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Only PCSX4ALL uses ResetIoCycle. Remove it for now.
[pcsx_rearmed.git] / libpcsxcore / psxbios.c
CommitLineData
ef79bbde
P		 1/***************************************************************************
2 * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team *
3 * *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
8 * *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
13 * *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. *
18 ***************************************************************************/
19
20/*
21 * Internal simulated HLE BIOS.
22 */
23
24// TODO: implement all system calls, count the exact CPU cycles of system calls.
25
26#include "psxbios.h"
27#include "psxhw.h"
ddbaf678 28#include "gpu.h"
496d88d4 29#include <zlib.h>
ef79bbde 30
452b85f9 31#undef SysPrintf
32#define SysPrintf if (Config.PsxOut) printf
33
ef79bbde
P		 34char *biosA0n[256] = {
35// 0x00
36 "open", "lseek", "read", "write",
37 "close", "ioctl", "exit", "sys_a0_07",
38 "getc", "putc", "todigit", "atof",
39 "strtoul", "strtol", "abs", "labs",
40// 0x10
41 "atoi", "atol", "atob", "setjmp",
42 "longjmp", "strcat", "strncat", "strcmp",
43 "strncmp", "strcpy", "strncpy", "strlen",
44 "index", "rindex", "strchr", "strrchr",
45// 0x20
46 "strpbrk", "strspn", "strcspn", "strtok",
47 "strstr", "toupper", "tolower", "bcopy",
48 "bzero", "bcmp", "memcpy", "memset",
49 "memmove", "memcmp", "memchr", "rand",
50// 0x30
51 "srand", "qsort", "strtod", "malloc",
52 "free", "lsearch", "bsearch", "calloc",
53 "realloc", "InitHeap", "_exit", "getchar",
54 "putchar", "gets", "puts", "printf",
55// 0x40
56 "sys_a0_40", "LoadTest", "Load", "Exec",
57 "FlushCache", "InstallInterruptHandler", "GPU_dw", "mem2vram",
58 "SendGPUStatus", "GPU_cw", "GPU_cwb", "SendPackets",
59 "sys_a0_4c", "GetGPUStatus", "GPU_sync", "sys_a0_4f",
60// 0x50
61 "sys_a0_50", "LoadExec", "GetSysSp", "sys_a0_53",
62 "_96_init()", "_bu_init()", "_96_remove()", "sys_a0_57",
63 "sys_a0_58", "sys_a0_59", "sys_a0_5a", "dev_tty_init",
64 "dev_tty_open", "sys_a0_5d", "dev_tty_ioctl","dev_cd_open",
65// 0x60
66 "dev_cd_read", "dev_cd_close", "dev_cd_firstfile", "dev_cd_nextfile",
67 "dev_cd_chdir", "dev_card_open", "dev_card_read", "dev_card_write",
68 "dev_card_close", "dev_card_firstfile", "dev_card_nextfile","dev_card_erase",
69 "dev_card_undelete","dev_card_format", "dev_card_rename", "dev_card_6f",
70// 0x70
71 "_bu_init", "_96_init", "_96_remove", "sys_a0_73",
72 "sys_a0_74", "sys_a0_75", "sys_a0_76", "sys_a0_77",
73 "_96_CdSeekL", "sys_a0_79", "sys_a0_7a", "sys_a0_7b",
74 "_96_CdGetStatus", "sys_a0_7d", "_96_CdRead", "sys_a0_7f",
75// 0x80
76 "sys_a0_80", "sys_a0_81", "sys_a0_82", "sys_a0_83",
77 "sys_a0_84", "_96_CdStop", "sys_a0_86", "sys_a0_87",
78 "sys_a0_88", "sys_a0_89", "sys_a0_8a", "sys_a0_8b",
79 "sys_a0_8c", "sys_a0_8d", "sys_a0_8e", "sys_a0_8f",
80// 0x90
81 "sys_a0_90", "sys_a0_91", "sys_a0_92", "sys_a0_93",
82 "sys_a0_94", "sys_a0_95", "AddCDROMDevice", "AddMemCardDevide",
83 "DisableKernelIORedirection", "EnableKernelIORedirection", "sys_a0_9a", "sys_a0_9b",
84 "SetConf", "GetConf", "sys_a0_9e", "SetMem",
85// 0xa0
86 "_boot", "SystemError", "EnqueueCdIntr", "DequeueCdIntr",
87 "sys_a0_a4", "ReadSector", "get_cd_status", "bufs_cb_0",
88 "bufs_cb_1", "bufs_cb_2", "bufs_cb_3", "_card_info",
89 "_card_load", "_card_auto", "bufs_cd_4", "sys_a0_af",
90// 0xb0
91 "sys_a0_b0", "sys_a0_b1", "do_a_long_jmp", "sys_a0_b3",
92 "?? sub_function",
93};
94
95char *biosB0n[256] = {
96// 0x00
97 "SysMalloc", "sys_b0_01", "sys_b0_02", "sys_b0_03",
98 "sys_b0_04", "sys_b0_05", "sys_b0_06", "DeliverEvent",
99 "OpenEvent", "CloseEvent", "WaitEvent", "TestEvent",
100 "EnableEvent", "DisableEvent", "OpenTh", "CloseTh",
101// 0x10
102 "ChangeTh", "sys_b0_11", "InitPAD", "StartPAD",
103 "StopPAD", "PAD_init", "PAD_dr", "ReturnFromExecption",
104 "ResetEntryInt", "HookEntryInt", "sys_b0_1a", "sys_b0_1b",
105 "sys_b0_1c", "sys_b0_1d", "sys_b0_1e", "sys_b0_1f",
106// 0x20
107 "UnDeliverEvent", "sys_b0_21", "sys_b0_22", "sys_b0_23",
108 "sys_b0_24", "sys_b0_25", "sys_b0_26", "sys_b0_27",
109 "sys_b0_28", "sys_b0_29", "sys_b0_2a", "sys_b0_2b",
110 "sys_b0_2c", "sys_b0_2d", "sys_b0_2e", "sys_b0_2f",
111// 0x30
112 "sys_b0_30", "sys_b0_31", "open", "lseek",
113 "read", "write", "close", "ioctl",
114 "exit", "sys_b0_39", "getc", "putc",
115 "getchar", "putchar", "gets", "puts",
116// 0x40
117 "cd", "format", "firstfile", "nextfile",
118 "rename", "delete", "undelete", "AddDevice",
119 "RemoteDevice", "PrintInstalledDevices", "InitCARD", "StartCARD",
120 "StopCARD", "sys_b0_4d", "_card_write", "_card_read",
121// 0x50
122 "_new_card", "Krom2RawAdd", "sys_b0_52", "sys_b0_53",
123 "_get_errno", "_get_error", "GetC0Table", "GetB0Table",
124 "_card_chan", "sys_b0_59", "sys_b0_5a", "ChangeClearPAD",
125 "_card_status", "_card_wait",
126};
127
128char *biosC0n[256] = {
129// 0x00
130 "InitRCnt", "InitException", "SysEnqIntRP", "SysDeqIntRP",
131 "get_free_EvCB_slot", "get_free_TCB_slot", "ExceptionHandler", "InstallExeptionHandler",
132 "SysInitMemory", "SysInitKMem", "ChangeClearRCnt", "SystemError",
133 "InitDefInt", "sys_c0_0d", "sys_c0_0e", "sys_c0_0f",
134// 0x10
135 "sys_c0_10", "sys_c0_11", "InstallDevices", "FlushStfInOutPut",
136 "sys_c0_14", "_cdevinput", "_cdevscan", "_circgetc",
137 "_circputc", "ioabort", "sys_c0_1a", "KernelRedirect",
138 "PatchAOTable",
139};
140
141//#define r0 (psxRegs.GPR.n.r0)
142#define at (psxRegs.GPR.n.at)
143#define v0 (psxRegs.GPR.n.v0)
144#define v1 (psxRegs.GPR.n.v1)
145#define a0 (psxRegs.GPR.n.a0)
146#define a1 (psxRegs.GPR.n.a1)
147#define a2 (psxRegs.GPR.n.a2)
148#define a3 (psxRegs.GPR.n.a3)
149#define t0 (psxRegs.GPR.n.t0)
150#define t1 (psxRegs.GPR.n.t1)
151#define t2 (psxRegs.GPR.n.t2)
152#define t3 (psxRegs.GPR.n.t3)
153#define t4 (psxRegs.GPR.n.t4)
154#define t5 (psxRegs.GPR.n.t5)
155#define t6 (psxRegs.GPR.n.t6)
156#define t7 (psxRegs.GPR.n.t7)
157#define t8 (psxRegs.GPR.n.t8)
158#define t9 (psxRegs.GPR.n.t9)
159#define s0 (psxRegs.GPR.n.s0)
160#define s1 (psxRegs.GPR.n.s1)
161#define s2 (psxRegs.GPR.n.s2)
162#define s3 (psxRegs.GPR.n.s3)
163#define s4 (psxRegs.GPR.n.s4)
164#define s5 (psxRegs.GPR.n.s5)
165#define s6 (psxRegs.GPR.n.s6)
166#define s7 (psxRegs.GPR.n.s7)
167#define k0 (psxRegs.GPR.n.k0)
168#define k1 (psxRegs.GPR.n.k1)
169#define gp (psxRegs.GPR.n.gp)
170#define sp (psxRegs.GPR.n.sp)
171#define fp (psxRegs.GPR.n.s8)
172#define ra (psxRegs.GPR.n.ra)
173#define pc0 (psxRegs.pc)
174
175#define Ra0 ((char *)PSXM(a0))
176#define Ra1 ((char *)PSXM(a1))
177#define Ra2 ((char *)PSXM(a2))
178#define Ra3 ((char *)PSXM(a3))
179#define Rv0 ((char *)PSXM(v0))
180#define Rsp ((char *)PSXM(sp))
181
182typedef struct {
183 u32 desc;
184 s32 status;
185 s32 mode;
186 u32 fhandler;
187} EvCB[32];
188
189#define EvStUNUSED 0x0000
190#define EvStWAIT 0x1000
191#define EvStACTIVE 0x2000
192#define EvStALREADY 0x4000
193
194#define EvMdINTR 0x1000
195#define EvMdNOINTR 0x2000
196
197/*
198typedef struct {
199 s32 next;
200 s32 func1;
201 s32 func2;
202 s32 pad;
203} SysRPst;
204*/
205
206typedef struct {
207 s32 status;
208 s32 mode;
209 u32 reg[32];
210 u32 func;
211} TCB;
212
213typedef struct {
214 u32 _pc0;
215 u32 gp0;
216 u32 t_addr;
217 u32 t_size;
218 u32 d_addr;
219 u32 d_size;
220 u32 b_addr;
221 u32 b_size;
222 u32 S_addr;
223 u32 s_size;
224 u32 _sp, _fp, _gp, ret, base;
225} EXEC;
226
227struct DIRENTRY {
228 char name[20];
229 s32 attr;
230 s32 size;
231 u32 next;
232 s32 head;
233 char system[4];
234};
235
236typedef struct {
237 char name[32];
238 u32 mode;
239 u32 offset;
240 u32 size;
241 u32 mcfile;
242} FileDesc;
243
244static u32 *jmp_int = NULL;
245static int *pad_buf = NULL;
246static char *pad_buf1 = NULL, *pad_buf2 = NULL;
247static int pad_buf1len, pad_buf2len;
248
249static u32 regs[35];
250static EvCB *Event;
251static EvCB *HwEV; // 0xf0
252static EvCB *EvEV; // 0xf1
253static EvCB *RcEV; // 0xf2
254static EvCB *UeEV; // 0xf3
255static EvCB *SwEV; // 0xf4
256static EvCB *ThEV; // 0xff
257static u32 *heap_addr = NULL;
258static u32 *heap_end = NULL;
259static u32 SysIntRP[8];
260static int CardState = -1;
261static TCB Thread[8];
262static int CurThread = 0;
263static FileDesc FDesc[32];
e9fda093 264static u32 card_active_chan;
ef79bbde
P		 265
266boolean hleSoftCall = FALSE;
267
268static inline void softCall(u32 pc) {
269 pc0 = pc;
270 ra = 0x80001000;
271
272 hleSoftCall = TRUE;
273
274 while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
275
276 hleSoftCall = FALSE;
277}
278
279static inline void softCall2(u32 pc) {
280 u32 sra = ra;
281 pc0 = pc;
282 ra = 0x80001000;
283
284 hleSoftCall = TRUE;
285
286 while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
287 ra = sra;
288
289 hleSoftCall = FALSE;
290}
291
292static inline void DeliverEvent(u32 ev, u32 spec) {
293 if (Event[ev][spec].status != EvStACTIVE) return;
294
295// Event[ev][spec].status = EvStALREADY;
296 if (Event[ev][spec].mode == EvMdINTR) {
297 softCall2(Event[ev][spec].fhandler);
298 } else Event[ev][spec].status = EvStALREADY;
299}
300
301static inline void SaveRegs() {
302 memcpy(regs, psxRegs.GPR.r, 32*4);
303 regs[32] = psxRegs.GPR.n.lo;
304 regs[33] = psxRegs.GPR.n.hi;
305 regs[34] = psxRegs.pc;
306}
307
308static inline void LoadRegs() {
309 memcpy(psxRegs.GPR.r, regs, 32*4);
310 psxRegs.GPR.n.lo = regs[32];
311 psxRegs.GPR.n.hi = regs[33];
312}
313
314/* *
315// *
316// *
317// System calls A0 */
318
d99f6068 319
320#define buread(Ra1, mcd, length) { \
321 SysPrintf("read %d: %x,%x (%s)\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2, Mcd##mcd##Data + 128 * FDesc[1 + mcd].mcfile + 0xa); \
322 ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
323 memcpy(Ra1, ptr, length); \
324 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
325 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
326 if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
327 else v0 = length; \
328 FDesc[1 + mcd].offset += v0; \
329}
330
331#define buwrite(Ra1, mcd, length) { \
332 u32 offset = + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
333 SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
334 ptr = Mcd##mcd##Data + offset; \
335 memcpy(ptr, Ra1, length); \
336 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
337 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
338 FDesc[1 + mcd].offset += length; \
339 if (FDesc[1 + mcd].mode & 0x8000) v0 = 0; \
340 else v0 = length; \
341}
342
343
324cec89 344/* Internally redirects to "FileRead(fd,tempbuf,1)".*/
345/* For some strange reason, the returned character is sign-expanded; */
346/* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
347/* TODO FIX ME : Properly implement this behaviour */
348void psxBios_getc(void) // 0x03, 0x35
349{
d99f6068 350 char *ptr;
324cec89 351 void *pa1 = Ra1;
352#ifdef PSXBIOS_LOG
353 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
354#endif
355 v0 = -1;
356
357 if (pa1) {
358 switch (a0) {
359 case 2: buread(pa1, 1, 1); break;
360 case 3: buread(pa1, 2, 1); break;
361 }
362 }
363
364 pc0 = ra;
365}
366
367/* Copy of psxBios_write, except size is 1. */
368void psxBios_putc(void) // 0x09, 0x3B
369{
d99f6068 370 char *ptr;
324cec89 371 void *pa1 = Ra1;
372#ifdef PSXBIOS_LOG
373 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
374#endif
375 v0 = -1;
376 if (!pa1) {
377 pc0 = ra;
378 return;
379 }
380
381 if (a0 == 1) { // stdout
382 char *ptr = (char *)pa1;
383
384 v0 = a2;
385 while (a2 > 0) {
386 printf("%c", *ptr++); a2--;
387 }
388 pc0 = ra; return;
389 }
390
391 switch (a0) {
392 case 2: buwrite(pa1, 1, 1); break;
393 case 3: buwrite(pa1, 2, 1); break;
394 }
395
396 pc0 = ra;
397}
ef79bbde 398
ba11675c 399void psxBios_todigit(void) // 0x0a
400{
401 int c = a0;
402#ifdef PSXBIOS_LOG
403 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
404#endif
405 c &= 0xFF;
406 if (c >= 0x30 && c < 0x3A) {
407 c -= 0x30;
408 }
409 else if (c > 0x60 && c < 0x7B) {
410 c -= 0x20;
411 }
412 else if (c > 0x40 && c < 0x5B) {
413 c = c - 0x41 + 10;
414 }
415 else if (c >= 0x80) {
416 c = -1;
417 }
418 else
419 {
420 c = 0x0098967F;
421 }
422 v0 = c;
423 pc0 = ra;
424}
425
ef79bbde
P		 426void psxBios_abs() { // 0x0e
427 if ((s32)a0 < 0) v0 = -(s32)a0;
428 else v0 = a0;
429 pc0 = ra;
430}
431
432void psxBios_labs() { // 0x0f
433 psxBios_abs();
434}
435
436void psxBios_atoi() { // 0x10
437 s32 n = 0, f = 0;
438 char *p = (char *)Ra0;
439
440 for (;;p++) {
441 switch (*p) {
442 case ' ': case '\t': continue;
443 case '-': f++;
444 case '+': p++;
445 }
446 break;
447 }
448
449 while (*p >= '0' && *p <= '9') {
450 n = n * 10 + *p++ - '0';
451 }
452
453 v0 = (f ? -n : n);
454 pc0 = ra;
455}
456
457void psxBios_atol() { // 0x11
458 psxBios_atoi();
459}
460
461void psxBios_setjmp() { // 0x13
462 u32 *jmp_buf = (u32 *)Ra0;
463 int i;
464
465#ifdef PSXBIOS_LOG
466 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
467#endif
468
469 jmp_buf[0] = ra;
470 jmp_buf[1] = sp;
471 jmp_buf[2] = fp;
472 for (i = 0; i < 8; i++) // s0-s7
473 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
474 jmp_buf[11] = gp;
475
476 v0 = 0; pc0 = ra;
477}
478
479void psxBios_longjmp() { // 0x14
480 u32 *jmp_buf = (u32 *)Ra0;
481 int i;
482
483#ifdef PSXBIOS_LOG
484 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
485#endif
486
487 ra = jmp_buf[0]; /* ra */
488 sp = jmp_buf[1]; /* sp */
489 fp = jmp_buf[2]; /* fp */
490 for (i = 0; i < 8; i++) // s0-s7
491 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
492 gp = jmp_buf[11]; /* gp */
493
494 v0 = a1; pc0 = ra;
495}
496
497void psxBios_strcat() { // 0x15
498 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
499
500#ifdef PSXBIOS_LOG
501 PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
502#endif
bee52312 503 if (a0 == 0 || a1 == 0)
504 {
505 v0 = 0;
506 pc0 = ra;
507 return;
508 }
ef79bbde
P		 509 while (*p1++);
510 --p1;
511 while ((*p1++ = *p2++) != '\0');
512
513 v0 = a0; pc0 = ra;
514}
515
516void psxBios_strncat() { // 0x16
517 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
518 s32 n = a2;
519
520#ifdef PSXBIOS_LOG
521 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
522#endif
f42e1e90 523 if (a0 == 0 || a1 == 0)
524 {
525 v0 = 0;
526 pc0 = ra;
527 return;
528 }
ef79bbde
P		 529 while (*p1++);
530 --p1;
531 while ((*p1++ = *p2++) != '\0') {
532 if (--n < 0) {
533 *--p1 = '\0';
534 break;
535 }
536 }
537
538 v0 = a0; pc0 = ra;
539}
540
541void psxBios_strcmp() { // 0x17
542 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
543
544#ifdef PSXBIOS_LOG
545 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
546#endif
547
548 while (*p1 == *p2++) {
549 if (*p1++ == '\0') {
550 v0 = 0;
551 pc0 = ra;
552 return;
553 }
554 }
555
556 v0 = (*p1 - *--p2);
557 pc0 = ra;
558}
559
560void psxBios_strncmp() { // 0x18
561 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
562 s32 n = a2;
563
564#ifdef PSXBIOS_LOG
565 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
566#endif
567
568 while (--n >= 0 && *p1 == *p2++) {
569 if (*p1++ == '\0') {
570 v0 = 0;
571 pc0 = ra;
572 return;
573 }
574 }
575
576 v0 = (n < 0 ? 0 : *p1 - *--p2);
577 pc0 = ra;
578}
579
580void psxBios_strcpy() { // 0x19
581 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
582 while ((*p1++ = *p2++) != '\0');
583
584 v0 = a0; pc0 = ra;
585}
586
587void psxBios_strncpy() { // 0x1a
588 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
589 s32 n = a2, i;
590
591 for (i = 0; i < n; i++) {
592 if ((*p1++ = *p2++) == '\0') {
593 while (++i < n) {
594 *p1++ = '\0';
595 }
596 v0 = a0; pc0 = ra;
597 return;
598 }
599 }
600
601 v0 = a0; pc0 = ra;
602}
603
604void psxBios_strlen() { // 0x1b
605 char *p = (char *)Ra0;
606 v0 = 0;
607 while (*p++) v0++;
608 pc0 = ra;
609}
610
611void psxBios_index() { // 0x1c
612 char *p = (char *)Ra0;
613
614 do {
615 if (*p == a1) {
616 v0 = a0 + (p - (char *)Ra0);
617 pc0 = ra;
618 return;
619 }
620 } while (*p++ != '\0');
621
622 v0 = 0; pc0 = ra;
623}
624
625void psxBios_rindex() { // 0x1d
626 char *p = (char *)Ra0;
627
628 v0 = 0;
629
630 do {
631 if (*p == a1)
632 v0 = a0 + (p - (char *)Ra0);
633 } while (*p++ != '\0');
634
635 pc0 = ra;
636}
637
638void psxBios_strchr() { // 0x1e
639 psxBios_index();
640}
641
642void psxBios_strrchr() { // 0x1f
643 psxBios_rindex();
644}
645
646void psxBios_strpbrk() { // 0x20
647 char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
648
649 while ((c = *p1++) != '\0') {
650 for (scanp = p2; (sc = *scanp++) != '\0';) {
651 if (sc == c) {
652 v0 = a0 + (p1 - 1 - (char *)Ra0);
653 pc0 = ra;
654 return;
655 }
656 }
657 }
658
659 // BUG: return a0 instead of NULL if not found
660 v0 = a0; pc0 = ra;
661}
662
663void psxBios_strspn() { // 0x21
664 char *p1, *p2;
665
666 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
667 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
668 if (*p2 == '\0') break;
669 }
670
671 v0 = p1 - (char *)Ra0; pc0 = ra;
672}
673
674void psxBios_strcspn() { // 0x22
675 char *p1, *p2;
676
677 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
678 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
679 if (*p2 != '\0') break;
680 }
681
682 v0 = p1 - (char *)Ra0; pc0 = ra;
683}
684
685void psxBios_strtok() { // 0x23
686 char *pcA0 = (char *)Ra0;
687 char *pcRet = strtok(pcA0, (char *)Ra1);
688 if (pcRet)
689 v0 = a0 + pcRet - pcA0;
690 else
691 v0 = 0;
692 pc0 = ra;
693}
694
695void psxBios_strstr() { // 0x24
696 char *p = (char *)Ra0, *p1, *p2;
697
698 while (*p != '\0') {
699 p1 = p;
700 p2 = (char *)Ra1;
701
702 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
703 p1++; p2++;
704 }
705
706 if (*p2 == '\0') {
707 v0 = a0 + (p - (char *)Ra0);
708 pc0 = ra;
709 return;
710 }
711
712 p++;
713 }
714
715 v0 = 0; pc0 = ra;
716}
717
718void psxBios_toupper() { // 0x25
719 v0 = (s8)(a0 & 0xff);
720 if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
721 pc0 = ra;
722}
723
724void psxBios_tolower() { // 0x26
725 v0 = (s8)(a0 & 0xff);
726 if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
727 pc0 = ra;
728}
729
730void psxBios_bcopy() { // 0x27
731 char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
5ec7acdf 732 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde
P		 733
734 pc0 = ra;
735}
736
737void psxBios_bzero() { // 0x28
738 char *p = (char *)Ra0;
5ec7acdf 739 while ((s32)a1-- > 0) *p++ = '\0';
ef79bbde
P		 740
741 pc0 = ra;
742}
743
744void psxBios_bcmp() { // 0x29
745 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
746
747 if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
748
5ec7acdf 749 while ((s32)a2-- > 0) {
ef79bbde
P		 750 if (*p1++ != *p2++) {
751 v0 = *p1 - *p2; // BUG: compare the NEXT byte
752 pc0 = ra;
753 return;
754 }
755 }
756
757 v0 = 0; pc0 = ra;
758}
759
760void psxBios_memcpy() { // 0x2a
761 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
5ec7acdf 762 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde
P		 763
764 v0 = a0; pc0 = ra;
765}
766
767void psxBios_memset() { // 0x2b
768 char *p = (char *)Ra0;
5ec7acdf 769 while ((s32)a2-- > 0) *p++ = (char)a1;
ef79bbde 770
5ec7acdf 771 a2 = 0;
ef79bbde
P		 772 v0 = a0; pc0 = ra;
773}
774
775void psxBios_memmove() { // 0x2c
776 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
777
778 if (p2 <= p1 && p2 + a2 > p1) {
779 a2++; // BUG: copy one more byte here
780 p1 += a2;
781 p2 += a2;
5ec7acdf 782 while ((s32)a2-- > 0) *--p1 = *--p2;
ef79bbde 783 } else {
5ec7acdf 784 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde
P		 785 }
786
787 v0 = a0; pc0 = ra;
788}
789
790void psxBios_memcmp() { // 0x2d
791 psxBios_bcmp();
792}
793
794void psxBios_memchr() { // 0x2e
795 char *p = (char *)Ra0;
796
5ec7acdf 797 while ((s32)a2-- > 0) {
ef79bbde
P		 798 if (*p++ != (s8)a1) continue;
799 v0 = a0 + (p - (char *)Ra0 - 1);
800 pc0 = ra;
801 return;
802 }
803
804 v0 = 0; pc0 = ra;
805}
806
807void psxBios_rand() { // 0x2f
808 u32 s = psxMu32(0x9010) * 1103515245 + 12345;
809 v0 = (s >> 16) & 0x7fff;
810 psxMu32ref(0x9010) = SWAPu32(s);
811 pc0 = ra;
812}
813
814void psxBios_srand() { // 0x30
815 psxMu32ref(0x9010) = SWAPu32(a0);
816 pc0 = ra;
817}
818
819static u32 qscmpfunc, qswidth;
820
821static inline int qscmp(char *a, char *b) {
822 u32 sa0 = a0;
823
824 a0 = sa0 + (a - (char *)PSXM(sa0));
825 a1 = sa0 + (b - (char *)PSXM(sa0));
826
827 softCall2(qscmpfunc);
828
829 a0 = sa0;
830 return (s32)v0;
831}
832
833static inline void qexchange(char *i, char *j) {
834 char t;
835 int n = qswidth;
836
837 do {
838 t = *i;
839 *i++ = *j;
840 *j++ = t;
841 } while (--n);
842}
843
844static inline void q3exchange(char *i, char *j, char *k) {
845 char t;
846 int n = qswidth;
847
848 do {
849 t = *i;
850 *i++ = *k;
851 *k++ = *j;
852 *j++ = t;
853 } while (--n);
854}
855
856static void qsort_main(char *a, char *l) {
857 char *i, *j, *lp, *hp;
858 int c;
859 unsigned int n;
860
861start:
862 if ((n = l - a) <= qswidth)
863 return;
864 n = qswidth * (n / (2 * qswidth));
865 hp = lp = a + n;
866 i = a;
867 j = l - qswidth;
868 while (TRUE) {
869 if (i < lp) {
870 if ((c = qscmp(i, lp)) == 0) {
871 qexchange(i, lp -= qswidth);
872 continue;
873 }
874 if (c < 0) {
875 i += qswidth;
876 continue;
877 }
878 }
879
880loop:
881 if (j > hp) {
882 if ((c = qscmp(hp, j)) == 0) {
883 qexchange(hp += qswidth, j);
884 goto loop;
885 }
886 if (c > 0) {
887 if (i == lp) {
888 q3exchange(i, hp += qswidth, j);
889 i = lp += qswidth;
890 goto loop;
891 }
892 qexchange(i, j);
893 j -= qswidth;
894 i += qswidth;
895 continue;
896 }
897 j -= qswidth;
898 goto loop;
899 }
900
901 if (i == lp) {
902 if (lp - a >= l - hp) {
903 qsort_main(hp + qswidth, l);
904 l = lp;
905 } else {
906 qsort_main(a, lp);
907 a = hp + qswidth;
908 }
909 goto start;
910 }
911
912 q3exchange(j, lp -= qswidth, i);
913 j = hp -= qswidth;
914 }
915}
916
917void psxBios_qsort() { // 0x31
918 qswidth = a2;
919 qscmpfunc = a3;
920 qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
921
922 pc0 = ra;
923}
924
925void psxBios_malloc() { // 0x33
808a13bd 926 unsigned int *chunk, *newchunk = NULL;
927 unsigned int dsize = 0, csize, cstat;
ef79bbde
P		 928 int colflag;
929#ifdef PSXBIOS_LOG
930 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
931#endif
932
933 // scan through heap and combine free chunks of space
934 chunk = heap_addr;
935 colflag = 0;
936 while(chunk < heap_end) {
937 // get size and status of actual chunk
938 csize = ((u32)*chunk) & 0xfffffffc;
939 cstat = ((u32)*chunk) & 1;
940
941 // it's a free chunk
942 if(cstat == 1) {
943 if(colflag == 0) {
944 newchunk = chunk;
945 dsize = csize;
946 colflag = 1; // let's begin a new collection of free memory
947 }
948 else dsize += (csize+4); // add the new size including header
949 }
950 // not a free chunk: did we start a collection ?
951 else {
952 if(colflag == 1) { // collection is over
953 colflag = 0;
954 *newchunk = SWAP32(dsize | 1);
955 }
956 }
957
958 // next chunk
959 chunk = (u32*)((uptr)chunk + csize + 4);
960 }
961 // if neccessary free memory on end of heap
962 if (colflag == 1)
963 *newchunk = SWAP32(dsize | 1);
964
965 chunk = heap_addr;
966 csize = ((u32)*chunk) & 0xfffffffc;
967 cstat = ((u32)*chunk) & 1;
968 dsize = (a0 + 3) & 0xfffffffc;
969
970 // exit on uninitialized heap
971 if (chunk == NULL) {
972 SysPrintf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
973 v0 = 0;
974 pc0 = ra;
975 return;
976 }
977
978 // search an unused chunk that is big enough until the end of the heap
979 while ((dsize > csize || cstat == 0) && chunk < heap_end ) {
980 chunk = (u32*)((uptr)chunk + csize + 4);
981 csize = ((u32)*chunk) & 0xfffffffc;
982 cstat = ((u32)*chunk) & 1;
983 }
984
985 // catch out of memory
986 if(chunk >= heap_end) { SysPrintf("malloc %x,%x: Out of memory error!\n", v0, a0); v0 = 0; pc0 = ra; return; }
987
988 // allocate memory
989 if(dsize == csize) {
990 // chunk has same size
991 *chunk &= 0xfffffffc;
992 }
993 else {
994 // split free chunk
995 *chunk = SWAP32(dsize);
996 newchunk = (u32*)((uptr)chunk + dsize + 4);
808a13bd 997 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
ef79bbde
P		 998 }
999
1000 // return pointer to allocated memory
1001 v0 = ((unsigned long)chunk - (unsigned long)psxM) + 4;
1002 v0|= 0x80000000;
1003 SysPrintf ("malloc %x,%x\n", v0, a0);
1004 pc0 = ra;
1005}
1006
1007void psxBios_free() { // 0x34
1008
1009#ifdef PSXBIOS_LOG
1010 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1011#endif
1012
1013 SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1014
1015 *(u32*)(Ra0-4) |= 1; // set chunk to free
1016 pc0 = ra;
1017}
1018
1019void psxBios_calloc() { // 0x37
02949f79 1020 void *pv0;
ef79bbde
P		 1021#ifdef PSXBIOS_LOG
1022 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1023#endif
1024
1025 a0 = a0 * a1;
1026 psxBios_malloc();
02949f79 1027 pv0 = Rv0;
1028 if (pv0)
1029 memset(pv0, 0, a0);
ef79bbde
P		 1030}
1031
1032void psxBios_realloc() { // 0x38
1033 u32 block = a0;
1034 u32 size = a1;
1035#ifdef PSXBIOS_LOG
1036 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1037#endif
1038
1039 a0 = block;
391b1d5b 1040 /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1041 if (block == 0)
1042 {
1043 psxBios_malloc();
1044 }
1045 /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1046 else if (size == 0)
1047 {
1048 psxBios_free();
1049 }
1050 /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1051 /* Note that it is not quite implemented this way here. */
1052 else
1053 {
1054 psxBios_free();
1055 a0 = size;
1056 psxBios_malloc();
1057 }
ef79bbde
P		 1058}
1059
1060
1061/* InitHeap(void *block , int n) */
1062void psxBios_InitHeap() { // 0x39
1063 unsigned int size;
1064
1065#ifdef PSXBIOS_LOG
1066 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1067#endif
1068
1069 if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1070 else size = a1;
1071
1072 size &= 0xfffffffc;
1073
1074 heap_addr = (u32 *)Ra0;
1075 heap_end = (u32 *)((u8 *)heap_addr + size);
1076 *heap_addr = SWAP32(size | 1);
1077
c979c3ee 1078 SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
ef79bbde
P		 1079
1080 pc0 = ra;
1081}
1082
1083void psxBios_getchar() { //0x3b
1084 v0 = getchar(); pc0 = ra;
1085}
1086
1087void psxBios_printf() { // 0x3f
1088 char tmp[1024];
1089 char tmp2[1024];
1090 u32 save[4];
1091 char *ptmp = tmp;
1092 int n=1, i=0, j;
02949f79 1093 void *psp;
1094
1095 psp = PSXM(sp);
1096 if (psp) {
1097 memcpy(save, psp, 4 * 4);
1098 psxMu32ref(sp) = SWAP32((u32)a0);
1099 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1100 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1101 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1102 }
ef79bbde
P		 1103
1104 while (Ra0[i]) {
1105 switch (Ra0[i]) {
1106 case '%':
1107 j = 0;
1108 tmp2[j++] = '%';
1109_start:
1110 switch (Ra0[++i]) {
1111 case '.':
1112 case 'l':
1113 tmp2[j++] = Ra0[i]; goto _start;
1114 default:
1115 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1116 tmp2[j++] = Ra0[i];
1117 goto _start;
1118 }
1119 break;
1120 }
1121 tmp2[j++] = Ra0[i];
1122 tmp2[j] = 0;
1123
1124 switch (Ra0[i]) {
1125 case 'f': case 'F':
1126 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1127 case 'a': case 'A':
1128 case 'e': case 'E':
1129 case 'g': case 'G':
1130 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1131 case 'p':
888468ff 1132 case 'i': case 'u':
ef79bbde
P		 1133 case 'd': case 'D':
1134 case 'o': case 'O':
1135 case 'x': case 'X':
1136 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1137 case 'c':
1138 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1139 case 's':
1140 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1141 case '%':
1142 *ptmp++ = Ra0[i]; break;
1143 }
1144 i++;
1145 break;
1146 default:
1147 *ptmp++ = Ra0[i++];
1148 }
1149 }
1150 *ptmp = 0;
1151
02949f79 1152 if (psp)
1153 memcpy(psp, save, 4 * 4);
ef79bbde 1154
808a13bd 1155 SysPrintf("%s", tmp);
ef79bbde
P		 1156
1157 pc0 = ra;
1158}
1159
e7e1f572 1160void psxBios_format() { // 0x41
1161 if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1162 {
1163 CreateMcd(Config.Mcd1);
1164 LoadMcd(1, Config.Mcd1);
1165 v0 = 1;
1166 }
1167 else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1168 {
1169 CreateMcd(Config.Mcd2);
1170 LoadMcd(2, Config.Mcd2);
1171 v0 = 1;
1172 }
1173 else
1174 {
1175 v0 = 0;
1176 }
1177 pc0 = ra;
1178}
1179
ef79bbde
P		 1180/*
1181 * long Load(char *name, struct EXEC *header);
1182 */
1183
1184void psxBios_Load() { // 0x42
1185 EXE_HEADER eheader;
02949f79 1186 void *pa1;
ef79bbde
P		 1187
1188#ifdef PSXBIOS_LOG
1189 PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1190#endif
1191
02949f79 1192 pa1 = Ra1;
1193 if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1194 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
ef79bbde
P		 1195 v0 = 1;
1196 } else v0 = 0;
1197
1198 pc0 = ra;
1199}
1200
1201/*
1202 * int Exec(struct EXEC *header , int argc , char **argv);
1203 */
1204
1205void psxBios_Exec() { // 43
1206 EXEC *header = (EXEC*)Ra0;
1207 u32 tmp;
1208
1209#ifdef PSXBIOS_LOG
1210 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1211#endif
1212
1213 header->_sp = sp;
1214 header->_fp = fp;
1215 header->_sp = sp;
1216 header->_gp = gp;
1217 header->ret = ra;
1218 header->base = s0;
1219
1220 if (header->S_addr != 0) {
1221 tmp = header->S_addr + header->s_size;
1222 sp = tmp;
1223 fp = sp;
1224 }
1225
1226 gp = header->gp0;
1227
1228 s0 = a0;
1229
1230 a0 = a1;
1231 a1 = a2;
1232
1233 ra = 0x8000;
1234 pc0 = header->_pc0;
1235}
1236
1237void psxBios_FlushCache() { // 44
1238#ifdef PSXBIOS_LOG
1239 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1240#endif
1241
1242 pc0 = ra;
1243}
1244
1245void psxBios_GPU_dw() { // 0x46
1246 int size;
1247 s32 *ptr;
1248
1249#ifdef PSXBIOS_LOG
1250 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1251#endif
1252
1253 GPU_writeData(0xa0000000);
1254 GPU_writeData((a1<<16)|(a0&0xffff));
1255 GPU_writeData((a3<<16)|(a2&0xffff));
1256 size = (a2*a3+1)/2;
1257 ptr = (s32*)PSXM(Rsp[4]); //that is correct?
1258 do {
1259 GPU_writeData(SWAP32(*ptr));
1260 ptr++;
1261 } while(--size);
1262
1263 pc0 = ra;
1264}
1265
1266void psxBios_mem2vram() { // 0x47
1267 int size;
1268
1269 GPU_writeData(0xa0000000);
1270 GPU_writeData((a1<<16)|(a0&0xffff));
1271 GPU_writeData((a3<<16)|(a2&0xffff));
1272 size = (a2*a3+1)/2;
1273 GPU_writeStatus(0x04000002);
1274 psxHwWrite32(0x1f8010f4,0);
1275 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1276 psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1277 psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1278 psxHwWrite32(0x1f8010a8,0x01000201);
1279
1280 pc0 = ra;
1281}
1282
1283void psxBios_SendGPU() { // 0x48
1284 GPU_writeStatus(a0);
ddbaf678 1285 gpuSyncPluginSR();
ef79bbde
P		 1286 pc0 = ra;
1287}
1288
1289void psxBios_GPU_cw() { // 0x49
1290 GPU_writeData(a0);
1291 pc0 = ra;
1292}
1293
1294void psxBios_GPU_cwb() { // 0x4a
1295 s32 *ptr = (s32*)Ra0;
1296 int size = a1;
1297 while(size--) {
1298 GPU_writeData(SWAP32(*ptr));
1299 ptr++;
1300 }
1301
1302 pc0 = ra;
1303}
1304
1305void psxBios_GPU_SendPackets() { //4b:
1306 GPU_writeStatus(0x04000002);
1307 psxHwWrite32(0x1f8010f4,0);
1308 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1309 psxHwWrite32(0x1f8010a0,a0);
1310 psxHwWrite32(0x1f8010a4,0);
1311 psxHwWrite32(0x1f8010a8,0x010000401);
1312 pc0 = ra;
1313}
1314
1315void psxBios_sys_a0_4c() { // 0x4c GPU relate
1316 psxHwWrite32(0x1f8010a8,0x00000401);
1317 GPU_writeData(0x0400000);
1318 GPU_writeData(0x0200000);
1319 GPU_writeData(0x0100000);
cd1ea245 1320 v0 = 0x1f801814;
ef79bbde
P		 1321 pc0 = ra;
1322}
1323
1324void psxBios_GPU_GetGPUStatus() { // 0x4d
1325 v0 = GPU_readStatus();
1326 pc0 = ra;
1327}
1328
1329#undef s_addr
1330
1331void psxBios_LoadExec() { // 51
1332 EXEC *header = (EXEC*)PSXM(0xf000);
1333 u32 s_addr, s_size;
1334
1335#ifdef PSXBIOS_LOG
1336 PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1337#endif
1338 s_addr = a1; s_size = a2;
1339
1340 a1 = 0xf000;
1341 psxBios_Load();
1342
1343 header->S_addr = s_addr;
1344 header->s_size = s_size;
1345
1346 a0 = 0xf000; a1 = 0; a2 = 0;
1347 psxBios_Exec();
1348}
1349
1350void psxBios__bu_init() { // 70
1351#ifdef PSXBIOS_LOG
1352 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1353#endif
1354
1355 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1356 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1357
1358 pc0 = ra;
1359}
1360
1361void psxBios__96_init() { // 71
1362#ifdef PSXBIOS_LOG
1363 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1364#endif
1365
1366 pc0 = ra;
1367}
1368
1369void psxBios__96_remove() { // 72
1370#ifdef PSXBIOS_LOG
1371 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1372#endif
1373
1374 pc0 = ra;
1375}
1376
1377void psxBios_SetMem() { // 9f
1378 u32 new = psxHu32(0x1060);
1379
1380#ifdef PSXBIOS_LOG
1381 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1382#endif
1383
1384 switch(a0) {
1385 case 2:
1386 psxHu32ref(0x1060) = SWAP32(new);
1387 psxMu32ref(0x060) = a0;
1388 SysPrintf("Change effective memory : %d MBytes\n",a0);
1389 break;
1390
1391 case 8:
1392 psxHu32ref(0x1060) = SWAP32(new | 0x300);
1393 psxMu32ref(0x060) = a0;
1394 SysPrintf("Change effective memory : %d MBytes\n",a0);
1395
1396 default:
1397 SysPrintf("Effective memory must be 2/8 MBytes\n");
1398 break;
1399 }
1400
1401 pc0 = ra;
1402}
1403
1404void psxBios__card_info() { // ab
1405#ifdef PSXBIOS_LOG
1406 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1407#endif
76b81516 1408 u32 ret;
e9fda093 1409 card_active_chan = a0;
1410
76b81516 1411 switch (card_active_chan)
1412 {
1413 case 0x00: case 0x01: case 0x02: case 0x03:
1414 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1415 break;
1416 case 0x10: case 0x11: case 0x12: case 0x13:
1417 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1418 break;
1419 default:
1420#ifdef PSXBIOS_LOG
1421 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1422#endif
1423 ret = 0x11;
1424 break;
1425 }
1426
1427// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
ef79bbde
P		 1428// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1429 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
76b81516 1430 DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
ef79bbde
P		 1431
1432 v0 = 1; pc0 = ra;
1433}
1434
1435void psxBios__card_load() { // ac
1436#ifdef PSXBIOS_LOG
1437 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1438#endif
1439
e9fda093 1440 card_active_chan = a0;
1441
ef79bbde
P		 1442// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1443 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1444
1445 v0 = 1; pc0 = ra;
1446}
1447
1448/* System calls B0 */
1449
1450void psxBios_SetRCnt() { // 02
1451#ifdef PSXBIOS_LOG
1452 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1453#endif
1454
1455 a0&= 0x3;
1456 if (a0 != 3) {
1457 u32 mode=0;
1458
1459 psxRcntWtarget(a0, a1);
1460 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1461 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1462 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1463 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1464 else { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1465
1466 psxRcntWmode(a0, mode);
1467 }
1468 pc0 = ra;
1469}
1470
1471void psxBios_GetRCnt() { // 03
1472#ifdef PSXBIOS_LOG
1473 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1474#endif
1475
1476 a0&= 0x3;
1477 if (a0 != 3) v0 = psxRcntRcount(a0);
1478 else v0 = 0;
1479 pc0 = ra;
1480}
1481
1482void psxBios_StartRCnt() { // 04
1483#ifdef PSXBIOS_LOG
1484 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1485#endif
1486
1487 a0&= 0x3;
1488 if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1489 else psxHu32ref(0x1074)|= SWAPu32(0x1);
1490 v0 = 1; pc0 = ra;
1491}
1492
1493void psxBios_StopRCnt() { // 05
1494#ifdef PSXBIOS_LOG
1495 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1496#endif
1497
1498 a0&= 0x3;
1499 if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1500 else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1501 pc0 = ra;
1502}
1503
1504void psxBios_ResetRCnt() { // 06
1505#ifdef PSXBIOS_LOG
1506 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1507#endif
1508
1509 a0&= 0x3;
1510 if (a0 != 3) {
1511 psxRcntWmode(a0, 0);
1512 psxRcntWtarget(a0, 0);
1513 psxRcntWcount(a0, 0);
1514 }
1515 pc0 = ra;
1516}
1517
1518
1519/* gets ev for use with Event */
1520#define GetEv() \
1521 ev = (a0 >> 24) & 0xf; \
1522 if (ev == 0xf) ev = 0x5; \
1523 ev*= 32; \
1524 ev+= a0&0x1f;
1525
1526/* gets spec for use with Event */
1527#define GetSpec() \
1528 spec = 0; \
1529 switch (a1) { \
1530 case 0x0301: spec = 16; break; \
1531 case 0x0302: spec = 17; break; \
1532 default: \
1533 for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1534 break; \
1535 }
1536
1537void psxBios_DeliverEvent() { // 07
1538 int ev, spec;
1539 int i;
1540
1541 GetEv();
1542 GetSpec();
1543
1544#ifdef PSXBIOS_LOG
1545 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1546#endif
1547
1548 DeliverEvent(ev, spec);
1549
1550 pc0 = ra;
1551}
1552
1553void psxBios_OpenEvent() { // 08
1554 int ev, spec;
1555 int i;
1556
1557 GetEv();
1558 GetSpec();
1559
1560#ifdef PSXBIOS_LOG
1561 PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1562#endif
1563
1564 Event[ev][spec].status = EvStWAIT;
1565 Event[ev][spec].mode = a2;
1566 Event[ev][spec].fhandler = a3;
1567
1568 v0 = ev | (spec << 8);
1569 pc0 = ra;
1570}
1571
1572void psxBios_CloseEvent() { // 09
1573 int ev, spec;
1574
1575 ev = a0 & 0xff;
1576 spec = (a0 >> 8) & 0xff;
1577
1578#ifdef PSXBIOS_LOG
1579 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1580#endif
1581
1582 Event[ev][spec].status = EvStUNUSED;
1583
1584 v0 = 1; pc0 = ra;
1585}
1586
1587void psxBios_WaitEvent() { // 0a
1588 int ev, spec;
1589
1590 ev = a0 & 0xff;
1591 spec = (a0 >> 8) & 0xff;
ef79bbde
P		 1592#ifdef PSXBIOS_LOG
1593 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1594#endif
d95c9dcb 1595 if (Event[ev][spec].status == EvStUNUSED)
1596 {
1597 v0 = 0;
1598 pc0 = ra;
1599 return;
1600 }
ef79bbde 1601
d95c9dcb 1602 if (Event[ev][spec].status == EvStALREADY)
1603 {
1604 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1605 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1606 v0 = 1;
1607 pc0 = ra;
1608 return;
1609 }
ef79bbde 1610
d95c9dcb 1611 v0 = 0;
1612 pc0 = ra;
ef79bbde
P		 1613}
1614
1615void psxBios_TestEvent() { // 0b
1616 int ev, spec;
1617
1618 ev = a0 & 0xff;
1619 spec = (a0 >> 8) & 0xff;
1620
1621 if (Event[ev][spec].status == EvStALREADY) {
1622 Event[ev][spec].status = EvStACTIVE; v0 = 1;
1623 } else v0 = 0;
1624
1625#ifdef PSXBIOS_LOG
1626 PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1627#endif
1628
1629 pc0 = ra;
1630}
1631
1632void psxBios_EnableEvent() { // 0c
1633 int ev, spec;
1634
1635 ev = a0 & 0xff;
1636 spec = (a0 >> 8) & 0xff;
1637
1638#ifdef PSXBIOS_LOG
1639 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1640#endif
1641
1642 Event[ev][spec].status = EvStACTIVE;
1643
1644 v0 = 1; pc0 = ra;
1645}
1646
1647void psxBios_DisableEvent() { // 0d
1648 int ev, spec;
1649
1650 ev = a0 & 0xff;
1651 spec = (a0 >> 8) & 0xff;
1652
1653#ifdef PSXBIOS_LOG
1654 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1655#endif
1656
1657 Event[ev][spec].status = EvStWAIT;
1658
1659 v0 = 1; pc0 = ra;
1660}
1661
1662/*
1663 * long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1664 */
1665
1666void psxBios_OpenTh() { // 0e
1667 int th;
1668
1669 for (th=1; th<8; th++)
1670 if (Thread[th].status == 0) break;
1671
1672#ifdef PSXBIOS_LOG
1673 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1674#endif
1675
1676 Thread[th].status = 1;
1677 Thread[th].func = a0;
1678 Thread[th].reg[29] = a1;
1679 Thread[th].reg[28] = a2;
1680
1681 v0 = th; pc0 = ra;
1682}
1683
1684/*
1685 * int CloseTh(long thread);
1686 */
1687
1688void psxBios_CloseTh() { // 0f
1689 int th = a0 & 0xff;
1690
1691#ifdef PSXBIOS_LOG
1692 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1693#endif
1694
1695 if (Thread[th].status == 0) {
1696 v0 = 0;
1697 } else {
1698 Thread[th].status = 0;
1699 v0 = 1;
1700 }
1701
1702 pc0 = ra;
1703}
1704
1705/*
1706 * int ChangeTh(long thread);
1707 */
1708
1709void psxBios_ChangeTh() { // 10
1710 int th = a0 & 0xff;
1711
1712#ifdef PSXBIOS_LOG
1713// PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1714#endif
1715
1716 if (Thread[th].status == 0 || CurThread == th) {
1717 v0 = 0;
1718
1719 pc0 = ra;
1720 } else {
1721 v0 = 1;
1722
1723 if (Thread[CurThread].status == 2) {
1724 Thread[CurThread].status = 1;
1725 Thread[CurThread].func = ra;
1726 memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1727 }
1728
1729 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1730 pc0 = Thread[th].func;
1731 Thread[th].status = 2;
1732 CurThread = th;
1733 }
1734}
1735
1736void psxBios_InitPAD() { // 0x12
1737#ifdef PSXBIOS_LOG
1738 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1739#endif
1740
1741 pad_buf1 = (char*)Ra0;
1742 pad_buf1len = a1;
1743 pad_buf2 = (char*)Ra2;
1744 pad_buf2len = a3;
1745
1746 v0 = 1; pc0 = ra;
1747}
1748
1749void psxBios_StartPAD() { // 13
1750#ifdef PSXBIOS_LOG
1751 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1752#endif
1753
1754 psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1755 psxRegs.CP0.n.Status |= 0x401;
1756 pc0 = ra;
1757}
1758
1759void psxBios_StopPAD() { // 14
1760#ifdef PSXBIOS_LOG
1761 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1762#endif
1763
1764 pad_buf1 = NULL;
1765 pad_buf2 = NULL;
1766 pc0 = ra;
1767}
1768
1769void psxBios_PAD_init() { // 15
1770#ifdef PSXBIOS_LOG
1771 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1772#endif
a824e83d 1773 if (!(a0 == 0x20000000 || a0 == 0x20000001))
1774 {
1775 v0 = 0;
1776 pc0 = ra;
1777 return;
1778 }
ef79bbde
P		 1779 psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1780 pad_buf = (int *)Ra1;
1781 *pad_buf = -1;
1782 psxRegs.CP0.n.Status |= 0x401;
a824e83d 1783 v0 = 2;
ef79bbde
P		 1784 pc0 = ra;
1785}
1786
1787void psxBios_PAD_dr() { // 16
1788#ifdef PSXBIOS_LOG
1789 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1790#endif
1791
1792 v0 = -1; pc0 = ra;
1793}
1794
1795void psxBios_ReturnFromException() { // 17
1796 LoadRegs();
1797
1798 pc0 = psxRegs.CP0.n.EPC;
1799 if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1800
1801 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1802 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1803}
1804
1805void psxBios_ResetEntryInt() { // 18
1806#ifdef PSXBIOS_LOG
1807 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1808#endif
1809
1810 jmp_int = NULL;
1811 pc0 = ra;
1812}
1813
1814void psxBios_HookEntryInt() { // 19
1815#ifdef PSXBIOS_LOG
1816 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1817#endif
1818
1819 jmp_int = (u32*)Ra0;
1820 pc0 = ra;
1821}
1822
1823void psxBios_UnDeliverEvent() { // 0x20
1824 int ev, spec;
1825 int i;
1826
1827 GetEv();
1828 GetSpec();
1829
1830#ifdef PSXBIOS_LOG
1831 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
1832#endif
1833
1834 if (Event[ev][spec].status == EvStALREADY &&
1835 Event[ev][spec].mode == EvMdNOINTR)
1836 Event[ev][spec].status = EvStACTIVE;
1837
1838 pc0 = ra;
1839}
1840
595a136b 1841char ffile[64], *pfile;
1842int nfile;
1843static void buopen(int mcd, u8 *ptr, u8 *cfg)
1844{
1845 int i;
1846 u8 *fptr = ptr;
1847
1848 strcpy(FDesc[1 + mcd].name, Ra0+5);
1849 FDesc[1 + mcd].offset = 0;
1850 FDesc[1 + mcd].mode = a1;
1851
1852 for (i=1; i<16; i++) {
1853 fptr += 128;
1854 if ((*fptr & 0xF0) != 0x50) continue;
1855 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
1856 FDesc[1 + mcd].mcfile = i;
1857 SysPrintf("open %s\n", fptr+0xa);
1858 v0 = 1 + mcd;
1859 break;
1860 }
1861 if (a1 & 0x200 && v0 == -1) { /* FCREAT */
1862 fptr = ptr;
1863 for (i=1; i<16; i++) {
1864 int j, xor, nblk = a1 >> 16;
1865 u8 *pptr, *fptr2;
1866
1867 fptr += 128;
1868 if ((*fptr & 0xF0) != 0xa0) continue;
1869
1870 FDesc[1 + mcd].mcfile = i;
1871 fptr[0] = 0x51;
1872 fptr[4] = 0x00;
1873 fptr[5] = 0x20 * nblk;
1874 fptr[6] = 0x00;
1875 fptr[7] = 0x00;
1876 strcpy(fptr+0xa, FDesc[1 + mcd].name);
1877 pptr = fptr2 = fptr;
1878 for(j=2; j<=nblk; j++) {
1879 int k;
1880 for(i++; i<16; i++) {
1881 fptr2 += 128;
1882
1883 memset(fptr2, 0, 128);
1884 fptr2[0] = j < nblk ? 0x52 : 0x53;
1885 pptr[8] = i - 1;
1886 pptr[9] = 0;
1887 for (k=0, xor=0; k<127; k++) xor^= pptr[k];
1888 pptr[127] = xor;
1889 pptr = fptr2;
1890 break;
1891 }
1892 /* shouldn't this return ENOSPC if i == 16? */
1893 }
1894 pptr[8] = pptr[9] = 0xff;
1895 for (j=0, xor=0; j<127; j++) xor^= pptr[j];
1896 pptr[127] = xor;
1897 SysPrintf("openC %s %d\n", ptr, nblk);
1898 v0 = 1 + mcd;
1899 /* just go ahead and resave them all */
1900 SaveMcd(cfg, ptr, 128, 128 * 15);
1901 break;
1902 }
1903 /* shouldn't this return ENOSPC if i == 16? */
1904 }
ef79bbde
P		 1905}
1906
1907/*
1908 * int open(char *name , int mode);
1909 */
1910
1911void psxBios_open() { // 0x32
1912 int i;
1913 char *ptr;
02949f79 1914 void *pa0 = Ra0;
ef79bbde
P		 1915
1916#ifdef PSXBIOS_LOG
1917 PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
1918#endif
1919
1920 v0 = -1;
1921
02949f79 1922 if (pa0) {
1923 if (!strncmp(pa0, "bu00", 4)) {
595a136b 1924 buopen(1, Mcd1Data, Config.Mcd1);
02949f79 1925 }
ef79bbde 1926
02949f79 1927 if (!strncmp(pa0, "bu10", 4)) {
595a136b 1928 buopen(2, Mcd2Data, Config.Mcd2);
02949f79 1929 }
ef79bbde
P		 1930 }
1931
1932 pc0 = ra;
1933}
1934
1935/*
1936 * int lseek(int fd , int offset , int whence);
1937 */
1938
1939void psxBios_lseek() { // 0x33
1940#ifdef PSXBIOS_LOG
1941 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
1942#endif
1943
1944 switch (a2) {
1945 case 0: // SEEK_SET
1946 FDesc[a0].offset = a1;
1947 v0 = a1;
1948// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1949// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1950 break;
1951
1952 case 1: // SEEK_CUR
1953 FDesc[a0].offset+= a1;
1954 v0 = FDesc[a0].offset;
1955 break;
1956 }
1957
1958 pc0 = ra;
1959}
1960
595a136b 1961
ef79bbde
P		 1962/*
1963 * int read(int fd , void *buf , int nbytes);
1964 */
1965
1966void psxBios_read() { // 0x34
1967 char *ptr;
02949f79 1968 void *pa1 = Ra1;
ef79bbde
P		 1969
1970#ifdef PSXBIOS_LOG
1971 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
1972#endif
1973
1974 v0 = -1;
1975
02949f79 1976 if (pa1) {
1977 switch (a0) {
595a136b 1978 case 2: buread(pa1, 1, a2); break;
1979 case 3: buread(pa1, 2, a2); break;
02949f79 1980 }
ef79bbde
P		 1981 }
1982
1983 pc0 = ra;
1984}
1985
ef79bbde
P		 1986/*
1987 * int write(int fd , void *buf , int nbytes);
1988 */
1989
1990void psxBios_write() { // 0x35/0x03
1991 char *ptr;
02949f79 1992 void *pa1 = Ra1;
1993
1994#ifdef PSXBIOS_LOG
1995 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
1996#endif
1997
1998 v0 = -1;
1999 if (!pa1) {
2000 pc0 = ra;
2001 return;
2002 }
ef79bbde
P		 2003
2004 if (a0 == 1) { // stdout
02949f79 2005 char *ptr = pa1;
ef79bbde 2006
02949f79 2007 v0 = a2;
ef79bbde
P		 2008 while (a2 > 0) {
2009 SysPrintf("%c", *ptr++); a2--;
2010 }
2011 pc0 = ra; return;
2012 }
ef79bbde
P		 2013
2014 switch (a0) {
595a136b 2015 case 2: buwrite(pa1, 1, a2); break;
2016 case 3: buwrite(pa1, 2, a2); break;
ef79bbde
P		 2017 }
2018
2019 pc0 = ra;
2020}
2021
2022/*
2023 * int close(int fd);
2024 */
2025
2026void psxBios_close() { // 0x36
2027#ifdef PSXBIOS_LOG
2028 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2029#endif
2030
2031 v0 = a0;
2032 pc0 = ra;
2033}
2034
2035void psxBios_putchar() { // 3d
2036 SysPrintf("%c", (char)a0);
2037 pc0 = ra;
2038}
2039
2040void psxBios_puts() { // 3e/3f
808a13bd 2041 SysPrintf("%s", Ra0);
ef79bbde
P		 2042 pc0 = ra;
2043}
2044
2045char ffile[64], *pfile;
2046int nfile;
2047
2048#define bufile(mcd) { \
2049 while (nfile < 16) { \
2050 int match=1; \
2051 \
595a136b 2052 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
ef79bbde
P		 2053 nfile++; \
2054 if ((*ptr & 0xF0) != 0x50) continue; \
595a136b 2055 /* Bug link files show up as free block. */ \
2056 if (!ptr[0xa]) continue; \
ef79bbde
P		 2057 ptr+= 0xa; \
2058 if (pfile[0] == 0) { \
507d7c1d 2059 strncpy(dir->name, ptr, sizeof(dir->name)); \
2060 dir->name[sizeof(dir->name) - 1] = '\0'; \
ef79bbde
P		 2061 } else for (i=0; i<20; i++) { \
2062 if (pfile[i] == ptr[i]) { \
595a136b 2063 dir->name[i] = ptr[i]; continue; } \
ef79bbde
P		 2064 if (pfile[i] == '?') { \
2065 dir->name[i] = ptr[i]; continue; } \
2066 if (pfile[i] == '*') { \
2067 strcpy(dir->name+i, ptr+i); break; } \
2068 match = 0; break; \
2069 } \
2070 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
595a136b 2071 if (match == 0) { continue; } \
ef79bbde
P		 2072 dir->size = 8192; \
2073 v0 = _dir; \
2074 break; \
2075 } \
2076}
2077
2078/*
2079 * struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2080 */
2081
2082void psxBios_firstfile() { // 42
2083 struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
02949f79 2084 void *pa0 = Ra0;
ef79bbde
P		 2085 u32 _dir = a1;
2086 char *ptr;
2087 int i;
2088
2089#ifdef PSXBIOS_LOG
2090 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2091#endif
2092
2093 v0 = 0;
2094
02949f79 2095 if (pa0) {
2096 strcpy(ffile, pa0);
2097 pfile = ffile+5;
2098 nfile = 1;
2099 if (!strncmp(pa0, "bu00", 4)) {
2100 bufile(1);
2101 } else if (!strncmp(pa0, "bu10", 4)) {
2102 bufile(2);
2103 }
ef79bbde
P		 2104 }
2105
66ade381 2106 // firstfile() calls _card_read() internally, so deliver it's event
2107 DeliverEvent(0x11, 0x2);
2108
ef79bbde
P		 2109 pc0 = ra;
2110}
2111
2112/*
2113 * struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2114 */
2115
2116void psxBios_nextfile() { // 43
2117 struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2118 u32 _dir = a0;
2119 char *ptr;
2120 int i;
2121
2122#ifdef PSXBIOS_LOG
2123 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2124#endif
2125
2126 v0 = 0;
2127
2128 if (!strncmp(ffile, "bu00", 4)) {
2129 bufile(1);
2130 }
2131
2132 if (!strncmp(ffile, "bu10", 4)) {
2133 bufile(2);
2134 }
2135
2136 pc0 = ra;
2137}
2138
2139#define burename(mcd) { \
2140 for (i=1; i<16; i++) { \
2141 int namelen, j, xor = 0; \
2142 ptr = Mcd##mcd##Data + 128 * i; \
2143 if ((*ptr & 0xF0) != 0x50) continue; \
2144 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2145 namelen = strlen(Ra1+5); \
2146 memcpy(ptr+0xa, Ra1+5, namelen); \
2147 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2148 for (j=0; j<127; j++) xor^= ptr[j]; \
2149 ptr[127] = xor; \
2150 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2151 v0 = 1; \
2152 break; \
2153 } \
2154}
2155
2156/*
2157 * int rename(char *old, char *new);
2158 */
2159
2160void psxBios_rename() { // 44
02949f79 2161 void *pa0 = Ra0;
2162 void *pa1 = Ra1;
ef79bbde
P		 2163 char *ptr;
2164 int i;
2165
2166#ifdef PSXBIOS_LOG
2167 PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2168#endif
2169
2170 v0 = 0;
2171
02949f79 2172 if (pa0 && pa1) {
2173 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2174 burename(1);
2175 }
ef79bbde 2176
02949f79 2177 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2178 burename(2);
2179 }
ef79bbde
P		 2180 }
2181
2182 pc0 = ra;
2183}
2184
2185
2186#define budelete(mcd) { \
2187 for (i=1; i<16; i++) { \
2188 ptr = Mcd##mcd##Data + 128 * i; \
2189 if ((*ptr & 0xF0) != 0x50) continue; \
2190 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2191 *ptr = (*ptr & 0xf) | 0xA0; \
2192 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2193 SysPrintf("delete %s\n", ptr+0xa); \
2194 v0 = 1; \
2195 break; \
2196 } \
2197}
2198
2199/*
2200 * int delete(char *name);
2201 */
2202
2203void psxBios_delete() { // 45
02949f79 2204 void *pa0 = Ra0;
ef79bbde
P		 2205 char *ptr;
2206 int i;
2207
2208#ifdef PSXBIOS_LOG
2209 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2210#endif
2211
2212 v0 = 0;
2213
02949f79 2214 if (pa0) {
2215 if (!strncmp(pa0, "bu00", 4)) {
2216 budelete(1);
2217 }
ef79bbde 2218
02949f79 2219 if (!strncmp(pa0, "bu10", 4)) {
2220 budelete(2);
2221 }
ef79bbde
P		 2222 }
2223
2224 pc0 = ra;
2225}
2226
2227void psxBios_InitCARD() { // 4a
2228#ifdef PSXBIOS_LOG
2229 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2230#endif
2231
2232 CardState = 0;
2233
2234 pc0 = ra;
2235}
2236
2237void psxBios_StartCARD() { // 4b
2238#ifdef PSXBIOS_LOG
2239 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2240#endif
2241
2242 if (CardState == 0) CardState = 1;
2243
2244 pc0 = ra;
2245}
2246
2247void psxBios_StopCARD() { // 4c
2248#ifdef PSXBIOS_LOG
2249 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2250#endif
2251
2252 if (CardState == 1) CardState = 0;
2253
2254 pc0 = ra;
2255}
2256
2257void psxBios__card_write() { // 0x4e
02949f79 2258 void *pa2 = Ra2;
ef79bbde
P		 2259 int port;
2260
2261#ifdef PSXBIOS_LOG
2262 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2263#endif
bd48ba5e 2264 /* Function also accepts sector 400h (a bug) */
2265 if (!(a1 <= 0x400))
2266 {
2267 /* Invalid sectors */
2268 v0 = 0; pc0 = ra;
2269 return;
2270 }
e9fda093 2271 card_active_chan = a0;
ef79bbde
P		 2272 port = a0 >> 4;
2273
02949f79 2274 if (pa2) {
2275 if (port == 0) {
2276 memcpy(Mcd1Data + a1 * 128, pa2, 128);
2277 SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2278 } else {
2279 memcpy(Mcd2Data + a1 * 128, pa2, 128);
2280 SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2281 }
ef79bbde
P		 2282 }
2283
2284 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2285// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2286
2287 v0 = 1; pc0 = ra;
2288}
2289
2290void psxBios__card_read() { // 0x4f
02949f79 2291 void *pa2 = Ra2;
ef79bbde
P		 2292 int port;
2293
2294#ifdef PSXBIOS_LOG
2295 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2296#endif
bd48ba5e 2297 /* Function also accepts sector 400h (a bug) */
2298 if (!(a1 <= 0x400))
2299 {
2300 /* Invalid sectors */
2301 v0 = 0; pc0 = ra;
2302 return;
2303 }
e9fda093 2304 card_active_chan = a0;
ef79bbde
P		 2305 port = a0 >> 4;
2306
02949f79 2307 if (pa2) {
2308 if (port == 0) {
2309 memcpy(pa2, Mcd1Data + a1 * 128, 128);
2310 } else {
2311 memcpy(pa2, Mcd2Data + a1 * 128, 128);
2312 }
ef79bbde
P		 2313 }
2314
2315 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2316// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2317
2318 v0 = 1; pc0 = ra;
2319}
2320
2321void psxBios__new_card() { // 0x50
2322#ifdef PSXBIOS_LOG
2323 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2324#endif
2325
2326 pc0 = ra;
2327}
2328
2329void psxBios_Krom2RawAdd() { // 0x51
2330 int i = 0;
2331
2332 const u32 table_8140[][2] = {
2333 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2334 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2335 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2336 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2337 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2338 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2339 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2340 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2341 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2342 {0xffff, 0}
2343 };
2344
2345 const u32 table_889f[][2] = {
2346 {0x889f, 0x3d68}, {0x8900, 0x40ec}, {0x897f, 0x4fb0}, {0x8a00, 0x56f4},
2347 {0x8a7f, 0x65b8}, {0x8b00, 0x6cfc}, {0x8b7f, 0x7bc0}, {0x8c00, 0x8304},
2348 {0x8c7f, 0x91c8}, {0x8d00, 0x990c}, {0x8d7f, 0xa7d0}, {0x8e00, 0xaf14},
2349 {0x8e7f, 0xbdd8}, {0x8f00, 0xc51c}, {0x8f7f, 0xd3e0}, {0x9000, 0xdb24},
2350 {0x907f, 0xe9e8}, {0x9100, 0xf12c}, {0x917f, 0xfff0}, {0x9200, 0x10734},
2351 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2352 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2353 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2354 {0xffff, 0}
2355 };
2356
2357 if (a0 >= 0x8140 && a0 <= 0x84be) {
2358 while (table_8140[i][0] <= a0) i++;
2359 a0 -= table_8140[i - 1][0];
2360 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2361 } else if (a0 >= 0x889f && a0 <= 0x9872) {
2362 while (table_889f[i][0] <= a0) i++;
2363 a0 -= table_889f[i - 1][0];
2364 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2365 } else {
2366 v0 = 0xffffffff;
2367 }
2368
2369 pc0 = ra;
2370}
2371
2372void psxBios_GetC0Table() { // 56
2373#ifdef PSXBIOS_LOG
2374 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2375#endif
2376
2377 v0 = 0x674; pc0 = ra;
2378}
2379
2380void psxBios_GetB0Table() { // 57
2381#ifdef PSXBIOS_LOG
2382 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2383#endif
2384
2385 v0 = 0x874; pc0 = ra;
2386}
2387
e9fda093 2388void psxBios__card_chan() { // 0x58
2389#ifdef PSXBIOS_LOG
2390 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2391#endif
2392
2393 v0 = card_active_chan;
2394 pc0 = ra;
2395}
2396
ef79bbde
P		 2397void psxBios_ChangeClearPad() { // 5b
2398#ifdef PSXBIOS_LOG
2399 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2400#endif
2401
2402 pc0 = ra;
2403}
2404
2405/* System calls C0 */
2406
2407/*
2408 * int SysEnqIntRP(int index , long *queue);
2409 */
2410
2411void psxBios_SysEnqIntRP() { // 02
2412#ifdef PSXBIOS_LOG
2413 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2414#endif
2415
2416 SysIntRP[a0] = a1;
2417
2418 v0 = 0; pc0 = ra;
2419}
2420
2421/*
2422 * int SysDeqIntRP(int index , long *queue);
2423 */
2424
2425void psxBios_SysDeqIntRP() { // 03
2426#ifdef PSXBIOS_LOG
2427 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2428#endif
2429
2430 SysIntRP[a0] = 0;
2431
2432 v0 = 0; pc0 = ra;
2433}
2434
2435void psxBios_ChangeClearRCnt() { // 0a
2436 u32 *ptr;
2437
2438#ifdef PSXBIOS_LOG
2439 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2440#endif
2441
2442 ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2443 v0 = *ptr;
2444 *ptr = a1;
2445
2446// psxRegs.CP0.n.Status|= 0x404;
2447 pc0 = ra;
2448}
2449
2450void psxBios_dummy() {
2451#ifdef PSXBIOS_LOG
2452 PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2453#endif
2454 pc0 = ra;
2455}
2456
2457void (*biosA0[256])();
2458void (*biosB0[256])();
2459void (*biosC0[256])();
2460
2461#include "sjisfont.h"
2462
2463void psxBiosInit() {
2464 u32 base, size;
2465 u32 *ptr;
2466 int i;
2467 uLongf len;
2468
2469 for(i = 0; i < 256; i++) {
2470 biosA0[i] = NULL;
2471 biosB0[i] = NULL;
2472 biosC0[i] = NULL;
2473 }
2474 biosA0[0x3e] = psxBios_puts;
2475 biosA0[0x3f] = psxBios_printf;
2476
2477 biosB0[0x3d] = psxBios_putchar;
2478 biosB0[0x3f] = psxBios_puts;
2479
2480 if (!Config.HLE) return;
2481
2482 for(i = 0; i < 256; i++) {
2483 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2484 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2485 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2486 }
2487
2488 biosA0[0x00] = psxBios_open;
2489 biosA0[0x01] = psxBios_lseek;
2490 biosA0[0x02] = psxBios_read;
2491 biosA0[0x03] = psxBios_write;
2492 biosA0[0x04] = psxBios_close;
2493 //biosA0[0x05] = psxBios_ioctl;
2494 //biosA0[0x06] = psxBios_exit;
2495 //biosA0[0x07] = psxBios_sys_a0_07;
324cec89 2496 biosA0[0x08] = psxBios_getc;
2497 biosA0[0x09] = psxBios_putc;
ba11675c 2498 biosA0[0x0a] = psxBios_todigit;
ef79bbde
P		 2499 //biosA0[0x0b] = psxBios_atof;
2500 //biosA0[0x0c] = psxBios_strtoul;
2501 //biosA0[0x0d] = psxBios_strtol;
2502 biosA0[0x0e] = psxBios_abs;
2503 biosA0[0x0f] = psxBios_labs;
2504 biosA0[0x10] = psxBios_atoi;
2505 biosA0[0x11] = psxBios_atol;
2506 //biosA0[0x12] = psxBios_atob;
2507 biosA0[0x13] = psxBios_setjmp;
2508 biosA0[0x14] = psxBios_longjmp;
2509 biosA0[0x15] = psxBios_strcat;
2510 biosA0[0x16] = psxBios_strncat;
2511 biosA0[0x17] = psxBios_strcmp;
2512 biosA0[0x18] = psxBios_strncmp;
2513 biosA0[0x19] = psxBios_strcpy;
2514 biosA0[0x1a] = psxBios_strncpy;
2515 biosA0[0x1b] = psxBios_strlen;
2516 biosA0[0x1c] = psxBios_index;
2517 biosA0[0x1d] = psxBios_rindex;
2518 biosA0[0x1e] = psxBios_strchr;
2519 biosA0[0x1f] = psxBios_strrchr;
2520 biosA0[0x20] = psxBios_strpbrk;
2521 biosA0[0x21] = psxBios_strspn;
2522 biosA0[0x22] = psxBios_strcspn;
2523 biosA0[0x23] = psxBios_strtok;
2524 biosA0[0x24] = psxBios_strstr;
2525 biosA0[0x25] = psxBios_toupper;
2526 biosA0[0x26] = psxBios_tolower;
2527 biosA0[0x27] = psxBios_bcopy;
2528 biosA0[0x28] = psxBios_bzero;
2529 biosA0[0x29] = psxBios_bcmp;
2530 biosA0[0x2a] = psxBios_memcpy;
2531 biosA0[0x2b] = psxBios_memset;
2532 biosA0[0x2c] = psxBios_memmove;
2533 biosA0[0x2d] = psxBios_memcmp;
2534 biosA0[0x2e] = psxBios_memchr;
2535 biosA0[0x2f] = psxBios_rand;
2536 biosA0[0x30] = psxBios_srand;
2537 biosA0[0x31] = psxBios_qsort;
2538 //biosA0[0x32] = psxBios_strtod;
2539 biosA0[0x33] = psxBios_malloc;
2540 biosA0[0x34] = psxBios_free;
2541 //biosA0[0x35] = psxBios_lsearch;
2542 //biosA0[0x36] = psxBios_bsearch;
2543 biosA0[0x37] = psxBios_calloc;
2544 biosA0[0x38] = psxBios_realloc;
2545 biosA0[0x39] = psxBios_InitHeap;
2546 //biosA0[0x3a] = psxBios__exit;
2547 biosA0[0x3b] = psxBios_getchar;
2548 biosA0[0x3c] = psxBios_putchar;
2549 //biosA0[0x3d] = psxBios_gets;
2550 //biosA0[0x40] = psxBios_sys_a0_40;
2551 //biosA0[0x41] = psxBios_LoadTest;
2552 biosA0[0x42] = psxBios_Load;
2553 biosA0[0x43] = psxBios_Exec;
2554 biosA0[0x44] = psxBios_FlushCache;
2555 //biosA0[0x45] = psxBios_InstallInterruptHandler;
2556 biosA0[0x46] = psxBios_GPU_dw;
2557 biosA0[0x47] = psxBios_mem2vram;
2558 biosA0[0x48] = psxBios_SendGPU;
2559 biosA0[0x49] = psxBios_GPU_cw;
2560 biosA0[0x4a] = psxBios_GPU_cwb;
2561 biosA0[0x4b] = psxBios_GPU_SendPackets;
2562 biosA0[0x4c] = psxBios_sys_a0_4c;
2563 biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2564 //biosA0[0x4e] = psxBios_GPU_sync;
2565 //biosA0[0x4f] = psxBios_sys_a0_4f;
2566 //biosA0[0x50] = psxBios_sys_a0_50;
2567 biosA0[0x51] = psxBios_LoadExec;
2568 //biosA0[0x52] = psxBios_GetSysSp;
2569 //biosA0[0x53] = psxBios_sys_a0_53;
2570 //biosA0[0x54] = psxBios__96_init_a54;
2571 //biosA0[0x55] = psxBios__bu_init_a55;
2572 //biosA0[0x56] = psxBios__96_remove_a56;
2573 //biosA0[0x57] = psxBios_sys_a0_57;
2574 //biosA0[0x58] = psxBios_sys_a0_58;
2575 //biosA0[0x59] = psxBios_sys_a0_59;
2576 //biosA0[0x5a] = psxBios_sys_a0_5a;
2577 //biosA0[0x5b] = psxBios_dev_tty_init;
2578 //biosA0[0x5c] = psxBios_dev_tty_open;
2579 //biosA0[0x5d] = psxBios_sys_a0_5d;
2580 //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2581 //biosA0[0x5f] = psxBios_dev_cd_open;
2582 //biosA0[0x60] = psxBios_dev_cd_read;
2583 //biosA0[0x61] = psxBios_dev_cd_close;
2584 //biosA0[0x62] = psxBios_dev_cd_firstfile;
2585 //biosA0[0x63] = psxBios_dev_cd_nextfile;
2586 //biosA0[0x64] = psxBios_dev_cd_chdir;
2587 //biosA0[0x65] = psxBios_dev_card_open;
2588 //biosA0[0x66] = psxBios_dev_card_read;
2589 //biosA0[0x67] = psxBios_dev_card_write;
2590 //biosA0[0x68] = psxBios_dev_card_close;
2591 //biosA0[0x69] = psxBios_dev_card_firstfile;
2592 //biosA0[0x6a] = psxBios_dev_card_nextfile;
2593 //biosA0[0x6b] = psxBios_dev_card_erase;
2594 //biosA0[0x6c] = psxBios_dev_card_undelete;
2595 //biosA0[0x6d] = psxBios_dev_card_format;
2596 //biosA0[0x6e] = psxBios_dev_card_rename;
2597 //biosA0[0x6f] = psxBios_dev_card_6f;
2598 biosA0[0x70] = psxBios__bu_init;
2599 biosA0[0x71] = psxBios__96_init;
2600 biosA0[0x72] = psxBios__96_remove;
2601 //biosA0[0x73] = psxBios_sys_a0_73;
2602 //biosA0[0x74] = psxBios_sys_a0_74;
2603 //biosA0[0x75] = psxBios_sys_a0_75;
2604 //biosA0[0x76] = psxBios_sys_a0_76;
2605 //biosA0[0x77] = psxBios_sys_a0_77;
2606 //biosA0[0x78] = psxBios__96_CdSeekL;
2607 //biosA0[0x79] = psxBios_sys_a0_79;
2608 //biosA0[0x7a] = psxBios_sys_a0_7a;
2609 //biosA0[0x7b] = psxBios_sys_a0_7b;
2610 //biosA0[0x7c] = psxBios__96_CdGetStatus;
2611 //biosA0[0x7d] = psxBios_sys_a0_7d;
2612 //biosA0[0x7e] = psxBios__96_CdRead;
2613 //biosA0[0x7f] = psxBios_sys_a0_7f;
2614 //biosA0[0x80] = psxBios_sys_a0_80;
2615 //biosA0[0x81] = psxBios_sys_a0_81;
2616 //biosA0[0x82] = psxBios_sys_a0_82;
2617 //biosA0[0x83] = psxBios_sys_a0_83;
2618 //biosA0[0x84] = psxBios_sys_a0_84;
2619 //biosA0[0x85] = psxBios__96_CdStop;
2620 //biosA0[0x86] = psxBios_sys_a0_86;
2621 //biosA0[0x87] = psxBios_sys_a0_87;
2622 //biosA0[0x88] = psxBios_sys_a0_88;
2623 //biosA0[0x89] = psxBios_sys_a0_89;
2624 //biosA0[0x8a] = psxBios_sys_a0_8a;
2625 //biosA0[0x8b] = psxBios_sys_a0_8b;
2626 //biosA0[0x8c] = psxBios_sys_a0_8c;
2627 //biosA0[0x8d] = psxBios_sys_a0_8d;
2628 //biosA0[0x8e] = psxBios_sys_a0_8e;
2629 //biosA0[0x8f] = psxBios_sys_a0_8f;
2630 //biosA0[0x90] = psxBios_sys_a0_90;
2631 //biosA0[0x91] = psxBios_sys_a0_91;
2632 //biosA0[0x92] = psxBios_sys_a0_92;
2633 //biosA0[0x93] = psxBios_sys_a0_93;
2634 //biosA0[0x94] = psxBios_sys_a0_94;
2635 //biosA0[0x95] = psxBios_sys_a0_95;
2636 //biosA0[0x96] = psxBios_AddCDROMDevice;
2637 //biosA0[0x97] = psxBios_AddMemCardDevide;
2638 //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2639 //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2640 //biosA0[0x9a] = psxBios_sys_a0_9a;
2641 //biosA0[0x9b] = psxBios_sys_a0_9b;
2642 //biosA0[0x9c] = psxBios_SetConf;
2643 //biosA0[0x9d] = psxBios_GetConf;
2644 //biosA0[0x9e] = psxBios_sys_a0_9e;
2645 biosA0[0x9f] = psxBios_SetMem;
2646 //biosA0[0xa0] = psxBios__boot;
2647 //biosA0[0xa1] = psxBios_SystemError;
2648 //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2649 //biosA0[0xa3] = psxBios_DequeueCdIntr;
2650 //biosA0[0xa4] = psxBios_sys_a0_a4;
2651 //biosA0[0xa5] = psxBios_ReadSector;
2652 //biosA0[0xa6] = psxBios_get_cd_status;
2653 //biosA0[0xa7] = psxBios_bufs_cb_0;
2654 //biosA0[0xa8] = psxBios_bufs_cb_1;
2655 //biosA0[0xa9] = psxBios_bufs_cb_2;
2656 //biosA0[0xaa] = psxBios_bufs_cb_3;
2657 biosA0[0xab] = psxBios__card_info;
2658 biosA0[0xac] = psxBios__card_load;
2659 //biosA0[0axd] = psxBios__card_auto;
2660 //biosA0[0xae] = psxBios_bufs_cd_4;
2661 //biosA0[0xaf] = psxBios_sys_a0_af;
2662 //biosA0[0xb0] = psxBios_sys_a0_b0;
2663 //biosA0[0xb1] = psxBios_sys_a0_b1;
2664 //biosA0[0xb2] = psxBios_do_a_long_jmp
2665 //biosA0[0xb3] = psxBios_sys_a0_b3;
2666 //biosA0[0xb4] = psxBios_sub_function;
2667//*******************B0 CALLS****************************
2668 //biosB0[0x00] = psxBios_SysMalloc;
2669 //biosB0[0x01] = psxBios_sys_b0_01;
2670 biosB0[0x02] = psxBios_SetRCnt;
2671 biosB0[0x03] = psxBios_GetRCnt;
2672 biosB0[0x04] = psxBios_StartRCnt;
2673 biosB0[0x05] = psxBios_StopRCnt;
2674 biosB0[0x06] = psxBios_ResetRCnt;
2675 biosB0[0x07] = psxBios_DeliverEvent;
2676 biosB0[0x08] = psxBios_OpenEvent;
2677 biosB0[0x09] = psxBios_CloseEvent;
2678 biosB0[0x0a] = psxBios_WaitEvent;
2679 biosB0[0x0b] = psxBios_TestEvent;
2680 biosB0[0x0c] = psxBios_EnableEvent;
2681 biosB0[0x0d] = psxBios_DisableEvent;
2682 biosB0[0x0e] = psxBios_OpenTh;
2683 biosB0[0x0f] = psxBios_CloseTh;
2684 biosB0[0x10] = psxBios_ChangeTh;
2685 //biosB0[0x11] = psxBios_psxBios_b0_11;
2686 biosB0[0x12] = psxBios_InitPAD;
2687 biosB0[0x13] = psxBios_StartPAD;
2688 biosB0[0x14] = psxBios_StopPAD;
2689 biosB0[0x15] = psxBios_PAD_init;
2690 biosB0[0x16] = psxBios_PAD_dr;
2691 biosB0[0x17] = psxBios_ReturnFromException;
2692 biosB0[0x18] = psxBios_ResetEntryInt;
2693 biosB0[0x19] = psxBios_HookEntryInt;
2694 //biosB0[0x1a] = psxBios_sys_b0_1a;
2695 //biosB0[0x1b] = psxBios_sys_b0_1b;
2696 //biosB0[0x1c] = psxBios_sys_b0_1c;
2697 //biosB0[0x1d] = psxBios_sys_b0_1d;
2698 //biosB0[0x1e] = psxBios_sys_b0_1e;
2699 //biosB0[0x1f] = psxBios_sys_b0_1f;
2700 biosB0[0x20] = psxBios_UnDeliverEvent;
2701 //biosB0[0x21] = psxBios_sys_b0_21;
2702 //biosB0[0x22] = psxBios_sys_b0_22;
2703 //biosB0[0x23] = psxBios_sys_b0_23;
2704 //biosB0[0x24] = psxBios_sys_b0_24;
2705 //biosB0[0x25] = psxBios_sys_b0_25;
2706 //biosB0[0x26] = psxBios_sys_b0_26;
2707 //biosB0[0x27] = psxBios_sys_b0_27;
2708 //biosB0[0x28] = psxBios_sys_b0_28;
2709 //biosB0[0x29] = psxBios_sys_b0_29;
2710 //biosB0[0x2a] = psxBios_sys_b0_2a;
2711 //biosB0[0x2b] = psxBios_sys_b0_2b;
2712 //biosB0[0x2c] = psxBios_sys_b0_2c;
2713 //biosB0[0x2d] = psxBios_sys_b0_2d;
2714 //biosB0[0x2e] = psxBios_sys_b0_2e;
2715 //biosB0[0x2f] = psxBios_sys_b0_2f;
2716 //biosB0[0x30] = psxBios_sys_b0_30;
2717 //biosB0[0x31] = psxBios_sys_b0_31;
2718 biosB0[0x32] = psxBios_open;
2719 biosB0[0x33] = psxBios_lseek;
2720 biosB0[0x34] = psxBios_read;
2721 biosB0[0x35] = psxBios_write;
2722 biosB0[0x36] = psxBios_close;
2723 //biosB0[0x37] = psxBios_ioctl;
2724 //biosB0[0x38] = psxBios_exit;
2725 //biosB0[0x39] = psxBios_sys_b0_39;
2726 //biosB0[0x3a] = psxBios_getc;
2727 //biosB0[0x3b] = psxBios_putc;
2728 biosB0[0x3c] = psxBios_getchar;
2729 //biosB0[0x3e] = psxBios_gets;
2730 //biosB0[0x40] = psxBios_cd;
e7e1f572 2731 biosB0[0x41] = psxBios_format;
ef79bbde
P		 2732 biosB0[0x42] = psxBios_firstfile;
2733 biosB0[0x43] = psxBios_nextfile;
2734 biosB0[0x44] = psxBios_rename;
2735 biosB0[0x45] = psxBios_delete;
2736 //biosB0[0x46] = psxBios_undelete;
2737 //biosB0[0x47] = psxBios_AddDevice;
2738 //biosB0[0x48] = psxBios_RemoteDevice;
2739 //biosB0[0x49] = psxBios_PrintInstalledDevices;
2740 biosB0[0x4a] = psxBios_InitCARD;
2741 biosB0[0x4b] = psxBios_StartCARD;
2742 biosB0[0x4c] = psxBios_StopCARD;
2743 //biosB0[0x4d] = psxBios_sys_b0_4d;
2744 biosB0[0x4e] = psxBios__card_write;
2745 biosB0[0x4f] = psxBios__card_read;
2746 biosB0[0x50] = psxBios__new_card;
2747 biosB0[0x51] = psxBios_Krom2RawAdd;
2748 //biosB0[0x52] = psxBios_sys_b0_52;
2749 //biosB0[0x53] = psxBios_sys_b0_53;
2750 //biosB0[0x54] = psxBios__get_errno;
2751 //biosB0[0x55] = psxBios__get_error;
2752 biosB0[0x56] = psxBios_GetC0Table;
2753 biosB0[0x57] = psxBios_GetB0Table;
e9fda093 2754 biosB0[0x58] = psxBios__card_chan;
ef79bbde
P		 2755 //biosB0[0x59] = psxBios_sys_b0_59;
2756 //biosB0[0x5a] = psxBios_sys_b0_5a;
2757 biosB0[0x5b] = psxBios_ChangeClearPad;
2758 //biosB0[0x5c] = psxBios__card_status;
2759 //biosB0[0x5d] = psxBios__card_wait;
2760//*******************C0 CALLS****************************
2761 //biosC0[0x00] = psxBios_InitRCnt;
2762 //biosC0[0x01] = psxBios_InitException;
2763 biosC0[0x02] = psxBios_SysEnqIntRP;
2764 biosC0[0x03] = psxBios_SysDeqIntRP;
2765 //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2766 //biosC0[0x05] = psxBios_get_free_TCB_slot;
2767 //biosC0[0x06] = psxBios_ExceptionHandler;
2768 //biosC0[0x07] = psxBios_InstallExeptionHandler;
2769 //biosC0[0x08] = psxBios_SysInitMemory;
2770 //biosC0[0x09] = psxBios_SysInitKMem;
2771 biosC0[0x0a] = psxBios_ChangeClearRCnt;
2772 //biosC0[0x0b] = psxBios_SystemError;
2773 //biosC0[0x0c] = psxBios_InitDefInt;
2774 //biosC0[0x0d] = psxBios_sys_c0_0d;
2775 //biosC0[0x0e] = psxBios_sys_c0_0e;
2776 //biosC0[0x0f] = psxBios_sys_c0_0f;
2777 //biosC0[0x10] = psxBios_sys_c0_10;
2778 //biosC0[0x11] = psxBios_sys_c0_11;
2779 //biosC0[0x12] = psxBios_InstallDevices;
2780 //biosC0[0x13] = psxBios_FlushStfInOutPut;
2781 //biosC0[0x14] = psxBios_sys_c0_14;
2782 //biosC0[0x15] = psxBios__cdevinput;
2783 //biosC0[0x16] = psxBios__cdevscan;
2784 //biosC0[0x17] = psxBios__circgetc;
2785 //biosC0[0x18] = psxBios__circputc;
2786 //biosC0[0x19] = psxBios_ioabort;
2787 //biosC0[0x1a] = psxBios_sys_c0_1a
2788 //biosC0[0x1b] = psxBios_KernelRedirect;
2789 //biosC0[0x1c] = psxBios_PatchAOTable;
2790//************** THE END ***************************************
2791/**/
2792 base = 0x1000;
2793 size = sizeof(EvCB) * 32;
2794 Event = (void *)&psxR[base]; base += size * 6;
2795 memset(Event, 0, size * 6);
2796 HwEV = Event;
2797 EvEV = Event + 32;
2798 RcEV = Event + 32 * 2;
2799 UeEV = Event + 32 * 3;
2800 SwEV = Event + 32 * 4;
2801 ThEV = Event + 32 * 5;
2802
2803 ptr = (u32 *)&psxM[0x0874]; // b0 table
2804 ptr[0] = SWAPu32(0x4c54 - 0x884);
2805
2806 ptr = (u32 *)&psxM[0x0674]; // c0 table
2807 ptr[6] = SWAPu32(0xc80);
2808
2809 memset(SysIntRP, 0, sizeof(SysIntRP));
2810 memset(Thread, 0, sizeof(Thread));
2811 Thread[0].status = 2; // main thread
2812
c62b43c9 2813 jmp_int = NULL;
2814 pad_buf = NULL;
2815 pad_buf1 = NULL;
2816 pad_buf2 = NULL;
2817 pad_buf1len = pad_buf2len = 0;
2818 heap_addr = NULL;
2819 heap_end = NULL;
2820 CardState = -1;
2821 CurThread = 0;
2822 memset(FDesc, 0, sizeof(FDesc));
2823
ef79bbde
P		 2824 psxMu32ref(0x0150) = SWAPu32(0x160);
2825 psxMu32ref(0x0154) = SWAPu32(0x320);
2826 psxMu32ref(0x0160) = SWAPu32(0x248);
2827 strcpy((char *)&psxM[0x248], "bu");
2828/* psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
2829 psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
2830 psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
2831 psxMu32ref(0x09e0) = SWAPu32(0x43d0);
2832 psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
2833*/
2834 // opcode HLE
2835 psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
2836 psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
2837 psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
2838 psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
2839 psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
2840 psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
2841 psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
2842 psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
2843 psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
2844 psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
2845
2846 // initial stack pointer for BIOS interrupt
2847 psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
2848
2849 // initial RNG seed
2850 psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
2851
2852 // fonts
2853 len = 0x80000 - 0x66000;
2854 uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
2855 len = 0x80000 - 0x69d68;
2856 uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
2857
2858 // memory size 2 MB
2859 psxHu32ref(0x1060) = SWAPu32(0x00000b88);
2860
2861 hleSoftCall = FALSE;
2862}
2863
2864void psxBiosShutdown() {
2865}
2866
2867#define psxBios_PADpoll(pad) { \
2868 PAD##pad##_startPoll(pad); \
2869 pad_buf##pad[0] = 0; \
2870 pad_buf##pad[1] = PAD##pad##_poll(0x42); \
2871 if (!(pad_buf##pad[1] & 0x0f)) { \
2872 bufcount = 32; \
2873 } else { \
2874 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
2875 } \
2876 PAD##pad##_poll(0); \
2877 i = 2; \
2878 while (bufcount--) { \
2879 pad_buf##pad[i++] = PAD##pad##_poll(0); \
2880 } \
2881}
2882
2883void biosInterrupt() {
2884 int i, bufcount;
2885
2886// if (psxHu32(0x1070) & 0x1) { // Vsync
2887 if (pad_buf != NULL) {
2888 u32 *buf = (u32*)pad_buf;
2889
2890 if (!Config.UseNet) {
2891 PAD1_startPoll(1);
2892 if (PAD1_poll(0x42) == 0x23) {
2893 PAD1_poll(0);
2894 *buf = PAD1_poll(0) << 8;
2895 *buf |= PAD1_poll(0);
2896 PAD1_poll(0);
2897 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
2898 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
2899 } else {
2900 PAD1_poll(0);
2901 *buf = PAD1_poll(0) << 8;
2902 *buf|= PAD1_poll(0);
2903 }
2904
2905 PAD2_startPoll(2);
2906 if (PAD2_poll(0x42) == 0x23) {
2907 PAD2_poll(0);
2908 *buf |= PAD2_poll(0) << 24;
2909 *buf |= PAD2_poll(0) << 16;
2910 PAD2_poll(0);
2911 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
2912 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
2913 } else {
2914 PAD2_poll(0);
2915 *buf |= PAD2_poll(0) << 24;
2916 *buf |= PAD2_poll(0) << 16;
2917 }
2918 } else {
2919 u16 data;
2920
2921 PAD1_startPoll(1);
2922 PAD1_poll(0x42);
2923 PAD1_poll(0);
2924 data = PAD1_poll(0) << 8;
2925 data |= PAD1_poll(0);
2926
2927 if (NET_sendPadData(&data, 2) == -1)
2928 netError();
2929
2930 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
2931 netError();
2932 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
2933 netError();
2934 }
2935 }
2936 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
2937 psxBios_PADpoll(1);
2938
2939 if (NET_sendPadData(pad_buf1, i) == -1)
2940 netError();
2941
2942 if (NET_recvPadData(pad_buf1, 1) == -1)
2943 netError();
2944 if (NET_recvPadData(pad_buf2, 2) == -1)
2945 netError();
2946 } else {
2947 if (pad_buf1) {
2948 psxBios_PADpoll(1);
2949 }
2950
2951 if (pad_buf2) {
2952 psxBios_PADpoll(2);
2953 }
2954 }
2955
2956 if (psxHu32(0x1070) & 0x1) { // Vsync
2957 if (RcEV[3][1].status == EvStACTIVE) {
2958 softCall(RcEV[3][1].fhandler);
2959// hwWrite32(0x1f801070, ~(1));
2960 }
2961 }
2962
2963 if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
2964 int i;
2965
2966 for (i = 0; i < 3; i++) {
2967 if (psxHu32(0x1070) & (1 << (i + 4))) {
2968 if (RcEV[i][1].status == EvStACTIVE) {
2969 softCall(RcEV[i][1].fhandler);
2970 }
2971 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
2972 }
2973 }
2974 }
2975}
2976
2977void psxBiosException() {
2978 int i;
2979
2980 switch (psxRegs.CP0.n.Cause & 0x3c) {
2981 case 0x00: // Interrupt
2982#ifdef PSXCPU_LOG
2983// PSXCPU_LOG("interrupt\n");
2984#endif
2985 SaveRegs();
2986
2987 sp = psxMu32(0x6c80); // create new stack for interrupt handlers
2988
2989 biosInterrupt();
2990
2991 for (i = 0; i < 8; i++) {
2992 if (SysIntRP[i]) {
2993 u32 *queue = (u32 *)PSXM(SysIntRP[i]);
2994
2995 s0 = queue[2];
2996 softCall(queue[1]);
2997 }
2998 }
2999
3000 if (jmp_int != NULL) {
3001 int i;
3002
3003 psxHwWrite32(0x1f801070, 0xffffffff);
3004
3005 ra = jmp_int[0];
3006 sp = jmp_int[1];
3007 fp = jmp_int[2];
3008 for (i = 0; i < 8; i++) // s0-s7
3009 psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3010 gp = jmp_int[11];
3011
3012 v0 = 1;
3013 pc0 = ra;
3014 return;
3015 }
3016 psxHwWrite16(0x1f801070, 0);
3017 break;
3018
3019 case 0x20: // Syscall
3020#ifdef PSXCPU_LOG
3021 PSXCPU_LOG("syscall exp %x\n", a0);
3022#endif
3023 switch (a0) {
3024 case 1: // EnterCritical - disable irq's
79dad1b3 3025 /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3026 v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3027 psxRegs.CP0.n.Status &= ~0x404;
ef79bbde
P		 3028 break;
3029
3030 case 2: // ExitCritical - enable irq's
3031 psxRegs.CP0.n.Status |= 0x404;
3032 break;
3033 }
3034 pc0 = psxRegs.CP0.n.EPC + 4;
3035
3036 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3037 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3038 return;
3039
3040 default:
3041#ifdef PSXCPU_LOG
3042 PSXCPU_LOG("unknown bios exception!\n");
3043#endif
3044 break;
3045 }
3046
3047 pc0 = psxRegs.CP0.n.EPC;
3048 if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3049
3050 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3051 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3052}
3053
3054#define bfreeze(ptr, size) { \
3055 if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3056 if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3057 base += size; \
3058}
3059
3060#define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3061#define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3062
3063#define bfreezepsxMptr(ptr, type) { \
3064 if (Mode == 1) { \
3065 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3066 else psxRu32ref(base) = 0; \
3067 } else { \
3068 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3069 else (ptr) = NULL; \
3070 } \
3071 base += sizeof(u32); \
3072}
3073
3074void psxBiosFreeze(int Mode) {
3075 u32 base = 0x40000;
3076
3077 bfreezepsxMptr(jmp_int, u32);
3078 bfreezepsxMptr(pad_buf, int);
3079 bfreezepsxMptr(pad_buf1, char);
3080 bfreezepsxMptr(pad_buf2, char);
3081 bfreezepsxMptr(heap_addr, u32);
3082 bfreezel(&pad_buf1len);
3083 bfreezel(&pad_buf2len);
3084 bfreezes(regs);
3085 bfreezes(SysIntRP);
3086 bfreezel(&CardState);
3087 bfreezes(Thread);
3088 bfreezel(&CurThread);
3089 bfreezes(FDesc);
e9fda093 3090 bfreezel(&card_active_chan);
ef79bbde 3091}
ARM optimized PCSX fork