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psxbios: Add checks for strcmp & strncmp.
[pcsx_rearmed.git] / libpcsxcore / psxbios.c
CommitLineData
ef79bbde
P		 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"
ddbaf678 28#include "gpu.h"
496d88d4 29#include <zlib.h>
ef79bbde 30
452b85f9 31#undef SysPrintf
32#define SysPrintf if (Config.PsxOut) printf
33
ef79bbde
P		 34char *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
95char *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
128char *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
182typedef 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/*
198typedef struct {
199 s32 next;
200 s32 func1;
201 s32 func2;
202 s32 pad;
203} SysRPst;
204*/
205
206typedef struct {
207 s32 status;
208 s32 mode;
209 u32 reg[32];
210 u32 func;
211} TCB;
212
213typedef 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
227struct DIRENTRY {
228 char name[20];
229 s32 attr;
230 s32 size;
231 u32 next;
232 s32 head;
233 char system[4];
234};
235
236typedef struct {
237 char name[32];
238 u32 mode;
239 u32 offset;
240 u32 size;
241 u32 mcfile;
242} FileDesc;
243
244static u32 *jmp_int = NULL;
245static int *pad_buf = NULL;
246static char *pad_buf1 = NULL, *pad_buf2 = NULL;
247static int pad_buf1len, pad_buf2len;
248
249static u32 regs[35];
250static EvCB *Event;
251static EvCB *HwEV; // 0xf0
252static EvCB *EvEV; // 0xf1
253static EvCB *RcEV; // 0xf2
254static EvCB *UeEV; // 0xf3
255static EvCB *SwEV; // 0xf4
256static EvCB *ThEV; // 0xff
26b964b5 257static u32 heap_size = 0;
ef79bbde
P		 258static u32 *heap_addr = NULL;
259static u32 *heap_end = NULL;
260static u32 SysIntRP[8];
261static int CardState = -1;
262static TCB Thread[8];
263static int CurThread = 0;
264static FileDesc FDesc[32];
e9fda093 265static u32 card_active_chan;
ef79bbde
P		 266
267boolean hleSoftCall = FALSE;
268
269static inline void softCall(u32 pc) {
270 pc0 = pc;
271 ra = 0x80001000;
272
273 hleSoftCall = TRUE;
274
275 while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
276
277 hleSoftCall = FALSE;
278}
279
280static inline void softCall2(u32 pc) {
281 u32 sra = ra;
282 pc0 = pc;
283 ra = 0x80001000;
284
285 hleSoftCall = TRUE;
286
287 while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
288 ra = sra;
289
290 hleSoftCall = FALSE;
291}
292
293static inline void DeliverEvent(u32 ev, u32 spec) {
294 if (Event[ev][spec].status != EvStACTIVE) return;
295
296// Event[ev][spec].status = EvStALREADY;
297 if (Event[ev][spec].mode == EvMdINTR) {
298 softCall2(Event[ev][spec].fhandler);
299 } else Event[ev][spec].status = EvStALREADY;
300}
301
302static inline void SaveRegs() {
303 memcpy(regs, psxRegs.GPR.r, 32*4);
304 regs[32] = psxRegs.GPR.n.lo;
305 regs[33] = psxRegs.GPR.n.hi;
306 regs[34] = psxRegs.pc;
307}
308
309static inline void LoadRegs() {
310 memcpy(psxRegs.GPR.r, regs, 32*4);
311 psxRegs.GPR.n.lo = regs[32];
312 psxRegs.GPR.n.hi = regs[33];
313}
314
315/* *
316// *
317// *
318// System calls A0 */
319
d99f6068 320
321#define buread(Ra1, mcd, length) { \
322 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); \
323 ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
324 memcpy(Ra1, ptr, length); \
325 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
326 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
327 if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
328 else v0 = length; \
329 FDesc[1 + mcd].offset += v0; \
330}
331
332#define buwrite(Ra1, mcd, length) { \
333 u32 offset = + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
334 SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
335 ptr = Mcd##mcd##Data + offset; \
336 memcpy(ptr, Ra1, length); \
337 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
338 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
339 FDesc[1 + mcd].offset += length; \
340 if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
341 else v0 = length; \
342}
343
344
324cec89 345/* Internally redirects to "FileRead(fd,tempbuf,1)".*/
346/* For some strange reason, the returned character is sign-expanded; */
347/* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
348/* TODO FIX ME : Properly implement this behaviour */
349void psxBios_getc(void) // 0x03, 0x35
350{
d99f6068 351 char *ptr;
324cec89 352 void *pa1 = Ra1;
353#ifdef PSXBIOS_LOG
354 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
355#endif
356 v0 = -1;
357
358 if (pa1) {
359 switch (a0) {
360 case 2: buread(pa1, 1, 1); break;
361 case 3: buread(pa1, 2, 1); break;
362 }
363 }
364
365 pc0 = ra;
366}
367
368/* Copy of psxBios_write, except size is 1. */
369void psxBios_putc(void) // 0x09, 0x3B
370{
d99f6068 371 char *ptr;
324cec89 372 void *pa1 = Ra1;
373#ifdef PSXBIOS_LOG
374 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
375#endif
376 v0 = -1;
377 if (!pa1) {
378 pc0 = ra;
379 return;
380 }
381
382 if (a0 == 1) { // stdout
383 char *ptr = (char *)pa1;
384
385 v0 = a2;
386 while (a2 > 0) {
387 printf("%c", *ptr++); a2--;
388 }
389 pc0 = ra; return;
390 }
391
392 switch (a0) {
393 case 2: buwrite(pa1, 1, 1); break;
394 case 3: buwrite(pa1, 2, 1); break;
395 }
396
397 pc0 = ra;
398}
ef79bbde 399
ba11675c 400void psxBios_todigit(void) // 0x0a
401{
402 int c = a0;
403#ifdef PSXBIOS_LOG
404 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
405#endif
406 c &= 0xFF;
407 if (c >= 0x30 && c < 0x3A) {
408 c -= 0x30;
409 }
410 else if (c > 0x60 && c < 0x7B) {
411 c -= 0x20;
412 }
413 else if (c > 0x40 && c < 0x5B) {
414 c = c - 0x41 + 10;
415 }
416 else if (c >= 0x80) {
417 c = -1;
418 }
419 else
420 {
421 c = 0x0098967F;
422 }
423 v0 = c;
424 pc0 = ra;
425}
426
ef79bbde
P		 427void psxBios_abs() { // 0x0e
428 if ((s32)a0 < 0) v0 = -(s32)a0;
429 else v0 = a0;
430 pc0 = ra;
431}
432
433void psxBios_labs() { // 0x0f
434 psxBios_abs();
435}
436
437void psxBios_atoi() { // 0x10
438 s32 n = 0, f = 0;
439 char *p = (char *)Ra0;
440
441 for (;;p++) {
442 switch (*p) {
443 case ' ': case '\t': continue;
444 case '-': f++;
445 case '+': p++;
446 }
447 break;
448 }
449
450 while (*p >= '0' && *p <= '9') {
451 n = n * 10 + *p++ - '0';
452 }
453
454 v0 = (f ? -n : n);
455 pc0 = ra;
456}
457
458void psxBios_atol() { // 0x11
459 psxBios_atoi();
460}
461
462void psxBios_setjmp() { // 0x13
463 u32 *jmp_buf = (u32 *)Ra0;
464 int i;
465
466#ifdef PSXBIOS_LOG
467 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
468#endif
469
470 jmp_buf[0] = ra;
471 jmp_buf[1] = sp;
472 jmp_buf[2] = fp;
473 for (i = 0; i < 8; i++) // s0-s7
474 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
475 jmp_buf[11] = gp;
476
477 v0 = 0; pc0 = ra;
478}
479
480void psxBios_longjmp() { // 0x14
481 u32 *jmp_buf = (u32 *)Ra0;
482 int i;
483
484#ifdef PSXBIOS_LOG
485 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
486#endif
487
488 ra = jmp_buf[0]; /* ra */
489 sp = jmp_buf[1]; /* sp */
490 fp = jmp_buf[2]; /* fp */
491 for (i = 0; i < 8; i++) // s0-s7
492 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
493 gp = jmp_buf[11]; /* gp */
494
495 v0 = a1; pc0 = ra;
496}
497
498void psxBios_strcat() { // 0x15
499 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
500
501#ifdef PSXBIOS_LOG
502 PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
503#endif
bee52312 504 if (a0 == 0 || a1 == 0)
505 {
506 v0 = 0;
507 pc0 = ra;
508 return;
509 }
ef79bbde
P		 510 while (*p1++);
511 --p1;
512 while ((*p1++ = *p2++) != '\0');
513
514 v0 = a0; pc0 = ra;
515}
516
517void psxBios_strncat() { // 0x16
518 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
519 s32 n = a2;
520
521#ifdef PSXBIOS_LOG
522 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
523#endif
f42e1e90 524 if (a0 == 0 || a1 == 0)
525 {
526 v0 = 0;
527 pc0 = ra;
528 return;
529 }
ef79bbde
P		 530 while (*p1++);
531 --p1;
532 while ((*p1++ = *p2++) != '\0') {
533 if (--n < 0) {
534 *--p1 = '\0';
535 break;
536 }
537 }
538
539 v0 = a0; pc0 = ra;
540}
541
542void psxBios_strcmp() { // 0x17
543 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
c044e3e5 544 s32 n=0;
545 if (a0 == 0 && a1 == 0)
546 {
547 v0 = 0;
548 pc0 = ra;
549 return;
550 }
551 else if (a0 == 0 && a1 != 0)
552 {
553 v0 = -1;
554 pc0 = ra;
555 return;
556 }
557 else if (a0 != 0 && a1 == 0)
558 {
559 v0 = 1;
560 pc0 = ra;
561 return;
562 }
ef79bbde
P		 563#ifdef PSXBIOS_LOG
564 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
565#endif
566
567 while (*p1 == *p2++) {
c044e3e5 568 n++;
ef79bbde 569 if (*p1++ == '\0') {
c044e3e5 570 v1=n-1;
571 a0+=n;
572 a1+=n;
ef79bbde
P		 573 v0 = 0;
574 pc0 = ra;
575 return;
576 }
577 }
578
579 v0 = (*p1 - *--p2);
c044e3e5 580 v1 = n;
581 a0+=n;
582 a1+=n;
ef79bbde
P		 583 pc0 = ra;
584}
585
586void psxBios_strncmp() { // 0x18
587 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
588 s32 n = a2;
589
590#ifdef PSXBIOS_LOG
591 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
592#endif
593
594 while (--n >= 0 && *p1 == *p2++) {
595 if (*p1++ == '\0') {
596 v0 = 0;
597 pc0 = ra;
598 return;
599 }
600 }
601
602 v0 = (n < 0 ? 0 : *p1 - *--p2);
603 pc0 = ra;
604}
605
606void psxBios_strcpy() { // 0x19
607 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
608 while ((*p1++ = *p2++) != '\0');
609
610 v0 = a0; pc0 = ra;
611}
612
613void psxBios_strncpy() { // 0x1a
614 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
615 s32 n = a2, i;
616
617 for (i = 0; i < n; i++) {
618 if ((*p1++ = *p2++) == '\0') {
619 while (++i < n) {
620 *p1++ = '\0';
621 }
622 v0 = a0; pc0 = ra;
623 return;
624 }
625 }
626
627 v0 = a0; pc0 = ra;
628}
629
630void psxBios_strlen() { // 0x1b
631 char *p = (char *)Ra0;
632 v0 = 0;
633 while (*p++) v0++;
634 pc0 = ra;
635}
636
637void psxBios_index() { // 0x1c
638 char *p = (char *)Ra0;
fcf7ec6c 639 if (a0 == 0)
640 {
641 v0 = 0;
642 pc0 = ra;
643 return;
644 }
645
ef79bbde
P		 646 do {
647 if (*p == a1) {
648 v0 = a0 + (p - (char *)Ra0);
649 pc0 = ra;
650 return;
651 }
652 } while (*p++ != '\0');
653
654 v0 = 0; pc0 = ra;
655}
656
657void psxBios_rindex() { // 0x1d
658 char *p = (char *)Ra0;
659
660 v0 = 0;
fcf7ec6c 661 if (a0 == 0)
662 {
663 pc0 = ra;
664 return;
665 }
ef79bbde
P		 666 do {
667 if (*p == a1)
668 v0 = a0 + (p - (char *)Ra0);
669 } while (*p++ != '\0');
670
671 pc0 = ra;
672}
673
674void psxBios_strchr() { // 0x1e
675 psxBios_index();
676}
677
678void psxBios_strrchr() { // 0x1f
679 psxBios_rindex();
680}
681
682void psxBios_strpbrk() { // 0x20
683 char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
684
685 while ((c = *p1++) != '\0') {
686 for (scanp = p2; (sc = *scanp++) != '\0';) {
687 if (sc == c) {
688 v0 = a0 + (p1 - 1 - (char *)Ra0);
689 pc0 = ra;
690 return;
691 }
692 }
693 }
694
695 // BUG: return a0 instead of NULL if not found
696 v0 = a0; pc0 = ra;
697}
698
699void psxBios_strspn() { // 0x21
700 char *p1, *p2;
701
702 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
703 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
704 if (*p2 == '\0') break;
705 }
706
707 v0 = p1 - (char *)Ra0; pc0 = ra;
708}
709
710void psxBios_strcspn() { // 0x22
711 char *p1, *p2;
712
713 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
714 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
715 if (*p2 != '\0') break;
716 }
717
718 v0 = p1 - (char *)Ra0; pc0 = ra;
719}
720
721void psxBios_strtok() { // 0x23
722 char *pcA0 = (char *)Ra0;
723 char *pcRet = strtok(pcA0, (char *)Ra1);
724 if (pcRet)
725 v0 = a0 + pcRet - pcA0;
726 else
727 v0 = 0;
728 pc0 = ra;
729}
730
731void psxBios_strstr() { // 0x24
732 char *p = (char *)Ra0, *p1, *p2;
733
734 while (*p != '\0') {
735 p1 = p;
736 p2 = (char *)Ra1;
737
738 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
739 p1++; p2++;
740 }
741
742 if (*p2 == '\0') {
743 v0 = a0 + (p - (char *)Ra0);
744 pc0 = ra;
745 return;
746 }
747
748 p++;
749 }
750
751 v0 = 0; pc0 = ra;
752}
753
754void psxBios_toupper() { // 0x25
755 v0 = (s8)(a0 & 0xff);
756 if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
757 pc0 = ra;
758}
759
760void psxBios_tolower() { // 0x26
761 v0 = (s8)(a0 & 0xff);
762 if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
763 pc0 = ra;
764}
765
766void psxBios_bcopy() { // 0x27
767 char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
0148ffb7 768 v0 = a0;
769 if (a0 == 0 || a2 > 0x7FFFFFFF)
770 {
771 pc0 = ra;
772 return;
773 }
5ec7acdf 774 while ((s32)a2-- > 0) *p1++ = *p2++;
0148ffb7 775 a2 = 0;
ef79bbde
P		 776 pc0 = ra;
777}
778
779void psxBios_bzero() { // 0x28
780 char *p = (char *)Ra0;
01724d23 781 v0 = a0;
782 /* Same as memset here (See memset below) */
783 if (a1 > 0x7FFFFFFF || a1 == 0)
784 {
785 v0 = 0;
786 pc0 = ra;
787 return;
788 }
789 else if (a0 == 0)
790 {
791 pc0 = ra;
792 return;
793 }
5ec7acdf 794 while ((s32)a1-- > 0) *p++ = '\0';
01724d23 795 a1 = 0;
ef79bbde
P		 796 pc0 = ra;
797}
798
799void psxBios_bcmp() { // 0x29
800 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
801
802 if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
803
5ec7acdf 804 while ((s32)a2-- > 0) {
ef79bbde
P		 805 if (*p1++ != *p2++) {
806 v0 = *p1 - *p2; // BUG: compare the NEXT byte
807 pc0 = ra;
808 return;
809 }
810 }
811
812 v0 = 0; pc0 = ra;
813}
814
815void psxBios_memcpy() { // 0x2a
816 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
ef1da3dc 817 s32 n=0;
818 v0 = a0;
819 if (a0 == 0 || a2 > 0x7FFFFFFF)
820 {
821 pc0 = ra;
822 return;
823 }
824 while ((s32)a2-- > 0) {
825 n++;
826 *p1++ = *p2++;
827 }
828 a2 = 0;
829 pc0 = ra;
ef79bbde
P		 830}
831
832void psxBios_memset() { // 0x2b
833 char *p = (char *)Ra0;
3f28b64f 834 v0 = a0;
835 if (a2 > 0x7FFFFFFF || a2 == 0)
836 {
837 v0 = 0;
838 pc0 = ra;
839 return;
840 }
841 if (a0 == 0)
842 {
843 pc0 = ra;
844 return;
845 }
5ec7acdf 846 while ((s32)a2-- > 0) *p++ = (char)a1;
5ec7acdf 847 a2 = 0;
ef79bbde
P		 848 v0 = a0; pc0 = ra;
849}
850
851void psxBios_memmove() { // 0x2c
852 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
112dddf5 853 v0 = a0;
854 if (a0 == 0 || a2 > 0x7FFFFFFF)
855 {
856 pc0 = ra;
857 return;
858 }
ef79bbde
P		 859 if (p2 <= p1 && p2 + a2 > p1) {
860 a2++; // BUG: copy one more byte here
861 p1 += a2;
862 p2 += a2;
5ec7acdf 863 while ((s32)a2-- > 0) *--p1 = *--p2;
ef79bbde 864 } else {
5ec7acdf 865 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde 866 }
112dddf5 867 pc0 = ra;
ef79bbde
P		 868}
869
870void psxBios_memcmp() { // 0x2d
871 psxBios_bcmp();
872}
873
874void psxBios_memchr() { // 0x2e
875 char *p = (char *)Ra0;
876
5ec7acdf 877 while ((s32)a2-- > 0) {
ef79bbde
P		 878 if (*p++ != (s8)a1) continue;
879 v0 = a0 + (p - (char *)Ra0 - 1);
880 pc0 = ra;
881 return;
882 }
883
884 v0 = 0; pc0 = ra;
885}
886
887void psxBios_rand() { // 0x2f
888 u32 s = psxMu32(0x9010) * 1103515245 + 12345;
889 v0 = (s >> 16) & 0x7fff;
890 psxMu32ref(0x9010) = SWAPu32(s);
891 pc0 = ra;
892}
893
894void psxBios_srand() { // 0x30
895 psxMu32ref(0x9010) = SWAPu32(a0);
896 pc0 = ra;
897}
898
899static u32 qscmpfunc, qswidth;
900
901static inline int qscmp(char *a, char *b) {
902 u32 sa0 = a0;
903
904 a0 = sa0 + (a - (char *)PSXM(sa0));
905 a1 = sa0 + (b - (char *)PSXM(sa0));
906
907 softCall2(qscmpfunc);
908
909 a0 = sa0;
910 return (s32)v0;
911}
912
913static inline void qexchange(char *i, char *j) {
914 char t;
915 int n = qswidth;
916
917 do {
918 t = *i;
919 *i++ = *j;
920 *j++ = t;
921 } while (--n);
922}
923
924static inline void q3exchange(char *i, char *j, char *k) {
925 char t;
926 int n = qswidth;
927
928 do {
929 t = *i;
930 *i++ = *k;
931 *k++ = *j;
932 *j++ = t;
933 } while (--n);
934}
935
936static void qsort_main(char *a, char *l) {
937 char *i, *j, *lp, *hp;
938 int c;
939 unsigned int n;
940
941start:
942 if ((n = l - a) <= qswidth)
943 return;
944 n = qswidth * (n / (2 * qswidth));
945 hp = lp = a + n;
946 i = a;
947 j = l - qswidth;
948 while (TRUE) {
949 if (i < lp) {
950 if ((c = qscmp(i, lp)) == 0) {
951 qexchange(i, lp -= qswidth);
952 continue;
953 }
954 if (c < 0) {
955 i += qswidth;
956 continue;
957 }
958 }
959
960loop:
961 if (j > hp) {
962 if ((c = qscmp(hp, j)) == 0) {
963 qexchange(hp += qswidth, j);
964 goto loop;
965 }
966 if (c > 0) {
967 if (i == lp) {
968 q3exchange(i, hp += qswidth, j);
969 i = lp += qswidth;
970 goto loop;
971 }
972 qexchange(i, j);
973 j -= qswidth;
974 i += qswidth;
975 continue;
976 }
977 j -= qswidth;
978 goto loop;
979 }
980
981 if (i == lp) {
982 if (lp - a >= l - hp) {
983 qsort_main(hp + qswidth, l);
984 l = lp;
985 } else {
986 qsort_main(a, lp);
987 a = hp + qswidth;
988 }
989 goto start;
990 }
991
992 q3exchange(j, lp -= qswidth, i);
993 j = hp -= qswidth;
994 }
995}
996
997void psxBios_qsort() { // 0x31
998 qswidth = a2;
999 qscmpfunc = a3;
1000 qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
1001
1002 pc0 = ra;
1003}
1004
1005void psxBios_malloc() { // 0x33
808a13bd 1006 unsigned int *chunk, *newchunk = NULL;
1007 unsigned int dsize = 0, csize, cstat;
ef79bbde
P		 1008 int colflag;
1009#ifdef PSXBIOS_LOG
1010 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
1011#endif
26b964b5 1012 if (!a0 || (!heap_size || !heap_addr)) {
1013 v0 = 0;
1014 pc0 = ra;
1015 return;
1016 }
ef79bbde
P		 1017
1018 // scan through heap and combine free chunks of space
1019 chunk = heap_addr;
1020 colflag = 0;
1021 while(chunk < heap_end) {
1022 // get size and status of actual chunk
1023 csize = ((u32)*chunk) & 0xfffffffc;
1024 cstat = ((u32)*chunk) & 1;
1025
26b964b5 1026 // most probably broken heap descriptor
1027 // this fixes Burning Road
1028 if (*chunk == 0) {
1029 newchunk = chunk;
1030 dsize = ((uptr)heap_end - (uptr)chunk) - 4;
1031 colflag = 1;
1032 break;
1033 }
1034
ef79bbde
P		 1035 // it's a free chunk
1036 if(cstat == 1) {
1037 if(colflag == 0) {
1038 newchunk = chunk;
1039 dsize = csize;
1040 colflag = 1; // let's begin a new collection of free memory
1041 }
1042 else dsize += (csize+4); // add the new size including header
1043 }
1044 // not a free chunk: did we start a collection ?
1045 else {
1046 if(colflag == 1) { // collection is over
1047 colflag = 0;
1048 *newchunk = SWAP32(dsize | 1);
1049 }
1050 }
1051
1052 // next chunk
1053 chunk = (u32*)((uptr)chunk + csize + 4);
1054 }
1055 // if neccessary free memory on end of heap
1056 if (colflag == 1)
1057 *newchunk = SWAP32(dsize | 1);
1058
1059 chunk = heap_addr;
1060 csize = ((u32)*chunk) & 0xfffffffc;
1061 cstat = ((u32)*chunk) & 1;
1062 dsize = (a0 + 3) & 0xfffffffc;
1063
1064 // exit on uninitialized heap
1065 if (chunk == NULL) {
26b964b5 1066 printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
ef79bbde
P		 1067 v0 = 0;
1068 pc0 = ra;
1069 return;
1070 }
1071
1072 // search an unused chunk that is big enough until the end of the heap
26b964b5 1073 while ((dsize > csize || cstat==0) && chunk < heap_end ) {
ef79bbde 1074 chunk = (u32*)((uptr)chunk + csize + 4);
26b964b5 1075
1076 // catch out of memory
1077 if(chunk >= heap_end) {
1078 printf("malloc %x,%x: Out of memory error!\n",
1079 v0, a0);
1080 v0 = 0; pc0 = ra;
1081 return;
1082 }
1083
ef79bbde
P		 1084 csize = ((u32)*chunk) & 0xfffffffc;
1085 cstat = ((u32)*chunk) & 1;
1086 }
1087
ef79bbde
P		 1088 // allocate memory
1089 if(dsize == csize) {
1090 // chunk has same size
1091 *chunk &= 0xfffffffc;
26b964b5 1092 } else if (dsize > csize) {
1093 v0 = 0; pc0 = ra;
1094 return;
1095 } else {
ef79bbde
P		 1096 // split free chunk
1097 *chunk = SWAP32(dsize);
1098 newchunk = (u32*)((uptr)chunk + dsize + 4);
808a13bd 1099 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
ef79bbde
P		 1100 }
1101
1102 // return pointer to allocated memory
26b964b5 1103 v0 = ((uptr)chunk - (uptr)psxM) + 4;
ef79bbde 1104 v0|= 0x80000000;
26b964b5 1105 //printf ("malloc %x,%x\n", v0, a0);
ef79bbde
P		 1106 pc0 = ra;
1107}
1108
1109void psxBios_free() { // 0x34
1110
1111#ifdef PSXBIOS_LOG
1112 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1113#endif
1114
1115 SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1116
1117 *(u32*)(Ra0-4) |= 1; // set chunk to free
1118 pc0 = ra;
1119}
1120
1121void psxBios_calloc() { // 0x37
02949f79 1122 void *pv0;
ef79bbde
P		 1123#ifdef PSXBIOS_LOG
1124 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1125#endif
1126
1127 a0 = a0 * a1;
1128 psxBios_malloc();
02949f79 1129 pv0 = Rv0;
1130 if (pv0)
1131 memset(pv0, 0, a0);
ef79bbde
P		 1132}
1133
1134void psxBios_realloc() { // 0x38
1135 u32 block = a0;
1136 u32 size = a1;
1137#ifdef PSXBIOS_LOG
1138 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1139#endif
1140
1141 a0 = block;
391b1d5b 1142 /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1143 if (block == 0)
1144 {
1145 psxBios_malloc();
1146 }
1147 /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1148 else if (size == 0)
1149 {
1150 psxBios_free();
1151 }
1152 /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1153 /* Note that it is not quite implemented this way here. */
1154 else
1155 {
1156 psxBios_free();
1157 a0 = size;
1158 psxBios_malloc();
1159 }
ef79bbde
P		 1160}
1161
1162
1163/* InitHeap(void *block , int n) */
1164void psxBios_InitHeap() { // 0x39
1165 unsigned int size;
1166
1167#ifdef PSXBIOS_LOG
1168 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1169#endif
1170
1171 if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1172 else size = a1;
1173
1174 size &= 0xfffffffc;
1175
1176 heap_addr = (u32 *)Ra0;
1177 heap_end = (u32 *)((u8 *)heap_addr + size);
1178 *heap_addr = SWAP32(size | 1);
1179
c979c3ee 1180 SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
ef79bbde
P		 1181
1182 pc0 = ra;
1183}
1184
1185void psxBios_getchar() { //0x3b
1186 v0 = getchar(); pc0 = ra;
1187}
1188
1189void psxBios_printf() { // 0x3f
1190 char tmp[1024];
1191 char tmp2[1024];
1192 u32 save[4];
1193 char *ptmp = tmp;
1194 int n=1, i=0, j;
02949f79 1195 void *psp;
1196
1197 psp = PSXM(sp);
1198 if (psp) {
1199 memcpy(save, psp, 4 * 4);
1200 psxMu32ref(sp) = SWAP32((u32)a0);
1201 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1202 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1203 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1204 }
ef79bbde
P		 1205
1206 while (Ra0[i]) {
1207 switch (Ra0[i]) {
1208 case '%':
1209 j = 0;
1210 tmp2[j++] = '%';
1211_start:
1212 switch (Ra0[++i]) {
1213 case '.':
1214 case 'l':
1215 tmp2[j++] = Ra0[i]; goto _start;
1216 default:
1217 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1218 tmp2[j++] = Ra0[i];
1219 goto _start;
1220 }
1221 break;
1222 }
1223 tmp2[j++] = Ra0[i];
1224 tmp2[j] = 0;
1225
1226 switch (Ra0[i]) {
1227 case 'f': case 'F':
1228 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1229 case 'a': case 'A':
1230 case 'e': case 'E':
1231 case 'g': case 'G':
1232 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1233 case 'p':
888468ff 1234 case 'i': case 'u':
ef79bbde
P		 1235 case 'd': case 'D':
1236 case 'o': case 'O':
1237 case 'x': case 'X':
1238 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1239 case 'c':
1240 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1241 case 's':
1242 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1243 case '%':
1244 *ptmp++ = Ra0[i]; break;
1245 }
1246 i++;
1247 break;
1248 default:
1249 *ptmp++ = Ra0[i++];
1250 }
1251 }
1252 *ptmp = 0;
1253
02949f79 1254 if (psp)
1255 memcpy(psp, save, 4 * 4);
ef79bbde 1256
808a13bd 1257 SysPrintf("%s", tmp);
ef79bbde
P		 1258
1259 pc0 = ra;
1260}
1261
e7e1f572 1262void psxBios_format() { // 0x41
1263 if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1264 {
1265 CreateMcd(Config.Mcd1);
1266 LoadMcd(1, Config.Mcd1);
1267 v0 = 1;
1268 }
1269 else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1270 {
1271 CreateMcd(Config.Mcd2);
1272 LoadMcd(2, Config.Mcd2);
1273 v0 = 1;
1274 }
1275 else
1276 {
1277 v0 = 0;
1278 }
1279 pc0 = ra;
1280}
1281
ef79bbde
P		 1282/*
1283 * long Load(char *name, struct EXEC *header);
1284 */
1285
1286void psxBios_Load() { // 0x42
1287 EXE_HEADER eheader;
02949f79 1288 void *pa1;
ef79bbde
P		 1289
1290#ifdef PSXBIOS_LOG
1291 PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1292#endif
1293
02949f79 1294 pa1 = Ra1;
1295 if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1296 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
ef79bbde
P		 1297 v0 = 1;
1298 } else v0 = 0;
1299
1300 pc0 = ra;
1301}
1302
1303/*
1304 * int Exec(struct EXEC *header , int argc , char **argv);
1305 */
1306
1307void psxBios_Exec() { // 43
1308 EXEC *header = (EXEC*)Ra0;
1309 u32 tmp;
1310
1311#ifdef PSXBIOS_LOG
1312 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1313#endif
1314
1315 header->_sp = sp;
1316 header->_fp = fp;
1317 header->_sp = sp;
1318 header->_gp = gp;
1319 header->ret = ra;
1320 header->base = s0;
1321
1322 if (header->S_addr != 0) {
1323 tmp = header->S_addr + header->s_size;
1324 sp = tmp;
1325 fp = sp;
1326 }
1327
1328 gp = header->gp0;
1329
1330 s0 = a0;
1331
1332 a0 = a1;
1333 a1 = a2;
1334
1335 ra = 0x8000;
1336 pc0 = header->_pc0;
1337}
1338
1339void psxBios_FlushCache() { // 44
1340#ifdef PSXBIOS_LOG
1341 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1342#endif
1343
1344 pc0 = ra;
1345}
1346
1347void psxBios_GPU_dw() { // 0x46
1348 int size;
1349 s32 *ptr;
1350
1351#ifdef PSXBIOS_LOG
1352 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1353#endif
1354
1355 GPU_writeData(0xa0000000);
1356 GPU_writeData((a1<<16)|(a0&0xffff));
1357 GPU_writeData((a3<<16)|(a2&0xffff));
1358 size = (a2*a3+1)/2;
1359 ptr = (s32*)PSXM(Rsp[4]); //that is correct?
1360 do {
1361 GPU_writeData(SWAP32(*ptr));
1362 ptr++;
1363 } while(--size);
1364
1365 pc0 = ra;
1366}
1367
1368void psxBios_mem2vram() { // 0x47
1369 int size;
1370
1371 GPU_writeData(0xa0000000);
1372 GPU_writeData((a1<<16)|(a0&0xffff));
1373 GPU_writeData((a3<<16)|(a2&0xffff));
1374 size = (a2*a3+1)/2;
1375 GPU_writeStatus(0x04000002);
1376 psxHwWrite32(0x1f8010f4,0);
1377 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1378 psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1379 psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1380 psxHwWrite32(0x1f8010a8,0x01000201);
1381
1382 pc0 = ra;
1383}
1384
1385void psxBios_SendGPU() { // 0x48
1386 GPU_writeStatus(a0);
ddbaf678 1387 gpuSyncPluginSR();
ef79bbde
P		 1388 pc0 = ra;
1389}
1390
1391void psxBios_GPU_cw() { // 0x49
1392 GPU_writeData(a0);
1393 pc0 = ra;
1394}
1395
1396void psxBios_GPU_cwb() { // 0x4a
1397 s32 *ptr = (s32*)Ra0;
1398 int size = a1;
1399 while(size--) {
1400 GPU_writeData(SWAP32(*ptr));
1401 ptr++;
1402 }
1403
1404 pc0 = ra;
1405}
1406
1407void psxBios_GPU_SendPackets() { //4b:
1408 GPU_writeStatus(0x04000002);
1409 psxHwWrite32(0x1f8010f4,0);
1410 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1411 psxHwWrite32(0x1f8010a0,a0);
1412 psxHwWrite32(0x1f8010a4,0);
1413 psxHwWrite32(0x1f8010a8,0x010000401);
1414 pc0 = ra;
1415}
1416
1417void psxBios_sys_a0_4c() { // 0x4c GPU relate
1418 psxHwWrite32(0x1f8010a8,0x00000401);
1419 GPU_writeData(0x0400000);
1420 GPU_writeData(0x0200000);
1421 GPU_writeData(0x0100000);
cd1ea245 1422 v0 = 0x1f801814;
ef79bbde
P		 1423 pc0 = ra;
1424}
1425
1426void psxBios_GPU_GetGPUStatus() { // 0x4d
1427 v0 = GPU_readStatus();
1428 pc0 = ra;
1429}
1430
1431#undef s_addr
1432
1433void psxBios_LoadExec() { // 51
1434 EXEC *header = (EXEC*)PSXM(0xf000);
1435 u32 s_addr, s_size;
1436
1437#ifdef PSXBIOS_LOG
1438 PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1439#endif
1440 s_addr = a1; s_size = a2;
1441
1442 a1 = 0xf000;
1443 psxBios_Load();
1444
1445 header->S_addr = s_addr;
1446 header->s_size = s_size;
1447
1448 a0 = 0xf000; a1 = 0; a2 = 0;
1449 psxBios_Exec();
1450}
1451
1452void psxBios__bu_init() { // 70
1453#ifdef PSXBIOS_LOG
1454 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1455#endif
1456
1457 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1458 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1459
1460 pc0 = ra;
1461}
1462
1463void psxBios__96_init() { // 71
1464#ifdef PSXBIOS_LOG
1465 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1466#endif
1467
1468 pc0 = ra;
1469}
1470
1471void psxBios__96_remove() { // 72
1472#ifdef PSXBIOS_LOG
1473 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1474#endif
1475
1476 pc0 = ra;
1477}
1478
1479void psxBios_SetMem() { // 9f
1480 u32 new = psxHu32(0x1060);
1481
1482#ifdef PSXBIOS_LOG
1483 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1484#endif
1485
1486 switch(a0) {
1487 case 2:
1488 psxHu32ref(0x1060) = SWAP32(new);
1489 psxMu32ref(0x060) = a0;
1490 SysPrintf("Change effective memory : %d MBytes\n",a0);
1491 break;
1492
1493 case 8:
1494 psxHu32ref(0x1060) = SWAP32(new | 0x300);
1495 psxMu32ref(0x060) = a0;
1496 SysPrintf("Change effective memory : %d MBytes\n",a0);
1497
1498 default:
1499 SysPrintf("Effective memory must be 2/8 MBytes\n");
1500 break;
1501 }
1502
1503 pc0 = ra;
1504}
1505
1506void psxBios__card_info() { // ab
1507#ifdef PSXBIOS_LOG
1508 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1509#endif
76b81516 1510 u32 ret;
e9fda093 1511 card_active_chan = a0;
1512
76b81516 1513 switch (card_active_chan)
1514 {
1515 case 0x00: case 0x01: case 0x02: case 0x03:
1516 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1517 break;
1518 case 0x10: case 0x11: case 0x12: case 0x13:
1519 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1520 break;
1521 default:
1522#ifdef PSXBIOS_LOG
1523 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1524#endif
1525 ret = 0x11;
1526 break;
1527 }
1528
1529// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
ef79bbde
P		 1530// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1531 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
76b81516 1532 DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
ef79bbde
P		 1533
1534 v0 = 1; pc0 = ra;
1535}
1536
1537void psxBios__card_load() { // ac
1538#ifdef PSXBIOS_LOG
1539 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1540#endif
1541
e9fda093 1542 card_active_chan = a0;
1543
ef79bbde
P		 1544// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1545 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1546
1547 v0 = 1; pc0 = ra;
1548}
1549
1550/* System calls B0 */
1551
1552void psxBios_SetRCnt() { // 02
1553#ifdef PSXBIOS_LOG
1554 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1555#endif
1556
1557 a0&= 0x3;
1558 if (a0 != 3) {
1559 u32 mode=0;
1560
1561 psxRcntWtarget(a0, a1);
1562 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1563 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1564 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1565 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1566 else { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1567
1568 psxRcntWmode(a0, mode);
1569 }
1570 pc0 = ra;
1571}
1572
1573void psxBios_GetRCnt() { // 03
1574#ifdef PSXBIOS_LOG
1575 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1576#endif
1577
1578 a0&= 0x3;
1579 if (a0 != 3) v0 = psxRcntRcount(a0);
1580 else v0 = 0;
1581 pc0 = ra;
1582}
1583
1584void psxBios_StartRCnt() { // 04
1585#ifdef PSXBIOS_LOG
1586 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1587#endif
1588
1589 a0&= 0x3;
1590 if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1591 else psxHu32ref(0x1074)|= SWAPu32(0x1);
1592 v0 = 1; pc0 = ra;
1593}
1594
1595void psxBios_StopRCnt() { // 05
1596#ifdef PSXBIOS_LOG
1597 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1598#endif
1599
1600 a0&= 0x3;
1601 if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1602 else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1603 pc0 = ra;
1604}
1605
1606void psxBios_ResetRCnt() { // 06
1607#ifdef PSXBIOS_LOG
1608 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1609#endif
1610
1611 a0&= 0x3;
1612 if (a0 != 3) {
1613 psxRcntWmode(a0, 0);
1614 psxRcntWtarget(a0, 0);
1615 psxRcntWcount(a0, 0);
1616 }
1617 pc0 = ra;
1618}
1619
1620
1621/* gets ev for use with Event */
1622#define GetEv() \
1623 ev = (a0 >> 24) & 0xf; \
1624 if (ev == 0xf) ev = 0x5; \
1625 ev*= 32; \
1626 ev+= a0&0x1f;
1627
1628/* gets spec for use with Event */
1629#define GetSpec() \
1630 spec = 0; \
1631 switch (a1) { \
1632 case 0x0301: spec = 16; break; \
1633 case 0x0302: spec = 17; break; \
1634 default: \
1635 for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1636 break; \
1637 }
1638
1639void psxBios_DeliverEvent() { // 07
1640 int ev, spec;
1641 int i;
1642
1643 GetEv();
1644 GetSpec();
1645
1646#ifdef PSXBIOS_LOG
1647 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1648#endif
1649
1650 DeliverEvent(ev, spec);
1651
1652 pc0 = ra;
1653}
1654
1655void psxBios_OpenEvent() { // 08
1656 int ev, spec;
1657 int i;
1658
1659 GetEv();
1660 GetSpec();
1661
1662#ifdef PSXBIOS_LOG
1663 PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1664#endif
1665
1666 Event[ev][spec].status = EvStWAIT;
1667 Event[ev][spec].mode = a2;
1668 Event[ev][spec].fhandler = a3;
1669
1670 v0 = ev | (spec << 8);
1671 pc0 = ra;
1672}
1673
1674void psxBios_CloseEvent() { // 09
1675 int ev, spec;
1676
1677 ev = a0 & 0xff;
1678 spec = (a0 >> 8) & 0xff;
1679
1680#ifdef PSXBIOS_LOG
1681 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1682#endif
1683
1684 Event[ev][spec].status = EvStUNUSED;
1685
1686 v0 = 1; pc0 = ra;
1687}
1688
1689void psxBios_WaitEvent() { // 0a
1690 int ev, spec;
1691
1692 ev = a0 & 0xff;
1693 spec = (a0 >> 8) & 0xff;
ef79bbde
P		 1694#ifdef PSXBIOS_LOG
1695 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1696#endif
d95c9dcb 1697 if (Event[ev][spec].status == EvStUNUSED)
1698 {
1699 v0 = 0;
1700 pc0 = ra;
1701 return;
1702 }
ef79bbde 1703
d95c9dcb 1704 if (Event[ev][spec].status == EvStALREADY)
1705 {
1706 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1707 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1708 v0 = 1;
1709 pc0 = ra;
1710 return;
1711 }
ef79bbde 1712
d95c9dcb 1713 v0 = 0;
1714 pc0 = ra;
ef79bbde
P		 1715}
1716
1717void psxBios_TestEvent() { // 0b
1718 int ev, spec;
1719
1720 ev = a0 & 0xff;
1721 spec = (a0 >> 8) & 0xff;
1722
1723 if (Event[ev][spec].status == EvStALREADY) {
1724 Event[ev][spec].status = EvStACTIVE; v0 = 1;
1725 } else v0 = 0;
1726
1727#ifdef PSXBIOS_LOG
1728 PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1729#endif
1730
1731 pc0 = ra;
1732}
1733
1734void psxBios_EnableEvent() { // 0c
1735 int ev, spec;
1736
1737 ev = a0 & 0xff;
1738 spec = (a0 >> 8) & 0xff;
1739
1740#ifdef PSXBIOS_LOG
1741 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1742#endif
1743
1744 Event[ev][spec].status = EvStACTIVE;
1745
1746 v0 = 1; pc0 = ra;
1747}
1748
1749void psxBios_DisableEvent() { // 0d
1750 int ev, spec;
1751
1752 ev = a0 & 0xff;
1753 spec = (a0 >> 8) & 0xff;
1754
1755#ifdef PSXBIOS_LOG
1756 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1757#endif
1758
1759 Event[ev][spec].status = EvStWAIT;
1760
1761 v0 = 1; pc0 = ra;
1762}
1763
1764/*
1765 * long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1766 */
1767
1768void psxBios_OpenTh() { // 0e
1769 int th;
1770
1771 for (th=1; th<8; th++)
a66d3058 1772 {
ef79bbde
P		 1773 if (Thread[th].status == 0) break;
1774
a66d3058 1775 }
1776 if (th == 8) {
1777 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1778 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1779#ifdef PSXBIOS_LOG
1780 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1781#endif
1782 v0 = 0xffffffff;
1783 pc0 = ra;
1784 return;
1785 }
ef79bbde
P		 1786#ifdef PSXBIOS_LOG
1787 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1788#endif
1789
1790 Thread[th].status = 1;
1791 Thread[th].func = a0;
1792 Thread[th].reg[29] = a1;
1793 Thread[th].reg[28] = a2;
1794
1795 v0 = th; pc0 = ra;
1796}
1797
1798/*
1799 * int CloseTh(long thread);
1800 */
1801
1802void psxBios_CloseTh() { // 0f
1803 int th = a0 & 0xff;
1804
1805#ifdef PSXBIOS_LOG
1806 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1807#endif
1808
1809 if (Thread[th].status == 0) {
1810 v0 = 0;
1811 } else {
1812 Thread[th].status = 0;
1813 v0 = 1;
1814 }
1815
1816 pc0 = ra;
1817}
1818
1819/*
1820 * int ChangeTh(long thread);
1821 */
1822
1823void psxBios_ChangeTh() { // 10
1824 int th = a0 & 0xff;
1825
1826#ifdef PSXBIOS_LOG
1827// PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1828#endif
1829
1830 if (Thread[th].status == 0 || CurThread == th) {
1831 v0 = 0;
1832
1833 pc0 = ra;
1834 } else {
1835 v0 = 1;
1836
1837 if (Thread[CurThread].status == 2) {
1838 Thread[CurThread].status = 1;
1839 Thread[CurThread].func = ra;
1840 memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1841 }
1842
1843 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1844 pc0 = Thread[th].func;
1845 Thread[th].status = 2;
1846 CurThread = th;
1847 }
1848}
1849
1850void psxBios_InitPAD() { // 0x12
1851#ifdef PSXBIOS_LOG
1852 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1853#endif
1854
1855 pad_buf1 = (char*)Ra0;
1856 pad_buf1len = a1;
1857 pad_buf2 = (char*)Ra2;
1858 pad_buf2len = a3;
1859
1860 v0 = 1; pc0 = ra;
1861}
1862
1863void psxBios_StartPAD() { // 13
1864#ifdef PSXBIOS_LOG
1865 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1866#endif
1867
1868 psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1869 psxRegs.CP0.n.Status |= 0x401;
1870 pc0 = ra;
1871}
1872
1873void psxBios_StopPAD() { // 14
1874#ifdef PSXBIOS_LOG
1875 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1876#endif
8a0245bb 1877 if (pad_buf == 0){
ef79bbde
P		 1878 pad_buf1 = NULL;
1879 pad_buf2 = NULL;
8a0245bb 1880 }
ef79bbde
P		 1881 pc0 = ra;
1882}
1883
1884void psxBios_PAD_init() { // 15
1885#ifdef PSXBIOS_LOG
1886 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1887#endif
a824e83d 1888 if (!(a0 == 0x20000000 || a0 == 0x20000001))
1889 {
1890 v0 = 0;
1891 pc0 = ra;
1892 return;
1893 }
ef79bbde
P		 1894 psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1895 pad_buf = (int *)Ra1;
1896 *pad_buf = -1;
1897 psxRegs.CP0.n.Status |= 0x401;
a824e83d 1898 v0 = 2;
ef79bbde
P		 1899 pc0 = ra;
1900}
1901
1902void psxBios_PAD_dr() { // 16
1903#ifdef PSXBIOS_LOG
1904 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1905#endif
1906
1907 v0 = -1; pc0 = ra;
1908}
1909
1910void psxBios_ReturnFromException() { // 17
1911 LoadRegs();
1912
1913 pc0 = psxRegs.CP0.n.EPC;
1914 if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1915
1916 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1917 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1918}
1919
1920void psxBios_ResetEntryInt() { // 18
1921#ifdef PSXBIOS_LOG
1922 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1923#endif
1924
1925 jmp_int = NULL;
1926 pc0 = ra;
1927}
1928
1929void psxBios_HookEntryInt() { // 19
1930#ifdef PSXBIOS_LOG
1931 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1932#endif
1933
1934 jmp_int = (u32*)Ra0;
1935 pc0 = ra;
1936}
1937
1938void psxBios_UnDeliverEvent() { // 0x20
1939 int ev, spec;
1940 int i;
1941
1942 GetEv();
1943 GetSpec();
1944
1945#ifdef PSXBIOS_LOG
1946 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1947#endif
1948
1949 if (Event[ev][spec].status == EvStALREADY &&
1950 Event[ev][spec].mode == EvMdNOINTR)
1951 Event[ev][spec].status = EvStACTIVE;
1952
1953 pc0 = ra;
1954}
1955
595a136b 1956char ffile[64], *pfile;
1957int nfile;
1958static void buopen(int mcd, u8 *ptr, u8 *cfg)
1959{
1960 int i;
1961 u8 *fptr = ptr;
1962
1963 strcpy(FDesc[1 + mcd].name, Ra0+5);
1964 FDesc[1 + mcd].offset = 0;
1965 FDesc[1 + mcd].mode = a1;
1966
1967 for (i=1; i<16; i++) {
1968 fptr += 128;
1969 if ((*fptr & 0xF0) != 0x50) continue;
1970 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
1971 FDesc[1 + mcd].mcfile = i;
1972 SysPrintf("open %s\n", fptr+0xa);
1973 v0 = 1 + mcd;
1974 break;
1975 }
1976 if (a1 & 0x200 && v0 == -1) { /* FCREAT */
1977 fptr = ptr;
1978 for (i=1; i<16; i++) {
1979 int j, xor, nblk = a1 >> 16;
1980 u8 *pptr, *fptr2;
1981
1982 fptr += 128;
1983 if ((*fptr & 0xF0) != 0xa0) continue;
1984
1985 FDesc[1 + mcd].mcfile = i;
1986 fptr[0] = 0x51;
1987 fptr[4] = 0x00;
1988 fptr[5] = 0x20 * nblk;
1989 fptr[6] = 0x00;
1990 fptr[7] = 0x00;
1991 strcpy(fptr+0xa, FDesc[1 + mcd].name);
1992 pptr = fptr2 = fptr;
1993 for(j=2; j<=nblk; j++) {
1994 int k;
1995 for(i++; i<16; i++) {
1996 fptr2 += 128;
1997
1998 memset(fptr2, 0, 128);
1999 fptr2[0] = j < nblk ? 0x52 : 0x53;
2000 pptr[8] = i - 1;
2001 pptr[9] = 0;
2002 for (k=0, xor=0; k<127; k++) xor^= pptr[k];
2003 pptr[127] = xor;
2004 pptr = fptr2;
2005 break;
2006 }
2007 /* shouldn't this return ENOSPC if i == 16? */
2008 }
2009 pptr[8] = pptr[9] = 0xff;
2010 for (j=0, xor=0; j<127; j++) xor^= pptr[j];
2011 pptr[127] = xor;
2012 SysPrintf("openC %s %d\n", ptr, nblk);
2013 v0 = 1 + mcd;
2014 /* just go ahead and resave them all */
2015 SaveMcd(cfg, ptr, 128, 128 * 15);
2016 break;
2017 }
2018 /* shouldn't this return ENOSPC if i == 16? */
2019 }
ef79bbde
P		 2020}
2021
2022/*
2023 * int open(char *name , int mode);
2024 */
2025
2026void psxBios_open() { // 0x32
2027 int i;
2028 char *ptr;
02949f79 2029 void *pa0 = Ra0;
ef79bbde
P		 2030
2031#ifdef PSXBIOS_LOG
2032 PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
2033#endif
2034
2035 v0 = -1;
2036
02949f79 2037 if (pa0) {
2038 if (!strncmp(pa0, "bu00", 4)) {
595a136b 2039 buopen(1, Mcd1Data, Config.Mcd1);
02949f79 2040 }
ef79bbde 2041
02949f79 2042 if (!strncmp(pa0, "bu10", 4)) {
595a136b 2043 buopen(2, Mcd2Data, Config.Mcd2);
02949f79 2044 }
ef79bbde
P		 2045 }
2046
2047 pc0 = ra;
2048}
2049
2050/*
2051 * int lseek(int fd , int offset , int whence);
2052 */
2053
2054void psxBios_lseek() { // 0x33
2055#ifdef PSXBIOS_LOG
2056 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2057#endif
2058
2059 switch (a2) {
2060 case 0: // SEEK_SET
2061 FDesc[a0].offset = a1;
2062 v0 = a1;
2063// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2064// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2065 break;
2066
2067 case 1: // SEEK_CUR
2068 FDesc[a0].offset+= a1;
2069 v0 = FDesc[a0].offset;
2070 break;
2071 }
2072
2073 pc0 = ra;
2074}
2075
595a136b 2076
ef79bbde
P		 2077/*
2078 * int read(int fd , void *buf , int nbytes);
2079 */
2080
2081void psxBios_read() { // 0x34
2082 char *ptr;
02949f79 2083 void *pa1 = Ra1;
ef79bbde
P		 2084
2085#ifdef PSXBIOS_LOG
2086 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2087#endif
2088
2089 v0 = -1;
2090
02949f79 2091 if (pa1) {
2092 switch (a0) {
595a136b 2093 case 2: buread(pa1, 1, a2); break;
2094 case 3: buread(pa1, 2, a2); break;
02949f79 2095 }
ef79bbde
P		 2096 }
2097
2098 pc0 = ra;
2099}
2100
ef79bbde
P		 2101/*
2102 * int write(int fd , void *buf , int nbytes);
2103 */
2104
2105void psxBios_write() { // 0x35/0x03
2106 char *ptr;
02949f79 2107 void *pa1 = Ra1;
2108
2109#ifdef PSXBIOS_LOG
2110 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2111#endif
2112
2113 v0 = -1;
2114 if (!pa1) {
2115 pc0 = ra;
2116 return;
2117 }
ef79bbde
P		 2118
2119 if (a0 == 1) { // stdout
02949f79 2120 char *ptr = pa1;
ef79bbde 2121
02949f79 2122 v0 = a2;
ef79bbde
P		 2123 while (a2 > 0) {
2124 SysPrintf("%c", *ptr++); a2--;
2125 }
2126 pc0 = ra; return;
2127 }
ef79bbde
P		 2128
2129 switch (a0) {
595a136b 2130 case 2: buwrite(pa1, 1, a2); break;
2131 case 3: buwrite(pa1, 2, a2); break;
ef79bbde
P		 2132 }
2133
2134 pc0 = ra;
2135}
2136
2137/*
2138 * int close(int fd);
2139 */
2140
2141void psxBios_close() { // 0x36
2142#ifdef PSXBIOS_LOG
2143 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2144#endif
2145
2146 v0 = a0;
2147 pc0 = ra;
2148}
2149
2150void psxBios_putchar() { // 3d
2151 SysPrintf("%c", (char)a0);
2152 pc0 = ra;
2153}
2154
2155void psxBios_puts() { // 3e/3f
808a13bd 2156 SysPrintf("%s", Ra0);
ef79bbde
P		 2157 pc0 = ra;
2158}
2159
2160char ffile[64], *pfile;
2161int nfile;
2162
2163#define bufile(mcd) { \
2164 while (nfile < 16) { \
2165 int match=1; \
2166 \
595a136b 2167 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
ef79bbde
P		 2168 nfile++; \
2169 if ((*ptr & 0xF0) != 0x50) continue; \
595a136b 2170 /* Bug link files show up as free block. */ \
2171 if (!ptr[0xa]) continue; \
ef79bbde
P		 2172 ptr+= 0xa; \
2173 if (pfile[0] == 0) { \
507d7c1d 2174 strncpy(dir->name, ptr, sizeof(dir->name)); \
2175 dir->name[sizeof(dir->name) - 1] = '\0'; \
ef79bbde
P		 2176 } else for (i=0; i<20; i++) { \
2177 if (pfile[i] == ptr[i]) { \
595a136b 2178 dir->name[i] = ptr[i]; continue; } \
ef79bbde
P		 2179 if (pfile[i] == '?') { \
2180 dir->name[i] = ptr[i]; continue; } \
2181 if (pfile[i] == '*') { \
2182 strcpy(dir->name+i, ptr+i); break; } \
2183 match = 0; break; \
2184 } \
2185 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
595a136b 2186 if (match == 0) { continue; } \
ef79bbde
P		 2187 dir->size = 8192; \
2188 v0 = _dir; \
2189 break; \
2190 } \
2191}
2192
2193/*
2194 * struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2195 */
2196
2197void psxBios_firstfile() { // 42
2198 struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
02949f79 2199 void *pa0 = Ra0;
ef79bbde
P		 2200 u32 _dir = a1;
2201 char *ptr;
2202 int i;
2203
2204#ifdef PSXBIOS_LOG
2205 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2206#endif
2207
2208 v0 = 0;
2209
02949f79 2210 if (pa0) {
2211 strcpy(ffile, pa0);
2212 pfile = ffile+5;
2213 nfile = 1;
2214 if (!strncmp(pa0, "bu00", 4)) {
857fabea 2215 // firstfile() calls _card_read() internally, so deliver it's event
2216 DeliverEvent(0x11, 0x2);
02949f79 2217 bufile(1);
2218 } else if (!strncmp(pa0, "bu10", 4)) {
857fabea 2219 // firstfile() calls _card_read() internally, so deliver it's event
2220 DeliverEvent(0x11, 0x2);
02949f79 2221 bufile(2);
2222 }
ef79bbde
P		 2223 }
2224
2225 pc0 = ra;
2226}
2227
2228/*
2229 * struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2230 */
2231
2232void psxBios_nextfile() { // 43
2233 struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2234 u32 _dir = a0;
2235 char *ptr;
2236 int i;
2237
2238#ifdef PSXBIOS_LOG
2239 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2240#endif
2241
2242 v0 = 0;
2243
2244 if (!strncmp(ffile, "bu00", 4)) {
2245 bufile(1);
2246 }
2247
2248 if (!strncmp(ffile, "bu10", 4)) {
2249 bufile(2);
2250 }
2251
2252 pc0 = ra;
2253}
2254
2255#define burename(mcd) { \
2256 for (i=1; i<16; i++) { \
2257 int namelen, j, xor = 0; \
2258 ptr = Mcd##mcd##Data + 128 * i; \
2259 if ((*ptr & 0xF0) != 0x50) continue; \
2260 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2261 namelen = strlen(Ra1+5); \
2262 memcpy(ptr+0xa, Ra1+5, namelen); \
2263 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2264 for (j=0; j<127; j++) xor^= ptr[j]; \
2265 ptr[127] = xor; \
2266 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2267 v0 = 1; \
2268 break; \
2269 } \
2270}
2271
2272/*
2273 * int rename(char *old, char *new);
2274 */
2275
2276void psxBios_rename() { // 44
02949f79 2277 void *pa0 = Ra0;
2278 void *pa1 = Ra1;
ef79bbde
P		 2279 char *ptr;
2280 int i;
2281
2282#ifdef PSXBIOS_LOG
2283 PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2284#endif
2285
2286 v0 = 0;
2287
02949f79 2288 if (pa0 && pa1) {
2289 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2290 burename(1);
2291 }
ef79bbde 2292
02949f79 2293 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2294 burename(2);
2295 }
ef79bbde
P		 2296 }
2297
2298 pc0 = ra;
2299}
2300
2301
2302#define budelete(mcd) { \
2303 for (i=1; i<16; i++) { \
2304 ptr = Mcd##mcd##Data + 128 * i; \
2305 if ((*ptr & 0xF0) != 0x50) continue; \
2306 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2307 *ptr = (*ptr & 0xf) | 0xA0; \
2308 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2309 SysPrintf("delete %s\n", ptr+0xa); \
2310 v0 = 1; \
2311 break; \
2312 } \
2313}
2314
2315/*
2316 * int delete(char *name);
2317 */
2318
2319void psxBios_delete() { // 45
02949f79 2320 void *pa0 = Ra0;
ef79bbde
P		 2321 char *ptr;
2322 int i;
2323
2324#ifdef PSXBIOS_LOG
2325 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2326#endif
2327
2328 v0 = 0;
2329
02949f79 2330 if (pa0) {
2331 if (!strncmp(pa0, "bu00", 4)) {
2332 budelete(1);
2333 }
ef79bbde 2334
02949f79 2335 if (!strncmp(pa0, "bu10", 4)) {
2336 budelete(2);
2337 }
ef79bbde
P		 2338 }
2339
2340 pc0 = ra;
2341}
2342
2343void psxBios_InitCARD() { // 4a
2344#ifdef PSXBIOS_LOG
2345 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2346#endif
2347
2348 CardState = 0;
2349
2350 pc0 = ra;
2351}
2352
2353void psxBios_StartCARD() { // 4b
2354#ifdef PSXBIOS_LOG
2355 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2356#endif
2357
2358 if (CardState == 0) CardState = 1;
2359
2360 pc0 = ra;
2361}
2362
2363void psxBios_StopCARD() { // 4c
2364#ifdef PSXBIOS_LOG
2365 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2366#endif
2367
2368 if (CardState == 1) CardState = 0;
2369
2370 pc0 = ra;
2371}
2372
2373void psxBios__card_write() { // 0x4e
02949f79 2374 void *pa2 = Ra2;
ef79bbde
P		 2375 int port;
2376
2377#ifdef PSXBIOS_LOG
2378 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2379#endif
bd48ba5e 2380 /* Function also accepts sector 400h (a bug) */
2381 if (!(a1 <= 0x400))
2382 {
2383 /* Invalid sectors */
2384 v0 = 0; pc0 = ra;
2385 return;
2386 }
e9fda093 2387 card_active_chan = a0;
ef79bbde
P		 2388 port = a0 >> 4;
2389
02949f79 2390 if (pa2) {
2391 if (port == 0) {
2392 memcpy(Mcd1Data + a1 * 128, pa2, 128);
2393 SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2394 } else {
2395 memcpy(Mcd2Data + a1 * 128, pa2, 128);
2396 SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2397 }
ef79bbde
P		 2398 }
2399
2400 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2401// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2402
2403 v0 = 1; pc0 = ra;
2404}
2405
2406void psxBios__card_read() { // 0x4f
02949f79 2407 void *pa2 = Ra2;
ef79bbde
P		 2408 int port;
2409
2410#ifdef PSXBIOS_LOG
2411 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2412#endif
bd48ba5e 2413 /* Function also accepts sector 400h (a bug) */
2414 if (!(a1 <= 0x400))
2415 {
2416 /* Invalid sectors */
2417 v0 = 0; pc0 = ra;
2418 return;
2419 }
e9fda093 2420 card_active_chan = a0;
ef79bbde
P		 2421 port = a0 >> 4;
2422
02949f79 2423 if (pa2) {
2424 if (port == 0) {
2425 memcpy(pa2, Mcd1Data + a1 * 128, 128);
2426 } else {
2427 memcpy(pa2, Mcd2Data + a1 * 128, 128);
2428 }
ef79bbde
P		 2429 }
2430
2431 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2432// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2433
2434 v0 = 1; pc0 = ra;
2435}
2436
2437void psxBios__new_card() { // 0x50
2438#ifdef PSXBIOS_LOG
2439 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2440#endif
2441
2442 pc0 = ra;
2443}
2444
002b2f7d 2445/* According to a user, this allows Final Fantasy Tactics to save/load properly */
2446void psxBios__get_error(void) // 55
2447{
2448 v0 = 0;
2449 pc0 = ra;
2450}
2451
ef79bbde
P		 2452void psxBios_Krom2RawAdd() { // 0x51
2453 int i = 0;
2454
2455 const u32 table_8140[][2] = {
2456 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2457 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2458 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2459 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2460 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2461 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2462 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2463 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2464 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2465 {0xffff, 0}
2466 };
2467
2468 const u32 table_889f[][2] = {
2469 {0x889f, 0x3d68}, {0x8900, 0x40ec}, {0x897f, 0x4fb0}, {0x8a00, 0x56f4},
2470 {0x8a7f, 0x65b8}, {0x8b00, 0x6cfc}, {0x8b7f, 0x7bc0}, {0x8c00, 0x8304},
2471 {0x8c7f, 0x91c8}, {0x8d00, 0x990c}, {0x8d7f, 0xa7d0}, {0x8e00, 0xaf14},
2472 {0x8e7f, 0xbdd8}, {0x8f00, 0xc51c}, {0x8f7f, 0xd3e0}, {0x9000, 0xdb24},
2473 {0x907f, 0xe9e8}, {0x9100, 0xf12c}, {0x917f, 0xfff0}, {0x9200, 0x10734},
2474 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2475 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2476 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2477 {0xffff, 0}
2478 };
2479
2480 if (a0 >= 0x8140 && a0 <= 0x84be) {
2481 while (table_8140[i][0] <= a0) i++;
2482 a0 -= table_8140[i - 1][0];
2483 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2484 } else if (a0 >= 0x889f && a0 <= 0x9872) {
2485 while (table_889f[i][0] <= a0) i++;
2486 a0 -= table_889f[i - 1][0];
2487 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2488 } else {
2489 v0 = 0xffffffff;
2490 }
2491
2492 pc0 = ra;
2493}
2494
2495void psxBios_GetC0Table() { // 56
2496#ifdef PSXBIOS_LOG
2497 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2498#endif
2499
2500 v0 = 0x674; pc0 = ra;
2501}
2502
2503void psxBios_GetB0Table() { // 57
2504#ifdef PSXBIOS_LOG
2505 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2506#endif
2507
2508 v0 = 0x874; pc0 = ra;
2509}
2510
e9fda093 2511void psxBios__card_chan() { // 0x58
2512#ifdef PSXBIOS_LOG
2513 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2514#endif
2515
2516 v0 = card_active_chan;
2517 pc0 = ra;
2518}
2519
ef79bbde
P		 2520void psxBios_ChangeClearPad() { // 5b
2521#ifdef PSXBIOS_LOG
2522 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2523#endif
2524
2525 pc0 = ra;
2526}
2527
2528/* System calls C0 */
2529
2530/*
2531 * int SysEnqIntRP(int index , long *queue);
2532 */
2533
2534void psxBios_SysEnqIntRP() { // 02
2535#ifdef PSXBIOS_LOG
2536 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2537#endif
2538
2539 SysIntRP[a0] = a1;
2540
2541 v0 = 0; pc0 = ra;
2542}
2543
2544/*
2545 * int SysDeqIntRP(int index , long *queue);
2546 */
2547
2548void psxBios_SysDeqIntRP() { // 03
2549#ifdef PSXBIOS_LOG
2550 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2551#endif
2552
2553 SysIntRP[a0] = 0;
2554
2555 v0 = 0; pc0 = ra;
2556}
2557
2558void psxBios_ChangeClearRCnt() { // 0a
2559 u32 *ptr;
2560
2561#ifdef PSXBIOS_LOG
2562 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2563#endif
2564
2565 ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2566 v0 = *ptr;
2567 *ptr = a1;
2568
2569// psxRegs.CP0.n.Status|= 0x404;
2570 pc0 = ra;
2571}
2572
2573void psxBios_dummy() {
2574#ifdef PSXBIOS_LOG
2575 PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2576#endif
2577 pc0 = ra;
2578}
2579
2580void (*biosA0[256])();
2581void (*biosB0[256])();
2582void (*biosC0[256])();
2583
2584#include "sjisfont.h"
2585
2586void psxBiosInit() {
2587 u32 base, size;
2588 u32 *ptr;
2589 int i;
2590 uLongf len;
2591
2592 for(i = 0; i < 256; i++) {
2593 biosA0[i] = NULL;
2594 biosB0[i] = NULL;
2595 biosC0[i] = NULL;
2596 }
2597 biosA0[0x3e] = psxBios_puts;
2598 biosA0[0x3f] = psxBios_printf;
2599
2600 biosB0[0x3d] = psxBios_putchar;
2601 biosB0[0x3f] = psxBios_puts;
2602
2603 if (!Config.HLE) return;
2604
2605 for(i = 0; i < 256; i++) {
2606 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2607 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2608 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2609 }
2610
2611 biosA0[0x00] = psxBios_open;
2612 biosA0[0x01] = psxBios_lseek;
2613 biosA0[0x02] = psxBios_read;
2614 biosA0[0x03] = psxBios_write;
2615 biosA0[0x04] = psxBios_close;
2616 //biosA0[0x05] = psxBios_ioctl;
2617 //biosA0[0x06] = psxBios_exit;
2618 //biosA0[0x07] = psxBios_sys_a0_07;
324cec89 2619 biosA0[0x08] = psxBios_getc;
2620 biosA0[0x09] = psxBios_putc;
ba11675c 2621 biosA0[0x0a] = psxBios_todigit;
ef79bbde
P		 2622 //biosA0[0x0b] = psxBios_atof;
2623 //biosA0[0x0c] = psxBios_strtoul;
2624 //biosA0[0x0d] = psxBios_strtol;
2625 biosA0[0x0e] = psxBios_abs;
2626 biosA0[0x0f] = psxBios_labs;
2627 biosA0[0x10] = psxBios_atoi;
2628 biosA0[0x11] = psxBios_atol;
2629 //biosA0[0x12] = psxBios_atob;
2630 biosA0[0x13] = psxBios_setjmp;
2631 biosA0[0x14] = psxBios_longjmp;
2632 biosA0[0x15] = psxBios_strcat;
2633 biosA0[0x16] = psxBios_strncat;
2634 biosA0[0x17] = psxBios_strcmp;
2635 biosA0[0x18] = psxBios_strncmp;
2636 biosA0[0x19] = psxBios_strcpy;
2637 biosA0[0x1a] = psxBios_strncpy;
2638 biosA0[0x1b] = psxBios_strlen;
2639 biosA0[0x1c] = psxBios_index;
2640 biosA0[0x1d] = psxBios_rindex;
2641 biosA0[0x1e] = psxBios_strchr;
2642 biosA0[0x1f] = psxBios_strrchr;
2643 biosA0[0x20] = psxBios_strpbrk;
2644 biosA0[0x21] = psxBios_strspn;
2645 biosA0[0x22] = psxBios_strcspn;
2646 biosA0[0x23] = psxBios_strtok;
2647 biosA0[0x24] = psxBios_strstr;
2648 biosA0[0x25] = psxBios_toupper;
2649 biosA0[0x26] = psxBios_tolower;
2650 biosA0[0x27] = psxBios_bcopy;
2651 biosA0[0x28] = psxBios_bzero;
2652 biosA0[0x29] = psxBios_bcmp;
2653 biosA0[0x2a] = psxBios_memcpy;
2654 biosA0[0x2b] = psxBios_memset;
2655 biosA0[0x2c] = psxBios_memmove;
2656 biosA0[0x2d] = psxBios_memcmp;
2657 biosA0[0x2e] = psxBios_memchr;
2658 biosA0[0x2f] = psxBios_rand;
2659 biosA0[0x30] = psxBios_srand;
2660 biosA0[0x31] = psxBios_qsort;
2661 //biosA0[0x32] = psxBios_strtod;
2662 biosA0[0x33] = psxBios_malloc;
2663 biosA0[0x34] = psxBios_free;
2664 //biosA0[0x35] = psxBios_lsearch;
2665 //biosA0[0x36] = psxBios_bsearch;
2666 biosA0[0x37] = psxBios_calloc;
2667 biosA0[0x38] = psxBios_realloc;
2668 biosA0[0x39] = psxBios_InitHeap;
2669 //biosA0[0x3a] = psxBios__exit;
2670 biosA0[0x3b] = psxBios_getchar;
2671 biosA0[0x3c] = psxBios_putchar;
2672 //biosA0[0x3d] = psxBios_gets;
2673 //biosA0[0x40] = psxBios_sys_a0_40;
2674 //biosA0[0x41] = psxBios_LoadTest;
2675 biosA0[0x42] = psxBios_Load;
2676 biosA0[0x43] = psxBios_Exec;
2677 biosA0[0x44] = psxBios_FlushCache;
2678 //biosA0[0x45] = psxBios_InstallInterruptHandler;
2679 biosA0[0x46] = psxBios_GPU_dw;
2680 biosA0[0x47] = psxBios_mem2vram;
2681 biosA0[0x48] = psxBios_SendGPU;
2682 biosA0[0x49] = psxBios_GPU_cw;
2683 biosA0[0x4a] = psxBios_GPU_cwb;
2684 biosA0[0x4b] = psxBios_GPU_SendPackets;
2685 biosA0[0x4c] = psxBios_sys_a0_4c;
2686 biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2687 //biosA0[0x4e] = psxBios_GPU_sync;
2688 //biosA0[0x4f] = psxBios_sys_a0_4f;
2689 //biosA0[0x50] = psxBios_sys_a0_50;
2690 biosA0[0x51] = psxBios_LoadExec;
2691 //biosA0[0x52] = psxBios_GetSysSp;
2692 //biosA0[0x53] = psxBios_sys_a0_53;
2693 //biosA0[0x54] = psxBios__96_init_a54;
2694 //biosA0[0x55] = psxBios__bu_init_a55;
2695 //biosA0[0x56] = psxBios__96_remove_a56;
2696 //biosA0[0x57] = psxBios_sys_a0_57;
2697 //biosA0[0x58] = psxBios_sys_a0_58;
2698 //biosA0[0x59] = psxBios_sys_a0_59;
2699 //biosA0[0x5a] = psxBios_sys_a0_5a;
2700 //biosA0[0x5b] = psxBios_dev_tty_init;
2701 //biosA0[0x5c] = psxBios_dev_tty_open;
2702 //biosA0[0x5d] = psxBios_sys_a0_5d;
2703 //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2704 //biosA0[0x5f] = psxBios_dev_cd_open;
2705 //biosA0[0x60] = psxBios_dev_cd_read;
2706 //biosA0[0x61] = psxBios_dev_cd_close;
2707 //biosA0[0x62] = psxBios_dev_cd_firstfile;
2708 //biosA0[0x63] = psxBios_dev_cd_nextfile;
2709 //biosA0[0x64] = psxBios_dev_cd_chdir;
2710 //biosA0[0x65] = psxBios_dev_card_open;
2711 //biosA0[0x66] = psxBios_dev_card_read;
2712 //biosA0[0x67] = psxBios_dev_card_write;
2713 //biosA0[0x68] = psxBios_dev_card_close;
2714 //biosA0[0x69] = psxBios_dev_card_firstfile;
2715 //biosA0[0x6a] = psxBios_dev_card_nextfile;
2716 //biosA0[0x6b] = psxBios_dev_card_erase;
2717 //biosA0[0x6c] = psxBios_dev_card_undelete;
2718 //biosA0[0x6d] = psxBios_dev_card_format;
2719 //biosA0[0x6e] = psxBios_dev_card_rename;
2720 //biosA0[0x6f] = psxBios_dev_card_6f;
2721 biosA0[0x70] = psxBios__bu_init;
2722 biosA0[0x71] = psxBios__96_init;
2723 biosA0[0x72] = psxBios__96_remove;
2724 //biosA0[0x73] = psxBios_sys_a0_73;
2725 //biosA0[0x74] = psxBios_sys_a0_74;
2726 //biosA0[0x75] = psxBios_sys_a0_75;
2727 //biosA0[0x76] = psxBios_sys_a0_76;
2728 //biosA0[0x77] = psxBios_sys_a0_77;
2729 //biosA0[0x78] = psxBios__96_CdSeekL;
2730 //biosA0[0x79] = psxBios_sys_a0_79;
2731 //biosA0[0x7a] = psxBios_sys_a0_7a;
2732 //biosA0[0x7b] = psxBios_sys_a0_7b;
2733 //biosA0[0x7c] = psxBios__96_CdGetStatus;
2734 //biosA0[0x7d] = psxBios_sys_a0_7d;
2735 //biosA0[0x7e] = psxBios__96_CdRead;
2736 //biosA0[0x7f] = psxBios_sys_a0_7f;
2737 //biosA0[0x80] = psxBios_sys_a0_80;
2738 //biosA0[0x81] = psxBios_sys_a0_81;
2739 //biosA0[0x82] = psxBios_sys_a0_82;
2740 //biosA0[0x83] = psxBios_sys_a0_83;
2741 //biosA0[0x84] = psxBios_sys_a0_84;
2742 //biosA0[0x85] = psxBios__96_CdStop;
2743 //biosA0[0x86] = psxBios_sys_a0_86;
2744 //biosA0[0x87] = psxBios_sys_a0_87;
2745 //biosA0[0x88] = psxBios_sys_a0_88;
2746 //biosA0[0x89] = psxBios_sys_a0_89;
2747 //biosA0[0x8a] = psxBios_sys_a0_8a;
2748 //biosA0[0x8b] = psxBios_sys_a0_8b;
2749 //biosA0[0x8c] = psxBios_sys_a0_8c;
2750 //biosA0[0x8d] = psxBios_sys_a0_8d;
2751 //biosA0[0x8e] = psxBios_sys_a0_8e;
2752 //biosA0[0x8f] = psxBios_sys_a0_8f;
2753 //biosA0[0x90] = psxBios_sys_a0_90;
2754 //biosA0[0x91] = psxBios_sys_a0_91;
2755 //biosA0[0x92] = psxBios_sys_a0_92;
2756 //biosA0[0x93] = psxBios_sys_a0_93;
2757 //biosA0[0x94] = psxBios_sys_a0_94;
2758 //biosA0[0x95] = psxBios_sys_a0_95;
2759 //biosA0[0x96] = psxBios_AddCDROMDevice;
2760 //biosA0[0x97] = psxBios_AddMemCardDevide;
2761 //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2762 //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2763 //biosA0[0x9a] = psxBios_sys_a0_9a;
2764 //biosA0[0x9b] = psxBios_sys_a0_9b;
2765 //biosA0[0x9c] = psxBios_SetConf;
2766 //biosA0[0x9d] = psxBios_GetConf;
2767 //biosA0[0x9e] = psxBios_sys_a0_9e;
2768 biosA0[0x9f] = psxBios_SetMem;
2769 //biosA0[0xa0] = psxBios__boot;
2770 //biosA0[0xa1] = psxBios_SystemError;
2771 //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2772 //biosA0[0xa3] = psxBios_DequeueCdIntr;
2773 //biosA0[0xa4] = psxBios_sys_a0_a4;
2774 //biosA0[0xa5] = psxBios_ReadSector;
2775 //biosA0[0xa6] = psxBios_get_cd_status;
2776 //biosA0[0xa7] = psxBios_bufs_cb_0;
2777 //biosA0[0xa8] = psxBios_bufs_cb_1;
2778 //biosA0[0xa9] = psxBios_bufs_cb_2;
2779 //biosA0[0xaa] = psxBios_bufs_cb_3;
2780 biosA0[0xab] = psxBios__card_info;
2781 biosA0[0xac] = psxBios__card_load;
2782 //biosA0[0axd] = psxBios__card_auto;
2783 //biosA0[0xae] = psxBios_bufs_cd_4;
2784 //biosA0[0xaf] = psxBios_sys_a0_af;
2785 //biosA0[0xb0] = psxBios_sys_a0_b0;
2786 //biosA0[0xb1] = psxBios_sys_a0_b1;
2787 //biosA0[0xb2] = psxBios_do_a_long_jmp
2788 //biosA0[0xb3] = psxBios_sys_a0_b3;
2789 //biosA0[0xb4] = psxBios_sub_function;
2790//*******************B0 CALLS****************************
2791 //biosB0[0x00] = psxBios_SysMalloc;
2792 //biosB0[0x01] = psxBios_sys_b0_01;
2793 biosB0[0x02] = psxBios_SetRCnt;
2794 biosB0[0x03] = psxBios_GetRCnt;
2795 biosB0[0x04] = psxBios_StartRCnt;
2796 biosB0[0x05] = psxBios_StopRCnt;
2797 biosB0[0x06] = psxBios_ResetRCnt;
2798 biosB0[0x07] = psxBios_DeliverEvent;
2799 biosB0[0x08] = psxBios_OpenEvent;
2800 biosB0[0x09] = psxBios_CloseEvent;
2801 biosB0[0x0a] = psxBios_WaitEvent;
2802 biosB0[0x0b] = psxBios_TestEvent;
2803 biosB0[0x0c] = psxBios_EnableEvent;
2804 biosB0[0x0d] = psxBios_DisableEvent;
2805 biosB0[0x0e] = psxBios_OpenTh;
2806 biosB0[0x0f] = psxBios_CloseTh;
2807 biosB0[0x10] = psxBios_ChangeTh;
2808 //biosB0[0x11] = psxBios_psxBios_b0_11;
2809 biosB0[0x12] = psxBios_InitPAD;
2810 biosB0[0x13] = psxBios_StartPAD;
2811 biosB0[0x14] = psxBios_StopPAD;
2812 biosB0[0x15] = psxBios_PAD_init;
2813 biosB0[0x16] = psxBios_PAD_dr;
2814 biosB0[0x17] = psxBios_ReturnFromException;
2815 biosB0[0x18] = psxBios_ResetEntryInt;
2816 biosB0[0x19] = psxBios_HookEntryInt;
2817 //biosB0[0x1a] = psxBios_sys_b0_1a;
2818 //biosB0[0x1b] = psxBios_sys_b0_1b;
2819 //biosB0[0x1c] = psxBios_sys_b0_1c;
2820 //biosB0[0x1d] = psxBios_sys_b0_1d;
2821 //biosB0[0x1e] = psxBios_sys_b0_1e;
2822 //biosB0[0x1f] = psxBios_sys_b0_1f;
2823 biosB0[0x20] = psxBios_UnDeliverEvent;
2824 //biosB0[0x21] = psxBios_sys_b0_21;
2825 //biosB0[0x22] = psxBios_sys_b0_22;
2826 //biosB0[0x23] = psxBios_sys_b0_23;
2827 //biosB0[0x24] = psxBios_sys_b0_24;
2828 //biosB0[0x25] = psxBios_sys_b0_25;
2829 //biosB0[0x26] = psxBios_sys_b0_26;
2830 //biosB0[0x27] = psxBios_sys_b0_27;
2831 //biosB0[0x28] = psxBios_sys_b0_28;
2832 //biosB0[0x29] = psxBios_sys_b0_29;
2833 //biosB0[0x2a] = psxBios_sys_b0_2a;
2834 //biosB0[0x2b] = psxBios_sys_b0_2b;
2835 //biosB0[0x2c] = psxBios_sys_b0_2c;
2836 //biosB0[0x2d] = psxBios_sys_b0_2d;
2837 //biosB0[0x2e] = psxBios_sys_b0_2e;
2838 //biosB0[0x2f] = psxBios_sys_b0_2f;
2839 //biosB0[0x30] = psxBios_sys_b0_30;
2840 //biosB0[0x31] = psxBios_sys_b0_31;
2841 biosB0[0x32] = psxBios_open;
2842 biosB0[0x33] = psxBios_lseek;
2843 biosB0[0x34] = psxBios_read;
2844 biosB0[0x35] = psxBios_write;
2845 biosB0[0x36] = psxBios_close;
2846 //biosB0[0x37] = psxBios_ioctl;
2847 //biosB0[0x38] = psxBios_exit;
2848 //biosB0[0x39] = psxBios_sys_b0_39;
2849 //biosB0[0x3a] = psxBios_getc;
2850 //biosB0[0x3b] = psxBios_putc;
2851 biosB0[0x3c] = psxBios_getchar;
2852 //biosB0[0x3e] = psxBios_gets;
2853 //biosB0[0x40] = psxBios_cd;
e7e1f572 2854 biosB0[0x41] = psxBios_format;
ef79bbde
P		 2855 biosB0[0x42] = psxBios_firstfile;
2856 biosB0[0x43] = psxBios_nextfile;
2857 biosB0[0x44] = psxBios_rename;
2858 biosB0[0x45] = psxBios_delete;
2859 //biosB0[0x46] = psxBios_undelete;
2860 //biosB0[0x47] = psxBios_AddDevice;
2861 //biosB0[0x48] = psxBios_RemoteDevice;
2862 //biosB0[0x49] = psxBios_PrintInstalledDevices;
2863 biosB0[0x4a] = psxBios_InitCARD;
2864 biosB0[0x4b] = psxBios_StartCARD;
2865 biosB0[0x4c] = psxBios_StopCARD;
2866 //biosB0[0x4d] = psxBios_sys_b0_4d;
2867 biosB0[0x4e] = psxBios__card_write;
2868 biosB0[0x4f] = psxBios__card_read;
2869 biosB0[0x50] = psxBios__new_card;
2870 biosB0[0x51] = psxBios_Krom2RawAdd;
2871 //biosB0[0x52] = psxBios_sys_b0_52;
2872 //biosB0[0x53] = psxBios_sys_b0_53;
2873 //biosB0[0x54] = psxBios__get_errno;
002b2f7d 2874 biosB0[0x55] = psxBios__get_error;
ef79bbde
P		 2875 biosB0[0x56] = psxBios_GetC0Table;
2876 biosB0[0x57] = psxBios_GetB0Table;
e9fda093 2877 biosB0[0x58] = psxBios__card_chan;
ef79bbde
P		 2878 //biosB0[0x59] = psxBios_sys_b0_59;
2879 //biosB0[0x5a] = psxBios_sys_b0_5a;
2880 biosB0[0x5b] = psxBios_ChangeClearPad;
2881 //biosB0[0x5c] = psxBios__card_status;
2882 //biosB0[0x5d] = psxBios__card_wait;
2883//*******************C0 CALLS****************************
2884 //biosC0[0x00] = psxBios_InitRCnt;
2885 //biosC0[0x01] = psxBios_InitException;
2886 biosC0[0x02] = psxBios_SysEnqIntRP;
2887 biosC0[0x03] = psxBios_SysDeqIntRP;
2888 //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2889 //biosC0[0x05] = psxBios_get_free_TCB_slot;
2890 //biosC0[0x06] = psxBios_ExceptionHandler;
2891 //biosC0[0x07] = psxBios_InstallExeptionHandler;
2892 //biosC0[0x08] = psxBios_SysInitMemory;
2893 //biosC0[0x09] = psxBios_SysInitKMem;
2894 biosC0[0x0a] = psxBios_ChangeClearRCnt;
2895 //biosC0[0x0b] = psxBios_SystemError;
2896 //biosC0[0x0c] = psxBios_InitDefInt;
2897 //biosC0[0x0d] = psxBios_sys_c0_0d;
2898 //biosC0[0x0e] = psxBios_sys_c0_0e;
2899 //biosC0[0x0f] = psxBios_sys_c0_0f;
2900 //biosC0[0x10] = psxBios_sys_c0_10;
2901 //biosC0[0x11] = psxBios_sys_c0_11;
2902 //biosC0[0x12] = psxBios_InstallDevices;
2903 //biosC0[0x13] = psxBios_FlushStfInOutPut;
2904 //biosC0[0x14] = psxBios_sys_c0_14;
2905 //biosC0[0x15] = psxBios__cdevinput;
2906 //biosC0[0x16] = psxBios__cdevscan;
2907 //biosC0[0x17] = psxBios__circgetc;
2908 //biosC0[0x18] = psxBios__circputc;
2909 //biosC0[0x19] = psxBios_ioabort;
2910 //biosC0[0x1a] = psxBios_sys_c0_1a
2911 //biosC0[0x1b] = psxBios_KernelRedirect;
2912 //biosC0[0x1c] = psxBios_PatchAOTable;
2913//************** THE END ***************************************
2914/**/
2915 base = 0x1000;
2916 size = sizeof(EvCB) * 32;
2917 Event = (void *)&psxR[base]; base += size * 6;
2918 memset(Event, 0, size * 6);
2919 HwEV = Event;
2920 EvEV = Event + 32;
2921 RcEV = Event + 32 * 2;
2922 UeEV = Event + 32 * 3;
2923 SwEV = Event + 32 * 4;
2924 ThEV = Event + 32 * 5;
2925
2926 ptr = (u32 *)&psxM[0x0874]; // b0 table
2927 ptr[0] = SWAPu32(0x4c54 - 0x884);
2928
2929 ptr = (u32 *)&psxM[0x0674]; // c0 table
2930 ptr[6] = SWAPu32(0xc80);
2931
2932 memset(SysIntRP, 0, sizeof(SysIntRP));
2933 memset(Thread, 0, sizeof(Thread));
2934 Thread[0].status = 2; // main thread
2935
c62b43c9 2936 jmp_int = NULL;
2937 pad_buf = NULL;
2938 pad_buf1 = NULL;
2939 pad_buf2 = NULL;
2940 pad_buf1len = pad_buf2len = 0;
2941 heap_addr = NULL;
2942 heap_end = NULL;
26b964b5 2943 heap_size = 0;
c62b43c9 2944 CardState = -1;
2945 CurThread = 0;
2946 memset(FDesc, 0, sizeof(FDesc));
2947
ef79bbde
P		 2948 psxMu32ref(0x0150) = SWAPu32(0x160);
2949 psxMu32ref(0x0154) = SWAPu32(0x320);
2950 psxMu32ref(0x0160) = SWAPu32(0x248);
2951 strcpy((char *)&psxM[0x248], "bu");
2952/* psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
2953 psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
2954 psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
2955 psxMu32ref(0x09e0) = SWAPu32(0x43d0);
2956 psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
2957*/
2958 // opcode HLE
2959 psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
2960 psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
2961 psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
2962 psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
2963 psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
2964 psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
2965 psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
2966 psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
2967 psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
2968 psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
2969
2970 // initial stack pointer for BIOS interrupt
2971 psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
2972
2973 // initial RNG seed
2974 psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
2975
2976 // fonts
2977 len = 0x80000 - 0x66000;
2978 uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
2979 len = 0x80000 - 0x69d68;
2980 uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
2981
2982 // memory size 2 MB
2983 psxHu32ref(0x1060) = SWAPu32(0x00000b88);
2984
2985 hleSoftCall = FALSE;
2986}
2987
2988void psxBiosShutdown() {
2989}
2990
2991#define psxBios_PADpoll(pad) { \
2992 PAD##pad##_startPoll(pad); \
2993 pad_buf##pad[0] = 0; \
2994 pad_buf##pad[1] = PAD##pad##_poll(0x42); \
2995 if (!(pad_buf##pad[1] & 0x0f)) { \
2996 bufcount = 32; \
2997 } else { \
2998 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
2999 } \
3000 PAD##pad##_poll(0); \
3001 i = 2; \
3002 while (bufcount--) { \
3003 pad_buf##pad[i++] = PAD##pad##_poll(0); \
3004 } \
3005}
3006
3007void biosInterrupt() {
3008 int i, bufcount;
3009
3010// if (psxHu32(0x1070) & 0x1) { // Vsync
3011 if (pad_buf != NULL) {
3012 u32 *buf = (u32*)pad_buf;
3013
3014 if (!Config.UseNet) {
3015 PAD1_startPoll(1);
3016 if (PAD1_poll(0x42) == 0x23) {
3017 PAD1_poll(0);
3018 *buf = PAD1_poll(0) << 8;
3019 *buf |= PAD1_poll(0);
3020 PAD1_poll(0);
3021 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
3022 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
3023 } else {
3024 PAD1_poll(0);
3025 *buf = PAD1_poll(0) << 8;
3026 *buf|= PAD1_poll(0);
3027 }
3028
3029 PAD2_startPoll(2);
3030 if (PAD2_poll(0x42) == 0x23) {
3031 PAD2_poll(0);
3032 *buf |= PAD2_poll(0) << 24;
3033 *buf |= PAD2_poll(0) << 16;
3034 PAD2_poll(0);
3035 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
3036 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
3037 } else {
3038 PAD2_poll(0);
3039 *buf |= PAD2_poll(0) << 24;
3040 *buf |= PAD2_poll(0) << 16;
3041 }
3042 } else {
3043 u16 data;
3044
3045 PAD1_startPoll(1);
3046 PAD1_poll(0x42);
3047 PAD1_poll(0);
3048 data = PAD1_poll(0) << 8;
3049 data |= PAD1_poll(0);
3050
3051 if (NET_sendPadData(&data, 2) == -1)
3052 netError();
3053
3054 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
3055 netError();
3056 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3057 netError();
3058 }
3059 }
3060 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3061 psxBios_PADpoll(1);
3062
3063 if (NET_sendPadData(pad_buf1, i) == -1)
3064 netError();
3065
3066 if (NET_recvPadData(pad_buf1, 1) == -1)
3067 netError();
3068 if (NET_recvPadData(pad_buf2, 2) == -1)
3069 netError();
3070 } else {
3071 if (pad_buf1) {
3072 psxBios_PADpoll(1);
3073 }
3074
3075 if (pad_buf2) {
3076 psxBios_PADpoll(2);
3077 }
3078 }
3079
3080 if (psxHu32(0x1070) & 0x1) { // Vsync
3081 if (RcEV[3][1].status == EvStACTIVE) {
3082 softCall(RcEV[3][1].fhandler);
3083// hwWrite32(0x1f801070, ~(1));
3084 }
3085 }
3086
3087 if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3088 int i;
3089
3090 for (i = 0; i < 3; i++) {
3091 if (psxHu32(0x1070) & (1 << (i + 4))) {
3092 if (RcEV[i][1].status == EvStACTIVE) {
3093 softCall(RcEV[i][1].fhandler);
3094 }
3095 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3096 }
3097 }
3098 }
3099}
3100
3101void psxBiosException() {
3102 int i;
3103
3104 switch (psxRegs.CP0.n.Cause & 0x3c) {
3105 case 0x00: // Interrupt
3106#ifdef PSXCPU_LOG
3107// PSXCPU_LOG("interrupt\n");
3108#endif
3109 SaveRegs();
3110
3111 sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3112
3113 biosInterrupt();
3114
3115 for (i = 0; i < 8; i++) {
3116 if (SysIntRP[i]) {
3117 u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3118
3119 s0 = queue[2];
3120 softCall(queue[1]);
3121 }
3122 }
3123
3124 if (jmp_int != NULL) {
3125 int i;
3126
3127 psxHwWrite32(0x1f801070, 0xffffffff);
3128
3129 ra = jmp_int[0];
3130 sp = jmp_int[1];
3131 fp = jmp_int[2];
3132 for (i = 0; i < 8; i++) // s0-s7
3133 psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3134 gp = jmp_int[11];
3135
3136 v0 = 1;
3137 pc0 = ra;
3138 return;
3139 }
3140 psxHwWrite16(0x1f801070, 0);
3141 break;
3142
3143 case 0x20: // Syscall
3144#ifdef PSXCPU_LOG
3145 PSXCPU_LOG("syscall exp %x\n", a0);
3146#endif
3147 switch (a0) {
3148 case 1: // EnterCritical - disable irq's
79dad1b3 3149 /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3150 v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3151 psxRegs.CP0.n.Status &= ~0x404;
ef79bbde
P		 3152 break;
3153
3154 case 2: // ExitCritical - enable irq's
3155 psxRegs.CP0.n.Status |= 0x404;
3156 break;
3157 }
3158 pc0 = psxRegs.CP0.n.EPC + 4;
3159
3160 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3161 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3162 return;
3163
3164 default:
3165#ifdef PSXCPU_LOG
3166 PSXCPU_LOG("unknown bios exception!\n");
3167#endif
3168 break;
3169 }
3170
3171 pc0 = psxRegs.CP0.n.EPC;
3172 if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3173
3174 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3175 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3176}
3177
3178#define bfreeze(ptr, size) { \
3179 if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3180 if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3181 base += size; \
3182}
3183
3184#define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3185#define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3186
3187#define bfreezepsxMptr(ptr, type) { \
3188 if (Mode == 1) { \
3189 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3190 else psxRu32ref(base) = 0; \
3191 } else { \
3192 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3193 else (ptr) = NULL; \
3194 } \
3195 base += sizeof(u32); \
3196}
3197
3198void psxBiosFreeze(int Mode) {
3199 u32 base = 0x40000;
3200
3201 bfreezepsxMptr(jmp_int, u32);
3202 bfreezepsxMptr(pad_buf, int);
3203 bfreezepsxMptr(pad_buf1, char);
3204 bfreezepsxMptr(pad_buf2, char);
3205 bfreezepsxMptr(heap_addr, u32);
3206 bfreezel(&pad_buf1len);
3207 bfreezel(&pad_buf2len);
3208 bfreezes(regs);
3209 bfreezes(SysIntRP);
3210 bfreezel(&CardState);
3211 bfreezes(Thread);
3212 bfreezel(&CurThread);
3213 bfreezes(FDesc);
e9fda093 3214 bfreezel(&card_active_chan);
ef79bbde 3215}
ARM optimized PCSX fork