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psxbios: Should fix input issues in some games.
[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
d99f6068 319
320#define buread(Ra1, mcd, length) { \
321 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); \
322 ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
323 memcpy(Ra1, ptr, length); \
324 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
325 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
326 if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
327 else v0 = length; \
328 FDesc[1 + mcd].offset += v0; \
329}
330
331#define buwrite(Ra1, mcd, length) { \
332 u32 offset = + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
333 SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
334 ptr = Mcd##mcd##Data + offset; \
335 memcpy(ptr, Ra1, length); \
336 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
337 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
338 FDesc[1 + mcd].offset += length; \
339 if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
340 else v0 = length; \
341}
342
343
324cec89 344/* Internally redirects to "FileRead(fd,tempbuf,1)".*/
345/* For some strange reason, the returned character is sign-expanded; */
346/* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
347/* TODO FIX ME : Properly implement this behaviour */
348void psxBios_getc(void) // 0x03, 0x35
349{
d99f6068 350 char *ptr;
324cec89 351 void *pa1 = Ra1;
352#ifdef PSXBIOS_LOG
353 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
354#endif
355 v0 = -1;
356
357 if (pa1) {
358 switch (a0) {
359 case 2: buread(pa1, 1, 1); break;
360 case 3: buread(pa1, 2, 1); break;
361 }
362 }
363
364 pc0 = ra;
365}
366
367/* Copy of psxBios_write, except size is 1. */
368void psxBios_putc(void) // 0x09, 0x3B
369{
d99f6068 370 char *ptr;
324cec89 371 void *pa1 = Ra1;
372#ifdef PSXBIOS_LOG
373 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
374#endif
375 v0 = -1;
376 if (!pa1) {
377 pc0 = ra;
378 return;
379 }
380
381 if (a0 == 1) { // stdout
382 char *ptr = (char *)pa1;
383
384 v0 = a2;
385 while (a2 > 0) {
386 printf("%c", *ptr++); a2--;
387 }
388 pc0 = ra; return;
389 }
390
391 switch (a0) {
392 case 2: buwrite(pa1, 1, 1); break;
393 case 3: buwrite(pa1, 2, 1); break;
394 }
395
396 pc0 = ra;
397}
ef79bbde 398
ba11675c 399void psxBios_todigit(void) // 0x0a
400{
401 int c = a0;
402#ifdef PSXBIOS_LOG
403 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
404#endif
405 c &= 0xFF;
406 if (c >= 0x30 && c < 0x3A) {
407 c -= 0x30;
408 }
409 else if (c > 0x60 && c < 0x7B) {
410 c -= 0x20;
411 }
412 else if (c > 0x40 && c < 0x5B) {
413 c = c - 0x41 + 10;
414 }
415 else if (c >= 0x80) {
416 c = -1;
417 }
418 else
419 {
420 c = 0x0098967F;
421 }
422 v0 = c;
423 pc0 = ra;
424}
425
ef79bbde
P		 426void psxBios_abs() { // 0x0e
427 if ((s32)a0 < 0) v0 = -(s32)a0;
428 else v0 = a0;
429 pc0 = ra;
430}
431
432void psxBios_labs() { // 0x0f
433 psxBios_abs();
434}
435
436void psxBios_atoi() { // 0x10
437 s32 n = 0, f = 0;
438 char *p = (char *)Ra0;
439
440 for (;;p++) {
441 switch (*p) {
442 case ' ': case '\t': continue;
443 case '-': f++;
444 case '+': p++;
445 }
446 break;
447 }
448
449 while (*p >= '0' && *p <= '9') {
450 n = n * 10 + *p++ - '0';
451 }
452
453 v0 = (f ? -n : n);
454 pc0 = ra;
455}
456
457void psxBios_atol() { // 0x11
458 psxBios_atoi();
459}
460
461void psxBios_setjmp() { // 0x13
462 u32 *jmp_buf = (u32 *)Ra0;
463 int i;
464
465#ifdef PSXBIOS_LOG
466 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
467#endif
468
469 jmp_buf[0] = ra;
470 jmp_buf[1] = sp;
471 jmp_buf[2] = fp;
472 for (i = 0; i < 8; i++) // s0-s7
473 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
474 jmp_buf[11] = gp;
475
476 v0 = 0; pc0 = ra;
477}
478
479void psxBios_longjmp() { // 0x14
480 u32 *jmp_buf = (u32 *)Ra0;
481 int i;
482
483#ifdef PSXBIOS_LOG
484 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
485#endif
486
487 ra = jmp_buf[0]; /* ra */
488 sp = jmp_buf[1]; /* sp */
489 fp = jmp_buf[2]; /* fp */
490 for (i = 0; i < 8; i++) // s0-s7
491 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
492 gp = jmp_buf[11]; /* gp */
493
494 v0 = a1; pc0 = ra;
495}
496
497void psxBios_strcat() { // 0x15
498 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
499
500#ifdef PSXBIOS_LOG
501 PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
502#endif
bee52312 503 if (a0 == 0 || a1 == 0)
504 {
505 v0 = 0;
506 pc0 = ra;
507 return;
508 }
ef79bbde
P		 509 while (*p1++);
510 --p1;
511 while ((*p1++ = *p2++) != '\0');
512
513 v0 = a0; pc0 = ra;
514}
515
516void psxBios_strncat() { // 0x16
517 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
518 s32 n = a2;
519
520#ifdef PSXBIOS_LOG
521 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
522#endif
f42e1e90 523 if (a0 == 0 || a1 == 0)
524 {
525 v0 = 0;
526 pc0 = ra;
527 return;
528 }
ef79bbde
P		 529 while (*p1++);
530 --p1;
531 while ((*p1++ = *p2++) != '\0') {
532 if (--n < 0) {
533 *--p1 = '\0';
534 break;
535 }
536 }
537
538 v0 = a0; pc0 = ra;
539}
540
541void psxBios_strcmp() { // 0x17
542 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
543
544#ifdef PSXBIOS_LOG
545 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
546#endif
547
548 while (*p1 == *p2++) {
549 if (*p1++ == '\0') {
550 v0 = 0;
551 pc0 = ra;
552 return;
553 }
554 }
555
556 v0 = (*p1 - *--p2);
557 pc0 = ra;
558}
559
560void psxBios_strncmp() { // 0x18
561 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
562 s32 n = a2;
563
564#ifdef PSXBIOS_LOG
565 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
566#endif
567
568 while (--n >= 0 && *p1 == *p2++) {
569 if (*p1++ == '\0') {
570 v0 = 0;
571 pc0 = ra;
572 return;
573 }
574 }
575
576 v0 = (n < 0 ? 0 : *p1 - *--p2);
577 pc0 = ra;
578}
579
580void psxBios_strcpy() { // 0x19
581 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
582 while ((*p1++ = *p2++) != '\0');
583
584 v0 = a0; pc0 = ra;
585}
586
587void psxBios_strncpy() { // 0x1a
588 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
589 s32 n = a2, i;
590
591 for (i = 0; i < n; i++) {
592 if ((*p1++ = *p2++) == '\0') {
593 while (++i < n) {
594 *p1++ = '\0';
595 }
596 v0 = a0; pc0 = ra;
597 return;
598 }
599 }
600
601 v0 = a0; pc0 = ra;
602}
603
604void psxBios_strlen() { // 0x1b
605 char *p = (char *)Ra0;
606 v0 = 0;
607 while (*p++) v0++;
608 pc0 = ra;
609}
610
611void psxBios_index() { // 0x1c
612 char *p = (char *)Ra0;
613
614 do {
615 if (*p == a1) {
616 v0 = a0 + (p - (char *)Ra0);
617 pc0 = ra;
618 return;
619 }
620 } while (*p++ != '\0');
621
622 v0 = 0; pc0 = ra;
623}
624
625void psxBios_rindex() { // 0x1d
626 char *p = (char *)Ra0;
627
628 v0 = 0;
629
630 do {
631 if (*p == a1)
632 v0 = a0 + (p - (char *)Ra0);
633 } while (*p++ != '\0');
634
635 pc0 = ra;
636}
637
638void psxBios_strchr() { // 0x1e
639 psxBios_index();
640}
641
642void psxBios_strrchr() { // 0x1f
643 psxBios_rindex();
644}
645
646void psxBios_strpbrk() { // 0x20
647 char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
648
649 while ((c = *p1++) != '\0') {
650 for (scanp = p2; (sc = *scanp++) != '\0';) {
651 if (sc == c) {
652 v0 = a0 + (p1 - 1 - (char *)Ra0);
653 pc0 = ra;
654 return;
655 }
656 }
657 }
658
659 // BUG: return a0 instead of NULL if not found
660 v0 = a0; pc0 = ra;
661}
662
663void psxBios_strspn() { // 0x21
664 char *p1, *p2;
665
666 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
667 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
668 if (*p2 == '\0') break;
669 }
670
671 v0 = p1 - (char *)Ra0; pc0 = ra;
672}
673
674void psxBios_strcspn() { // 0x22
675 char *p1, *p2;
676
677 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
678 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
679 if (*p2 != '\0') break;
680 }
681
682 v0 = p1 - (char *)Ra0; pc0 = ra;
683}
684
685void psxBios_strtok() { // 0x23
686 char *pcA0 = (char *)Ra0;
687 char *pcRet = strtok(pcA0, (char *)Ra1);
688 if (pcRet)
689 v0 = a0 + pcRet - pcA0;
690 else
691 v0 = 0;
692 pc0 = ra;
693}
694
695void psxBios_strstr() { // 0x24
696 char *p = (char *)Ra0, *p1, *p2;
697
698 while (*p != '\0') {
699 p1 = p;
700 p2 = (char *)Ra1;
701
702 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
703 p1++; p2++;
704 }
705
706 if (*p2 == '\0') {
707 v0 = a0 + (p - (char *)Ra0);
708 pc0 = ra;
709 return;
710 }
711
712 p++;
713 }
714
715 v0 = 0; pc0 = ra;
716}
717
718void psxBios_toupper() { // 0x25
719 v0 = (s8)(a0 & 0xff);
720 if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
721 pc0 = ra;
722}
723
724void psxBios_tolower() { // 0x26
725 v0 = (s8)(a0 & 0xff);
726 if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
727 pc0 = ra;
728}
729
730void psxBios_bcopy() { // 0x27
731 char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
5ec7acdf 732 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde
P		 733
734 pc0 = ra;
735}
736
737void psxBios_bzero() { // 0x28
738 char *p = (char *)Ra0;
5ec7acdf 739 while ((s32)a1-- > 0) *p++ = '\0';
ef79bbde
P		 740
741 pc0 = ra;
742}
743
744void psxBios_bcmp() { // 0x29
745 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
746
747 if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
748
5ec7acdf 749 while ((s32)a2-- > 0) {
ef79bbde
P		 750 if (*p1++ != *p2++) {
751 v0 = *p1 - *p2; // BUG: compare the NEXT byte
752 pc0 = ra;
753 return;
754 }
755 }
756
757 v0 = 0; pc0 = ra;
758}
759
760void psxBios_memcpy() { // 0x2a
761 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
5ec7acdf 762 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde
P		 763
764 v0 = a0; pc0 = ra;
765}
766
767void psxBios_memset() { // 0x2b
768 char *p = (char *)Ra0;
5ec7acdf 769 while ((s32)a2-- > 0) *p++ = (char)a1;
ef79bbde 770
5ec7acdf 771 a2 = 0;
ef79bbde
P		 772 v0 = a0; pc0 = ra;
773}
774
775void psxBios_memmove() { // 0x2c
776 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
777
778 if (p2 <= p1 && p2 + a2 > p1) {
779 a2++; // BUG: copy one more byte here
780 p1 += a2;
781 p2 += a2;
5ec7acdf 782 while ((s32)a2-- > 0) *--p1 = *--p2;
ef79bbde 783 } else {
5ec7acdf 784 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde
P		 785 }
786
787 v0 = a0; pc0 = ra;
788}
789
790void psxBios_memcmp() { // 0x2d
791 psxBios_bcmp();
792}
793
794void psxBios_memchr() { // 0x2e
795 char *p = (char *)Ra0;
796
5ec7acdf 797 while ((s32)a2-- > 0) {
ef79bbde
P		 798 if (*p++ != (s8)a1) continue;
799 v0 = a0 + (p - (char *)Ra0 - 1);
800 pc0 = ra;
801 return;
802 }
803
804 v0 = 0; pc0 = ra;
805}
806
807void psxBios_rand() { // 0x2f
808 u32 s = psxMu32(0x9010) * 1103515245 + 12345;
809 v0 = (s >> 16) & 0x7fff;
810 psxMu32ref(0x9010) = SWAPu32(s);
811 pc0 = ra;
812}
813
814void psxBios_srand() { // 0x30
815 psxMu32ref(0x9010) = SWAPu32(a0);
816 pc0 = ra;
817}
818
819static u32 qscmpfunc, qswidth;
820
821static inline int qscmp(char *a, char *b) {
822 u32 sa0 = a0;
823
824 a0 = sa0 + (a - (char *)PSXM(sa0));
825 a1 = sa0 + (b - (char *)PSXM(sa0));
826
827 softCall2(qscmpfunc);
828
829 a0 = sa0;
830 return (s32)v0;
831}
832
833static inline void qexchange(char *i, char *j) {
834 char t;
835 int n = qswidth;
836
837 do {
838 t = *i;
839 *i++ = *j;
840 *j++ = t;
841 } while (--n);
842}
843
844static inline void q3exchange(char *i, char *j, char *k) {
845 char t;
846 int n = qswidth;
847
848 do {
849 t = *i;
850 *i++ = *k;
851 *k++ = *j;
852 *j++ = t;
853 } while (--n);
854}
855
856static void qsort_main(char *a, char *l) {
857 char *i, *j, *lp, *hp;
858 int c;
859 unsigned int n;
860
861start:
862 if ((n = l - a) <= qswidth)
863 return;
864 n = qswidth * (n / (2 * qswidth));
865 hp = lp = a + n;
866 i = a;
867 j = l - qswidth;
868 while (TRUE) {
869 if (i < lp) {
870 if ((c = qscmp(i, lp)) == 0) {
871 qexchange(i, lp -= qswidth);
872 continue;
873 }
874 if (c < 0) {
875 i += qswidth;
876 continue;
877 }
878 }
879
880loop:
881 if (j > hp) {
882 if ((c = qscmp(hp, j)) == 0) {
883 qexchange(hp += qswidth, j);
884 goto loop;
885 }
886 if (c > 0) {
887 if (i == lp) {
888 q3exchange(i, hp += qswidth, j);
889 i = lp += qswidth;
890 goto loop;
891 }
892 qexchange(i, j);
893 j -= qswidth;
894 i += qswidth;
895 continue;
896 }
897 j -= qswidth;
898 goto loop;
899 }
900
901 if (i == lp) {
902 if (lp - a >= l - hp) {
903 qsort_main(hp + qswidth, l);
904 l = lp;
905 } else {
906 qsort_main(a, lp);
907 a = hp + qswidth;
908 }
909 goto start;
910 }
911
912 q3exchange(j, lp -= qswidth, i);
913 j = hp -= qswidth;
914 }
915}
916
917void psxBios_qsort() { // 0x31
918 qswidth = a2;
919 qscmpfunc = a3;
920 qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
921
922 pc0 = ra;
923}
924
925void psxBios_malloc() { // 0x33
808a13bd 926 unsigned int *chunk, *newchunk = NULL;
927 unsigned int dsize = 0, csize, cstat;
ef79bbde
P		 928 int colflag;
929#ifdef PSXBIOS_LOG
930 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
931#endif
932
933 // scan through heap and combine free chunks of space
934 chunk = heap_addr;
935 colflag = 0;
936 while(chunk < heap_end) {
937 // get size and status of actual chunk
938 csize = ((u32)*chunk) & 0xfffffffc;
939 cstat = ((u32)*chunk) & 1;
940
941 // it's a free chunk
942 if(cstat == 1) {
943 if(colflag == 0) {
944 newchunk = chunk;
945 dsize = csize;
946 colflag = 1; // let's begin a new collection of free memory
947 }
948 else dsize += (csize+4); // add the new size including header
949 }
950 // not a free chunk: did we start a collection ?
951 else {
952 if(colflag == 1) { // collection is over
953 colflag = 0;
954 *newchunk = SWAP32(dsize | 1);
955 }
956 }
957
958 // next chunk
959 chunk = (u32*)((uptr)chunk + csize + 4);
960 }
961 // if neccessary free memory on end of heap
962 if (colflag == 1)
963 *newchunk = SWAP32(dsize | 1);
964
965 chunk = heap_addr;
966 csize = ((u32)*chunk) & 0xfffffffc;
967 cstat = ((u32)*chunk) & 1;
968 dsize = (a0 + 3) & 0xfffffffc;
969
970 // exit on uninitialized heap
971 if (chunk == NULL) {
972 SysPrintf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
973 v0 = 0;
974 pc0 = ra;
975 return;
976 }
977
978 // search an unused chunk that is big enough until the end of the heap
979 while ((dsize > csize || cstat == 0) && chunk < heap_end ) {
980 chunk = (u32*)((uptr)chunk + csize + 4);
981 csize = ((u32)*chunk) & 0xfffffffc;
982 cstat = ((u32)*chunk) & 1;
983 }
984
985 // catch out of memory
986 if(chunk >= heap_end) { SysPrintf("malloc %x,%x: Out of memory error!\n", v0, a0); v0 = 0; pc0 = ra; return; }
987
988 // allocate memory
989 if(dsize == csize) {
990 // chunk has same size
991 *chunk &= 0xfffffffc;
992 }
993 else {
994 // split free chunk
995 *chunk = SWAP32(dsize);
996 newchunk = (u32*)((uptr)chunk + dsize + 4);
808a13bd 997 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
ef79bbde
P		 998 }
999
1000 // return pointer to allocated memory
1001 v0 = ((unsigned long)chunk - (unsigned long)psxM) + 4;
1002 v0|= 0x80000000;
1003 SysPrintf ("malloc %x,%x\n", v0, a0);
1004 pc0 = ra;
1005}
1006
1007void psxBios_free() { // 0x34
1008
1009#ifdef PSXBIOS_LOG
1010 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1011#endif
1012
1013 SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1014
1015 *(u32*)(Ra0-4) |= 1; // set chunk to free
1016 pc0 = ra;
1017}
1018
1019void psxBios_calloc() { // 0x37
02949f79 1020 void *pv0;
ef79bbde
P		 1021#ifdef PSXBIOS_LOG
1022 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1023#endif
1024
1025 a0 = a0 * a1;
1026 psxBios_malloc();
02949f79 1027 pv0 = Rv0;
1028 if (pv0)
1029 memset(pv0, 0, a0);
ef79bbde
P		 1030}
1031
1032void psxBios_realloc() { // 0x38
1033 u32 block = a0;
1034 u32 size = a1;
1035#ifdef PSXBIOS_LOG
1036 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1037#endif
1038
1039 a0 = block;
391b1d5b 1040 /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1041 if (block == 0)
1042 {
1043 psxBios_malloc();
1044 }
1045 /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1046 else if (size == 0)
1047 {
1048 psxBios_free();
1049 }
1050 /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1051 /* Note that it is not quite implemented this way here. */
1052 else
1053 {
1054 psxBios_free();
1055 a0 = size;
1056 psxBios_malloc();
1057 }
ef79bbde
P		 1058}
1059
1060
1061/* InitHeap(void *block , int n) */
1062void psxBios_InitHeap() { // 0x39
1063 unsigned int size;
1064
1065#ifdef PSXBIOS_LOG
1066 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1067#endif
1068
1069 if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1070 else size = a1;
1071
1072 size &= 0xfffffffc;
1073
1074 heap_addr = (u32 *)Ra0;
1075 heap_end = (u32 *)((u8 *)heap_addr + size);
1076 *heap_addr = SWAP32(size | 1);
1077
c979c3ee 1078 SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
ef79bbde
P		 1079
1080 pc0 = ra;
1081}
1082
1083void psxBios_getchar() { //0x3b
1084 v0 = getchar(); pc0 = ra;
1085}
1086
1087void psxBios_printf() { // 0x3f
1088 char tmp[1024];
1089 char tmp2[1024];
1090 u32 save[4];
1091 char *ptmp = tmp;
1092 int n=1, i=0, j;
02949f79 1093 void *psp;
1094
1095 psp = PSXM(sp);
1096 if (psp) {
1097 memcpy(save, psp, 4 * 4);
1098 psxMu32ref(sp) = SWAP32((u32)a0);
1099 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1100 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1101 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1102 }
ef79bbde
P		 1103
1104 while (Ra0[i]) {
1105 switch (Ra0[i]) {
1106 case '%':
1107 j = 0;
1108 tmp2[j++] = '%';
1109_start:
1110 switch (Ra0[++i]) {
1111 case '.':
1112 case 'l':
1113 tmp2[j++] = Ra0[i]; goto _start;
1114 default:
1115 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1116 tmp2[j++] = Ra0[i];
1117 goto _start;
1118 }
1119 break;
1120 }
1121 tmp2[j++] = Ra0[i];
1122 tmp2[j] = 0;
1123
1124 switch (Ra0[i]) {
1125 case 'f': case 'F':
1126 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1127 case 'a': case 'A':
1128 case 'e': case 'E':
1129 case 'g': case 'G':
1130 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1131 case 'p':
888468ff 1132 case 'i': case 'u':
ef79bbde
P		 1133 case 'd': case 'D':
1134 case 'o': case 'O':
1135 case 'x': case 'X':
1136 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1137 case 'c':
1138 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1139 case 's':
1140 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1141 case '%':
1142 *ptmp++ = Ra0[i]; break;
1143 }
1144 i++;
1145 break;
1146 default:
1147 *ptmp++ = Ra0[i++];
1148 }
1149 }
1150 *ptmp = 0;
1151
02949f79 1152 if (psp)
1153 memcpy(psp, save, 4 * 4);
ef79bbde 1154
808a13bd 1155 SysPrintf("%s", tmp);
ef79bbde
P		 1156
1157 pc0 = ra;
1158}
1159
e7e1f572 1160void psxBios_format() { // 0x41
1161 if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1162 {
1163 CreateMcd(Config.Mcd1);
1164 LoadMcd(1, Config.Mcd1);
1165 v0 = 1;
1166 }
1167 else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1168 {
1169 CreateMcd(Config.Mcd2);
1170 LoadMcd(2, Config.Mcd2);
1171 v0 = 1;
1172 }
1173 else
1174 {
1175 v0 = 0;
1176 }
1177 pc0 = ra;
1178}
1179
ef79bbde
P		 1180/*
1181 * long Load(char *name, struct EXEC *header);
1182 */
1183
1184void psxBios_Load() { // 0x42
1185 EXE_HEADER eheader;
02949f79 1186 void *pa1;
ef79bbde
P		 1187
1188#ifdef PSXBIOS_LOG
1189 PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1190#endif
1191
02949f79 1192 pa1 = Ra1;
1193 if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1194 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
ef79bbde
P		 1195 v0 = 1;
1196 } else v0 = 0;
1197
1198 pc0 = ra;
1199}
1200
1201/*
1202 * int Exec(struct EXEC *header , int argc , char **argv);
1203 */
1204
1205void psxBios_Exec() { // 43
1206 EXEC *header = (EXEC*)Ra0;
1207 u32 tmp;
1208
1209#ifdef PSXBIOS_LOG
1210 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1211#endif
1212
1213 header->_sp = sp;
1214 header->_fp = fp;
1215 header->_sp = sp;
1216 header->_gp = gp;
1217 header->ret = ra;
1218 header->base = s0;
1219
1220 if (header->S_addr != 0) {
1221 tmp = header->S_addr + header->s_size;
1222 sp = tmp;
1223 fp = sp;
1224 }
1225
1226 gp = header->gp0;
1227
1228 s0 = a0;
1229
1230 a0 = a1;
1231 a1 = a2;
1232
1233 ra = 0x8000;
1234 pc0 = header->_pc0;
1235}
1236
1237void psxBios_FlushCache() { // 44
1238#ifdef PSXBIOS_LOG
1239 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1240#endif
1241
1242 pc0 = ra;
1243}
1244
1245void psxBios_GPU_dw() { // 0x46
1246 int size;
1247 s32 *ptr;
1248
1249#ifdef PSXBIOS_LOG
1250 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1251#endif
1252
1253 GPU_writeData(0xa0000000);
1254 GPU_writeData((a1<<16)|(a0&0xffff));
1255 GPU_writeData((a3<<16)|(a2&0xffff));
1256 size = (a2*a3+1)/2;
1257 ptr = (s32*)PSXM(Rsp[4]); //that is correct?
1258 do {
1259 GPU_writeData(SWAP32(*ptr));
1260 ptr++;
1261 } while(--size);
1262
1263 pc0 = ra;
1264}
1265
1266void psxBios_mem2vram() { // 0x47
1267 int size;
1268
1269 GPU_writeData(0xa0000000);
1270 GPU_writeData((a1<<16)|(a0&0xffff));
1271 GPU_writeData((a3<<16)|(a2&0xffff));
1272 size = (a2*a3+1)/2;
1273 GPU_writeStatus(0x04000002);
1274 psxHwWrite32(0x1f8010f4,0);
1275 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1276 psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1277 psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1278 psxHwWrite32(0x1f8010a8,0x01000201);
1279
1280 pc0 = ra;
1281}
1282
1283void psxBios_SendGPU() { // 0x48
1284 GPU_writeStatus(a0);
ddbaf678 1285 gpuSyncPluginSR();
ef79bbde
P		 1286 pc0 = ra;
1287}
1288
1289void psxBios_GPU_cw() { // 0x49
1290 GPU_writeData(a0);
1291 pc0 = ra;
1292}
1293
1294void psxBios_GPU_cwb() { // 0x4a
1295 s32 *ptr = (s32*)Ra0;
1296 int size = a1;
1297 while(size--) {
1298 GPU_writeData(SWAP32(*ptr));
1299 ptr++;
1300 }
1301
1302 pc0 = ra;
1303}
1304
1305void psxBios_GPU_SendPackets() { //4b:
1306 GPU_writeStatus(0x04000002);
1307 psxHwWrite32(0x1f8010f4,0);
1308 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1309 psxHwWrite32(0x1f8010a0,a0);
1310 psxHwWrite32(0x1f8010a4,0);
1311 psxHwWrite32(0x1f8010a8,0x010000401);
1312 pc0 = ra;
1313}
1314
1315void psxBios_sys_a0_4c() { // 0x4c GPU relate
1316 psxHwWrite32(0x1f8010a8,0x00000401);
1317 GPU_writeData(0x0400000);
1318 GPU_writeData(0x0200000);
1319 GPU_writeData(0x0100000);
cd1ea245 1320 v0 = 0x1f801814;
ef79bbde
P		 1321 pc0 = ra;
1322}
1323
1324void psxBios_GPU_GetGPUStatus() { // 0x4d
1325 v0 = GPU_readStatus();
1326 pc0 = ra;
1327}
1328
1329#undef s_addr
1330
1331void psxBios_LoadExec() { // 51
1332 EXEC *header = (EXEC*)PSXM(0xf000);
1333 u32 s_addr, s_size;
1334
1335#ifdef PSXBIOS_LOG
1336 PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1337#endif
1338 s_addr = a1; s_size = a2;
1339
1340 a1 = 0xf000;
1341 psxBios_Load();
1342
1343 header->S_addr = s_addr;
1344 header->s_size = s_size;
1345
1346 a0 = 0xf000; a1 = 0; a2 = 0;
1347 psxBios_Exec();
1348}
1349
1350void psxBios__bu_init() { // 70
1351#ifdef PSXBIOS_LOG
1352 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1353#endif
1354
1355 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1356 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1357
1358 pc0 = ra;
1359}
1360
1361void psxBios__96_init() { // 71
1362#ifdef PSXBIOS_LOG
1363 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1364#endif
1365
1366 pc0 = ra;
1367}
1368
1369void psxBios__96_remove() { // 72
1370#ifdef PSXBIOS_LOG
1371 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1372#endif
1373
1374 pc0 = ra;
1375}
1376
1377void psxBios_SetMem() { // 9f
1378 u32 new = psxHu32(0x1060);
1379
1380#ifdef PSXBIOS_LOG
1381 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1382#endif
1383
1384 switch(a0) {
1385 case 2:
1386 psxHu32ref(0x1060) = SWAP32(new);
1387 psxMu32ref(0x060) = a0;
1388 SysPrintf("Change effective memory : %d MBytes\n",a0);
1389 break;
1390
1391 case 8:
1392 psxHu32ref(0x1060) = SWAP32(new | 0x300);
1393 psxMu32ref(0x060) = a0;
1394 SysPrintf("Change effective memory : %d MBytes\n",a0);
1395
1396 default:
1397 SysPrintf("Effective memory must be 2/8 MBytes\n");
1398 break;
1399 }
1400
1401 pc0 = ra;
1402}
1403
1404void psxBios__card_info() { // ab
1405#ifdef PSXBIOS_LOG
1406 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1407#endif
76b81516 1408 u32 ret;
e9fda093 1409 card_active_chan = a0;
1410
76b81516 1411 switch (card_active_chan)
1412 {
1413 case 0x00: case 0x01: case 0x02: case 0x03:
1414 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1415 break;
1416 case 0x10: case 0x11: case 0x12: case 0x13:
1417 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1418 break;
1419 default:
1420#ifdef PSXBIOS_LOG
1421 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1422#endif
1423 ret = 0x11;
1424 break;
1425 }
1426
1427// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
ef79bbde
P		 1428// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1429 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
76b81516 1430 DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
ef79bbde
P		 1431
1432 v0 = 1; pc0 = ra;
1433}
1434
1435void psxBios__card_load() { // ac
1436#ifdef PSXBIOS_LOG
1437 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1438#endif
1439
e9fda093 1440 card_active_chan = a0;
1441
ef79bbde
P		 1442// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1443 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1444
1445 v0 = 1; pc0 = ra;
1446}
1447
1448/* System calls B0 */
1449
1450void psxBios_SetRCnt() { // 02
1451#ifdef PSXBIOS_LOG
1452 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1453#endif
1454
1455 a0&= 0x3;
1456 if (a0 != 3) {
1457 u32 mode=0;
1458
1459 psxRcntWtarget(a0, a1);
1460 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1461 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1462 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1463 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1464 else { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1465
1466 psxRcntWmode(a0, mode);
1467 }
1468 pc0 = ra;
1469}
1470
1471void psxBios_GetRCnt() { // 03
1472#ifdef PSXBIOS_LOG
1473 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1474#endif
1475
1476 a0&= 0x3;
1477 if (a0 != 3) v0 = psxRcntRcount(a0);
1478 else v0 = 0;
1479 pc0 = ra;
1480}
1481
1482void psxBios_StartRCnt() { // 04
1483#ifdef PSXBIOS_LOG
1484 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1485#endif
1486
1487 a0&= 0x3;
1488 if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1489 else psxHu32ref(0x1074)|= SWAPu32(0x1);
1490 v0 = 1; pc0 = ra;
1491}
1492
1493void psxBios_StopRCnt() { // 05
1494#ifdef PSXBIOS_LOG
1495 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1496#endif
1497
1498 a0&= 0x3;
1499 if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1500 else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1501 pc0 = ra;
1502}
1503
1504void psxBios_ResetRCnt() { // 06
1505#ifdef PSXBIOS_LOG
1506 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1507#endif
1508
1509 a0&= 0x3;
1510 if (a0 != 3) {
1511 psxRcntWmode(a0, 0);
1512 psxRcntWtarget(a0, 0);
1513 psxRcntWcount(a0, 0);
1514 }
1515 pc0 = ra;
1516}
1517
1518
1519/* gets ev for use with Event */
1520#define GetEv() \
1521 ev = (a0 >> 24) & 0xf; \
1522 if (ev == 0xf) ev = 0x5; \
1523 ev*= 32; \
1524 ev+= a0&0x1f;
1525
1526/* gets spec for use with Event */
1527#define GetSpec() \
1528 spec = 0; \
1529 switch (a1) { \
1530 case 0x0301: spec = 16; break; \
1531 case 0x0302: spec = 17; break; \
1532 default: \
1533 for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1534 break; \
1535 }
1536
1537void psxBios_DeliverEvent() { // 07
1538 int ev, spec;
1539 int i;
1540
1541 GetEv();
1542 GetSpec();
1543
1544#ifdef PSXBIOS_LOG
1545 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1546#endif
1547
1548 DeliverEvent(ev, spec);
1549
1550 pc0 = ra;
1551}
1552
1553void psxBios_OpenEvent() { // 08
1554 int ev, spec;
1555 int i;
1556
1557 GetEv();
1558 GetSpec();
1559
1560#ifdef PSXBIOS_LOG
1561 PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1562#endif
1563
1564 Event[ev][spec].status = EvStWAIT;
1565 Event[ev][spec].mode = a2;
1566 Event[ev][spec].fhandler = a3;
1567
1568 v0 = ev | (spec << 8);
1569 pc0 = ra;
1570}
1571
1572void psxBios_CloseEvent() { // 09
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[0x09], ev, spec);
1580#endif
1581
1582 Event[ev][spec].status = EvStUNUSED;
1583
1584 v0 = 1; pc0 = ra;
1585}
1586
1587void psxBios_WaitEvent() { // 0a
1588 int ev, spec;
1589
1590 ev = a0 & 0xff;
1591 spec = (a0 >> 8) & 0xff;
ef79bbde
P		 1592#ifdef PSXBIOS_LOG
1593 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1594#endif
d95c9dcb 1595 if (Event[ev][spec].status == EvStUNUSED)
1596 {
1597 v0 = 0;
1598 pc0 = ra;
1599 return;
1600 }
ef79bbde 1601
d95c9dcb 1602 if (Event[ev][spec].status == EvStALREADY)
1603 {
1604 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1605 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1606 v0 = 1;
1607 pc0 = ra;
1608 return;
1609 }
ef79bbde 1610
d95c9dcb 1611 v0 = 0;
1612 pc0 = ra;
ef79bbde
P		 1613}
1614
1615void psxBios_TestEvent() { // 0b
1616 int ev, spec;
1617
1618 ev = a0 & 0xff;
1619 spec = (a0 >> 8) & 0xff;
1620
1621 if (Event[ev][spec].status == EvStALREADY) {
1622 Event[ev][spec].status = EvStACTIVE; v0 = 1;
1623 } else v0 = 0;
1624
1625#ifdef PSXBIOS_LOG
1626 PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1627#endif
1628
1629 pc0 = ra;
1630}
1631
1632void psxBios_EnableEvent() { // 0c
1633 int ev, spec;
1634
1635 ev = a0 & 0xff;
1636 spec = (a0 >> 8) & 0xff;
1637
1638#ifdef PSXBIOS_LOG
1639 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1640#endif
1641
1642 Event[ev][spec].status = EvStACTIVE;
1643
1644 v0 = 1; pc0 = ra;
1645}
1646
1647void psxBios_DisableEvent() { // 0d
1648 int ev, spec;
1649
1650 ev = a0 & 0xff;
1651 spec = (a0 >> 8) & 0xff;
1652
1653#ifdef PSXBIOS_LOG
1654 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1655#endif
1656
1657 Event[ev][spec].status = EvStWAIT;
1658
1659 v0 = 1; pc0 = ra;
1660}
1661
1662/*
1663 * long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1664 */
1665
1666void psxBios_OpenTh() { // 0e
1667 int th;
1668
1669 for (th=1; th<8; th++)
a66d3058 1670 {
ef79bbde
P		 1671 if (Thread[th].status == 0) break;
1672
a66d3058 1673 }
1674 if (th == 8) {
1675 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1676 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1677#ifdef PSXBIOS_LOG
1678 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1679#endif
1680 v0 = 0xffffffff;
1681 pc0 = ra;
1682 return;
1683 }
ef79bbde
P		 1684#ifdef PSXBIOS_LOG
1685 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1686#endif
1687
1688 Thread[th].status = 1;
1689 Thread[th].func = a0;
1690 Thread[th].reg[29] = a1;
1691 Thread[th].reg[28] = a2;
1692
1693 v0 = th; pc0 = ra;
1694}
1695
1696/*
1697 * int CloseTh(long thread);
1698 */
1699
1700void psxBios_CloseTh() { // 0f
1701 int th = a0 & 0xff;
1702
1703#ifdef PSXBIOS_LOG
1704 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1705#endif
1706
1707 if (Thread[th].status == 0) {
1708 v0 = 0;
1709 } else {
1710 Thread[th].status = 0;
1711 v0 = 1;
1712 }
1713
1714 pc0 = ra;
1715}
1716
1717/*
1718 * int ChangeTh(long thread);
1719 */
1720
1721void psxBios_ChangeTh() { // 10
1722 int th = a0 & 0xff;
1723
1724#ifdef PSXBIOS_LOG
1725// PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1726#endif
1727
1728 if (Thread[th].status == 0 || CurThread == th) {
1729 v0 = 0;
1730
1731 pc0 = ra;
1732 } else {
1733 v0 = 1;
1734
1735 if (Thread[CurThread].status == 2) {
1736 Thread[CurThread].status = 1;
1737 Thread[CurThread].func = ra;
1738 memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1739 }
1740
1741 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1742 pc0 = Thread[th].func;
1743 Thread[th].status = 2;
1744 CurThread = th;
1745 }
1746}
1747
1748void psxBios_InitPAD() { // 0x12
1749#ifdef PSXBIOS_LOG
1750 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1751#endif
1752
1753 pad_buf1 = (char*)Ra0;
1754 pad_buf1len = a1;
1755 pad_buf2 = (char*)Ra2;
1756 pad_buf2len = a3;
1757
1758 v0 = 1; pc0 = ra;
1759}
1760
1761void psxBios_StartPAD() { // 13
1762#ifdef PSXBIOS_LOG
1763 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1764#endif
1765
1766 psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1767 psxRegs.CP0.n.Status |= 0x401;
1768 pc0 = ra;
1769}
1770
1771void psxBios_StopPAD() { // 14
1772#ifdef PSXBIOS_LOG
1773 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1774#endif
8a0245bb 1775 if (pad_buf == 0){
ef79bbde
P		 1776 pad_buf1 = NULL;
1777 pad_buf2 = NULL;
8a0245bb 1778 }
ef79bbde
P		 1779 pc0 = ra;
1780}
1781
1782void psxBios_PAD_init() { // 15
1783#ifdef PSXBIOS_LOG
1784 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1785#endif
a824e83d 1786 if (!(a0 == 0x20000000 || a0 == 0x20000001))
1787 {
1788 v0 = 0;
1789 pc0 = ra;
1790 return;
1791 }
ef79bbde
P		 1792 psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1793 pad_buf = (int *)Ra1;
1794 *pad_buf = -1;
1795 psxRegs.CP0.n.Status |= 0x401;
a824e83d 1796 v0 = 2;
ef79bbde
P		 1797 pc0 = ra;
1798}
1799
1800void psxBios_PAD_dr() { // 16
1801#ifdef PSXBIOS_LOG
1802 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1803#endif
1804
1805 v0 = -1; pc0 = ra;
1806}
1807
1808void psxBios_ReturnFromException() { // 17
1809 LoadRegs();
1810
1811 pc0 = psxRegs.CP0.n.EPC;
1812 if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1813
1814 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1815 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1816}
1817
1818void psxBios_ResetEntryInt() { // 18
1819#ifdef PSXBIOS_LOG
1820 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1821#endif
1822
1823 jmp_int = NULL;
1824 pc0 = ra;
1825}
1826
1827void psxBios_HookEntryInt() { // 19
1828#ifdef PSXBIOS_LOG
1829 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1830#endif
1831
1832 jmp_int = (u32*)Ra0;
1833 pc0 = ra;
1834}
1835
1836void psxBios_UnDeliverEvent() { // 0x20
1837 int ev, spec;
1838 int i;
1839
1840 GetEv();
1841 GetSpec();
1842
1843#ifdef PSXBIOS_LOG
1844 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1845#endif
1846
1847 if (Event[ev][spec].status == EvStALREADY &&
1848 Event[ev][spec].mode == EvMdNOINTR)
1849 Event[ev][spec].status = EvStACTIVE;
1850
1851 pc0 = ra;
1852}
1853
595a136b 1854char ffile[64], *pfile;
1855int nfile;
1856static void buopen(int mcd, u8 *ptr, u8 *cfg)
1857{
1858 int i;
1859 u8 *fptr = ptr;
1860
1861 strcpy(FDesc[1 + mcd].name, Ra0+5);
1862 FDesc[1 + mcd].offset = 0;
1863 FDesc[1 + mcd].mode = a1;
1864
1865 for (i=1; i<16; i++) {
1866 fptr += 128;
1867 if ((*fptr & 0xF0) != 0x50) continue;
1868 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
1869 FDesc[1 + mcd].mcfile = i;
1870 SysPrintf("open %s\n", fptr+0xa);
1871 v0 = 1 + mcd;
1872 break;
1873 }
1874 if (a1 & 0x200 && v0 == -1) { /* FCREAT */
1875 fptr = ptr;
1876 for (i=1; i<16; i++) {
1877 int j, xor, nblk = a1 >> 16;
1878 u8 *pptr, *fptr2;
1879
1880 fptr += 128;
1881 if ((*fptr & 0xF0) != 0xa0) continue;
1882
1883 FDesc[1 + mcd].mcfile = i;
1884 fptr[0] = 0x51;
1885 fptr[4] = 0x00;
1886 fptr[5] = 0x20 * nblk;
1887 fptr[6] = 0x00;
1888 fptr[7] = 0x00;
1889 strcpy(fptr+0xa, FDesc[1 + mcd].name);
1890 pptr = fptr2 = fptr;
1891 for(j=2; j<=nblk; j++) {
1892 int k;
1893 for(i++; i<16; i++) {
1894 fptr2 += 128;
1895
1896 memset(fptr2, 0, 128);
1897 fptr2[0] = j < nblk ? 0x52 : 0x53;
1898 pptr[8] = i - 1;
1899 pptr[9] = 0;
1900 for (k=0, xor=0; k<127; k++) xor^= pptr[k];
1901 pptr[127] = xor;
1902 pptr = fptr2;
1903 break;
1904 }
1905 /* shouldn't this return ENOSPC if i == 16? */
1906 }
1907 pptr[8] = pptr[9] = 0xff;
1908 for (j=0, xor=0; j<127; j++) xor^= pptr[j];
1909 pptr[127] = xor;
1910 SysPrintf("openC %s %d\n", ptr, nblk);
1911 v0 = 1 + mcd;
1912 /* just go ahead and resave them all */
1913 SaveMcd(cfg, ptr, 128, 128 * 15);
1914 break;
1915 }
1916 /* shouldn't this return ENOSPC if i == 16? */
1917 }
ef79bbde
P		 1918}
1919
1920/*
1921 * int open(char *name , int mode);
1922 */
1923
1924void psxBios_open() { // 0x32
1925 int i;
1926 char *ptr;
02949f79 1927 void *pa0 = Ra0;
ef79bbde
P		 1928
1929#ifdef PSXBIOS_LOG
1930 PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
1931#endif
1932
1933 v0 = -1;
1934
02949f79 1935 if (pa0) {
1936 if (!strncmp(pa0, "bu00", 4)) {
595a136b 1937 buopen(1, Mcd1Data, Config.Mcd1);
02949f79 1938 }
ef79bbde 1939
02949f79 1940 if (!strncmp(pa0, "bu10", 4)) {
595a136b 1941 buopen(2, Mcd2Data, Config.Mcd2);
02949f79 1942 }
ef79bbde
P		 1943 }
1944
1945 pc0 = ra;
1946}
1947
1948/*
1949 * int lseek(int fd , int offset , int whence);
1950 */
1951
1952void psxBios_lseek() { // 0x33
1953#ifdef PSXBIOS_LOG
1954 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
1955#endif
1956
1957 switch (a2) {
1958 case 0: // SEEK_SET
1959 FDesc[a0].offset = a1;
1960 v0 = a1;
1961// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1962// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1963 break;
1964
1965 case 1: // SEEK_CUR
1966 FDesc[a0].offset+= a1;
1967 v0 = FDesc[a0].offset;
1968 break;
1969 }
1970
1971 pc0 = ra;
1972}
1973
595a136b 1974
ef79bbde
P		 1975/*
1976 * int read(int fd , void *buf , int nbytes);
1977 */
1978
1979void psxBios_read() { // 0x34
1980 char *ptr;
02949f79 1981 void *pa1 = Ra1;
ef79bbde
P		 1982
1983#ifdef PSXBIOS_LOG
1984 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
1985#endif
1986
1987 v0 = -1;
1988
02949f79 1989 if (pa1) {
1990 switch (a0) {
595a136b 1991 case 2: buread(pa1, 1, a2); break;
1992 case 3: buread(pa1, 2, a2); break;
02949f79 1993 }
ef79bbde
P		 1994 }
1995
1996 pc0 = ra;
1997}
1998
ef79bbde
P		 1999/*
2000 * int write(int fd , void *buf , int nbytes);
2001 */
2002
2003void psxBios_write() { // 0x35/0x03
2004 char *ptr;
02949f79 2005 void *pa1 = Ra1;
2006
2007#ifdef PSXBIOS_LOG
2008 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2009#endif
2010
2011 v0 = -1;
2012 if (!pa1) {
2013 pc0 = ra;
2014 return;
2015 }
ef79bbde
P		 2016
2017 if (a0 == 1) { // stdout
02949f79 2018 char *ptr = pa1;
ef79bbde 2019
02949f79 2020 v0 = a2;
ef79bbde
P		 2021 while (a2 > 0) {
2022 SysPrintf("%c", *ptr++); a2--;
2023 }
2024 pc0 = ra; return;
2025 }
ef79bbde
P		 2026
2027 switch (a0) {
595a136b 2028 case 2: buwrite(pa1, 1, a2); break;
2029 case 3: buwrite(pa1, 2, a2); break;
ef79bbde
P		 2030 }
2031
2032 pc0 = ra;
2033}
2034
2035/*
2036 * int close(int fd);
2037 */
2038
2039void psxBios_close() { // 0x36
2040#ifdef PSXBIOS_LOG
2041 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2042#endif
2043
2044 v0 = a0;
2045 pc0 = ra;
2046}
2047
2048void psxBios_putchar() { // 3d
2049 SysPrintf("%c", (char)a0);
2050 pc0 = ra;
2051}
2052
2053void psxBios_puts() { // 3e/3f
808a13bd 2054 SysPrintf("%s", Ra0);
ef79bbde
P		 2055 pc0 = ra;
2056}
2057
2058char ffile[64], *pfile;
2059int nfile;
2060
2061#define bufile(mcd) { \
2062 while (nfile < 16) { \
2063 int match=1; \
2064 \
595a136b 2065 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
ef79bbde
P		 2066 nfile++; \
2067 if ((*ptr & 0xF0) != 0x50) continue; \
595a136b 2068 /* Bug link files show up as free block. */ \
2069 if (!ptr[0xa]) continue; \
ef79bbde
P		 2070 ptr+= 0xa; \
2071 if (pfile[0] == 0) { \
507d7c1d 2072 strncpy(dir->name, ptr, sizeof(dir->name)); \
2073 dir->name[sizeof(dir->name) - 1] = '\0'; \
ef79bbde
P		 2074 } else for (i=0; i<20; i++) { \
2075 if (pfile[i] == ptr[i]) { \
595a136b 2076 dir->name[i] = ptr[i]; continue; } \
ef79bbde
P		 2077 if (pfile[i] == '?') { \
2078 dir->name[i] = ptr[i]; continue; } \
2079 if (pfile[i] == '*') { \
2080 strcpy(dir->name+i, ptr+i); break; } \
2081 match = 0; break; \
2082 } \
2083 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
595a136b 2084 if (match == 0) { continue; } \
ef79bbde
P		 2085 dir->size = 8192; \
2086 v0 = _dir; \
2087 break; \
2088 } \
2089}
2090
2091/*
2092 * struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2093 */
2094
2095void psxBios_firstfile() { // 42
2096 struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
02949f79 2097 void *pa0 = Ra0;
ef79bbde
P		 2098 u32 _dir = a1;
2099 char *ptr;
2100 int i;
2101
2102#ifdef PSXBIOS_LOG
2103 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2104#endif
2105
2106 v0 = 0;
2107
02949f79 2108 if (pa0) {
2109 strcpy(ffile, pa0);
2110 pfile = ffile+5;
2111 nfile = 1;
2112 if (!strncmp(pa0, "bu00", 4)) {
2113 bufile(1);
2114 } else if (!strncmp(pa0, "bu10", 4)) {
2115 bufile(2);
2116 }
ef79bbde
P		 2117 }
2118
66ade381 2119 // firstfile() calls _card_read() internally, so deliver it's event
2120 DeliverEvent(0x11, 0x2);
2121
ef79bbde
P		 2122 pc0 = ra;
2123}
2124
2125/*
2126 * struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2127 */
2128
2129void psxBios_nextfile() { // 43
2130 struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2131 u32 _dir = a0;
2132 char *ptr;
2133 int i;
2134
2135#ifdef PSXBIOS_LOG
2136 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2137#endif
2138
2139 v0 = 0;
2140
2141 if (!strncmp(ffile, "bu00", 4)) {
2142 bufile(1);
2143 }
2144
2145 if (!strncmp(ffile, "bu10", 4)) {
2146 bufile(2);
2147 }
2148
2149 pc0 = ra;
2150}
2151
2152#define burename(mcd) { \
2153 for (i=1; i<16; i++) { \
2154 int namelen, j, xor = 0; \
2155 ptr = Mcd##mcd##Data + 128 * i; \
2156 if ((*ptr & 0xF0) != 0x50) continue; \
2157 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2158 namelen = strlen(Ra1+5); \
2159 memcpy(ptr+0xa, Ra1+5, namelen); \
2160 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2161 for (j=0; j<127; j++) xor^= ptr[j]; \
2162 ptr[127] = xor; \
2163 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2164 v0 = 1; \
2165 break; \
2166 } \
2167}
2168
2169/*
2170 * int rename(char *old, char *new);
2171 */
2172
2173void psxBios_rename() { // 44
02949f79 2174 void *pa0 = Ra0;
2175 void *pa1 = Ra1;
ef79bbde
P		 2176 char *ptr;
2177 int i;
2178
2179#ifdef PSXBIOS_LOG
2180 PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2181#endif
2182
2183 v0 = 0;
2184
02949f79 2185 if (pa0 && pa1) {
2186 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2187 burename(1);
2188 }
ef79bbde 2189
02949f79 2190 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2191 burename(2);
2192 }
ef79bbde
P		 2193 }
2194
2195 pc0 = ra;
2196}
2197
2198
2199#define budelete(mcd) { \
2200 for (i=1; i<16; i++) { \
2201 ptr = Mcd##mcd##Data + 128 * i; \
2202 if ((*ptr & 0xF0) != 0x50) continue; \
2203 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2204 *ptr = (*ptr & 0xf) | 0xA0; \
2205 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2206 SysPrintf("delete %s\n", ptr+0xa); \
2207 v0 = 1; \
2208 break; \
2209 } \
2210}
2211
2212/*
2213 * int delete(char *name);
2214 */
2215
2216void psxBios_delete() { // 45
02949f79 2217 void *pa0 = Ra0;
ef79bbde
P		 2218 char *ptr;
2219 int i;
2220
2221#ifdef PSXBIOS_LOG
2222 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2223#endif
2224
2225 v0 = 0;
2226
02949f79 2227 if (pa0) {
2228 if (!strncmp(pa0, "bu00", 4)) {
2229 budelete(1);
2230 }
ef79bbde 2231
02949f79 2232 if (!strncmp(pa0, "bu10", 4)) {
2233 budelete(2);
2234 }
ef79bbde
P		 2235 }
2236
2237 pc0 = ra;
2238}
2239
2240void psxBios_InitCARD() { // 4a
2241#ifdef PSXBIOS_LOG
2242 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2243#endif
2244
2245 CardState = 0;
2246
2247 pc0 = ra;
2248}
2249
2250void psxBios_StartCARD() { // 4b
2251#ifdef PSXBIOS_LOG
2252 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2253#endif
2254
2255 if (CardState == 0) CardState = 1;
2256
2257 pc0 = ra;
2258}
2259
2260void psxBios_StopCARD() { // 4c
2261#ifdef PSXBIOS_LOG
2262 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2263#endif
2264
2265 if (CardState == 1) CardState = 0;
2266
2267 pc0 = ra;
2268}
2269
2270void psxBios__card_write() { // 0x4e
02949f79 2271 void *pa2 = Ra2;
ef79bbde
P		 2272 int port;
2273
2274#ifdef PSXBIOS_LOG
2275 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2276#endif
bd48ba5e 2277 /* Function also accepts sector 400h (a bug) */
2278 if (!(a1 <= 0x400))
2279 {
2280 /* Invalid sectors */
2281 v0 = 0; pc0 = ra;
2282 return;
2283 }
e9fda093 2284 card_active_chan = a0;
ef79bbde
P		 2285 port = a0 >> 4;
2286
02949f79 2287 if (pa2) {
2288 if (port == 0) {
2289 memcpy(Mcd1Data + a1 * 128, pa2, 128);
2290 SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2291 } else {
2292 memcpy(Mcd2Data + a1 * 128, pa2, 128);
2293 SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2294 }
ef79bbde
P		 2295 }
2296
2297 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2298// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2299
2300 v0 = 1; pc0 = ra;
2301}
2302
2303void psxBios__card_read() { // 0x4f
02949f79 2304 void *pa2 = Ra2;
ef79bbde
P		 2305 int port;
2306
2307#ifdef PSXBIOS_LOG
2308 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2309#endif
bd48ba5e 2310 /* Function also accepts sector 400h (a bug) */
2311 if (!(a1 <= 0x400))
2312 {
2313 /* Invalid sectors */
2314 v0 = 0; pc0 = ra;
2315 return;
2316 }
e9fda093 2317 card_active_chan = a0;
ef79bbde
P		 2318 port = a0 >> 4;
2319
02949f79 2320 if (pa2) {
2321 if (port == 0) {
2322 memcpy(pa2, Mcd1Data + a1 * 128, 128);
2323 } else {
2324 memcpy(pa2, Mcd2Data + a1 * 128, 128);
2325 }
ef79bbde
P		 2326 }
2327
2328 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2329// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2330
2331 v0 = 1; pc0 = ra;
2332}
2333
2334void psxBios__new_card() { // 0x50
2335#ifdef PSXBIOS_LOG
2336 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2337#endif
2338
2339 pc0 = ra;
2340}
2341
2342void psxBios_Krom2RawAdd() { // 0x51
2343 int i = 0;
2344
2345 const u32 table_8140[][2] = {
2346 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2347 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2348 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2349 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2350 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2351 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2352 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2353 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2354 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2355 {0xffff, 0}
2356 };
2357
2358 const u32 table_889f[][2] = {
2359 {0x889f, 0x3d68}, {0x8900, 0x40ec}, {0x897f, 0x4fb0}, {0x8a00, 0x56f4},
2360 {0x8a7f, 0x65b8}, {0x8b00, 0x6cfc}, {0x8b7f, 0x7bc0}, {0x8c00, 0x8304},
2361 {0x8c7f, 0x91c8}, {0x8d00, 0x990c}, {0x8d7f, 0xa7d0}, {0x8e00, 0xaf14},
2362 {0x8e7f, 0xbdd8}, {0x8f00, 0xc51c}, {0x8f7f, 0xd3e0}, {0x9000, 0xdb24},
2363 {0x907f, 0xe9e8}, {0x9100, 0xf12c}, {0x917f, 0xfff0}, {0x9200, 0x10734},
2364 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2365 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2366 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2367 {0xffff, 0}
2368 };
2369
2370 if (a0 >= 0x8140 && a0 <= 0x84be) {
2371 while (table_8140[i][0] <= a0) i++;
2372 a0 -= table_8140[i - 1][0];
2373 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2374 } else if (a0 >= 0x889f && a0 <= 0x9872) {
2375 while (table_889f[i][0] <= a0) i++;
2376 a0 -= table_889f[i - 1][0];
2377 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2378 } else {
2379 v0 = 0xffffffff;
2380 }
2381
2382 pc0 = ra;
2383}
2384
2385void psxBios_GetC0Table() { // 56
2386#ifdef PSXBIOS_LOG
2387 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2388#endif
2389
2390 v0 = 0x674; pc0 = ra;
2391}
2392
2393void psxBios_GetB0Table() { // 57
2394#ifdef PSXBIOS_LOG
2395 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2396#endif
2397
2398 v0 = 0x874; pc0 = ra;
2399}
2400
e9fda093 2401void psxBios__card_chan() { // 0x58
2402#ifdef PSXBIOS_LOG
2403 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2404#endif
2405
2406 v0 = card_active_chan;
2407 pc0 = ra;
2408}
2409
ef79bbde
P		 2410void psxBios_ChangeClearPad() { // 5b
2411#ifdef PSXBIOS_LOG
2412 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2413#endif
2414
2415 pc0 = ra;
2416}
2417
2418/* System calls C0 */
2419
2420/*
2421 * int SysEnqIntRP(int index , long *queue);
2422 */
2423
2424void psxBios_SysEnqIntRP() { // 02
2425#ifdef PSXBIOS_LOG
2426 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2427#endif
2428
2429 SysIntRP[a0] = a1;
2430
2431 v0 = 0; pc0 = ra;
2432}
2433
2434/*
2435 * int SysDeqIntRP(int index , long *queue);
2436 */
2437
2438void psxBios_SysDeqIntRP() { // 03
2439#ifdef PSXBIOS_LOG
2440 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2441#endif
2442
2443 SysIntRP[a0] = 0;
2444
2445 v0 = 0; pc0 = ra;
2446}
2447
2448void psxBios_ChangeClearRCnt() { // 0a
2449 u32 *ptr;
2450
2451#ifdef PSXBIOS_LOG
2452 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2453#endif
2454
2455 ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2456 v0 = *ptr;
2457 *ptr = a1;
2458
2459// psxRegs.CP0.n.Status|= 0x404;
2460 pc0 = ra;
2461}
2462
2463void psxBios_dummy() {
2464#ifdef PSXBIOS_LOG
2465 PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2466#endif
2467 pc0 = ra;
2468}
2469
2470void (*biosA0[256])();
2471void (*biosB0[256])();
2472void (*biosC0[256])();
2473
2474#include "sjisfont.h"
2475
2476void psxBiosInit() {
2477 u32 base, size;
2478 u32 *ptr;
2479 int i;
2480 uLongf len;
2481
2482 for(i = 0; i < 256; i++) {
2483 biosA0[i] = NULL;
2484 biosB0[i] = NULL;
2485 biosC0[i] = NULL;
2486 }
2487 biosA0[0x3e] = psxBios_puts;
2488 biosA0[0x3f] = psxBios_printf;
2489
2490 biosB0[0x3d] = psxBios_putchar;
2491 biosB0[0x3f] = psxBios_puts;
2492
2493 if (!Config.HLE) return;
2494
2495 for(i = 0; i < 256; i++) {
2496 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2497 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2498 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2499 }
2500
2501 biosA0[0x00] = psxBios_open;
2502 biosA0[0x01] = psxBios_lseek;
2503 biosA0[0x02] = psxBios_read;
2504 biosA0[0x03] = psxBios_write;
2505 biosA0[0x04] = psxBios_close;
2506 //biosA0[0x05] = psxBios_ioctl;
2507 //biosA0[0x06] = psxBios_exit;
2508 //biosA0[0x07] = psxBios_sys_a0_07;
324cec89 2509 biosA0[0x08] = psxBios_getc;
2510 biosA0[0x09] = psxBios_putc;
ba11675c 2511 biosA0[0x0a] = psxBios_todigit;
ef79bbde
P		 2512 //biosA0[0x0b] = psxBios_atof;
2513 //biosA0[0x0c] = psxBios_strtoul;
2514 //biosA0[0x0d] = psxBios_strtol;
2515 biosA0[0x0e] = psxBios_abs;
2516 biosA0[0x0f] = psxBios_labs;
2517 biosA0[0x10] = psxBios_atoi;
2518 biosA0[0x11] = psxBios_atol;
2519 //biosA0[0x12] = psxBios_atob;
2520 biosA0[0x13] = psxBios_setjmp;
2521 biosA0[0x14] = psxBios_longjmp;
2522 biosA0[0x15] = psxBios_strcat;
2523 biosA0[0x16] = psxBios_strncat;
2524 biosA0[0x17] = psxBios_strcmp;
2525 biosA0[0x18] = psxBios_strncmp;
2526 biosA0[0x19] = psxBios_strcpy;
2527 biosA0[0x1a] = psxBios_strncpy;
2528 biosA0[0x1b] = psxBios_strlen;
2529 biosA0[0x1c] = psxBios_index;
2530 biosA0[0x1d] = psxBios_rindex;
2531 biosA0[0x1e] = psxBios_strchr;
2532 biosA0[0x1f] = psxBios_strrchr;
2533 biosA0[0x20] = psxBios_strpbrk;
2534 biosA0[0x21] = psxBios_strspn;
2535 biosA0[0x22] = psxBios_strcspn;
2536 biosA0[0x23] = psxBios_strtok;
2537 biosA0[0x24] = psxBios_strstr;
2538 biosA0[0x25] = psxBios_toupper;
2539 biosA0[0x26] = psxBios_tolower;
2540 biosA0[0x27] = psxBios_bcopy;
2541 biosA0[0x28] = psxBios_bzero;
2542 biosA0[0x29] = psxBios_bcmp;
2543 biosA0[0x2a] = psxBios_memcpy;
2544 biosA0[0x2b] = psxBios_memset;
2545 biosA0[0x2c] = psxBios_memmove;
2546 biosA0[0x2d] = psxBios_memcmp;
2547 biosA0[0x2e] = psxBios_memchr;
2548 biosA0[0x2f] = psxBios_rand;
2549 biosA0[0x30] = psxBios_srand;
2550 biosA0[0x31] = psxBios_qsort;
2551 //biosA0[0x32] = psxBios_strtod;
2552 biosA0[0x33] = psxBios_malloc;
2553 biosA0[0x34] = psxBios_free;
2554 //biosA0[0x35] = psxBios_lsearch;
2555 //biosA0[0x36] = psxBios_bsearch;
2556 biosA0[0x37] = psxBios_calloc;
2557 biosA0[0x38] = psxBios_realloc;
2558 biosA0[0x39] = psxBios_InitHeap;
2559 //biosA0[0x3a] = psxBios__exit;
2560 biosA0[0x3b] = psxBios_getchar;
2561 biosA0[0x3c] = psxBios_putchar;
2562 //biosA0[0x3d] = psxBios_gets;
2563 //biosA0[0x40] = psxBios_sys_a0_40;
2564 //biosA0[0x41] = psxBios_LoadTest;
2565 biosA0[0x42] = psxBios_Load;
2566 biosA0[0x43] = psxBios_Exec;
2567 biosA0[0x44] = psxBios_FlushCache;
2568 //biosA0[0x45] = psxBios_InstallInterruptHandler;
2569 biosA0[0x46] = psxBios_GPU_dw;
2570 biosA0[0x47] = psxBios_mem2vram;
2571 biosA0[0x48] = psxBios_SendGPU;
2572 biosA0[0x49] = psxBios_GPU_cw;
2573 biosA0[0x4a] = psxBios_GPU_cwb;
2574 biosA0[0x4b] = psxBios_GPU_SendPackets;
2575 biosA0[0x4c] = psxBios_sys_a0_4c;
2576 biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2577 //biosA0[0x4e] = psxBios_GPU_sync;
2578 //biosA0[0x4f] = psxBios_sys_a0_4f;
2579 //biosA0[0x50] = psxBios_sys_a0_50;
2580 biosA0[0x51] = psxBios_LoadExec;
2581 //biosA0[0x52] = psxBios_GetSysSp;
2582 //biosA0[0x53] = psxBios_sys_a0_53;
2583 //biosA0[0x54] = psxBios__96_init_a54;
2584 //biosA0[0x55] = psxBios__bu_init_a55;
2585 //biosA0[0x56] = psxBios__96_remove_a56;
2586 //biosA0[0x57] = psxBios_sys_a0_57;
2587 //biosA0[0x58] = psxBios_sys_a0_58;
2588 //biosA0[0x59] = psxBios_sys_a0_59;
2589 //biosA0[0x5a] = psxBios_sys_a0_5a;
2590 //biosA0[0x5b] = psxBios_dev_tty_init;
2591 //biosA0[0x5c] = psxBios_dev_tty_open;
2592 //biosA0[0x5d] = psxBios_sys_a0_5d;
2593 //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2594 //biosA0[0x5f] = psxBios_dev_cd_open;
2595 //biosA0[0x60] = psxBios_dev_cd_read;
2596 //biosA0[0x61] = psxBios_dev_cd_close;
2597 //biosA0[0x62] = psxBios_dev_cd_firstfile;
2598 //biosA0[0x63] = psxBios_dev_cd_nextfile;
2599 //biosA0[0x64] = psxBios_dev_cd_chdir;
2600 //biosA0[0x65] = psxBios_dev_card_open;
2601 //biosA0[0x66] = psxBios_dev_card_read;
2602 //biosA0[0x67] = psxBios_dev_card_write;
2603 //biosA0[0x68] = psxBios_dev_card_close;
2604 //biosA0[0x69] = psxBios_dev_card_firstfile;
2605 //biosA0[0x6a] = psxBios_dev_card_nextfile;
2606 //biosA0[0x6b] = psxBios_dev_card_erase;
2607 //biosA0[0x6c] = psxBios_dev_card_undelete;
2608 //biosA0[0x6d] = psxBios_dev_card_format;
2609 //biosA0[0x6e] = psxBios_dev_card_rename;
2610 //biosA0[0x6f] = psxBios_dev_card_6f;
2611 biosA0[0x70] = psxBios__bu_init;
2612 biosA0[0x71] = psxBios__96_init;
2613 biosA0[0x72] = psxBios__96_remove;
2614 //biosA0[0x73] = psxBios_sys_a0_73;
2615 //biosA0[0x74] = psxBios_sys_a0_74;
2616 //biosA0[0x75] = psxBios_sys_a0_75;
2617 //biosA0[0x76] = psxBios_sys_a0_76;
2618 //biosA0[0x77] = psxBios_sys_a0_77;
2619 //biosA0[0x78] = psxBios__96_CdSeekL;
2620 //biosA0[0x79] = psxBios_sys_a0_79;
2621 //biosA0[0x7a] = psxBios_sys_a0_7a;
2622 //biosA0[0x7b] = psxBios_sys_a0_7b;
2623 //biosA0[0x7c] = psxBios__96_CdGetStatus;
2624 //biosA0[0x7d] = psxBios_sys_a0_7d;
2625 //biosA0[0x7e] = psxBios__96_CdRead;
2626 //biosA0[0x7f] = psxBios_sys_a0_7f;
2627 //biosA0[0x80] = psxBios_sys_a0_80;
2628 //biosA0[0x81] = psxBios_sys_a0_81;
2629 //biosA0[0x82] = psxBios_sys_a0_82;
2630 //biosA0[0x83] = psxBios_sys_a0_83;
2631 //biosA0[0x84] = psxBios_sys_a0_84;
2632 //biosA0[0x85] = psxBios__96_CdStop;
2633 //biosA0[0x86] = psxBios_sys_a0_86;
2634 //biosA0[0x87] = psxBios_sys_a0_87;
2635 //biosA0[0x88] = psxBios_sys_a0_88;
2636 //biosA0[0x89] = psxBios_sys_a0_89;
2637 //biosA0[0x8a] = psxBios_sys_a0_8a;
2638 //biosA0[0x8b] = psxBios_sys_a0_8b;
2639 //biosA0[0x8c] = psxBios_sys_a0_8c;
2640 //biosA0[0x8d] = psxBios_sys_a0_8d;
2641 //biosA0[0x8e] = psxBios_sys_a0_8e;
2642 //biosA0[0x8f] = psxBios_sys_a0_8f;
2643 //biosA0[0x90] = psxBios_sys_a0_90;
2644 //biosA0[0x91] = psxBios_sys_a0_91;
2645 //biosA0[0x92] = psxBios_sys_a0_92;
2646 //biosA0[0x93] = psxBios_sys_a0_93;
2647 //biosA0[0x94] = psxBios_sys_a0_94;
2648 //biosA0[0x95] = psxBios_sys_a0_95;
2649 //biosA0[0x96] = psxBios_AddCDROMDevice;
2650 //biosA0[0x97] = psxBios_AddMemCardDevide;
2651 //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2652 //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2653 //biosA0[0x9a] = psxBios_sys_a0_9a;
2654 //biosA0[0x9b] = psxBios_sys_a0_9b;
2655 //biosA0[0x9c] = psxBios_SetConf;
2656 //biosA0[0x9d] = psxBios_GetConf;
2657 //biosA0[0x9e] = psxBios_sys_a0_9e;
2658 biosA0[0x9f] = psxBios_SetMem;
2659 //biosA0[0xa0] = psxBios__boot;
2660 //biosA0[0xa1] = psxBios_SystemError;
2661 //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2662 //biosA0[0xa3] = psxBios_DequeueCdIntr;
2663 //biosA0[0xa4] = psxBios_sys_a0_a4;
2664 //biosA0[0xa5] = psxBios_ReadSector;
2665 //biosA0[0xa6] = psxBios_get_cd_status;
2666 //biosA0[0xa7] = psxBios_bufs_cb_0;
2667 //biosA0[0xa8] = psxBios_bufs_cb_1;
2668 //biosA0[0xa9] = psxBios_bufs_cb_2;
2669 //biosA0[0xaa] = psxBios_bufs_cb_3;
2670 biosA0[0xab] = psxBios__card_info;
2671 biosA0[0xac] = psxBios__card_load;
2672 //biosA0[0axd] = psxBios__card_auto;
2673 //biosA0[0xae] = psxBios_bufs_cd_4;
2674 //biosA0[0xaf] = psxBios_sys_a0_af;
2675 //biosA0[0xb0] = psxBios_sys_a0_b0;
2676 //biosA0[0xb1] = psxBios_sys_a0_b1;
2677 //biosA0[0xb2] = psxBios_do_a_long_jmp
2678 //biosA0[0xb3] = psxBios_sys_a0_b3;
2679 //biosA0[0xb4] = psxBios_sub_function;
2680//*******************B0 CALLS****************************
2681 //biosB0[0x00] = psxBios_SysMalloc;
2682 //biosB0[0x01] = psxBios_sys_b0_01;
2683 biosB0[0x02] = psxBios_SetRCnt;
2684 biosB0[0x03] = psxBios_GetRCnt;
2685 biosB0[0x04] = psxBios_StartRCnt;
2686 biosB0[0x05] = psxBios_StopRCnt;
2687 biosB0[0x06] = psxBios_ResetRCnt;
2688 biosB0[0x07] = psxBios_DeliverEvent;
2689 biosB0[0x08] = psxBios_OpenEvent;
2690 biosB0[0x09] = psxBios_CloseEvent;
2691 biosB0[0x0a] = psxBios_WaitEvent;
2692 biosB0[0x0b] = psxBios_TestEvent;
2693 biosB0[0x0c] = psxBios_EnableEvent;
2694 biosB0[0x0d] = psxBios_DisableEvent;
2695 biosB0[0x0e] = psxBios_OpenTh;
2696 biosB0[0x0f] = psxBios_CloseTh;
2697 biosB0[0x10] = psxBios_ChangeTh;
2698 //biosB0[0x11] = psxBios_psxBios_b0_11;
2699 biosB0[0x12] = psxBios_InitPAD;
2700 biosB0[0x13] = psxBios_StartPAD;
2701 biosB0[0x14] = psxBios_StopPAD;
2702 biosB0[0x15] = psxBios_PAD_init;
2703 biosB0[0x16] = psxBios_PAD_dr;
2704 biosB0[0x17] = psxBios_ReturnFromException;
2705 biosB0[0x18] = psxBios_ResetEntryInt;
2706 biosB0[0x19] = psxBios_HookEntryInt;
2707 //biosB0[0x1a] = psxBios_sys_b0_1a;
2708 //biosB0[0x1b] = psxBios_sys_b0_1b;
2709 //biosB0[0x1c] = psxBios_sys_b0_1c;
2710 //biosB0[0x1d] = psxBios_sys_b0_1d;
2711 //biosB0[0x1e] = psxBios_sys_b0_1e;
2712 //biosB0[0x1f] = psxBios_sys_b0_1f;
2713 biosB0[0x20] = psxBios_UnDeliverEvent;
2714 //biosB0[0x21] = psxBios_sys_b0_21;
2715 //biosB0[0x22] = psxBios_sys_b0_22;
2716 //biosB0[0x23] = psxBios_sys_b0_23;
2717 //biosB0[0x24] = psxBios_sys_b0_24;
2718 //biosB0[0x25] = psxBios_sys_b0_25;
2719 //biosB0[0x26] = psxBios_sys_b0_26;
2720 //biosB0[0x27] = psxBios_sys_b0_27;
2721 //biosB0[0x28] = psxBios_sys_b0_28;
2722 //biosB0[0x29] = psxBios_sys_b0_29;
2723 //biosB0[0x2a] = psxBios_sys_b0_2a;
2724 //biosB0[0x2b] = psxBios_sys_b0_2b;
2725 //biosB0[0x2c] = psxBios_sys_b0_2c;
2726 //biosB0[0x2d] = psxBios_sys_b0_2d;
2727 //biosB0[0x2e] = psxBios_sys_b0_2e;
2728 //biosB0[0x2f] = psxBios_sys_b0_2f;
2729 //biosB0[0x30] = psxBios_sys_b0_30;
2730 //biosB0[0x31] = psxBios_sys_b0_31;
2731 biosB0[0x32] = psxBios_open;
2732 biosB0[0x33] = psxBios_lseek;
2733 biosB0[0x34] = psxBios_read;
2734 biosB0[0x35] = psxBios_write;
2735 biosB0[0x36] = psxBios_close;
2736 //biosB0[0x37] = psxBios_ioctl;
2737 //biosB0[0x38] = psxBios_exit;
2738 //biosB0[0x39] = psxBios_sys_b0_39;
2739 //biosB0[0x3a] = psxBios_getc;
2740 //biosB0[0x3b] = psxBios_putc;
2741 biosB0[0x3c] = psxBios_getchar;
2742 //biosB0[0x3e] = psxBios_gets;
2743 //biosB0[0x40] = psxBios_cd;
e7e1f572 2744 biosB0[0x41] = psxBios_format;
ef79bbde
P		 2745 biosB0[0x42] = psxBios_firstfile;
2746 biosB0[0x43] = psxBios_nextfile;
2747 biosB0[0x44] = psxBios_rename;
2748 biosB0[0x45] = psxBios_delete;
2749 //biosB0[0x46] = psxBios_undelete;
2750 //biosB0[0x47] = psxBios_AddDevice;
2751 //biosB0[0x48] = psxBios_RemoteDevice;
2752 //biosB0[0x49] = psxBios_PrintInstalledDevices;
2753 biosB0[0x4a] = psxBios_InitCARD;
2754 biosB0[0x4b] = psxBios_StartCARD;
2755 biosB0[0x4c] = psxBios_StopCARD;
2756 //biosB0[0x4d] = psxBios_sys_b0_4d;
2757 biosB0[0x4e] = psxBios__card_write;
2758 biosB0[0x4f] = psxBios__card_read;
2759 biosB0[0x50] = psxBios__new_card;
2760 biosB0[0x51] = psxBios_Krom2RawAdd;
2761 //biosB0[0x52] = psxBios_sys_b0_52;
2762 //biosB0[0x53] = psxBios_sys_b0_53;
2763 //biosB0[0x54] = psxBios__get_errno;
2764 //biosB0[0x55] = psxBios__get_error;
2765 biosB0[0x56] = psxBios_GetC0Table;
2766 biosB0[0x57] = psxBios_GetB0Table;
e9fda093 2767 biosB0[0x58] = psxBios__card_chan;
ef79bbde
P		 2768 //biosB0[0x59] = psxBios_sys_b0_59;
2769 //biosB0[0x5a] = psxBios_sys_b0_5a;
2770 biosB0[0x5b] = psxBios_ChangeClearPad;
2771 //biosB0[0x5c] = psxBios__card_status;
2772 //biosB0[0x5d] = psxBios__card_wait;
2773//*******************C0 CALLS****************************
2774 //biosC0[0x00] = psxBios_InitRCnt;
2775 //biosC0[0x01] = psxBios_InitException;
2776 biosC0[0x02] = psxBios_SysEnqIntRP;
2777 biosC0[0x03] = psxBios_SysDeqIntRP;
2778 //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2779 //biosC0[0x05] = psxBios_get_free_TCB_slot;
2780 //biosC0[0x06] = psxBios_ExceptionHandler;
2781 //biosC0[0x07] = psxBios_InstallExeptionHandler;
2782 //biosC0[0x08] = psxBios_SysInitMemory;
2783 //biosC0[0x09] = psxBios_SysInitKMem;
2784 biosC0[0x0a] = psxBios_ChangeClearRCnt;
2785 //biosC0[0x0b] = psxBios_SystemError;
2786 //biosC0[0x0c] = psxBios_InitDefInt;
2787 //biosC0[0x0d] = psxBios_sys_c0_0d;
2788 //biosC0[0x0e] = psxBios_sys_c0_0e;
2789 //biosC0[0x0f] = psxBios_sys_c0_0f;
2790 //biosC0[0x10] = psxBios_sys_c0_10;
2791 //biosC0[0x11] = psxBios_sys_c0_11;
2792 //biosC0[0x12] = psxBios_InstallDevices;
2793 //biosC0[0x13] = psxBios_FlushStfInOutPut;
2794 //biosC0[0x14] = psxBios_sys_c0_14;
2795 //biosC0[0x15] = psxBios__cdevinput;
2796 //biosC0[0x16] = psxBios__cdevscan;
2797 //biosC0[0x17] = psxBios__circgetc;
2798 //biosC0[0x18] = psxBios__circputc;
2799 //biosC0[0x19] = psxBios_ioabort;
2800 //biosC0[0x1a] = psxBios_sys_c0_1a
2801 //biosC0[0x1b] = psxBios_KernelRedirect;
2802 //biosC0[0x1c] = psxBios_PatchAOTable;
2803//************** THE END ***************************************
2804/**/
2805 base = 0x1000;
2806 size = sizeof(EvCB) * 32;
2807 Event = (void *)&psxR[base]; base += size * 6;
2808 memset(Event, 0, size * 6);
2809 HwEV = Event;
2810 EvEV = Event + 32;
2811 RcEV = Event + 32 * 2;
2812 UeEV = Event + 32 * 3;
2813 SwEV = Event + 32 * 4;
2814 ThEV = Event + 32 * 5;
2815
2816 ptr = (u32 *)&psxM[0x0874]; // b0 table
2817 ptr[0] = SWAPu32(0x4c54 - 0x884);
2818
2819 ptr = (u32 *)&psxM[0x0674]; // c0 table
2820 ptr[6] = SWAPu32(0xc80);
2821
2822 memset(SysIntRP, 0, sizeof(SysIntRP));
2823 memset(Thread, 0, sizeof(Thread));
2824 Thread[0].status = 2; // main thread
2825
c62b43c9 2826 jmp_int = NULL;
2827 pad_buf = NULL;
2828 pad_buf1 = NULL;
2829 pad_buf2 = NULL;
2830 pad_buf1len = pad_buf2len = 0;
2831 heap_addr = NULL;
2832 heap_end = NULL;
2833 CardState = -1;
2834 CurThread = 0;
2835 memset(FDesc, 0, sizeof(FDesc));
2836
ef79bbde
P		 2837 psxMu32ref(0x0150) = SWAPu32(0x160);
2838 psxMu32ref(0x0154) = SWAPu32(0x320);
2839 psxMu32ref(0x0160) = SWAPu32(0x248);
2840 strcpy((char *)&psxM[0x248], "bu");
2841/* psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
2842 psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
2843 psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
2844 psxMu32ref(0x09e0) = SWAPu32(0x43d0);
2845 psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
2846*/
2847 // opcode HLE
2848 psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
2849 psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
2850 psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
2851 psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
2852 psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
2853 psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
2854 psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
2855 psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
2856 psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
2857 psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
2858
2859 // initial stack pointer for BIOS interrupt
2860 psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
2861
2862 // initial RNG seed
2863 psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
2864
2865 // fonts
2866 len = 0x80000 - 0x66000;
2867 uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
2868 len = 0x80000 - 0x69d68;
2869 uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
2870
2871 // memory size 2 MB
2872 psxHu32ref(0x1060) = SWAPu32(0x00000b88);
2873
2874 hleSoftCall = FALSE;
2875}
2876
2877void psxBiosShutdown() {
2878}
2879
2880#define psxBios_PADpoll(pad) { \
2881 PAD##pad##_startPoll(pad); \
2882 pad_buf##pad[0] = 0; \
2883 pad_buf##pad[1] = PAD##pad##_poll(0x42); \
2884 if (!(pad_buf##pad[1] & 0x0f)) { \
2885 bufcount = 32; \
2886 } else { \
2887 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
2888 } \
2889 PAD##pad##_poll(0); \
2890 i = 2; \
2891 while (bufcount--) { \
2892 pad_buf##pad[i++] = PAD##pad##_poll(0); \
2893 } \
2894}
2895
2896void biosInterrupt() {
2897 int i, bufcount;
2898
2899// if (psxHu32(0x1070) & 0x1) { // Vsync
2900 if (pad_buf != NULL) {
2901 u32 *buf = (u32*)pad_buf;
2902
2903 if (!Config.UseNet) {
2904 PAD1_startPoll(1);
2905 if (PAD1_poll(0x42) == 0x23) {
2906 PAD1_poll(0);
2907 *buf = PAD1_poll(0) << 8;
2908 *buf |= PAD1_poll(0);
2909 PAD1_poll(0);
2910 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
2911 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
2912 } else {
2913 PAD1_poll(0);
2914 *buf = PAD1_poll(0) << 8;
2915 *buf|= PAD1_poll(0);
2916 }
2917
2918 PAD2_startPoll(2);
2919 if (PAD2_poll(0x42) == 0x23) {
2920 PAD2_poll(0);
2921 *buf |= PAD2_poll(0) << 24;
2922 *buf |= PAD2_poll(0) << 16;
2923 PAD2_poll(0);
2924 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
2925 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
2926 } else {
2927 PAD2_poll(0);
2928 *buf |= PAD2_poll(0) << 24;
2929 *buf |= PAD2_poll(0) << 16;
2930 }
2931 } else {
2932 u16 data;
2933
2934 PAD1_startPoll(1);
2935 PAD1_poll(0x42);
2936 PAD1_poll(0);
2937 data = PAD1_poll(0) << 8;
2938 data |= PAD1_poll(0);
2939
2940 if (NET_sendPadData(&data, 2) == -1)
2941 netError();
2942
2943 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
2944 netError();
2945 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
2946 netError();
2947 }
2948 }
2949 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
2950 psxBios_PADpoll(1);
2951
2952 if (NET_sendPadData(pad_buf1, i) == -1)
2953 netError();
2954
2955 if (NET_recvPadData(pad_buf1, 1) == -1)
2956 netError();
2957 if (NET_recvPadData(pad_buf2, 2) == -1)
2958 netError();
2959 } else {
2960 if (pad_buf1) {
2961 psxBios_PADpoll(1);
2962 }
2963
2964 if (pad_buf2) {
2965 psxBios_PADpoll(2);
2966 }
2967 }
2968
2969 if (psxHu32(0x1070) & 0x1) { // Vsync
2970 if (RcEV[3][1].status == EvStACTIVE) {
2971 softCall(RcEV[3][1].fhandler);
2972// hwWrite32(0x1f801070, ~(1));
2973 }
2974 }
2975
2976 if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
2977 int i;
2978
2979 for (i = 0; i < 3; i++) {
2980 if (psxHu32(0x1070) & (1 << (i + 4))) {
2981 if (RcEV[i][1].status == EvStACTIVE) {
2982 softCall(RcEV[i][1].fhandler);
2983 }
2984 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
2985 }
2986 }
2987 }
2988}
2989
2990void psxBiosException() {
2991 int i;
2992
2993 switch (psxRegs.CP0.n.Cause & 0x3c) {
2994 case 0x00: // Interrupt
2995#ifdef PSXCPU_LOG
2996// PSXCPU_LOG("interrupt\n");
2997#endif
2998 SaveRegs();
2999
3000 sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3001
3002 biosInterrupt();
3003
3004 for (i = 0; i < 8; i++) {
3005 if (SysIntRP[i]) {
3006 u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3007
3008 s0 = queue[2];
3009 softCall(queue[1]);
3010 }
3011 }
3012
3013 if (jmp_int != NULL) {
3014 int i;
3015
3016 psxHwWrite32(0x1f801070, 0xffffffff);
3017
3018 ra = jmp_int[0];
3019 sp = jmp_int[1];
3020 fp = jmp_int[2];
3021 for (i = 0; i < 8; i++) // s0-s7
3022 psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3023 gp = jmp_int[11];
3024
3025 v0 = 1;
3026 pc0 = ra;
3027 return;
3028 }
3029 psxHwWrite16(0x1f801070, 0);
3030 break;
3031
3032 case 0x20: // Syscall
3033#ifdef PSXCPU_LOG
3034 PSXCPU_LOG("syscall exp %x\n", a0);
3035#endif
3036 switch (a0) {
3037 case 1: // EnterCritical - disable irq's
79dad1b3 3038 /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3039 v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3040 psxRegs.CP0.n.Status &= ~0x404;
ef79bbde
P		 3041 break;
3042
3043 case 2: // ExitCritical - enable irq's
3044 psxRegs.CP0.n.Status |= 0x404;
3045 break;
3046 }
3047 pc0 = psxRegs.CP0.n.EPC + 4;
3048
3049 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3050 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3051 return;
3052
3053 default:
3054#ifdef PSXCPU_LOG
3055 PSXCPU_LOG("unknown bios exception!\n");
3056#endif
3057 break;
3058 }
3059
3060 pc0 = psxRegs.CP0.n.EPC;
3061 if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3062
3063 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3064 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3065}
3066
3067#define bfreeze(ptr, size) { \
3068 if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3069 if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3070 base += size; \
3071}
3072
3073#define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3074#define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3075
3076#define bfreezepsxMptr(ptr, type) { \
3077 if (Mode == 1) { \
3078 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3079 else psxRu32ref(base) = 0; \
3080 } else { \
3081 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3082 else (ptr) = NULL; \
3083 } \
3084 base += sizeof(u32); \
3085}
3086
3087void psxBiosFreeze(int Mode) {
3088 u32 base = 0x40000;
3089
3090 bfreezepsxMptr(jmp_int, u32);
3091 bfreezepsxMptr(pad_buf, int);
3092 bfreezepsxMptr(pad_buf1, char);
3093 bfreezepsxMptr(pad_buf2, char);
3094 bfreezepsxMptr(heap_addr, u32);
3095 bfreezel(&pad_buf1len);
3096 bfreezel(&pad_buf2len);
3097 bfreezes(regs);
3098 bfreezes(SysIntRP);
3099 bfreezel(&CardState);
3100 bfreezes(Thread);
3101 bfreezel(&CurThread);
3102 bfreezes(FDesc);
e9fda093 3103 bfreezel(&card_active_chan);
ef79bbde 3104}
ARM optimized PCSX fork