                 {0x8a7f, 0x65b8},  {0x8b00, 0x6cfc},  {0x8b7f, 0x7bc0},  {0x8c00, 0x8304},
2539                 {0x8c7f, 0x91c8},  {0x8d00, 0x990c},  {0x8d7f, 0xa7d0},  {0x8e00, 0xaf14},
2540                 {0x8e7f, 0xbdd8},  {0x8f00, 0xc51c},  {0x8f7f, 0xd3e0},  {0x9000, 0xdb24},
2541                 {0x907f, 0xe9e8},  {0x9100, 0xf12c},  {0x917f, 0xfff0},  {0x9200, 0x10734},
2542                 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2543                 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2544                 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2545                 {0xffff, 0}
2546         };
2547
2548         if (a0 >= 0x8140 && a0 <= 0x84be) {
2549                 while (table_8140[i][0] <= a0) i++;
2550                 a0 -= table_8140[i - 1][0];
2551                 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2552         } else if (a0 >= 0x889f && a0 <= 0x9872) {
2553                 while (table_889f[i][0] <= a0) i++;
2554                 a0 -= table_889f[i - 1][0];
2555                 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2556         } else {
2557                 v0 = 0xffffffff;
2558         }
2559
2560         pc0 = ra;
2561 }
2562
2563 void psxBios_GetC0Table() { // 56
2564 #ifdef PSXBIOS_LOG
2565         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2566 #endif
2567
2568         v0 = 0x674; pc0 = ra;
2569 }
2570
2571 void psxBios_GetB0Table() { // 57
2572 #ifdef PSXBIOS_LOG
2573         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2574 #endif
2575
2576         v0 = 0x874; pc0 = ra;
2577 }
2578
2579 void psxBios__card_chan() { // 0x58
2580 #ifdef PSXBIOS_LOG
2581         PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2582 #endif
2583
2584         v0 = card_active_chan;
2585         pc0 = ra;
2586 }
2587
2588 void psxBios_ChangeClearPad() { // 5b
2589 #ifdef PSXBIOS_LOG
2590         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2591 #endif
2592
2593         pc0 = ra;
2594 }
2595
2596 void psxBios__card_status() { // 5c
2597 #ifdef PSXBIOS_LOG
2598         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5c], a0);
2599 #endif
2600
2601         v0 = card_active_chan;
2602         pc0 = ra;
2603 }
2604
2605 void psxBios__card_wait() { // 5d
2606 #ifdef PSXBIOS_LOG
2607         PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5d], a0);
2608 #endif
2609
2610         v0 = 1;
2611         pc0 = ra;
2612 }
2613
2614 /* System calls C0 */
2615
2616 /*
2617  * int SysEnqIntRP(int index , long *queue);
2618  */
2619
2620 void psxBios_SysEnqIntRP() { // 02
2621 #ifdef PSXBIOS_LOG
2622         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2623 #endif
2624
2625         SysIntRP[a0] = a1;
2626
2627         v0 = 0; pc0 = ra;
2628 }
2629
2630 /*
2631  * int SysDeqIntRP(int index , long *queue);
2632  */
2633
2634 void psxBios_SysDeqIntRP() { // 03
2635 #ifdef PSXBIOS_LOG
2636         PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2637 #endif
2638
2639         SysIntRP[a0] = 0;
2640
2641         v0 = 0; pc0 = ra;
2642 }
2643
2644 void psxBios_ChangeClearRCnt() { // 0a
2645         u32 *ptr;
2646
2647 #ifdef PSXBIOS_LOG
2648         PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2649 #endif
2650
2651         ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2652         v0 = *ptr;
2653         *ptr = a1;
2654
2655 //      psxRegs.CP0.n.Status|= 0x404;
2656         pc0 = ra;
2657 }
2658
2659 void psxBios_dummy() {
2660 #ifdef PSXBIOS_LOG
2661         PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2662 #endif
2663         pc0 = ra;
2664 }
2665
2666 void (*biosA0[256])();
2667 void (*biosB0[256])();
2668 void (*biosC0[256])();
2669
2670 #include "sjisfont.h"
2671
2672 void psxBiosInit() {
2673         u32 base, size;
2674         u32 *ptr;
2675         int i;
2676         uLongf len;
2677
2678         for(i = 0; i < 256; i++) {
2679                 biosA0[i] = NULL;
2680                 biosB0[i] = NULL;
2681                 biosC0[i] = NULL;
2682         }
2683         biosA0[0x3e] = psxBios_puts;
2684         biosA0[0x3f] = psxBios_printf;
2685
2686         biosB0[0x3d] = psxBios_putchar;
2687         biosB0[0x3f] = psxBios_puts;
2688
2689         if (!Config.HLE) return;
2690
2691         for(i = 0; i < 256; i++) {
2692                 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2693                 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2694                 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2695         }
2696
2697         biosA0[0x00] = psxBios_open;
2698         biosA0[0x01] = psxBios_lseek;
2699         biosA0[0x02] = psxBios_read;
2700         biosA0[0x03] = psxBios_write;
2701         biosA0[0x04] = psxBios_close;
2702         //biosA0[0x05] = psxBios_ioctl;
2703         //biosA0[0x06] = psxBios_exit;
2704         //biosA0[0x07] = psxBios_sys_a0_07;
2705         biosA0[0x08] = psxBios_getc;
2706         biosA0[0x09] = psxBios_putc;
2707         biosA0[0x0a] = psxBios_todigit;
2708         //biosA0[0x0b] = psxBios_atof;
2709         //biosA0[0x0c] = psxBios_strtoul;
2710         //biosA0[0x0d] = psxBios_strtol;
2711         biosA0[0x0e] = psxBios_abs;
2712         biosA0[0x0f] = psxBios_labs;
2713         biosA0[0x10] = psxBios_atoi;
2714         biosA0[0x11] = psxBios_atol;
2715         //biosA0[0x12] = psxBios_atob;
2716         biosA0[0x13] = psxBios_setjmp;
2717         biosA0[0x14] = psxBios_longjmp;
2718         biosA0[0x15] = psxBios_strcat;
2719         biosA0[0x16] = psxBios_strncat;
2720         biosA0[0x17] = psxBios_strcmp;
2721         biosA0[0x18] = psxBios_strncmp;
2722         biosA0[0x19] = psxBios_strcpy;
2723         biosA0[0x1a] = psxBios_strncpy;
2724         biosA0[0x1b] = psxBios_strlen;
2725         biosA0[0x1c] = psxBios_index;
2726         biosA0[0x1d] = psxBios_rindex;
2727         biosA0[0x1e] = psxBios_strchr;
2728         biosA0[0x1f] = psxBios_strrchr;
2729         biosA0[0x20] = psxBios_strpbrk;
2730         biosA0[0x21] = psxBios_strspn;
2731         biosA0[0x22] = psxBios_strcspn;
2732         biosA0[0x23] = psxBios_strtok;
2733         biosA0[0x24] = psxBios_strstr;
2734         biosA0[0x25] = psxBios_toupper;
2735         biosA0[0x26] = psxBios_tolower;
2736         biosA0[0x27] = psxBios_bcopy;
2737         biosA0[0x28] = psxBios_bzero;
2738         biosA0[0x29] = psxBios_bcmp;
2739         biosA0[0x2a] = psxBios_memcpy;
2740         biosA0[0x2b] = psxBios_memset;
2741         biosA0[0x2c] = psxBios_memmove;
2742         biosA0[0x2d] = psxBios_memcmp;
2743         biosA0[0x2e] = psxBios_memchr;
2744         biosA0[0x2f] = psxBios_rand;
2745         biosA0[0x30] = psxBios_srand;
2746         biosA0[0x31] = psxBios_qsort;
2747         //biosA0[0x32] = psxBios_strtod;
2748         biosA0[0x33] = psxBios_malloc;
2749         biosA0[0x34] = psxBios_free;
2750         //biosA0[0x35] = psxBios_lsearch;
2751         //biosA0[0x36] = psxBios_bsearch;
2752         biosA0[0x37] = psxBios_calloc;
2753         biosA0[0x38] = psxBios_realloc;
2754         biosA0[0x39] = psxBios_InitHeap;
2755         //biosA0[0x3a] = psxBios__exit;
2756         biosA0[0x3b] = psxBios_getchar;
2757         biosA0[0x3c] = psxBios_putchar;
2758         //biosA0[0x3d] = psxBios_gets;
2759         //biosA0[0x40] = psxBios_sys_a0_40;
2760         //biosA0[0x41] = psxBios_LoadTest;
2761         biosA0[0x42] = psxBios_Load;
2762         biosA0[0x43] = psxBios_Exec;
2763         biosA0[0x44] = psxBios_FlushCache;
2764         //biosA0[0x45] = psxBios_InstallInterruptHandler;
2765         biosA0[0x46] = psxBios_GPU_dw;
2766         biosA0[0x47] = psxBios_mem2vram;
2767         biosA0[0x48] = psxBios_SendGPU;
2768         biosA0[0x49] = psxBios_GPU_cw;
2769         biosA0[0x4a] = psxBios_GPU_cwb;
2770         biosA0[0x4b] = psxBios_GPU_SendPackets;
2771         biosA0[0x4c] = psxBios_sys_a0_4c;
2772         biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2773         //biosA0[0x4e] = psxBios_GPU_sync;
2774         //biosA0[0x4f] = psxBios_sys_a0_4f;
2775         //biosA0[0x50] = psxBios_sys_a0_50;
2776         biosA0[0x51] = psxBios_LoadExec;
2777         //biosA0[0x52] = psxBios_GetSysSp;
2778         //biosA0[0x53] = psxBios_sys_a0_53;
2779         //biosA0[0x54] = psxBios__96_init_a54;
2780         //biosA0[0x55] = psxBios__bu_init_a55;
2781         //biosA0[0x56] = psxBios__96_remove_a56;
2782         //biosA0[0x57] = psxBios_sys_a0_57;
2783         //biosA0[0x58] = psxBios_sys_a0_58;
2784         //biosA0[0x59] = psxBios_sys_a0_59;
2785         //biosA0[0x5a] = psxBios_sys_a0_5a;
2786         //biosA0[0x5b] = psxBios_dev_tty_init;
2787         //biosA0[0x5c] = psxBios_dev_tty_open;
2788         //biosA0[0x5d] = psxBios_sys_a0_5d;
2789         //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2790         //biosA0[0x5f] = psxBios_dev_cd_open;
2791         //biosA0[0x60] = psxBios_dev_cd_read;
2792         //biosA0[0x61] = psxBios_dev_cd_close;
2793         //biosA0[0x62] = psxBios_dev_cd_firstfile;
2794         //biosA0[0x63] = psxBios_dev_cd_nextfile;
2795         //biosA0[0x64] = psxBios_dev_cd_chdir;
2796         //biosA0[0x65] = psxBios_dev_card_open;
2797         //biosA0[0x66] = psxBios_dev_card_read;
2798         //biosA0[0x67] = psxBios_dev_card_write;
2799         //biosA0[0x68] = psxBios_dev_card_close;
2800         //biosA0[0x69] = psxBios_dev_card_firstfile;
2801         //biosA0[0x6a] = psxBios_dev_card_nextfile;
2802         //biosA0[0x6b] = psxBios_dev_card_erase;
2803         //biosA0[0x6c] = psxBios_dev_card_undelete;
2804         //biosA0[0x6d] = psxBios_dev_card_format;
2805         //biosA0[0x6e] = psxBios_dev_card_rename;
2806         //biosA0[0x6f] = psxBios_dev_card_6f;
2807         biosA0[0x70] = psxBios__bu_init;
2808         biosA0[0x71] = psxBios__96_init;
2809         biosA0[0x72] = psxBios__96_remove;
2810         //biosA0[0x73] = psxBios_sys_a0_73;
2811         //biosA0[0x74] = psxBios_sys_a0_74;
2812         //biosA0[0x75] = psxBios_sys_a0_75;
2813         //biosA0[0x76] = psxBios_sys_a0_76;
2814         //biosA0[0x77] = psxBios_sys_a0_77;
2815         //biosA0[0x78] = psxBios__96_CdSeekL;
2816         //biosA0[0x79] = psxBios_sys_a0_79;
2817         //biosA0[0x7a] = psxBios_sys_a0_7a;
2818         //biosA0[0x7b] = psxBios_sys_a0_7b;
2819         //biosA0[0x7c] = psxBios__96_CdGetStatus;
2820         //biosA0[0x7d] = psxBios_sys_a0_7d;
2821         //biosA0[0x7e] = psxBios__96_CdRead;
2822         //biosA0[0x7f] = psxBios_sys_a0_7f;
2823         //biosA0[0x80] = psxBios_sys_a0_80;
2824         //biosA0[0x81] = psxBios_sys_a0_81;
2825         //biosA0[0x82] = psxBios_sys_a0_82;
2826         //biosA0[0x83] = psxBios_sys_a0_83;
2827         //biosA0[0x84] = psxBios_sys_a0_84;
2828         //biosA0[0x85] = psxBios__96_CdStop;
2829         //biosA0[0x86] = psxBios_sys_a0_86;
2830         //biosA0[0x87] = psxBios_sys_a0_87;
2831         //biosA0[0x88] = psxBios_sys_a0_88;
2832         //biosA0[0x89] = psxBios_sys_a0_89;
2833         //biosA0[0x8a] = psxBios_sys_a0_8a;
2834         //biosA0[0x8b] = psxBios_sys_a0_8b;
2835         //biosA0[0x8c] = psxBios_sys_a0_8c;
2836         //biosA0[0x8d] = psxBios_sys_a0_8d;
2837         //biosA0[0x8e] = psxBios_sys_a0_8e;
2838         //biosA0[0x8f] = psxBios_sys_a0_8f;
2839         //biosA0[0x90] = psxBios_sys_a0_90;
2840         //biosA0[0x91] = psxBios_sys_a0_91;
2841         //biosA0[0x92] = psxBios_sys_a0_92;
2842         //biosA0[0x93] = psxBios_sys_a0_93;
2843         //biosA0[0x94] = psxBios_sys_a0_94;
2844         //biosA0[0x95] = psxBios_sys_a0_95;
2845         //biosA0[0x96] = psxBios_AddCDROMDevice;
2846         //biosA0[0x97] = psxBios_AddMemCardDevide;
2847         //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2848         //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2849         //biosA0[0x9a] = psxBios_sys_a0_9a;
2850         //biosA0[0x9b] = psxBios_sys_a0_9b;
2851         //biosA0[0x9c] = psxBios_SetConf;
2852         //biosA0[0x9d] = psxBios_GetConf;
2853         //biosA0[0x9e] = psxBios_sys_a0_9e;
2854         biosA0[0x9f] = psxBios_SetMem;
2855         //biosA0[0xa0] = psxBios__boot;
2856         //biosA0[0xa1] = psxBios_SystemError;
2857         //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2858         //biosA0[0xa3] = psxBios_DequeueCdIntr;
2859         //biosA0[0xa4] = psxBios_sys_a0_a4;
2860         //biosA0[0xa5] = psxBios_ReadSector;
2861         //biosA0[0xa6] = psxBios_get_cd_status;
2862         //biosA0[0xa7] = psxBios_bufs_cb_0;
2863         //biosA0[0xa8] = psxBios_bufs_cb_1;
2864         //biosA0[0xa9] = psxBios_bufs_cb_2;
2865         //biosA0[0xaa] = psxBios_bufs_cb_3;
2866         biosA0[0xab] = psxBios__card_info;
2867         biosA0[0xac] = psxBios__card_load;
2868         //biosA0[0axd] = psxBios__card_auto;
2869         //biosA0[0xae] = psxBios_bufs_cd_4;
2870         //biosA0[0xaf] = psxBios_sys_a0_af;
2871         //biosA0[0xb0] = psxBios_sys_a0_b0;
2872         //biosA0[0xb1] = psxBios_sys_a0_b1;
2873         //biosA0[0xb2] = psxBios_do_a_long_jmp
2874         //biosA0[0xb3] = psxBios_sys_a0_b3;
2875         //biosA0[0xb4] = psxBios_sub_function;
2876 //*******************B0 CALLS****************************
2877         //biosB0[0x00] = psxBios_SysMalloc;
2878         //biosB0[0x01] = psxBios_sys_b0_01;
2879         biosB0[0x02] = psxBios_SetRCnt;
2880         biosB0[0x03] = psxBios_GetRCnt;
2881         biosB0[0x04] = psxBios_StartRCnt;
2882         biosB0[0x05] = psxBios_StopRCnt;
2883         biosB0[0x06] = psxBios_ResetRCnt;
2884         biosB0[0x07] = psxBios_DeliverEvent;
2885         biosB0[0x08] = psxBios_OpenEvent;
2886         biosB0[0x09] = psxBios_CloseEvent;
2887         biosB0[0x0a] = psxBios_WaitEvent;
2888         biosB0[0x0b] = psxBios_TestEvent;
2889         biosB0[0x0c] = psxBios_EnableEvent;
2890         biosB0[0x0d] = psxBios_DisableEvent;
2891         biosB0[0x0e] = psxBios_OpenTh;
2892         biosB0[0x0f] = psxBios_CloseTh;
2893         biosB0[0x10] = psxBios_ChangeTh;
2894         //biosB0[0x11] = psxBios_psxBios_b0_11;
2895         biosB0[0x12] = psxBios_InitPAD;
2896         biosB0[0x13] = psxBios_StartPAD;
2897         biosB0[0x14] = psxBios_StopPAD;
2898         biosB0[0x15] = psxBios_PAD_init;
2899         biosB0[0x16] = psxBios_PAD_dr;
2900         biosB0[0x17] = psxBios_ReturnFromException;
2901         biosB0[0x18] = psxBios_ResetEntryInt;
2902         biosB0[0x19] = psxBios_HookEntryInt;
2903         //biosB0[0x1a] = psxBios_sys_b0_1a;
2904         //biosB0[0x1b] = psxBios_sys_b0_1b;
2905         //biosB0[0x1c] = psxBios_sys_b0_1c;
2906         //biosB0[0x1d] = psxBios_sys_b0_1d;
2907         //biosB0[0x1e] = psxBios_sys_b0_1e;
2908         //biosB0[0x1f] = psxBios_sys_b0_1f;
2909         biosB0[0x20] = psxBios_UnDeliverEvent;
2910         //biosB0[0x21] = psxBios_sys_b0_21;
2911         //biosB0[0x22] = psxBios_sys_b0_22;
2912         //biosB0[0x23] = psxBios_sys_b0_23;
2913         //biosB0[0x24] = psxBios_sys_b0_24;
2914         //biosB0[0x25] = psxBios_sys_b0_25;
2915         //biosB0[0x26] = psxBios_sys_b0_26;
2916         //biosB0[0x27] = psxBios_sys_b0_27;
2917         //biosB0[0x28] = psxBios_sys_b0_28;
2918         //biosB0[0x29] = psxBios_sys_b0_29;
2919         //biosB0[0x2a] = psxBios_sys_b0_2a;
2920         //biosB0[0x2b] = psxBios_sys_b0_2b;
2921         //biosB0[0x2c] = psxBios_sys_b0_2c;
2922         //biosB0[0x2d] = psxBios_sys_b0_2d;
2923         //biosB0[0x2e] = psxBios_sys_b0_2e;
2924         //biosB0[0x2f] = psxBios_sys_b0_2f;
2925         //biosB0[0x30] = psxBios_sys_b0_30;
2926         //biosB0[0x31] = psxBios_sys_b0_31;
2927         biosB0[0x32] = psxBios_open;
2928         biosB0[0x33] = psxBios_lseek;
2929         biosB0[0x34] = psxBios_read;
2930         biosB0[0x35] = psxBios_write;
2931         biosB0[0x36] = psxBios_close;
2932         //biosB0[0x37] = psxBios_ioctl;
2933         //biosB0[0x38] = psxBios_exit;
2934         //biosB0[0x39] = psxBios_sys_b0_39;
2935         //biosB0[0x3a] = psxBios_getc;
2936         //biosB0[0x3b] = psxBios_putc;
2937         biosB0[0x3c] = psxBios_getchar;
2938         //biosB0[0x3e] = psxBios_gets;
2939         //biosB0[0x40] = psxBios_cd;
2940         biosB0[0x41] = psxBios_format;
2941         biosB0[0x42] = psxBios_firstfile;
2942         biosB0[0x43] = psxBios_nextfile;
2943         biosB0[0x44] = psxBios_rename;
2944         biosB0[0x45] = psxBios_delete;
2945         //biosB0[0x46] = psxBios_undelete;
2946         //biosB0[0x47] = psxBios_AddDevice;
2947         //biosB0[0x48] = psxBios_RemoteDevice;
2948         //biosB0[0x49] = psxBios_PrintInstalledDevices;
2949         biosB0[0x4a] = psxBios_InitCARD;
2950         biosB0[0x4b] = psxBios_StartCARD;
2951         biosB0[0x4c] = psxBios_StopCARD;
2952         //biosB0[0x4d] = psxBios_sys_b0_4d;
2953         biosB0[0x4e] = psxBios__card_write;
2954         biosB0[0x4f] = psxBios__card_read;
2955         biosB0[0x50] = psxBios__new_card;
2956         biosB0[0x51] = psxBios_Krom2RawAdd;
2957         //biosB0[0x52] = psxBios_sys_b0_52;
2958         //biosB0[0x53] = psxBios_sys_b0_53;
2959         //biosB0[0x54] = psxBios__get_errno;
2960         biosB0[0x55] = psxBios__get_error;
2961         biosB0[0x56] = psxBios_GetC0Table;
2962         biosB0[0x57] = psxBios_GetB0Table;
2963         biosB0[0x58] = psxBios__card_chan;
2964         //biosB0[0x59] = psxBios_sys_b0_59;
2965         //biosB0[0x5a] = psxBios_sys_b0_5a;
2966         biosB0[0x5b] = psxBios_ChangeClearPad;
2967         biosB0[0x5c] = psxBios__card_status;
2968         biosB0[0x5d] = psxBios__card_wait;
2969 //*******************C0 CALLS****************************
2970         //biosC0[0x00] = psxBios_InitRCnt;
2971         //biosC0[0x01] = psxBios_InitException;
2972         biosC0[0x02] = psxBios_SysEnqIntRP;
2973         biosC0[0x03] = psxBios_SysDeqIntRP;
2974         //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2975         //biosC0[0x05] = psxBios_get_free_TCB_slot;
2976         //biosC0[0x06] = psxBios_ExceptionHandler;
2977         //biosC0[0x07] = psxBios_InstallExeptionHandler;
2978         //biosC0[0x08] = psxBios_SysInitMemory;
2979         //biosC0[0x09] = psxBios_SysInitKMem;
2980         biosC0[0x0a] = psxBios_ChangeClearRCnt;
2981         //biosC0[0x0b] = psxBios_SystemError;
2982         //biosC0[0x0c] = psxBios_InitDefInt;
2983         //biosC0[0x0d] = psxBios_sys_c0_0d;
2984         //biosC0[0x0e] = psxBios_sys_c0_0e;
2985         //biosC0[0x0f] = psxBios_sys_c0_0f;
2986         //biosC0[0x10] = psxBios_sys_c0_10;
2987         //biosC0[0x11] = psxBios_sys_c0_11;
2988         //biosC0[0x12] = psxBios_InstallDevices;
2989         //biosC0[0x13] = psxBios_FlushStfInOutPut;
2990         //biosC0[0x14] = psxBios_sys_c0_14;
2991         //biosC0[0x15] = psxBios__cdevinput;
2992         //biosC0[0x16] = psxBios__cdevscan;
2993         //biosC0[0x17] = psxBios__circgetc;
2994         //biosC0[0x18] = psxBios__circputc;
2995         //biosC0[0x19] = psxBios_ioabort;
2996         //biosC0[0x1a] = psxBios_sys_c0_1a
2997         //biosC0[0x1b] = psxBios_KernelRedirect;
2998         //biosC0[0x1c] = psxBios_PatchAOTable;
2999 //************** THE END ***************************************
3000 /**/
3001         base = 0x1000;
3002         size = sizeof(EvCB) * 32;
3003         Event = (void *)&psxR[base]; base += size * 6;
3004         memset(Event, 0, size * 6);
3005         HwEV = Event;
3006         EvEV = Event + 32;
3007         RcEV = Event + 32 * 2;
3008         UeEV = Event + 32 * 3;
3009         SwEV = Event + 32 * 4;
3010         ThEV = Event + 32 * 5;
3011
3012         ptr = (u32 *)&psxM[0x0874]; // b0 table
3013         ptr[0] = SWAPu32(0x4c54 - 0x884);
3014
3015         ptr = (u32 *)&psxM[0x0674]; // c0 table
3016         ptr[6] = SWAPu32(0xc80);
3017
3018         memset(SysIntRP, 0, sizeof(SysIntRP));
3019         memset(Thread, 0, sizeof(Thread));
3020         Thread[0].status = 2; // main thread
3021
3022         pad_stopped = 1;
3023         jmp_int = NULL;
3024         pad_buf = NULL;
3025         pad_buf1 = NULL;
3026         pad_buf2 = NULL;
3027         pad_buf1len = pad_buf2len = 0;
3028         heap_addr = NULL;
3029         heap_end = NULL;
3030         heap_size = 0;
3031         CardState = -1;
3032         CurThread = 0;
3033         memset(FDesc, 0, sizeof(FDesc));
3034         card_active_chan = 0;
3035
3036         psxMu32ref(0x0150) = SWAPu32(0x160);
3037         psxMu32ref(0x0154) = SWAPu32(0x320);
3038         psxMu32ref(0x0160) = SWAPu32(0x248);
3039         strcpy((char *)&psxM[0x248], "bu");
3040 /*      psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
3041         psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
3042         psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
3043         psxMu32ref(0x09e0) = SWAPu32(0x43d0);
3044         psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
3045 */
3046         // opcode HLE
3047         psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
3048         psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
3049         psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
3050         psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
3051         psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
3052         psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
3053         psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
3054         psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
3055         psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
3056         psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
3057
3058         // initial stack pointer for BIOS interrupt
3059         psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
3060
3061         // initial RNG seed
3062         psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
3063
3064         // fonts
3065         len = 0x80000 - 0x66000;
3066         uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
3067         len = 0x80000 - 0x69d68;
3068         uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
3069
3070         // memory size 2 MB
3071         psxHu32ref(0x1060) = SWAPu32(0x00000b88);
3072
3073         hleSoftCall = FALSE;
3074 }
3075
3076 void psxBiosShutdown() {
3077 }
3078
3079 #define psxBios_PADpoll(pad) { \
3080         PAD##pad##_startPoll(pad); \
3081         pad_buf##pad[0] = 0; \
3082         pad_buf##pad[1] = PAD##pad##_poll(0x42); \
3083         if (!(pad_buf##pad[1] & 0x0f)) { \
3084                 bufcount = 32; \
3085         } else { \
3086                 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
3087         } \
3088         PAD##pad##_poll(0); \
3089         i = 2; \
3090         while (bufcount--) { \
3091                 pad_buf##pad[i++] = PAD##pad##_poll(0); \
3092         } \
3093 }
3094
3095 void biosInterrupt() {
3096         int i, bufcount;
3097
3098 //      if (psxHu32(0x1070) & 0x1) { // Vsync
3099                 if (pad_buf != NULL) {
3100                         u32 *buf = (u32*)pad_buf;
3101
3102                         if (!Config.UseNet) {
3103                                 PAD1_startPoll(1);
3104                                 if (PAD1_poll(0x42) == 0x23) {
3105                                         PAD1_poll(0);
3106                                         *buf = PAD1_poll(0) << 8;
3107                                         *buf |= PAD1_poll(0);
3108                                         PAD1_poll(0);
3109                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
3110                                         *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
3111                                 } else {
3112                                         PAD1_poll(0);
3113                                         *buf = PAD1_poll(0) << 8;
3114                                         *buf|= PAD1_poll(0);
3115                                 }
3116
3117                                 PAD2_startPoll(2);
3118                                 if (PAD2_poll(0x42) == 0x23) {
3119                                         PAD2_poll(0);
3120                                         *buf |= PAD2_poll(0) << 24;
3121                                         *buf |= PAD2_poll(0) << 16;
3122                                         PAD2_poll(0);
3123                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
3124                                         *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
3125                                 } else {
3126                                         PAD2_poll(0);
3127                                         *buf |= PAD2_poll(0) << 24;
3128                                         *buf |= PAD2_poll(0) << 16;
3129                                 }
3130                         } else {
3131                                 u16 data;
3132
3133                                 PAD1_startPoll(1);
3134                                 PAD1_poll(0x42);
3135                                 PAD1_poll(0);
3136                                 data = PAD1_poll(0) << 8;
3137                                 data |= PAD1_poll(0);
3138
3139                                 if (NET_sendPadData(&data, 2) == -1)
3140                                         netError();
3141
3142                                 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
3143                                         netError();
3144                                 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3145                                         netError();
3146                         }
3147                 }
3148                 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3149                         psxBios_PADpoll(1);
3150
3151                         if (NET_sendPadData(pad_buf1, i) == -1)
3152                                 netError();
3153
3154                         if (NET_recvPadData(pad_buf1, 1) == -1)
3155                                 netError();
3156                         if (NET_recvPadData(pad_buf2, 2) == -1)
3157                                 netError();
3158                 } else {
3159                         if (!pad_stopped)  {
3160                                 if (pad_buf1) {
3161                                         psxBios_PADpoll(1);
3162                                 }
3163
3164                                 if (pad_buf2) {
3165                                         psxBios_PADpoll(2);
3166                                 }
3167                         }
3168                 }
3169
3170         if (psxHu32(0x1070) & 0x1) { // Vsync
3171                 if (RcEV[3][1].status == EvStACTIVE) {
3172                         softCall(RcEV[3][1].fhandler);
3173 //                      hwWrite32(0x1f801070, ~(1));
3174                 }
3175         }
3176
3177         if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3178                 int i;
3179
3180                 for (i = 0; i < 3; i++) {
3181                         if (psxHu32(0x1070) & (1 << (i + 4))) {
3182                                 if (RcEV[i][1].status == EvStACTIVE) {
3183                                         softCall(RcEV[i][1].fhandler);
3184                                 }
3185                                 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3186                         }
3187                 }
3188         }
3189 }
3190
3191 void psxBiosException() {
3192         int i;
3193
3194         switch (psxRegs.CP0.n.Cause & 0x3c) {
3195                 case 0x00: // Interrupt
3196                         interrupt_r26=psxRegs.CP0.n.EPC;
3197 #ifdef PSXCPU_LOG
3198 //                      PSXCPU_LOG("interrupt\n");
3199 #endif
3200                         SaveRegs();
3201
3202                         sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3203
3204                         biosInterrupt();
3205
3206                         for (i = 0; i < 8; i++) {
3207                                 if (SysIntRP[i]) {
3208                                         u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3209
3210                                         s0 = queue[2];
3211                                         softCall(queue[1]);
3212                                 }
3213                         }
3214
3215                         if (jmp_int != NULL) {
3216                                 int i;
3217
3218                                 psxHwWrite32(0x1f801070, 0xffffffff);
3219
3220                                 ra = jmp_int[0];
3221                                 sp = jmp_int[1];
3222                                 fp = jmp_int[2];
3223                                 for (i = 0; i < 8; i++) // s0-s7
3224                                          psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3225                                 gp = jmp_int[11];
3226
3227                                 v0 = 1;
3228                                 pc0 = ra;
3229                                 return;
3230                         }
3231                         psxHwWrite16(0x1f801070, 0);
3232                         break;
3233
3234                 case 0x20: // Syscall
3235 #ifdef PSXCPU_LOG
3236                         PSXCPU_LOG("syscall exp %x\n", a0);
3237 #endif
3238                         switch (a0) {
3239                                 case 1: // EnterCritical - disable irq's
3240                                         /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3241                                         v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3242                                         psxRegs.CP0.n.Status &= ~0x404;
3243                                         break;
3244
3245                                 case 2: // ExitCritical - enable irq's
3246                                         psxRegs.CP0.n.Status |= 0x404;
3247                                         break;
3248                                 /* Normally this should cover SYS(00h, SYS(04h but they don't do anything relevant so... */
3249                                 default:
3250                                         break;
3251                         }
3252                         pc0 = psxRegs.CP0.n.EPC + 4;
3253
3254                         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3255                                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3256                         return;
3257
3258                 default:
3259 #ifdef PSXCPU_LOG
3260                         PSXCPU_LOG("unknown bios exception!\n");
3261 #endif
3262                         break;
3263         }
3264
3265         pc0 = psxRegs.CP0.n.EPC;
3266         if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3267
3268         psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3269                                                   ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3270 }
3271
3272 #define bfreeze(ptr, size) { \
3273         if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3274         if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3275         base += size; \
3276 }
3277
3278 #define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3279 #define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3280
3281 #define bfreezepsxMptr(ptr, type) { \
3282         if (Mode == 1) { \
3283                 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3284                 else psxRu32ref(base) = 0; \
3285         } else { \
3286                 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3287                 else (ptr) = NULL; \
3288         } \
3289         base += sizeof(u32); \
3290 }
3291
3292 void psxBiosFreeze(int Mode) {
3293         u32 base = 0x40000;
3294
3295         bfreezepsxMptr(jmp_int, u32);
3296         bfreezepsxMptr(pad_buf, int);
3297         bfreezepsxMptr(pad_buf1, char);
3298         bfreezepsxMptr(pad_buf2, char);
3299         bfreezepsxMptr(heap_addr, u32);
3300         bfreezel(&pad_buf1len);
3301         bfreezel(&pad_buf2len);
3302         bfreezes(regs);
3303         bfreezes(SysIntRP);
3304         bfreezel(&CardState);
3305         bfreezes(Thread);
3306         bfreezel(&CurThread);
3307         bfreezes(FDesc);
3308         bfreezel(&card_active_chan);
3309         bfreezel(&pad_stopped);
3310         bfreezel(&heap_size);
3311 }