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psxbios: Fixes save issues on Parasite Eve II, Parasite Eve I and others
[pcsx_rearmed.git] / libpcsxcore / psxbios.c
CommitLineData
ef79bbde
P		 1/***************************************************************************
2 * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team *
3 * *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
8 * *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
13 * *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. *
18 ***************************************************************************/
19
20/*
21 * Internal simulated HLE BIOS.
22 */
23
24// TODO: implement all system calls, count the exact CPU cycles of system calls.
25
26#include "psxbios.h"
27#include "psxhw.h"
ddbaf678 28#include "gpu.h"
496d88d4 29#include <zlib.h>
ef79bbde 30
452b85f9 31#undef SysPrintf
32#define SysPrintf if (Config.PsxOut) printf
33
ef79bbde
P		 34char *biosA0n[256] = {
35// 0x00
36 "open", "lseek", "read", "write",
37 "close", "ioctl", "exit", "sys_a0_07",
38 "getc", "putc", "todigit", "atof",
39 "strtoul", "strtol", "abs", "labs",
40// 0x10
41 "atoi", "atol", "atob", "setjmp",
42 "longjmp", "strcat", "strncat", "strcmp",
43 "strncmp", "strcpy", "strncpy", "strlen",
44 "index", "rindex", "strchr", "strrchr",
45// 0x20
46 "strpbrk", "strspn", "strcspn", "strtok",
47 "strstr", "toupper", "tolower", "bcopy",
48 "bzero", "bcmp", "memcpy", "memset",
49 "memmove", "memcmp", "memchr", "rand",
50// 0x30
51 "srand", "qsort", "strtod", "malloc",
52 "free", "lsearch", "bsearch", "calloc",
53 "realloc", "InitHeap", "_exit", "getchar",
54 "putchar", "gets", "puts", "printf",
55// 0x40
56 "sys_a0_40", "LoadTest", "Load", "Exec",
57 "FlushCache", "InstallInterruptHandler", "GPU_dw", "mem2vram",
58 "SendGPUStatus", "GPU_cw", "GPU_cwb", "SendPackets",
59 "sys_a0_4c", "GetGPUStatus", "GPU_sync", "sys_a0_4f",
60// 0x50
61 "sys_a0_50", "LoadExec", "GetSysSp", "sys_a0_53",
62 "_96_init()", "_bu_init()", "_96_remove()", "sys_a0_57",
63 "sys_a0_58", "sys_a0_59", "sys_a0_5a", "dev_tty_init",
64 "dev_tty_open", "sys_a0_5d", "dev_tty_ioctl","dev_cd_open",
65// 0x60
66 "dev_cd_read", "dev_cd_close", "dev_cd_firstfile", "dev_cd_nextfile",
67 "dev_cd_chdir", "dev_card_open", "dev_card_read", "dev_card_write",
68 "dev_card_close", "dev_card_firstfile", "dev_card_nextfile","dev_card_erase",
69 "dev_card_undelete","dev_card_format", "dev_card_rename", "dev_card_6f",
70// 0x70
71 "_bu_init", "_96_init", "_96_remove", "sys_a0_73",
72 "sys_a0_74", "sys_a0_75", "sys_a0_76", "sys_a0_77",
73 "_96_CdSeekL", "sys_a0_79", "sys_a0_7a", "sys_a0_7b",
74 "_96_CdGetStatus", "sys_a0_7d", "_96_CdRead", "sys_a0_7f",
75// 0x80
76 "sys_a0_80", "sys_a0_81", "sys_a0_82", "sys_a0_83",
77 "sys_a0_84", "_96_CdStop", "sys_a0_86", "sys_a0_87",
78 "sys_a0_88", "sys_a0_89", "sys_a0_8a", "sys_a0_8b",
79 "sys_a0_8c", "sys_a0_8d", "sys_a0_8e", "sys_a0_8f",
80// 0x90
81 "sys_a0_90", "sys_a0_91", "sys_a0_92", "sys_a0_93",
82 "sys_a0_94", "sys_a0_95", "AddCDROMDevice", "AddMemCardDevide",
83 "DisableKernelIORedirection", "EnableKernelIORedirection", "sys_a0_9a", "sys_a0_9b",
84 "SetConf", "GetConf", "sys_a0_9e", "SetMem",
85// 0xa0
86 "_boot", "SystemError", "EnqueueCdIntr", "DequeueCdIntr",
87 "sys_a0_a4", "ReadSector", "get_cd_status", "bufs_cb_0",
88 "bufs_cb_1", "bufs_cb_2", "bufs_cb_3", "_card_info",
89 "_card_load", "_card_auto", "bufs_cd_4", "sys_a0_af",
90// 0xb0
91 "sys_a0_b0", "sys_a0_b1", "do_a_long_jmp", "sys_a0_b3",
92 "?? sub_function",
93};
94
95char *biosB0n[256] = {
96// 0x00
97 "SysMalloc", "sys_b0_01", "sys_b0_02", "sys_b0_03",
98 "sys_b0_04", "sys_b0_05", "sys_b0_06", "DeliverEvent",
99 "OpenEvent", "CloseEvent", "WaitEvent", "TestEvent",
100 "EnableEvent", "DisableEvent", "OpenTh", "CloseTh",
101// 0x10
102 "ChangeTh", "sys_b0_11", "InitPAD", "StartPAD",
103 "StopPAD", "PAD_init", "PAD_dr", "ReturnFromExecption",
104 "ResetEntryInt", "HookEntryInt", "sys_b0_1a", "sys_b0_1b",
105 "sys_b0_1c", "sys_b0_1d", "sys_b0_1e", "sys_b0_1f",
106// 0x20
107 "UnDeliverEvent", "sys_b0_21", "sys_b0_22", "sys_b0_23",
108 "sys_b0_24", "sys_b0_25", "sys_b0_26", "sys_b0_27",
109 "sys_b0_28", "sys_b0_29", "sys_b0_2a", "sys_b0_2b",
110 "sys_b0_2c", "sys_b0_2d", "sys_b0_2e", "sys_b0_2f",
111// 0x30
112 "sys_b0_30", "sys_b0_31", "open", "lseek",
113 "read", "write", "close", "ioctl",
114 "exit", "sys_b0_39", "getc", "putc",
115 "getchar", "putchar", "gets", "puts",
116// 0x40
117 "cd", "format", "firstfile", "nextfile",
118 "rename", "delete", "undelete", "AddDevice",
119 "RemoteDevice", "PrintInstalledDevices", "InitCARD", "StartCARD",
120 "StopCARD", "sys_b0_4d", "_card_write", "_card_read",
121// 0x50
122 "_new_card", "Krom2RawAdd", "sys_b0_52", "sys_b0_53",
123 "_get_errno", "_get_error", "GetC0Table", "GetB0Table",
124 "_card_chan", "sys_b0_59", "sys_b0_5a", "ChangeClearPAD",
125 "_card_status", "_card_wait",
126};
127
128char *biosC0n[256] = {
129// 0x00
130 "InitRCnt", "InitException", "SysEnqIntRP", "SysDeqIntRP",
131 "get_free_EvCB_slot", "get_free_TCB_slot", "ExceptionHandler", "InstallExeptionHandler",
132 "SysInitMemory", "SysInitKMem", "ChangeClearRCnt", "SystemError",
133 "InitDefInt", "sys_c0_0d", "sys_c0_0e", "sys_c0_0f",
134// 0x10
135 "sys_c0_10", "sys_c0_11", "InstallDevices", "FlushStfInOutPut",
136 "sys_c0_14", "_cdevinput", "_cdevscan", "_circgetc",
137 "_circputc", "ioabort", "sys_c0_1a", "KernelRedirect",
138 "PatchAOTable",
139};
140
141//#define r0 (psxRegs.GPR.n.r0)
142#define at (psxRegs.GPR.n.at)
143#define v0 (psxRegs.GPR.n.v0)
144#define v1 (psxRegs.GPR.n.v1)
145#define a0 (psxRegs.GPR.n.a0)
146#define a1 (psxRegs.GPR.n.a1)
147#define a2 (psxRegs.GPR.n.a2)
148#define a3 (psxRegs.GPR.n.a3)
149#define t0 (psxRegs.GPR.n.t0)
150#define t1 (psxRegs.GPR.n.t1)
151#define t2 (psxRegs.GPR.n.t2)
152#define t3 (psxRegs.GPR.n.t3)
153#define t4 (psxRegs.GPR.n.t4)
154#define t5 (psxRegs.GPR.n.t5)
155#define t6 (psxRegs.GPR.n.t6)
156#define t7 (psxRegs.GPR.n.t7)
157#define t8 (psxRegs.GPR.n.t8)
158#define t9 (psxRegs.GPR.n.t9)
159#define s0 (psxRegs.GPR.n.s0)
160#define s1 (psxRegs.GPR.n.s1)
161#define s2 (psxRegs.GPR.n.s2)
162#define s3 (psxRegs.GPR.n.s3)
163#define s4 (psxRegs.GPR.n.s4)
164#define s5 (psxRegs.GPR.n.s5)
165#define s6 (psxRegs.GPR.n.s6)
166#define s7 (psxRegs.GPR.n.s7)
167#define k0 (psxRegs.GPR.n.k0)
168#define k1 (psxRegs.GPR.n.k1)
169#define gp (psxRegs.GPR.n.gp)
170#define sp (psxRegs.GPR.n.sp)
171#define fp (psxRegs.GPR.n.s8)
172#define ra (psxRegs.GPR.n.ra)
173#define pc0 (psxRegs.pc)
174
175#define Ra0 ((char *)PSXM(a0))
176#define Ra1 ((char *)PSXM(a1))
177#define Ra2 ((char *)PSXM(a2))
178#define Ra3 ((char *)PSXM(a3))
179#define Rv0 ((char *)PSXM(v0))
180#define Rsp ((char *)PSXM(sp))
181
182typedef struct {
183 u32 desc;
184 s32 status;
185 s32 mode;
186 u32 fhandler;
187} EvCB[32];
188
189#define EvStUNUSED 0x0000
190#define EvStWAIT 0x1000
191#define EvStACTIVE 0x2000
192#define EvStALREADY 0x4000
193
194#define EvMdINTR 0x1000
195#define EvMdNOINTR 0x2000
196
197/*
198typedef struct {
199 s32 next;
200 s32 func1;
201 s32 func2;
202 s32 pad;
203} SysRPst;
204*/
205
206typedef struct {
207 s32 status;
208 s32 mode;
209 u32 reg[32];
210 u32 func;
211} TCB;
212
213typedef struct {
214 u32 _pc0;
215 u32 gp0;
216 u32 t_addr;
217 u32 t_size;
218 u32 d_addr;
219 u32 d_size;
220 u32 b_addr;
221 u32 b_size;
222 u32 S_addr;
223 u32 s_size;
224 u32 _sp, _fp, _gp, ret, base;
225} EXEC;
226
227struct DIRENTRY {
228 char name[20];
229 s32 attr;
230 s32 size;
231 u32 next;
232 s32 head;
233 char system[4];
234};
235
236typedef struct {
237 char name[32];
238 u32 mode;
239 u32 offset;
240 u32 size;
241 u32 mcfile;
242} FileDesc;
243
244static u32 *jmp_int = NULL;
245static int *pad_buf = NULL;
246static char *pad_buf1 = NULL, *pad_buf2 = NULL;
247static int pad_buf1len, pad_buf2len;
248
249static u32 regs[35];
250static EvCB *Event;
251static EvCB *HwEV; // 0xf0
252static EvCB *EvEV; // 0xf1
253static EvCB *RcEV; // 0xf2
254static EvCB *UeEV; // 0xf3
255static EvCB *SwEV; // 0xf4
256static EvCB *ThEV; // 0xff
26b964b5 257static u32 heap_size = 0;
ef79bbde
P		 258static u32 *heap_addr = NULL;
259static u32 *heap_end = NULL;
260static u32 SysIntRP[8];
261static int CardState = -1;
262static TCB Thread[8];
263static int CurThread = 0;
264static FileDesc FDesc[32];
e9fda093 265static u32 card_active_chan;
ef79bbde
P		 266
267boolean hleSoftCall = FALSE;
268
269static inline void softCall(u32 pc) {
270 pc0 = pc;
271 ra = 0x80001000;
272
273 hleSoftCall = TRUE;
274
275 while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
276
277 hleSoftCall = FALSE;
278}
279
280static inline void softCall2(u32 pc) {
281 u32 sra = ra;
282 pc0 = pc;
283 ra = 0x80001000;
284
285 hleSoftCall = TRUE;
286
287 while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
288 ra = sra;
289
290 hleSoftCall = FALSE;
291}
292
293static inline void DeliverEvent(u32 ev, u32 spec) {
294 if (Event[ev][spec].status != EvStACTIVE) return;
295
296// Event[ev][spec].status = EvStALREADY;
297 if (Event[ev][spec].mode == EvMdINTR) {
298 softCall2(Event[ev][spec].fhandler);
299 } else Event[ev][spec].status = EvStALREADY;
300}
301
302static inline void SaveRegs() {
303 memcpy(regs, psxRegs.GPR.r, 32*4);
304 regs[32] = psxRegs.GPR.n.lo;
305 regs[33] = psxRegs.GPR.n.hi;
306 regs[34] = psxRegs.pc;
307}
308
309static inline void LoadRegs() {
310 memcpy(psxRegs.GPR.r, regs, 32*4);
311 psxRegs.GPR.n.lo = regs[32];
312 psxRegs.GPR.n.hi = regs[33];
313}
314
315/* *
316// *
317// *
318// System calls A0 */
319
d99f6068 320
321#define buread(Ra1, mcd, length) { \
322 SysPrintf("read %d: %x,%x (%s)\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2, Mcd##mcd##Data + 128 * FDesc[1 + mcd].mcfile + 0xa); \
323 ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
324 memcpy(Ra1, ptr, length); \
f1514614 325 if (FDesc[1 + mcd].mode & 0x8000) { \
d99f6068 326 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
327 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
f1514614 328 v0 = 0; } \
d99f6068 329 else v0 = length; \
330 FDesc[1 + mcd].offset += v0; \
331}
332
333#define buwrite(Ra1, mcd, length) { \
334 u32 offset = + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
335 SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
336 ptr = Mcd##mcd##Data + offset; \
337 memcpy(ptr, Ra1, length); \
f1514614 338 FDesc[1 + mcd].offset += length; \
339 if (FDesc[1 + mcd].mode & 0x8000) { \
d99f6068 340 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
341 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
f1514614 342 v0 = 0; } \
d99f6068 343 else v0 = length; \
344}
345
346
324cec89 347/* Internally redirects to "FileRead(fd,tempbuf,1)".*/
348/* For some strange reason, the returned character is sign-expanded; */
349/* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
350/* TODO FIX ME : Properly implement this behaviour */
351void psxBios_getc(void) // 0x03, 0x35
352{
d99f6068 353 char *ptr;
324cec89 354 void *pa1 = Ra1;
355#ifdef PSXBIOS_LOG
356 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
357#endif
358 v0 = -1;
359
360 if (pa1) {
361 switch (a0) {
362 case 2: buread(pa1, 1, 1); break;
363 case 3: buread(pa1, 2, 1); break;
364 }
365 }
366
367 pc0 = ra;
368}
369
370/* Copy of psxBios_write, except size is 1. */
371void psxBios_putc(void) // 0x09, 0x3B
372{
d99f6068 373 char *ptr;
324cec89 374 void *pa1 = Ra1;
375#ifdef PSXBIOS_LOG
376 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
377#endif
378 v0 = -1;
379 if (!pa1) {
380 pc0 = ra;
381 return;
382 }
383
384 if (a0 == 1) { // stdout
385 char *ptr = (char *)pa1;
386
387 v0 = a2;
388 while (a2 > 0) {
389 printf("%c", *ptr++); a2--;
390 }
391 pc0 = ra; return;
392 }
393
394 switch (a0) {
395 case 2: buwrite(pa1, 1, 1); break;
396 case 3: buwrite(pa1, 2, 1); break;
397 }
398
399 pc0 = ra;
400}
ef79bbde 401
ba11675c 402void psxBios_todigit(void) // 0x0a
403{
404 int c = a0;
405#ifdef PSXBIOS_LOG
406 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
407#endif
408 c &= 0xFF;
409 if (c >= 0x30 && c < 0x3A) {
410 c -= 0x30;
411 }
412 else if (c > 0x60 && c < 0x7B) {
413 c -= 0x20;
414 }
415 else if (c > 0x40 && c < 0x5B) {
416 c = c - 0x41 + 10;
417 }
418 else if (c >= 0x80) {
419 c = -1;
420 }
421 else
422 {
423 c = 0x0098967F;
424 }
425 v0 = c;
426 pc0 = ra;
427}
428
ef79bbde
P		 429void psxBios_abs() { // 0x0e
430 if ((s32)a0 < 0) v0 = -(s32)a0;
431 else v0 = a0;
432 pc0 = ra;
433}
434
435void psxBios_labs() { // 0x0f
436 psxBios_abs();
437}
438
439void psxBios_atoi() { // 0x10
440 s32 n = 0, f = 0;
441 char *p = (char *)Ra0;
442
443 for (;;p++) {
444 switch (*p) {
445 case ' ': case '\t': continue;
446 case '-': f++;
447 case '+': p++;
448 }
449 break;
450 }
451
452 while (*p >= '0' && *p <= '9') {
453 n = n * 10 + *p++ - '0';
454 }
455
456 v0 = (f ? -n : n);
457 pc0 = ra;
458}
459
460void psxBios_atol() { // 0x11
461 psxBios_atoi();
462}
463
464void psxBios_setjmp() { // 0x13
465 u32 *jmp_buf = (u32 *)Ra0;
466 int i;
467
468#ifdef PSXBIOS_LOG
469 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
470#endif
471
472 jmp_buf[0] = ra;
473 jmp_buf[1] = sp;
474 jmp_buf[2] = fp;
475 for (i = 0; i < 8; i++) // s0-s7
476 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
477 jmp_buf[11] = gp;
478
479 v0 = 0; pc0 = ra;
480}
481
482void psxBios_longjmp() { // 0x14
483 u32 *jmp_buf = (u32 *)Ra0;
484 int i;
485
486#ifdef PSXBIOS_LOG
487 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
488#endif
489
490 ra = jmp_buf[0]; /* ra */
491 sp = jmp_buf[1]; /* sp */
492 fp = jmp_buf[2]; /* fp */
493 for (i = 0; i < 8; i++) // s0-s7
494 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
495 gp = jmp_buf[11]; /* gp */
496
497 v0 = a1; pc0 = ra;
498}
499
500void psxBios_strcat() { // 0x15
501 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
502
503#ifdef PSXBIOS_LOG
504 PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
505#endif
bee52312 506 if (a0 == 0 || a1 == 0)
507 {
508 v0 = 0;
509 pc0 = ra;
510 return;
511 }
ef79bbde
P		 512 while (*p1++);
513 --p1;
514 while ((*p1++ = *p2++) != '\0');
515
516 v0 = a0; pc0 = ra;
517}
518
519void psxBios_strncat() { // 0x16
520 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
521 s32 n = a2;
522
523#ifdef PSXBIOS_LOG
524 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
525#endif
f42e1e90 526 if (a0 == 0 || a1 == 0)
527 {
528 v0 = 0;
529 pc0 = ra;
530 return;
531 }
ef79bbde
P		 532 while (*p1++);
533 --p1;
534 while ((*p1++ = *p2++) != '\0') {
535 if (--n < 0) {
536 *--p1 = '\0';
537 break;
538 }
539 }
540
541 v0 = a0; pc0 = ra;
542}
543
544void psxBios_strcmp() { // 0x17
545 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
c044e3e5 546 s32 n=0;
547 if (a0 == 0 && a1 == 0)
548 {
549 v0 = 0;
550 pc0 = ra;
551 return;
552 }
553 else if (a0 == 0 && a1 != 0)
554 {
555 v0 = -1;
556 pc0 = ra;
557 return;
558 }
559 else if (a0 != 0 && a1 == 0)
560 {
561 v0 = 1;
562 pc0 = ra;
563 return;
564 }
ef79bbde
P		 565#ifdef PSXBIOS_LOG
566 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
567#endif
568
569 while (*p1 == *p2++) {
c044e3e5 570 n++;
ef79bbde 571 if (*p1++ == '\0') {
c044e3e5 572 v1=n-1;
573 a0+=n;
574 a1+=n;
ef79bbde
P		 575 v0 = 0;
576 pc0 = ra;
577 return;
578 }
579 }
580
581 v0 = (*p1 - *--p2);
c044e3e5 582 v1 = n;
583 a0+=n;
584 a1+=n;
ef79bbde
P		 585 pc0 = ra;
586}
587
588void psxBios_strncmp() { // 0x18
589 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
590 s32 n = a2;
ba4ecb8c 591 if (a0 == 0 && a1 == 0)
592 {
593 v0 = 0;
594 pc0 = ra;
595 return;
596 }
597 else if (a0 == 0 && a1 != 0)
598 {
599 v0 = -1;
600 pc0 = ra;
601 return;
602 }
603 else if (a0 != 0 && a1 == 0)
604 {
605 v0 = 1;
606 pc0 = ra;
607 return;
608 }
ef79bbde
P		 609#ifdef PSXBIOS_LOG
610 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
611#endif
612
613 while (--n >= 0 && *p1 == *p2++) {
614 if (*p1++ == '\0') {
615 v0 = 0;
616 pc0 = ra;
ba4ecb8c 617 v1 = a2 - ((a2-n) - 1);
618 a0 += (a2-n) - 1;
619 a1 += (a2-n) - 1;
620 a2 = n;
ef79bbde
P		 621 return;
622 }
623 }
624
625 v0 = (n < 0 ? 0 : *p1 - *--p2);
626 pc0 = ra;
ba4ecb8c 627 v1 = a2 - ((a2-n) - 1);
628 a0 += (a2-n) - 1;
629 a1 += (a2-n) - 1;
630 a2 = n;
ef79bbde
P		 631}
632
633void psxBios_strcpy() { // 0x19
634 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
c3d791f1 635 if (a0 == 0 || a1 == 0)
636 {
637 v0 = 0;
638 pc0 = ra;
639 return;
640 }
ef79bbde
P		 641 while ((*p1++ = *p2++) != '\0');
642
643 v0 = a0; pc0 = ra;
644}
645
646void psxBios_strncpy() { // 0x1a
647 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
648 s32 n = a2, i;
c3d791f1 649 if (a0 == 0 || a1 == 0)
650 {
651 v0 = 0;
652 pc0 = ra;
653 return;
654 }
ef79bbde
P		 655 for (i = 0; i < n; i++) {
656 if ((*p1++ = *p2++) == '\0') {
657 while (++i < n) {
658 *p1++ = '\0';
659 }
660 v0 = a0; pc0 = ra;
661 return;
662 }
663 }
664
665 v0 = a0; pc0 = ra;
666}
667
668void psxBios_strlen() { // 0x1b
669 char *p = (char *)Ra0;
670 v0 = 0;
2c6a5df8 671 if (a0 == 0)
672 {
673 pc0 = ra;
674 return;
675 }
ef79bbde
P		 676 while (*p++) v0++;
677 pc0 = ra;
678}
679
680void psxBios_index() { // 0x1c
681 char *p = (char *)Ra0;
fcf7ec6c 682 if (a0 == 0)
683 {
684 v0 = 0;
685 pc0 = ra;
686 return;
687 }
688
ef79bbde
P		 689 do {
690 if (*p == a1) {
691 v0 = a0 + (p - (char *)Ra0);
692 pc0 = ra;
693 return;
694 }
695 } while (*p++ != '\0');
696
697 v0 = 0; pc0 = ra;
698}
699
700void psxBios_rindex() { // 0x1d
701 char *p = (char *)Ra0;
702
703 v0 = 0;
fcf7ec6c 704 if (a0 == 0)
705 {
706 pc0 = ra;
707 return;
708 }
ef79bbde
P		 709 do {
710 if (*p == a1)
711 v0 = a0 + (p - (char *)Ra0);
712 } while (*p++ != '\0');
713
714 pc0 = ra;
715}
716
717void psxBios_strchr() { // 0x1e
718 psxBios_index();
719}
720
721void psxBios_strrchr() { // 0x1f
722 psxBios_rindex();
723}
724
725void psxBios_strpbrk() { // 0x20
726 char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
727
728 while ((c = *p1++) != '\0') {
729 for (scanp = p2; (sc = *scanp++) != '\0';) {
730 if (sc == c) {
731 v0 = a0 + (p1 - 1 - (char *)Ra0);
732 pc0 = ra;
733 return;
734 }
735 }
736 }
737
738 // BUG: return a0 instead of NULL if not found
739 v0 = a0; pc0 = ra;
740}
741
742void psxBios_strspn() { // 0x21
743 char *p1, *p2;
744
745 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
746 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
747 if (*p2 == '\0') break;
748 }
749
750 v0 = p1 - (char *)Ra0; pc0 = ra;
751}
752
753void psxBios_strcspn() { // 0x22
754 char *p1, *p2;
755
756 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
757 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
758 if (*p2 != '\0') break;
759 }
760
761 v0 = p1 - (char *)Ra0; pc0 = ra;
762}
763
764void psxBios_strtok() { // 0x23
765 char *pcA0 = (char *)Ra0;
766 char *pcRet = strtok(pcA0, (char *)Ra1);
767 if (pcRet)
768 v0 = a0 + pcRet - pcA0;
769 else
770 v0 = 0;
771 pc0 = ra;
772}
773
774void psxBios_strstr() { // 0x24
775 char *p = (char *)Ra0, *p1, *p2;
776
777 while (*p != '\0') {
778 p1 = p;
779 p2 = (char *)Ra1;
780
781 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
782 p1++; p2++;
783 }
784
785 if (*p2 == '\0') {
786 v0 = a0 + (p - (char *)Ra0);
787 pc0 = ra;
788 return;
789 }
790
791 p++;
792 }
793
794 v0 = 0; pc0 = ra;
795}
796
797void psxBios_toupper() { // 0x25
798 v0 = (s8)(a0 & 0xff);
799 if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
800 pc0 = ra;
801}
802
803void psxBios_tolower() { // 0x26
804 v0 = (s8)(a0 & 0xff);
805 if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
806 pc0 = ra;
807}
808
809void psxBios_bcopy() { // 0x27
810 char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
0148ffb7 811 v0 = a0;
812 if (a0 == 0 || a2 > 0x7FFFFFFF)
813 {
814 pc0 = ra;
815 return;
816 }
5ec7acdf 817 while ((s32)a2-- > 0) *p1++ = *p2++;
0148ffb7 818 a2 = 0;
ef79bbde
P		 819 pc0 = ra;
820}
821
822void psxBios_bzero() { // 0x28
823 char *p = (char *)Ra0;
01724d23 824 v0 = a0;
825 /* Same as memset here (See memset below) */
826 if (a1 > 0x7FFFFFFF || a1 == 0)
827 {
828 v0 = 0;
829 pc0 = ra;
830 return;
831 }
832 else if (a0 == 0)
833 {
834 pc0 = ra;
835 return;
836 }
5ec7acdf 837 while ((s32)a1-- > 0) *p++ = '\0';
01724d23 838 a1 = 0;
ef79bbde
P		 839 pc0 = ra;
840}
841
842void psxBios_bcmp() { // 0x29
843 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
844
845 if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
846
5ec7acdf 847 while ((s32)a2-- > 0) {
ef79bbde
P		 848 if (*p1++ != *p2++) {
849 v0 = *p1 - *p2; // BUG: compare the NEXT byte
850 pc0 = ra;
851 return;
852 }
853 }
854
855 v0 = 0; pc0 = ra;
856}
857
858void psxBios_memcpy() { // 0x2a
859 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
ef1da3dc 860 s32 n=0;
861 v0 = a0;
862 if (a0 == 0 || a2 > 0x7FFFFFFF)
863 {
864 pc0 = ra;
865 return;
866 }
867 while ((s32)a2-- > 0) {
868 n++;
869 *p1++ = *p2++;
870 }
871 a2 = 0;
872 pc0 = ra;
ef79bbde
P		 873}
874
875void psxBios_memset() { // 0x2b
876 char *p = (char *)Ra0;
3f28b64f 877 v0 = a0;
878 if (a2 > 0x7FFFFFFF || a2 == 0)
879 {
880 v0 = 0;
881 pc0 = ra;
882 return;
883 }
884 if (a0 == 0)
885 {
886 pc0 = ra;
887 return;
888 }
5ec7acdf 889 while ((s32)a2-- > 0) *p++ = (char)a1;
5ec7acdf 890 a2 = 0;
ef79bbde
P		 891 v0 = a0; pc0 = ra;
892}
893
894void psxBios_memmove() { // 0x2c
895 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
112dddf5 896 v0 = a0;
897 if (a0 == 0 || a2 > 0x7FFFFFFF)
898 {
899 pc0 = ra;
900 return;
901 }
ef79bbde
P		 902 if (p2 <= p1 && p2 + a2 > p1) {
903 a2++; // BUG: copy one more byte here
904 p1 += a2;
905 p2 += a2;
5ec7acdf 906 while ((s32)a2-- > 0) *--p1 = *--p2;
ef79bbde 907 } else {
5ec7acdf 908 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde 909 }
112dddf5 910 pc0 = ra;
ef79bbde
P		 911}
912
913void psxBios_memcmp() { // 0x2d
914 psxBios_bcmp();
915}
916
917void psxBios_memchr() { // 0x2e
918 char *p = (char *)Ra0;
919
5ec7acdf 920 while ((s32)a2-- > 0) {
ef79bbde
P		 921 if (*p++ != (s8)a1) continue;
922 v0 = a0 + (p - (char *)Ra0 - 1);
923 pc0 = ra;
924 return;
925 }
926
927 v0 = 0; pc0 = ra;
928}
929
930void psxBios_rand() { // 0x2f
931 u32 s = psxMu32(0x9010) * 1103515245 + 12345;
932 v0 = (s >> 16) & 0x7fff;
933 psxMu32ref(0x9010) = SWAPu32(s);
934 pc0 = ra;
935}
936
937void psxBios_srand() { // 0x30
938 psxMu32ref(0x9010) = SWAPu32(a0);
939 pc0 = ra;
940}
941
942static u32 qscmpfunc, qswidth;
943
944static inline int qscmp(char *a, char *b) {
945 u32 sa0 = a0;
946
947 a0 = sa0 + (a - (char *)PSXM(sa0));
948 a1 = sa0 + (b - (char *)PSXM(sa0));
949
950 softCall2(qscmpfunc);
951
952 a0 = sa0;
953 return (s32)v0;
954}
955
956static inline void qexchange(char *i, char *j) {
957 char t;
958 int n = qswidth;
959
960 do {
961 t = *i;
962 *i++ = *j;
963 *j++ = t;
964 } while (--n);
965}
966
967static inline void q3exchange(char *i, char *j, char *k) {
968 char t;
969 int n = qswidth;
970
971 do {
972 t = *i;
973 *i++ = *k;
974 *k++ = *j;
975 *j++ = t;
976 } while (--n);
977}
978
979static void qsort_main(char *a, char *l) {
980 char *i, *j, *lp, *hp;
981 int c;
982 unsigned int n;
983
984start:
985 if ((n = l - a) <= qswidth)
986 return;
987 n = qswidth * (n / (2 * qswidth));
988 hp = lp = a + n;
989 i = a;
990 j = l - qswidth;
991 while (TRUE) {
992 if (i < lp) {
993 if ((c = qscmp(i, lp)) == 0) {
994 qexchange(i, lp -= qswidth);
995 continue;
996 }
997 if (c < 0) {
998 i += qswidth;
999 continue;
1000 }
1001 }
1002
1003loop:
1004 if (j > hp) {
1005 if ((c = qscmp(hp, j)) == 0) {
1006 qexchange(hp += qswidth, j);
1007 goto loop;
1008 }
1009 if (c > 0) {
1010 if (i == lp) {
1011 q3exchange(i, hp += qswidth, j);
1012 i = lp += qswidth;
1013 goto loop;
1014 }
1015 qexchange(i, j);
1016 j -= qswidth;
1017 i += qswidth;
1018 continue;
1019 }
1020 j -= qswidth;
1021 goto loop;
1022 }
1023
1024 if (i == lp) {
1025 if (lp - a >= l - hp) {
1026 qsort_main(hp + qswidth, l);
1027 l = lp;
1028 } else {
1029 qsort_main(a, lp);
1030 a = hp + qswidth;
1031 }
1032 goto start;
1033 }
1034
1035 q3exchange(j, lp -= qswidth, i);
1036 j = hp -= qswidth;
1037 }
1038}
1039
1040void psxBios_qsort() { // 0x31
1041 qswidth = a2;
1042 qscmpfunc = a3;
1043 qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
1044
1045 pc0 = ra;
1046}
1047
1048void psxBios_malloc() { // 0x33
808a13bd 1049 unsigned int *chunk, *newchunk = NULL;
1050 unsigned int dsize = 0, csize, cstat;
ef79bbde
P		 1051 int colflag;
1052#ifdef PSXBIOS_LOG
1053 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
1054#endif
26b964b5 1055 if (!a0 || (!heap_size || !heap_addr)) {
1056 v0 = 0;
1057 pc0 = ra;
1058 return;
1059 }
ef79bbde
P		 1060
1061 // scan through heap and combine free chunks of space
1062 chunk = heap_addr;
1063 colflag = 0;
1064 while(chunk < heap_end) {
1065 // get size and status of actual chunk
1066 csize = ((u32)*chunk) & 0xfffffffc;
1067 cstat = ((u32)*chunk) & 1;
1068
26b964b5 1069 // most probably broken heap descriptor
1070 // this fixes Burning Road
1071 if (*chunk == 0) {
1072 newchunk = chunk;
1073 dsize = ((uptr)heap_end - (uptr)chunk) - 4;
1074 colflag = 1;
1075 break;
1076 }
1077
ef79bbde
P		 1078 // it's a free chunk
1079 if(cstat == 1) {
1080 if(colflag == 0) {
1081 newchunk = chunk;
1082 dsize = csize;
1083 colflag = 1; // let's begin a new collection of free memory
1084 }
1085 else dsize += (csize+4); // add the new size including header
1086 }
1087 // not a free chunk: did we start a collection ?
1088 else {
1089 if(colflag == 1) { // collection is over
1090 colflag = 0;
1091 *newchunk = SWAP32(dsize | 1);
1092 }
1093 }
1094
1095 // next chunk
1096 chunk = (u32*)((uptr)chunk + csize + 4);
1097 }
1098 // if neccessary free memory on end of heap
1099 if (colflag == 1)
1100 *newchunk = SWAP32(dsize | 1);
1101
1102 chunk = heap_addr;
1103 csize = ((u32)*chunk) & 0xfffffffc;
1104 cstat = ((u32)*chunk) & 1;
1105 dsize = (a0 + 3) & 0xfffffffc;
1106
1107 // exit on uninitialized heap
1108 if (chunk == NULL) {
26b964b5 1109 printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
ef79bbde
P		 1110 v0 = 0;
1111 pc0 = ra;
1112 return;
1113 }
1114
1115 // search an unused chunk that is big enough until the end of the heap
26b964b5 1116 while ((dsize > csize || cstat==0) && chunk < heap_end ) {
ef79bbde 1117 chunk = (u32*)((uptr)chunk + csize + 4);
26b964b5 1118
1119 // catch out of memory
1120 if(chunk >= heap_end) {
1121 printf("malloc %x,%x: Out of memory error!\n",
1122 v0, a0);
1123 v0 = 0; pc0 = ra;
1124 return;
1125 }
1126
ef79bbde
P		 1127 csize = ((u32)*chunk) & 0xfffffffc;
1128 cstat = ((u32)*chunk) & 1;
1129 }
1130
ef79bbde
P		 1131 // allocate memory
1132 if(dsize == csize) {
1133 // chunk has same size
1134 *chunk &= 0xfffffffc;
26b964b5 1135 } else if (dsize > csize) {
1136 v0 = 0; pc0 = ra;
1137 return;
1138 } else {
ef79bbde
P		 1139 // split free chunk
1140 *chunk = SWAP32(dsize);
1141 newchunk = (u32*)((uptr)chunk + dsize + 4);
808a13bd 1142 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
ef79bbde
P		 1143 }
1144
1145 // return pointer to allocated memory
26b964b5 1146 v0 = ((uptr)chunk - (uptr)psxM) + 4;
ef79bbde 1147 v0|= 0x80000000;
26b964b5 1148 //printf ("malloc %x,%x\n", v0, a0);
ef79bbde
P		 1149 pc0 = ra;
1150}
1151
1152void psxBios_free() { // 0x34
1153
1154#ifdef PSXBIOS_LOG
1155 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1156#endif
1157
1158 SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1159
ba4ecb8c 1160 if (a0)
1161 *(u32*)(Ra0-4) |= 1; // set chunk to free
ef79bbde
P		 1162 pc0 = ra;
1163}
1164
1165void psxBios_calloc() { // 0x37
02949f79 1166 void *pv0;
ef79bbde
P		 1167#ifdef PSXBIOS_LOG
1168 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1169#endif
1170
1171 a0 = a0 * a1;
1172 psxBios_malloc();
02949f79 1173 pv0 = Rv0;
1174 if (pv0)
1175 memset(pv0, 0, a0);
ef79bbde
P		 1176}
1177
1178void psxBios_realloc() { // 0x38
1179 u32 block = a0;
1180 u32 size = a1;
1181#ifdef PSXBIOS_LOG
1182 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1183#endif
1184
1185 a0 = block;
391b1d5b 1186 /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1187 if (block == 0)
1188 {
1189 psxBios_malloc();
1190 }
1191 /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1192 else if (size == 0)
1193 {
1194 psxBios_free();
1195 }
1196 /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1197 /* Note that it is not quite implemented this way here. */
1198 else
1199 {
1200 psxBios_free();
1201 a0 = size;
1202 psxBios_malloc();
1203 }
ef79bbde
P		 1204}
1205
1206
1207/* InitHeap(void *block , int n) */
1208void psxBios_InitHeap() { // 0x39
1209 unsigned int size;
1210
1211#ifdef PSXBIOS_LOG
1212 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1213#endif
1214
1215 if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1216 else size = a1;
1217
1218 size &= 0xfffffffc;
1219
1220 heap_addr = (u32 *)Ra0;
1221 heap_end = (u32 *)((u8 *)heap_addr + size);
1222 *heap_addr = SWAP32(size | 1);
1223
c979c3ee 1224 SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
ef79bbde
P		 1225
1226 pc0 = ra;
1227}
1228
1229void psxBios_getchar() { //0x3b
1230 v0 = getchar(); pc0 = ra;
1231}
1232
1233void psxBios_printf() { // 0x3f
1234 char tmp[1024];
1235 char tmp2[1024];
1236 u32 save[4];
1237 char *ptmp = tmp;
1238 int n=1, i=0, j;
02949f79 1239 void *psp;
1240
1241 psp = PSXM(sp);
1242 if (psp) {
1243 memcpy(save, psp, 4 * 4);
1244 psxMu32ref(sp) = SWAP32((u32)a0);
1245 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1246 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1247 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1248 }
ef79bbde
P		 1249
1250 while (Ra0[i]) {
1251 switch (Ra0[i]) {
1252 case '%':
1253 j = 0;
1254 tmp2[j++] = '%';
1255_start:
1256 switch (Ra0[++i]) {
1257 case '.':
1258 case 'l':
1259 tmp2[j++] = Ra0[i]; goto _start;
1260 default:
1261 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1262 tmp2[j++] = Ra0[i];
1263 goto _start;
1264 }
1265 break;
1266 }
1267 tmp2[j++] = Ra0[i];
1268 tmp2[j] = 0;
1269
1270 switch (Ra0[i]) {
1271 case 'f': case 'F':
1272 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1273 case 'a': case 'A':
1274 case 'e': case 'E':
1275 case 'g': case 'G':
1276 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1277 case 'p':
888468ff 1278 case 'i': case 'u':
ef79bbde
P		 1279 case 'd': case 'D':
1280 case 'o': case 'O':
1281 case 'x': case 'X':
1282 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1283 case 'c':
1284 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1285 case 's':
1286 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1287 case '%':
1288 *ptmp++ = Ra0[i]; break;
1289 }
1290 i++;
1291 break;
1292 default:
1293 *ptmp++ = Ra0[i++];
1294 }
1295 }
1296 *ptmp = 0;
1297
02949f79 1298 if (psp)
1299 memcpy(psp, save, 4 * 4);
ef79bbde 1300
808a13bd 1301 SysPrintf("%s", tmp);
ef79bbde
P		 1302
1303 pc0 = ra;
1304}
1305
e7e1f572 1306void psxBios_format() { // 0x41
1307 if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1308 {
1309 CreateMcd(Config.Mcd1);
1310 LoadMcd(1, Config.Mcd1);
1311 v0 = 1;
1312 }
1313 else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1314 {
1315 CreateMcd(Config.Mcd2);
1316 LoadMcd(2, Config.Mcd2);
1317 v0 = 1;
1318 }
1319 else
1320 {
1321 v0 = 0;
1322 }
1323 pc0 = ra;
1324}
1325
ef79bbde
P		 1326/*
1327 * long Load(char *name, struct EXEC *header);
1328 */
1329
1330void psxBios_Load() { // 0x42
1331 EXE_HEADER eheader;
02949f79 1332 void *pa1;
ef79bbde
P		 1333
1334#ifdef PSXBIOS_LOG
1335 PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1336#endif
1337
02949f79 1338 pa1 = Ra1;
1339 if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1340 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
ef79bbde
P		 1341 v0 = 1;
1342 } else v0 = 0;
1343
1344 pc0 = ra;
1345}
1346
1347/*
1348 * int Exec(struct EXEC *header , int argc , char **argv);
1349 */
1350
1351void psxBios_Exec() { // 43
1352 EXEC *header = (EXEC*)Ra0;
1353 u32 tmp;
1354
1355#ifdef PSXBIOS_LOG
1356 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1357#endif
1358
1359 header->_sp = sp;
1360 header->_fp = fp;
1361 header->_sp = sp;
1362 header->_gp = gp;
1363 header->ret = ra;
1364 header->base = s0;
1365
1366 if (header->S_addr != 0) {
1367 tmp = header->S_addr + header->s_size;
1368 sp = tmp;
1369 fp = sp;
1370 }
1371
1372 gp = header->gp0;
1373
1374 s0 = a0;
1375
1376 a0 = a1;
1377 a1 = a2;
1378
1379 ra = 0x8000;
1380 pc0 = header->_pc0;
1381}
1382
1383void psxBios_FlushCache() { // 44
1384#ifdef PSXBIOS_LOG
1385 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1386#endif
1387
1388 pc0 = ra;
1389}
1390
1391void psxBios_GPU_dw() { // 0x46
1392 int size;
1393 s32 *ptr;
1394
1395#ifdef PSXBIOS_LOG
1396 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1397#endif
1398
1399 GPU_writeData(0xa0000000);
1400 GPU_writeData((a1<<16)|(a0&0xffff));
1401 GPU_writeData((a3<<16)|(a2&0xffff));
1402 size = (a2*a3+1)/2;
1403 ptr = (s32*)PSXM(Rsp[4]); //that is correct?
1404 do {
1405 GPU_writeData(SWAP32(*ptr));
1406 ptr++;
1407 } while(--size);
1408
1409 pc0 = ra;
1410}
1411
1412void psxBios_mem2vram() { // 0x47
1413 int size;
1414
1415 GPU_writeData(0xa0000000);
1416 GPU_writeData((a1<<16)|(a0&0xffff));
1417 GPU_writeData((a3<<16)|(a2&0xffff));
1418 size = (a2*a3+1)/2;
1419 GPU_writeStatus(0x04000002);
1420 psxHwWrite32(0x1f8010f4,0);
1421 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1422 psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1423 psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1424 psxHwWrite32(0x1f8010a8,0x01000201);
1425
1426 pc0 = ra;
1427}
1428
1429void psxBios_SendGPU() { // 0x48
1430 GPU_writeStatus(a0);
ddbaf678 1431 gpuSyncPluginSR();
ef79bbde
P		 1432 pc0 = ra;
1433}
1434
1435void psxBios_GPU_cw() { // 0x49
1436 GPU_writeData(a0);
1437 pc0 = ra;
1438}
1439
1440void psxBios_GPU_cwb() { // 0x4a
1441 s32 *ptr = (s32*)Ra0;
1442 int size = a1;
1443 while(size--) {
1444 GPU_writeData(SWAP32(*ptr));
1445 ptr++;
1446 }
1447
1448 pc0 = ra;
1449}
1450
1451void psxBios_GPU_SendPackets() { //4b:
1452 GPU_writeStatus(0x04000002);
1453 psxHwWrite32(0x1f8010f4,0);
1454 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1455 psxHwWrite32(0x1f8010a0,a0);
1456 psxHwWrite32(0x1f8010a4,0);
1457 psxHwWrite32(0x1f8010a8,0x010000401);
1458 pc0 = ra;
1459}
1460
1461void psxBios_sys_a0_4c() { // 0x4c GPU relate
1462 psxHwWrite32(0x1f8010a8,0x00000401);
1463 GPU_writeData(0x0400000);
1464 GPU_writeData(0x0200000);
1465 GPU_writeData(0x0100000);
cd1ea245 1466 v0 = 0x1f801814;
ef79bbde
P		 1467 pc0 = ra;
1468}
1469
1470void psxBios_GPU_GetGPUStatus() { // 0x4d
1471 v0 = GPU_readStatus();
1472 pc0 = ra;
1473}
1474
1475#undef s_addr
1476
1477void psxBios_LoadExec() { // 51
1478 EXEC *header = (EXEC*)PSXM(0xf000);
1479 u32 s_addr, s_size;
1480
1481#ifdef PSXBIOS_LOG
1482 PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1483#endif
1484 s_addr = a1; s_size = a2;
1485
1486 a1 = 0xf000;
1487 psxBios_Load();
1488
1489 header->S_addr = s_addr;
1490 header->s_size = s_size;
1491
1492 a0 = 0xf000; a1 = 0; a2 = 0;
1493 psxBios_Exec();
1494}
1495
1496void psxBios__bu_init() { // 70
1497#ifdef PSXBIOS_LOG
1498 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1499#endif
1500
1501 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1502 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1503
1504 pc0 = ra;
1505}
1506
1507void psxBios__96_init() { // 71
1508#ifdef PSXBIOS_LOG
1509 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1510#endif
1511
1512 pc0 = ra;
1513}
1514
1515void psxBios__96_remove() { // 72
1516#ifdef PSXBIOS_LOG
1517 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1518#endif
1519
1520 pc0 = ra;
1521}
1522
1523void psxBios_SetMem() { // 9f
1524 u32 new = psxHu32(0x1060);
1525
1526#ifdef PSXBIOS_LOG
1527 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1528#endif
1529
1530 switch(a0) {
1531 case 2:
1532 psxHu32ref(0x1060) = SWAP32(new);
1533 psxMu32ref(0x060) = a0;
1534 SysPrintf("Change effective memory : %d MBytes\n",a0);
1535 break;
1536
1537 case 8:
1538 psxHu32ref(0x1060) = SWAP32(new | 0x300);
1539 psxMu32ref(0x060) = a0;
1540 SysPrintf("Change effective memory : %d MBytes\n",a0);
1541
1542 default:
1543 SysPrintf("Effective memory must be 2/8 MBytes\n");
1544 break;
1545 }
1546
1547 pc0 = ra;
1548}
1549
1550void psxBios__card_info() { // ab
1551#ifdef PSXBIOS_LOG
1552 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1553#endif
76b81516 1554 u32 ret;
e9fda093 1555 card_active_chan = a0;
1556
76b81516 1557 switch (card_active_chan)
1558 {
1559 case 0x00: case 0x01: case 0x02: case 0x03:
1560 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1561 break;
1562 case 0x10: case 0x11: case 0x12: case 0x13:
1563 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1564 break;
1565 default:
1566#ifdef PSXBIOS_LOG
1567 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1568#endif
1569 ret = 0x11;
1570 break;
1571 }
1572
1573// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
ef79bbde
P		 1574// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1575 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
76b81516 1576 DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
ef79bbde
P		 1577
1578 v0 = 1; pc0 = ra;
1579}
1580
1581void psxBios__card_load() { // ac
1582#ifdef PSXBIOS_LOG
1583 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1584#endif
1585
e9fda093 1586 card_active_chan = a0;
1587
ef79bbde
P		 1588// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1589 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1590
1591 v0 = 1; pc0 = ra;
1592}
1593
1594/* System calls B0 */
1595
1596void psxBios_SetRCnt() { // 02
1597#ifdef PSXBIOS_LOG
1598 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1599#endif
1600
1601 a0&= 0x3;
1602 if (a0 != 3) {
1603 u32 mode=0;
1604
1605 psxRcntWtarget(a0, a1);
1606 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1607 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1608 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1609 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1610 else { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1611
1612 psxRcntWmode(a0, mode);
1613 }
1614 pc0 = ra;
1615}
1616
1617void psxBios_GetRCnt() { // 03
1618#ifdef PSXBIOS_LOG
1619 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1620#endif
1621
1622 a0&= 0x3;
1623 if (a0 != 3) v0 = psxRcntRcount(a0);
1624 else v0 = 0;
1625 pc0 = ra;
1626}
1627
1628void psxBios_StartRCnt() { // 04
1629#ifdef PSXBIOS_LOG
1630 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1631#endif
1632
1633 a0&= 0x3;
1634 if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1635 else psxHu32ref(0x1074)|= SWAPu32(0x1);
1636 v0 = 1; pc0 = ra;
1637}
1638
1639void psxBios_StopRCnt() { // 05
1640#ifdef PSXBIOS_LOG
1641 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1642#endif
1643
1644 a0&= 0x3;
1645 if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1646 else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1647 pc0 = ra;
1648}
1649
1650void psxBios_ResetRCnt() { // 06
1651#ifdef PSXBIOS_LOG
1652 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1653#endif
1654
1655 a0&= 0x3;
1656 if (a0 != 3) {
1657 psxRcntWmode(a0, 0);
1658 psxRcntWtarget(a0, 0);
1659 psxRcntWcount(a0, 0);
1660 }
1661 pc0 = ra;
1662}
1663
1664
1665/* gets ev for use with Event */
1666#define GetEv() \
1667 ev = (a0 >> 24) & 0xf; \
1668 if (ev == 0xf) ev = 0x5; \
1669 ev*= 32; \
1670 ev+= a0&0x1f;
1671
1672/* gets spec for use with Event */
1673#define GetSpec() \
1674 spec = 0; \
1675 switch (a1) { \
1676 case 0x0301: spec = 16; break; \
1677 case 0x0302: spec = 17; break; \
1678 default: \
1679 for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1680 break; \
1681 }
1682
1683void psxBios_DeliverEvent() { // 07
1684 int ev, spec;
1685 int i;
1686
1687 GetEv();
1688 GetSpec();
1689
1690#ifdef PSXBIOS_LOG
1691 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1692#endif
1693
1694 DeliverEvent(ev, spec);
1695
1696 pc0 = ra;
1697}
1698
1699void psxBios_OpenEvent() { // 08
1700 int ev, spec;
1701 int i;
1702
1703 GetEv();
1704 GetSpec();
1705
1706#ifdef PSXBIOS_LOG
1707 PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1708#endif
1709
1710 Event[ev][spec].status = EvStWAIT;
1711 Event[ev][spec].mode = a2;
1712 Event[ev][spec].fhandler = a3;
1713
1714 v0 = ev | (spec << 8);
1715 pc0 = ra;
1716}
1717
1718void psxBios_CloseEvent() { // 09
1719 int ev, spec;
1720
1721 ev = a0 & 0xff;
1722 spec = (a0 >> 8) & 0xff;
1723
1724#ifdef PSXBIOS_LOG
1725 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1726#endif
1727
1728 Event[ev][spec].status = EvStUNUSED;
1729
1730 v0 = 1; pc0 = ra;
1731}
1732
1733void psxBios_WaitEvent() { // 0a
1734 int ev, spec;
1735
1736 ev = a0 & 0xff;
1737 spec = (a0 >> 8) & 0xff;
ef79bbde
P		 1738#ifdef PSXBIOS_LOG
1739 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1740#endif
d95c9dcb 1741 if (Event[ev][spec].status == EvStUNUSED)
1742 {
1743 v0 = 0;
1744 pc0 = ra;
1745 return;
1746 }
ef79bbde 1747
d95c9dcb 1748 if (Event[ev][spec].status == EvStALREADY)
1749 {
1750 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1751 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1752 v0 = 1;
1753 pc0 = ra;
1754 return;
1755 }
ef79bbde 1756
d95c9dcb 1757 v0 = 0;
1758 pc0 = ra;
ef79bbde
P		 1759}
1760
1761void psxBios_TestEvent() { // 0b
1762 int ev, spec;
1763
1764 ev = a0 & 0xff;
1765 spec = (a0 >> 8) & 0xff;
1766
b4ae2532 1767 if (Event[ev][spec].status == EvStALREADY)
1768 {
1769 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1770 v0 = 1;
1771 }
1772 else
1773 {
1774 v0 = 0;
1775 }
ef79bbde
P		 1776
1777#ifdef PSXBIOS_LOG
1778 PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1779#endif
1780
1781 pc0 = ra;
1782}
1783
1784void psxBios_EnableEvent() { // 0c
1785 int ev, spec;
1786
1787 ev = a0 & 0xff;
1788 spec = (a0 >> 8) & 0xff;
1789
1790#ifdef PSXBIOS_LOG
1791 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1792#endif
1793
1794 Event[ev][spec].status = EvStACTIVE;
1795
1796 v0 = 1; pc0 = ra;
1797}
1798
1799void psxBios_DisableEvent() { // 0d
1800 int ev, spec;
1801
1802 ev = a0 & 0xff;
1803 spec = (a0 >> 8) & 0xff;
1804
1805#ifdef PSXBIOS_LOG
1806 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1807#endif
1808
1809 Event[ev][spec].status = EvStWAIT;
1810
1811 v0 = 1; pc0 = ra;
1812}
1813
1814/*
1815 * long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1816 */
1817
1818void psxBios_OpenTh() { // 0e
1819 int th;
1820
1821 for (th=1; th<8; th++)
a66d3058 1822 {
ef79bbde
P		 1823 if (Thread[th].status == 0) break;
1824
a66d3058 1825 }
1826 if (th == 8) {
1827 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1828 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1829#ifdef PSXBIOS_LOG
1830 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1831#endif
1832 v0 = 0xffffffff;
1833 pc0 = ra;
1834 return;
1835 }
ef79bbde
P		 1836#ifdef PSXBIOS_LOG
1837 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1838#endif
1839
1840 Thread[th].status = 1;
1841 Thread[th].func = a0;
1842 Thread[th].reg[29] = a1;
1843 Thread[th].reg[28] = a2;
1844
1845 v0 = th; pc0 = ra;
1846}
1847
1848/*
1849 * int CloseTh(long thread);
1850 */
1851
1852void psxBios_CloseTh() { // 0f
1853 int th = a0 & 0xff;
1854
1855#ifdef PSXBIOS_LOG
1856 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1857#endif
1858
1859 if (Thread[th].status == 0) {
1860 v0 = 0;
1861 } else {
1862 Thread[th].status = 0;
1863 v0 = 1;
1864 }
1865
1866 pc0 = ra;
1867}
1868
1869/*
1870 * int ChangeTh(long thread);
1871 */
1872
1873void psxBios_ChangeTh() { // 10
1874 int th = a0 & 0xff;
1875
1876#ifdef PSXBIOS_LOG
1877// PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1878#endif
1879
1880 if (Thread[th].status == 0 || CurThread == th) {
1881 v0 = 0;
1882
1883 pc0 = ra;
1884 } else {
1885 v0 = 1;
1886
1887 if (Thread[CurThread].status == 2) {
1888 Thread[CurThread].status = 1;
1889 Thread[CurThread].func = ra;
1890 memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1891 }
1892
1893 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1894 pc0 = Thread[th].func;
1895 Thread[th].status = 2;
1896 CurThread = th;
1897 }
1898}
1899
1900void psxBios_InitPAD() { // 0x12
1901#ifdef PSXBIOS_LOG
1902 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1903#endif
1904
1905 pad_buf1 = (char*)Ra0;
1906 pad_buf1len = a1;
1907 pad_buf2 = (char*)Ra2;
1908 pad_buf2len = a3;
1909
1910 v0 = 1; pc0 = ra;
1911}
1912
1913void psxBios_StartPAD() { // 13
1914#ifdef PSXBIOS_LOG
1915 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1916#endif
1917
1918 psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1919 psxRegs.CP0.n.Status |= 0x401;
1920 pc0 = ra;
1921}
1922
1923void psxBios_StopPAD() { // 14
1924#ifdef PSXBIOS_LOG
1925 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1926#endif
8a0245bb 1927 if (pad_buf == 0){
ef79bbde
P		 1928 pad_buf1 = NULL;
1929 pad_buf2 = NULL;
8a0245bb 1930 }
ef79bbde
P		 1931 pc0 = ra;
1932}
1933
1934void psxBios_PAD_init() { // 15
1935#ifdef PSXBIOS_LOG
1936 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1937#endif
a824e83d 1938 if (!(a0 == 0x20000000 || a0 == 0x20000001))
1939 {
1940 v0 = 0;
1941 pc0 = ra;
1942 return;
1943 }
ef79bbde
P		 1944 psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1945 pad_buf = (int *)Ra1;
1946 *pad_buf = -1;
1947 psxRegs.CP0.n.Status |= 0x401;
a824e83d 1948 v0 = 2;
ef79bbde
P		 1949 pc0 = ra;
1950}
1951
1952void psxBios_PAD_dr() { // 16
1953#ifdef PSXBIOS_LOG
1954 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1955#endif
1956
1957 v0 = -1; pc0 = ra;
1958}
1959
1960void psxBios_ReturnFromException() { // 17
1961 LoadRegs();
1962
1963 pc0 = psxRegs.CP0.n.EPC;
1964 if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1965
1966 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1967 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1968}
1969
1970void psxBios_ResetEntryInt() { // 18
1971#ifdef PSXBIOS_LOG
1972 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1973#endif
1974
1975 jmp_int = NULL;
1976 pc0 = ra;
1977}
1978
1979void psxBios_HookEntryInt() { // 19
1980#ifdef PSXBIOS_LOG
1981 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1982#endif
1983
1984 jmp_int = (u32*)Ra0;
1985 pc0 = ra;
1986}
1987
1988void psxBios_UnDeliverEvent() { // 0x20
1989 int ev, spec;
1990 int i;
1991
1992 GetEv();
1993 GetSpec();
1994
1995#ifdef PSXBIOS_LOG
1996 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1997#endif
1998
1999 if (Event[ev][spec].status == EvStALREADY &&
2000 Event[ev][spec].mode == EvMdNOINTR)
2001 Event[ev][spec].status = EvStACTIVE;
2002
2003 pc0 = ra;
2004}
2005
595a136b 2006char ffile[64], *pfile;
2007int nfile;
2008static void buopen(int mcd, u8 *ptr, u8 *cfg)
2009{
2010 int i;
2011 u8 *fptr = ptr;
2012
2013 strcpy(FDesc[1 + mcd].name, Ra0+5);
2014 FDesc[1 + mcd].offset = 0;
2015 FDesc[1 + mcd].mode = a1;
2016
2017 for (i=1; i<16; i++) {
2018 fptr += 128;
2019 if ((*fptr & 0xF0) != 0x50) continue;
2020 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
2021 FDesc[1 + mcd].mcfile = i;
2022 SysPrintf("open %s\n", fptr+0xa);
2023 v0 = 1 + mcd;
2024 break;
2025 }
2026 if (a1 & 0x200 && v0 == -1) { /* FCREAT */
2027 fptr = ptr;
2028 for (i=1; i<16; i++) {
2029 int j, xor, nblk = a1 >> 16;
2030 u8 *pptr, *fptr2;
2031
2032 fptr += 128;
2033 if ((*fptr & 0xF0) != 0xa0) continue;
2034
2035 FDesc[1 + mcd].mcfile = i;
2036 fptr[0] = 0x51;
2037 fptr[4] = 0x00;
2038 fptr[5] = 0x20 * nblk;
2039 fptr[6] = 0x00;
2040 fptr[7] = 0x00;
2041 strcpy(fptr+0xa, FDesc[1 + mcd].name);
2042 pptr = fptr2 = fptr;
2043 for(j=2; j<=nblk; j++) {
2044 int k;
2045 for(i++; i<16; i++) {
2046 fptr2 += 128;
2047
2048 memset(fptr2, 0, 128);
2049 fptr2[0] = j < nblk ? 0x52 : 0x53;
2050 pptr[8] = i - 1;
2051 pptr[9] = 0;
2052 for (k=0, xor=0; k<127; k++) xor^= pptr[k];
2053 pptr[127] = xor;
2054 pptr = fptr2;
2055 break;
2056 }
2057 /* shouldn't this return ENOSPC if i == 16? */
2058 }
2059 pptr[8] = pptr[9] = 0xff;
2060 for (j=0, xor=0; j<127; j++) xor^= pptr[j];
2061 pptr[127] = xor;
2062 SysPrintf("openC %s %d\n", ptr, nblk);
2063 v0 = 1 + mcd;
2064 /* just go ahead and resave them all */
2065 SaveMcd(cfg, ptr, 128, 128 * 15);
2066 break;
2067 }
2068 /* shouldn't this return ENOSPC if i == 16? */
2069 }
ef79bbde
P		 2070}
2071
2072/*
2073 * int open(char *name , int mode);
2074 */
2075
2076void psxBios_open() { // 0x32
2077 int i;
2078 char *ptr;
02949f79 2079 void *pa0 = Ra0;
ef79bbde
P		 2080
2081#ifdef PSXBIOS_LOG
2082 PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
2083#endif
2084
2085 v0 = -1;
2086
02949f79 2087 if (pa0) {
2088 if (!strncmp(pa0, "bu00", 4)) {
595a136b 2089 buopen(1, Mcd1Data, Config.Mcd1);
02949f79 2090 }
ef79bbde 2091
02949f79 2092 if (!strncmp(pa0, "bu10", 4)) {
595a136b 2093 buopen(2, Mcd2Data, Config.Mcd2);
02949f79 2094 }
ef79bbde
P		 2095 }
2096
2097 pc0 = ra;
2098}
2099
2100/*
2101 * int lseek(int fd , int offset , int whence);
2102 */
2103
2104void psxBios_lseek() { // 0x33
2105#ifdef PSXBIOS_LOG
2106 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2107#endif
2108
2109 switch (a2) {
2110 case 0: // SEEK_SET
2111 FDesc[a0].offset = a1;
2112 v0 = a1;
2113// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2114// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2115 break;
2116
2117 case 1: // SEEK_CUR
2118 FDesc[a0].offset+= a1;
2119 v0 = FDesc[a0].offset;
2120 break;
2121 }
2122
2123 pc0 = ra;
2124}
2125
595a136b 2126
ef79bbde
P		 2127/*
2128 * int read(int fd , void *buf , int nbytes);
2129 */
2130
2131void psxBios_read() { // 0x34
2132 char *ptr;
02949f79 2133 void *pa1 = Ra1;
ef79bbde
P		 2134
2135#ifdef PSXBIOS_LOG
2136 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2137#endif
2138
2139 v0 = -1;
2140
02949f79 2141 if (pa1) {
2142 switch (a0) {
595a136b 2143 case 2: buread(pa1, 1, a2); break;
2144 case 3: buread(pa1, 2, a2); break;
02949f79 2145 }
ef79bbde
P		 2146 }
2147
2148 pc0 = ra;
2149}
2150
ef79bbde
P		 2151/*
2152 * int write(int fd , void *buf , int nbytes);
2153 */
2154
2155void psxBios_write() { // 0x35/0x03
2156 char *ptr;
02949f79 2157 void *pa1 = Ra1;
2158
2159#ifdef PSXBIOS_LOG
2160 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2161#endif
2162
2163 v0 = -1;
2164 if (!pa1) {
2165 pc0 = ra;
2166 return;
2167 }
ef79bbde
P		 2168
2169 if (a0 == 1) { // stdout
02949f79 2170 char *ptr = pa1;
ef79bbde 2171
02949f79 2172 v0 = a2;
ef79bbde
P		 2173 while (a2 > 0) {
2174 SysPrintf("%c", *ptr++); a2--;
2175 }
2176 pc0 = ra; return;
2177 }
ef79bbde
P		 2178
2179 switch (a0) {
595a136b 2180 case 2: buwrite(pa1, 1, a2); break;
2181 case 3: buwrite(pa1, 2, a2); break;
ef79bbde
P		 2182 }
2183
2184 pc0 = ra;
2185}
2186
2187/*
2188 * int close(int fd);
2189 */
2190
2191void psxBios_close() { // 0x36
2192#ifdef PSXBIOS_LOG
2193 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2194#endif
2195
2196 v0 = a0;
2197 pc0 = ra;
2198}
2199
2200void psxBios_putchar() { // 3d
2201 SysPrintf("%c", (char)a0);
2202 pc0 = ra;
2203}
2204
2205void psxBios_puts() { // 3e/3f
808a13bd 2206 SysPrintf("%s", Ra0);
ef79bbde
P		 2207 pc0 = ra;
2208}
2209
2210char ffile[64], *pfile;
2211int nfile;
2212
f1514614 2213
2214/* To avoid any issues with different behaviour when using the libc's own strlen instead.
2215 * We want to mimic the PSX's behaviour in this case for bufile. */
2216static size_t strlen_internal(char* p)
2217{
2218 size_t size_of_array = 0;
2219 while (*p++) size_of_array++;
2220 return size_of_array;
2221}
2222
ef79bbde 2223#define bufile(mcd) { \
f1514614 2224 size_t size_of_name = strlen_internal(dir->name); \
ef79bbde
P		 2225 while (nfile < 16) { \
2226 int match=1; \
2227 \
595a136b 2228 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
ef79bbde
P		 2229 nfile++; \
2230 if ((*ptr & 0xF0) != 0x50) continue; \
595a136b 2231 /* Bug link files show up as free block. */ \
2232 if (!ptr[0xa]) continue; \
ef79bbde
P		 2233 ptr+= 0xa; \
2234 if (pfile[0] == 0) { \
f1514614 2235 strncpy(dir->name, ptr, sizeof(dir->name) - 1); \
2236 if (size_of_name < sizeof(dir->name)) dir->name[size_of_name] = '\0'; \
ef79bbde
P		 2237 } else for (i=0; i<20; i++) { \
2238 if (pfile[i] == ptr[i]) { \
595a136b 2239 dir->name[i] = ptr[i]; continue; } \
ef79bbde
P		 2240 if (pfile[i] == '?') { \
2241 dir->name[i] = ptr[i]; continue; } \
2242 if (pfile[i] == '*') { \
2243 strcpy(dir->name+i, ptr+i); break; } \
2244 match = 0; break; \
2245 } \
2246 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
595a136b 2247 if (match == 0) { continue; } \
ef79bbde
P		 2248 dir->size = 8192; \
2249 v0 = _dir; \
2250 break; \
2251 } \
2252}
2253
2254/*
2255 * struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2256 */
2257
2258void psxBios_firstfile() { // 42
2259 struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
02949f79 2260 void *pa0 = Ra0;
ef79bbde
P		 2261 u32 _dir = a1;
2262 char *ptr;
2263 int i;
2264
2265#ifdef PSXBIOS_LOG
2266 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2267#endif
2268
2269 v0 = 0;
2270
02949f79 2271 if (pa0) {
2272 strcpy(ffile, pa0);
2273 pfile = ffile+5;
2274 nfile = 1;
2275 if (!strncmp(pa0, "bu00", 4)) {
857fabea 2276 // firstfile() calls _card_read() internally, so deliver it's event
2277 DeliverEvent(0x11, 0x2);
02949f79 2278 bufile(1);
2279 } else if (!strncmp(pa0, "bu10", 4)) {
857fabea 2280 // firstfile() calls _card_read() internally, so deliver it's event
2281 DeliverEvent(0x11, 0x2);
02949f79 2282 bufile(2);
2283 }
ef79bbde
P		 2284 }
2285
2286 pc0 = ra;
2287}
2288
2289/*
2290 * struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2291 */
2292
2293void psxBios_nextfile() { // 43
2294 struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2295 u32 _dir = a0;
2296 char *ptr;
2297 int i;
2298
2299#ifdef PSXBIOS_LOG
2300 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2301#endif
2302
2303 v0 = 0;
2304
2305 if (!strncmp(ffile, "bu00", 4)) {
2306 bufile(1);
2307 }
2308
2309 if (!strncmp(ffile, "bu10", 4)) {
2310 bufile(2);
2311 }
2312
2313 pc0 = ra;
2314}
2315
2316#define burename(mcd) { \
2317 for (i=1; i<16; i++) { \
2318 int namelen, j, xor = 0; \
2319 ptr = Mcd##mcd##Data + 128 * i; \
2320 if ((*ptr & 0xF0) != 0x50) continue; \
2321 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2322 namelen = strlen(Ra1+5); \
2323 memcpy(ptr+0xa, Ra1+5, namelen); \
2324 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2325 for (j=0; j<127; j++) xor^= ptr[j]; \
2326 ptr[127] = xor; \
2327 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2328 v0 = 1; \
2329 break; \
2330 } \
2331}
2332
2333/*
2334 * int rename(char *old, char *new);
2335 */
2336
2337void psxBios_rename() { // 44
02949f79 2338 void *pa0 = Ra0;
2339 void *pa1 = Ra1;
ef79bbde
P		 2340 char *ptr;
2341 int i;
2342
2343#ifdef PSXBIOS_LOG
2344 PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2345#endif
2346
2347 v0 = 0;
2348
02949f79 2349 if (pa0 && pa1) {
2350 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2351 burename(1);
2352 }
ef79bbde 2353
02949f79 2354 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2355 burename(2);
2356 }
ef79bbde
P		 2357 }
2358
2359 pc0 = ra;
2360}
2361
2362
2363#define budelete(mcd) { \
2364 for (i=1; i<16; i++) { \
2365 ptr = Mcd##mcd##Data + 128 * i; \
2366 if ((*ptr & 0xF0) != 0x50) continue; \
2367 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2368 *ptr = (*ptr & 0xf) | 0xA0; \
2369 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2370 SysPrintf("delete %s\n", ptr+0xa); \
2371 v0 = 1; \
2372 break; \
2373 } \
2374}
2375
2376/*
2377 * int delete(char *name);
2378 */
2379
2380void psxBios_delete() { // 45
02949f79 2381 void *pa0 = Ra0;
ef79bbde
P		 2382 char *ptr;
2383 int i;
2384
2385#ifdef PSXBIOS_LOG
2386 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2387#endif
2388
2389 v0 = 0;
2390
02949f79 2391 if (pa0) {
2392 if (!strncmp(pa0, "bu00", 4)) {
2393 budelete(1);
2394 }
ef79bbde 2395
02949f79 2396 if (!strncmp(pa0, "bu10", 4)) {
2397 budelete(2);
2398 }
ef79bbde
P		 2399 }
2400
2401 pc0 = ra;
2402}
2403
2404void psxBios_InitCARD() { // 4a
2405#ifdef PSXBIOS_LOG
2406 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2407#endif
2408
2409 CardState = 0;
2410
2411 pc0 = ra;
2412}
2413
2414void psxBios_StartCARD() { // 4b
2415#ifdef PSXBIOS_LOG
2416 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2417#endif
2418
2419 if (CardState == 0) CardState = 1;
2420
2421 pc0 = ra;
2422}
2423
2424void psxBios_StopCARD() { // 4c
2425#ifdef PSXBIOS_LOG
2426 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2427#endif
2428
2429 if (CardState == 1) CardState = 0;
2430
2431 pc0 = ra;
2432}
2433
2434void psxBios__card_write() { // 0x4e
02949f79 2435 void *pa2 = Ra2;
ef79bbde
P		 2436 int port;
2437
2438#ifdef PSXBIOS_LOG
2439 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2440#endif
bd48ba5e 2441 /* Function also accepts sector 400h (a bug) */
2442 if (!(a1 <= 0x400))
2443 {
2444 /* Invalid sectors */
2445 v0 = 0; pc0 = ra;
2446 return;
2447 }
e9fda093 2448 card_active_chan = a0;
ef79bbde
P		 2449 port = a0 >> 4;
2450
02949f79 2451 if (pa2) {
2452 if (port == 0) {
2453 memcpy(Mcd1Data + a1 * 128, pa2, 128);
2454 SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2455 } else {
2456 memcpy(Mcd2Data + a1 * 128, pa2, 128);
2457 SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2458 }
ef79bbde
P		 2459 }
2460
2461 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2462// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2463
2464 v0 = 1; pc0 = ra;
2465}
2466
2467void psxBios__card_read() { // 0x4f
02949f79 2468 void *pa2 = Ra2;
ef79bbde
P		 2469 int port;
2470
2471#ifdef PSXBIOS_LOG
2472 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2473#endif
bd48ba5e 2474 /* Function also accepts sector 400h (a bug) */
2475 if (!(a1 <= 0x400))
2476 {
2477 /* Invalid sectors */
2478 v0 = 0; pc0 = ra;
2479 return;
2480 }
e9fda093 2481 card_active_chan = a0;
ef79bbde
P		 2482 port = a0 >> 4;
2483
02949f79 2484 if (pa2) {
2485 if (port == 0) {
2486 memcpy(pa2, Mcd1Data + a1 * 128, 128);
2487 } else {
2488 memcpy(pa2, Mcd2Data + a1 * 128, 128);
2489 }
ef79bbde
P		 2490 }
2491
2492 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2493// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2494
2495 v0 = 1; pc0 = ra;
2496}
2497
2498void psxBios__new_card() { // 0x50
2499#ifdef PSXBIOS_LOG
2500 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2501#endif
2502
2503 pc0 = ra;
2504}
2505
002b2f7d 2506/* According to a user, this allows Final Fantasy Tactics to save/load properly */
2507void psxBios__get_error(void) // 55
2508{
2509 v0 = 0;
2510 pc0 = ra;
2511}
2512
ef79bbde
P		 2513void psxBios_Krom2RawAdd() { // 0x51
2514 int i = 0;
2515
2516 const u32 table_8140[][2] = {
2517 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2518 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2519 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2520 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2521 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2522 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2523 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2524 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2525 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2526 {0xffff, 0}
2527 };
2528
2529 const u32 table_889f[][2] = {
2530 {0x889f, 0x3d68}, {0x8900, 0x40ec}, {0x897f, 0x4fb0}, {0x8a00, 0x56f4},
2531 {0x8a7f, 0x65b8}, {0x8b00, 0x6cfc}, {0x8b7f, 0x7bc0}, {0x8c00, 0x8304},
2532 {0x8c7f, 0x91c8}, {0x8d00, 0x990c}, {0x8d7f, 0xa7d0}, {0x8e00, 0xaf14},
2533 {0x8e7f, 0xbdd8}, {0x8f00, 0xc51c}, {0x8f7f, 0xd3e0}, {0x9000, 0xdb24},
2534 {0x907f, 0xe9e8}, {0x9100, 0xf12c}, {0x917f, 0xfff0}, {0x9200, 0x10734},
2535 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2536 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2537 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2538 {0xffff, 0}
2539 };
2540
2541 if (a0 >= 0x8140 && a0 <= 0x84be) {
2542 while (table_8140[i][0] <= a0) i++;
2543 a0 -= table_8140[i - 1][0];
2544 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2545 } else if (a0 >= 0x889f && a0 <= 0x9872) {
2546 while (table_889f[i][0] <= a0) i++;
2547 a0 -= table_889f[i - 1][0];
2548 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2549 } else {
2550 v0 = 0xffffffff;
2551 }
2552
2553 pc0 = ra;
2554}
2555
2556void psxBios_GetC0Table() { // 56
2557#ifdef PSXBIOS_LOG
2558 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2559#endif
2560
2561 v0 = 0x674; pc0 = ra;
2562}
2563
2564void psxBios_GetB0Table() { // 57
2565#ifdef PSXBIOS_LOG
2566 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2567#endif
2568
2569 v0 = 0x874; pc0 = ra;
2570}
2571
e9fda093 2572void psxBios__card_chan() { // 0x58
2573#ifdef PSXBIOS_LOG
2574 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2575#endif
2576
2577 v0 = card_active_chan;
2578 pc0 = ra;
2579}
2580
ef79bbde
P		 2581void psxBios_ChangeClearPad() { // 5b
2582#ifdef PSXBIOS_LOG
2583 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2584#endif
2585
2586 pc0 = ra;
2587}
2588
2589/* System calls C0 */
2590
2591/*
2592 * int SysEnqIntRP(int index , long *queue);
2593 */
2594
2595void psxBios_SysEnqIntRP() { // 02
2596#ifdef PSXBIOS_LOG
2597 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2598#endif
2599
2600 SysIntRP[a0] = a1;
2601
2602 v0 = 0; pc0 = ra;
2603}
2604
2605/*
2606 * int SysDeqIntRP(int index , long *queue);
2607 */
2608
2609void psxBios_SysDeqIntRP() { // 03
2610#ifdef PSXBIOS_LOG
2611 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2612#endif
2613
2614 SysIntRP[a0] = 0;
2615
2616 v0 = 0; pc0 = ra;
2617}
2618
2619void psxBios_ChangeClearRCnt() { // 0a
2620 u32 *ptr;
2621
2622#ifdef PSXBIOS_LOG
2623 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2624#endif
2625
2626 ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2627 v0 = *ptr;
2628 *ptr = a1;
2629
2630// psxRegs.CP0.n.Status|= 0x404;
2631 pc0 = ra;
2632}
2633
2634void psxBios_dummy() {
2635#ifdef PSXBIOS_LOG
2636 PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2637#endif
2638 pc0 = ra;
2639}
2640
2641void (*biosA0[256])();
2642void (*biosB0[256])();
2643void (*biosC0[256])();
2644
2645#include "sjisfont.h"
2646
2647void psxBiosInit() {
2648 u32 base, size;
2649 u32 *ptr;
2650 int i;
2651 uLongf len;
2652
2653 for(i = 0; i < 256; i++) {
2654 biosA0[i] = NULL;
2655 biosB0[i] = NULL;
2656 biosC0[i] = NULL;
2657 }
2658 biosA0[0x3e] = psxBios_puts;
2659 biosA0[0x3f] = psxBios_printf;
2660
2661 biosB0[0x3d] = psxBios_putchar;
2662 biosB0[0x3f] = psxBios_puts;
2663
2664 if (!Config.HLE) return;
2665
2666 for(i = 0; i < 256; i++) {
2667 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2668 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2669 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2670 }
2671
2672 biosA0[0x00] = psxBios_open;
2673 biosA0[0x01] = psxBios_lseek;
2674 biosA0[0x02] = psxBios_read;
2675 biosA0[0x03] = psxBios_write;
2676 biosA0[0x04] = psxBios_close;
2677 //biosA0[0x05] = psxBios_ioctl;
2678 //biosA0[0x06] = psxBios_exit;
2679 //biosA0[0x07] = psxBios_sys_a0_07;
324cec89 2680 biosA0[0x08] = psxBios_getc;
2681 biosA0[0x09] = psxBios_putc;
ba11675c 2682 biosA0[0x0a] = psxBios_todigit;
ef79bbde
P		 2683 //biosA0[0x0b] = psxBios_atof;
2684 //biosA0[0x0c] = psxBios_strtoul;
2685 //biosA0[0x0d] = psxBios_strtol;
2686 biosA0[0x0e] = psxBios_abs;
2687 biosA0[0x0f] = psxBios_labs;
2688 biosA0[0x10] = psxBios_atoi;
2689 biosA0[0x11] = psxBios_atol;
2690 //biosA0[0x12] = psxBios_atob;
2691 biosA0[0x13] = psxBios_setjmp;
2692 biosA0[0x14] = psxBios_longjmp;
2693 biosA0[0x15] = psxBios_strcat;
2694 biosA0[0x16] = psxBios_strncat;
2695 biosA0[0x17] = psxBios_strcmp;
2696 biosA0[0x18] = psxBios_strncmp;
2697 biosA0[0x19] = psxBios_strcpy;
2698 biosA0[0x1a] = psxBios_strncpy;
2699 biosA0[0x1b] = psxBios_strlen;
2700 biosA0[0x1c] = psxBios_index;
2701 biosA0[0x1d] = psxBios_rindex;
2702 biosA0[0x1e] = psxBios_strchr;
2703 biosA0[0x1f] = psxBios_strrchr;
2704 biosA0[0x20] = psxBios_strpbrk;
2705 biosA0[0x21] = psxBios_strspn;
2706 biosA0[0x22] = psxBios_strcspn;
2707 biosA0[0x23] = psxBios_strtok;
2708 biosA0[0x24] = psxBios_strstr;
2709 biosA0[0x25] = psxBios_toupper;
2710 biosA0[0x26] = psxBios_tolower;
2711 biosA0[0x27] = psxBios_bcopy;
2712 biosA0[0x28] = psxBios_bzero;
2713 biosA0[0x29] = psxBios_bcmp;
2714 biosA0[0x2a] = psxBios_memcpy;
2715 biosA0[0x2b] = psxBios_memset;
2716 biosA0[0x2c] = psxBios_memmove;
2717 biosA0[0x2d] = psxBios_memcmp;
2718 biosA0[0x2e] = psxBios_memchr;
2719 biosA0[0x2f] = psxBios_rand;
2720 biosA0[0x30] = psxBios_srand;
2721 biosA0[0x31] = psxBios_qsort;
2722 //biosA0[0x32] = psxBios_strtod;
2723 biosA0[0x33] = psxBios_malloc;
2724 biosA0[0x34] = psxBios_free;
2725 //biosA0[0x35] = psxBios_lsearch;
2726 //biosA0[0x36] = psxBios_bsearch;
2727 biosA0[0x37] = psxBios_calloc;
2728 biosA0[0x38] = psxBios_realloc;
2729 biosA0[0x39] = psxBios_InitHeap;
2730 //biosA0[0x3a] = psxBios__exit;
2731 biosA0[0x3b] = psxBios_getchar;
2732 biosA0[0x3c] = psxBios_putchar;
2733 //biosA0[0x3d] = psxBios_gets;
2734 //biosA0[0x40] = psxBios_sys_a0_40;
2735 //biosA0[0x41] = psxBios_LoadTest;
2736 biosA0[0x42] = psxBios_Load;
2737 biosA0[0x43] = psxBios_Exec;
2738 biosA0[0x44] = psxBios_FlushCache;
2739 //biosA0[0x45] = psxBios_InstallInterruptHandler;
2740 biosA0[0x46] = psxBios_GPU_dw;
2741 biosA0[0x47] = psxBios_mem2vram;
2742 biosA0[0x48] = psxBios_SendGPU;
2743 biosA0[0x49] = psxBios_GPU_cw;
2744 biosA0[0x4a] = psxBios_GPU_cwb;
2745 biosA0[0x4b] = psxBios_GPU_SendPackets;
2746 biosA0[0x4c] = psxBios_sys_a0_4c;
2747 biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2748 //biosA0[0x4e] = psxBios_GPU_sync;
2749 //biosA0[0x4f] = psxBios_sys_a0_4f;
2750 //biosA0[0x50] = psxBios_sys_a0_50;
2751 biosA0[0x51] = psxBios_LoadExec;
2752 //biosA0[0x52] = psxBios_GetSysSp;
2753 //biosA0[0x53] = psxBios_sys_a0_53;
2754 //biosA0[0x54] = psxBios__96_init_a54;
2755 //biosA0[0x55] = psxBios__bu_init_a55;
2756 //biosA0[0x56] = psxBios__96_remove_a56;
2757 //biosA0[0x57] = psxBios_sys_a0_57;
2758 //biosA0[0x58] = psxBios_sys_a0_58;
2759 //biosA0[0x59] = psxBios_sys_a0_59;
2760 //biosA0[0x5a] = psxBios_sys_a0_5a;
2761 //biosA0[0x5b] = psxBios_dev_tty_init;
2762 //biosA0[0x5c] = psxBios_dev_tty_open;
2763 //biosA0[0x5d] = psxBios_sys_a0_5d;
2764 //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2765 //biosA0[0x5f] = psxBios_dev_cd_open;
2766 //biosA0[0x60] = psxBios_dev_cd_read;
2767 //biosA0[0x61] = psxBios_dev_cd_close;
2768 //biosA0[0x62] = psxBios_dev_cd_firstfile;
2769 //biosA0[0x63] = psxBios_dev_cd_nextfile;
2770 //biosA0[0x64] = psxBios_dev_cd_chdir;
2771 //biosA0[0x65] = psxBios_dev_card_open;
2772 //biosA0[0x66] = psxBios_dev_card_read;
2773 //biosA0[0x67] = psxBios_dev_card_write;
2774 //biosA0[0x68] = psxBios_dev_card_close;
2775 //biosA0[0x69] = psxBios_dev_card_firstfile;
2776 //biosA0[0x6a] = psxBios_dev_card_nextfile;
2777 //biosA0[0x6b] = psxBios_dev_card_erase;
2778 //biosA0[0x6c] = psxBios_dev_card_undelete;
2779 //biosA0[0x6d] = psxBios_dev_card_format;
2780 //biosA0[0x6e] = psxBios_dev_card_rename;
2781 //biosA0[0x6f] = psxBios_dev_card_6f;
2782 biosA0[0x70] = psxBios__bu_init;
2783 biosA0[0x71] = psxBios__96_init;
2784 biosA0[0x72] = psxBios__96_remove;
2785 //biosA0[0x73] = psxBios_sys_a0_73;
2786 //biosA0[0x74] = psxBios_sys_a0_74;
2787 //biosA0[0x75] = psxBios_sys_a0_75;
2788 //biosA0[0x76] = psxBios_sys_a0_76;
2789 //biosA0[0x77] = psxBios_sys_a0_77;
2790 //biosA0[0x78] = psxBios__96_CdSeekL;
2791 //biosA0[0x79] = psxBios_sys_a0_79;
2792 //biosA0[0x7a] = psxBios_sys_a0_7a;
2793 //biosA0[0x7b] = psxBios_sys_a0_7b;
2794 //biosA0[0x7c] = psxBios__96_CdGetStatus;
2795 //biosA0[0x7d] = psxBios_sys_a0_7d;
2796 //biosA0[0x7e] = psxBios__96_CdRead;
2797 //biosA0[0x7f] = psxBios_sys_a0_7f;
2798 //biosA0[0x80] = psxBios_sys_a0_80;
2799 //biosA0[0x81] = psxBios_sys_a0_81;
2800 //biosA0[0x82] = psxBios_sys_a0_82;
2801 //biosA0[0x83] = psxBios_sys_a0_83;
2802 //biosA0[0x84] = psxBios_sys_a0_84;
2803 //biosA0[0x85] = psxBios__96_CdStop;
2804 //biosA0[0x86] = psxBios_sys_a0_86;
2805 //biosA0[0x87] = psxBios_sys_a0_87;
2806 //biosA0[0x88] = psxBios_sys_a0_88;
2807 //biosA0[0x89] = psxBios_sys_a0_89;
2808 //biosA0[0x8a] = psxBios_sys_a0_8a;
2809 //biosA0[0x8b] = psxBios_sys_a0_8b;
2810 //biosA0[0x8c] = psxBios_sys_a0_8c;
2811 //biosA0[0x8d] = psxBios_sys_a0_8d;
2812 //biosA0[0x8e] = psxBios_sys_a0_8e;
2813 //biosA0[0x8f] = psxBios_sys_a0_8f;
2814 //biosA0[0x90] = psxBios_sys_a0_90;
2815 //biosA0[0x91] = psxBios_sys_a0_91;
2816 //biosA0[0x92] = psxBios_sys_a0_92;
2817 //biosA0[0x93] = psxBios_sys_a0_93;
2818 //biosA0[0x94] = psxBios_sys_a0_94;
2819 //biosA0[0x95] = psxBios_sys_a0_95;
2820 //biosA0[0x96] = psxBios_AddCDROMDevice;
2821 //biosA0[0x97] = psxBios_AddMemCardDevide;
2822 //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2823 //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2824 //biosA0[0x9a] = psxBios_sys_a0_9a;
2825 //biosA0[0x9b] = psxBios_sys_a0_9b;
2826 //biosA0[0x9c] = psxBios_SetConf;
2827 //biosA0[0x9d] = psxBios_GetConf;
2828 //biosA0[0x9e] = psxBios_sys_a0_9e;
2829 biosA0[0x9f] = psxBios_SetMem;
2830 //biosA0[0xa0] = psxBios__boot;
2831 //biosA0[0xa1] = psxBios_SystemError;
2832 //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2833 //biosA0[0xa3] = psxBios_DequeueCdIntr;
2834 //biosA0[0xa4] = psxBios_sys_a0_a4;
2835 //biosA0[0xa5] = psxBios_ReadSector;
2836 //biosA0[0xa6] = psxBios_get_cd_status;
2837 //biosA0[0xa7] = psxBios_bufs_cb_0;
2838 //biosA0[0xa8] = psxBios_bufs_cb_1;
2839 //biosA0[0xa9] = psxBios_bufs_cb_2;
2840 //biosA0[0xaa] = psxBios_bufs_cb_3;
2841 biosA0[0xab] = psxBios__card_info;
2842 biosA0[0xac] = psxBios__card_load;
2843 //biosA0[0axd] = psxBios__card_auto;
2844 //biosA0[0xae] = psxBios_bufs_cd_4;
2845 //biosA0[0xaf] = psxBios_sys_a0_af;
2846 //biosA0[0xb0] = psxBios_sys_a0_b0;
2847 //biosA0[0xb1] = psxBios_sys_a0_b1;
2848 //biosA0[0xb2] = psxBios_do_a_long_jmp
2849 //biosA0[0xb3] = psxBios_sys_a0_b3;
2850 //biosA0[0xb4] = psxBios_sub_function;
2851//*******************B0 CALLS****************************
2852 //biosB0[0x00] = psxBios_SysMalloc;
2853 //biosB0[0x01] = psxBios_sys_b0_01;
2854 biosB0[0x02] = psxBios_SetRCnt;
2855 biosB0[0x03] = psxBios_GetRCnt;
2856 biosB0[0x04] = psxBios_StartRCnt;
2857 biosB0[0x05] = psxBios_StopRCnt;
2858 biosB0[0x06] = psxBios_ResetRCnt;
2859 biosB0[0x07] = psxBios_DeliverEvent;
2860 biosB0[0x08] = psxBios_OpenEvent;
2861 biosB0[0x09] = psxBios_CloseEvent;
2862 biosB0[0x0a] = psxBios_WaitEvent;
2863 biosB0[0x0b] = psxBios_TestEvent;
2864 biosB0[0x0c] = psxBios_EnableEvent;
2865 biosB0[0x0d] = psxBios_DisableEvent;
2866 biosB0[0x0e] = psxBios_OpenTh;
2867 biosB0[0x0f] = psxBios_CloseTh;
2868 biosB0[0x10] = psxBios_ChangeTh;
2869 //biosB0[0x11] = psxBios_psxBios_b0_11;
2870 biosB0[0x12] = psxBios_InitPAD;
2871 biosB0[0x13] = psxBios_StartPAD;
2872 biosB0[0x14] = psxBios_StopPAD;
2873 biosB0[0x15] = psxBios_PAD_init;
2874 biosB0[0x16] = psxBios_PAD_dr;
2875 biosB0[0x17] = psxBios_ReturnFromException;
2876 biosB0[0x18] = psxBios_ResetEntryInt;
2877 biosB0[0x19] = psxBios_HookEntryInt;
2878 //biosB0[0x1a] = psxBios_sys_b0_1a;
2879 //biosB0[0x1b] = psxBios_sys_b0_1b;
2880 //biosB0[0x1c] = psxBios_sys_b0_1c;
2881 //biosB0[0x1d] = psxBios_sys_b0_1d;
2882 //biosB0[0x1e] = psxBios_sys_b0_1e;
2883 //biosB0[0x1f] = psxBios_sys_b0_1f;
2884 biosB0[0x20] = psxBios_UnDeliverEvent;
2885 //biosB0[0x21] = psxBios_sys_b0_21;
2886 //biosB0[0x22] = psxBios_sys_b0_22;
2887 //biosB0[0x23] = psxBios_sys_b0_23;
2888 //biosB0[0x24] = psxBios_sys_b0_24;
2889 //biosB0[0x25] = psxBios_sys_b0_25;
2890 //biosB0[0x26] = psxBios_sys_b0_26;
2891 //biosB0[0x27] = psxBios_sys_b0_27;
2892 //biosB0[0x28] = psxBios_sys_b0_28;
2893 //biosB0[0x29] = psxBios_sys_b0_29;
2894 //biosB0[0x2a] = psxBios_sys_b0_2a;
2895 //biosB0[0x2b] = psxBios_sys_b0_2b;
2896 //biosB0[0x2c] = psxBios_sys_b0_2c;
2897 //biosB0[0x2d] = psxBios_sys_b0_2d;
2898 //biosB0[0x2e] = psxBios_sys_b0_2e;
2899 //biosB0[0x2f] = psxBios_sys_b0_2f;
2900 //biosB0[0x30] = psxBios_sys_b0_30;
2901 //biosB0[0x31] = psxBios_sys_b0_31;
2902 biosB0[0x32] = psxBios_open;
2903 biosB0[0x33] = psxBios_lseek;
2904 biosB0[0x34] = psxBios_read;
2905 biosB0[0x35] = psxBios_write;
2906 biosB0[0x36] = psxBios_close;
2907 //biosB0[0x37] = psxBios_ioctl;
2908 //biosB0[0x38] = psxBios_exit;
2909 //biosB0[0x39] = psxBios_sys_b0_39;
2910 //biosB0[0x3a] = psxBios_getc;
2911 //biosB0[0x3b] = psxBios_putc;
2912 biosB0[0x3c] = psxBios_getchar;
2913 //biosB0[0x3e] = psxBios_gets;
2914 //biosB0[0x40] = psxBios_cd;
e7e1f572 2915 biosB0[0x41] = psxBios_format;
ef79bbde
P		 2916 biosB0[0x42] = psxBios_firstfile;
2917 biosB0[0x43] = psxBios_nextfile;
2918 biosB0[0x44] = psxBios_rename;
2919 biosB0[0x45] = psxBios_delete;
2920 //biosB0[0x46] = psxBios_undelete;
2921 //biosB0[0x47] = psxBios_AddDevice;
2922 //biosB0[0x48] = psxBios_RemoteDevice;
2923 //biosB0[0x49] = psxBios_PrintInstalledDevices;
2924 biosB0[0x4a] = psxBios_InitCARD;
2925 biosB0[0x4b] = psxBios_StartCARD;
2926 biosB0[0x4c] = psxBios_StopCARD;
2927 //biosB0[0x4d] = psxBios_sys_b0_4d;
2928 biosB0[0x4e] = psxBios__card_write;
2929 biosB0[0x4f] = psxBios__card_read;
2930 biosB0[0x50] = psxBios__new_card;
2931 biosB0[0x51] = psxBios_Krom2RawAdd;
2932 //biosB0[0x52] = psxBios_sys_b0_52;
2933 //biosB0[0x53] = psxBios_sys_b0_53;
2934 //biosB0[0x54] = psxBios__get_errno;
002b2f7d 2935 biosB0[0x55] = psxBios__get_error;
ef79bbde
P		 2936 biosB0[0x56] = psxBios_GetC0Table;
2937 biosB0[0x57] = psxBios_GetB0Table;
e9fda093 2938 biosB0[0x58] = psxBios__card_chan;
ef79bbde
P		 2939 //biosB0[0x59] = psxBios_sys_b0_59;
2940 //biosB0[0x5a] = psxBios_sys_b0_5a;
2941 biosB0[0x5b] = psxBios_ChangeClearPad;
2942 //biosB0[0x5c] = psxBios__card_status;
2943 //biosB0[0x5d] = psxBios__card_wait;
2944//*******************C0 CALLS****************************
2945 //biosC0[0x00] = psxBios_InitRCnt;
2946 //biosC0[0x01] = psxBios_InitException;
2947 biosC0[0x02] = psxBios_SysEnqIntRP;
2948 biosC0[0x03] = psxBios_SysDeqIntRP;
2949 //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2950 //biosC0[0x05] = psxBios_get_free_TCB_slot;
2951 //biosC0[0x06] = psxBios_ExceptionHandler;
2952 //biosC0[0x07] = psxBios_InstallExeptionHandler;
2953 //biosC0[0x08] = psxBios_SysInitMemory;
2954 //biosC0[0x09] = psxBios_SysInitKMem;
2955 biosC0[0x0a] = psxBios_ChangeClearRCnt;
2956 //biosC0[0x0b] = psxBios_SystemError;
2957 //biosC0[0x0c] = psxBios_InitDefInt;
2958 //biosC0[0x0d] = psxBios_sys_c0_0d;
2959 //biosC0[0x0e] = psxBios_sys_c0_0e;
2960 //biosC0[0x0f] = psxBios_sys_c0_0f;
2961 //biosC0[0x10] = psxBios_sys_c0_10;
2962 //biosC0[0x11] = psxBios_sys_c0_11;
2963 //biosC0[0x12] = psxBios_InstallDevices;
2964 //biosC0[0x13] = psxBios_FlushStfInOutPut;
2965 //biosC0[0x14] = psxBios_sys_c0_14;
2966 //biosC0[0x15] = psxBios__cdevinput;
2967 //biosC0[0x16] = psxBios__cdevscan;
2968 //biosC0[0x17] = psxBios__circgetc;
2969 //biosC0[0x18] = psxBios__circputc;
2970 //biosC0[0x19] = psxBios_ioabort;
2971 //biosC0[0x1a] = psxBios_sys_c0_1a
2972 //biosC0[0x1b] = psxBios_KernelRedirect;
2973 //biosC0[0x1c] = psxBios_PatchAOTable;
2974//************** THE END ***************************************
2975/**/
2976 base = 0x1000;
2977 size = sizeof(EvCB) * 32;
2978 Event = (void *)&psxR[base]; base += size * 6;
2979 memset(Event, 0, size * 6);
2980 HwEV = Event;
2981 EvEV = Event + 32;
2982 RcEV = Event + 32 * 2;
2983 UeEV = Event + 32 * 3;
2984 SwEV = Event + 32 * 4;
2985 ThEV = Event + 32 * 5;
2986
2987 ptr = (u32 *)&psxM[0x0874]; // b0 table
2988 ptr[0] = SWAPu32(0x4c54 - 0x884);
2989
2990 ptr = (u32 *)&psxM[0x0674]; // c0 table
2991 ptr[6] = SWAPu32(0xc80);
2992
2993 memset(SysIntRP, 0, sizeof(SysIntRP));
2994 memset(Thread, 0, sizeof(Thread));
2995 Thread[0].status = 2; // main thread
2996
c62b43c9 2997 jmp_int = NULL;
2998 pad_buf = NULL;
2999 pad_buf1 = NULL;
3000 pad_buf2 = NULL;
3001 pad_buf1len = pad_buf2len = 0;
3002 heap_addr = NULL;
3003 heap_end = NULL;
26b964b5 3004 heap_size = 0;
c62b43c9 3005 CardState = -1;
3006 CurThread = 0;
3007 memset(FDesc, 0, sizeof(FDesc));
3008
ef79bbde
P		 3009 psxMu32ref(0x0150) = SWAPu32(0x160);
3010 psxMu32ref(0x0154) = SWAPu32(0x320);
3011 psxMu32ref(0x0160) = SWAPu32(0x248);
3012 strcpy((char *)&psxM[0x248], "bu");
3013/* psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
3014 psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
3015 psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
3016 psxMu32ref(0x09e0) = SWAPu32(0x43d0);
3017 psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
3018*/
3019 // opcode HLE
3020 psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
3021 psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
3022 psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
3023 psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
3024 psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
3025 psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
3026 psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
3027 psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
3028 psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
3029 psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
3030
3031 // initial stack pointer for BIOS interrupt
3032 psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
3033
3034 // initial RNG seed
3035 psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
3036
3037 // fonts
3038 len = 0x80000 - 0x66000;
3039 uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
3040 len = 0x80000 - 0x69d68;
3041 uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
3042
3043 // memory size 2 MB
3044 psxHu32ref(0x1060) = SWAPu32(0x00000b88);
3045
3046 hleSoftCall = FALSE;
3047}
3048
3049void psxBiosShutdown() {
3050}
3051
3052#define psxBios_PADpoll(pad) { \
3053 PAD##pad##_startPoll(pad); \
3054 pad_buf##pad[0] = 0; \
3055 pad_buf##pad[1] = PAD##pad##_poll(0x42); \
3056 if (!(pad_buf##pad[1] & 0x0f)) { \
3057 bufcount = 32; \
3058 } else { \
3059 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
3060 } \
3061 PAD##pad##_poll(0); \
3062 i = 2; \
3063 while (bufcount--) { \
3064 pad_buf##pad[i++] = PAD##pad##_poll(0); \
3065 } \
3066}
3067
3068void biosInterrupt() {
3069 int i, bufcount;
3070
3071// if (psxHu32(0x1070) & 0x1) { // Vsync
3072 if (pad_buf != NULL) {
3073 u32 *buf = (u32*)pad_buf;
3074
3075 if (!Config.UseNet) {
3076 PAD1_startPoll(1);
3077 if (PAD1_poll(0x42) == 0x23) {
3078 PAD1_poll(0);
3079 *buf = PAD1_poll(0) << 8;
3080 *buf |= PAD1_poll(0);
3081 PAD1_poll(0);
3082 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
3083 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
3084 } else {
3085 PAD1_poll(0);
3086 *buf = PAD1_poll(0) << 8;
3087 *buf|= PAD1_poll(0);
3088 }
3089
3090 PAD2_startPoll(2);
3091 if (PAD2_poll(0x42) == 0x23) {
3092 PAD2_poll(0);
3093 *buf |= PAD2_poll(0) << 24;
3094 *buf |= PAD2_poll(0) << 16;
3095 PAD2_poll(0);
3096 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
3097 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
3098 } else {
3099 PAD2_poll(0);
3100 *buf |= PAD2_poll(0) << 24;
3101 *buf |= PAD2_poll(0) << 16;
3102 }
3103 } else {
3104 u16 data;
3105
3106 PAD1_startPoll(1);
3107 PAD1_poll(0x42);
3108 PAD1_poll(0);
3109 data = PAD1_poll(0) << 8;
3110 data |= PAD1_poll(0);
3111
3112 if (NET_sendPadData(&data, 2) == -1)
3113 netError();
3114
3115 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
3116 netError();
3117 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3118 netError();
3119 }
3120 }
3121 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3122 psxBios_PADpoll(1);
3123
3124 if (NET_sendPadData(pad_buf1, i) == -1)
3125 netError();
3126
3127 if (NET_recvPadData(pad_buf1, 1) == -1)
3128 netError();
3129 if (NET_recvPadData(pad_buf2, 2) == -1)
3130 netError();
3131 } else {
3132 if (pad_buf1) {
3133 psxBios_PADpoll(1);
3134 }
3135
3136 if (pad_buf2) {
3137 psxBios_PADpoll(2);
3138 }
3139 }
3140
3141 if (psxHu32(0x1070) & 0x1) { // Vsync
3142 if (RcEV[3][1].status == EvStACTIVE) {
3143 softCall(RcEV[3][1].fhandler);
3144// hwWrite32(0x1f801070, ~(1));
3145 }
3146 }
3147
3148 if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3149 int i;
3150
3151 for (i = 0; i < 3; i++) {
3152 if (psxHu32(0x1070) & (1 << (i + 4))) {
3153 if (RcEV[i][1].status == EvStACTIVE) {
3154 softCall(RcEV[i][1].fhandler);
3155 }
3156 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3157 }
3158 }
3159 }
3160}
3161
3162void psxBiosException() {
3163 int i;
3164
3165 switch (psxRegs.CP0.n.Cause & 0x3c) {
3166 case 0x00: // Interrupt
3167#ifdef PSXCPU_LOG
3168// PSXCPU_LOG("interrupt\n");
3169#endif
3170 SaveRegs();
3171
3172 sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3173
3174 biosInterrupt();
3175
3176 for (i = 0; i < 8; i++) {
3177 if (SysIntRP[i]) {
3178 u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3179
3180 s0 = queue[2];
3181 softCall(queue[1]);
3182 }
3183 }
3184
3185 if (jmp_int != NULL) {
3186 int i;
3187
3188 psxHwWrite32(0x1f801070, 0xffffffff);
3189
3190 ra = jmp_int[0];
3191 sp = jmp_int[1];
3192 fp = jmp_int[2];
3193 for (i = 0; i < 8; i++) // s0-s7
3194 psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3195 gp = jmp_int[11];
3196
3197 v0 = 1;
3198 pc0 = ra;
3199 return;
3200 }
3201 psxHwWrite16(0x1f801070, 0);
3202 break;
3203
3204 case 0x20: // Syscall
3205#ifdef PSXCPU_LOG
3206 PSXCPU_LOG("syscall exp %x\n", a0);
3207#endif
3208 switch (a0) {
3209 case 1: // EnterCritical - disable irq's
79dad1b3 3210 /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3211 v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3212 psxRegs.CP0.n.Status &= ~0x404;
ef79bbde
P		 3213 break;
3214
3215 case 2: // ExitCritical - enable irq's
3216 psxRegs.CP0.n.Status |= 0x404;
3217 break;
a946d159 3218 /* Normally this should cover SYS(00h, SYS(04h but they don't do anything relevant so... */
3219 default:
3220 break;
ef79bbde
P		 3221 }
3222 pc0 = psxRegs.CP0.n.EPC + 4;
3223
3224 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3225 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3226 return;
3227
3228 default:
3229#ifdef PSXCPU_LOG
3230 PSXCPU_LOG("unknown bios exception!\n");
3231#endif
3232 break;
3233 }
3234
3235 pc0 = psxRegs.CP0.n.EPC;
3236 if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3237
3238 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3239 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3240}
3241
3242#define bfreeze(ptr, size) { \
3243 if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3244 if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3245 base += size; \
3246}
3247
3248#define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3249#define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3250
3251#define bfreezepsxMptr(ptr, type) { \
3252 if (Mode == 1) { \
3253 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3254 else psxRu32ref(base) = 0; \
3255 } else { \
3256 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3257 else (ptr) = NULL; \
3258 } \
3259 base += sizeof(u32); \
3260}
3261
3262void psxBiosFreeze(int Mode) {
3263 u32 base = 0x40000;
3264
3265 bfreezepsxMptr(jmp_int, u32);
3266 bfreezepsxMptr(pad_buf, int);
3267 bfreezepsxMptr(pad_buf1, char);
3268 bfreezepsxMptr(pad_buf2, char);
3269 bfreezepsxMptr(heap_addr, u32);
3270 bfreezel(&pad_buf1len);
3271 bfreezel(&pad_buf2len);
3272 bfreezes(regs);
3273 bfreezes(SysIntRP);
3274 bfreezel(&CardState);
3275 bfreezes(Thread);
3276 bfreezel(&CurThread);
3277 bfreezes(FDesc);
e9fda093 3278 bfreezel(&card_active_chan);
ef79bbde 3279}
ARM optimized PCSX fork