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psxbios: Merge PCSX4ALL pad_stopped fix.
[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;
f25c285b 248static int pad_stopped = 0;
ef79bbde
P		 249
250static u32 regs[35];
251static EvCB *Event;
252static EvCB *HwEV; // 0xf0
253static EvCB *EvEV; // 0xf1
254static EvCB *RcEV; // 0xf2
255static EvCB *UeEV; // 0xf3
256static EvCB *SwEV; // 0xf4
257static EvCB *ThEV; // 0xff
26b964b5 258static u32 heap_size = 0;
ef79bbde
P		 259static u32 *heap_addr = NULL;
260static u32 *heap_end = NULL;
261static u32 SysIntRP[8];
262static int CardState = -1;
263static TCB Thread[8];
264static int CurThread = 0;
265static FileDesc FDesc[32];
e9fda093 266static u32 card_active_chan;
ef79bbde
P		 267
268boolean hleSoftCall = FALSE;
269
270static inline void softCall(u32 pc) {
271 pc0 = pc;
272 ra = 0x80001000;
273
274 hleSoftCall = TRUE;
275
276 while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
277
278 hleSoftCall = FALSE;
279}
280
281static inline void softCall2(u32 pc) {
282 u32 sra = ra;
283 pc0 = pc;
284 ra = 0x80001000;
285
286 hleSoftCall = TRUE;
287
288 while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
289 ra = sra;
290
291 hleSoftCall = FALSE;
292}
293
294static inline void DeliverEvent(u32 ev, u32 spec) {
295 if (Event[ev][spec].status != EvStACTIVE) return;
296
297// Event[ev][spec].status = EvStALREADY;
298 if (Event[ev][spec].mode == EvMdINTR) {
299 softCall2(Event[ev][spec].fhandler);
300 } else Event[ev][spec].status = EvStALREADY;
301}
302
303static inline void SaveRegs() {
304 memcpy(regs, psxRegs.GPR.r, 32*4);
305 regs[32] = psxRegs.GPR.n.lo;
306 regs[33] = psxRegs.GPR.n.hi;
307 regs[34] = psxRegs.pc;
308}
309
310static inline void LoadRegs() {
311 memcpy(psxRegs.GPR.r, regs, 32*4);
312 psxRegs.GPR.n.lo = regs[32];
313 psxRegs.GPR.n.hi = regs[33];
314}
315
316/* *
317// *
318// *
319// System calls A0 */
320
d99f6068 321
322#define buread(Ra1, mcd, length) { \
323 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); \
324 ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
325 memcpy(Ra1, ptr, length); \
f1514614 326 if (FDesc[1 + mcd].mode & 0x8000) { \
d99f6068 327 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
328 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
f1514614 329 v0 = 0; } \
d99f6068 330 else v0 = length; \
331 FDesc[1 + mcd].offset += v0; \
332}
333
334#define buwrite(Ra1, mcd, length) { \
335 u32 offset = + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
336 SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
337 ptr = Mcd##mcd##Data + offset; \
338 memcpy(ptr, Ra1, length); \
f1514614 339 FDesc[1 + mcd].offset += length; \
340 if (FDesc[1 + mcd].mode & 0x8000) { \
d99f6068 341 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
342 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
f1514614 343 v0 = 0; } \
d99f6068 344 else v0 = length; \
345}
346
347
324cec89 348/* Internally redirects to "FileRead(fd,tempbuf,1)".*/
349/* For some strange reason, the returned character is sign-expanded; */
350/* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
351/* TODO FIX ME : Properly implement this behaviour */
352void psxBios_getc(void) // 0x03, 0x35
353{
d99f6068 354 char *ptr;
324cec89 355 void *pa1 = Ra1;
356#ifdef PSXBIOS_LOG
357 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
358#endif
359 v0 = -1;
360
361 if (pa1) {
362 switch (a0) {
363 case 2: buread(pa1, 1, 1); break;
364 case 3: buread(pa1, 2, 1); break;
365 }
366 }
367
368 pc0 = ra;
369}
370
371/* Copy of psxBios_write, except size is 1. */
372void psxBios_putc(void) // 0x09, 0x3B
373{
d99f6068 374 char *ptr;
324cec89 375 void *pa1 = Ra1;
376#ifdef PSXBIOS_LOG
377 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
378#endif
379 v0 = -1;
380 if (!pa1) {
381 pc0 = ra;
382 return;
383 }
384
385 if (a0 == 1) { // stdout
386 char *ptr = (char *)pa1;
387
388 v0 = a2;
389 while (a2 > 0) {
390 printf("%c", *ptr++); a2--;
391 }
392 pc0 = ra; return;
393 }
394
395 switch (a0) {
396 case 2: buwrite(pa1, 1, 1); break;
397 case 3: buwrite(pa1, 2, 1); break;
398 }
399
400 pc0 = ra;
401}
ef79bbde 402
ba11675c 403void psxBios_todigit(void) // 0x0a
404{
405 int c = a0;
406#ifdef PSXBIOS_LOG
407 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
408#endif
409 c &= 0xFF;
410 if (c >= 0x30 && c < 0x3A) {
411 c -= 0x30;
412 }
413 else if (c > 0x60 && c < 0x7B) {
414 c -= 0x20;
415 }
416 else if (c > 0x40 && c < 0x5B) {
417 c = c - 0x41 + 10;
418 }
419 else if (c >= 0x80) {
420 c = -1;
421 }
422 else
423 {
424 c = 0x0098967F;
425 }
426 v0 = c;
427 pc0 = ra;
428}
429
ef79bbde
P		 430void psxBios_abs() { // 0x0e
431 if ((s32)a0 < 0) v0 = -(s32)a0;
432 else v0 = a0;
433 pc0 = ra;
434}
435
436void psxBios_labs() { // 0x0f
437 psxBios_abs();
438}
439
440void psxBios_atoi() { // 0x10
441 s32 n = 0, f = 0;
442 char *p = (char *)Ra0;
443
444 for (;;p++) {
445 switch (*p) {
446 case ' ': case '\t': continue;
447 case '-': f++;
448 case '+': p++;
449 }
450 break;
451 }
452
453 while (*p >= '0' && *p <= '9') {
454 n = n * 10 + *p++ - '0';
455 }
456
457 v0 = (f ? -n : n);
458 pc0 = ra;
459}
460
461void psxBios_atol() { // 0x11
462 psxBios_atoi();
463}
464
465void psxBios_setjmp() { // 0x13
466 u32 *jmp_buf = (u32 *)Ra0;
467 int i;
468
469#ifdef PSXBIOS_LOG
470 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
471#endif
472
473 jmp_buf[0] = ra;
474 jmp_buf[1] = sp;
475 jmp_buf[2] = fp;
476 for (i = 0; i < 8; i++) // s0-s7
477 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
478 jmp_buf[11] = gp;
479
480 v0 = 0; pc0 = ra;
481}
482
483void psxBios_longjmp() { // 0x14
484 u32 *jmp_buf = (u32 *)Ra0;
485 int i;
486
487#ifdef PSXBIOS_LOG
488 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
489#endif
490
491 ra = jmp_buf[0]; /* ra */
492 sp = jmp_buf[1]; /* sp */
493 fp = jmp_buf[2]; /* fp */
494 for (i = 0; i < 8; i++) // s0-s7
495 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
496 gp = jmp_buf[11]; /* gp */
497
498 v0 = a1; pc0 = ra;
499}
500
501void psxBios_strcat() { // 0x15
502 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
503
504#ifdef PSXBIOS_LOG
505 PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
506#endif
bee52312 507 if (a0 == 0 || a1 == 0)
508 {
509 v0 = 0;
510 pc0 = ra;
511 return;
512 }
ef79bbde
P		 513 while (*p1++);
514 --p1;
515 while ((*p1++ = *p2++) != '\0');
516
517 v0 = a0; pc0 = ra;
518}
519
520void psxBios_strncat() { // 0x16
521 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
522 s32 n = a2;
523
524#ifdef PSXBIOS_LOG
525 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
526#endif
f42e1e90 527 if (a0 == 0 || a1 == 0)
528 {
529 v0 = 0;
530 pc0 = ra;
531 return;
532 }
ef79bbde
P		 533 while (*p1++);
534 --p1;
535 while ((*p1++ = *p2++) != '\0') {
536 if (--n < 0) {
537 *--p1 = '\0';
538 break;
539 }
540 }
541
542 v0 = a0; pc0 = ra;
543}
544
545void psxBios_strcmp() { // 0x17
546 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
c044e3e5 547 s32 n=0;
548 if (a0 == 0 && a1 == 0)
549 {
550 v0 = 0;
551 pc0 = ra;
552 return;
553 }
554 else if (a0 == 0 && a1 != 0)
555 {
556 v0 = -1;
557 pc0 = ra;
558 return;
559 }
560 else if (a0 != 0 && a1 == 0)
561 {
562 v0 = 1;
563 pc0 = ra;
564 return;
565 }
ef79bbde
P		 566#ifdef PSXBIOS_LOG
567 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
568#endif
569
570 while (*p1 == *p2++) {
c044e3e5 571 n++;
ef79bbde 572 if (*p1++ == '\0') {
c044e3e5 573 v1=n-1;
574 a0+=n;
575 a1+=n;
ef79bbde
P		 576 v0 = 0;
577 pc0 = ra;
578 return;
579 }
580 }
581
582 v0 = (*p1 - *--p2);
c044e3e5 583 v1 = n;
584 a0+=n;
585 a1+=n;
ef79bbde
P		 586 pc0 = ra;
587}
588
589void psxBios_strncmp() { // 0x18
590 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
591 s32 n = a2;
ba4ecb8c 592 if (a0 == 0 && a1 == 0)
593 {
594 v0 = 0;
595 pc0 = ra;
596 return;
597 }
598 else if (a0 == 0 && a1 != 0)
599 {
600 v0 = -1;
601 pc0 = ra;
602 return;
603 }
604 else if (a0 != 0 && a1 == 0)
605 {
606 v0 = 1;
607 pc0 = ra;
608 return;
609 }
ef79bbde
P		 610#ifdef PSXBIOS_LOG
611 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
612#endif
613
614 while (--n >= 0 && *p1 == *p2++) {
615 if (*p1++ == '\0') {
616 v0 = 0;
617 pc0 = ra;
ba4ecb8c 618 v1 = a2 - ((a2-n) - 1);
619 a0 += (a2-n) - 1;
620 a1 += (a2-n) - 1;
621 a2 = n;
ef79bbde
P		 622 return;
623 }
624 }
625
626 v0 = (n < 0 ? 0 : *p1 - *--p2);
627 pc0 = ra;
ba4ecb8c 628 v1 = a2 - ((a2-n) - 1);
629 a0 += (a2-n) - 1;
630 a1 += (a2-n) - 1;
631 a2 = n;
ef79bbde
P		 632}
633
634void psxBios_strcpy() { // 0x19
635 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
c3d791f1 636 if (a0 == 0 || a1 == 0)
637 {
638 v0 = 0;
639 pc0 = ra;
640 return;
641 }
ef79bbde
P		 642 while ((*p1++ = *p2++) != '\0');
643
644 v0 = a0; pc0 = ra;
645}
646
647void psxBios_strncpy() { // 0x1a
648 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
649 s32 n = a2, i;
c3d791f1 650 if (a0 == 0 || a1 == 0)
651 {
652 v0 = 0;
653 pc0 = ra;
654 return;
655 }
ef79bbde
P		 656 for (i = 0; i < n; i++) {
657 if ((*p1++ = *p2++) == '\0') {
658 while (++i < n) {
659 *p1++ = '\0';
660 }
661 v0 = a0; pc0 = ra;
662 return;
663 }
664 }
665
666 v0 = a0; pc0 = ra;
667}
668
669void psxBios_strlen() { // 0x1b
670 char *p = (char *)Ra0;
671 v0 = 0;
2c6a5df8 672 if (a0 == 0)
673 {
674 pc0 = ra;
675 return;
676 }
ef79bbde
P		 677 while (*p++) v0++;
678 pc0 = ra;
679}
680
681void psxBios_index() { // 0x1c
682 char *p = (char *)Ra0;
fcf7ec6c 683 if (a0 == 0)
684 {
685 v0 = 0;
686 pc0 = ra;
687 return;
688 }
689
ef79bbde
P		 690 do {
691 if (*p == a1) {
692 v0 = a0 + (p - (char *)Ra0);
693 pc0 = ra;
694 return;
695 }
696 } while (*p++ != '\0');
697
698 v0 = 0; pc0 = ra;
699}
700
701void psxBios_rindex() { // 0x1d
702 char *p = (char *)Ra0;
703
704 v0 = 0;
fcf7ec6c 705 if (a0 == 0)
706 {
707 pc0 = ra;
708 return;
709 }
ef79bbde
P		 710 do {
711 if (*p == a1)
712 v0 = a0 + (p - (char *)Ra0);
713 } while (*p++ != '\0');
714
715 pc0 = ra;
716}
717
718void psxBios_strchr() { // 0x1e
719 psxBios_index();
720}
721
722void psxBios_strrchr() { // 0x1f
723 psxBios_rindex();
724}
725
726void psxBios_strpbrk() { // 0x20
727 char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
728
729 while ((c = *p1++) != '\0') {
730 for (scanp = p2; (sc = *scanp++) != '\0';) {
731 if (sc == c) {
732 v0 = a0 + (p1 - 1 - (char *)Ra0);
733 pc0 = ra;
734 return;
735 }
736 }
737 }
738
739 // BUG: return a0 instead of NULL if not found
740 v0 = a0; pc0 = ra;
741}
742
743void psxBios_strspn() { // 0x21
744 char *p1, *p2;
745
746 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
747 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
748 if (*p2 == '\0') break;
749 }
750
751 v0 = p1 - (char *)Ra0; pc0 = ra;
752}
753
754void psxBios_strcspn() { // 0x22
755 char *p1, *p2;
756
757 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
758 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
759 if (*p2 != '\0') break;
760 }
761
762 v0 = p1 - (char *)Ra0; pc0 = ra;
763}
764
765void psxBios_strtok() { // 0x23
766 char *pcA0 = (char *)Ra0;
767 char *pcRet = strtok(pcA0, (char *)Ra1);
768 if (pcRet)
769 v0 = a0 + pcRet - pcA0;
770 else
771 v0 = 0;
772 pc0 = ra;
773}
774
775void psxBios_strstr() { // 0x24
776 char *p = (char *)Ra0, *p1, *p2;
777
778 while (*p != '\0') {
779 p1 = p;
780 p2 = (char *)Ra1;
781
782 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
783 p1++; p2++;
784 }
785
786 if (*p2 == '\0') {
787 v0 = a0 + (p - (char *)Ra0);
788 pc0 = ra;
789 return;
790 }
791
792 p++;
793 }
794
795 v0 = 0; pc0 = ra;
796}
797
798void psxBios_toupper() { // 0x25
799 v0 = (s8)(a0 & 0xff);
800 if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
801 pc0 = ra;
802}
803
804void psxBios_tolower() { // 0x26
805 v0 = (s8)(a0 & 0xff);
806 if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
807 pc0 = ra;
808}
809
810void psxBios_bcopy() { // 0x27
811 char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
0148ffb7 812 v0 = a0;
813 if (a0 == 0 || a2 > 0x7FFFFFFF)
814 {
815 pc0 = ra;
816 return;
817 }
5ec7acdf 818 while ((s32)a2-- > 0) *p1++ = *p2++;
0148ffb7 819 a2 = 0;
ef79bbde
P		 820 pc0 = ra;
821}
822
823void psxBios_bzero() { // 0x28
824 char *p = (char *)Ra0;
01724d23 825 v0 = a0;
826 /* Same as memset here (See memset below) */
827 if (a1 > 0x7FFFFFFF || a1 == 0)
828 {
829 v0 = 0;
830 pc0 = ra;
831 return;
832 }
833 else if (a0 == 0)
834 {
835 pc0 = ra;
836 return;
837 }
5ec7acdf 838 while ((s32)a1-- > 0) *p++ = '\0';
01724d23 839 a1 = 0;
ef79bbde
P		 840 pc0 = ra;
841}
842
843void psxBios_bcmp() { // 0x29
844 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
845
846 if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
847
5ec7acdf 848 while ((s32)a2-- > 0) {
ef79bbde
P		 849 if (*p1++ != *p2++) {
850 v0 = *p1 - *p2; // BUG: compare the NEXT byte
851 pc0 = ra;
852 return;
853 }
854 }
855
856 v0 = 0; pc0 = ra;
857}
858
859void psxBios_memcpy() { // 0x2a
860 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
ef1da3dc 861 s32 n=0;
862 v0 = a0;
863 if (a0 == 0 || a2 > 0x7FFFFFFF)
864 {
865 pc0 = ra;
866 return;
867 }
868 while ((s32)a2-- > 0) {
869 n++;
870 *p1++ = *p2++;
871 }
872 a2 = 0;
873 pc0 = ra;
ef79bbde
P		 874}
875
876void psxBios_memset() { // 0x2b
877 char *p = (char *)Ra0;
3f28b64f 878 v0 = a0;
879 if (a2 > 0x7FFFFFFF || a2 == 0)
880 {
881 v0 = 0;
882 pc0 = ra;
883 return;
884 }
885 if (a0 == 0)
886 {
887 pc0 = ra;
888 return;
889 }
5ec7acdf 890 while ((s32)a2-- > 0) *p++ = (char)a1;
5ec7acdf 891 a2 = 0;
ef79bbde
P		 892 v0 = a0; pc0 = ra;
893}
894
895void psxBios_memmove() { // 0x2c
896 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
112dddf5 897 v0 = a0;
898 if (a0 == 0 || a2 > 0x7FFFFFFF)
899 {
900 pc0 = ra;
901 return;
902 }
ef79bbde
P		 903 if (p2 <= p1 && p2 + a2 > p1) {
904 a2++; // BUG: copy one more byte here
905 p1 += a2;
906 p2 += a2;
5ec7acdf 907 while ((s32)a2-- > 0) *--p1 = *--p2;
ef79bbde 908 } else {
5ec7acdf 909 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde 910 }
112dddf5 911 pc0 = ra;
ef79bbde
P		 912}
913
914void psxBios_memcmp() { // 0x2d
915 psxBios_bcmp();
916}
917
918void psxBios_memchr() { // 0x2e
919 char *p = (char *)Ra0;
920
5ec7acdf 921 while ((s32)a2-- > 0) {
ef79bbde
P		 922 if (*p++ != (s8)a1) continue;
923 v0 = a0 + (p - (char *)Ra0 - 1);
924 pc0 = ra;
925 return;
926 }
927
928 v0 = 0; pc0 = ra;
929}
930
931void psxBios_rand() { // 0x2f
932 u32 s = psxMu32(0x9010) * 1103515245 + 12345;
933 v0 = (s >> 16) & 0x7fff;
934 psxMu32ref(0x9010) = SWAPu32(s);
935 pc0 = ra;
936}
937
938void psxBios_srand() { // 0x30
939 psxMu32ref(0x9010) = SWAPu32(a0);
940 pc0 = ra;
941}
942
943static u32 qscmpfunc, qswidth;
944
945static inline int qscmp(char *a, char *b) {
946 u32 sa0 = a0;
947
948 a0 = sa0 + (a - (char *)PSXM(sa0));
949 a1 = sa0 + (b - (char *)PSXM(sa0));
950
951 softCall2(qscmpfunc);
952
953 a0 = sa0;
954 return (s32)v0;
955}
956
957static inline void qexchange(char *i, char *j) {
958 char t;
959 int n = qswidth;
960
961 do {
962 t = *i;
963 *i++ = *j;
964 *j++ = t;
965 } while (--n);
966}
967
968static inline void q3exchange(char *i, char *j, char *k) {
969 char t;
970 int n = qswidth;
971
972 do {
973 t = *i;
974 *i++ = *k;
975 *k++ = *j;
976 *j++ = t;
977 } while (--n);
978}
979
980static void qsort_main(char *a, char *l) {
981 char *i, *j, *lp, *hp;
982 int c;
983 unsigned int n;
984
985start:
986 if ((n = l - a) <= qswidth)
987 return;
988 n = qswidth * (n / (2 * qswidth));
989 hp = lp = a + n;
990 i = a;
991 j = l - qswidth;
992 while (TRUE) {
993 if (i < lp) {
994 if ((c = qscmp(i, lp)) == 0) {
995 qexchange(i, lp -= qswidth);
996 continue;
997 }
998 if (c < 0) {
999 i += qswidth;
1000 continue;
1001 }
1002 }
1003
1004loop:
1005 if (j > hp) {
1006 if ((c = qscmp(hp, j)) == 0) {
1007 qexchange(hp += qswidth, j);
1008 goto loop;
1009 }
1010 if (c > 0) {
1011 if (i == lp) {
1012 q3exchange(i, hp += qswidth, j);
1013 i = lp += qswidth;
1014 goto loop;
1015 }
1016 qexchange(i, j);
1017 j -= qswidth;
1018 i += qswidth;
1019 continue;
1020 }
1021 j -= qswidth;
1022 goto loop;
1023 }
1024
1025 if (i == lp) {
1026 if (lp - a >= l - hp) {
1027 qsort_main(hp + qswidth, l);
1028 l = lp;
1029 } else {
1030 qsort_main(a, lp);
1031 a = hp + qswidth;
1032 }
1033 goto start;
1034 }
1035
1036 q3exchange(j, lp -= qswidth, i);
1037 j = hp -= qswidth;
1038 }
1039}
1040
1041void psxBios_qsort() { // 0x31
1042 qswidth = a2;
1043 qscmpfunc = a3;
1044 qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
1045
1046 pc0 = ra;
1047}
1048
1049void psxBios_malloc() { // 0x33
808a13bd 1050 unsigned int *chunk, *newchunk = NULL;
1051 unsigned int dsize = 0, csize, cstat;
ef79bbde
P		 1052 int colflag;
1053#ifdef PSXBIOS_LOG
1054 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
1055#endif
26b964b5 1056 if (!a0 || (!heap_size || !heap_addr)) {
1057 v0 = 0;
1058 pc0 = ra;
1059 return;
1060 }
ef79bbde
P		 1061
1062 // scan through heap and combine free chunks of space
1063 chunk = heap_addr;
1064 colflag = 0;
1065 while(chunk < heap_end) {
1066 // get size and status of actual chunk
1067 csize = ((u32)*chunk) & 0xfffffffc;
1068 cstat = ((u32)*chunk) & 1;
1069
26b964b5 1070 // most probably broken heap descriptor
1071 // this fixes Burning Road
1072 if (*chunk == 0) {
1073 newchunk = chunk;
1074 dsize = ((uptr)heap_end - (uptr)chunk) - 4;
1075 colflag = 1;
1076 break;
1077 }
1078
ef79bbde
P		 1079 // it's a free chunk
1080 if(cstat == 1) {
1081 if(colflag == 0) {
1082 newchunk = chunk;
1083 dsize = csize;
1084 colflag = 1; // let's begin a new collection of free memory
1085 }
1086 else dsize += (csize+4); // add the new size including header
1087 }
1088 // not a free chunk: did we start a collection ?
1089 else {
1090 if(colflag == 1) { // collection is over
1091 colflag = 0;
1092 *newchunk = SWAP32(dsize | 1);
1093 }
1094 }
1095
1096 // next chunk
1097 chunk = (u32*)((uptr)chunk + csize + 4);
1098 }
1099 // if neccessary free memory on end of heap
1100 if (colflag == 1)
1101 *newchunk = SWAP32(dsize | 1);
1102
1103 chunk = heap_addr;
1104 csize = ((u32)*chunk) & 0xfffffffc;
1105 cstat = ((u32)*chunk) & 1;
1106 dsize = (a0 + 3) & 0xfffffffc;
1107
1108 // exit on uninitialized heap
1109 if (chunk == NULL) {
26b964b5 1110 printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
ef79bbde
P		 1111 v0 = 0;
1112 pc0 = ra;
1113 return;
1114 }
1115
1116 // search an unused chunk that is big enough until the end of the heap
26b964b5 1117 while ((dsize > csize || cstat==0) && chunk < heap_end ) {
ef79bbde 1118 chunk = (u32*)((uptr)chunk + csize + 4);
26b964b5 1119
1120 // catch out of memory
1121 if(chunk >= heap_end) {
1122 printf("malloc %x,%x: Out of memory error!\n",
1123 v0, a0);
1124 v0 = 0; pc0 = ra;
1125 return;
1126 }
1127
ef79bbde
P		 1128 csize = ((u32)*chunk) & 0xfffffffc;
1129 cstat = ((u32)*chunk) & 1;
1130 }
1131
ef79bbde
P		 1132 // allocate memory
1133 if(dsize == csize) {
1134 // chunk has same size
1135 *chunk &= 0xfffffffc;
26b964b5 1136 } else if (dsize > csize) {
1137 v0 = 0; pc0 = ra;
1138 return;
1139 } else {
ef79bbde
P		 1140 // split free chunk
1141 *chunk = SWAP32(dsize);
1142 newchunk = (u32*)((uptr)chunk + dsize + 4);
808a13bd 1143 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
ef79bbde
P		 1144 }
1145
1146 // return pointer to allocated memory
26b964b5 1147 v0 = ((uptr)chunk - (uptr)psxM) + 4;
ef79bbde 1148 v0|= 0x80000000;
26b964b5 1149 //printf ("malloc %x,%x\n", v0, a0);
ef79bbde
P		 1150 pc0 = ra;
1151}
1152
1153void psxBios_free() { // 0x34
1154
1155#ifdef PSXBIOS_LOG
1156 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1157#endif
1158
1159 SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1160
ba4ecb8c 1161 if (a0)
1162 *(u32*)(Ra0-4) |= 1; // set chunk to free
ef79bbde
P		 1163 pc0 = ra;
1164}
1165
1166void psxBios_calloc() { // 0x37
02949f79 1167 void *pv0;
ef79bbde
P		 1168#ifdef PSXBIOS_LOG
1169 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1170#endif
1171
1172 a0 = a0 * a1;
1173 psxBios_malloc();
02949f79 1174 pv0 = Rv0;
1175 if (pv0)
1176 memset(pv0, 0, a0);
ef79bbde
P		 1177}
1178
1179void psxBios_realloc() { // 0x38
1180 u32 block = a0;
1181 u32 size = a1;
1182#ifdef PSXBIOS_LOG
1183 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1184#endif
1185
1186 a0 = block;
391b1d5b 1187 /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1188 if (block == 0)
1189 {
1190 psxBios_malloc();
1191 }
1192 /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1193 else if (size == 0)
1194 {
1195 psxBios_free();
1196 }
1197 /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1198 /* Note that it is not quite implemented this way here. */
1199 else
1200 {
1201 psxBios_free();
1202 a0 = size;
1203 psxBios_malloc();
1204 }
ef79bbde
P		 1205}
1206
1207
1208/* InitHeap(void *block , int n) */
1209void psxBios_InitHeap() { // 0x39
1210 unsigned int size;
1211
1212#ifdef PSXBIOS_LOG
1213 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1214#endif
1215
1216 if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1217 else size = a1;
1218
1219 size &= 0xfffffffc;
1220
1221 heap_addr = (u32 *)Ra0;
1222 heap_end = (u32 *)((u8 *)heap_addr + size);
1223 *heap_addr = SWAP32(size | 1);
1224
c979c3ee 1225 SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
ef79bbde
P		 1226
1227 pc0 = ra;
1228}
1229
1230void psxBios_getchar() { //0x3b
1231 v0 = getchar(); pc0 = ra;
1232}
1233
1234void psxBios_printf() { // 0x3f
1235 char tmp[1024];
1236 char tmp2[1024];
1237 u32 save[4];
1238 char *ptmp = tmp;
1239 int n=1, i=0, j;
02949f79 1240 void *psp;
1241
1242 psp = PSXM(sp);
1243 if (psp) {
1244 memcpy(save, psp, 4 * 4);
1245 psxMu32ref(sp) = SWAP32((u32)a0);
1246 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1247 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1248 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1249 }
ef79bbde
P		 1250
1251 while (Ra0[i]) {
1252 switch (Ra0[i]) {
1253 case '%':
1254 j = 0;
1255 tmp2[j++] = '%';
1256_start:
1257 switch (Ra0[++i]) {
1258 case '.':
1259 case 'l':
1260 tmp2[j++] = Ra0[i]; goto _start;
1261 default:
1262 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1263 tmp2[j++] = Ra0[i];
1264 goto _start;
1265 }
1266 break;
1267 }
1268 tmp2[j++] = Ra0[i];
1269 tmp2[j] = 0;
1270
1271 switch (Ra0[i]) {
1272 case 'f': case 'F':
1273 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1274 case 'a': case 'A':
1275 case 'e': case 'E':
1276 case 'g': case 'G':
1277 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1278 case 'p':
888468ff 1279 case 'i': case 'u':
ef79bbde
P		 1280 case 'd': case 'D':
1281 case 'o': case 'O':
1282 case 'x': case 'X':
1283 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1284 case 'c':
1285 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1286 case 's':
1287 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1288 case '%':
1289 *ptmp++ = Ra0[i]; break;
1290 }
1291 i++;
1292 break;
1293 default:
1294 *ptmp++ = Ra0[i++];
1295 }
1296 }
1297 *ptmp = 0;
1298
02949f79 1299 if (psp)
1300 memcpy(psp, save, 4 * 4);
ef79bbde 1301
808a13bd 1302 SysPrintf("%s", tmp);
ef79bbde
P		 1303
1304 pc0 = ra;
1305}
1306
e7e1f572 1307void psxBios_format() { // 0x41
1308 if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1309 {
1310 CreateMcd(Config.Mcd1);
1311 LoadMcd(1, Config.Mcd1);
1312 v0 = 1;
1313 }
1314 else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1315 {
1316 CreateMcd(Config.Mcd2);
1317 LoadMcd(2, Config.Mcd2);
1318 v0 = 1;
1319 }
1320 else
1321 {
1322 v0 = 0;
1323 }
1324 pc0 = ra;
1325}
1326
ef79bbde
P		 1327/*
1328 * long Load(char *name, struct EXEC *header);
1329 */
1330
1331void psxBios_Load() { // 0x42
1332 EXE_HEADER eheader;
02949f79 1333 void *pa1;
ef79bbde
P		 1334
1335#ifdef PSXBIOS_LOG
1336 PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1337#endif
1338
02949f79 1339 pa1 = Ra1;
1340 if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1341 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
ef79bbde
P		 1342 v0 = 1;
1343 } else v0 = 0;
1344
1345 pc0 = ra;
1346}
1347
1348/*
1349 * int Exec(struct EXEC *header , int argc , char **argv);
1350 */
1351
1352void psxBios_Exec() { // 43
1353 EXEC *header = (EXEC*)Ra0;
1354 u32 tmp;
1355
1356#ifdef PSXBIOS_LOG
1357 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1358#endif
1359
1360 header->_sp = sp;
1361 header->_fp = fp;
1362 header->_sp = sp;
1363 header->_gp = gp;
1364 header->ret = ra;
1365 header->base = s0;
1366
1367 if (header->S_addr != 0) {
1368 tmp = header->S_addr + header->s_size;
1369 sp = tmp;
1370 fp = sp;
1371 }
1372
1373 gp = header->gp0;
1374
1375 s0 = a0;
1376
1377 a0 = a1;
1378 a1 = a2;
1379
1380 ra = 0x8000;
1381 pc0 = header->_pc0;
1382}
1383
1384void psxBios_FlushCache() { // 44
1385#ifdef PSXBIOS_LOG
1386 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1387#endif
1388
1389 pc0 = ra;
1390}
1391
1392void psxBios_GPU_dw() { // 0x46
1393 int size;
1394 s32 *ptr;
1395
1396#ifdef PSXBIOS_LOG
1397 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1398#endif
1399
1400 GPU_writeData(0xa0000000);
1401 GPU_writeData((a1<<16)|(a0&0xffff));
1402 GPU_writeData((a3<<16)|(a2&0xffff));
1403 size = (a2*a3+1)/2;
1404 ptr = (s32*)PSXM(Rsp[4]); //that is correct?
1405 do {
1406 GPU_writeData(SWAP32(*ptr));
1407 ptr++;
1408 } while(--size);
1409
1410 pc0 = ra;
1411}
1412
1413void psxBios_mem2vram() { // 0x47
1414 int size;
1415
1416 GPU_writeData(0xa0000000);
1417 GPU_writeData((a1<<16)|(a0&0xffff));
1418 GPU_writeData((a3<<16)|(a2&0xffff));
1419 size = (a2*a3+1)/2;
1420 GPU_writeStatus(0x04000002);
1421 psxHwWrite32(0x1f8010f4,0);
1422 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1423 psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1424 psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1425 psxHwWrite32(0x1f8010a8,0x01000201);
1426
1427 pc0 = ra;
1428}
1429
1430void psxBios_SendGPU() { // 0x48
1431 GPU_writeStatus(a0);
ddbaf678 1432 gpuSyncPluginSR();
ef79bbde
P		 1433 pc0 = ra;
1434}
1435
1436void psxBios_GPU_cw() { // 0x49
1437 GPU_writeData(a0);
1438 pc0 = ra;
1439}
1440
1441void psxBios_GPU_cwb() { // 0x4a
1442 s32 *ptr = (s32*)Ra0;
1443 int size = a1;
1444 while(size--) {
1445 GPU_writeData(SWAP32(*ptr));
1446 ptr++;
1447 }
1448
1449 pc0 = ra;
1450}
1451
1452void psxBios_GPU_SendPackets() { //4b:
1453 GPU_writeStatus(0x04000002);
1454 psxHwWrite32(0x1f8010f4,0);
1455 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1456 psxHwWrite32(0x1f8010a0,a0);
1457 psxHwWrite32(0x1f8010a4,0);
1458 psxHwWrite32(0x1f8010a8,0x010000401);
1459 pc0 = ra;
1460}
1461
1462void psxBios_sys_a0_4c() { // 0x4c GPU relate
1463 psxHwWrite32(0x1f8010a8,0x00000401);
1464 GPU_writeData(0x0400000);
1465 GPU_writeData(0x0200000);
1466 GPU_writeData(0x0100000);
cd1ea245 1467 v0 = 0x1f801814;
ef79bbde
P		 1468 pc0 = ra;
1469}
1470
1471void psxBios_GPU_GetGPUStatus() { // 0x4d
1472 v0 = GPU_readStatus();
1473 pc0 = ra;
1474}
1475
1476#undef s_addr
1477
1478void psxBios_LoadExec() { // 51
1479 EXEC *header = (EXEC*)PSXM(0xf000);
1480 u32 s_addr, s_size;
1481
1482#ifdef PSXBIOS_LOG
1483 PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1484#endif
1485 s_addr = a1; s_size = a2;
1486
1487 a1 = 0xf000;
1488 psxBios_Load();
1489
1490 header->S_addr = s_addr;
1491 header->s_size = s_size;
1492
1493 a0 = 0xf000; a1 = 0; a2 = 0;
1494 psxBios_Exec();
1495}
1496
1497void psxBios__bu_init() { // 70
1498#ifdef PSXBIOS_LOG
1499 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1500#endif
1501
1502 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1503 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1504
1505 pc0 = ra;
1506}
1507
1508void psxBios__96_init() { // 71
1509#ifdef PSXBIOS_LOG
1510 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1511#endif
1512
1513 pc0 = ra;
1514}
1515
1516void psxBios__96_remove() { // 72
1517#ifdef PSXBIOS_LOG
1518 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1519#endif
1520
1521 pc0 = ra;
1522}
1523
1524void psxBios_SetMem() { // 9f
1525 u32 new = psxHu32(0x1060);
1526
1527#ifdef PSXBIOS_LOG
1528 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1529#endif
1530
1531 switch(a0) {
1532 case 2:
1533 psxHu32ref(0x1060) = SWAP32(new);
1534 psxMu32ref(0x060) = a0;
1535 SysPrintf("Change effective memory : %d MBytes\n",a0);
1536 break;
1537
1538 case 8:
1539 psxHu32ref(0x1060) = SWAP32(new | 0x300);
1540 psxMu32ref(0x060) = a0;
1541 SysPrintf("Change effective memory : %d MBytes\n",a0);
1542
1543 default:
1544 SysPrintf("Effective memory must be 2/8 MBytes\n");
1545 break;
1546 }
1547
1548 pc0 = ra;
1549}
1550
1551void psxBios__card_info() { // ab
1552#ifdef PSXBIOS_LOG
1553 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1554#endif
76b81516 1555 u32 ret;
e9fda093 1556 card_active_chan = a0;
1557
76b81516 1558 switch (card_active_chan)
1559 {
1560 case 0x00: case 0x01: case 0x02: case 0x03:
1561 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1562 break;
1563 case 0x10: case 0x11: case 0x12: case 0x13:
1564 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1565 break;
1566 default:
1567#ifdef PSXBIOS_LOG
1568 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1569#endif
1570 ret = 0x11;
1571 break;
1572 }
1573
1574// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
ef79bbde
P		 1575// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1576 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
76b81516 1577 DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
ef79bbde
P		 1578
1579 v0 = 1; pc0 = ra;
1580}
1581
1582void psxBios__card_load() { // ac
1583#ifdef PSXBIOS_LOG
1584 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1585#endif
1586
e9fda093 1587 card_active_chan = a0;
1588
ef79bbde
P		 1589// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1590 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1591
1592 v0 = 1; pc0 = ra;
1593}
1594
1595/* System calls B0 */
1596
1597void psxBios_SetRCnt() { // 02
1598#ifdef PSXBIOS_LOG
1599 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1600#endif
1601
1602 a0&= 0x3;
1603 if (a0 != 3) {
1604 u32 mode=0;
1605
1606 psxRcntWtarget(a0, a1);
1607 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1608 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1609 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1610 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1611 else { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1612
1613 psxRcntWmode(a0, mode);
1614 }
1615 pc0 = ra;
1616}
1617
1618void psxBios_GetRCnt() { // 03
1619#ifdef PSXBIOS_LOG
1620 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1621#endif
1622
1623 a0&= 0x3;
1624 if (a0 != 3) v0 = psxRcntRcount(a0);
1625 else v0 = 0;
1626 pc0 = ra;
1627}
1628
1629void psxBios_StartRCnt() { // 04
1630#ifdef PSXBIOS_LOG
1631 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1632#endif
1633
1634 a0&= 0x3;
1635 if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1636 else psxHu32ref(0x1074)|= SWAPu32(0x1);
1637 v0 = 1; pc0 = ra;
1638}
1639
1640void psxBios_StopRCnt() { // 05
1641#ifdef PSXBIOS_LOG
1642 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1643#endif
1644
1645 a0&= 0x3;
1646 if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1647 else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1648 pc0 = ra;
1649}
1650
1651void psxBios_ResetRCnt() { // 06
1652#ifdef PSXBIOS_LOG
1653 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1654#endif
1655
1656 a0&= 0x3;
1657 if (a0 != 3) {
1658 psxRcntWmode(a0, 0);
1659 psxRcntWtarget(a0, 0);
1660 psxRcntWcount(a0, 0);
1661 }
1662 pc0 = ra;
1663}
1664
1665
1666/* gets ev for use with Event */
1667#define GetEv() \
1668 ev = (a0 >> 24) & 0xf; \
1669 if (ev == 0xf) ev = 0x5; \
1670 ev*= 32; \
1671 ev+= a0&0x1f;
1672
1673/* gets spec for use with Event */
1674#define GetSpec() \
1675 spec = 0; \
1676 switch (a1) { \
1677 case 0x0301: spec = 16; break; \
1678 case 0x0302: spec = 17; break; \
1679 default: \
1680 for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1681 break; \
1682 }
1683
1684void psxBios_DeliverEvent() { // 07
1685 int ev, spec;
1686 int i;
1687
1688 GetEv();
1689 GetSpec();
1690
1691#ifdef PSXBIOS_LOG
1692 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1693#endif
1694
1695 DeliverEvent(ev, spec);
1696
1697 pc0 = ra;
1698}
1699
1700void psxBios_OpenEvent() { // 08
1701 int ev, spec;
1702 int i;
1703
1704 GetEv();
1705 GetSpec();
1706
1707#ifdef PSXBIOS_LOG
1708 PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1709#endif
1710
1711 Event[ev][spec].status = EvStWAIT;
1712 Event[ev][spec].mode = a2;
1713 Event[ev][spec].fhandler = a3;
1714
1715 v0 = ev | (spec << 8);
1716 pc0 = ra;
1717}
1718
1719void psxBios_CloseEvent() { // 09
1720 int ev, spec;
1721
1722 ev = a0 & 0xff;
1723 spec = (a0 >> 8) & 0xff;
1724
1725#ifdef PSXBIOS_LOG
1726 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1727#endif
1728
1729 Event[ev][spec].status = EvStUNUSED;
1730
1731 v0 = 1; pc0 = ra;
1732}
1733
1734void psxBios_WaitEvent() { // 0a
1735 int ev, spec;
1736
1737 ev = a0 & 0xff;
1738 spec = (a0 >> 8) & 0xff;
ef79bbde
P		 1739#ifdef PSXBIOS_LOG
1740 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1741#endif
d95c9dcb 1742 if (Event[ev][spec].status == EvStUNUSED)
1743 {
1744 v0 = 0;
1745 pc0 = ra;
1746 return;
1747 }
ef79bbde 1748
d95c9dcb 1749 if (Event[ev][spec].status == EvStALREADY)
1750 {
1751 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1752 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1753 v0 = 1;
1754 pc0 = ra;
1755 return;
1756 }
ef79bbde 1757
d95c9dcb 1758 v0 = 0;
1759 pc0 = ra;
ef79bbde
P		 1760}
1761
1762void psxBios_TestEvent() { // 0b
1763 int ev, spec;
1764
1765 ev = a0 & 0xff;
1766 spec = (a0 >> 8) & 0xff;
1767
b4ae2532 1768 if (Event[ev][spec].status == EvStALREADY)
1769 {
1770 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1771 v0 = 1;
1772 }
1773 else
1774 {
1775 v0 = 0;
1776 }
ef79bbde
P		 1777
1778#ifdef PSXBIOS_LOG
1779 PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1780#endif
1781
1782 pc0 = ra;
1783}
1784
1785void psxBios_EnableEvent() { // 0c
1786 int ev, spec;
1787
1788 ev = a0 & 0xff;
1789 spec = (a0 >> 8) & 0xff;
1790
1791#ifdef PSXBIOS_LOG
1792 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1793#endif
1794
1795 Event[ev][spec].status = EvStACTIVE;
1796
1797 v0 = 1; pc0 = ra;
1798}
1799
1800void psxBios_DisableEvent() { // 0d
1801 int ev, spec;
1802
1803 ev = a0 & 0xff;
1804 spec = (a0 >> 8) & 0xff;
1805
1806#ifdef PSXBIOS_LOG
1807 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1808#endif
1809
1810 Event[ev][spec].status = EvStWAIT;
1811
1812 v0 = 1; pc0 = ra;
1813}
1814
1815/*
1816 * long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1817 */
1818
1819void psxBios_OpenTh() { // 0e
1820 int th;
1821
1822 for (th=1; th<8; th++)
a66d3058 1823 {
ef79bbde
P		 1824 if (Thread[th].status == 0) break;
1825
a66d3058 1826 }
1827 if (th == 8) {
1828 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1829 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1830#ifdef PSXBIOS_LOG
1831 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1832#endif
1833 v0 = 0xffffffff;
1834 pc0 = ra;
1835 return;
1836 }
ef79bbde
P		 1837#ifdef PSXBIOS_LOG
1838 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1839#endif
1840
1841 Thread[th].status = 1;
1842 Thread[th].func = a0;
1843 Thread[th].reg[29] = a1;
1844 Thread[th].reg[28] = a2;
1845
1846 v0 = th; pc0 = ra;
1847}
1848
1849/*
1850 * int CloseTh(long thread);
1851 */
1852
1853void psxBios_CloseTh() { // 0f
1854 int th = a0 & 0xff;
1855
1856#ifdef PSXBIOS_LOG
1857 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1858#endif
1859
1860 if (Thread[th].status == 0) {
1861 v0 = 0;
1862 } else {
1863 Thread[th].status = 0;
1864 v0 = 1;
1865 }
1866
1867 pc0 = ra;
1868}
1869
1870/*
1871 * int ChangeTh(long thread);
1872 */
1873
1874void psxBios_ChangeTh() { // 10
1875 int th = a0 & 0xff;
1876
1877#ifdef PSXBIOS_LOG
1878// PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1879#endif
1880
1881 if (Thread[th].status == 0 || CurThread == th) {
1882 v0 = 0;
1883
1884 pc0 = ra;
1885 } else {
1886 v0 = 1;
1887
1888 if (Thread[CurThread].status == 2) {
1889 Thread[CurThread].status = 1;
1890 Thread[CurThread].func = ra;
1891 memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1892 }
1893
1894 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1895 pc0 = Thread[th].func;
1896 Thread[th].status = 2;
1897 CurThread = th;
1898 }
1899}
1900
1901void psxBios_InitPAD() { // 0x12
1902#ifdef PSXBIOS_LOG
1903 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1904#endif
1905
1906 pad_buf1 = (char*)Ra0;
1907 pad_buf1len = a1;
1908 pad_buf2 = (char*)Ra2;
1909 pad_buf2len = a3;
1910
1911 v0 = 1; pc0 = ra;
1912}
1913
1914void psxBios_StartPAD() { // 13
1915#ifdef PSXBIOS_LOG
1916 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1917#endif
f25c285b 1918 pad_stopped = 0;
ef79bbde
P		 1919 psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1920 psxRegs.CP0.n.Status |= 0x401;
1921 pc0 = ra;
1922}
1923
1924void psxBios_StopPAD() { // 14
1925#ifdef PSXBIOS_LOG
1926 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1927#endif
f25c285b 1928 pad_stopped = 1;
8a0245bb 1929 if (pad_buf == 0){
ef79bbde
P		 1930 pad_buf1 = NULL;
1931 pad_buf2 = NULL;
8a0245bb 1932 }
ef79bbde
P		 1933 pc0 = ra;
1934}
1935
1936void psxBios_PAD_init() { // 15
1937#ifdef PSXBIOS_LOG
1938 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1939#endif
a824e83d 1940 if (!(a0 == 0x20000000 || a0 == 0x20000001))
1941 {
1942 v0 = 0;
1943 pc0 = ra;
1944 return;
1945 }
ef79bbde
P		 1946 psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1947 pad_buf = (int *)Ra1;
1948 *pad_buf = -1;
1949 psxRegs.CP0.n.Status |= 0x401;
a824e83d 1950 v0 = 2;
ef79bbde
P		 1951 pc0 = ra;
1952}
1953
1954void psxBios_PAD_dr() { // 16
1955#ifdef PSXBIOS_LOG
1956 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1957#endif
1958
1959 v0 = -1; pc0 = ra;
1960}
1961
1962void psxBios_ReturnFromException() { // 17
1963 LoadRegs();
1964
1965 pc0 = psxRegs.CP0.n.EPC;
1966 if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1967
1968 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1969 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1970}
1971
1972void psxBios_ResetEntryInt() { // 18
1973#ifdef PSXBIOS_LOG
1974 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1975#endif
1976
1977 jmp_int = NULL;
1978 pc0 = ra;
1979}
1980
1981void psxBios_HookEntryInt() { // 19
1982#ifdef PSXBIOS_LOG
1983 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1984#endif
1985
1986 jmp_int = (u32*)Ra0;
1987 pc0 = ra;
1988}
1989
1990void psxBios_UnDeliverEvent() { // 0x20
1991 int ev, spec;
1992 int i;
1993
1994 GetEv();
1995 GetSpec();
1996
1997#ifdef PSXBIOS_LOG
1998 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1999#endif
2000
2001 if (Event[ev][spec].status == EvStALREADY &&
2002 Event[ev][spec].mode == EvMdNOINTR)
2003 Event[ev][spec].status = EvStACTIVE;
2004
2005 pc0 = ra;
2006}
2007
595a136b 2008char ffile[64], *pfile;
2009int nfile;
2010static void buopen(int mcd, u8 *ptr, u8 *cfg)
2011{
2012 int i;
2013 u8 *fptr = ptr;
2014
2015 strcpy(FDesc[1 + mcd].name, Ra0+5);
2016 FDesc[1 + mcd].offset = 0;
2017 FDesc[1 + mcd].mode = a1;
2018
2019 for (i=1; i<16; i++) {
2020 fptr += 128;
2021 if ((*fptr & 0xF0) != 0x50) continue;
2022 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
2023 FDesc[1 + mcd].mcfile = i;
2024 SysPrintf("open %s\n", fptr+0xa);
2025 v0 = 1 + mcd;
2026 break;
2027 }
2028 if (a1 & 0x200 && v0 == -1) { /* FCREAT */
2029 fptr = ptr;
2030 for (i=1; i<16; i++) {
2031 int j, xor, nblk = a1 >> 16;
2032 u8 *pptr, *fptr2;
2033
2034 fptr += 128;
2035 if ((*fptr & 0xF0) != 0xa0) continue;
2036
2037 FDesc[1 + mcd].mcfile = i;
2038 fptr[0] = 0x51;
2039 fptr[4] = 0x00;
2040 fptr[5] = 0x20 * nblk;
2041 fptr[6] = 0x00;
2042 fptr[7] = 0x00;
2043 strcpy(fptr+0xa, FDesc[1 + mcd].name);
2044 pptr = fptr2 = fptr;
2045 for(j=2; j<=nblk; j++) {
2046 int k;
2047 for(i++; i<16; i++) {
2048 fptr2 += 128;
2049
2050 memset(fptr2, 0, 128);
2051 fptr2[0] = j < nblk ? 0x52 : 0x53;
2052 pptr[8] = i - 1;
2053 pptr[9] = 0;
2054 for (k=0, xor=0; k<127; k++) xor^= pptr[k];
2055 pptr[127] = xor;
2056 pptr = fptr2;
2057 break;
2058 }
2059 /* shouldn't this return ENOSPC if i == 16? */
2060 }
2061 pptr[8] = pptr[9] = 0xff;
2062 for (j=0, xor=0; j<127; j++) xor^= pptr[j];
2063 pptr[127] = xor;
2064 SysPrintf("openC %s %d\n", ptr, nblk);
2065 v0 = 1 + mcd;
2066 /* just go ahead and resave them all */
2067 SaveMcd(cfg, ptr, 128, 128 * 15);
2068 break;
2069 }
2070 /* shouldn't this return ENOSPC if i == 16? */
2071 }
ef79bbde
P		 2072}
2073
2074/*
2075 * int open(char *name , int mode);
2076 */
2077
2078void psxBios_open() { // 0x32
2079 int i;
2080 char *ptr;
02949f79 2081 void *pa0 = Ra0;
ef79bbde
P		 2082
2083#ifdef PSXBIOS_LOG
2084 PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
2085#endif
2086
2087 v0 = -1;
2088
02949f79 2089 if (pa0) {
2090 if (!strncmp(pa0, "bu00", 4)) {
595a136b 2091 buopen(1, Mcd1Data, Config.Mcd1);
02949f79 2092 }
ef79bbde 2093
02949f79 2094 if (!strncmp(pa0, "bu10", 4)) {
595a136b 2095 buopen(2, Mcd2Data, Config.Mcd2);
02949f79 2096 }
ef79bbde
P		 2097 }
2098
2099 pc0 = ra;
2100}
2101
2102/*
2103 * int lseek(int fd , int offset , int whence);
2104 */
2105
2106void psxBios_lseek() { // 0x33
2107#ifdef PSXBIOS_LOG
2108 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2109#endif
2110
2111 switch (a2) {
2112 case 0: // SEEK_SET
2113 FDesc[a0].offset = a1;
2114 v0 = a1;
2115// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2116// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2117 break;
2118
2119 case 1: // SEEK_CUR
2120 FDesc[a0].offset+= a1;
2121 v0 = FDesc[a0].offset;
2122 break;
2123 }
2124
2125 pc0 = ra;
2126}
2127
595a136b 2128
ef79bbde
P		 2129/*
2130 * int read(int fd , void *buf , int nbytes);
2131 */
2132
2133void psxBios_read() { // 0x34
2134 char *ptr;
02949f79 2135 void *pa1 = Ra1;
ef79bbde
P		 2136
2137#ifdef PSXBIOS_LOG
2138 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2139#endif
2140
2141 v0 = -1;
2142
02949f79 2143 if (pa1) {
2144 switch (a0) {
595a136b 2145 case 2: buread(pa1, 1, a2); break;
2146 case 3: buread(pa1, 2, a2); break;
02949f79 2147 }
ef79bbde
P		 2148 }
2149
2150 pc0 = ra;
2151}
2152
ef79bbde
P		 2153/*
2154 * int write(int fd , void *buf , int nbytes);
2155 */
2156
2157void psxBios_write() { // 0x35/0x03
2158 char *ptr;
02949f79 2159 void *pa1 = Ra1;
2160
2161#ifdef PSXBIOS_LOG
2162 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2163#endif
2164
2165 v0 = -1;
2166 if (!pa1) {
2167 pc0 = ra;
2168 return;
2169 }
ef79bbde
P		 2170
2171 if (a0 == 1) { // stdout
02949f79 2172 char *ptr = pa1;
ef79bbde 2173
02949f79 2174 v0 = a2;
ef79bbde
P		 2175 while (a2 > 0) {
2176 SysPrintf("%c", *ptr++); a2--;
2177 }
2178 pc0 = ra; return;
2179 }
ef79bbde
P		 2180
2181 switch (a0) {
595a136b 2182 case 2: buwrite(pa1, 1, a2); break;
2183 case 3: buwrite(pa1, 2, a2); break;
ef79bbde
P		 2184 }
2185
2186 pc0 = ra;
2187}
2188
2189/*
2190 * int close(int fd);
2191 */
2192
2193void psxBios_close() { // 0x36
2194#ifdef PSXBIOS_LOG
2195 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2196#endif
2197
2198 v0 = a0;
2199 pc0 = ra;
2200}
2201
2202void psxBios_putchar() { // 3d
2203 SysPrintf("%c", (char)a0);
2204 pc0 = ra;
2205}
2206
2207void psxBios_puts() { // 3e/3f
808a13bd 2208 SysPrintf("%s", Ra0);
ef79bbde
P		 2209 pc0 = ra;
2210}
2211
2212char ffile[64], *pfile;
2213int nfile;
2214
f1514614 2215
2216/* To avoid any issues with different behaviour when using the libc's own strlen instead.
2217 * We want to mimic the PSX's behaviour in this case for bufile. */
2218static size_t strlen_internal(char* p)
2219{
2220 size_t size_of_array = 0;
2221 while (*p++) size_of_array++;
2222 return size_of_array;
2223}
2224
ef79bbde 2225#define bufile(mcd) { \
f1514614 2226 size_t size_of_name = strlen_internal(dir->name); \
ef79bbde
P		 2227 while (nfile < 16) { \
2228 int match=1; \
2229 \
595a136b 2230 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
ef79bbde
P		 2231 nfile++; \
2232 if ((*ptr & 0xF0) != 0x50) continue; \
595a136b 2233 /* Bug link files show up as free block. */ \
2234 if (!ptr[0xa]) continue; \
ef79bbde
P		 2235 ptr+= 0xa; \
2236 if (pfile[0] == 0) { \
f1514614 2237 strncpy(dir->name, ptr, sizeof(dir->name) - 1); \
2238 if (size_of_name < sizeof(dir->name)) dir->name[size_of_name] = '\0'; \
ef79bbde
P		 2239 } else for (i=0; i<20; i++) { \
2240 if (pfile[i] == ptr[i]) { \
595a136b 2241 dir->name[i] = ptr[i]; continue; } \
ef79bbde
P		 2242 if (pfile[i] == '?') { \
2243 dir->name[i] = ptr[i]; continue; } \
2244 if (pfile[i] == '*') { \
2245 strcpy(dir->name+i, ptr+i); break; } \
2246 match = 0; break; \
2247 } \
2248 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
595a136b 2249 if (match == 0) { continue; } \
ef79bbde
P		 2250 dir->size = 8192; \
2251 v0 = _dir; \
2252 break; \
2253 } \
2254}
2255
2256/*
2257 * struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2258 */
2259
2260void psxBios_firstfile() { // 42
2261 struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
02949f79 2262 void *pa0 = Ra0;
ef79bbde
P		 2263 u32 _dir = a1;
2264 char *ptr;
2265 int i;
2266
2267#ifdef PSXBIOS_LOG
2268 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2269#endif
2270
2271 v0 = 0;
2272
02949f79 2273 if (pa0) {
2274 strcpy(ffile, pa0);
2275 pfile = ffile+5;
2276 nfile = 1;
2277 if (!strncmp(pa0, "bu00", 4)) {
857fabea 2278 // firstfile() calls _card_read() internally, so deliver it's event
2279 DeliverEvent(0x11, 0x2);
02949f79 2280 bufile(1);
2281 } else if (!strncmp(pa0, "bu10", 4)) {
857fabea 2282 // firstfile() calls _card_read() internally, so deliver it's event
2283 DeliverEvent(0x11, 0x2);
02949f79 2284 bufile(2);
2285 }
ef79bbde
P		 2286 }
2287
2288 pc0 = ra;
2289}
2290
2291/*
2292 * struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2293 */
2294
2295void psxBios_nextfile() { // 43
2296 struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2297 u32 _dir = a0;
2298 char *ptr;
2299 int i;
2300
2301#ifdef PSXBIOS_LOG
2302 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2303#endif
2304
2305 v0 = 0;
2306
2307 if (!strncmp(ffile, "bu00", 4)) {
2308 bufile(1);
2309 }
2310
2311 if (!strncmp(ffile, "bu10", 4)) {
2312 bufile(2);
2313 }
2314
2315 pc0 = ra;
2316}
2317
2318#define burename(mcd) { \
2319 for (i=1; i<16; i++) { \
2320 int namelen, j, xor = 0; \
2321 ptr = Mcd##mcd##Data + 128 * i; \
2322 if ((*ptr & 0xF0) != 0x50) continue; \
2323 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2324 namelen = strlen(Ra1+5); \
2325 memcpy(ptr+0xa, Ra1+5, namelen); \
2326 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2327 for (j=0; j<127; j++) xor^= ptr[j]; \
2328 ptr[127] = xor; \
2329 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2330 v0 = 1; \
2331 break; \
2332 } \
2333}
2334
2335/*
2336 * int rename(char *old, char *new);
2337 */
2338
2339void psxBios_rename() { // 44
02949f79 2340 void *pa0 = Ra0;
2341 void *pa1 = Ra1;
ef79bbde
P		 2342 char *ptr;
2343 int i;
2344
2345#ifdef PSXBIOS_LOG
2346 PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2347#endif
2348
2349 v0 = 0;
2350
02949f79 2351 if (pa0 && pa1) {
2352 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2353 burename(1);
2354 }
ef79bbde 2355
02949f79 2356 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2357 burename(2);
2358 }
ef79bbde
P		 2359 }
2360
2361 pc0 = ra;
2362}
2363
2364
2365#define budelete(mcd) { \
2366 for (i=1; i<16; i++) { \
2367 ptr = Mcd##mcd##Data + 128 * i; \
2368 if ((*ptr & 0xF0) != 0x50) continue; \
2369 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2370 *ptr = (*ptr & 0xf) | 0xA0; \
2371 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2372 SysPrintf("delete %s\n", ptr+0xa); \
2373 v0 = 1; \
2374 break; \
2375 } \
2376}
2377
2378/*
2379 * int delete(char *name);
2380 */
2381
2382void psxBios_delete() { // 45
02949f79 2383 void *pa0 = Ra0;
ef79bbde
P		 2384 char *ptr;
2385 int i;
2386
2387#ifdef PSXBIOS_LOG
2388 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2389#endif
2390
2391 v0 = 0;
2392
02949f79 2393 if (pa0) {
2394 if (!strncmp(pa0, "bu00", 4)) {
2395 budelete(1);
2396 }
ef79bbde 2397
02949f79 2398 if (!strncmp(pa0, "bu10", 4)) {
2399 budelete(2);
2400 }
ef79bbde
P		 2401 }
2402
2403 pc0 = ra;
2404}
2405
2406void psxBios_InitCARD() { // 4a
2407#ifdef PSXBIOS_LOG
2408 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2409#endif
2410
2411 CardState = 0;
2412
2413 pc0 = ra;
2414}
2415
2416void psxBios_StartCARD() { // 4b
2417#ifdef PSXBIOS_LOG
2418 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2419#endif
2420
2421 if (CardState == 0) CardState = 1;
2422
2423 pc0 = ra;
2424}
2425
2426void psxBios_StopCARD() { // 4c
2427#ifdef PSXBIOS_LOG
2428 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2429#endif
2430
2431 if (CardState == 1) CardState = 0;
2432
2433 pc0 = ra;
2434}
2435
2436void psxBios__card_write() { // 0x4e
02949f79 2437 void *pa2 = Ra2;
ef79bbde
P		 2438 int port;
2439
2440#ifdef PSXBIOS_LOG
2441 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2442#endif
bd48ba5e 2443 /* Function also accepts sector 400h (a bug) */
2444 if (!(a1 <= 0x400))
2445 {
2446 /* Invalid sectors */
2447 v0 = 0; pc0 = ra;
2448 return;
2449 }
e9fda093 2450 card_active_chan = a0;
ef79bbde
P		 2451 port = a0 >> 4;
2452
02949f79 2453 if (pa2) {
2454 if (port == 0) {
2455 memcpy(Mcd1Data + a1 * 128, pa2, 128);
2456 SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2457 } else {
2458 memcpy(Mcd2Data + a1 * 128, pa2, 128);
2459 SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2460 }
ef79bbde
P		 2461 }
2462
2463 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2464// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2465
2466 v0 = 1; pc0 = ra;
2467}
2468
2469void psxBios__card_read() { // 0x4f
02949f79 2470 void *pa2 = Ra2;
ef79bbde
P		 2471 int port;
2472
2473#ifdef PSXBIOS_LOG
2474 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2475#endif
bd48ba5e 2476 /* Function also accepts sector 400h (a bug) */
2477 if (!(a1 <= 0x400))
2478 {
2479 /* Invalid sectors */
2480 v0 = 0; pc0 = ra;
2481 return;
2482 }
e9fda093 2483 card_active_chan = a0;
ef79bbde
P		 2484 port = a0 >> 4;
2485
02949f79 2486 if (pa2) {
2487 if (port == 0) {
2488 memcpy(pa2, Mcd1Data + a1 * 128, 128);
2489 } else {
2490 memcpy(pa2, Mcd2Data + a1 * 128, 128);
2491 }
ef79bbde
P		 2492 }
2493
2494 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2495// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2496
2497 v0 = 1; pc0 = ra;
2498}
2499
2500void psxBios__new_card() { // 0x50
2501#ifdef PSXBIOS_LOG
2502 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2503#endif
2504
2505 pc0 = ra;
2506}
2507
002b2f7d 2508/* According to a user, this allows Final Fantasy Tactics to save/load properly */
2509void psxBios__get_error(void) // 55
2510{
2511 v0 = 0;
2512 pc0 = ra;
2513}
2514
ef79bbde
P		 2515void psxBios_Krom2RawAdd() { // 0x51
2516 int i = 0;
2517
2518 const u32 table_8140[][2] = {
2519 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2520 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2521 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2522 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2523 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2524 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2525 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2526 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2527 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2528 {0xffff, 0}
2529 };
2530
2531 const u32 table_889f[][2] = {
2532 {0x889f, 0x3d68}, {0x8900, 0x40ec}, {0x897f, 0x4fb0}, {0x8a00, 0x56f4},
2533 {0x8a7f, 0x65b8}, {0x8b00, 0x6cfc}, {0x8b7f, 0x7bc0}, {0x8c00, 0x8304},
2534 {0x8c7f, 0x91c8}, {0x8d00, 0x990c}, {0x8d7f, 0xa7d0}, {0x8e00, 0xaf14},
2535 {0x8e7f, 0xbdd8}, {0x8f00, 0xc51c}, {0x8f7f, 0xd3e0}, {0x9000, 0xdb24},
2536 {0x907f, 0xe9e8}, {0x9100, 0xf12c}, {0x917f, 0xfff0}, {0x9200, 0x10734},
2537 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2538 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2539 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2540 {0xffff, 0}
2541 };
2542
2543 if (a0 >= 0x8140 && a0 <= 0x84be) {
2544 while (table_8140[i][0] <= a0) i++;
2545 a0 -= table_8140[i - 1][0];
2546 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2547 } else if (a0 >= 0x889f && a0 <= 0x9872) {
2548 while (table_889f[i][0] <= a0) i++;
2549 a0 -= table_889f[i - 1][0];
2550 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2551 } else {
2552 v0 = 0xffffffff;
2553 }
2554
2555 pc0 = ra;
2556}
2557
2558void psxBios_GetC0Table() { // 56
2559#ifdef PSXBIOS_LOG
2560 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2561#endif
2562
2563 v0 = 0x674; pc0 = ra;
2564}
2565
2566void psxBios_GetB0Table() { // 57
2567#ifdef PSXBIOS_LOG
2568 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2569#endif
2570
2571 v0 = 0x874; pc0 = ra;
2572}
2573
e9fda093 2574void psxBios__card_chan() { // 0x58
2575#ifdef PSXBIOS_LOG
2576 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2577#endif
2578
2579 v0 = card_active_chan;
2580 pc0 = ra;
2581}
2582
ef79bbde
P		 2583void psxBios_ChangeClearPad() { // 5b
2584#ifdef PSXBIOS_LOG
2585 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2586#endif
2587
2588 pc0 = ra;
2589}
2590
21af3ff6 2591void psxBios__card_status() { // 5c
2592#ifdef PSXBIOS_LOG
2593 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5c], a0);
2594#endif
2595
2596 v0 = 1;
2597 pc0 = ra;
2598}
2599
ef79bbde
P		 2600/* System calls C0 */
2601
2602/*
2603 * int SysEnqIntRP(int index , long *queue);
2604 */
2605
2606void psxBios_SysEnqIntRP() { // 02
2607#ifdef PSXBIOS_LOG
2608 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2609#endif
2610
2611 SysIntRP[a0] = a1;
2612
2613 v0 = 0; pc0 = ra;
2614}
2615
2616/*
2617 * int SysDeqIntRP(int index , long *queue);
2618 */
2619
2620void psxBios_SysDeqIntRP() { // 03
2621#ifdef PSXBIOS_LOG
2622 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2623#endif
2624
2625 SysIntRP[a0] = 0;
2626
2627 v0 = 0; pc0 = ra;
2628}
2629
2630void psxBios_ChangeClearRCnt() { // 0a
2631 u32 *ptr;
2632
2633#ifdef PSXBIOS_LOG
2634 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2635#endif
2636
2637 ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2638 v0 = *ptr;
2639 *ptr = a1;
2640
2641// psxRegs.CP0.n.Status|= 0x404;
2642 pc0 = ra;
2643}
2644
2645void psxBios_dummy() {
2646#ifdef PSXBIOS_LOG
2647 PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2648#endif
2649 pc0 = ra;
2650}
2651
2652void (*biosA0[256])();
2653void (*biosB0[256])();
2654void (*biosC0[256])();
2655
2656#include "sjisfont.h"
2657
2658void psxBiosInit() {
2659 u32 base, size;
2660 u32 *ptr;
2661 int i;
2662 uLongf len;
2663
2664 for(i = 0; i < 256; i++) {
2665 biosA0[i] = NULL;
2666 biosB0[i] = NULL;
2667 biosC0[i] = NULL;
2668 }
2669 biosA0[0x3e] = psxBios_puts;
2670 biosA0[0x3f] = psxBios_printf;
2671
2672 biosB0[0x3d] = psxBios_putchar;
2673 biosB0[0x3f] = psxBios_puts;
2674
2675 if (!Config.HLE) return;
2676
2677 for(i = 0; i < 256; i++) {
2678 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2679 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2680 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2681 }
2682
2683 biosA0[0x00] = psxBios_open;
2684 biosA0[0x01] = psxBios_lseek;
2685 biosA0[0x02] = psxBios_read;
2686 biosA0[0x03] = psxBios_write;
2687 biosA0[0x04] = psxBios_close;
2688 //biosA0[0x05] = psxBios_ioctl;
2689 //biosA0[0x06] = psxBios_exit;
2690 //biosA0[0x07] = psxBios_sys_a0_07;
324cec89 2691 biosA0[0x08] = psxBios_getc;
2692 biosA0[0x09] = psxBios_putc;
ba11675c 2693 biosA0[0x0a] = psxBios_todigit;
ef79bbde
P		 2694 //biosA0[0x0b] = psxBios_atof;
2695 //biosA0[0x0c] = psxBios_strtoul;
2696 //biosA0[0x0d] = psxBios_strtol;
2697 biosA0[0x0e] = psxBios_abs;
2698 biosA0[0x0f] = psxBios_labs;
2699 biosA0[0x10] = psxBios_atoi;
2700 biosA0[0x11] = psxBios_atol;
2701 //biosA0[0x12] = psxBios_atob;
2702 biosA0[0x13] = psxBios_setjmp;
2703 biosA0[0x14] = psxBios_longjmp;
2704 biosA0[0x15] = psxBios_strcat;
2705 biosA0[0x16] = psxBios_strncat;
2706 biosA0[0x17] = psxBios_strcmp;
2707 biosA0[0x18] = psxBios_strncmp;
2708 biosA0[0x19] = psxBios_strcpy;
2709 biosA0[0x1a] = psxBios_strncpy;
2710 biosA0[0x1b] = psxBios_strlen;
2711 biosA0[0x1c] = psxBios_index;
2712 biosA0[0x1d] = psxBios_rindex;
2713 biosA0[0x1e] = psxBios_strchr;
2714 biosA0[0x1f] = psxBios_strrchr;
2715 biosA0[0x20] = psxBios_strpbrk;
2716 biosA0[0x21] = psxBios_strspn;
2717 biosA0[0x22] = psxBios_strcspn;
2718 biosA0[0x23] = psxBios_strtok;
2719 biosA0[0x24] = psxBios_strstr;
2720 biosA0[0x25] = psxBios_toupper;
2721 biosA0[0x26] = psxBios_tolower;
2722 biosA0[0x27] = psxBios_bcopy;
2723 biosA0[0x28] = psxBios_bzero;
2724 biosA0[0x29] = psxBios_bcmp;
2725 biosA0[0x2a] = psxBios_memcpy;
2726 biosA0[0x2b] = psxBios_memset;
2727 biosA0[0x2c] = psxBios_memmove;
2728 biosA0[0x2d] = psxBios_memcmp;
2729 biosA0[0x2e] = psxBios_memchr;
2730 biosA0[0x2f] = psxBios_rand;
2731 biosA0[0x30] = psxBios_srand;
2732 biosA0[0x31] = psxBios_qsort;
2733 //biosA0[0x32] = psxBios_strtod;
2734 biosA0[0x33] = psxBios_malloc;
2735 biosA0[0x34] = psxBios_free;
2736 //biosA0[0x35] = psxBios_lsearch;
2737 //biosA0[0x36] = psxBios_bsearch;
2738 biosA0[0x37] = psxBios_calloc;
2739 biosA0[0x38] = psxBios_realloc;
2740 biosA0[0x39] = psxBios_InitHeap;
2741 //biosA0[0x3a] = psxBios__exit;
2742 biosA0[0x3b] = psxBios_getchar;
2743 biosA0[0x3c] = psxBios_putchar;
2744 //biosA0[0x3d] = psxBios_gets;
2745 //biosA0[0x40] = psxBios_sys_a0_40;
2746 //biosA0[0x41] = psxBios_LoadTest;
2747 biosA0[0x42] = psxBios_Load;
2748 biosA0[0x43] = psxBios_Exec;
2749 biosA0[0x44] = psxBios_FlushCache;
2750 //biosA0[0x45] = psxBios_InstallInterruptHandler;
2751 biosA0[0x46] = psxBios_GPU_dw;
2752 biosA0[0x47] = psxBios_mem2vram;
2753 biosA0[0x48] = psxBios_SendGPU;
2754 biosA0[0x49] = psxBios_GPU_cw;
2755 biosA0[0x4a] = psxBios_GPU_cwb;
2756 biosA0[0x4b] = psxBios_GPU_SendPackets;
2757 biosA0[0x4c] = psxBios_sys_a0_4c;
2758 biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2759 //biosA0[0x4e] = psxBios_GPU_sync;
2760 //biosA0[0x4f] = psxBios_sys_a0_4f;
2761 //biosA0[0x50] = psxBios_sys_a0_50;
2762 biosA0[0x51] = psxBios_LoadExec;
2763 //biosA0[0x52] = psxBios_GetSysSp;
2764 //biosA0[0x53] = psxBios_sys_a0_53;
2765 //biosA0[0x54] = psxBios__96_init_a54;
2766 //biosA0[0x55] = psxBios__bu_init_a55;
2767 //biosA0[0x56] = psxBios__96_remove_a56;
2768 //biosA0[0x57] = psxBios_sys_a0_57;
2769 //biosA0[0x58] = psxBios_sys_a0_58;
2770 //biosA0[0x59] = psxBios_sys_a0_59;
2771 //biosA0[0x5a] = psxBios_sys_a0_5a;
2772 //biosA0[0x5b] = psxBios_dev_tty_init;
2773 //biosA0[0x5c] = psxBios_dev_tty_open;
2774 //biosA0[0x5d] = psxBios_sys_a0_5d;
2775 //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2776 //biosA0[0x5f] = psxBios_dev_cd_open;
2777 //biosA0[0x60] = psxBios_dev_cd_read;
2778 //biosA0[0x61] = psxBios_dev_cd_close;
2779 //biosA0[0x62] = psxBios_dev_cd_firstfile;
2780 //biosA0[0x63] = psxBios_dev_cd_nextfile;
2781 //biosA0[0x64] = psxBios_dev_cd_chdir;
2782 //biosA0[0x65] = psxBios_dev_card_open;
2783 //biosA0[0x66] = psxBios_dev_card_read;
2784 //biosA0[0x67] = psxBios_dev_card_write;
2785 //biosA0[0x68] = psxBios_dev_card_close;
2786 //biosA0[0x69] = psxBios_dev_card_firstfile;
2787 //biosA0[0x6a] = psxBios_dev_card_nextfile;
2788 //biosA0[0x6b] = psxBios_dev_card_erase;
2789 //biosA0[0x6c] = psxBios_dev_card_undelete;
2790 //biosA0[0x6d] = psxBios_dev_card_format;
2791 //biosA0[0x6e] = psxBios_dev_card_rename;
2792 //biosA0[0x6f] = psxBios_dev_card_6f;
2793 biosA0[0x70] = psxBios__bu_init;
2794 biosA0[0x71] = psxBios__96_init;
2795 biosA0[0x72] = psxBios__96_remove;
2796 //biosA0[0x73] = psxBios_sys_a0_73;
2797 //biosA0[0x74] = psxBios_sys_a0_74;
2798 //biosA0[0x75] = psxBios_sys_a0_75;
2799 //biosA0[0x76] = psxBios_sys_a0_76;
2800 //biosA0[0x77] = psxBios_sys_a0_77;
2801 //biosA0[0x78] = psxBios__96_CdSeekL;
2802 //biosA0[0x79] = psxBios_sys_a0_79;
2803 //biosA0[0x7a] = psxBios_sys_a0_7a;
2804 //biosA0[0x7b] = psxBios_sys_a0_7b;
2805 //biosA0[0x7c] = psxBios__96_CdGetStatus;
2806 //biosA0[0x7d] = psxBios_sys_a0_7d;
2807 //biosA0[0x7e] = psxBios__96_CdRead;
2808 //biosA0[0x7f] = psxBios_sys_a0_7f;
2809 //biosA0[0x80] = psxBios_sys_a0_80;
2810 //biosA0[0x81] = psxBios_sys_a0_81;
2811 //biosA0[0x82] = psxBios_sys_a0_82;
2812 //biosA0[0x83] = psxBios_sys_a0_83;
2813 //biosA0[0x84] = psxBios_sys_a0_84;
2814 //biosA0[0x85] = psxBios__96_CdStop;
2815 //biosA0[0x86] = psxBios_sys_a0_86;
2816 //biosA0[0x87] = psxBios_sys_a0_87;
2817 //biosA0[0x88] = psxBios_sys_a0_88;
2818 //biosA0[0x89] = psxBios_sys_a0_89;
2819 //biosA0[0x8a] = psxBios_sys_a0_8a;
2820 //biosA0[0x8b] = psxBios_sys_a0_8b;
2821 //biosA0[0x8c] = psxBios_sys_a0_8c;
2822 //biosA0[0x8d] = psxBios_sys_a0_8d;
2823 //biosA0[0x8e] = psxBios_sys_a0_8e;
2824 //biosA0[0x8f] = psxBios_sys_a0_8f;
2825 //biosA0[0x90] = psxBios_sys_a0_90;
2826 //biosA0[0x91] = psxBios_sys_a0_91;
2827 //biosA0[0x92] = psxBios_sys_a0_92;
2828 //biosA0[0x93] = psxBios_sys_a0_93;
2829 //biosA0[0x94] = psxBios_sys_a0_94;
2830 //biosA0[0x95] = psxBios_sys_a0_95;
2831 //biosA0[0x96] = psxBios_AddCDROMDevice;
2832 //biosA0[0x97] = psxBios_AddMemCardDevide;
2833 //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2834 //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2835 //biosA0[0x9a] = psxBios_sys_a0_9a;
2836 //biosA0[0x9b] = psxBios_sys_a0_9b;
2837 //biosA0[0x9c] = psxBios_SetConf;
2838 //biosA0[0x9d] = psxBios_GetConf;
2839 //biosA0[0x9e] = psxBios_sys_a0_9e;
2840 biosA0[0x9f] = psxBios_SetMem;
2841 //biosA0[0xa0] = psxBios__boot;
2842 //biosA0[0xa1] = psxBios_SystemError;
2843 //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2844 //biosA0[0xa3] = psxBios_DequeueCdIntr;
2845 //biosA0[0xa4] = psxBios_sys_a0_a4;
2846 //biosA0[0xa5] = psxBios_ReadSector;
2847 //biosA0[0xa6] = psxBios_get_cd_status;
2848 //biosA0[0xa7] = psxBios_bufs_cb_0;
2849 //biosA0[0xa8] = psxBios_bufs_cb_1;
2850 //biosA0[0xa9] = psxBios_bufs_cb_2;
2851 //biosA0[0xaa] = psxBios_bufs_cb_3;
2852 biosA0[0xab] = psxBios__card_info;
2853 biosA0[0xac] = psxBios__card_load;
2854 //biosA0[0axd] = psxBios__card_auto;
2855 //biosA0[0xae] = psxBios_bufs_cd_4;
2856 //biosA0[0xaf] = psxBios_sys_a0_af;
2857 //biosA0[0xb0] = psxBios_sys_a0_b0;
2858 //biosA0[0xb1] = psxBios_sys_a0_b1;
2859 //biosA0[0xb2] = psxBios_do_a_long_jmp
2860 //biosA0[0xb3] = psxBios_sys_a0_b3;
2861 //biosA0[0xb4] = psxBios_sub_function;
2862//*******************B0 CALLS****************************
2863 //biosB0[0x00] = psxBios_SysMalloc;
2864 //biosB0[0x01] = psxBios_sys_b0_01;
2865 biosB0[0x02] = psxBios_SetRCnt;
2866 biosB0[0x03] = psxBios_GetRCnt;
2867 biosB0[0x04] = psxBios_StartRCnt;
2868 biosB0[0x05] = psxBios_StopRCnt;
2869 biosB0[0x06] = psxBios_ResetRCnt;
2870 biosB0[0x07] = psxBios_DeliverEvent;
2871 biosB0[0x08] = psxBios_OpenEvent;
2872 biosB0[0x09] = psxBios_CloseEvent;
2873 biosB0[0x0a] = psxBios_WaitEvent;
2874 biosB0[0x0b] = psxBios_TestEvent;
2875 biosB0[0x0c] = psxBios_EnableEvent;
2876 biosB0[0x0d] = psxBios_DisableEvent;
2877 biosB0[0x0e] = psxBios_OpenTh;
2878 biosB0[0x0f] = psxBios_CloseTh;
2879 biosB0[0x10] = psxBios_ChangeTh;
2880 //biosB0[0x11] = psxBios_psxBios_b0_11;
2881 biosB0[0x12] = psxBios_InitPAD;
2882 biosB0[0x13] = psxBios_StartPAD;
2883 biosB0[0x14] = psxBios_StopPAD;
2884 biosB0[0x15] = psxBios_PAD_init;
2885 biosB0[0x16] = psxBios_PAD_dr;
2886 biosB0[0x17] = psxBios_ReturnFromException;
2887 biosB0[0x18] = psxBios_ResetEntryInt;
2888 biosB0[0x19] = psxBios_HookEntryInt;
2889 //biosB0[0x1a] = psxBios_sys_b0_1a;
2890 //biosB0[0x1b] = psxBios_sys_b0_1b;
2891 //biosB0[0x1c] = psxBios_sys_b0_1c;
2892 //biosB0[0x1d] = psxBios_sys_b0_1d;
2893 //biosB0[0x1e] = psxBios_sys_b0_1e;
2894 //biosB0[0x1f] = psxBios_sys_b0_1f;
2895 biosB0[0x20] = psxBios_UnDeliverEvent;
2896 //biosB0[0x21] = psxBios_sys_b0_21;
2897 //biosB0[0x22] = psxBios_sys_b0_22;
2898 //biosB0[0x23] = psxBios_sys_b0_23;
2899 //biosB0[0x24] = psxBios_sys_b0_24;
2900 //biosB0[0x25] = psxBios_sys_b0_25;
2901 //biosB0[0x26] = psxBios_sys_b0_26;
2902 //biosB0[0x27] = psxBios_sys_b0_27;
2903 //biosB0[0x28] = psxBios_sys_b0_28;
2904 //biosB0[0x29] = psxBios_sys_b0_29;
2905 //biosB0[0x2a] = psxBios_sys_b0_2a;
2906 //biosB0[0x2b] = psxBios_sys_b0_2b;
2907 //biosB0[0x2c] = psxBios_sys_b0_2c;
2908 //biosB0[0x2d] = psxBios_sys_b0_2d;
2909 //biosB0[0x2e] = psxBios_sys_b0_2e;
2910 //biosB0[0x2f] = psxBios_sys_b0_2f;
2911 //biosB0[0x30] = psxBios_sys_b0_30;
2912 //biosB0[0x31] = psxBios_sys_b0_31;
2913 biosB0[0x32] = psxBios_open;
2914 biosB0[0x33] = psxBios_lseek;
2915 biosB0[0x34] = psxBios_read;
2916 biosB0[0x35] = psxBios_write;
2917 biosB0[0x36] = psxBios_close;
2918 //biosB0[0x37] = psxBios_ioctl;
2919 //biosB0[0x38] = psxBios_exit;
2920 //biosB0[0x39] = psxBios_sys_b0_39;
2921 //biosB0[0x3a] = psxBios_getc;
2922 //biosB0[0x3b] = psxBios_putc;
2923 biosB0[0x3c] = psxBios_getchar;
2924 //biosB0[0x3e] = psxBios_gets;
2925 //biosB0[0x40] = psxBios_cd;
e7e1f572 2926 biosB0[0x41] = psxBios_format;
ef79bbde
P		 2927 biosB0[0x42] = psxBios_firstfile;
2928 biosB0[0x43] = psxBios_nextfile;
2929 biosB0[0x44] = psxBios_rename;
2930 biosB0[0x45] = psxBios_delete;
2931 //biosB0[0x46] = psxBios_undelete;
2932 //biosB0[0x47] = psxBios_AddDevice;
2933 //biosB0[0x48] = psxBios_RemoteDevice;
2934 //biosB0[0x49] = psxBios_PrintInstalledDevices;
2935 biosB0[0x4a] = psxBios_InitCARD;
2936 biosB0[0x4b] = psxBios_StartCARD;
2937 biosB0[0x4c] = psxBios_StopCARD;
2938 //biosB0[0x4d] = psxBios_sys_b0_4d;
2939 biosB0[0x4e] = psxBios__card_write;
2940 biosB0[0x4f] = psxBios__card_read;
2941 biosB0[0x50] = psxBios__new_card;
2942 biosB0[0x51] = psxBios_Krom2RawAdd;
2943 //biosB0[0x52] = psxBios_sys_b0_52;
2944 //biosB0[0x53] = psxBios_sys_b0_53;
2945 //biosB0[0x54] = psxBios__get_errno;
002b2f7d 2946 biosB0[0x55] = psxBios__get_error;
ef79bbde
P		 2947 biosB0[0x56] = psxBios_GetC0Table;
2948 biosB0[0x57] = psxBios_GetB0Table;
e9fda093 2949 biosB0[0x58] = psxBios__card_chan;
ef79bbde
P		 2950 //biosB0[0x59] = psxBios_sys_b0_59;
2951 //biosB0[0x5a] = psxBios_sys_b0_5a;
2952 biosB0[0x5b] = psxBios_ChangeClearPad;
21af3ff6 2953 biosB0[0x5c] = psxBios__card_status;
ef79bbde
P		 2954 //biosB0[0x5d] = psxBios__card_wait;
2955//*******************C0 CALLS****************************
2956 //biosC0[0x00] = psxBios_InitRCnt;
2957 //biosC0[0x01] = psxBios_InitException;
2958 biosC0[0x02] = psxBios_SysEnqIntRP;
2959 biosC0[0x03] = psxBios_SysDeqIntRP;
2960 //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2961 //biosC0[0x05] = psxBios_get_free_TCB_slot;
2962 //biosC0[0x06] = psxBios_ExceptionHandler;
2963 //biosC0[0x07] = psxBios_InstallExeptionHandler;
2964 //biosC0[0x08] = psxBios_SysInitMemory;
2965 //biosC0[0x09] = psxBios_SysInitKMem;
2966 biosC0[0x0a] = psxBios_ChangeClearRCnt;
2967 //biosC0[0x0b] = psxBios_SystemError;
2968 //biosC0[0x0c] = psxBios_InitDefInt;
2969 //biosC0[0x0d] = psxBios_sys_c0_0d;
2970 //biosC0[0x0e] = psxBios_sys_c0_0e;
2971 //biosC0[0x0f] = psxBios_sys_c0_0f;
2972 //biosC0[0x10] = psxBios_sys_c0_10;
2973 //biosC0[0x11] = psxBios_sys_c0_11;
2974 //biosC0[0x12] = psxBios_InstallDevices;
2975 //biosC0[0x13] = psxBios_FlushStfInOutPut;
2976 //biosC0[0x14] = psxBios_sys_c0_14;
2977 //biosC0[0x15] = psxBios__cdevinput;
2978 //biosC0[0x16] = psxBios__cdevscan;
2979 //biosC0[0x17] = psxBios__circgetc;
2980 //biosC0[0x18] = psxBios__circputc;
2981 //biosC0[0x19] = psxBios_ioabort;
2982 //biosC0[0x1a] = psxBios_sys_c0_1a
2983 //biosC0[0x1b] = psxBios_KernelRedirect;
2984 //biosC0[0x1c] = psxBios_PatchAOTable;
2985//************** THE END ***************************************
2986/**/
2987 base = 0x1000;
2988 size = sizeof(EvCB) * 32;
2989 Event = (void *)&psxR[base]; base += size * 6;
2990 memset(Event, 0, size * 6);
2991 HwEV = Event;
2992 EvEV = Event + 32;
2993 RcEV = Event + 32 * 2;
2994 UeEV = Event + 32 * 3;
2995 SwEV = Event + 32 * 4;
2996 ThEV = Event + 32 * 5;
2997
2998 ptr = (u32 *)&psxM[0x0874]; // b0 table
2999 ptr[0] = SWAPu32(0x4c54 - 0x884);
3000
3001 ptr = (u32 *)&psxM[0x0674]; // c0 table
3002 ptr[6] = SWAPu32(0xc80);
3003
3004 memset(SysIntRP, 0, sizeof(SysIntRP));
3005 memset(Thread, 0, sizeof(Thread));
3006 Thread[0].status = 2; // main thread
3007
c62b43c9 3008 jmp_int = NULL;
3009 pad_buf = NULL;
3010 pad_buf1 = NULL;
3011 pad_buf2 = NULL;
3012 pad_buf1len = pad_buf2len = 0;
3013 heap_addr = NULL;
3014 heap_end = NULL;
26b964b5 3015 heap_size = 0;
c62b43c9 3016 CardState = -1;
3017 CurThread = 0;
3018 memset(FDesc, 0, sizeof(FDesc));
3019
ef79bbde
P		 3020 psxMu32ref(0x0150) = SWAPu32(0x160);
3021 psxMu32ref(0x0154) = SWAPu32(0x320);
3022 psxMu32ref(0x0160) = SWAPu32(0x248);
3023 strcpy((char *)&psxM[0x248], "bu");
3024/* psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
3025 psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
3026 psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
3027 psxMu32ref(0x09e0) = SWAPu32(0x43d0);
3028 psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
3029*/
3030 // opcode HLE
3031 psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
3032 psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
3033 psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
3034 psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
3035 psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
3036 psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
3037 psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
3038 psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
3039 psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
3040 psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
3041
3042 // initial stack pointer for BIOS interrupt
3043 psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
3044
3045 // initial RNG seed
3046 psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
3047
3048 // fonts
3049 len = 0x80000 - 0x66000;
3050 uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
3051 len = 0x80000 - 0x69d68;
3052 uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
3053
3054 // memory size 2 MB
3055 psxHu32ref(0x1060) = SWAPu32(0x00000b88);
3056
3057 hleSoftCall = FALSE;
3058}
3059
3060void psxBiosShutdown() {
3061}
3062
3063#define psxBios_PADpoll(pad) { \
3064 PAD##pad##_startPoll(pad); \
3065 pad_buf##pad[0] = 0; \
3066 pad_buf##pad[1] = PAD##pad##_poll(0x42); \
3067 if (!(pad_buf##pad[1] & 0x0f)) { \
3068 bufcount = 32; \
3069 } else { \
3070 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
3071 } \
3072 PAD##pad##_poll(0); \
3073 i = 2; \
3074 while (bufcount--) { \
3075 pad_buf##pad[i++] = PAD##pad##_poll(0); \
3076 } \
3077}
3078
3079void biosInterrupt() {
3080 int i, bufcount;
3081
3082// if (psxHu32(0x1070) & 0x1) { // Vsync
3083 if (pad_buf != NULL) {
3084 u32 *buf = (u32*)pad_buf;
3085
3086 if (!Config.UseNet) {
3087 PAD1_startPoll(1);
3088 if (PAD1_poll(0x42) == 0x23) {
3089 PAD1_poll(0);
3090 *buf = PAD1_poll(0) << 8;
3091 *buf |= PAD1_poll(0);
3092 PAD1_poll(0);
3093 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
3094 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
3095 } else {
3096 PAD1_poll(0);
3097 *buf = PAD1_poll(0) << 8;
3098 *buf|= PAD1_poll(0);
3099 }
3100
3101 PAD2_startPoll(2);
3102 if (PAD2_poll(0x42) == 0x23) {
3103 PAD2_poll(0);
3104 *buf |= PAD2_poll(0) << 24;
3105 *buf |= PAD2_poll(0) << 16;
3106 PAD2_poll(0);
3107 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
3108 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
3109 } else {
3110 PAD2_poll(0);
3111 *buf |= PAD2_poll(0) << 24;
3112 *buf |= PAD2_poll(0) << 16;
3113 }
3114 } else {
3115 u16 data;
3116
3117 PAD1_startPoll(1);
3118 PAD1_poll(0x42);
3119 PAD1_poll(0);
3120 data = PAD1_poll(0) << 8;
3121 data |= PAD1_poll(0);
3122
3123 if (NET_sendPadData(&data, 2) == -1)
3124 netError();
3125
3126 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
3127 netError();
3128 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3129 netError();
3130 }
3131 }
3132 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3133 psxBios_PADpoll(1);
3134
3135 if (NET_sendPadData(pad_buf1, i) == -1)
3136 netError();
3137
3138 if (NET_recvPadData(pad_buf1, 1) == -1)
3139 netError();
3140 if (NET_recvPadData(pad_buf2, 2) == -1)
3141 netError();
3142 } else {
f25c285b 3143 if (!pad_stopped) {
3144 if (pad_buf1) {
3145 psxBios_PADpoll(1);
3146 }
ef79bbde 3147
f25c285b 3148 if (pad_buf2) {
3149 psxBios_PADpoll(2);
3150 }
ef79bbde
P		 3151 }
3152 }
3153
3154 if (psxHu32(0x1070) & 0x1) { // Vsync
3155 if (RcEV[3][1].status == EvStACTIVE) {
3156 softCall(RcEV[3][1].fhandler);
3157// hwWrite32(0x1f801070, ~(1));
3158 }
3159 }
3160
3161 if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3162 int i;
3163
3164 for (i = 0; i < 3; i++) {
3165 if (psxHu32(0x1070) & (1 << (i + 4))) {
3166 if (RcEV[i][1].status == EvStACTIVE) {
3167 softCall(RcEV[i][1].fhandler);
3168 }
3169 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3170 }
3171 }
3172 }
3173}
3174
3175void psxBiosException() {
3176 int i;
3177
3178 switch (psxRegs.CP0.n.Cause & 0x3c) {
3179 case 0x00: // Interrupt
3180#ifdef PSXCPU_LOG
3181// PSXCPU_LOG("interrupt\n");
3182#endif
3183 SaveRegs();
3184
3185 sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3186
3187 biosInterrupt();
3188
3189 for (i = 0; i < 8; i++) {
3190 if (SysIntRP[i]) {
3191 u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3192
3193 s0 = queue[2];
3194 softCall(queue[1]);
3195 }
3196 }
3197
3198 if (jmp_int != NULL) {
3199 int i;
3200
3201 psxHwWrite32(0x1f801070, 0xffffffff);
3202
3203 ra = jmp_int[0];
3204 sp = jmp_int[1];
3205 fp = jmp_int[2];
3206 for (i = 0; i < 8; i++) // s0-s7
3207 psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3208 gp = jmp_int[11];
3209
3210 v0 = 1;
3211 pc0 = ra;
3212 return;
3213 }
3214 psxHwWrite16(0x1f801070, 0);
3215 break;
3216
3217 case 0x20: // Syscall
3218#ifdef PSXCPU_LOG
3219 PSXCPU_LOG("syscall exp %x\n", a0);
3220#endif
3221 switch (a0) {
3222 case 1: // EnterCritical - disable irq's
79dad1b3 3223 /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3224 v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3225 psxRegs.CP0.n.Status &= ~0x404;
ef79bbde
P		 3226 break;
3227
3228 case 2: // ExitCritical - enable irq's
3229 psxRegs.CP0.n.Status |= 0x404;
3230 break;
a946d159 3231 /* Normally this should cover SYS(00h, SYS(04h but they don't do anything relevant so... */
3232 default:
3233 break;
ef79bbde
P		 3234 }
3235 pc0 = psxRegs.CP0.n.EPC + 4;
3236
3237 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3238 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3239 return;
3240
3241 default:
3242#ifdef PSXCPU_LOG
3243 PSXCPU_LOG("unknown bios exception!\n");
3244#endif
3245 break;
3246 }
3247
3248 pc0 = psxRegs.CP0.n.EPC;
3249 if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3250
3251 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3252 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3253}
3254
3255#define bfreeze(ptr, size) { \
3256 if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3257 if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3258 base += size; \
3259}
3260
3261#define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3262#define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3263
3264#define bfreezepsxMptr(ptr, type) { \
3265 if (Mode == 1) { \
3266 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3267 else psxRu32ref(base) = 0; \
3268 } else { \
3269 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3270 else (ptr) = NULL; \
3271 } \
3272 base += sizeof(u32); \
3273}
3274
3275void psxBiosFreeze(int Mode) {
3276 u32 base = 0x40000;
3277
f25c285b 3278 pad_stopped = 0;
ef79bbde
P		 3279 bfreezepsxMptr(jmp_int, u32);
3280 bfreezepsxMptr(pad_buf, int);
3281 bfreezepsxMptr(pad_buf1, char);
3282 bfreezepsxMptr(pad_buf2, char);
3283 bfreezepsxMptr(heap_addr, u32);
3284 bfreezel(&pad_buf1len);
3285 bfreezel(&pad_buf2len);
3286 bfreezes(regs);
3287 bfreezes(SysIntRP);
3288 bfreezel(&CardState);
3289 bfreezes(Thread);
3290 bfreezel(&CurThread);
3291 bfreezes(FDesc);
e9fda093 3292 bfreezel(&card_active_chan);
ef79bbde 3293}
ARM optimized PCSX fork