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psxbios: Add todigit implementation
[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
257static u32 *heap_addr = NULL;
258static u32 *heap_end = NULL;
259static u32 SysIntRP[8];
260static int CardState = -1;
261static TCB Thread[8];
262static int CurThread = 0;
263static FileDesc FDesc[32];
e9fda093 264static u32 card_active_chan;
ef79bbde
P		 265
266boolean hleSoftCall = FALSE;
267
268static inline void softCall(u32 pc) {
269 pc0 = pc;
270 ra = 0x80001000;
271
272 hleSoftCall = TRUE;
273
274 while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
275
276 hleSoftCall = FALSE;
277}
278
279static inline void softCall2(u32 pc) {
280 u32 sra = ra;
281 pc0 = pc;
282 ra = 0x80001000;
283
284 hleSoftCall = TRUE;
285
286 while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
287 ra = sra;
288
289 hleSoftCall = FALSE;
290}
291
292static inline void DeliverEvent(u32 ev, u32 spec) {
293 if (Event[ev][spec].status != EvStACTIVE) return;
294
295// Event[ev][spec].status = EvStALREADY;
296 if (Event[ev][spec].mode == EvMdINTR) {
297 softCall2(Event[ev][spec].fhandler);
298 } else Event[ev][spec].status = EvStALREADY;
299}
300
301static inline void SaveRegs() {
302 memcpy(regs, psxRegs.GPR.r, 32*4);
303 regs[32] = psxRegs.GPR.n.lo;
304 regs[33] = psxRegs.GPR.n.hi;
305 regs[34] = psxRegs.pc;
306}
307
308static inline void LoadRegs() {
309 memcpy(psxRegs.GPR.r, regs, 32*4);
310 psxRegs.GPR.n.lo = regs[32];
311 psxRegs.GPR.n.hi = regs[33];
312}
313
314/* *
315// *
316// *
317// System calls A0 */
318
324cec89 319/* Internally redirects to "FileRead(fd,tempbuf,1)".*/
320/* For some strange reason, the returned character is sign-expanded; */
321/* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
322/* TODO FIX ME : Properly implement this behaviour */
323void psxBios_getc(void) // 0x03, 0x35
324{
325 void *pa1 = Ra1;
326#ifdef PSXBIOS_LOG
327 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
328#endif
329 v0 = -1;
330
331 if (pa1) {
332 switch (a0) {
333 case 2: buread(pa1, 1, 1); break;
334 case 3: buread(pa1, 2, 1); break;
335 }
336 }
337
338 pc0 = ra;
339}
340
341/* Copy of psxBios_write, except size is 1. */
342void psxBios_putc(void) // 0x09, 0x3B
343{
344 void *pa1 = Ra1;
345#ifdef PSXBIOS_LOG
346 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
347#endif
348 v0 = -1;
349 if (!pa1) {
350 pc0 = ra;
351 return;
352 }
353
354 if (a0 == 1) { // stdout
355 char *ptr = (char *)pa1;
356
357 v0 = a2;
358 while (a2 > 0) {
359 printf("%c", *ptr++); a2--;
360 }
361 pc0 = ra; return;
362 }
363
364 switch (a0) {
365 case 2: buwrite(pa1, 1, 1); break;
366 case 3: buwrite(pa1, 2, 1); break;
367 }
368
369 pc0 = ra;
370}
ef79bbde 371
ba11675c 372void psxBios_todigit(void) // 0x0a
373{
374 int c = a0;
375#ifdef PSXBIOS_LOG
376 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
377#endif
378 c &= 0xFF;
379 if (c >= 0x30 && c < 0x3A) {
380 c -= 0x30;
381 }
382 else if (c > 0x60 && c < 0x7B) {
383 c -= 0x20;
384 }
385 else if (c > 0x40 && c < 0x5B) {
386 c = c - 0x41 + 10;
387 }
388 else if (c >= 0x80) {
389 c = -1;
390 }
391 else
392 {
393 c = 0x0098967F;
394 }
395 v0 = c;
396 pc0 = ra;
397}
398
ef79bbde
P		 399void psxBios_abs() { // 0x0e
400 if ((s32)a0 < 0) v0 = -(s32)a0;
401 else v0 = a0;
402 pc0 = ra;
403}
404
405void psxBios_labs() { // 0x0f
406 psxBios_abs();
407}
408
409void psxBios_atoi() { // 0x10
410 s32 n = 0, f = 0;
411 char *p = (char *)Ra0;
412
413 for (;;p++) {
414 switch (*p) {
415 case ' ': case '\t': continue;
416 case '-': f++;
417 case '+': p++;
418 }
419 break;
420 }
421
422 while (*p >= '0' && *p <= '9') {
423 n = n * 10 + *p++ - '0';
424 }
425
426 v0 = (f ? -n : n);
427 pc0 = ra;
428}
429
430void psxBios_atol() { // 0x11
431 psxBios_atoi();
432}
433
434void psxBios_setjmp() { // 0x13
435 u32 *jmp_buf = (u32 *)Ra0;
436 int i;
437
438#ifdef PSXBIOS_LOG
439 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
440#endif
441
442 jmp_buf[0] = ra;
443 jmp_buf[1] = sp;
444 jmp_buf[2] = fp;
445 for (i = 0; i < 8; i++) // s0-s7
446 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
447 jmp_buf[11] = gp;
448
449 v0 = 0; pc0 = ra;
450}
451
452void psxBios_longjmp() { // 0x14
453 u32 *jmp_buf = (u32 *)Ra0;
454 int i;
455
456#ifdef PSXBIOS_LOG
457 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
458#endif
459
460 ra = jmp_buf[0]; /* ra */
461 sp = jmp_buf[1]; /* sp */
462 fp = jmp_buf[2]; /* fp */
463 for (i = 0; i < 8; i++) // s0-s7
464 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
465 gp = jmp_buf[11]; /* gp */
466
467 v0 = a1; pc0 = ra;
468}
469
470void psxBios_strcat() { // 0x15
471 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
472
473#ifdef PSXBIOS_LOG
474 PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
475#endif
bee52312 476 if (a0 == 0 || a1 == 0)
477 {
478 v0 = 0;
479 pc0 = ra;
480 return;
481 }
ef79bbde
P		 482 while (*p1++);
483 --p1;
484 while ((*p1++ = *p2++) != '\0');
485
486 v0 = a0; pc0 = ra;
487}
488
489void psxBios_strncat() { // 0x16
490 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
491 s32 n = a2;
492
493#ifdef PSXBIOS_LOG
494 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
495#endif
496
497 while (*p1++);
498 --p1;
499 while ((*p1++ = *p2++) != '\0') {
500 if (--n < 0) {
501 *--p1 = '\0';
502 break;
503 }
504 }
505
506 v0 = a0; pc0 = ra;
507}
508
509void psxBios_strcmp() { // 0x17
510 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
511
512#ifdef PSXBIOS_LOG
513 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
514#endif
515
516 while (*p1 == *p2++) {
517 if (*p1++ == '\0') {
518 v0 = 0;
519 pc0 = ra;
520 return;
521 }
522 }
523
524 v0 = (*p1 - *--p2);
525 pc0 = ra;
526}
527
528void psxBios_strncmp() { // 0x18
529 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
530 s32 n = a2;
531
532#ifdef PSXBIOS_LOG
533 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
534#endif
535
536 while (--n >= 0 && *p1 == *p2++) {
537 if (*p1++ == '\0') {
538 v0 = 0;
539 pc0 = ra;
540 return;
541 }
542 }
543
544 v0 = (n < 0 ? 0 : *p1 - *--p2);
545 pc0 = ra;
546}
547
548void psxBios_strcpy() { // 0x19
549 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
550 while ((*p1++ = *p2++) != '\0');
551
552 v0 = a0; pc0 = ra;
553}
554
555void psxBios_strncpy() { // 0x1a
556 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
557 s32 n = a2, i;
558
559 for (i = 0; i < n; i++) {
560 if ((*p1++ = *p2++) == '\0') {
561 while (++i < n) {
562 *p1++ = '\0';
563 }
564 v0 = a0; pc0 = ra;
565 return;
566 }
567 }
568
569 v0 = a0; pc0 = ra;
570}
571
572void psxBios_strlen() { // 0x1b
573 char *p = (char *)Ra0;
574 v0 = 0;
575 while (*p++) v0++;
576 pc0 = ra;
577}
578
579void psxBios_index() { // 0x1c
580 char *p = (char *)Ra0;
581
582 do {
583 if (*p == a1) {
584 v0 = a0 + (p - (char *)Ra0);
585 pc0 = ra;
586 return;
587 }
588 } while (*p++ != '\0');
589
590 v0 = 0; pc0 = ra;
591}
592
593void psxBios_rindex() { // 0x1d
594 char *p = (char *)Ra0;
595
596 v0 = 0;
597
598 do {
599 if (*p == a1)
600 v0 = a0 + (p - (char *)Ra0);
601 } while (*p++ != '\0');
602
603 pc0 = ra;
604}
605
606void psxBios_strchr() { // 0x1e
607 psxBios_index();
608}
609
610void psxBios_strrchr() { // 0x1f
611 psxBios_rindex();
612}
613
614void psxBios_strpbrk() { // 0x20
615 char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
616
617 while ((c = *p1++) != '\0') {
618 for (scanp = p2; (sc = *scanp++) != '\0';) {
619 if (sc == c) {
620 v0 = a0 + (p1 - 1 - (char *)Ra0);
621 pc0 = ra;
622 return;
623 }
624 }
625 }
626
627 // BUG: return a0 instead of NULL if not found
628 v0 = a0; pc0 = ra;
629}
630
631void psxBios_strspn() { // 0x21
632 char *p1, *p2;
633
634 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
635 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
636 if (*p2 == '\0') break;
637 }
638
639 v0 = p1 - (char *)Ra0; pc0 = ra;
640}
641
642void psxBios_strcspn() { // 0x22
643 char *p1, *p2;
644
645 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
646 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
647 if (*p2 != '\0') break;
648 }
649
650 v0 = p1 - (char *)Ra0; pc0 = ra;
651}
652
653void psxBios_strtok() { // 0x23
654 char *pcA0 = (char *)Ra0;
655 char *pcRet = strtok(pcA0, (char *)Ra1);
656 if (pcRet)
657 v0 = a0 + pcRet - pcA0;
658 else
659 v0 = 0;
660 pc0 = ra;
661}
662
663void psxBios_strstr() { // 0x24
664 char *p = (char *)Ra0, *p1, *p2;
665
666 while (*p != '\0') {
667 p1 = p;
668 p2 = (char *)Ra1;
669
670 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
671 p1++; p2++;
672 }
673
674 if (*p2 == '\0') {
675 v0 = a0 + (p - (char *)Ra0);
676 pc0 = ra;
677 return;
678 }
679
680 p++;
681 }
682
683 v0 = 0; pc0 = ra;
684}
685
686void psxBios_toupper() { // 0x25
687 v0 = (s8)(a0 & 0xff);
688 if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
689 pc0 = ra;
690}
691
692void psxBios_tolower() { // 0x26
693 v0 = (s8)(a0 & 0xff);
694 if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
695 pc0 = ra;
696}
697
698void psxBios_bcopy() { // 0x27
699 char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
5ec7acdf 700 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde
P		 701
702 pc0 = ra;
703}
704
705void psxBios_bzero() { // 0x28
706 char *p = (char *)Ra0;
5ec7acdf 707 while ((s32)a1-- > 0) *p++ = '\0';
ef79bbde
P		 708
709 pc0 = ra;
710}
711
712void psxBios_bcmp() { // 0x29
713 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
714
715 if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
716
5ec7acdf 717 while ((s32)a2-- > 0) {
ef79bbde
P		 718 if (*p1++ != *p2++) {
719 v0 = *p1 - *p2; // BUG: compare the NEXT byte
720 pc0 = ra;
721 return;
722 }
723 }
724
725 v0 = 0; pc0 = ra;
726}
727
728void psxBios_memcpy() { // 0x2a
729 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
5ec7acdf 730 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde
P		 731
732 v0 = a0; pc0 = ra;
733}
734
735void psxBios_memset() { // 0x2b
736 char *p = (char *)Ra0;
5ec7acdf 737 while ((s32)a2-- > 0) *p++ = (char)a1;
ef79bbde 738
5ec7acdf 739 a2 = 0;
ef79bbde
P		 740 v0 = a0; pc0 = ra;
741}
742
743void psxBios_memmove() { // 0x2c
744 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
745
746 if (p2 <= p1 && p2 + a2 > p1) {
747 a2++; // BUG: copy one more byte here
748 p1 += a2;
749 p2 += a2;
5ec7acdf 750 while ((s32)a2-- > 0) *--p1 = *--p2;
ef79bbde 751 } else {
5ec7acdf 752 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde
P		 753 }
754
755 v0 = a0; pc0 = ra;
756}
757
758void psxBios_memcmp() { // 0x2d
759 psxBios_bcmp();
760}
761
762void psxBios_memchr() { // 0x2e
763 char *p = (char *)Ra0;
764
5ec7acdf 765 while ((s32)a2-- > 0) {
ef79bbde
P		 766 if (*p++ != (s8)a1) continue;
767 v0 = a0 + (p - (char *)Ra0 - 1);
768 pc0 = ra;
769 return;
770 }
771
772 v0 = 0; pc0 = ra;
773}
774
775void psxBios_rand() { // 0x2f
776 u32 s = psxMu32(0x9010) * 1103515245 + 12345;
777 v0 = (s >> 16) & 0x7fff;
778 psxMu32ref(0x9010) = SWAPu32(s);
779 pc0 = ra;
780}
781
782void psxBios_srand() { // 0x30
783 psxMu32ref(0x9010) = SWAPu32(a0);
784 pc0 = ra;
785}
786
787static u32 qscmpfunc, qswidth;
788
789static inline int qscmp(char *a, char *b) {
790 u32 sa0 = a0;
791
792 a0 = sa0 + (a - (char *)PSXM(sa0));
793 a1 = sa0 + (b - (char *)PSXM(sa0));
794
795 softCall2(qscmpfunc);
796
797 a0 = sa0;
798 return (s32)v0;
799}
800
801static inline void qexchange(char *i, char *j) {
802 char t;
803 int n = qswidth;
804
805 do {
806 t = *i;
807 *i++ = *j;
808 *j++ = t;
809 } while (--n);
810}
811
812static inline void q3exchange(char *i, char *j, char *k) {
813 char t;
814 int n = qswidth;
815
816 do {
817 t = *i;
818 *i++ = *k;
819 *k++ = *j;
820 *j++ = t;
821 } while (--n);
822}
823
824static void qsort_main(char *a, char *l) {
825 char *i, *j, *lp, *hp;
826 int c;
827 unsigned int n;
828
829start:
830 if ((n = l - a) <= qswidth)
831 return;
832 n = qswidth * (n / (2 * qswidth));
833 hp = lp = a + n;
834 i = a;
835 j = l - qswidth;
836 while (TRUE) {
837 if (i < lp) {
838 if ((c = qscmp(i, lp)) == 0) {
839 qexchange(i, lp -= qswidth);
840 continue;
841 }
842 if (c < 0) {
843 i += qswidth;
844 continue;
845 }
846 }
847
848loop:
849 if (j > hp) {
850 if ((c = qscmp(hp, j)) == 0) {
851 qexchange(hp += qswidth, j);
852 goto loop;
853 }
854 if (c > 0) {
855 if (i == lp) {
856 q3exchange(i, hp += qswidth, j);
857 i = lp += qswidth;
858 goto loop;
859 }
860 qexchange(i, j);
861 j -= qswidth;
862 i += qswidth;
863 continue;
864 }
865 j -= qswidth;
866 goto loop;
867 }
868
869 if (i == lp) {
870 if (lp - a >= l - hp) {
871 qsort_main(hp + qswidth, l);
872 l = lp;
873 } else {
874 qsort_main(a, lp);
875 a = hp + qswidth;
876 }
877 goto start;
878 }
879
880 q3exchange(j, lp -= qswidth, i);
881 j = hp -= qswidth;
882 }
883}
884
885void psxBios_qsort() { // 0x31
886 qswidth = a2;
887 qscmpfunc = a3;
888 qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
889
890 pc0 = ra;
891}
892
893void psxBios_malloc() { // 0x33
808a13bd 894 unsigned int *chunk, *newchunk = NULL;
895 unsigned int dsize = 0, csize, cstat;
ef79bbde
P		 896 int colflag;
897#ifdef PSXBIOS_LOG
898 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
899#endif
900
901 // scan through heap and combine free chunks of space
902 chunk = heap_addr;
903 colflag = 0;
904 while(chunk < heap_end) {
905 // get size and status of actual chunk
906 csize = ((u32)*chunk) & 0xfffffffc;
907 cstat = ((u32)*chunk) & 1;
908
909 // it's a free chunk
910 if(cstat == 1) {
911 if(colflag == 0) {
912 newchunk = chunk;
913 dsize = csize;
914 colflag = 1; // let's begin a new collection of free memory
915 }
916 else dsize += (csize+4); // add the new size including header
917 }
918 // not a free chunk: did we start a collection ?
919 else {
920 if(colflag == 1) { // collection is over
921 colflag = 0;
922 *newchunk = SWAP32(dsize | 1);
923 }
924 }
925
926 // next chunk
927 chunk = (u32*)((uptr)chunk + csize + 4);
928 }
929 // if neccessary free memory on end of heap
930 if (colflag == 1)
931 *newchunk = SWAP32(dsize | 1);
932
933 chunk = heap_addr;
934 csize = ((u32)*chunk) & 0xfffffffc;
935 cstat = ((u32)*chunk) & 1;
936 dsize = (a0 + 3) & 0xfffffffc;
937
938 // exit on uninitialized heap
939 if (chunk == NULL) {
940 SysPrintf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
941 v0 = 0;
942 pc0 = ra;
943 return;
944 }
945
946 // search an unused chunk that is big enough until the end of the heap
947 while ((dsize > csize || cstat == 0) && chunk < heap_end ) {
948 chunk = (u32*)((uptr)chunk + csize + 4);
949 csize = ((u32)*chunk) & 0xfffffffc;
950 cstat = ((u32)*chunk) & 1;
951 }
952
953 // catch out of memory
954 if(chunk >= heap_end) { SysPrintf("malloc %x,%x: Out of memory error!\n", v0, a0); v0 = 0; pc0 = ra; return; }
955
956 // allocate memory
957 if(dsize == csize) {
958 // chunk has same size
959 *chunk &= 0xfffffffc;
960 }
961 else {
962 // split free chunk
963 *chunk = SWAP32(dsize);
964 newchunk = (u32*)((uptr)chunk + dsize + 4);
808a13bd 965 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
ef79bbde
P		 966 }
967
968 // return pointer to allocated memory
969 v0 = ((unsigned long)chunk - (unsigned long)psxM) + 4;
970 v0|= 0x80000000;
971 SysPrintf ("malloc %x,%x\n", v0, a0);
972 pc0 = ra;
973}
974
975void psxBios_free() { // 0x34
976
977#ifdef PSXBIOS_LOG
978 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
979#endif
980
981 SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
982
983 *(u32*)(Ra0-4) |= 1; // set chunk to free
984 pc0 = ra;
985}
986
987void psxBios_calloc() { // 0x37
02949f79 988 void *pv0;
ef79bbde
P		 989#ifdef PSXBIOS_LOG
990 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
991#endif
992
993 a0 = a0 * a1;
994 psxBios_malloc();
02949f79 995 pv0 = Rv0;
996 if (pv0)
997 memset(pv0, 0, a0);
ef79bbde
P		 998}
999
1000void psxBios_realloc() { // 0x38
1001 u32 block = a0;
1002 u32 size = a1;
1003#ifdef PSXBIOS_LOG
1004 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1005#endif
1006
1007 a0 = block;
1008 psxBios_free();
1009 a0 = size;
1010 psxBios_malloc();
1011}
1012
1013
1014/* InitHeap(void *block , int n) */
1015void psxBios_InitHeap() { // 0x39
1016 unsigned int size;
1017
1018#ifdef PSXBIOS_LOG
1019 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1020#endif
1021
1022 if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1023 else size = a1;
1024
1025 size &= 0xfffffffc;
1026
1027 heap_addr = (u32 *)Ra0;
1028 heap_end = (u32 *)((u8 *)heap_addr + size);
1029 *heap_addr = SWAP32(size | 1);
1030
c979c3ee 1031 SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
ef79bbde
P		 1032
1033 pc0 = ra;
1034}
1035
1036void psxBios_getchar() { //0x3b
1037 v0 = getchar(); pc0 = ra;
1038}
1039
1040void psxBios_printf() { // 0x3f
1041 char tmp[1024];
1042 char tmp2[1024];
1043 u32 save[4];
1044 char *ptmp = tmp;
1045 int n=1, i=0, j;
02949f79 1046 void *psp;
1047
1048 psp = PSXM(sp);
1049 if (psp) {
1050 memcpy(save, psp, 4 * 4);
1051 psxMu32ref(sp) = SWAP32((u32)a0);
1052 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1053 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1054 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1055 }
ef79bbde
P		 1056
1057 while (Ra0[i]) {
1058 switch (Ra0[i]) {
1059 case '%':
1060 j = 0;
1061 tmp2[j++] = '%';
1062_start:
1063 switch (Ra0[++i]) {
1064 case '.':
1065 case 'l':
1066 tmp2[j++] = Ra0[i]; goto _start;
1067 default:
1068 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1069 tmp2[j++] = Ra0[i];
1070 goto _start;
1071 }
1072 break;
1073 }
1074 tmp2[j++] = Ra0[i];
1075 tmp2[j] = 0;
1076
1077 switch (Ra0[i]) {
1078 case 'f': case 'F':
1079 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1080 case 'a': case 'A':
1081 case 'e': case 'E':
1082 case 'g': case 'G':
1083 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1084 case 'p':
888468ff 1085 case 'i': case 'u':
ef79bbde
P		 1086 case 'd': case 'D':
1087 case 'o': case 'O':
1088 case 'x': case 'X':
1089 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1090 case 'c':
1091 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1092 case 's':
1093 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1094 case '%':
1095 *ptmp++ = Ra0[i]; break;
1096 }
1097 i++;
1098 break;
1099 default:
1100 *ptmp++ = Ra0[i++];
1101 }
1102 }
1103 *ptmp = 0;
1104
02949f79 1105 if (psp)
1106 memcpy(psp, save, 4 * 4);
ef79bbde 1107
808a13bd 1108 SysPrintf("%s", tmp);
ef79bbde
P		 1109
1110 pc0 = ra;
1111}
1112
e7e1f572 1113void psxBios_format() { // 0x41
1114 if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1115 {
1116 CreateMcd(Config.Mcd1);
1117 LoadMcd(1, Config.Mcd1);
1118 v0 = 1;
1119 }
1120 else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1121 {
1122 CreateMcd(Config.Mcd2);
1123 LoadMcd(2, Config.Mcd2);
1124 v0 = 1;
1125 }
1126 else
1127 {
1128 v0 = 0;
1129 }
1130 pc0 = ra;
1131}
1132
ef79bbde
P		 1133/*
1134 * long Load(char *name, struct EXEC *header);
1135 */
1136
1137void psxBios_Load() { // 0x42
1138 EXE_HEADER eheader;
02949f79 1139 void *pa1;
ef79bbde
P		 1140
1141#ifdef PSXBIOS_LOG
1142 PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1143#endif
1144
02949f79 1145 pa1 = Ra1;
1146 if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1147 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
ef79bbde
P		 1148 v0 = 1;
1149 } else v0 = 0;
1150
1151 pc0 = ra;
1152}
1153
1154/*
1155 * int Exec(struct EXEC *header , int argc , char **argv);
1156 */
1157
1158void psxBios_Exec() { // 43
1159 EXEC *header = (EXEC*)Ra0;
1160 u32 tmp;
1161
1162#ifdef PSXBIOS_LOG
1163 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1164#endif
1165
1166 header->_sp = sp;
1167 header->_fp = fp;
1168 header->_sp = sp;
1169 header->_gp = gp;
1170 header->ret = ra;
1171 header->base = s0;
1172
1173 if (header->S_addr != 0) {
1174 tmp = header->S_addr + header->s_size;
1175 sp = tmp;
1176 fp = sp;
1177 }
1178
1179 gp = header->gp0;
1180
1181 s0 = a0;
1182
1183 a0 = a1;
1184 a1 = a2;
1185
1186 ra = 0x8000;
1187 pc0 = header->_pc0;
1188}
1189
1190void psxBios_FlushCache() { // 44
1191#ifdef PSXBIOS_LOG
1192 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1193#endif
1194
1195 pc0 = ra;
1196}
1197
1198void psxBios_GPU_dw() { // 0x46
1199 int size;
1200 s32 *ptr;
1201
1202#ifdef PSXBIOS_LOG
1203 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1204#endif
1205
1206 GPU_writeData(0xa0000000);
1207 GPU_writeData((a1<<16)|(a0&0xffff));
1208 GPU_writeData((a3<<16)|(a2&0xffff));
1209 size = (a2*a3+1)/2;
1210 ptr = (s32*)PSXM(Rsp[4]); //that is correct?
1211 do {
1212 GPU_writeData(SWAP32(*ptr));
1213 ptr++;
1214 } while(--size);
1215
1216 pc0 = ra;
1217}
1218
1219void psxBios_mem2vram() { // 0x47
1220 int size;
1221
1222 GPU_writeData(0xa0000000);
1223 GPU_writeData((a1<<16)|(a0&0xffff));
1224 GPU_writeData((a3<<16)|(a2&0xffff));
1225 size = (a2*a3+1)/2;
1226 GPU_writeStatus(0x04000002);
1227 psxHwWrite32(0x1f8010f4,0);
1228 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1229 psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1230 psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1231 psxHwWrite32(0x1f8010a8,0x01000201);
1232
1233 pc0 = ra;
1234}
1235
1236void psxBios_SendGPU() { // 0x48
1237 GPU_writeStatus(a0);
ddbaf678 1238 gpuSyncPluginSR();
ef79bbde
P		 1239 pc0 = ra;
1240}
1241
1242void psxBios_GPU_cw() { // 0x49
1243 GPU_writeData(a0);
1244 pc0 = ra;
1245}
1246
1247void psxBios_GPU_cwb() { // 0x4a
1248 s32 *ptr = (s32*)Ra0;
1249 int size = a1;
1250 while(size--) {
1251 GPU_writeData(SWAP32(*ptr));
1252 ptr++;
1253 }
1254
1255 pc0 = ra;
1256}
1257
1258void psxBios_GPU_SendPackets() { //4b:
1259 GPU_writeStatus(0x04000002);
1260 psxHwWrite32(0x1f8010f4,0);
1261 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1262 psxHwWrite32(0x1f8010a0,a0);
1263 psxHwWrite32(0x1f8010a4,0);
1264 psxHwWrite32(0x1f8010a8,0x010000401);
1265 pc0 = ra;
1266}
1267
1268void psxBios_sys_a0_4c() { // 0x4c GPU relate
1269 psxHwWrite32(0x1f8010a8,0x00000401);
1270 GPU_writeData(0x0400000);
1271 GPU_writeData(0x0200000);
1272 GPU_writeData(0x0100000);
cd1ea245 1273 v0 = 0x1f801814;
ef79bbde
P		 1274 pc0 = ra;
1275}
1276
1277void psxBios_GPU_GetGPUStatus() { // 0x4d
1278 v0 = GPU_readStatus();
1279 pc0 = ra;
1280}
1281
1282#undef s_addr
1283
1284void psxBios_LoadExec() { // 51
1285 EXEC *header = (EXEC*)PSXM(0xf000);
1286 u32 s_addr, s_size;
1287
1288#ifdef PSXBIOS_LOG
1289 PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1290#endif
1291 s_addr = a1; s_size = a2;
1292
1293 a1 = 0xf000;
1294 psxBios_Load();
1295
1296 header->S_addr = s_addr;
1297 header->s_size = s_size;
1298
1299 a0 = 0xf000; a1 = 0; a2 = 0;
1300 psxBios_Exec();
1301}
1302
1303void psxBios__bu_init() { // 70
1304#ifdef PSXBIOS_LOG
1305 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1306#endif
1307
1308 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1309 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1310
1311 pc0 = ra;
1312}
1313
1314void psxBios__96_init() { // 71
1315#ifdef PSXBIOS_LOG
1316 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1317#endif
1318
1319 pc0 = ra;
1320}
1321
1322void psxBios__96_remove() { // 72
1323#ifdef PSXBIOS_LOG
1324 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1325#endif
1326
1327 pc0 = ra;
1328}
1329
1330void psxBios_SetMem() { // 9f
1331 u32 new = psxHu32(0x1060);
1332
1333#ifdef PSXBIOS_LOG
1334 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1335#endif
1336
1337 switch(a0) {
1338 case 2:
1339 psxHu32ref(0x1060) = SWAP32(new);
1340 psxMu32ref(0x060) = a0;
1341 SysPrintf("Change effective memory : %d MBytes\n",a0);
1342 break;
1343
1344 case 8:
1345 psxHu32ref(0x1060) = SWAP32(new | 0x300);
1346 psxMu32ref(0x060) = a0;
1347 SysPrintf("Change effective memory : %d MBytes\n",a0);
1348
1349 default:
1350 SysPrintf("Effective memory must be 2/8 MBytes\n");
1351 break;
1352 }
1353
1354 pc0 = ra;
1355}
1356
1357void psxBios__card_info() { // ab
1358#ifdef PSXBIOS_LOG
1359 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1360#endif
76b81516 1361 u32 ret;
e9fda093 1362 card_active_chan = a0;
1363
76b81516 1364 switch (card_active_chan)
1365 {
1366 case 0x00: case 0x01: case 0x02: case 0x03:
1367 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1368 break;
1369 case 0x10: case 0x11: case 0x12: case 0x13:
1370 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1371 break;
1372 default:
1373#ifdef PSXBIOS_LOG
1374 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1375#endif
1376 ret = 0x11;
1377 break;
1378 }
1379
1380// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
ef79bbde
P		 1381// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1382 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
76b81516 1383 DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
ef79bbde
P		 1384
1385 v0 = 1; pc0 = ra;
1386}
1387
1388void psxBios__card_load() { // ac
1389#ifdef PSXBIOS_LOG
1390 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1391#endif
1392
e9fda093 1393 card_active_chan = a0;
1394
ef79bbde
P		 1395// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1396 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1397
1398 v0 = 1; pc0 = ra;
1399}
1400
1401/* System calls B0 */
1402
1403void psxBios_SetRCnt() { // 02
1404#ifdef PSXBIOS_LOG
1405 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1406#endif
1407
1408 a0&= 0x3;
1409 if (a0 != 3) {
1410 u32 mode=0;
1411
1412 psxRcntWtarget(a0, a1);
1413 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1414 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1415 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1416 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1417 else { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1418
1419 psxRcntWmode(a0, mode);
1420 }
1421 pc0 = ra;
1422}
1423
1424void psxBios_GetRCnt() { // 03
1425#ifdef PSXBIOS_LOG
1426 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1427#endif
1428
1429 a0&= 0x3;
1430 if (a0 != 3) v0 = psxRcntRcount(a0);
1431 else v0 = 0;
1432 pc0 = ra;
1433}
1434
1435void psxBios_StartRCnt() { // 04
1436#ifdef PSXBIOS_LOG
1437 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1438#endif
1439
1440 a0&= 0x3;
1441 if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1442 else psxHu32ref(0x1074)|= SWAPu32(0x1);
1443 v0 = 1; pc0 = ra;
1444}
1445
1446void psxBios_StopRCnt() { // 05
1447#ifdef PSXBIOS_LOG
1448 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1449#endif
1450
1451 a0&= 0x3;
1452 if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1453 else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1454 pc0 = ra;
1455}
1456
1457void psxBios_ResetRCnt() { // 06
1458#ifdef PSXBIOS_LOG
1459 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1460#endif
1461
1462 a0&= 0x3;
1463 if (a0 != 3) {
1464 psxRcntWmode(a0, 0);
1465 psxRcntWtarget(a0, 0);
1466 psxRcntWcount(a0, 0);
1467 }
1468 pc0 = ra;
1469}
1470
1471
1472/* gets ev for use with Event */
1473#define GetEv() \
1474 ev = (a0 >> 24) & 0xf; \
1475 if (ev == 0xf) ev = 0x5; \
1476 ev*= 32; \
1477 ev+= a0&0x1f;
1478
1479/* gets spec for use with Event */
1480#define GetSpec() \
1481 spec = 0; \
1482 switch (a1) { \
1483 case 0x0301: spec = 16; break; \
1484 case 0x0302: spec = 17; break; \
1485 default: \
1486 for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1487 break; \
1488 }
1489
1490void psxBios_DeliverEvent() { // 07
1491 int ev, spec;
1492 int i;
1493
1494 GetEv();
1495 GetSpec();
1496
1497#ifdef PSXBIOS_LOG
1498 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1499#endif
1500
1501 DeliverEvent(ev, spec);
1502
1503 pc0 = ra;
1504}
1505
1506void psxBios_OpenEvent() { // 08
1507 int ev, spec;
1508 int i;
1509
1510 GetEv();
1511 GetSpec();
1512
1513#ifdef PSXBIOS_LOG
1514 PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1515#endif
1516
1517 Event[ev][spec].status = EvStWAIT;
1518 Event[ev][spec].mode = a2;
1519 Event[ev][spec].fhandler = a3;
1520
1521 v0 = ev | (spec << 8);
1522 pc0 = ra;
1523}
1524
1525void psxBios_CloseEvent() { // 09
1526 int ev, spec;
1527
1528 ev = a0 & 0xff;
1529 spec = (a0 >> 8) & 0xff;
1530
1531#ifdef PSXBIOS_LOG
1532 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1533#endif
1534
1535 Event[ev][spec].status = EvStUNUSED;
1536
1537 v0 = 1; pc0 = ra;
1538}
1539
1540void psxBios_WaitEvent() { // 0a
1541 int ev, spec;
1542
1543 ev = a0 & 0xff;
1544 spec = (a0 >> 8) & 0xff;
1545
1546#ifdef PSXBIOS_LOG
1547 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1548#endif
1549
1550 Event[ev][spec].status = EvStACTIVE;
1551
1552 v0 = 1; pc0 = ra;
1553}
1554
1555void psxBios_TestEvent() { // 0b
1556 int ev, spec;
1557
1558 ev = a0 & 0xff;
1559 spec = (a0 >> 8) & 0xff;
1560
1561 if (Event[ev][spec].status == EvStALREADY) {
1562 Event[ev][spec].status = EvStACTIVE; v0 = 1;
1563 } else v0 = 0;
1564
1565#ifdef PSXBIOS_LOG
1566 PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1567#endif
1568
1569 pc0 = ra;
1570}
1571
1572void psxBios_EnableEvent() { // 0c
1573 int ev, spec;
1574
1575 ev = a0 & 0xff;
1576 spec = (a0 >> 8) & 0xff;
1577
1578#ifdef PSXBIOS_LOG
1579 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1580#endif
1581
1582 Event[ev][spec].status = EvStACTIVE;
1583
1584 v0 = 1; pc0 = ra;
1585}
1586
1587void psxBios_DisableEvent() { // 0d
1588 int ev, spec;
1589
1590 ev = a0 & 0xff;
1591 spec = (a0 >> 8) & 0xff;
1592
1593#ifdef PSXBIOS_LOG
1594 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1595#endif
1596
1597 Event[ev][spec].status = EvStWAIT;
1598
1599 v0 = 1; pc0 = ra;
1600}
1601
1602/*
1603 * long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1604 */
1605
1606void psxBios_OpenTh() { // 0e
1607 int th;
1608
1609 for (th=1; th<8; th++)
1610 if (Thread[th].status == 0) break;
1611
1612#ifdef PSXBIOS_LOG
1613 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1614#endif
1615
1616 Thread[th].status = 1;
1617 Thread[th].func = a0;
1618 Thread[th].reg[29] = a1;
1619 Thread[th].reg[28] = a2;
1620
1621 v0 = th; pc0 = ra;
1622}
1623
1624/*
1625 * int CloseTh(long thread);
1626 */
1627
1628void psxBios_CloseTh() { // 0f
1629 int th = a0 & 0xff;
1630
1631#ifdef PSXBIOS_LOG
1632 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1633#endif
1634
1635 if (Thread[th].status == 0) {
1636 v0 = 0;
1637 } else {
1638 Thread[th].status = 0;
1639 v0 = 1;
1640 }
1641
1642 pc0 = ra;
1643}
1644
1645/*
1646 * int ChangeTh(long thread);
1647 */
1648
1649void psxBios_ChangeTh() { // 10
1650 int th = a0 & 0xff;
1651
1652#ifdef PSXBIOS_LOG
1653// PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1654#endif
1655
1656 if (Thread[th].status == 0 || CurThread == th) {
1657 v0 = 0;
1658
1659 pc0 = ra;
1660 } else {
1661 v0 = 1;
1662
1663 if (Thread[CurThread].status == 2) {
1664 Thread[CurThread].status = 1;
1665 Thread[CurThread].func = ra;
1666 memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1667 }
1668
1669 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1670 pc0 = Thread[th].func;
1671 Thread[th].status = 2;
1672 CurThread = th;
1673 }
1674}
1675
1676void psxBios_InitPAD() { // 0x12
1677#ifdef PSXBIOS_LOG
1678 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1679#endif
1680
1681 pad_buf1 = (char*)Ra0;
1682 pad_buf1len = a1;
1683 pad_buf2 = (char*)Ra2;
1684 pad_buf2len = a3;
1685
1686 v0 = 1; pc0 = ra;
1687}
1688
1689void psxBios_StartPAD() { // 13
1690#ifdef PSXBIOS_LOG
1691 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1692#endif
1693
1694 psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1695 psxRegs.CP0.n.Status |= 0x401;
1696 pc0 = ra;
1697}
1698
1699void psxBios_StopPAD() { // 14
1700#ifdef PSXBIOS_LOG
1701 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1702#endif
1703
1704 pad_buf1 = NULL;
1705 pad_buf2 = NULL;
1706 pc0 = ra;
1707}
1708
1709void psxBios_PAD_init() { // 15
1710#ifdef PSXBIOS_LOG
1711 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1712#endif
a824e83d 1713 if (!(a0 == 0x20000000 || a0 == 0x20000001))
1714 {
1715 v0 = 0;
1716 pc0 = ra;
1717 return;
1718 }
ef79bbde
P		 1719 psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1720 pad_buf = (int *)Ra1;
1721 *pad_buf = -1;
1722 psxRegs.CP0.n.Status |= 0x401;
a824e83d 1723 v0 = 2;
ef79bbde
P		 1724 pc0 = ra;
1725}
1726
1727void psxBios_PAD_dr() { // 16
1728#ifdef PSXBIOS_LOG
1729 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1730#endif
1731
1732 v0 = -1; pc0 = ra;
1733}
1734
1735void psxBios_ReturnFromException() { // 17
1736 LoadRegs();
1737
1738 pc0 = psxRegs.CP0.n.EPC;
1739 if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1740
1741 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1742 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1743}
1744
1745void psxBios_ResetEntryInt() { // 18
1746#ifdef PSXBIOS_LOG
1747 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1748#endif
1749
1750 jmp_int = NULL;
1751 pc0 = ra;
1752}
1753
1754void psxBios_HookEntryInt() { // 19
1755#ifdef PSXBIOS_LOG
1756 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1757#endif
1758
1759 jmp_int = (u32*)Ra0;
1760 pc0 = ra;
1761}
1762
1763void psxBios_UnDeliverEvent() { // 0x20
1764 int ev, spec;
1765 int i;
1766
1767 GetEv();
1768 GetSpec();
1769
1770#ifdef PSXBIOS_LOG
1771 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1772#endif
1773
1774 if (Event[ev][spec].status == EvStALREADY &&
1775 Event[ev][spec].mode == EvMdNOINTR)
1776 Event[ev][spec].status = EvStACTIVE;
1777
1778 pc0 = ra;
1779}
1780
595a136b 1781char ffile[64], *pfile;
1782int nfile;
1783static void buopen(int mcd, u8 *ptr, u8 *cfg)
1784{
1785 int i;
1786 u8 *fptr = ptr;
1787
1788 strcpy(FDesc[1 + mcd].name, Ra0+5);
1789 FDesc[1 + mcd].offset = 0;
1790 FDesc[1 + mcd].mode = a1;
1791
1792 for (i=1; i<16; i++) {
1793 fptr += 128;
1794 if ((*fptr & 0xF0) != 0x50) continue;
1795 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
1796 FDesc[1 + mcd].mcfile = i;
1797 SysPrintf("open %s\n", fptr+0xa);
1798 v0 = 1 + mcd;
1799 break;
1800 }
1801 if (a1 & 0x200 && v0 == -1) { /* FCREAT */
1802 fptr = ptr;
1803 for (i=1; i<16; i++) {
1804 int j, xor, nblk = a1 >> 16;
1805 u8 *pptr, *fptr2;
1806
1807 fptr += 128;
1808 if ((*fptr & 0xF0) != 0xa0) continue;
1809
1810 FDesc[1 + mcd].mcfile = i;
1811 fptr[0] = 0x51;
1812 fptr[4] = 0x00;
1813 fptr[5] = 0x20 * nblk;
1814 fptr[6] = 0x00;
1815 fptr[7] = 0x00;
1816 strcpy(fptr+0xa, FDesc[1 + mcd].name);
1817 pptr = fptr2 = fptr;
1818 for(j=2; j<=nblk; j++) {
1819 int k;
1820 for(i++; i<16; i++) {
1821 fptr2 += 128;
1822
1823 memset(fptr2, 0, 128);
1824 fptr2[0] = j < nblk ? 0x52 : 0x53;
1825 pptr[8] = i - 1;
1826 pptr[9] = 0;
1827 for (k=0, xor=0; k<127; k++) xor^= pptr[k];
1828 pptr[127] = xor;
1829 pptr = fptr2;
1830 break;
1831 }
1832 /* shouldn't this return ENOSPC if i == 16? */
1833 }
1834 pptr[8] = pptr[9] = 0xff;
1835 for (j=0, xor=0; j<127; j++) xor^= pptr[j];
1836 pptr[127] = xor;
1837 SysPrintf("openC %s %d\n", ptr, nblk);
1838 v0 = 1 + mcd;
1839 /* just go ahead and resave them all */
1840 SaveMcd(cfg, ptr, 128, 128 * 15);
1841 break;
1842 }
1843 /* shouldn't this return ENOSPC if i == 16? */
1844 }
ef79bbde
P		 1845}
1846
1847/*
1848 * int open(char *name , int mode);
1849 */
1850
1851void psxBios_open() { // 0x32
1852 int i;
1853 char *ptr;
02949f79 1854 void *pa0 = Ra0;
ef79bbde
P		 1855
1856#ifdef PSXBIOS_LOG
1857 PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
1858#endif
1859
1860 v0 = -1;
1861
02949f79 1862 if (pa0) {
1863 if (!strncmp(pa0, "bu00", 4)) {
595a136b 1864 buopen(1, Mcd1Data, Config.Mcd1);
02949f79 1865 }
ef79bbde 1866
02949f79 1867 if (!strncmp(pa0, "bu10", 4)) {
595a136b 1868 buopen(2, Mcd2Data, Config.Mcd2);
02949f79 1869 }
ef79bbde
P		 1870 }
1871
1872 pc0 = ra;
1873}
1874
1875/*
1876 * int lseek(int fd , int offset , int whence);
1877 */
1878
1879void psxBios_lseek() { // 0x33
1880#ifdef PSXBIOS_LOG
1881 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
1882#endif
1883
1884 switch (a2) {
1885 case 0: // SEEK_SET
1886 FDesc[a0].offset = a1;
1887 v0 = a1;
1888// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1889// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1890 break;
1891
1892 case 1: // SEEK_CUR
1893 FDesc[a0].offset+= a1;
1894 v0 = FDesc[a0].offset;
1895 break;
1896 }
1897
1898 pc0 = ra;
1899}
1900
595a136b 1901#define buread(Ra1, mcd, length) { \
ef79bbde
P		 1902 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); \
1903 ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
595a136b 1904 memcpy(Ra1, ptr, length); \
ef79bbde
P		 1905 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
1906 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
595a136b 1907 if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
1908 else v0 = length; \
1909 FDesc[1 + mcd].offset += v0; \
ef79bbde
P		 1910}
1911
595a136b 1912
1913
ef79bbde
P		 1914/*
1915 * int read(int fd , void *buf , int nbytes);
1916 */
1917
1918void psxBios_read() { // 0x34
1919 char *ptr;
02949f79 1920 void *pa1 = Ra1;
ef79bbde
P		 1921
1922#ifdef PSXBIOS_LOG
1923 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
1924#endif
1925
1926 v0 = -1;
1927
02949f79 1928 if (pa1) {
1929 switch (a0) {
595a136b 1930 case 2: buread(pa1, 1, a2); break;
1931 case 3: buread(pa1, 2, a2); break;
02949f79 1932 }
ef79bbde
P		 1933 }
1934
1935 pc0 = ra;
1936}
1937
595a136b 1938#define buwrite(Ra1, mcd, length) { \
ef79bbde
P		 1939 u32 offset = + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
1940 SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
1941 ptr = Mcd##mcd##Data + offset; \
595a136b 1942 memcpy(ptr, Ra1, length); \
ef79bbde
P		 1943 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
1944 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
595a136b 1945 FDesc[1 + mcd].offset += length; \
1946 if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
1947 else v0 = length; \
ef79bbde
P		 1948}
1949
1950/*
1951 * int write(int fd , void *buf , int nbytes);
1952 */
1953
1954void psxBios_write() { // 0x35/0x03
1955 char *ptr;
02949f79 1956 void *pa1 = Ra1;
1957
1958#ifdef PSXBIOS_LOG
1959 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
1960#endif
1961
1962 v0 = -1;
1963 if (!pa1) {
1964 pc0 = ra;
1965 return;
1966 }
ef79bbde
P		 1967
1968 if (a0 == 1) { // stdout
02949f79 1969 char *ptr = pa1;
ef79bbde 1970
02949f79 1971 v0 = a2;
ef79bbde
P		 1972 while (a2 > 0) {
1973 SysPrintf("%c", *ptr++); a2--;
1974 }
1975 pc0 = ra; return;
1976 }
ef79bbde
P		 1977
1978 switch (a0) {
595a136b 1979 case 2: buwrite(pa1, 1, a2); break;
1980 case 3: buwrite(pa1, 2, a2); break;
ef79bbde
P		 1981 }
1982
1983 pc0 = ra;
1984}
1985
1986/*
1987 * int close(int fd);
1988 */
1989
1990void psxBios_close() { // 0x36
1991#ifdef PSXBIOS_LOG
1992 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
1993#endif
1994
1995 v0 = a0;
1996 pc0 = ra;
1997}
1998
1999void psxBios_putchar() { // 3d
2000 SysPrintf("%c", (char)a0);
2001 pc0 = ra;
2002}
2003
2004void psxBios_puts() { // 3e/3f
808a13bd 2005 SysPrintf("%s", Ra0);
ef79bbde
P		 2006 pc0 = ra;
2007}
2008
2009char ffile[64], *pfile;
2010int nfile;
2011
2012#define bufile(mcd) { \
2013 while (nfile < 16) { \
2014 int match=1; \
2015 \
595a136b 2016 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
ef79bbde
P		 2017 nfile++; \
2018 if ((*ptr & 0xF0) != 0x50) continue; \
595a136b 2019 /* Bug link files show up as free block. */ \
2020 if (!ptr[0xa]) continue; \
ef79bbde
P		 2021 ptr+= 0xa; \
2022 if (pfile[0] == 0) { \
507d7c1d 2023 strncpy(dir->name, ptr, sizeof(dir->name)); \
2024 dir->name[sizeof(dir->name) - 1] = '\0'; \
ef79bbde
P		 2025 } else for (i=0; i<20; i++) { \
2026 if (pfile[i] == ptr[i]) { \
595a136b 2027 dir->name[i] = ptr[i]; continue; } \
ef79bbde
P		 2028 if (pfile[i] == '?') { \
2029 dir->name[i] = ptr[i]; continue; } \
2030 if (pfile[i] == '*') { \
2031 strcpy(dir->name+i, ptr+i); break; } \
2032 match = 0; break; \
2033 } \
2034 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
595a136b 2035 if (match == 0) { continue; } \
ef79bbde
P		 2036 dir->size = 8192; \
2037 v0 = _dir; \
2038 break; \
2039 } \
2040}
2041
2042/*
2043 * struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2044 */
2045
2046void psxBios_firstfile() { // 42
2047 struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
02949f79 2048 void *pa0 = Ra0;
ef79bbde
P		 2049 u32 _dir = a1;
2050 char *ptr;
2051 int i;
2052
2053#ifdef PSXBIOS_LOG
2054 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2055#endif
2056
2057 v0 = 0;
2058
02949f79 2059 if (pa0) {
2060 strcpy(ffile, pa0);
2061 pfile = ffile+5;
2062 nfile = 1;
2063 if (!strncmp(pa0, "bu00", 4)) {
2064 bufile(1);
2065 } else if (!strncmp(pa0, "bu10", 4)) {
2066 bufile(2);
2067 }
ef79bbde
P		 2068 }
2069
66ade381 2070 // firstfile() calls _card_read() internally, so deliver it's event
2071 DeliverEvent(0x11, 0x2);
2072
ef79bbde
P		 2073 pc0 = ra;
2074}
2075
2076/*
2077 * struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2078 */
2079
2080void psxBios_nextfile() { // 43
2081 struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2082 u32 _dir = a0;
2083 char *ptr;
2084 int i;
2085
2086#ifdef PSXBIOS_LOG
2087 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2088#endif
2089
2090 v0 = 0;
2091
2092 if (!strncmp(ffile, "bu00", 4)) {
2093 bufile(1);
2094 }
2095
2096 if (!strncmp(ffile, "bu10", 4)) {
2097 bufile(2);
2098 }
2099
2100 pc0 = ra;
2101}
2102
2103#define burename(mcd) { \
2104 for (i=1; i<16; i++) { \
2105 int namelen, j, xor = 0; \
2106 ptr = Mcd##mcd##Data + 128 * i; \
2107 if ((*ptr & 0xF0) != 0x50) continue; \
2108 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2109 namelen = strlen(Ra1+5); \
2110 memcpy(ptr+0xa, Ra1+5, namelen); \
2111 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2112 for (j=0; j<127; j++) xor^= ptr[j]; \
2113 ptr[127] = xor; \
2114 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2115 v0 = 1; \
2116 break; \
2117 } \
2118}
2119
2120/*
2121 * int rename(char *old, char *new);
2122 */
2123
2124void psxBios_rename() { // 44
02949f79 2125 void *pa0 = Ra0;
2126 void *pa1 = Ra1;
ef79bbde
P		 2127 char *ptr;
2128 int i;
2129
2130#ifdef PSXBIOS_LOG
2131 PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2132#endif
2133
2134 v0 = 0;
2135
02949f79 2136 if (pa0 && pa1) {
2137 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2138 burename(1);
2139 }
ef79bbde 2140
02949f79 2141 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2142 burename(2);
2143 }
ef79bbde
P		 2144 }
2145
2146 pc0 = ra;
2147}
2148
2149
2150#define budelete(mcd) { \
2151 for (i=1; i<16; i++) { \
2152 ptr = Mcd##mcd##Data + 128 * i; \
2153 if ((*ptr & 0xF0) != 0x50) continue; \
2154 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2155 *ptr = (*ptr & 0xf) | 0xA0; \
2156 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2157 SysPrintf("delete %s\n", ptr+0xa); \
2158 v0 = 1; \
2159 break; \
2160 } \
2161}
2162
2163/*
2164 * int delete(char *name);
2165 */
2166
2167void psxBios_delete() { // 45
02949f79 2168 void *pa0 = Ra0;
ef79bbde
P		 2169 char *ptr;
2170 int i;
2171
2172#ifdef PSXBIOS_LOG
2173 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2174#endif
2175
2176 v0 = 0;
2177
02949f79 2178 if (pa0) {
2179 if (!strncmp(pa0, "bu00", 4)) {
2180 budelete(1);
2181 }
ef79bbde 2182
02949f79 2183 if (!strncmp(pa0, "bu10", 4)) {
2184 budelete(2);
2185 }
ef79bbde
P		 2186 }
2187
2188 pc0 = ra;
2189}
2190
2191void psxBios_InitCARD() { // 4a
2192#ifdef PSXBIOS_LOG
2193 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2194#endif
2195
2196 CardState = 0;
2197
2198 pc0 = ra;
2199}
2200
2201void psxBios_StartCARD() { // 4b
2202#ifdef PSXBIOS_LOG
2203 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2204#endif
2205
2206 if (CardState == 0) CardState = 1;
2207
2208 pc0 = ra;
2209}
2210
2211void psxBios_StopCARD() { // 4c
2212#ifdef PSXBIOS_LOG
2213 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2214#endif
2215
2216 if (CardState == 1) CardState = 0;
2217
2218 pc0 = ra;
2219}
2220
2221void psxBios__card_write() { // 0x4e
02949f79 2222 void *pa2 = Ra2;
ef79bbde
P		 2223 int port;
2224
2225#ifdef PSXBIOS_LOG
2226 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2227#endif
bd48ba5e 2228 /* Function also accepts sector 400h (a bug) */
2229 if (!(a1 <= 0x400))
2230 {
2231 /* Invalid sectors */
2232 v0 = 0; pc0 = ra;
2233 return;
2234 }
e9fda093 2235 card_active_chan = a0;
ef79bbde
P		 2236 port = a0 >> 4;
2237
02949f79 2238 if (pa2) {
2239 if (port == 0) {
2240 memcpy(Mcd1Data + a1 * 128, pa2, 128);
2241 SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2242 } else {
2243 memcpy(Mcd2Data + a1 * 128, pa2, 128);
2244 SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2245 }
ef79bbde
P		 2246 }
2247
2248 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2249// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2250
2251 v0 = 1; pc0 = ra;
2252}
2253
2254void psxBios__card_read() { // 0x4f
02949f79 2255 void *pa2 = Ra2;
ef79bbde
P		 2256 int port;
2257
2258#ifdef PSXBIOS_LOG
2259 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2260#endif
bd48ba5e 2261 /* Function also accepts sector 400h (a bug) */
2262 if (!(a1 <= 0x400))
2263 {
2264 /* Invalid sectors */
2265 v0 = 0; pc0 = ra;
2266 return;
2267 }
e9fda093 2268 card_active_chan = a0;
ef79bbde
P		 2269 port = a0 >> 4;
2270
02949f79 2271 if (pa2) {
2272 if (port == 0) {
2273 memcpy(pa2, Mcd1Data + a1 * 128, 128);
2274 } else {
2275 memcpy(pa2, Mcd2Data + a1 * 128, 128);
2276 }
ef79bbde
P		 2277 }
2278
2279 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2280// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2281
2282 v0 = 1; pc0 = ra;
2283}
2284
2285void psxBios__new_card() { // 0x50
2286#ifdef PSXBIOS_LOG
2287 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2288#endif
2289
2290 pc0 = ra;
2291}
2292
2293void psxBios_Krom2RawAdd() { // 0x51
2294 int i = 0;
2295
2296 const u32 table_8140[][2] = {
2297 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2298 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2299 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2300 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2301 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2302 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2303 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2304 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2305 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2306 {0xffff, 0}
2307 };
2308
2309 const u32 table_889f[][2] = {
2310 {0x889f, 0x3d68}, {0x8900, 0x40ec}, {0x897f, 0x4fb0}, {0x8a00, 0x56f4},
2311 {0x8a7f, 0x65b8}, {0x8b00, 0x6cfc}, {0x8b7f, 0x7bc0}, {0x8c00, 0x8304},
2312 {0x8c7f, 0x91c8}, {0x8d00, 0x990c}, {0x8d7f, 0xa7d0}, {0x8e00, 0xaf14},
2313 {0x8e7f, 0xbdd8}, {0x8f00, 0xc51c}, {0x8f7f, 0xd3e0}, {0x9000, 0xdb24},
2314 {0x907f, 0xe9e8}, {0x9100, 0xf12c}, {0x917f, 0xfff0}, {0x9200, 0x10734},
2315 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2316 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2317 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2318 {0xffff, 0}
2319 };
2320
2321 if (a0 >= 0x8140 && a0 <= 0x84be) {
2322 while (table_8140[i][0] <= a0) i++;
2323 a0 -= table_8140[i - 1][0];
2324 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2325 } else if (a0 >= 0x889f && a0 <= 0x9872) {
2326 while (table_889f[i][0] <= a0) i++;
2327 a0 -= table_889f[i - 1][0];
2328 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2329 } else {
2330 v0 = 0xffffffff;
2331 }
2332
2333 pc0 = ra;
2334}
2335
2336void psxBios_GetC0Table() { // 56
2337#ifdef PSXBIOS_LOG
2338 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2339#endif
2340
2341 v0 = 0x674; pc0 = ra;
2342}
2343
2344void psxBios_GetB0Table() { // 57
2345#ifdef PSXBIOS_LOG
2346 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2347#endif
2348
2349 v0 = 0x874; pc0 = ra;
2350}
2351
e9fda093 2352void psxBios__card_chan() { // 0x58
2353#ifdef PSXBIOS_LOG
2354 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2355#endif
2356
2357 v0 = card_active_chan;
2358 pc0 = ra;
2359}
2360
ef79bbde
P		 2361void psxBios_ChangeClearPad() { // 5b
2362#ifdef PSXBIOS_LOG
2363 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2364#endif
2365
2366 pc0 = ra;
2367}
2368
2369/* System calls C0 */
2370
2371/*
2372 * int SysEnqIntRP(int index , long *queue);
2373 */
2374
2375void psxBios_SysEnqIntRP() { // 02
2376#ifdef PSXBIOS_LOG
2377 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2378#endif
2379
2380 SysIntRP[a0] = a1;
2381
2382 v0 = 0; pc0 = ra;
2383}
2384
2385/*
2386 * int SysDeqIntRP(int index , long *queue);
2387 */
2388
2389void psxBios_SysDeqIntRP() { // 03
2390#ifdef PSXBIOS_LOG
2391 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2392#endif
2393
2394 SysIntRP[a0] = 0;
2395
2396 v0 = 0; pc0 = ra;
2397}
2398
2399void psxBios_ChangeClearRCnt() { // 0a
2400 u32 *ptr;
2401
2402#ifdef PSXBIOS_LOG
2403 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2404#endif
2405
2406 ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2407 v0 = *ptr;
2408 *ptr = a1;
2409
2410// psxRegs.CP0.n.Status|= 0x404;
2411 pc0 = ra;
2412}
2413
2414void psxBios_dummy() {
2415#ifdef PSXBIOS_LOG
2416 PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2417#endif
2418 pc0 = ra;
2419}
2420
2421void (*biosA0[256])();
2422void (*biosB0[256])();
2423void (*biosC0[256])();
2424
2425#include "sjisfont.h"
2426
2427void psxBiosInit() {
2428 u32 base, size;
2429 u32 *ptr;
2430 int i;
2431 uLongf len;
2432
2433 for(i = 0; i < 256; i++) {
2434 biosA0[i] = NULL;
2435 biosB0[i] = NULL;
2436 biosC0[i] = NULL;
2437 }
2438 biosA0[0x3e] = psxBios_puts;
2439 biosA0[0x3f] = psxBios_printf;
2440
2441 biosB0[0x3d] = psxBios_putchar;
2442 biosB0[0x3f] = psxBios_puts;
2443
2444 if (!Config.HLE) return;
2445
2446 for(i = 0; i < 256; i++) {
2447 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2448 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2449 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2450 }
2451
2452 biosA0[0x00] = psxBios_open;
2453 biosA0[0x01] = psxBios_lseek;
2454 biosA0[0x02] = psxBios_read;
2455 biosA0[0x03] = psxBios_write;
2456 biosA0[0x04] = psxBios_close;
2457 //biosA0[0x05] = psxBios_ioctl;
2458 //biosA0[0x06] = psxBios_exit;
2459 //biosA0[0x07] = psxBios_sys_a0_07;
324cec89 2460 biosA0[0x08] = psxBios_getc;
2461 biosA0[0x09] = psxBios_putc;
ba11675c 2462 biosA0[0x0a] = psxBios_todigit;
ef79bbde
P		 2463 //biosA0[0x0b] = psxBios_atof;
2464 //biosA0[0x0c] = psxBios_strtoul;
2465 //biosA0[0x0d] = psxBios_strtol;
2466 biosA0[0x0e] = psxBios_abs;
2467 biosA0[0x0f] = psxBios_labs;
2468 biosA0[0x10] = psxBios_atoi;
2469 biosA0[0x11] = psxBios_atol;
2470 //biosA0[0x12] = psxBios_atob;
2471 biosA0[0x13] = psxBios_setjmp;
2472 biosA0[0x14] = psxBios_longjmp;
2473 biosA0[0x15] = psxBios_strcat;
2474 biosA0[0x16] = psxBios_strncat;
2475 biosA0[0x17] = psxBios_strcmp;
2476 biosA0[0x18] = psxBios_strncmp;
2477 biosA0[0x19] = psxBios_strcpy;
2478 biosA0[0x1a] = psxBios_strncpy;
2479 biosA0[0x1b] = psxBios_strlen;
2480 biosA0[0x1c] = psxBios_index;
2481 biosA0[0x1d] = psxBios_rindex;
2482 biosA0[0x1e] = psxBios_strchr;
2483 biosA0[0x1f] = psxBios_strrchr;
2484 biosA0[0x20] = psxBios_strpbrk;
2485 biosA0[0x21] = psxBios_strspn;
2486 biosA0[0x22] = psxBios_strcspn;
2487 biosA0[0x23] = psxBios_strtok;
2488 biosA0[0x24] = psxBios_strstr;
2489 biosA0[0x25] = psxBios_toupper;
2490 biosA0[0x26] = psxBios_tolower;
2491 biosA0[0x27] = psxBios_bcopy;
2492 biosA0[0x28] = psxBios_bzero;
2493 biosA0[0x29] = psxBios_bcmp;
2494 biosA0[0x2a] = psxBios_memcpy;
2495 biosA0[0x2b] = psxBios_memset;
2496 biosA0[0x2c] = psxBios_memmove;
2497 biosA0[0x2d] = psxBios_memcmp;
2498 biosA0[0x2e] = psxBios_memchr;
2499 biosA0[0x2f] = psxBios_rand;
2500 biosA0[0x30] = psxBios_srand;
2501 biosA0[0x31] = psxBios_qsort;
2502 //biosA0[0x32] = psxBios_strtod;
2503 biosA0[0x33] = psxBios_malloc;
2504 biosA0[0x34] = psxBios_free;
2505 //biosA0[0x35] = psxBios_lsearch;
2506 //biosA0[0x36] = psxBios_bsearch;
2507 biosA0[0x37] = psxBios_calloc;
2508 biosA0[0x38] = psxBios_realloc;
2509 biosA0[0x39] = psxBios_InitHeap;
2510 //biosA0[0x3a] = psxBios__exit;
2511 biosA0[0x3b] = psxBios_getchar;
2512 biosA0[0x3c] = psxBios_putchar;
2513 //biosA0[0x3d] = psxBios_gets;
2514 //biosA0[0x40] = psxBios_sys_a0_40;
2515 //biosA0[0x41] = psxBios_LoadTest;
2516 biosA0[0x42] = psxBios_Load;
2517 biosA0[0x43] = psxBios_Exec;
2518 biosA0[0x44] = psxBios_FlushCache;
2519 //biosA0[0x45] = psxBios_InstallInterruptHandler;
2520 biosA0[0x46] = psxBios_GPU_dw;
2521 biosA0[0x47] = psxBios_mem2vram;
2522 biosA0[0x48] = psxBios_SendGPU;
2523 biosA0[0x49] = psxBios_GPU_cw;
2524 biosA0[0x4a] = psxBios_GPU_cwb;
2525 biosA0[0x4b] = psxBios_GPU_SendPackets;
2526 biosA0[0x4c] = psxBios_sys_a0_4c;
2527 biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2528 //biosA0[0x4e] = psxBios_GPU_sync;
2529 //biosA0[0x4f] = psxBios_sys_a0_4f;
2530 //biosA0[0x50] = psxBios_sys_a0_50;
2531 biosA0[0x51] = psxBios_LoadExec;
2532 //biosA0[0x52] = psxBios_GetSysSp;
2533 //biosA0[0x53] = psxBios_sys_a0_53;
2534 //biosA0[0x54] = psxBios__96_init_a54;
2535 //biosA0[0x55] = psxBios__bu_init_a55;
2536 //biosA0[0x56] = psxBios__96_remove_a56;
2537 //biosA0[0x57] = psxBios_sys_a0_57;
2538 //biosA0[0x58] = psxBios_sys_a0_58;
2539 //biosA0[0x59] = psxBios_sys_a0_59;
2540 //biosA0[0x5a] = psxBios_sys_a0_5a;
2541 //biosA0[0x5b] = psxBios_dev_tty_init;
2542 //biosA0[0x5c] = psxBios_dev_tty_open;
2543 //biosA0[0x5d] = psxBios_sys_a0_5d;
2544 //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2545 //biosA0[0x5f] = psxBios_dev_cd_open;
2546 //biosA0[0x60] = psxBios_dev_cd_read;
2547 //biosA0[0x61] = psxBios_dev_cd_close;
2548 //biosA0[0x62] = psxBios_dev_cd_firstfile;
2549 //biosA0[0x63] = psxBios_dev_cd_nextfile;
2550 //biosA0[0x64] = psxBios_dev_cd_chdir;
2551 //biosA0[0x65] = psxBios_dev_card_open;
2552 //biosA0[0x66] = psxBios_dev_card_read;
2553 //biosA0[0x67] = psxBios_dev_card_write;
2554 //biosA0[0x68] = psxBios_dev_card_close;
2555 //biosA0[0x69] = psxBios_dev_card_firstfile;
2556 //biosA0[0x6a] = psxBios_dev_card_nextfile;
2557 //biosA0[0x6b] = psxBios_dev_card_erase;
2558 //biosA0[0x6c] = psxBios_dev_card_undelete;
2559 //biosA0[0x6d] = psxBios_dev_card_format;
2560 //biosA0[0x6e] = psxBios_dev_card_rename;
2561 //biosA0[0x6f] = psxBios_dev_card_6f;
2562 biosA0[0x70] = psxBios__bu_init;
2563 biosA0[0x71] = psxBios__96_init;
2564 biosA0[0x72] = psxBios__96_remove;
2565 //biosA0[0x73] = psxBios_sys_a0_73;
2566 //biosA0[0x74] = psxBios_sys_a0_74;
2567 //biosA0[0x75] = psxBios_sys_a0_75;
2568 //biosA0[0x76] = psxBios_sys_a0_76;
2569 //biosA0[0x77] = psxBios_sys_a0_77;
2570 //biosA0[0x78] = psxBios__96_CdSeekL;
2571 //biosA0[0x79] = psxBios_sys_a0_79;
2572 //biosA0[0x7a] = psxBios_sys_a0_7a;
2573 //biosA0[0x7b] = psxBios_sys_a0_7b;
2574 //biosA0[0x7c] = psxBios__96_CdGetStatus;
2575 //biosA0[0x7d] = psxBios_sys_a0_7d;
2576 //biosA0[0x7e] = psxBios__96_CdRead;
2577 //biosA0[0x7f] = psxBios_sys_a0_7f;
2578 //biosA0[0x80] = psxBios_sys_a0_80;
2579 //biosA0[0x81] = psxBios_sys_a0_81;
2580 //biosA0[0x82] = psxBios_sys_a0_82;
2581 //biosA0[0x83] = psxBios_sys_a0_83;
2582 //biosA0[0x84] = psxBios_sys_a0_84;
2583 //biosA0[0x85] = psxBios__96_CdStop;
2584 //biosA0[0x86] = psxBios_sys_a0_86;
2585 //biosA0[0x87] = psxBios_sys_a0_87;
2586 //biosA0[0x88] = psxBios_sys_a0_88;
2587 //biosA0[0x89] = psxBios_sys_a0_89;
2588 //biosA0[0x8a] = psxBios_sys_a0_8a;
2589 //biosA0[0x8b] = psxBios_sys_a0_8b;
2590 //biosA0[0x8c] = psxBios_sys_a0_8c;
2591 //biosA0[0x8d] = psxBios_sys_a0_8d;
2592 //biosA0[0x8e] = psxBios_sys_a0_8e;
2593 //biosA0[0x8f] = psxBios_sys_a0_8f;
2594 //biosA0[0x90] = psxBios_sys_a0_90;
2595 //biosA0[0x91] = psxBios_sys_a0_91;
2596 //biosA0[0x92] = psxBios_sys_a0_92;
2597 //biosA0[0x93] = psxBios_sys_a0_93;
2598 //biosA0[0x94] = psxBios_sys_a0_94;
2599 //biosA0[0x95] = psxBios_sys_a0_95;
2600 //biosA0[0x96] = psxBios_AddCDROMDevice;
2601 //biosA0[0x97] = psxBios_AddMemCardDevide;
2602 //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2603 //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2604 //biosA0[0x9a] = psxBios_sys_a0_9a;
2605 //biosA0[0x9b] = psxBios_sys_a0_9b;
2606 //biosA0[0x9c] = psxBios_SetConf;
2607 //biosA0[0x9d] = psxBios_GetConf;
2608 //biosA0[0x9e] = psxBios_sys_a0_9e;
2609 biosA0[0x9f] = psxBios_SetMem;
2610 //biosA0[0xa0] = psxBios__boot;
2611 //biosA0[0xa1] = psxBios_SystemError;
2612 //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2613 //biosA0[0xa3] = psxBios_DequeueCdIntr;
2614 //biosA0[0xa4] = psxBios_sys_a0_a4;
2615 //biosA0[0xa5] = psxBios_ReadSector;
2616 //biosA0[0xa6] = psxBios_get_cd_status;
2617 //biosA0[0xa7] = psxBios_bufs_cb_0;
2618 //biosA0[0xa8] = psxBios_bufs_cb_1;
2619 //biosA0[0xa9] = psxBios_bufs_cb_2;
2620 //biosA0[0xaa] = psxBios_bufs_cb_3;
2621 biosA0[0xab] = psxBios__card_info;
2622 biosA0[0xac] = psxBios__card_load;
2623 //biosA0[0axd] = psxBios__card_auto;
2624 //biosA0[0xae] = psxBios_bufs_cd_4;
2625 //biosA0[0xaf] = psxBios_sys_a0_af;
2626 //biosA0[0xb0] = psxBios_sys_a0_b0;
2627 //biosA0[0xb1] = psxBios_sys_a0_b1;
2628 //biosA0[0xb2] = psxBios_do_a_long_jmp
2629 //biosA0[0xb3] = psxBios_sys_a0_b3;
2630 //biosA0[0xb4] = psxBios_sub_function;
2631//*******************B0 CALLS****************************
2632 //biosB0[0x00] = psxBios_SysMalloc;
2633 //biosB0[0x01] = psxBios_sys_b0_01;
2634 biosB0[0x02] = psxBios_SetRCnt;
2635 biosB0[0x03] = psxBios_GetRCnt;
2636 biosB0[0x04] = psxBios_StartRCnt;
2637 biosB0[0x05] = psxBios_StopRCnt;
2638 biosB0[0x06] = psxBios_ResetRCnt;
2639 biosB0[0x07] = psxBios_DeliverEvent;
2640 biosB0[0x08] = psxBios_OpenEvent;
2641 biosB0[0x09] = psxBios_CloseEvent;
2642 biosB0[0x0a] = psxBios_WaitEvent;
2643 biosB0[0x0b] = psxBios_TestEvent;
2644 biosB0[0x0c] = psxBios_EnableEvent;
2645 biosB0[0x0d] = psxBios_DisableEvent;
2646 biosB0[0x0e] = psxBios_OpenTh;
2647 biosB0[0x0f] = psxBios_CloseTh;
2648 biosB0[0x10] = psxBios_ChangeTh;
2649 //biosB0[0x11] = psxBios_psxBios_b0_11;
2650 biosB0[0x12] = psxBios_InitPAD;
2651 biosB0[0x13] = psxBios_StartPAD;
2652 biosB0[0x14] = psxBios_StopPAD;
2653 biosB0[0x15] = psxBios_PAD_init;
2654 biosB0[0x16] = psxBios_PAD_dr;
2655 biosB0[0x17] = psxBios_ReturnFromException;
2656 biosB0[0x18] = psxBios_ResetEntryInt;
2657 biosB0[0x19] = psxBios_HookEntryInt;
2658 //biosB0[0x1a] = psxBios_sys_b0_1a;
2659 //biosB0[0x1b] = psxBios_sys_b0_1b;
2660 //biosB0[0x1c] = psxBios_sys_b0_1c;
2661 //biosB0[0x1d] = psxBios_sys_b0_1d;
2662 //biosB0[0x1e] = psxBios_sys_b0_1e;
2663 //biosB0[0x1f] = psxBios_sys_b0_1f;
2664 biosB0[0x20] = psxBios_UnDeliverEvent;
2665 //biosB0[0x21] = psxBios_sys_b0_21;
2666 //biosB0[0x22] = psxBios_sys_b0_22;
2667 //biosB0[0x23] = psxBios_sys_b0_23;
2668 //biosB0[0x24] = psxBios_sys_b0_24;
2669 //biosB0[0x25] = psxBios_sys_b0_25;
2670 //biosB0[0x26] = psxBios_sys_b0_26;
2671 //biosB0[0x27] = psxBios_sys_b0_27;
2672 //biosB0[0x28] = psxBios_sys_b0_28;
2673 //biosB0[0x29] = psxBios_sys_b0_29;
2674 //biosB0[0x2a] = psxBios_sys_b0_2a;
2675 //biosB0[0x2b] = psxBios_sys_b0_2b;
2676 //biosB0[0x2c] = psxBios_sys_b0_2c;
2677 //biosB0[0x2d] = psxBios_sys_b0_2d;
2678 //biosB0[0x2e] = psxBios_sys_b0_2e;
2679 //biosB0[0x2f] = psxBios_sys_b0_2f;
2680 //biosB0[0x30] = psxBios_sys_b0_30;
2681 //biosB0[0x31] = psxBios_sys_b0_31;
2682 biosB0[0x32] = psxBios_open;
2683 biosB0[0x33] = psxBios_lseek;
2684 biosB0[0x34] = psxBios_read;
2685 biosB0[0x35] = psxBios_write;
2686 biosB0[0x36] = psxBios_close;
2687 //biosB0[0x37] = psxBios_ioctl;
2688 //biosB0[0x38] = psxBios_exit;
2689 //biosB0[0x39] = psxBios_sys_b0_39;
2690 //biosB0[0x3a] = psxBios_getc;
2691 //biosB0[0x3b] = psxBios_putc;
2692 biosB0[0x3c] = psxBios_getchar;
2693 //biosB0[0x3e] = psxBios_gets;
2694 //biosB0[0x40] = psxBios_cd;
e7e1f572 2695 biosB0[0x41] = psxBios_format;
ef79bbde
P		 2696 biosB0[0x42] = psxBios_firstfile;
2697 biosB0[0x43] = psxBios_nextfile;
2698 biosB0[0x44] = psxBios_rename;
2699 biosB0[0x45] = psxBios_delete;
2700 //biosB0[0x46] = psxBios_undelete;
2701 //biosB0[0x47] = psxBios_AddDevice;
2702 //biosB0[0x48] = psxBios_RemoteDevice;
2703 //biosB0[0x49] = psxBios_PrintInstalledDevices;
2704 biosB0[0x4a] = psxBios_InitCARD;
2705 biosB0[0x4b] = psxBios_StartCARD;
2706 biosB0[0x4c] = psxBios_StopCARD;
2707 //biosB0[0x4d] = psxBios_sys_b0_4d;
2708 biosB0[0x4e] = psxBios__card_write;
2709 biosB0[0x4f] = psxBios__card_read;
2710 biosB0[0x50] = psxBios__new_card;
2711 biosB0[0x51] = psxBios_Krom2RawAdd;
2712 //biosB0[0x52] = psxBios_sys_b0_52;
2713 //biosB0[0x53] = psxBios_sys_b0_53;
2714 //biosB0[0x54] = psxBios__get_errno;
2715 //biosB0[0x55] = psxBios__get_error;
2716 biosB0[0x56] = psxBios_GetC0Table;
2717 biosB0[0x57] = psxBios_GetB0Table;
e9fda093 2718 biosB0[0x58] = psxBios__card_chan;
ef79bbde
P		 2719 //biosB0[0x59] = psxBios_sys_b0_59;
2720 //biosB0[0x5a] = psxBios_sys_b0_5a;
2721 biosB0[0x5b] = psxBios_ChangeClearPad;
2722 //biosB0[0x5c] = psxBios__card_status;
2723 //biosB0[0x5d] = psxBios__card_wait;
2724//*******************C0 CALLS****************************
2725 //biosC0[0x00] = psxBios_InitRCnt;
2726 //biosC0[0x01] = psxBios_InitException;
2727 biosC0[0x02] = psxBios_SysEnqIntRP;
2728 biosC0[0x03] = psxBios_SysDeqIntRP;
2729 //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2730 //biosC0[0x05] = psxBios_get_free_TCB_slot;
2731 //biosC0[0x06] = psxBios_ExceptionHandler;
2732 //biosC0[0x07] = psxBios_InstallExeptionHandler;
2733 //biosC0[0x08] = psxBios_SysInitMemory;
2734 //biosC0[0x09] = psxBios_SysInitKMem;
2735 biosC0[0x0a] = psxBios_ChangeClearRCnt;
2736 //biosC0[0x0b] = psxBios_SystemError;
2737 //biosC0[0x0c] = psxBios_InitDefInt;
2738 //biosC0[0x0d] = psxBios_sys_c0_0d;
2739 //biosC0[0x0e] = psxBios_sys_c0_0e;
2740 //biosC0[0x0f] = psxBios_sys_c0_0f;
2741 //biosC0[0x10] = psxBios_sys_c0_10;
2742 //biosC0[0x11] = psxBios_sys_c0_11;
2743 //biosC0[0x12] = psxBios_InstallDevices;
2744 //biosC0[0x13] = psxBios_FlushStfInOutPut;
2745 //biosC0[0x14] = psxBios_sys_c0_14;
2746 //biosC0[0x15] = psxBios__cdevinput;
2747 //biosC0[0x16] = psxBios__cdevscan;
2748 //biosC0[0x17] = psxBios__circgetc;
2749 //biosC0[0x18] = psxBios__circputc;
2750 //biosC0[0x19] = psxBios_ioabort;
2751 //biosC0[0x1a] = psxBios_sys_c0_1a
2752 //biosC0[0x1b] = psxBios_KernelRedirect;
2753 //biosC0[0x1c] = psxBios_PatchAOTable;
2754//************** THE END ***************************************
2755/**/
2756 base = 0x1000;
2757 size = sizeof(EvCB) * 32;
2758 Event = (void *)&psxR[base]; base += size * 6;
2759 memset(Event, 0, size * 6);
2760 HwEV = Event;
2761 EvEV = Event + 32;
2762 RcEV = Event + 32 * 2;
2763 UeEV = Event + 32 * 3;
2764 SwEV = Event + 32 * 4;
2765 ThEV = Event + 32 * 5;
2766
2767 ptr = (u32 *)&psxM[0x0874]; // b0 table
2768 ptr[0] = SWAPu32(0x4c54 - 0x884);
2769
2770 ptr = (u32 *)&psxM[0x0674]; // c0 table
2771 ptr[6] = SWAPu32(0xc80);
2772
2773 memset(SysIntRP, 0, sizeof(SysIntRP));
2774 memset(Thread, 0, sizeof(Thread));
2775 Thread[0].status = 2; // main thread
2776
c62b43c9 2777 jmp_int = NULL;
2778 pad_buf = NULL;
2779 pad_buf1 = NULL;
2780 pad_buf2 = NULL;
2781 pad_buf1len = pad_buf2len = 0;
2782 heap_addr = NULL;
2783 heap_end = NULL;
2784 CardState = -1;
2785 CurThread = 0;
2786 memset(FDesc, 0, sizeof(FDesc));
2787
ef79bbde
P		 2788 psxMu32ref(0x0150) = SWAPu32(0x160);
2789 psxMu32ref(0x0154) = SWAPu32(0x320);
2790 psxMu32ref(0x0160) = SWAPu32(0x248);
2791 strcpy((char *)&psxM[0x248], "bu");
2792/* psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
2793 psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
2794 psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
2795 psxMu32ref(0x09e0) = SWAPu32(0x43d0);
2796 psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
2797*/
2798 // opcode HLE
2799 psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
2800 psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
2801 psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
2802 psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
2803 psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
2804 psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
2805 psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
2806 psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
2807 psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
2808 psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
2809
2810 // initial stack pointer for BIOS interrupt
2811 psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
2812
2813 // initial RNG seed
2814 psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
2815
2816 // fonts
2817 len = 0x80000 - 0x66000;
2818 uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
2819 len = 0x80000 - 0x69d68;
2820 uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
2821
2822 // memory size 2 MB
2823 psxHu32ref(0x1060) = SWAPu32(0x00000b88);
2824
2825 hleSoftCall = FALSE;
2826}
2827
2828void psxBiosShutdown() {
2829}
2830
2831#define psxBios_PADpoll(pad) { \
2832 PAD##pad##_startPoll(pad); \
2833 pad_buf##pad[0] = 0; \
2834 pad_buf##pad[1] = PAD##pad##_poll(0x42); \
2835 if (!(pad_buf##pad[1] & 0x0f)) { \
2836 bufcount = 32; \
2837 } else { \
2838 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
2839 } \
2840 PAD##pad##_poll(0); \
2841 i = 2; \
2842 while (bufcount--) { \
2843 pad_buf##pad[i++] = PAD##pad##_poll(0); \
2844 } \
2845}
2846
2847void biosInterrupt() {
2848 int i, bufcount;
2849
2850// if (psxHu32(0x1070) & 0x1) { // Vsync
2851 if (pad_buf != NULL) {
2852 u32 *buf = (u32*)pad_buf;
2853
2854 if (!Config.UseNet) {
2855 PAD1_startPoll(1);
2856 if (PAD1_poll(0x42) == 0x23) {
2857 PAD1_poll(0);
2858 *buf = PAD1_poll(0) << 8;
2859 *buf |= PAD1_poll(0);
2860 PAD1_poll(0);
2861 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
2862 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
2863 } else {
2864 PAD1_poll(0);
2865 *buf = PAD1_poll(0) << 8;
2866 *buf|= PAD1_poll(0);
2867 }
2868
2869 PAD2_startPoll(2);
2870 if (PAD2_poll(0x42) == 0x23) {
2871 PAD2_poll(0);
2872 *buf |= PAD2_poll(0) << 24;
2873 *buf |= PAD2_poll(0) << 16;
2874 PAD2_poll(0);
2875 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
2876 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
2877 } else {
2878 PAD2_poll(0);
2879 *buf |= PAD2_poll(0) << 24;
2880 *buf |= PAD2_poll(0) << 16;
2881 }
2882 } else {
2883 u16 data;
2884
2885 PAD1_startPoll(1);
2886 PAD1_poll(0x42);
2887 PAD1_poll(0);
2888 data = PAD1_poll(0) << 8;
2889 data |= PAD1_poll(0);
2890
2891 if (NET_sendPadData(&data, 2) == -1)
2892 netError();
2893
2894 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
2895 netError();
2896 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
2897 netError();
2898 }
2899 }
2900 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
2901 psxBios_PADpoll(1);
2902
2903 if (NET_sendPadData(pad_buf1, i) == -1)
2904 netError();
2905
2906 if (NET_recvPadData(pad_buf1, 1) == -1)
2907 netError();
2908 if (NET_recvPadData(pad_buf2, 2) == -1)
2909 netError();
2910 } else {
2911 if (pad_buf1) {
2912 psxBios_PADpoll(1);
2913 }
2914
2915 if (pad_buf2) {
2916 psxBios_PADpoll(2);
2917 }
2918 }
2919
2920 if (psxHu32(0x1070) & 0x1) { // Vsync
2921 if (RcEV[3][1].status == EvStACTIVE) {
2922 softCall(RcEV[3][1].fhandler);
2923// hwWrite32(0x1f801070, ~(1));
2924 }
2925 }
2926
2927 if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
2928 int i;
2929
2930 for (i = 0; i < 3; i++) {
2931 if (psxHu32(0x1070) & (1 << (i + 4))) {
2932 if (RcEV[i][1].status == EvStACTIVE) {
2933 softCall(RcEV[i][1].fhandler);
2934 }
2935 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
2936 }
2937 }
2938 }
2939}
2940
2941void psxBiosException() {
2942 int i;
2943
2944 switch (psxRegs.CP0.n.Cause & 0x3c) {
2945 case 0x00: // Interrupt
2946#ifdef PSXCPU_LOG
2947// PSXCPU_LOG("interrupt\n");
2948#endif
2949 SaveRegs();
2950
2951 sp = psxMu32(0x6c80); // create new stack for interrupt handlers
2952
2953 biosInterrupt();
2954
2955 for (i = 0; i < 8; i++) {
2956 if (SysIntRP[i]) {
2957 u32 *queue = (u32 *)PSXM(SysIntRP[i]);
2958
2959 s0 = queue[2];
2960 softCall(queue[1]);
2961 }
2962 }
2963
2964 if (jmp_int != NULL) {
2965 int i;
2966
2967 psxHwWrite32(0x1f801070, 0xffffffff);
2968
2969 ra = jmp_int[0];
2970 sp = jmp_int[1];
2971 fp = jmp_int[2];
2972 for (i = 0; i < 8; i++) // s0-s7
2973 psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
2974 gp = jmp_int[11];
2975
2976 v0 = 1;
2977 pc0 = ra;
2978 return;
2979 }
2980 psxHwWrite16(0x1f801070, 0);
2981 break;
2982
2983 case 0x20: // Syscall
2984#ifdef PSXCPU_LOG
2985 PSXCPU_LOG("syscall exp %x\n", a0);
2986#endif
2987 switch (a0) {
2988 case 1: // EnterCritical - disable irq's
79dad1b3 2989 /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
2990 v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
2991 psxRegs.CP0.n.Status &= ~0x404;
ef79bbde
P		 2992 break;
2993
2994 case 2: // ExitCritical - enable irq's
2995 psxRegs.CP0.n.Status |= 0x404;
2996 break;
2997 }
2998 pc0 = psxRegs.CP0.n.EPC + 4;
2999
3000 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3001 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3002 return;
3003
3004 default:
3005#ifdef PSXCPU_LOG
3006 PSXCPU_LOG("unknown bios exception!\n");
3007#endif
3008 break;
3009 }
3010
3011 pc0 = psxRegs.CP0.n.EPC;
3012 if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3013
3014 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3015 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3016}
3017
3018#define bfreeze(ptr, size) { \
3019 if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3020 if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3021 base += size; \
3022}
3023
3024#define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3025#define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3026
3027#define bfreezepsxMptr(ptr, type) { \
3028 if (Mode == 1) { \
3029 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3030 else psxRu32ref(base) = 0; \
3031 } else { \
3032 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3033 else (ptr) = NULL; \
3034 } \
3035 base += sizeof(u32); \
3036}
3037
3038void psxBiosFreeze(int Mode) {
3039 u32 base = 0x40000;
3040
3041 bfreezepsxMptr(jmp_int, u32);
3042 bfreezepsxMptr(pad_buf, int);
3043 bfreezepsxMptr(pad_buf1, char);
3044 bfreezepsxMptr(pad_buf2, char);
3045 bfreezepsxMptr(heap_addr, u32);
3046 bfreezel(&pad_buf1len);
3047 bfreezel(&pad_buf2len);
3048 bfreezes(regs);
3049 bfreezes(SysIntRP);
3050 bfreezel(&CardState);
3051 bfreezes(Thread);
3052 bfreezel(&CurThread);
3053 bfreezes(FDesc);
e9fda093 3054 bfreezel(&card_active_chan);
ef79bbde 3055}
ARM optimized PCSX fork