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