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psxbios: Add checks for strcpy & strncpy.
[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;
ba4ecb8c 589 if (a0 == 0 && a1 == 0)
590 {
591 v0 = 0;
592 pc0 = ra;
593 return;
594 }
595 else if (a0 == 0 && a1 != 0)
596 {
597 v0 = -1;
598 pc0 = ra;
599 return;
600 }
601 else if (a0 != 0 && a1 == 0)
602 {
603 v0 = 1;
604 pc0 = ra;
605 return;
606 }
ef79bbde
P		 607#ifdef PSXBIOS_LOG
608 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
609#endif
610
611 while (--n >= 0 && *p1 == *p2++) {
612 if (*p1++ == '\0') {
613 v0 = 0;
614 pc0 = ra;
ba4ecb8c 615 v1 = a2 - ((a2-n) - 1);
616 a0 += (a2-n) - 1;
617 a1 += (a2-n) - 1;
618 a2 = n;
ef79bbde
P		 619 return;
620 }
621 }
622
623 v0 = (n < 0 ? 0 : *p1 - *--p2);
624 pc0 = ra;
ba4ecb8c 625 v1 = a2 - ((a2-n) - 1);
626 a0 += (a2-n) - 1;
627 a1 += (a2-n) - 1;
628 a2 = n;
ef79bbde
P		 629}
630
631void psxBios_strcpy() { // 0x19
632 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
c3d791f1 633 if (a0 == 0 || a1 == 0)
634 {
635 v0 = 0;
636 pc0 = ra;
637 return;
638 }
ef79bbde
P		 639 while ((*p1++ = *p2++) != '\0');
640
641 v0 = a0; pc0 = ra;
642}
643
644void psxBios_strncpy() { // 0x1a
645 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
646 s32 n = a2, i;
c3d791f1 647 if (a0 == 0 || a1 == 0)
648 {
649 v0 = 0;
650 pc0 = ra;
651 return;
652 }
ef79bbde
P		 653 for (i = 0; i < n; i++) {
654 if ((*p1++ = *p2++) == '\0') {
655 while (++i < n) {
656 *p1++ = '\0';
657 }
658 v0 = a0; pc0 = ra;
659 return;
660 }
661 }
662
663 v0 = a0; pc0 = ra;
664}
665
666void psxBios_strlen() { // 0x1b
667 char *p = (char *)Ra0;
668 v0 = 0;
669 while (*p++) v0++;
670 pc0 = ra;
671}
672
673void psxBios_index() { // 0x1c
674 char *p = (char *)Ra0;
fcf7ec6c 675 if (a0 == 0)
676 {
677 v0 = 0;
678 pc0 = ra;
679 return;
680 }
681
ef79bbde
P		 682 do {
683 if (*p == a1) {
684 v0 = a0 + (p - (char *)Ra0);
685 pc0 = ra;
686 return;
687 }
688 } while (*p++ != '\0');
689
690 v0 = 0; pc0 = ra;
691}
692
693void psxBios_rindex() { // 0x1d
694 char *p = (char *)Ra0;
695
696 v0 = 0;
fcf7ec6c 697 if (a0 == 0)
698 {
699 pc0 = ra;
700 return;
701 }
ef79bbde
P		 702 do {
703 if (*p == a1)
704 v0 = a0 + (p - (char *)Ra0);
705 } while (*p++ != '\0');
706
707 pc0 = ra;
708}
709
710void psxBios_strchr() { // 0x1e
711 psxBios_index();
712}
713
714void psxBios_strrchr() { // 0x1f
715 psxBios_rindex();
716}
717
718void psxBios_strpbrk() { // 0x20
719 char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
720
721 while ((c = *p1++) != '\0') {
722 for (scanp = p2; (sc = *scanp++) != '\0';) {
723 if (sc == c) {
724 v0 = a0 + (p1 - 1 - (char *)Ra0);
725 pc0 = ra;
726 return;
727 }
728 }
729 }
730
731 // BUG: return a0 instead of NULL if not found
732 v0 = a0; pc0 = ra;
733}
734
735void psxBios_strspn() { // 0x21
736 char *p1, *p2;
737
738 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
739 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
740 if (*p2 == '\0') break;
741 }
742
743 v0 = p1 - (char *)Ra0; pc0 = ra;
744}
745
746void psxBios_strcspn() { // 0x22
747 char *p1, *p2;
748
749 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
750 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
751 if (*p2 != '\0') break;
752 }
753
754 v0 = p1 - (char *)Ra0; pc0 = ra;
755}
756
757void psxBios_strtok() { // 0x23
758 char *pcA0 = (char *)Ra0;
759 char *pcRet = strtok(pcA0, (char *)Ra1);
760 if (pcRet)
761 v0 = a0 + pcRet - pcA0;
762 else
763 v0 = 0;
764 pc0 = ra;
765}
766
767void psxBios_strstr() { // 0x24
768 char *p = (char *)Ra0, *p1, *p2;
769
770 while (*p != '\0') {
771 p1 = p;
772 p2 = (char *)Ra1;
773
774 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
775 p1++; p2++;
776 }
777
778 if (*p2 == '\0') {
779 v0 = a0 + (p - (char *)Ra0);
780 pc0 = ra;
781 return;
782 }
783
784 p++;
785 }
786
787 v0 = 0; pc0 = ra;
788}
789
790void psxBios_toupper() { // 0x25
791 v0 = (s8)(a0 & 0xff);
792 if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
793 pc0 = ra;
794}
795
796void psxBios_tolower() { // 0x26
797 v0 = (s8)(a0 & 0xff);
798 if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
799 pc0 = ra;
800}
801
802void psxBios_bcopy() { // 0x27
803 char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
0148ffb7 804 v0 = a0;
805 if (a0 == 0 || a2 > 0x7FFFFFFF)
806 {
807 pc0 = ra;
808 return;
809 }
5ec7acdf 810 while ((s32)a2-- > 0) *p1++ = *p2++;
0148ffb7 811 a2 = 0;
ef79bbde
P		 812 pc0 = ra;
813}
814
815void psxBios_bzero() { // 0x28
816 char *p = (char *)Ra0;
01724d23 817 v0 = a0;
818 /* Same as memset here (See memset below) */
819 if (a1 > 0x7FFFFFFF || a1 == 0)
820 {
821 v0 = 0;
822 pc0 = ra;
823 return;
824 }
825 else if (a0 == 0)
826 {
827 pc0 = ra;
828 return;
829 }
5ec7acdf 830 while ((s32)a1-- > 0) *p++ = '\0';
01724d23 831 a1 = 0;
ef79bbde
P		 832 pc0 = ra;
833}
834
835void psxBios_bcmp() { // 0x29
836 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
837
838 if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
839
5ec7acdf 840 while ((s32)a2-- > 0) {
ef79bbde
P		 841 if (*p1++ != *p2++) {
842 v0 = *p1 - *p2; // BUG: compare the NEXT byte
843 pc0 = ra;
844 return;
845 }
846 }
847
848 v0 = 0; pc0 = ra;
849}
850
851void psxBios_memcpy() { // 0x2a
852 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
ef1da3dc 853 s32 n=0;
854 v0 = a0;
855 if (a0 == 0 || a2 > 0x7FFFFFFF)
856 {
857 pc0 = ra;
858 return;
859 }
860 while ((s32)a2-- > 0) {
861 n++;
862 *p1++ = *p2++;
863 }
864 a2 = 0;
865 pc0 = ra;
ef79bbde
P		 866}
867
868void psxBios_memset() { // 0x2b
869 char *p = (char *)Ra0;
3f28b64f 870 v0 = a0;
871 if (a2 > 0x7FFFFFFF || a2 == 0)
872 {
873 v0 = 0;
874 pc0 = ra;
875 return;
876 }
877 if (a0 == 0)
878 {
879 pc0 = ra;
880 return;
881 }
5ec7acdf 882 while ((s32)a2-- > 0) *p++ = (char)a1;
5ec7acdf 883 a2 = 0;
ef79bbde
P		 884 v0 = a0; pc0 = ra;
885}
886
887void psxBios_memmove() { // 0x2c
888 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
112dddf5 889 v0 = a0;
890 if (a0 == 0 || a2 > 0x7FFFFFFF)
891 {
892 pc0 = ra;
893 return;
894 }
ef79bbde
P		 895 if (p2 <= p1 && p2 + a2 > p1) {
896 a2++; // BUG: copy one more byte here
897 p1 += a2;
898 p2 += a2;
5ec7acdf 899 while ((s32)a2-- > 0) *--p1 = *--p2;
ef79bbde 900 } else {
5ec7acdf 901 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde 902 }
112dddf5 903 pc0 = ra;
ef79bbde
P		 904}
905
906void psxBios_memcmp() { // 0x2d
907 psxBios_bcmp();
908}
909
910void psxBios_memchr() { // 0x2e
911 char *p = (char *)Ra0;
912
5ec7acdf 913 while ((s32)a2-- > 0) {
ef79bbde
P		 914 if (*p++ != (s8)a1) continue;
915 v0 = a0 + (p - (char *)Ra0 - 1);
916 pc0 = ra;
917 return;
918 }
919
920 v0 = 0; pc0 = ra;
921}
922
923void psxBios_rand() { // 0x2f
924 u32 s = psxMu32(0x9010) * 1103515245 + 12345;
925 v0 = (s >> 16) & 0x7fff;
926 psxMu32ref(0x9010) = SWAPu32(s);
927 pc0 = ra;
928}
929
930void psxBios_srand() { // 0x30
931 psxMu32ref(0x9010) = SWAPu32(a0);
932 pc0 = ra;
933}
934
935static u32 qscmpfunc, qswidth;
936
937static inline int qscmp(char *a, char *b) {
938 u32 sa0 = a0;
939
940 a0 = sa0 + (a - (char *)PSXM(sa0));
941 a1 = sa0 + (b - (char *)PSXM(sa0));
942
943 softCall2(qscmpfunc);
944
945 a0 = sa0;
946 return (s32)v0;
947}
948
949static inline void qexchange(char *i, char *j) {
950 char t;
951 int n = qswidth;
952
953 do {
954 t = *i;
955 *i++ = *j;
956 *j++ = t;
957 } while (--n);
958}
959
960static inline void q3exchange(char *i, char *j, char *k) {
961 char t;
962 int n = qswidth;
963
964 do {
965 t = *i;
966 *i++ = *k;
967 *k++ = *j;
968 *j++ = t;
969 } while (--n);
970}
971
972static void qsort_main(char *a, char *l) {
973 char *i, *j, *lp, *hp;
974 int c;
975 unsigned int n;
976
977start:
978 if ((n = l - a) <= qswidth)
979 return;
980 n = qswidth * (n / (2 * qswidth));
981 hp = lp = a + n;
982 i = a;
983 j = l - qswidth;
984 while (TRUE) {
985 if (i < lp) {
986 if ((c = qscmp(i, lp)) == 0) {
987 qexchange(i, lp -= qswidth);
988 continue;
989 }
990 if (c < 0) {
991 i += qswidth;
992 continue;
993 }
994 }
995
996loop:
997 if (j > hp) {
998 if ((c = qscmp(hp, j)) == 0) {
999 qexchange(hp += qswidth, j);
1000 goto loop;
1001 }
1002 if (c > 0) {
1003 if (i == lp) {
1004 q3exchange(i, hp += qswidth, j);
1005 i = lp += qswidth;
1006 goto loop;
1007 }
1008 qexchange(i, j);
1009 j -= qswidth;
1010 i += qswidth;
1011 continue;
1012 }
1013 j -= qswidth;
1014 goto loop;
1015 }
1016
1017 if (i == lp) {
1018 if (lp - a >= l - hp) {
1019 qsort_main(hp + qswidth, l);
1020 l = lp;
1021 } else {
1022 qsort_main(a, lp);
1023 a = hp + qswidth;
1024 }
1025 goto start;
1026 }
1027
1028 q3exchange(j, lp -= qswidth, i);
1029 j = hp -= qswidth;
1030 }
1031}
1032
1033void psxBios_qsort() { // 0x31
1034 qswidth = a2;
1035 qscmpfunc = a3;
1036 qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
1037
1038 pc0 = ra;
1039}
1040
1041void psxBios_malloc() { // 0x33
808a13bd 1042 unsigned int *chunk, *newchunk = NULL;
1043 unsigned int dsize = 0, csize, cstat;
ef79bbde
P		 1044 int colflag;
1045#ifdef PSXBIOS_LOG
1046 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
1047#endif
26b964b5 1048 if (!a0 || (!heap_size || !heap_addr)) {
1049 v0 = 0;
1050 pc0 = ra;
1051 return;
1052 }
ef79bbde
P		 1053
1054 // scan through heap and combine free chunks of space
1055 chunk = heap_addr;
1056 colflag = 0;
1057 while(chunk < heap_end) {
1058 // get size and status of actual chunk
1059 csize = ((u32)*chunk) & 0xfffffffc;
1060 cstat = ((u32)*chunk) & 1;
1061
26b964b5 1062 // most probably broken heap descriptor
1063 // this fixes Burning Road
1064 if (*chunk == 0) {
1065 newchunk = chunk;
1066 dsize = ((uptr)heap_end - (uptr)chunk) - 4;
1067 colflag = 1;
1068 break;
1069 }
1070
ef79bbde
P		 1071 // it's a free chunk
1072 if(cstat == 1) {
1073 if(colflag == 0) {
1074 newchunk = chunk;
1075 dsize = csize;
1076 colflag = 1; // let's begin a new collection of free memory
1077 }
1078 else dsize += (csize+4); // add the new size including header
1079 }
1080 // not a free chunk: did we start a collection ?
1081 else {
1082 if(colflag == 1) { // collection is over
1083 colflag = 0;
1084 *newchunk = SWAP32(dsize | 1);
1085 }
1086 }
1087
1088 // next chunk
1089 chunk = (u32*)((uptr)chunk + csize + 4);
1090 }
1091 // if neccessary free memory on end of heap
1092 if (colflag == 1)
1093 *newchunk = SWAP32(dsize | 1);
1094
1095 chunk = heap_addr;
1096 csize = ((u32)*chunk) & 0xfffffffc;
1097 cstat = ((u32)*chunk) & 1;
1098 dsize = (a0 + 3) & 0xfffffffc;
1099
1100 // exit on uninitialized heap
1101 if (chunk == NULL) {
26b964b5 1102 printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
ef79bbde
P		 1103 v0 = 0;
1104 pc0 = ra;
1105 return;
1106 }
1107
1108 // search an unused chunk that is big enough until the end of the heap
26b964b5 1109 while ((dsize > csize || cstat==0) && chunk < heap_end ) {
ef79bbde 1110 chunk = (u32*)((uptr)chunk + csize + 4);
26b964b5 1111
1112 // catch out of memory
1113 if(chunk >= heap_end) {
1114 printf("malloc %x,%x: Out of memory error!\n",
1115 v0, a0);
1116 v0 = 0; pc0 = ra;
1117 return;
1118 }
1119
ef79bbde
P		 1120 csize = ((u32)*chunk) & 0xfffffffc;
1121 cstat = ((u32)*chunk) & 1;
1122 }
1123
ef79bbde
P		 1124 // allocate memory
1125 if(dsize == csize) {
1126 // chunk has same size
1127 *chunk &= 0xfffffffc;
26b964b5 1128 } else if (dsize > csize) {
1129 v0 = 0; pc0 = ra;
1130 return;
1131 } else {
ef79bbde
P		 1132 // split free chunk
1133 *chunk = SWAP32(dsize);
1134 newchunk = (u32*)((uptr)chunk + dsize + 4);
808a13bd 1135 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
ef79bbde
P		 1136 }
1137
1138 // return pointer to allocated memory
26b964b5 1139 v0 = ((uptr)chunk - (uptr)psxM) + 4;
ef79bbde 1140 v0|= 0x80000000;
26b964b5 1141 //printf ("malloc %x,%x\n", v0, a0);
ef79bbde
P		 1142 pc0 = ra;
1143}
1144
1145void psxBios_free() { // 0x34
1146
1147#ifdef PSXBIOS_LOG
1148 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1149#endif
1150
1151 SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1152
ba4ecb8c 1153 if (a0)
1154 *(u32*)(Ra0-4) |= 1; // set chunk to free
ef79bbde
P		 1155 pc0 = ra;
1156}
1157
1158void psxBios_calloc() { // 0x37
02949f79 1159 void *pv0;
ef79bbde
P		 1160#ifdef PSXBIOS_LOG
1161 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1162#endif
1163
1164 a0 = a0 * a1;
1165 psxBios_malloc();
02949f79 1166 pv0 = Rv0;
1167 if (pv0)
1168 memset(pv0, 0, a0);
ef79bbde
P		 1169}
1170
1171void psxBios_realloc() { // 0x38
1172 u32 block = a0;
1173 u32 size = a1;
1174#ifdef PSXBIOS_LOG
1175 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1176#endif
1177
1178 a0 = block;
391b1d5b 1179 /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1180 if (block == 0)
1181 {
1182 psxBios_malloc();
1183 }
1184 /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1185 else if (size == 0)
1186 {
1187 psxBios_free();
1188 }
1189 /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1190 /* Note that it is not quite implemented this way here. */
1191 else
1192 {
1193 psxBios_free();
1194 a0 = size;
1195 psxBios_malloc();
1196 }
ef79bbde
P		 1197}
1198
1199
1200/* InitHeap(void *block , int n) */
1201void psxBios_InitHeap() { // 0x39
1202 unsigned int size;
1203
1204#ifdef PSXBIOS_LOG
1205 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1206#endif
1207
1208 if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1209 else size = a1;
1210
1211 size &= 0xfffffffc;
1212
1213 heap_addr = (u32 *)Ra0;
1214 heap_end = (u32 *)((u8 *)heap_addr + size);
1215 *heap_addr = SWAP32(size | 1);
1216
c979c3ee 1217 SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
ef79bbde
P		 1218
1219 pc0 = ra;
1220}
1221
1222void psxBios_getchar() { //0x3b
1223 v0 = getchar(); pc0 = ra;
1224}
1225
1226void psxBios_printf() { // 0x3f
1227 char tmp[1024];
1228 char tmp2[1024];
1229 u32 save[4];
1230 char *ptmp = tmp;
1231 int n=1, i=0, j;
02949f79 1232 void *psp;
1233
1234 psp = PSXM(sp);
1235 if (psp) {
1236 memcpy(save, psp, 4 * 4);
1237 psxMu32ref(sp) = SWAP32((u32)a0);
1238 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1239 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1240 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1241 }
ef79bbde
P		 1242
1243 while (Ra0[i]) {
1244 switch (Ra0[i]) {
1245 case '%':
1246 j = 0;
1247 tmp2[j++] = '%';
1248_start:
1249 switch (Ra0[++i]) {
1250 case '.':
1251 case 'l':
1252 tmp2[j++] = Ra0[i]; goto _start;
1253 default:
1254 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1255 tmp2[j++] = Ra0[i];
1256 goto _start;
1257 }
1258 break;
1259 }
1260 tmp2[j++] = Ra0[i];
1261 tmp2[j] = 0;
1262
1263 switch (Ra0[i]) {
1264 case 'f': case 'F':
1265 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1266 case 'a': case 'A':
1267 case 'e': case 'E':
1268 case 'g': case 'G':
1269 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1270 case 'p':
888468ff 1271 case 'i': case 'u':
ef79bbde
P		 1272 case 'd': case 'D':
1273 case 'o': case 'O':
1274 case 'x': case 'X':
1275 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1276 case 'c':
1277 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1278 case 's':
1279 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1280 case '%':
1281 *ptmp++ = Ra0[i]; break;
1282 }
1283 i++;
1284 break;
1285 default:
1286 *ptmp++ = Ra0[i++];
1287 }
1288 }
1289 *ptmp = 0;
1290
02949f79 1291 if (psp)
1292 memcpy(psp, save, 4 * 4);
ef79bbde 1293
808a13bd 1294 SysPrintf("%s", tmp);
ef79bbde
P		 1295
1296 pc0 = ra;
1297}
1298
e7e1f572 1299void psxBios_format() { // 0x41
1300 if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1301 {
1302 CreateMcd(Config.Mcd1);
1303 LoadMcd(1, Config.Mcd1);
1304 v0 = 1;
1305 }
1306 else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1307 {
1308 CreateMcd(Config.Mcd2);
1309 LoadMcd(2, Config.Mcd2);
1310 v0 = 1;
1311 }
1312 else
1313 {
1314 v0 = 0;
1315 }
1316 pc0 = ra;
1317}
1318
ef79bbde
P		 1319/*
1320 * long Load(char *name, struct EXEC *header);
1321 */
1322
1323void psxBios_Load() { // 0x42
1324 EXE_HEADER eheader;
02949f79 1325 void *pa1;
ef79bbde
P		 1326
1327#ifdef PSXBIOS_LOG
1328 PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1329#endif
1330
02949f79 1331 pa1 = Ra1;
1332 if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1333 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
ef79bbde
P		 1334 v0 = 1;
1335 } else v0 = 0;
1336
1337 pc0 = ra;
1338}
1339
1340/*
1341 * int Exec(struct EXEC *header , int argc , char **argv);
1342 */
1343
1344void psxBios_Exec() { // 43
1345 EXEC *header = (EXEC*)Ra0;
1346 u32 tmp;
1347
1348#ifdef PSXBIOS_LOG
1349 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1350#endif
1351
1352 header->_sp = sp;
1353 header->_fp = fp;
1354 header->_sp = sp;
1355 header->_gp = gp;
1356 header->ret = ra;
1357 header->base = s0;
1358
1359 if (header->S_addr != 0) {
1360 tmp = header->S_addr + header->s_size;
1361 sp = tmp;
1362 fp = sp;
1363 }
1364
1365 gp = header->gp0;
1366
1367 s0 = a0;
1368
1369 a0 = a1;
1370 a1 = a2;
1371
1372 ra = 0x8000;
1373 pc0 = header->_pc0;
1374}
1375
1376void psxBios_FlushCache() { // 44
1377#ifdef PSXBIOS_LOG
1378 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1379#endif
1380
1381 pc0 = ra;
1382}
1383
1384void psxBios_GPU_dw() { // 0x46
1385 int size;
1386 s32 *ptr;
1387
1388#ifdef PSXBIOS_LOG
1389 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1390#endif
1391
1392 GPU_writeData(0xa0000000);
1393 GPU_writeData((a1<<16)|(a0&0xffff));
1394 GPU_writeData((a3<<16)|(a2&0xffff));
1395 size = (a2*a3+1)/2;
1396 ptr = (s32*)PSXM(Rsp[4]); //that is correct?
1397 do {
1398 GPU_writeData(SWAP32(*ptr));
1399 ptr++;
1400 } while(--size);
1401
1402 pc0 = ra;
1403}
1404
1405void psxBios_mem2vram() { // 0x47
1406 int size;
1407
1408 GPU_writeData(0xa0000000);
1409 GPU_writeData((a1<<16)|(a0&0xffff));
1410 GPU_writeData((a3<<16)|(a2&0xffff));
1411 size = (a2*a3+1)/2;
1412 GPU_writeStatus(0x04000002);
1413 psxHwWrite32(0x1f8010f4,0);
1414 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1415 psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1416 psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1417 psxHwWrite32(0x1f8010a8,0x01000201);
1418
1419 pc0 = ra;
1420}
1421
1422void psxBios_SendGPU() { // 0x48
1423 GPU_writeStatus(a0);
ddbaf678 1424 gpuSyncPluginSR();
ef79bbde
P		 1425 pc0 = ra;
1426}
1427
1428void psxBios_GPU_cw() { // 0x49
1429 GPU_writeData(a0);
1430 pc0 = ra;
1431}
1432
1433void psxBios_GPU_cwb() { // 0x4a
1434 s32 *ptr = (s32*)Ra0;
1435 int size = a1;
1436 while(size--) {
1437 GPU_writeData(SWAP32(*ptr));
1438 ptr++;
1439 }
1440
1441 pc0 = ra;
1442}
1443
1444void psxBios_GPU_SendPackets() { //4b:
1445 GPU_writeStatus(0x04000002);
1446 psxHwWrite32(0x1f8010f4,0);
1447 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1448 psxHwWrite32(0x1f8010a0,a0);
1449 psxHwWrite32(0x1f8010a4,0);
1450 psxHwWrite32(0x1f8010a8,0x010000401);
1451 pc0 = ra;
1452}
1453
1454void psxBios_sys_a0_4c() { // 0x4c GPU relate
1455 psxHwWrite32(0x1f8010a8,0x00000401);
1456 GPU_writeData(0x0400000);
1457 GPU_writeData(0x0200000);
1458 GPU_writeData(0x0100000);
cd1ea245 1459 v0 = 0x1f801814;
ef79bbde
P		 1460 pc0 = ra;
1461}
1462
1463void psxBios_GPU_GetGPUStatus() { // 0x4d
1464 v0 = GPU_readStatus();
1465 pc0 = ra;
1466}
1467
1468#undef s_addr
1469
1470void psxBios_LoadExec() { // 51
1471 EXEC *header = (EXEC*)PSXM(0xf000);
1472 u32 s_addr, s_size;
1473
1474#ifdef PSXBIOS_LOG
1475 PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1476#endif
1477 s_addr = a1; s_size = a2;
1478
1479 a1 = 0xf000;
1480 psxBios_Load();
1481
1482 header->S_addr = s_addr;
1483 header->s_size = s_size;
1484
1485 a0 = 0xf000; a1 = 0; a2 = 0;
1486 psxBios_Exec();
1487}
1488
1489void psxBios__bu_init() { // 70
1490#ifdef PSXBIOS_LOG
1491 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1492#endif
1493
1494 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1495 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1496
1497 pc0 = ra;
1498}
1499
1500void psxBios__96_init() { // 71
1501#ifdef PSXBIOS_LOG
1502 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1503#endif
1504
1505 pc0 = ra;
1506}
1507
1508void psxBios__96_remove() { // 72
1509#ifdef PSXBIOS_LOG
1510 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1511#endif
1512
1513 pc0 = ra;
1514}
1515
1516void psxBios_SetMem() { // 9f
1517 u32 new = psxHu32(0x1060);
1518
1519#ifdef PSXBIOS_LOG
1520 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1521#endif
1522
1523 switch(a0) {
1524 case 2:
1525 psxHu32ref(0x1060) = SWAP32(new);
1526 psxMu32ref(0x060) = a0;
1527 SysPrintf("Change effective memory : %d MBytes\n",a0);
1528 break;
1529
1530 case 8:
1531 psxHu32ref(0x1060) = SWAP32(new | 0x300);
1532 psxMu32ref(0x060) = a0;
1533 SysPrintf("Change effective memory : %d MBytes\n",a0);
1534
1535 default:
1536 SysPrintf("Effective memory must be 2/8 MBytes\n");
1537 break;
1538 }
1539
1540 pc0 = ra;
1541}
1542
1543void psxBios__card_info() { // ab
1544#ifdef PSXBIOS_LOG
1545 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1546#endif
76b81516 1547 u32 ret;
e9fda093 1548 card_active_chan = a0;
1549
76b81516 1550 switch (card_active_chan)
1551 {
1552 case 0x00: case 0x01: case 0x02: case 0x03:
1553 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1554 break;
1555 case 0x10: case 0x11: case 0x12: case 0x13:
1556 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1557 break;
1558 default:
1559#ifdef PSXBIOS_LOG
1560 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1561#endif
1562 ret = 0x11;
1563 break;
1564 }
1565
1566// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
ef79bbde
P		 1567// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1568 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
76b81516 1569 DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
ef79bbde
P		 1570
1571 v0 = 1; pc0 = ra;
1572}
1573
1574void psxBios__card_load() { // ac
1575#ifdef PSXBIOS_LOG
1576 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1577#endif
1578
e9fda093 1579 card_active_chan = a0;
1580
ef79bbde
P		 1581// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1582 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1583
1584 v0 = 1; pc0 = ra;
1585}
1586
1587/* System calls B0 */
1588
1589void psxBios_SetRCnt() { // 02
1590#ifdef PSXBIOS_LOG
1591 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1592#endif
1593
1594 a0&= 0x3;
1595 if (a0 != 3) {
1596 u32 mode=0;
1597
1598 psxRcntWtarget(a0, a1);
1599 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1600 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1601 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1602 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1603 else { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1604
1605 psxRcntWmode(a0, mode);
1606 }
1607 pc0 = ra;
1608}
1609
1610void psxBios_GetRCnt() { // 03
1611#ifdef PSXBIOS_LOG
1612 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1613#endif
1614
1615 a0&= 0x3;
1616 if (a0 != 3) v0 = psxRcntRcount(a0);
1617 else v0 = 0;
1618 pc0 = ra;
1619}
1620
1621void psxBios_StartRCnt() { // 04
1622#ifdef PSXBIOS_LOG
1623 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1624#endif
1625
1626 a0&= 0x3;
1627 if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1628 else psxHu32ref(0x1074)|= SWAPu32(0x1);
1629 v0 = 1; pc0 = ra;
1630}
1631
1632void psxBios_StopRCnt() { // 05
1633#ifdef PSXBIOS_LOG
1634 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1635#endif
1636
1637 a0&= 0x3;
1638 if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1639 else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1640 pc0 = ra;
1641}
1642
1643void psxBios_ResetRCnt() { // 06
1644#ifdef PSXBIOS_LOG
1645 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1646#endif
1647
1648 a0&= 0x3;
1649 if (a0 != 3) {
1650 psxRcntWmode(a0, 0);
1651 psxRcntWtarget(a0, 0);
1652 psxRcntWcount(a0, 0);
1653 }
1654 pc0 = ra;
1655}
1656
1657
1658/* gets ev for use with Event */
1659#define GetEv() \
1660 ev = (a0 >> 24) & 0xf; \
1661 if (ev == 0xf) ev = 0x5; \
1662 ev*= 32; \
1663 ev+= a0&0x1f;
1664
1665/* gets spec for use with Event */
1666#define GetSpec() \
1667 spec = 0; \
1668 switch (a1) { \
1669 case 0x0301: spec = 16; break; \
1670 case 0x0302: spec = 17; break; \
1671 default: \
1672 for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1673 break; \
1674 }
1675
1676void psxBios_DeliverEvent() { // 07
1677 int ev, spec;
1678 int i;
1679
1680 GetEv();
1681 GetSpec();
1682
1683#ifdef PSXBIOS_LOG
1684 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1685#endif
1686
1687 DeliverEvent(ev, spec);
1688
1689 pc0 = ra;
1690}
1691
1692void psxBios_OpenEvent() { // 08
1693 int ev, spec;
1694 int i;
1695
1696 GetEv();
1697 GetSpec();
1698
1699#ifdef PSXBIOS_LOG
1700 PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1701#endif
1702
1703 Event[ev][spec].status = EvStWAIT;
1704 Event[ev][spec].mode = a2;
1705 Event[ev][spec].fhandler = a3;
1706
1707 v0 = ev | (spec << 8);
1708 pc0 = ra;
1709}
1710
1711void psxBios_CloseEvent() { // 09
1712 int ev, spec;
1713
1714 ev = a0 & 0xff;
1715 spec = (a0 >> 8) & 0xff;
1716
1717#ifdef PSXBIOS_LOG
1718 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1719#endif
1720
1721 Event[ev][spec].status = EvStUNUSED;
1722
1723 v0 = 1; pc0 = ra;
1724}
1725
1726void psxBios_WaitEvent() { // 0a
1727 int ev, spec;
1728
1729 ev = a0 & 0xff;
1730 spec = (a0 >> 8) & 0xff;
ef79bbde
P		 1731#ifdef PSXBIOS_LOG
1732 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1733#endif
d95c9dcb 1734 if (Event[ev][spec].status == EvStUNUSED)
1735 {
1736 v0 = 0;
1737 pc0 = ra;
1738 return;
1739 }
ef79bbde 1740
d95c9dcb 1741 if (Event[ev][spec].status == EvStALREADY)
1742 {
1743 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1744 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1745 v0 = 1;
1746 pc0 = ra;
1747 return;
1748 }
ef79bbde 1749
d95c9dcb 1750 v0 = 0;
1751 pc0 = ra;
ef79bbde
P		 1752}
1753
1754void psxBios_TestEvent() { // 0b
1755 int ev, spec;
1756
1757 ev = a0 & 0xff;
1758 spec = (a0 >> 8) & 0xff;
1759
1760 if (Event[ev][spec].status == EvStALREADY) {
1761 Event[ev][spec].status = EvStACTIVE; v0 = 1;
1762 } else v0 = 0;
1763
1764#ifdef PSXBIOS_LOG
1765 PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1766#endif
1767
1768 pc0 = ra;
1769}
1770
1771void psxBios_EnableEvent() { // 0c
1772 int ev, spec;
1773
1774 ev = a0 & 0xff;
1775 spec = (a0 >> 8) & 0xff;
1776
1777#ifdef PSXBIOS_LOG
1778 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1779#endif
1780
1781 Event[ev][spec].status = EvStACTIVE;
1782
1783 v0 = 1; pc0 = ra;
1784}
1785
1786void psxBios_DisableEvent() { // 0d
1787 int ev, spec;
1788
1789 ev = a0 & 0xff;
1790 spec = (a0 >> 8) & 0xff;
1791
1792#ifdef PSXBIOS_LOG
1793 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1794#endif
1795
1796 Event[ev][spec].status = EvStWAIT;
1797
1798 v0 = 1; pc0 = ra;
1799}
1800
1801/*
1802 * long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1803 */
1804
1805void psxBios_OpenTh() { // 0e
1806 int th;
1807
1808 for (th=1; th<8; th++)
a66d3058 1809 {
ef79bbde
P		 1810 if (Thread[th].status == 0) break;
1811
a66d3058 1812 }
1813 if (th == 8) {
1814 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1815 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1816#ifdef PSXBIOS_LOG
1817 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1818#endif
1819 v0 = 0xffffffff;
1820 pc0 = ra;
1821 return;
1822 }
ef79bbde
P		 1823#ifdef PSXBIOS_LOG
1824 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1825#endif
1826
1827 Thread[th].status = 1;
1828 Thread[th].func = a0;
1829 Thread[th].reg[29] = a1;
1830 Thread[th].reg[28] = a2;
1831
1832 v0 = th; pc0 = ra;
1833}
1834
1835/*
1836 * int CloseTh(long thread);
1837 */
1838
1839void psxBios_CloseTh() { // 0f
1840 int th = a0 & 0xff;
1841
1842#ifdef PSXBIOS_LOG
1843 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1844#endif
1845
1846 if (Thread[th].status == 0) {
1847 v0 = 0;
1848 } else {
1849 Thread[th].status = 0;
1850 v0 = 1;
1851 }
1852
1853 pc0 = ra;
1854}
1855
1856/*
1857 * int ChangeTh(long thread);
1858 */
1859
1860void psxBios_ChangeTh() { // 10
1861 int th = a0 & 0xff;
1862
1863#ifdef PSXBIOS_LOG
1864// PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1865#endif
1866
1867 if (Thread[th].status == 0 || CurThread == th) {
1868 v0 = 0;
1869
1870 pc0 = ra;
1871 } else {
1872 v0 = 1;
1873
1874 if (Thread[CurThread].status == 2) {
1875 Thread[CurThread].status = 1;
1876 Thread[CurThread].func = ra;
1877 memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1878 }
1879
1880 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1881 pc0 = Thread[th].func;
1882 Thread[th].status = 2;
1883 CurThread = th;
1884 }
1885}
1886
1887void psxBios_InitPAD() { // 0x12
1888#ifdef PSXBIOS_LOG
1889 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1890#endif
1891
1892 pad_buf1 = (char*)Ra0;
1893 pad_buf1len = a1;
1894 pad_buf2 = (char*)Ra2;
1895 pad_buf2len = a3;
1896
1897 v0 = 1; pc0 = ra;
1898}
1899
1900void psxBios_StartPAD() { // 13
1901#ifdef PSXBIOS_LOG
1902 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1903#endif
1904
1905 psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1906 psxRegs.CP0.n.Status |= 0x401;
1907 pc0 = ra;
1908}
1909
1910void psxBios_StopPAD() { // 14
1911#ifdef PSXBIOS_LOG
1912 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1913#endif
8a0245bb 1914 if (pad_buf == 0){
ef79bbde
P		 1915 pad_buf1 = NULL;
1916 pad_buf2 = NULL;
8a0245bb 1917 }
ef79bbde
P		 1918 pc0 = ra;
1919}
1920
1921void psxBios_PAD_init() { // 15
1922#ifdef PSXBIOS_LOG
1923 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1924#endif
a824e83d 1925 if (!(a0 == 0x20000000 || a0 == 0x20000001))
1926 {
1927 v0 = 0;
1928 pc0 = ra;
1929 return;
1930 }
ef79bbde
P		 1931 psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1932 pad_buf = (int *)Ra1;
1933 *pad_buf = -1;
1934 psxRegs.CP0.n.Status |= 0x401;
a824e83d 1935 v0 = 2;
ef79bbde
P		 1936 pc0 = ra;
1937}
1938
1939void psxBios_PAD_dr() { // 16
1940#ifdef PSXBIOS_LOG
1941 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1942#endif
1943
1944 v0 = -1; pc0 = ra;
1945}
1946
1947void psxBios_ReturnFromException() { // 17
1948 LoadRegs();
1949
1950 pc0 = psxRegs.CP0.n.EPC;
1951 if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1952
1953 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1954 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1955}
1956
1957void psxBios_ResetEntryInt() { // 18
1958#ifdef PSXBIOS_LOG
1959 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1960#endif
1961
1962 jmp_int = NULL;
1963 pc0 = ra;
1964}
1965
1966void psxBios_HookEntryInt() { // 19
1967#ifdef PSXBIOS_LOG
1968 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1969#endif
1970
1971 jmp_int = (u32*)Ra0;
1972 pc0 = ra;
1973}
1974
1975void psxBios_UnDeliverEvent() { // 0x20
1976 int ev, spec;
1977 int i;
1978
1979 GetEv();
1980 GetSpec();
1981
1982#ifdef PSXBIOS_LOG
1983 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1984#endif
1985
1986 if (Event[ev][spec].status == EvStALREADY &&
1987 Event[ev][spec].mode == EvMdNOINTR)
1988 Event[ev][spec].status = EvStACTIVE;
1989
1990 pc0 = ra;
1991}
1992
595a136b 1993char ffile[64], *pfile;
1994int nfile;
1995static void buopen(int mcd, u8 *ptr, u8 *cfg)
1996{
1997 int i;
1998 u8 *fptr = ptr;
1999
2000 strcpy(FDesc[1 + mcd].name, Ra0+5);
2001 FDesc[1 + mcd].offset = 0;
2002 FDesc[1 + mcd].mode = a1;
2003
2004 for (i=1; i<16; i++) {
2005 fptr += 128;
2006 if ((*fptr & 0xF0) != 0x50) continue;
2007 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
2008 FDesc[1 + mcd].mcfile = i;
2009 SysPrintf("open %s\n", fptr+0xa);
2010 v0 = 1 + mcd;
2011 break;
2012 }
2013 if (a1 & 0x200 && v0 == -1) { /* FCREAT */
2014 fptr = ptr;
2015 for (i=1; i<16; i++) {
2016 int j, xor, nblk = a1 >> 16;
2017 u8 *pptr, *fptr2;
2018
2019 fptr += 128;
2020 if ((*fptr & 0xF0) != 0xa0) continue;
2021
2022 FDesc[1 + mcd].mcfile = i;
2023 fptr[0] = 0x51;
2024 fptr[4] = 0x00;
2025 fptr[5] = 0x20 * nblk;
2026 fptr[6] = 0x00;
2027 fptr[7] = 0x00;
2028 strcpy(fptr+0xa, FDesc[1 + mcd].name);
2029 pptr = fptr2 = fptr;
2030 for(j=2; j<=nblk; j++) {
2031 int k;
2032 for(i++; i<16; i++) {
2033 fptr2 += 128;
2034
2035 memset(fptr2, 0, 128);
2036 fptr2[0] = j < nblk ? 0x52 : 0x53;
2037 pptr[8] = i - 1;
2038 pptr[9] = 0;
2039 for (k=0, xor=0; k<127; k++) xor^= pptr[k];
2040 pptr[127] = xor;
2041 pptr = fptr2;
2042 break;
2043 }
2044 /* shouldn't this return ENOSPC if i == 16? */
2045 }
2046 pptr[8] = pptr[9] = 0xff;
2047 for (j=0, xor=0; j<127; j++) xor^= pptr[j];
2048 pptr[127] = xor;
2049 SysPrintf("openC %s %d\n", ptr, nblk);
2050 v0 = 1 + mcd;
2051 /* just go ahead and resave them all */
2052 SaveMcd(cfg, ptr, 128, 128 * 15);
2053 break;
2054 }
2055 /* shouldn't this return ENOSPC if i == 16? */
2056 }
ef79bbde
P		 2057}
2058
2059/*
2060 * int open(char *name , int mode);
2061 */
2062
2063void psxBios_open() { // 0x32
2064 int i;
2065 char *ptr;
02949f79 2066 void *pa0 = Ra0;
ef79bbde
P		 2067
2068#ifdef PSXBIOS_LOG
2069 PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
2070#endif
2071
2072 v0 = -1;
2073
02949f79 2074 if (pa0) {
2075 if (!strncmp(pa0, "bu00", 4)) {
595a136b 2076 buopen(1, Mcd1Data, Config.Mcd1);
02949f79 2077 }
ef79bbde 2078
02949f79 2079 if (!strncmp(pa0, "bu10", 4)) {
595a136b 2080 buopen(2, Mcd2Data, Config.Mcd2);
02949f79 2081 }
ef79bbde
P		 2082 }
2083
2084 pc0 = ra;
2085}
2086
2087/*
2088 * int lseek(int fd , int offset , int whence);
2089 */
2090
2091void psxBios_lseek() { // 0x33
2092#ifdef PSXBIOS_LOG
2093 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2094#endif
2095
2096 switch (a2) {
2097 case 0: // SEEK_SET
2098 FDesc[a0].offset = a1;
2099 v0 = a1;
2100// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2101// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2102 break;
2103
2104 case 1: // SEEK_CUR
2105 FDesc[a0].offset+= a1;
2106 v0 = FDesc[a0].offset;
2107 break;
2108 }
2109
2110 pc0 = ra;
2111}
2112
595a136b 2113
ef79bbde
P		 2114/*
2115 * int read(int fd , void *buf , int nbytes);
2116 */
2117
2118void psxBios_read() { // 0x34
2119 char *ptr;
02949f79 2120 void *pa1 = Ra1;
ef79bbde
P		 2121
2122#ifdef PSXBIOS_LOG
2123 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2124#endif
2125
2126 v0 = -1;
2127
02949f79 2128 if (pa1) {
2129 switch (a0) {
595a136b 2130 case 2: buread(pa1, 1, a2); break;
2131 case 3: buread(pa1, 2, a2); break;
02949f79 2132 }
ef79bbde
P		 2133 }
2134
2135 pc0 = ra;
2136}
2137
ef79bbde
P		 2138/*
2139 * int write(int fd , void *buf , int nbytes);
2140 */
2141
2142void psxBios_write() { // 0x35/0x03
2143 char *ptr;
02949f79 2144 void *pa1 = Ra1;
2145
2146#ifdef PSXBIOS_LOG
2147 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2148#endif
2149
2150 v0 = -1;
2151 if (!pa1) {
2152 pc0 = ra;
2153 return;
2154 }
ef79bbde
P		 2155
2156 if (a0 == 1) { // stdout
02949f79 2157 char *ptr = pa1;
ef79bbde 2158
02949f79 2159 v0 = a2;
ef79bbde
P		 2160 while (a2 > 0) {
2161 SysPrintf("%c", *ptr++); a2--;
2162 }
2163 pc0 = ra; return;
2164 }
ef79bbde
P		 2165
2166 switch (a0) {
595a136b 2167 case 2: buwrite(pa1, 1, a2); break;
2168 case 3: buwrite(pa1, 2, a2); break;
ef79bbde
P		 2169 }
2170
2171 pc0 = ra;
2172}
2173
2174/*
2175 * int close(int fd);
2176 */
2177
2178void psxBios_close() { // 0x36
2179#ifdef PSXBIOS_LOG
2180 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2181#endif
2182
2183 v0 = a0;
2184 pc0 = ra;
2185}
2186
2187void psxBios_putchar() { // 3d
2188 SysPrintf("%c", (char)a0);
2189 pc0 = ra;
2190}
2191
2192void psxBios_puts() { // 3e/3f
808a13bd 2193 SysPrintf("%s", Ra0);
ef79bbde
P		 2194 pc0 = ra;
2195}
2196
2197char ffile[64], *pfile;
2198int nfile;
2199
2200#define bufile(mcd) { \
2201 while (nfile < 16) { \
2202 int match=1; \
2203 \
595a136b 2204 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
ef79bbde
P		 2205 nfile++; \
2206 if ((*ptr & 0xF0) != 0x50) continue; \
595a136b 2207 /* Bug link files show up as free block. */ \
2208 if (!ptr[0xa]) continue; \
ef79bbde
P		 2209 ptr+= 0xa; \
2210 if (pfile[0] == 0) { \
507d7c1d 2211 strncpy(dir->name, ptr, sizeof(dir->name)); \
2212 dir->name[sizeof(dir->name) - 1] = '\0'; \
ef79bbde
P		 2213 } else for (i=0; i<20; i++) { \
2214 if (pfile[i] == ptr[i]) { \
595a136b 2215 dir->name[i] = ptr[i]; continue; } \
ef79bbde
P		 2216 if (pfile[i] == '?') { \
2217 dir->name[i] = ptr[i]; continue; } \
2218 if (pfile[i] == '*') { \
2219 strcpy(dir->name+i, ptr+i); break; } \
2220 match = 0; break; \
2221 } \
2222 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
595a136b 2223 if (match == 0) { continue; } \
ef79bbde
P		 2224 dir->size = 8192; \
2225 v0 = _dir; \
2226 break; \
2227 } \
2228}
2229
2230/*
2231 * struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2232 */
2233
2234void psxBios_firstfile() { // 42
2235 struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
02949f79 2236 void *pa0 = Ra0;
ef79bbde
P		 2237 u32 _dir = a1;
2238 char *ptr;
2239 int i;
2240
2241#ifdef PSXBIOS_LOG
2242 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2243#endif
2244
2245 v0 = 0;
2246
02949f79 2247 if (pa0) {
2248 strcpy(ffile, pa0);
2249 pfile = ffile+5;
2250 nfile = 1;
2251 if (!strncmp(pa0, "bu00", 4)) {
857fabea 2252 // firstfile() calls _card_read() internally, so deliver it's event
2253 DeliverEvent(0x11, 0x2);
02949f79 2254 bufile(1);
2255 } else if (!strncmp(pa0, "bu10", 4)) {
857fabea 2256 // firstfile() calls _card_read() internally, so deliver it's event
2257 DeliverEvent(0x11, 0x2);
02949f79 2258 bufile(2);
2259 }
ef79bbde
P		 2260 }
2261
2262 pc0 = ra;
2263}
2264
2265/*
2266 * struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2267 */
2268
2269void psxBios_nextfile() { // 43
2270 struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2271 u32 _dir = a0;
2272 char *ptr;
2273 int i;
2274
2275#ifdef PSXBIOS_LOG
2276 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2277#endif
2278
2279 v0 = 0;
2280
2281 if (!strncmp(ffile, "bu00", 4)) {
2282 bufile(1);
2283 }
2284
2285 if (!strncmp(ffile, "bu10", 4)) {
2286 bufile(2);
2287 }
2288
2289 pc0 = ra;
2290}
2291
2292#define burename(mcd) { \
2293 for (i=1; i<16; i++) { \
2294 int namelen, j, xor = 0; \
2295 ptr = Mcd##mcd##Data + 128 * i; \
2296 if ((*ptr & 0xF0) != 0x50) continue; \
2297 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2298 namelen = strlen(Ra1+5); \
2299 memcpy(ptr+0xa, Ra1+5, namelen); \
2300 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2301 for (j=0; j<127; j++) xor^= ptr[j]; \
2302 ptr[127] = xor; \
2303 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2304 v0 = 1; \
2305 break; \
2306 } \
2307}
2308
2309/*
2310 * int rename(char *old, char *new);
2311 */
2312
2313void psxBios_rename() { // 44
02949f79 2314 void *pa0 = Ra0;
2315 void *pa1 = Ra1;
ef79bbde
P		 2316 char *ptr;
2317 int i;
2318
2319#ifdef PSXBIOS_LOG
2320 PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2321#endif
2322
2323 v0 = 0;
2324
02949f79 2325 if (pa0 && pa1) {
2326 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2327 burename(1);
2328 }
ef79bbde 2329
02949f79 2330 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2331 burename(2);
2332 }
ef79bbde
P		 2333 }
2334
2335 pc0 = ra;
2336}
2337
2338
2339#define budelete(mcd) { \
2340 for (i=1; i<16; i++) { \
2341 ptr = Mcd##mcd##Data + 128 * i; \
2342 if ((*ptr & 0xF0) != 0x50) continue; \
2343 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2344 *ptr = (*ptr & 0xf) | 0xA0; \
2345 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2346 SysPrintf("delete %s\n", ptr+0xa); \
2347 v0 = 1; \
2348 break; \
2349 } \
2350}
2351
2352/*
2353 * int delete(char *name);
2354 */
2355
2356void psxBios_delete() { // 45
02949f79 2357 void *pa0 = Ra0;
ef79bbde
P		 2358 char *ptr;
2359 int i;
2360
2361#ifdef PSXBIOS_LOG
2362 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2363#endif
2364
2365 v0 = 0;
2366
02949f79 2367 if (pa0) {
2368 if (!strncmp(pa0, "bu00", 4)) {
2369 budelete(1);
2370 }
ef79bbde 2371
02949f79 2372 if (!strncmp(pa0, "bu10", 4)) {
2373 budelete(2);
2374 }
ef79bbde
P		 2375 }
2376
2377 pc0 = ra;
2378}
2379
2380void psxBios_InitCARD() { // 4a
2381#ifdef PSXBIOS_LOG
2382 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2383#endif
2384
2385 CardState = 0;
2386
2387 pc0 = ra;
2388}
2389
2390void psxBios_StartCARD() { // 4b
2391#ifdef PSXBIOS_LOG
2392 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2393#endif
2394
2395 if (CardState == 0) CardState = 1;
2396
2397 pc0 = ra;
2398}
2399
2400void psxBios_StopCARD() { // 4c
2401#ifdef PSXBIOS_LOG
2402 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2403#endif
2404
2405 if (CardState == 1) CardState = 0;
2406
2407 pc0 = ra;
2408}
2409
2410void psxBios__card_write() { // 0x4e
02949f79 2411 void *pa2 = Ra2;
ef79bbde
P		 2412 int port;
2413
2414#ifdef PSXBIOS_LOG
2415 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2416#endif
bd48ba5e 2417 /* Function also accepts sector 400h (a bug) */
2418 if (!(a1 <= 0x400))
2419 {
2420 /* Invalid sectors */
2421 v0 = 0; pc0 = ra;
2422 return;
2423 }
e9fda093 2424 card_active_chan = a0;
ef79bbde
P		 2425 port = a0 >> 4;
2426
02949f79 2427 if (pa2) {
2428 if (port == 0) {
2429 memcpy(Mcd1Data + a1 * 128, pa2, 128);
2430 SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2431 } else {
2432 memcpy(Mcd2Data + a1 * 128, pa2, 128);
2433 SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2434 }
ef79bbde
P		 2435 }
2436
2437 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2438// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2439
2440 v0 = 1; pc0 = ra;
2441}
2442
2443void psxBios__card_read() { // 0x4f
02949f79 2444 void *pa2 = Ra2;
ef79bbde
P		 2445 int port;
2446
2447#ifdef PSXBIOS_LOG
2448 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2449#endif
bd48ba5e 2450 /* Function also accepts sector 400h (a bug) */
2451 if (!(a1 <= 0x400))
2452 {
2453 /* Invalid sectors */
2454 v0 = 0; pc0 = ra;
2455 return;
2456 }
e9fda093 2457 card_active_chan = a0;
ef79bbde
P		 2458 port = a0 >> 4;
2459
02949f79 2460 if (pa2) {
2461 if (port == 0) {
2462 memcpy(pa2, Mcd1Data + a1 * 128, 128);
2463 } else {
2464 memcpy(pa2, Mcd2Data + a1 * 128, 128);
2465 }
ef79bbde
P		 2466 }
2467
2468 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2469// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2470
2471 v0 = 1; pc0 = ra;
2472}
2473
2474void psxBios__new_card() { // 0x50
2475#ifdef PSXBIOS_LOG
2476 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2477#endif
2478
2479 pc0 = ra;
2480}
2481
002b2f7d 2482/* According to a user, this allows Final Fantasy Tactics to save/load properly */
2483void psxBios__get_error(void) // 55
2484{
2485 v0 = 0;
2486 pc0 = ra;
2487}
2488
ef79bbde
P		 2489void psxBios_Krom2RawAdd() { // 0x51
2490 int i = 0;
2491
2492 const u32 table_8140[][2] = {
2493 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2494 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2495 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2496 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2497 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2498 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2499 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2500 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2501 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2502 {0xffff, 0}
2503 };
2504
2505 const u32 table_889f[][2] = {
2506 {0x889f, 0x3d68}, {0x8900, 0x40ec}, {0x897f, 0x4fb0}, {0x8a00, 0x56f4},
2507 {0x8a7f, 0x65b8}, {0x8b00, 0x6cfc}, {0x8b7f, 0x7bc0}, {0x8c00, 0x8304},
2508 {0x8c7f, 0x91c8}, {0x8d00, 0x990c}, {0x8d7f, 0xa7d0}, {0x8e00, 0xaf14},
2509 {0x8e7f, 0xbdd8}, {0x8f00, 0xc51c}, {0x8f7f, 0xd3e0}, {0x9000, 0xdb24},
2510 {0x907f, 0xe9e8}, {0x9100, 0xf12c}, {0x917f, 0xfff0}, {0x9200, 0x10734},
2511 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2512 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2513 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2514 {0xffff, 0}
2515 };
2516
2517 if (a0 >= 0x8140 && a0 <= 0x84be) {
2518 while (table_8140[i][0] <= a0) i++;
2519 a0 -= table_8140[i - 1][0];
2520 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2521 } else if (a0 >= 0x889f && a0 <= 0x9872) {
2522 while (table_889f[i][0] <= a0) i++;
2523 a0 -= table_889f[i - 1][0];
2524 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2525 } else {
2526 v0 = 0xffffffff;
2527 }
2528
2529 pc0 = ra;
2530}
2531
2532void psxBios_GetC0Table() { // 56
2533#ifdef PSXBIOS_LOG
2534 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2535#endif
2536
2537 v0 = 0x674; pc0 = ra;
2538}
2539
2540void psxBios_GetB0Table() { // 57
2541#ifdef PSXBIOS_LOG
2542 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2543#endif
2544
2545 v0 = 0x874; pc0 = ra;
2546}
2547
e9fda093 2548void psxBios__card_chan() { // 0x58
2549#ifdef PSXBIOS_LOG
2550 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2551#endif
2552
2553 v0 = card_active_chan;
2554 pc0 = ra;
2555}
2556
ef79bbde
P		 2557void psxBios_ChangeClearPad() { // 5b
2558#ifdef PSXBIOS_LOG
2559 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2560#endif
2561
2562 pc0 = ra;
2563}
2564
2565/* System calls C0 */
2566
2567/*
2568 * int SysEnqIntRP(int index , long *queue);
2569 */
2570
2571void psxBios_SysEnqIntRP() { // 02
2572#ifdef PSXBIOS_LOG
2573 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2574#endif
2575
2576 SysIntRP[a0] = a1;
2577
2578 v0 = 0; pc0 = ra;
2579}
2580
2581/*
2582 * int SysDeqIntRP(int index , long *queue);
2583 */
2584
2585void psxBios_SysDeqIntRP() { // 03
2586#ifdef PSXBIOS_LOG
2587 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2588#endif
2589
2590 SysIntRP[a0] = 0;
2591
2592 v0 = 0; pc0 = ra;
2593}
2594
2595void psxBios_ChangeClearRCnt() { // 0a
2596 u32 *ptr;
2597
2598#ifdef PSXBIOS_LOG
2599 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2600#endif
2601
2602 ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2603 v0 = *ptr;
2604 *ptr = a1;
2605
2606// psxRegs.CP0.n.Status|= 0x404;
2607 pc0 = ra;
2608}
2609
2610void psxBios_dummy() {
2611#ifdef PSXBIOS_LOG
2612 PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2613#endif
2614 pc0 = ra;
2615}
2616
2617void (*biosA0[256])();
2618void (*biosB0[256])();
2619void (*biosC0[256])();
2620
2621#include "sjisfont.h"
2622
2623void psxBiosInit() {
2624 u32 base, size;
2625 u32 *ptr;
2626 int i;
2627 uLongf len;
2628
2629 for(i = 0; i < 256; i++) {
2630 biosA0[i] = NULL;
2631 biosB0[i] = NULL;
2632 biosC0[i] = NULL;
2633 }
2634 biosA0[0x3e] = psxBios_puts;
2635 biosA0[0x3f] = psxBios_printf;
2636
2637 biosB0[0x3d] = psxBios_putchar;
2638 biosB0[0x3f] = psxBios_puts;
2639
2640 if (!Config.HLE) return;
2641
2642 for(i = 0; i < 256; i++) {
2643 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2644 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2645 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2646 }
2647
2648 biosA0[0x00] = psxBios_open;
2649 biosA0[0x01] = psxBios_lseek;
2650 biosA0[0x02] = psxBios_read;
2651 biosA0[0x03] = psxBios_write;
2652 biosA0[0x04] = psxBios_close;
2653 //biosA0[0x05] = psxBios_ioctl;
2654 //biosA0[0x06] = psxBios_exit;
2655 //biosA0[0x07] = psxBios_sys_a0_07;
324cec89 2656 biosA0[0x08] = psxBios_getc;
2657 biosA0[0x09] = psxBios_putc;
ba11675c 2658 biosA0[0x0a] = psxBios_todigit;
ef79bbde
P		 2659 //biosA0[0x0b] = psxBios_atof;
2660 //biosA0[0x0c] = psxBios_strtoul;
2661 //biosA0[0x0d] = psxBios_strtol;
2662 biosA0[0x0e] = psxBios_abs;
2663 biosA0[0x0f] = psxBios_labs;
2664 biosA0[0x10] = psxBios_atoi;
2665 biosA0[0x11] = psxBios_atol;
2666 //biosA0[0x12] = psxBios_atob;
2667 biosA0[0x13] = psxBios_setjmp;
2668 biosA0[0x14] = psxBios_longjmp;
2669 biosA0[0x15] = psxBios_strcat;
2670 biosA0[0x16] = psxBios_strncat;
2671 biosA0[0x17] = psxBios_strcmp;
2672 biosA0[0x18] = psxBios_strncmp;
2673 biosA0[0x19] = psxBios_strcpy;
2674 biosA0[0x1a] = psxBios_strncpy;
2675 biosA0[0x1b] = psxBios_strlen;
2676 biosA0[0x1c] = psxBios_index;
2677 biosA0[0x1d] = psxBios_rindex;
2678 biosA0[0x1e] = psxBios_strchr;
2679 biosA0[0x1f] = psxBios_strrchr;
2680 biosA0[0x20] = psxBios_strpbrk;
2681 biosA0[0x21] = psxBios_strspn;
2682 biosA0[0x22] = psxBios_strcspn;
2683 biosA0[0x23] = psxBios_strtok;
2684 biosA0[0x24] = psxBios_strstr;
2685 biosA0[0x25] = psxBios_toupper;
2686 biosA0[0x26] = psxBios_tolower;
2687 biosA0[0x27] = psxBios_bcopy;
2688 biosA0[0x28] = psxBios_bzero;
2689 biosA0[0x29] = psxBios_bcmp;
2690 biosA0[0x2a] = psxBios_memcpy;
2691 biosA0[0x2b] = psxBios_memset;
2692 biosA0[0x2c] = psxBios_memmove;
2693 biosA0[0x2d] = psxBios_memcmp;
2694 biosA0[0x2e] = psxBios_memchr;
2695 biosA0[0x2f] = psxBios_rand;
2696 biosA0[0x30] = psxBios_srand;
2697 biosA0[0x31] = psxBios_qsort;
2698 //biosA0[0x32] = psxBios_strtod;
2699 biosA0[0x33] = psxBios_malloc;
2700 biosA0[0x34] = psxBios_free;
2701 //biosA0[0x35] = psxBios_lsearch;
2702 //biosA0[0x36] = psxBios_bsearch;
2703 biosA0[0x37] = psxBios_calloc;
2704 biosA0[0x38] = psxBios_realloc;
2705 biosA0[0x39] = psxBios_InitHeap;
2706 //biosA0[0x3a] = psxBios__exit;
2707 biosA0[0x3b] = psxBios_getchar;
2708 biosA0[0x3c] = psxBios_putchar;
2709 //biosA0[0x3d] = psxBios_gets;
2710 //biosA0[0x40] = psxBios_sys_a0_40;
2711 //biosA0[0x41] = psxBios_LoadTest;
2712 biosA0[0x42] = psxBios_Load;
2713 biosA0[0x43] = psxBios_Exec;
2714 biosA0[0x44] = psxBios_FlushCache;
2715 //biosA0[0x45] = psxBios_InstallInterruptHandler;
2716 biosA0[0x46] = psxBios_GPU_dw;
2717 biosA0[0x47] = psxBios_mem2vram;
2718 biosA0[0x48] = psxBios_SendGPU;
2719 biosA0[0x49] = psxBios_GPU_cw;
2720 biosA0[0x4a] = psxBios_GPU_cwb;
2721 biosA0[0x4b] = psxBios_GPU_SendPackets;
2722 biosA0[0x4c] = psxBios_sys_a0_4c;
2723 biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2724 //biosA0[0x4e] = psxBios_GPU_sync;
2725 //biosA0[0x4f] = psxBios_sys_a0_4f;
2726 //biosA0[0x50] = psxBios_sys_a0_50;
2727 biosA0[0x51] = psxBios_LoadExec;
2728 //biosA0[0x52] = psxBios_GetSysSp;
2729 //biosA0[0x53] = psxBios_sys_a0_53;
2730 //biosA0[0x54] = psxBios__96_init_a54;
2731 //biosA0[0x55] = psxBios__bu_init_a55;
2732 //biosA0[0x56] = psxBios__96_remove_a56;
2733 //biosA0[0x57] = psxBios_sys_a0_57;
2734 //biosA0[0x58] = psxBios_sys_a0_58;
2735 //biosA0[0x59] = psxBios_sys_a0_59;
2736 //biosA0[0x5a] = psxBios_sys_a0_5a;
2737 //biosA0[0x5b] = psxBios_dev_tty_init;
2738 //biosA0[0x5c] = psxBios_dev_tty_open;
2739 //biosA0[0x5d] = psxBios_sys_a0_5d;
2740 //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2741 //biosA0[0x5f] = psxBios_dev_cd_open;
2742 //biosA0[0x60] = psxBios_dev_cd_read;
2743 //biosA0[0x61] = psxBios_dev_cd_close;
2744 //biosA0[0x62] = psxBios_dev_cd_firstfile;
2745 //biosA0[0x63] = psxBios_dev_cd_nextfile;
2746 //biosA0[0x64] = psxBios_dev_cd_chdir;
2747 //biosA0[0x65] = psxBios_dev_card_open;
2748 //biosA0[0x66] = psxBios_dev_card_read;
2749 //biosA0[0x67] = psxBios_dev_card_write;
2750 //biosA0[0x68] = psxBios_dev_card_close;
2751 //biosA0[0x69] = psxBios_dev_card_firstfile;
2752 //biosA0[0x6a] = psxBios_dev_card_nextfile;
2753 //biosA0[0x6b] = psxBios_dev_card_erase;
2754 //biosA0[0x6c] = psxBios_dev_card_undelete;
2755 //biosA0[0x6d] = psxBios_dev_card_format;
2756 //biosA0[0x6e] = psxBios_dev_card_rename;
2757 //biosA0[0x6f] = psxBios_dev_card_6f;
2758 biosA0[0x70] = psxBios__bu_init;
2759 biosA0[0x71] = psxBios__96_init;
2760 biosA0[0x72] = psxBios__96_remove;
2761 //biosA0[0x73] = psxBios_sys_a0_73;
2762 //biosA0[0x74] = psxBios_sys_a0_74;
2763 //biosA0[0x75] = psxBios_sys_a0_75;
2764 //biosA0[0x76] = psxBios_sys_a0_76;
2765 //biosA0[0x77] = psxBios_sys_a0_77;
2766 //biosA0[0x78] = psxBios__96_CdSeekL;
2767 //biosA0[0x79] = psxBios_sys_a0_79;
2768 //biosA0[0x7a] = psxBios_sys_a0_7a;
2769 //biosA0[0x7b] = psxBios_sys_a0_7b;
2770 //biosA0[0x7c] = psxBios__96_CdGetStatus;
2771 //biosA0[0x7d] = psxBios_sys_a0_7d;
2772 //biosA0[0x7e] = psxBios__96_CdRead;
2773 //biosA0[0x7f] = psxBios_sys_a0_7f;
2774 //biosA0[0x80] = psxBios_sys_a0_80;
2775 //biosA0[0x81] = psxBios_sys_a0_81;
2776 //biosA0[0x82] = psxBios_sys_a0_82;
2777 //biosA0[0x83] = psxBios_sys_a0_83;
2778 //biosA0[0x84] = psxBios_sys_a0_84;
2779 //biosA0[0x85] = psxBios__96_CdStop;
2780 //biosA0[0x86] = psxBios_sys_a0_86;
2781 //biosA0[0x87] = psxBios_sys_a0_87;
2782 //biosA0[0x88] = psxBios_sys_a0_88;
2783 //biosA0[0x89] = psxBios_sys_a0_89;
2784 //biosA0[0x8a] = psxBios_sys_a0_8a;
2785 //biosA0[0x8b] = psxBios_sys_a0_8b;
2786 //biosA0[0x8c] = psxBios_sys_a0_8c;
2787 //biosA0[0x8d] = psxBios_sys_a0_8d;
2788 //biosA0[0x8e] = psxBios_sys_a0_8e;
2789 //biosA0[0x8f] = psxBios_sys_a0_8f;
2790 //biosA0[0x90] = psxBios_sys_a0_90;
2791 //biosA0[0x91] = psxBios_sys_a0_91;
2792 //biosA0[0x92] = psxBios_sys_a0_92;
2793 //biosA0[0x93] = psxBios_sys_a0_93;
2794 //biosA0[0x94] = psxBios_sys_a0_94;
2795 //biosA0[0x95] = psxBios_sys_a0_95;
2796 //biosA0[0x96] = psxBios_AddCDROMDevice;
2797 //biosA0[0x97] = psxBios_AddMemCardDevide;
2798 //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2799 //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2800 //biosA0[0x9a] = psxBios_sys_a0_9a;
2801 //biosA0[0x9b] = psxBios_sys_a0_9b;
2802 //biosA0[0x9c] = psxBios_SetConf;
2803 //biosA0[0x9d] = psxBios_GetConf;
2804 //biosA0[0x9e] = psxBios_sys_a0_9e;
2805 biosA0[0x9f] = psxBios_SetMem;
2806 //biosA0[0xa0] = psxBios__boot;
2807 //biosA0[0xa1] = psxBios_SystemError;
2808 //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2809 //biosA0[0xa3] = psxBios_DequeueCdIntr;
2810 //biosA0[0xa4] = psxBios_sys_a0_a4;
2811 //biosA0[0xa5] = psxBios_ReadSector;
2812 //biosA0[0xa6] = psxBios_get_cd_status;
2813 //biosA0[0xa7] = psxBios_bufs_cb_0;
2814 //biosA0[0xa8] = psxBios_bufs_cb_1;
2815 //biosA0[0xa9] = psxBios_bufs_cb_2;
2816 //biosA0[0xaa] = psxBios_bufs_cb_3;
2817 biosA0[0xab] = psxBios__card_info;
2818 biosA0[0xac] = psxBios__card_load;
2819 //biosA0[0axd] = psxBios__card_auto;
2820 //biosA0[0xae] = psxBios_bufs_cd_4;
2821 //biosA0[0xaf] = psxBios_sys_a0_af;
2822 //biosA0[0xb0] = psxBios_sys_a0_b0;
2823 //biosA0[0xb1] = psxBios_sys_a0_b1;
2824 //biosA0[0xb2] = psxBios_do_a_long_jmp
2825 //biosA0[0xb3] = psxBios_sys_a0_b3;
2826 //biosA0[0xb4] = psxBios_sub_function;
2827//*******************B0 CALLS****************************
2828 //biosB0[0x00] = psxBios_SysMalloc;
2829 //biosB0[0x01] = psxBios_sys_b0_01;
2830 biosB0[0x02] = psxBios_SetRCnt;
2831 biosB0[0x03] = psxBios_GetRCnt;
2832 biosB0[0x04] = psxBios_StartRCnt;
2833 biosB0[0x05] = psxBios_StopRCnt;
2834 biosB0[0x06] = psxBios_ResetRCnt;
2835 biosB0[0x07] = psxBios_DeliverEvent;
2836 biosB0[0x08] = psxBios_OpenEvent;
2837 biosB0[0x09] = psxBios_CloseEvent;
2838 biosB0[0x0a] = psxBios_WaitEvent;
2839 biosB0[0x0b] = psxBios_TestEvent;
2840 biosB0[0x0c] = psxBios_EnableEvent;
2841 biosB0[0x0d] = psxBios_DisableEvent;
2842 biosB0[0x0e] = psxBios_OpenTh;
2843 biosB0[0x0f] = psxBios_CloseTh;
2844 biosB0[0x10] = psxBios_ChangeTh;
2845 //biosB0[0x11] = psxBios_psxBios_b0_11;
2846 biosB0[0x12] = psxBios_InitPAD;
2847 biosB0[0x13] = psxBios_StartPAD;
2848 biosB0[0x14] = psxBios_StopPAD;
2849 biosB0[0x15] = psxBios_PAD_init;
2850 biosB0[0x16] = psxBios_PAD_dr;
2851 biosB0[0x17] = psxBios_ReturnFromException;
2852 biosB0[0x18] = psxBios_ResetEntryInt;
2853 biosB0[0x19] = psxBios_HookEntryInt;
2854 //biosB0[0x1a] = psxBios_sys_b0_1a;
2855 //biosB0[0x1b] = psxBios_sys_b0_1b;
2856 //biosB0[0x1c] = psxBios_sys_b0_1c;
2857 //biosB0[0x1d] = psxBios_sys_b0_1d;
2858 //biosB0[0x1e] = psxBios_sys_b0_1e;
2859 //biosB0[0x1f] = psxBios_sys_b0_1f;
2860 biosB0[0x20] = psxBios_UnDeliverEvent;
2861 //biosB0[0x21] = psxBios_sys_b0_21;
2862 //biosB0[0x22] = psxBios_sys_b0_22;
2863 //biosB0[0x23] = psxBios_sys_b0_23;
2864 //biosB0[0x24] = psxBios_sys_b0_24;
2865 //biosB0[0x25] = psxBios_sys_b0_25;
2866 //biosB0[0x26] = psxBios_sys_b0_26;
2867 //biosB0[0x27] = psxBios_sys_b0_27;
2868 //biosB0[0x28] = psxBios_sys_b0_28;
2869 //biosB0[0x29] = psxBios_sys_b0_29;
2870 //biosB0[0x2a] = psxBios_sys_b0_2a;
2871 //biosB0[0x2b] = psxBios_sys_b0_2b;
2872 //biosB0[0x2c] = psxBios_sys_b0_2c;
2873 //biosB0[0x2d] = psxBios_sys_b0_2d;
2874 //biosB0[0x2e] = psxBios_sys_b0_2e;
2875 //biosB0[0x2f] = psxBios_sys_b0_2f;
2876 //biosB0[0x30] = psxBios_sys_b0_30;
2877 //biosB0[0x31] = psxBios_sys_b0_31;
2878 biosB0[0x32] = psxBios_open;
2879 biosB0[0x33] = psxBios_lseek;
2880 biosB0[0x34] = psxBios_read;
2881 biosB0[0x35] = psxBios_write;
2882 biosB0[0x36] = psxBios_close;
2883 //biosB0[0x37] = psxBios_ioctl;
2884 //biosB0[0x38] = psxBios_exit;
2885 //biosB0[0x39] = psxBios_sys_b0_39;
2886 //biosB0[0x3a] = psxBios_getc;
2887 //biosB0[0x3b] = psxBios_putc;
2888 biosB0[0x3c] = psxBios_getchar;
2889 //biosB0[0x3e] = psxBios_gets;
2890 //biosB0[0x40] = psxBios_cd;
e7e1f572 2891 biosB0[0x41] = psxBios_format;
ef79bbde
P		 2892 biosB0[0x42] = psxBios_firstfile;
2893 biosB0[0x43] = psxBios_nextfile;
2894 biosB0[0x44] = psxBios_rename;
2895 biosB0[0x45] = psxBios_delete;
2896 //biosB0[0x46] = psxBios_undelete;
2897 //biosB0[0x47] = psxBios_AddDevice;
2898 //biosB0[0x48] = psxBios_RemoteDevice;
2899 //biosB0[0x49] = psxBios_PrintInstalledDevices;
2900 biosB0[0x4a] = psxBios_InitCARD;
2901 biosB0[0x4b] = psxBios_StartCARD;
2902 biosB0[0x4c] = psxBios_StopCARD;
2903 //biosB0[0x4d] = psxBios_sys_b0_4d;
2904 biosB0[0x4e] = psxBios__card_write;
2905 biosB0[0x4f] = psxBios__card_read;
2906 biosB0[0x50] = psxBios__new_card;
2907 biosB0[0x51] = psxBios_Krom2RawAdd;
2908 //biosB0[0x52] = psxBios_sys_b0_52;
2909 //biosB0[0x53] = psxBios_sys_b0_53;
2910 //biosB0[0x54] = psxBios__get_errno;
002b2f7d 2911 biosB0[0x55] = psxBios__get_error;
ef79bbde
P		 2912 biosB0[0x56] = psxBios_GetC0Table;
2913 biosB0[0x57] = psxBios_GetB0Table;
e9fda093 2914 biosB0[0x58] = psxBios__card_chan;
ef79bbde
P		 2915 //biosB0[0x59] = psxBios_sys_b0_59;
2916 //biosB0[0x5a] = psxBios_sys_b0_5a;
2917 biosB0[0x5b] = psxBios_ChangeClearPad;
2918 //biosB0[0x5c] = psxBios__card_status;
2919 //biosB0[0x5d] = psxBios__card_wait;
2920//*******************C0 CALLS****************************
2921 //biosC0[0x00] = psxBios_InitRCnt;
2922 //biosC0[0x01] = psxBios_InitException;
2923 biosC0[0x02] = psxBios_SysEnqIntRP;
2924 biosC0[0x03] = psxBios_SysDeqIntRP;
2925 //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2926 //biosC0[0x05] = psxBios_get_free_TCB_slot;
2927 //biosC0[0x06] = psxBios_ExceptionHandler;
2928 //biosC0[0x07] = psxBios_InstallExeptionHandler;
2929 //biosC0[0x08] = psxBios_SysInitMemory;
2930 //biosC0[0x09] = psxBios_SysInitKMem;
2931 biosC0[0x0a] = psxBios_ChangeClearRCnt;
2932 //biosC0[0x0b] = psxBios_SystemError;
2933 //biosC0[0x0c] = psxBios_InitDefInt;
2934 //biosC0[0x0d] = psxBios_sys_c0_0d;
2935 //biosC0[0x0e] = psxBios_sys_c0_0e;
2936 //biosC0[0x0f] = psxBios_sys_c0_0f;
2937 //biosC0[0x10] = psxBios_sys_c0_10;
2938 //biosC0[0x11] = psxBios_sys_c0_11;
2939 //biosC0[0x12] = psxBios_InstallDevices;
2940 //biosC0[0x13] = psxBios_FlushStfInOutPut;
2941 //biosC0[0x14] = psxBios_sys_c0_14;
2942 //biosC0[0x15] = psxBios__cdevinput;
2943 //biosC0[0x16] = psxBios__cdevscan;
2944 //biosC0[0x17] = psxBios__circgetc;
2945 //biosC0[0x18] = psxBios__circputc;
2946 //biosC0[0x19] = psxBios_ioabort;
2947 //biosC0[0x1a] = psxBios_sys_c0_1a
2948 //biosC0[0x1b] = psxBios_KernelRedirect;
2949 //biosC0[0x1c] = psxBios_PatchAOTable;
2950//************** THE END ***************************************
2951/**/
2952 base = 0x1000;
2953 size = sizeof(EvCB) * 32;
2954 Event = (void *)&psxR[base]; base += size * 6;
2955 memset(Event, 0, size * 6);
2956 HwEV = Event;
2957 EvEV = Event + 32;
2958 RcEV = Event + 32 * 2;
2959 UeEV = Event + 32 * 3;
2960 SwEV = Event + 32 * 4;
2961 ThEV = Event + 32 * 5;
2962
2963 ptr = (u32 *)&psxM[0x0874]; // b0 table
2964 ptr[0] = SWAPu32(0x4c54 - 0x884);
2965
2966 ptr = (u32 *)&psxM[0x0674]; // c0 table
2967 ptr[6] = SWAPu32(0xc80);
2968
2969 memset(SysIntRP, 0, sizeof(SysIntRP));
2970 memset(Thread, 0, sizeof(Thread));
2971 Thread[0].status = 2; // main thread
2972
c62b43c9 2973 jmp_int = NULL;
2974 pad_buf = NULL;
2975 pad_buf1 = NULL;
2976 pad_buf2 = NULL;
2977 pad_buf1len = pad_buf2len = 0;
2978 heap_addr = NULL;
2979 heap_end = NULL;
26b964b5 2980 heap_size = 0;
c62b43c9 2981 CardState = -1;
2982 CurThread = 0;
2983 memset(FDesc, 0, sizeof(FDesc));
2984
ef79bbde
P		 2985 psxMu32ref(0x0150) = SWAPu32(0x160);
2986 psxMu32ref(0x0154) = SWAPu32(0x320);
2987 psxMu32ref(0x0160) = SWAPu32(0x248);
2988 strcpy((char *)&psxM[0x248], "bu");
2989/* psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
2990 psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
2991 psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
2992 psxMu32ref(0x09e0) = SWAPu32(0x43d0);
2993 psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
2994*/
2995 // opcode HLE
2996 psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
2997 psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
2998 psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
2999 psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
3000 psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
3001 psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
3002 psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
3003 psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
3004 psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
3005 psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
3006
3007 // initial stack pointer for BIOS interrupt
3008 psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
3009
3010 // initial RNG seed
3011 psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
3012
3013 // fonts
3014 len = 0x80000 - 0x66000;
3015 uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
3016 len = 0x80000 - 0x69d68;
3017 uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
3018
3019 // memory size 2 MB
3020 psxHu32ref(0x1060) = SWAPu32(0x00000b88);
3021
3022 hleSoftCall = FALSE;
3023}
3024
3025void psxBiosShutdown() {
3026}
3027
3028#define psxBios_PADpoll(pad) { \
3029 PAD##pad##_startPoll(pad); \
3030 pad_buf##pad[0] = 0; \
3031 pad_buf##pad[1] = PAD##pad##_poll(0x42); \
3032 if (!(pad_buf##pad[1] & 0x0f)) { \
3033 bufcount = 32; \
3034 } else { \
3035 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
3036 } \
3037 PAD##pad##_poll(0); \
3038 i = 2; \
3039 while (bufcount--) { \
3040 pad_buf##pad[i++] = PAD##pad##_poll(0); \
3041 } \
3042}
3043
3044void biosInterrupt() {
3045 int i, bufcount;
3046
3047// if (psxHu32(0x1070) & 0x1) { // Vsync
3048 if (pad_buf != NULL) {
3049 u32 *buf = (u32*)pad_buf;
3050
3051 if (!Config.UseNet) {
3052 PAD1_startPoll(1);
3053 if (PAD1_poll(0x42) == 0x23) {
3054 PAD1_poll(0);
3055 *buf = PAD1_poll(0) << 8;
3056 *buf |= PAD1_poll(0);
3057 PAD1_poll(0);
3058 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
3059 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
3060 } else {
3061 PAD1_poll(0);
3062 *buf = PAD1_poll(0) << 8;
3063 *buf|= PAD1_poll(0);
3064 }
3065
3066 PAD2_startPoll(2);
3067 if (PAD2_poll(0x42) == 0x23) {
3068 PAD2_poll(0);
3069 *buf |= PAD2_poll(0) << 24;
3070 *buf |= PAD2_poll(0) << 16;
3071 PAD2_poll(0);
3072 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
3073 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
3074 } else {
3075 PAD2_poll(0);
3076 *buf |= PAD2_poll(0) << 24;
3077 *buf |= PAD2_poll(0) << 16;
3078 }
3079 } else {
3080 u16 data;
3081
3082 PAD1_startPoll(1);
3083 PAD1_poll(0x42);
3084 PAD1_poll(0);
3085 data = PAD1_poll(0) << 8;
3086 data |= PAD1_poll(0);
3087
3088 if (NET_sendPadData(&data, 2) == -1)
3089 netError();
3090
3091 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
3092 netError();
3093 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3094 netError();
3095 }
3096 }
3097 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3098 psxBios_PADpoll(1);
3099
3100 if (NET_sendPadData(pad_buf1, i) == -1)
3101 netError();
3102
3103 if (NET_recvPadData(pad_buf1, 1) == -1)
3104 netError();
3105 if (NET_recvPadData(pad_buf2, 2) == -1)
3106 netError();
3107 } else {
3108 if (pad_buf1) {
3109 psxBios_PADpoll(1);
3110 }
3111
3112 if (pad_buf2) {
3113 psxBios_PADpoll(2);
3114 }
3115 }
3116
3117 if (psxHu32(0x1070) & 0x1) { // Vsync
3118 if (RcEV[3][1].status == EvStACTIVE) {
3119 softCall(RcEV[3][1].fhandler);
3120// hwWrite32(0x1f801070, ~(1));
3121 }
3122 }
3123
3124 if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3125 int i;
3126
3127 for (i = 0; i < 3; i++) {
3128 if (psxHu32(0x1070) & (1 << (i + 4))) {
3129 if (RcEV[i][1].status == EvStACTIVE) {
3130 softCall(RcEV[i][1].fhandler);
3131 }
3132 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3133 }
3134 }
3135 }
3136}
3137
3138void psxBiosException() {
3139 int i;
3140
3141 switch (psxRegs.CP0.n.Cause & 0x3c) {
3142 case 0x00: // Interrupt
3143#ifdef PSXCPU_LOG
3144// PSXCPU_LOG("interrupt\n");
3145#endif
3146 SaveRegs();
3147
3148 sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3149
3150 biosInterrupt();
3151
3152 for (i = 0; i < 8; i++) {
3153 if (SysIntRP[i]) {
3154 u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3155
3156 s0 = queue[2];
3157 softCall(queue[1]);
3158 }
3159 }
3160
3161 if (jmp_int != NULL) {
3162 int i;
3163
3164 psxHwWrite32(0x1f801070, 0xffffffff);
3165
3166 ra = jmp_int[0];
3167 sp = jmp_int[1];
3168 fp = jmp_int[2];
3169 for (i = 0; i < 8; i++) // s0-s7
3170 psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3171 gp = jmp_int[11];
3172
3173 v0 = 1;
3174 pc0 = ra;
3175 return;
3176 }
3177 psxHwWrite16(0x1f801070, 0);
3178 break;
3179
3180 case 0x20: // Syscall
3181#ifdef PSXCPU_LOG
3182 PSXCPU_LOG("syscall exp %x\n", a0);
3183#endif
3184 switch (a0) {
3185 case 1: // EnterCritical - disable irq's
79dad1b3 3186 /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3187 v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3188 psxRegs.CP0.n.Status &= ~0x404;
ef79bbde
P		 3189 break;
3190
3191 case 2: // ExitCritical - enable irq's
3192 psxRegs.CP0.n.Status |= 0x404;
3193 break;
3194 }
3195 pc0 = psxRegs.CP0.n.EPC + 4;
3196
3197 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3198 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3199 return;
3200
3201 default:
3202#ifdef PSXCPU_LOG
3203 PSXCPU_LOG("unknown bios exception!\n");
3204#endif
3205 break;
3206 }
3207
3208 pc0 = psxRegs.CP0.n.EPC;
3209 if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3210
3211 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3212 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3213}
3214
3215#define bfreeze(ptr, size) { \
3216 if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3217 if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3218 base += size; \
3219}
3220
3221#define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3222#define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3223
3224#define bfreezepsxMptr(ptr, type) { \
3225 if (Mode == 1) { \
3226 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3227 else psxRu32ref(base) = 0; \
3228 } else { \
3229 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3230 else (ptr) = NULL; \
3231 } \
3232 base += sizeof(u32); \
3233}
3234
3235void psxBiosFreeze(int Mode) {
3236 u32 base = 0x40000;
3237
3238 bfreezepsxMptr(jmp_int, u32);
3239 bfreezepsxMptr(pad_buf, int);
3240 bfreezepsxMptr(pad_buf1, char);
3241 bfreezepsxMptr(pad_buf2, char);
3242 bfreezepsxMptr(heap_addr, u32);
3243 bfreezel(&pad_buf1len);
3244 bfreezel(&pad_buf2len);
3245 bfreezes(regs);
3246 bfreezes(SysIntRP);
3247 bfreezel(&CardState);
3248 bfreezes(Thread);
3249 bfreezel(&CurThread);
3250 bfreezes(FDesc);
e9fda093 3251 bfreezel(&card_active_chan);
ef79bbde 3252}
ARM optimized PCSX fork