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