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