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psxbios : Fix a few mistakes :
[pcsx_rearmed.git] / libpcsxcore / psxbios.c
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ef79bbde 1/***************************************************************************
8254b5a7 2 * Copyright (C) 2019 Ryan Schultz, PCSX-df Team, PCSX team, gameblabla, *
3 * dmitrysmagin, senquack *
ef79bbde
P		 4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. *
19 ***************************************************************************/
20
8254b5a7 21/* Gameblabla 2018-2019 :
22 * Numerous changes to bios calls as well as improvements in order to conform to nocash's findings
23 * for the PSX bios calls. Thanks senquack for helping out with some of the changes
24 * and helping to spot issues and refine my patches.
25 * */
26
ef79bbde
P		 27/*
28 * Internal simulated HLE BIOS.
29 */
30
31// TODO: implement all system calls, count the exact CPU cycles of system calls.
32
33#include "psxbios.h"
34#include "psxhw.h"
ddbaf678 35#include "gpu.h"
496d88d4 36#include <zlib.h>
ef79bbde 37
452b85f9 38#undef SysPrintf
39#define SysPrintf if (Config.PsxOut) printf
40
ef79bbde
P		 41char *biosA0n[256] = {
42// 0x00
43 "open", "lseek", "read", "write",
44 "close", "ioctl", "exit", "sys_a0_07",
45 "getc", "putc", "todigit", "atof",
46 "strtoul", "strtol", "abs", "labs",
47// 0x10
48 "atoi", "atol", "atob", "setjmp",
49 "longjmp", "strcat", "strncat", "strcmp",
50 "strncmp", "strcpy", "strncpy", "strlen",
51 "index", "rindex", "strchr", "strrchr",
52// 0x20
53 "strpbrk", "strspn", "strcspn", "strtok",
54 "strstr", "toupper", "tolower", "bcopy",
55 "bzero", "bcmp", "memcpy", "memset",
56 "memmove", "memcmp", "memchr", "rand",
57// 0x30
58 "srand", "qsort", "strtod", "malloc",
59 "free", "lsearch", "bsearch", "calloc",
60 "realloc", "InitHeap", "_exit", "getchar",
61 "putchar", "gets", "puts", "printf",
62// 0x40
63 "sys_a0_40", "LoadTest", "Load", "Exec",
64 "FlushCache", "InstallInterruptHandler", "GPU_dw", "mem2vram",
65 "SendGPUStatus", "GPU_cw", "GPU_cwb", "SendPackets",
66 "sys_a0_4c", "GetGPUStatus", "GPU_sync", "sys_a0_4f",
67// 0x50
68 "sys_a0_50", "LoadExec", "GetSysSp", "sys_a0_53",
69 "_96_init()", "_bu_init()", "_96_remove()", "sys_a0_57",
70 "sys_a0_58", "sys_a0_59", "sys_a0_5a", "dev_tty_init",
71 "dev_tty_open", "sys_a0_5d", "dev_tty_ioctl","dev_cd_open",
72// 0x60
73 "dev_cd_read", "dev_cd_close", "dev_cd_firstfile", "dev_cd_nextfile",
74 "dev_cd_chdir", "dev_card_open", "dev_card_read", "dev_card_write",
75 "dev_card_close", "dev_card_firstfile", "dev_card_nextfile","dev_card_erase",
76 "dev_card_undelete","dev_card_format", "dev_card_rename", "dev_card_6f",
77// 0x70
78 "_bu_init", "_96_init", "_96_remove", "sys_a0_73",
79 "sys_a0_74", "sys_a0_75", "sys_a0_76", "sys_a0_77",
80 "_96_CdSeekL", "sys_a0_79", "sys_a0_7a", "sys_a0_7b",
81 "_96_CdGetStatus", "sys_a0_7d", "_96_CdRead", "sys_a0_7f",
82// 0x80
83 "sys_a0_80", "sys_a0_81", "sys_a0_82", "sys_a0_83",
84 "sys_a0_84", "_96_CdStop", "sys_a0_86", "sys_a0_87",
85 "sys_a0_88", "sys_a0_89", "sys_a0_8a", "sys_a0_8b",
86 "sys_a0_8c", "sys_a0_8d", "sys_a0_8e", "sys_a0_8f",
87// 0x90
88 "sys_a0_90", "sys_a0_91", "sys_a0_92", "sys_a0_93",
89 "sys_a0_94", "sys_a0_95", "AddCDROMDevice", "AddMemCardDevide",
90 "DisableKernelIORedirection", "EnableKernelIORedirection", "sys_a0_9a", "sys_a0_9b",
91 "SetConf", "GetConf", "sys_a0_9e", "SetMem",
92// 0xa0
93 "_boot", "SystemError", "EnqueueCdIntr", "DequeueCdIntr",
94 "sys_a0_a4", "ReadSector", "get_cd_status", "bufs_cb_0",
95 "bufs_cb_1", "bufs_cb_2", "bufs_cb_3", "_card_info",
96 "_card_load", "_card_auto", "bufs_cd_4", "sys_a0_af",
97// 0xb0
98 "sys_a0_b0", "sys_a0_b1", "do_a_long_jmp", "sys_a0_b3",
99 "?? sub_function",
100};
101
102char *biosB0n[256] = {
103// 0x00
104 "SysMalloc", "sys_b0_01", "sys_b0_02", "sys_b0_03",
105 "sys_b0_04", "sys_b0_05", "sys_b0_06", "DeliverEvent",
106 "OpenEvent", "CloseEvent", "WaitEvent", "TestEvent",
107 "EnableEvent", "DisableEvent", "OpenTh", "CloseTh",
108// 0x10
109 "ChangeTh", "sys_b0_11", "InitPAD", "StartPAD",
110 "StopPAD", "PAD_init", "PAD_dr", "ReturnFromExecption",
111 "ResetEntryInt", "HookEntryInt", "sys_b0_1a", "sys_b0_1b",
112 "sys_b0_1c", "sys_b0_1d", "sys_b0_1e", "sys_b0_1f",
113// 0x20
114 "UnDeliverEvent", "sys_b0_21", "sys_b0_22", "sys_b0_23",
115 "sys_b0_24", "sys_b0_25", "sys_b0_26", "sys_b0_27",
116 "sys_b0_28", "sys_b0_29", "sys_b0_2a", "sys_b0_2b",
117 "sys_b0_2c", "sys_b0_2d", "sys_b0_2e", "sys_b0_2f",
118// 0x30
119 "sys_b0_30", "sys_b0_31", "open", "lseek",
120 "read", "write", "close", "ioctl",
121 "exit", "sys_b0_39", "getc", "putc",
122 "getchar", "putchar", "gets", "puts",
123// 0x40
124 "cd", "format", "firstfile", "nextfile",
125 "rename", "delete", "undelete", "AddDevice",
126 "RemoteDevice", "PrintInstalledDevices", "InitCARD", "StartCARD",
127 "StopCARD", "sys_b0_4d", "_card_write", "_card_read",
128// 0x50
129 "_new_card", "Krom2RawAdd", "sys_b0_52", "sys_b0_53",
130 "_get_errno", "_get_error", "GetC0Table", "GetB0Table",
131 "_card_chan", "sys_b0_59", "sys_b0_5a", "ChangeClearPAD",
132 "_card_status", "_card_wait",
133};
134
135char *biosC0n[256] = {
136// 0x00
137 "InitRCnt", "InitException", "SysEnqIntRP", "SysDeqIntRP",
138 "get_free_EvCB_slot", "get_free_TCB_slot", "ExceptionHandler", "InstallExeptionHandler",
139 "SysInitMemory", "SysInitKMem", "ChangeClearRCnt", "SystemError",
140 "InitDefInt", "sys_c0_0d", "sys_c0_0e", "sys_c0_0f",
141// 0x10
142 "sys_c0_10", "sys_c0_11", "InstallDevices", "FlushStfInOutPut",
143 "sys_c0_14", "_cdevinput", "_cdevscan", "_circgetc",
144 "_circputc", "ioabort", "sys_c0_1a", "KernelRedirect",
145 "PatchAOTable",
146};
147
148//#define r0 (psxRegs.GPR.n.r0)
149#define at (psxRegs.GPR.n.at)
150#define v0 (psxRegs.GPR.n.v0)
151#define v1 (psxRegs.GPR.n.v1)
152#define a0 (psxRegs.GPR.n.a0)
153#define a1 (psxRegs.GPR.n.a1)
154#define a2 (psxRegs.GPR.n.a2)
155#define a3 (psxRegs.GPR.n.a3)
156#define t0 (psxRegs.GPR.n.t0)
157#define t1 (psxRegs.GPR.n.t1)
158#define t2 (psxRegs.GPR.n.t2)
159#define t3 (psxRegs.GPR.n.t3)
160#define t4 (psxRegs.GPR.n.t4)
161#define t5 (psxRegs.GPR.n.t5)
162#define t6 (psxRegs.GPR.n.t6)
163#define t7 (psxRegs.GPR.n.t7)
164#define t8 (psxRegs.GPR.n.t8)
165#define t9 (psxRegs.GPR.n.t9)
166#define s0 (psxRegs.GPR.n.s0)
167#define s1 (psxRegs.GPR.n.s1)
168#define s2 (psxRegs.GPR.n.s2)
169#define s3 (psxRegs.GPR.n.s3)
170#define s4 (psxRegs.GPR.n.s4)
171#define s5 (psxRegs.GPR.n.s5)
172#define s6 (psxRegs.GPR.n.s6)
173#define s7 (psxRegs.GPR.n.s7)
174#define k0 (psxRegs.GPR.n.k0)
175#define k1 (psxRegs.GPR.n.k1)
176#define gp (psxRegs.GPR.n.gp)
177#define sp (psxRegs.GPR.n.sp)
178#define fp (psxRegs.GPR.n.s8)
179#define ra (psxRegs.GPR.n.ra)
180#define pc0 (psxRegs.pc)
181
182#define Ra0 ((char *)PSXM(a0))
183#define Ra1 ((char *)PSXM(a1))
184#define Ra2 ((char *)PSXM(a2))
185#define Ra3 ((char *)PSXM(a3))
186#define Rv0 ((char *)PSXM(v0))
187#define Rsp ((char *)PSXM(sp))
188
189typedef struct {
190 u32 desc;
191 s32 status;
192 s32 mode;
193 u32 fhandler;
194} EvCB[32];
195
196#define EvStUNUSED 0x0000
197#define EvStWAIT 0x1000
198#define EvStACTIVE 0x2000
199#define EvStALREADY 0x4000
200
201#define EvMdINTR 0x1000
202#define EvMdNOINTR 0x2000
203
204/*
205typedef struct {
206 s32 next;
207 s32 func1;
208 s32 func2;
209 s32 pad;
210} SysRPst;
211*/
212
213typedef struct {
214 s32 status;
215 s32 mode;
216 u32 reg[32];
217 u32 func;
218} TCB;
219
220typedef struct {
221 u32 _pc0;
222 u32 gp0;
223 u32 t_addr;
224 u32 t_size;
225 u32 d_addr;
226 u32 d_size;
227 u32 b_addr;
228 u32 b_size;
229 u32 S_addr;
230 u32 s_size;
231 u32 _sp, _fp, _gp, ret, base;
232} EXEC;
233
234struct DIRENTRY {
235 char name[20];
236 s32 attr;
237 s32 size;
238 u32 next;
239 s32 head;
240 char system[4];
241};
242
243typedef struct {
244 char name[32];
245 u32 mode;
246 u32 offset;
247 u32 size;
248 u32 mcfile;
249} FileDesc;
250
251static u32 *jmp_int = NULL;
252static int *pad_buf = NULL;
253static char *pad_buf1 = NULL, *pad_buf2 = NULL;
254static int pad_buf1len, pad_buf2len;
f25c285b 255static int pad_stopped = 0;
ef79bbde
P		 256
257static u32 regs[35];
258static EvCB *Event;
259static EvCB *HwEV; // 0xf0
260static EvCB *EvEV; // 0xf1
261static EvCB *RcEV; // 0xf2
262static EvCB *UeEV; // 0xf3
263static EvCB *SwEV; // 0xf4
264static EvCB *ThEV; // 0xff
26b964b5 265static u32 heap_size = 0;
ef79bbde
P		 266static u32 *heap_addr = NULL;
267static u32 *heap_end = NULL;
268static u32 SysIntRP[8];
269static int CardState = -1;
270static TCB Thread[8];
271static int CurThread = 0;
272static FileDesc FDesc[32];
e9fda093 273static u32 card_active_chan;
ef79bbde
P		 274
275boolean hleSoftCall = FALSE;
276
277static inline void softCall(u32 pc) {
278 pc0 = pc;
279 ra = 0x80001000;
280
281 hleSoftCall = TRUE;
282
283 while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
284
285 hleSoftCall = FALSE;
286}
287
288static inline void softCall2(u32 pc) {
289 u32 sra = ra;
290 pc0 = pc;
291 ra = 0x80001000;
292
293 hleSoftCall = TRUE;
294
295 while (pc0 != 0x80001000) psxCpu->ExecuteBlock();
296 ra = sra;
297
298 hleSoftCall = FALSE;
299}
300
301static inline void DeliverEvent(u32 ev, u32 spec) {
302 if (Event[ev][spec].status != EvStACTIVE) return;
303
304// Event[ev][spec].status = EvStALREADY;
305 if (Event[ev][spec].mode == EvMdINTR) {
306 softCall2(Event[ev][spec].fhandler);
307 } else Event[ev][spec].status = EvStALREADY;
308}
309
310static inline void SaveRegs() {
311 memcpy(regs, psxRegs.GPR.r, 32*4);
312 regs[32] = psxRegs.GPR.n.lo;
313 regs[33] = psxRegs.GPR.n.hi;
314 regs[34] = psxRegs.pc;
315}
316
317static inline void LoadRegs() {
318 memcpy(psxRegs.GPR.r, regs, 32*4);
319 psxRegs.GPR.n.lo = regs[32];
320 psxRegs.GPR.n.hi = regs[33];
321}
322
323/* *
324// *
325// *
326// System calls A0 */
327
d99f6068 328
329#define buread(Ra1, mcd, length) { \
330 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); \
331 ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
332 memcpy(Ra1, ptr, length); \
f1514614 333 if (FDesc[1 + mcd].mode & 0x8000) { \
d99f6068 334 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
335 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
f1514614 336 v0 = 0; } \
d99f6068 337 else v0 = length; \
338 FDesc[1 + mcd].offset += v0; \
339}
340
341#define buwrite(Ra1, mcd, length) { \
342 u32 offset = + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
343 SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
344 ptr = Mcd##mcd##Data + offset; \
345 memcpy(ptr, Ra1, length); \
f1514614 346 FDesc[1 + mcd].offset += length; \
347 if (FDesc[1 + mcd].mode & 0x8000) { \
d99f6068 348 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
349 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
f1514614 350 v0 = 0; } \
d99f6068 351 else v0 = length; \
352}
353
354
324cec89 355/* Internally redirects to "FileRead(fd,tempbuf,1)".*/
356/* For some strange reason, the returned character is sign-expanded; */
357/* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
358/* TODO FIX ME : Properly implement this behaviour */
359void psxBios_getc(void) // 0x03, 0x35
360{
d99f6068 361 char *ptr;
324cec89 362 void *pa1 = Ra1;
363#ifdef PSXBIOS_LOG
364 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
365#endif
366 v0 = -1;
367
368 if (pa1) {
369 switch (a0) {
370 case 2: buread(pa1, 1, 1); break;
371 case 3: buread(pa1, 2, 1); break;
372 }
373 }
374
375 pc0 = ra;
376}
377
378/* Copy of psxBios_write, except size is 1. */
379void psxBios_putc(void) // 0x09, 0x3B
380{
d99f6068 381 char *ptr;
324cec89 382 void *pa1 = Ra1;
383#ifdef PSXBIOS_LOG
384 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
385#endif
386 v0 = -1;
387 if (!pa1) {
388 pc0 = ra;
389 return;
390 }
391
392 if (a0 == 1) { // stdout
393 char *ptr = (char *)pa1;
394
395 v0 = a2;
396 while (a2 > 0) {
397 printf("%c", *ptr++); a2--;
398 }
399 pc0 = ra; return;
400 }
401
402 switch (a0) {
403 case 2: buwrite(pa1, 1, 1); break;
404 case 3: buwrite(pa1, 2, 1); break;
405 }
406
407 pc0 = ra;
408}
ef79bbde 409
ba11675c 410void psxBios_todigit(void) // 0x0a
411{
412 int c = a0;
413#ifdef PSXBIOS_LOG
414 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
415#endif
416 c &= 0xFF;
417 if (c >= 0x30 && c < 0x3A) {
418 c -= 0x30;
419 }
420 else if (c > 0x60 && c < 0x7B) {
421 c -= 0x20;
422 }
423 else if (c > 0x40 && c < 0x5B) {
424 c = c - 0x41 + 10;
425 }
426 else if (c >= 0x80) {
427 c = -1;
428 }
429 else
430 {
431 c = 0x0098967F;
432 }
433 v0 = c;
434 pc0 = ra;
435}
436
ef79bbde
P		 437void psxBios_abs() { // 0x0e
438 if ((s32)a0 < 0) v0 = -(s32)a0;
439 else v0 = a0;
440 pc0 = ra;
441}
442
443void psxBios_labs() { // 0x0f
444 psxBios_abs();
445}
446
447void psxBios_atoi() { // 0x10
448 s32 n = 0, f = 0;
449 char *p = (char *)Ra0;
450
451 for (;;p++) {
452 switch (*p) {
453 case ' ': case '\t': continue;
454 case '-': f++;
455 case '+': p++;
456 }
457 break;
458 }
459
460 while (*p >= '0' && *p <= '9') {
461 n = n * 10 + *p++ - '0';
462 }
463
464 v0 = (f ? -n : n);
465 pc0 = ra;
466}
467
468void psxBios_atol() { // 0x11
469 psxBios_atoi();
470}
471
472void psxBios_setjmp() { // 0x13
473 u32 *jmp_buf = (u32 *)Ra0;
474 int i;
475
476#ifdef PSXBIOS_LOG
477 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
478#endif
479
480 jmp_buf[0] = ra;
481 jmp_buf[1] = sp;
482 jmp_buf[2] = fp;
483 for (i = 0; i < 8; i++) // s0-s7
484 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
485 jmp_buf[11] = gp;
486
487 v0 = 0; pc0 = ra;
488}
489
490void psxBios_longjmp() { // 0x14
491 u32 *jmp_buf = (u32 *)Ra0;
492 int i;
493
494#ifdef PSXBIOS_LOG
495 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
496#endif
497
498 ra = jmp_buf[0]; /* ra */
499 sp = jmp_buf[1]; /* sp */
500 fp = jmp_buf[2]; /* fp */
501 for (i = 0; i < 8; i++) // s0-s7
502 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
503 gp = jmp_buf[11]; /* gp */
504
505 v0 = a1; pc0 = ra;
506}
507
508void psxBios_strcat() { // 0x15
509 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
510
511#ifdef PSXBIOS_LOG
512 PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
513#endif
bee52312 514 if (a0 == 0 || a1 == 0)
515 {
516 v0 = 0;
517 pc0 = ra;
518 return;
519 }
ef79bbde
P		 520 while (*p1++);
521 --p1;
522 while ((*p1++ = *p2++) != '\0');
523
524 v0 = a0; pc0 = ra;
525}
526
527void psxBios_strncat() { // 0x16
528 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
529 s32 n = a2;
530
531#ifdef PSXBIOS_LOG
532 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
533#endif
f42e1e90 534 if (a0 == 0 || a1 == 0)
535 {
536 v0 = 0;
537 pc0 = ra;
538 return;
539 }
ef79bbde
P		 540 while (*p1++);
541 --p1;
542 while ((*p1++ = *p2++) != '\0') {
543 if (--n < 0) {
544 *--p1 = '\0';
545 break;
546 }
547 }
548
549 v0 = a0; pc0 = ra;
550}
551
552void psxBios_strcmp() { // 0x17
553 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
c044e3e5 554 s32 n=0;
555 if (a0 == 0 && a1 == 0)
556 {
557 v0 = 0;
558 pc0 = ra;
559 return;
560 }
561 else if (a0 == 0 && a1 != 0)
562 {
563 v0 = -1;
564 pc0 = ra;
565 return;
566 }
567 else if (a0 != 0 && a1 == 0)
568 {
569 v0 = 1;
570 pc0 = ra;
571 return;
572 }
ef79bbde
P		 573#ifdef PSXBIOS_LOG
574 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
575#endif
576
577 while (*p1 == *p2++) {
c044e3e5 578 n++;
ef79bbde 579 if (*p1++ == '\0') {
c044e3e5 580 v1=n-1;
581 a0+=n;
582 a1+=n;
ef79bbde
P		 583 v0 = 0;
584 pc0 = ra;
585 return;
586 }
587 }
588
589 v0 = (*p1 - *--p2);
c044e3e5 590 v1 = n;
591 a0+=n;
592 a1+=n;
ef79bbde
P		 593 pc0 = ra;
594}
595
596void psxBios_strncmp() { // 0x18
597 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
598 s32 n = a2;
ba4ecb8c 599 if (a0 == 0 && a1 == 0)
600 {
601 v0 = 0;
602 pc0 = ra;
603 return;
604 }
605 else if (a0 == 0 && a1 != 0)
606 {
607 v0 = -1;
608 pc0 = ra;
609 return;
610 }
611 else if (a0 != 0 && a1 == 0)
612 {
613 v0 = 1;
614 pc0 = ra;
615 return;
616 }
ef79bbde
P		 617#ifdef PSXBIOS_LOG
618 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
619#endif
620
621 while (--n >= 0 && *p1 == *p2++) {
622 if (*p1++ == '\0') {
623 v0 = 0;
624 pc0 = ra;
ba4ecb8c 625 v1 = a2 - ((a2-n) - 1);
626 a0 += (a2-n) - 1;
627 a1 += (a2-n) - 1;
628 a2 = n;
ef79bbde
P		 629 return;
630 }
631 }
632
633 v0 = (n < 0 ? 0 : *p1 - *--p2);
634 pc0 = ra;
ba4ecb8c 635 v1 = a2 - ((a2-n) - 1);
636 a0 += (a2-n) - 1;
637 a1 += (a2-n) - 1;
638 a2 = n;
ef79bbde
P		 639}
640
641void psxBios_strcpy() { // 0x19
642 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
c3d791f1 643 if (a0 == 0 || a1 == 0)
644 {
645 v0 = 0;
646 pc0 = ra;
647 return;
648 }
ef79bbde
P		 649 while ((*p1++ = *p2++) != '\0');
650
651 v0 = a0; pc0 = ra;
652}
653
654void psxBios_strncpy() { // 0x1a
655 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
656 s32 n = a2, i;
c3d791f1 657 if (a0 == 0 || a1 == 0)
658 {
659 v0 = 0;
660 pc0 = ra;
661 return;
662 }
ef79bbde
P		 663 for (i = 0; i < n; i++) {
664 if ((*p1++ = *p2++) == '\0') {
665 while (++i < n) {
666 *p1++ = '\0';
667 }
668 v0 = a0; pc0 = ra;
669 return;
670 }
671 }
672
673 v0 = a0; pc0 = ra;
674}
675
676void psxBios_strlen() { // 0x1b
677 char *p = (char *)Ra0;
678 v0 = 0;
2c6a5df8 679 if (a0 == 0)
680 {
681 pc0 = ra;
682 return;
683 }
ef79bbde
P		 684 while (*p++) v0++;
685 pc0 = ra;
686}
687
688void psxBios_index() { // 0x1c
689 char *p = (char *)Ra0;
fcf7ec6c 690 if (a0 == 0)
691 {
692 v0 = 0;
693 pc0 = ra;
694 return;
695 }
696
ef79bbde
P		 697 do {
698 if (*p == a1) {
699 v0 = a0 + (p - (char *)Ra0);
700 pc0 = ra;
701 return;
702 }
703 } while (*p++ != '\0');
704
705 v0 = 0; pc0 = ra;
706}
707
708void psxBios_rindex() { // 0x1d
709 char *p = (char *)Ra0;
710
711 v0 = 0;
fcf7ec6c 712 if (a0 == 0)
713 {
714 pc0 = ra;
715 return;
716 }
ef79bbde
P		 717 do {
718 if (*p == a1)
719 v0 = a0 + (p - (char *)Ra0);
720 } while (*p++ != '\0');
721
722 pc0 = ra;
723}
724
725void psxBios_strchr() { // 0x1e
726 psxBios_index();
727}
728
729void psxBios_strrchr() { // 0x1f
730 psxBios_rindex();
731}
732
733void psxBios_strpbrk() { // 0x20
734 char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
735
736 while ((c = *p1++) != '\0') {
737 for (scanp = p2; (sc = *scanp++) != '\0';) {
738 if (sc == c) {
739 v0 = a0 + (p1 - 1 - (char *)Ra0);
740 pc0 = ra;
741 return;
742 }
743 }
744 }
745
746 // BUG: return a0 instead of NULL if not found
747 v0 = a0; pc0 = ra;
748}
749
750void psxBios_strspn() { // 0x21
751 char *p1, *p2;
752
753 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
754 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
755 if (*p2 == '\0') break;
756 }
757
758 v0 = p1 - (char *)Ra0; pc0 = ra;
759}
760
761void psxBios_strcspn() { // 0x22
762 char *p1, *p2;
763
764 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
765 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
766 if (*p2 != '\0') break;
767 }
768
769 v0 = p1 - (char *)Ra0; pc0 = ra;
770}
771
772void psxBios_strtok() { // 0x23
773 char *pcA0 = (char *)Ra0;
774 char *pcRet = strtok(pcA0, (char *)Ra1);
775 if (pcRet)
776 v0 = a0 + pcRet - pcA0;
777 else
778 v0 = 0;
779 pc0 = ra;
780}
781
782void psxBios_strstr() { // 0x24
783 char *p = (char *)Ra0, *p1, *p2;
784
785 while (*p != '\0') {
786 p1 = p;
787 p2 = (char *)Ra1;
788
789 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
790 p1++; p2++;
791 }
792
793 if (*p2 == '\0') {
794 v0 = a0 + (p - (char *)Ra0);
795 pc0 = ra;
796 return;
797 }
798
799 p++;
800 }
801
802 v0 = 0; pc0 = ra;
803}
804
805void psxBios_toupper() { // 0x25
806 v0 = (s8)(a0 & 0xff);
807 if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
808 pc0 = ra;
809}
810
811void psxBios_tolower() { // 0x26
812 v0 = (s8)(a0 & 0xff);
813 if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
814 pc0 = ra;
815}
816
817void psxBios_bcopy() { // 0x27
818 char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
0148ffb7 819 v0 = a0;
820 if (a0 == 0 || a2 > 0x7FFFFFFF)
821 {
822 pc0 = ra;
823 return;
824 }
5ec7acdf 825 while ((s32)a2-- > 0) *p1++ = *p2++;
0148ffb7 826 a2 = 0;
ef79bbde
P		 827 pc0 = ra;
828}
829
830void psxBios_bzero() { // 0x28
831 char *p = (char *)Ra0;
01724d23 832 v0 = a0;
833 /* Same as memset here (See memset below) */
834 if (a1 > 0x7FFFFFFF || a1 == 0)
835 {
836 v0 = 0;
837 pc0 = ra;
838 return;
839 }
840 else if (a0 == 0)
841 {
842 pc0 = ra;
843 return;
844 }
5ec7acdf 845 while ((s32)a1-- > 0) *p++ = '\0';
01724d23 846 a1 = 0;
ef79bbde
P		 847 pc0 = ra;
848}
849
850void psxBios_bcmp() { // 0x29
851 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
852
853 if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
854
5ec7acdf 855 while ((s32)a2-- > 0) {
ef79bbde
P		 856 if (*p1++ != *p2++) {
857 v0 = *p1 - *p2; // BUG: compare the NEXT byte
858 pc0 = ra;
859 return;
860 }
861 }
862
863 v0 = 0; pc0 = ra;
864}
865
866void psxBios_memcpy() { // 0x2a
867 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
ef1da3dc 868 v0 = a0;
869 if (a0 == 0 || a2 > 0x7FFFFFFF)
870 {
871 pc0 = ra;
872 return;
873 }
874 while ((s32)a2-- > 0) {
ef1da3dc 875 *p1++ = *p2++;
876 }
877 a2 = 0;
878 pc0 = ra;
ef79bbde
P		 879}
880
881void psxBios_memset() { // 0x2b
882 char *p = (char *)Ra0;
3f28b64f 883 v0 = a0;
884 if (a2 > 0x7FFFFFFF || a2 == 0)
885 {
886 v0 = 0;
887 pc0 = ra;
888 return;
889 }
890 if (a0 == 0)
891 {
892 pc0 = ra;
893 return;
894 }
5ec7acdf 895 while ((s32)a2-- > 0) *p++ = (char)a1;
5ec7acdf 896 a2 = 0;
ef79bbde
P		 897 v0 = a0; pc0 = ra;
898}
899
900void psxBios_memmove() { // 0x2c
901 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
112dddf5 902 v0 = a0;
903 if (a0 == 0 || a2 > 0x7FFFFFFF)
904 {
905 pc0 = ra;
906 return;
907 }
ef79bbde
P		 908 if (p2 <= p1 && p2 + a2 > p1) {
909 a2++; // BUG: copy one more byte here
910 p1 += a2;
911 p2 += a2;
5ec7acdf 912 while ((s32)a2-- > 0) *--p1 = *--p2;
ef79bbde 913 } else {
5ec7acdf 914 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde 915 }
112dddf5 916 pc0 = ra;
ef79bbde
P		 917}
918
919void psxBios_memcmp() { // 0x2d
920 psxBios_bcmp();
921}
922
923void psxBios_memchr() { // 0x2e
924 char *p = (char *)Ra0;
925
5ec7acdf 926 while ((s32)a2-- > 0) {
ef79bbde
P		 927 if (*p++ != (s8)a1) continue;
928 v0 = a0 + (p - (char *)Ra0 - 1);
929 pc0 = ra;
930 return;
931 }
932
933 v0 = 0; pc0 = ra;
934}
935
936void psxBios_rand() { // 0x2f
937 u32 s = psxMu32(0x9010) * 1103515245 + 12345;
938 v0 = (s >> 16) & 0x7fff;
939 psxMu32ref(0x9010) = SWAPu32(s);
940 pc0 = ra;
941}
942
943void psxBios_srand() { // 0x30
944 psxMu32ref(0x9010) = SWAPu32(a0);
945 pc0 = ra;
946}
947
948static u32 qscmpfunc, qswidth;
949
950static inline int qscmp(char *a, char *b) {
951 u32 sa0 = a0;
952
953 a0 = sa0 + (a - (char *)PSXM(sa0));
954 a1 = sa0 + (b - (char *)PSXM(sa0));
955
956 softCall2(qscmpfunc);
957
958 a0 = sa0;
959 return (s32)v0;
960}
961
962static inline void qexchange(char *i, char *j) {
963 char t;
964 int n = qswidth;
965
966 do {
967 t = *i;
968 *i++ = *j;
969 *j++ = t;
970 } while (--n);
971}
972
973static inline void q3exchange(char *i, char *j, char *k) {
974 char t;
975 int n = qswidth;
976
977 do {
978 t = *i;
979 *i++ = *k;
980 *k++ = *j;
981 *j++ = t;
982 } while (--n);
983}
984
985static void qsort_main(char *a, char *l) {
986 char *i, *j, *lp, *hp;
987 int c;
988 unsigned int n;
989
990start:
991 if ((n = l - a) <= qswidth)
992 return;
993 n = qswidth * (n / (2 * qswidth));
994 hp = lp = a + n;
995 i = a;
996 j = l - qswidth;
997 while (TRUE) {
998 if (i < lp) {
999 if ((c = qscmp(i, lp)) == 0) {
1000 qexchange(i, lp -= qswidth);
1001 continue;
1002 }
1003 if (c < 0) {
1004 i += qswidth;
1005 continue;
1006 }
1007 }
1008
1009loop:
1010 if (j > hp) {
1011 if ((c = qscmp(hp, j)) == 0) {
1012 qexchange(hp += qswidth, j);
1013 goto loop;
1014 }
1015 if (c > 0) {
1016 if (i == lp) {
1017 q3exchange(i, hp += qswidth, j);
1018 i = lp += qswidth;
1019 goto loop;
1020 }
1021 qexchange(i, j);
1022 j -= qswidth;
1023 i += qswidth;
1024 continue;
1025 }
1026 j -= qswidth;
1027 goto loop;
1028 }
1029
1030 if (i == lp) {
1031 if (lp - a >= l - hp) {
1032 qsort_main(hp + qswidth, l);
1033 l = lp;
1034 } else {
1035 qsort_main(a, lp);
1036 a = hp + qswidth;
1037 }
1038 goto start;
1039 }
1040
1041 q3exchange(j, lp -= qswidth, i);
1042 j = hp -= qswidth;
1043 }
1044}
1045
1046void psxBios_qsort() { // 0x31
1047 qswidth = a2;
1048 qscmpfunc = a3;
1049 qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
1050
1051 pc0 = ra;
1052}
1053
1054void psxBios_malloc() { // 0x33
808a13bd 1055 unsigned int *chunk, *newchunk = NULL;
1056 unsigned int dsize = 0, csize, cstat;
ef79bbde
P		 1057 int colflag;
1058#ifdef PSXBIOS_LOG
1059 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
1060#endif
26b964b5 1061 if (!a0 || (!heap_size || !heap_addr)) {
1062 v0 = 0;
1063 pc0 = ra;
1064 return;
1065 }
ef79bbde
P		 1066
1067 // scan through heap and combine free chunks of space
1068 chunk = heap_addr;
1069 colflag = 0;
1070 while(chunk < heap_end) {
1071 // get size and status of actual chunk
1072 csize = ((u32)*chunk) & 0xfffffffc;
1073 cstat = ((u32)*chunk) & 1;
1074
26b964b5 1075 // most probably broken heap descriptor
1076 // this fixes Burning Road
1077 if (*chunk == 0) {
1078 newchunk = chunk;
1079 dsize = ((uptr)heap_end - (uptr)chunk) - 4;
1080 colflag = 1;
1081 break;
1082 }
1083
ef79bbde
P		 1084 // it's a free chunk
1085 if(cstat == 1) {
1086 if(colflag == 0) {
1087 newchunk = chunk;
1088 dsize = csize;
1089 colflag = 1; // let's begin a new collection of free memory
1090 }
1091 else dsize += (csize+4); // add the new size including header
1092 }
1093 // not a free chunk: did we start a collection ?
1094 else {
1095 if(colflag == 1) { // collection is over
1096 colflag = 0;
1097 *newchunk = SWAP32(dsize | 1);
1098 }
1099 }
1100
1101 // next chunk
1102 chunk = (u32*)((uptr)chunk + csize + 4);
1103 }
1104 // if neccessary free memory on end of heap
1105 if (colflag == 1)
1106 *newchunk = SWAP32(dsize | 1);
1107
1108 chunk = heap_addr;
1109 csize = ((u32)*chunk) & 0xfffffffc;
1110 cstat = ((u32)*chunk) & 1;
1111 dsize = (a0 + 3) & 0xfffffffc;
1112
1113 // exit on uninitialized heap
1114 if (chunk == NULL) {
26b964b5 1115 printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
ef79bbde
P		 1116 v0 = 0;
1117 pc0 = ra;
1118 return;
1119 }
1120
1121 // search an unused chunk that is big enough until the end of the heap
26b964b5 1122 while ((dsize > csize || cstat==0) && chunk < heap_end ) {
ef79bbde 1123 chunk = (u32*)((uptr)chunk + csize + 4);
26b964b5 1124
1125 // catch out of memory
1126 if(chunk >= heap_end) {
1127 printf("malloc %x,%x: Out of memory error!\n",
1128 v0, a0);
1129 v0 = 0; pc0 = ra;
1130 return;
1131 }
1132
ef79bbde
P		 1133 csize = ((u32)*chunk) & 0xfffffffc;
1134 cstat = ((u32)*chunk) & 1;
1135 }
1136
ef79bbde
P		 1137 // allocate memory
1138 if(dsize == csize) {
1139 // chunk has same size
1140 *chunk &= 0xfffffffc;
26b964b5 1141 } else if (dsize > csize) {
1142 v0 = 0; pc0 = ra;
1143 return;
1144 } else {
ef79bbde
P		 1145 // split free chunk
1146 *chunk = SWAP32(dsize);
1147 newchunk = (u32*)((uptr)chunk + dsize + 4);
808a13bd 1148 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
ef79bbde
P		 1149 }
1150
1151 // return pointer to allocated memory
26b964b5 1152 v0 = ((uptr)chunk - (uptr)psxM) + 4;
ef79bbde 1153 v0|= 0x80000000;
26b964b5 1154 //printf ("malloc %x,%x\n", v0, a0);
ef79bbde
P		 1155 pc0 = ra;
1156}
1157
1158void psxBios_free() { // 0x34
1159
1160#ifdef PSXBIOS_LOG
1161 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1162#endif
1163
1164 SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1165
ba4ecb8c 1166 if (a0)
1167 *(u32*)(Ra0-4) |= 1; // set chunk to free
ef79bbde
P		 1168 pc0 = ra;
1169}
1170
1171void psxBios_calloc() { // 0x37
02949f79 1172 void *pv0;
ef79bbde
P		 1173#ifdef PSXBIOS_LOG
1174 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1175#endif
1176
1177 a0 = a0 * a1;
1178 psxBios_malloc();
02949f79 1179 pv0 = Rv0;
1180 if (pv0)
1181 memset(pv0, 0, a0);
ef79bbde
P		 1182}
1183
1184void psxBios_realloc() { // 0x38
1185 u32 block = a0;
1186 u32 size = a1;
1187#ifdef PSXBIOS_LOG
1188 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1189#endif
1190
1191 a0 = block;
391b1d5b 1192 /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1193 if (block == 0)
1194 {
1195 psxBios_malloc();
1196 }
1197 /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1198 else if (size == 0)
1199 {
1200 psxBios_free();
1201 }
1202 /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1203 /* Note that it is not quite implemented this way here. */
1204 else
1205 {
1206 psxBios_free();
1207 a0 = size;
1208 psxBios_malloc();
1209 }
ef79bbde
P		 1210}
1211
1212
1213/* InitHeap(void *block , int n) */
1214void psxBios_InitHeap() { // 0x39
1215 unsigned int size;
1216
1217#ifdef PSXBIOS_LOG
1218 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1219#endif
1220
1221 if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1222 else size = a1;
1223
1224 size &= 0xfffffffc;
1225
1226 heap_addr = (u32 *)Ra0;
a85ffa0e 1227 heap_size = size;
1228 heap_end = (u32 *)((u8 *)heap_addr + heap_size);
1229 /* HACKFIX: Commenting out this line fixes GTA2 crash */
1230 //*heap_addr = SWAP32(size | 1);
ef79bbde 1231
c979c3ee 1232 SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
ef79bbde
P		 1233
1234 pc0 = ra;
1235}
1236
1237void psxBios_getchar() { //0x3b
1238 v0 = getchar(); pc0 = ra;
1239}
1240
1241void psxBios_printf() { // 0x3f
1242 char tmp[1024];
1243 char tmp2[1024];
1244 u32 save[4];
1245 char *ptmp = tmp;
1246 int n=1, i=0, j;
02949f79 1247 void *psp;
1248
1249 psp = PSXM(sp);
1250 if (psp) {
1251 memcpy(save, psp, 4 * 4);
1252 psxMu32ref(sp) = SWAP32((u32)a0);
1253 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1254 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1255 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1256 }
ef79bbde
P		 1257
1258 while (Ra0[i]) {
1259 switch (Ra0[i]) {
1260 case '%':
1261 j = 0;
1262 tmp2[j++] = '%';
1263_start:
1264 switch (Ra0[++i]) {
1265 case '.':
1266 case 'l':
1267 tmp2[j++] = Ra0[i]; goto _start;
1268 default:
1269 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1270 tmp2[j++] = Ra0[i];
1271 goto _start;
1272 }
1273 break;
1274 }
1275 tmp2[j++] = Ra0[i];
1276 tmp2[j] = 0;
1277
1278 switch (Ra0[i]) {
1279 case 'f': case 'F':
1280 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1281 case 'a': case 'A':
1282 case 'e': case 'E':
1283 case 'g': case 'G':
1284 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1285 case 'p':
888468ff 1286 case 'i': case 'u':
ef79bbde
P		 1287 case 'd': case 'D':
1288 case 'o': case 'O':
1289 case 'x': case 'X':
1290 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1291 case 'c':
1292 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1293 case 's':
1294 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1295 case '%':
1296 *ptmp++ = Ra0[i]; break;
1297 }
1298 i++;
1299 break;
1300 default:
1301 *ptmp++ = Ra0[i++];
1302 }
1303 }
1304 *ptmp = 0;
1305
02949f79 1306 if (psp)
1307 memcpy(psp, save, 4 * 4);
ef79bbde 1308
808a13bd 1309 SysPrintf("%s", tmp);
ef79bbde
P		 1310
1311 pc0 = ra;
1312}
1313
e7e1f572 1314void psxBios_format() { // 0x41
1315 if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1316 {
1317 CreateMcd(Config.Mcd1);
1318 LoadMcd(1, Config.Mcd1);
1319 v0 = 1;
1320 }
1321 else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1322 {
1323 CreateMcd(Config.Mcd2);
1324 LoadMcd(2, Config.Mcd2);
1325 v0 = 1;
1326 }
1327 else
1328 {
1329 v0 = 0;
1330 }
1331 pc0 = ra;
1332}
1333
ef79bbde
P		 1334/*
1335 * long Load(char *name, struct EXEC *header);
1336 */
1337
1338void psxBios_Load() { // 0x42
1339 EXE_HEADER eheader;
02949f79 1340 void *pa1;
ef79bbde
P		 1341
1342#ifdef PSXBIOS_LOG
1343 PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1344#endif
1345
02949f79 1346 pa1 = Ra1;
1347 if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1348 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
ef79bbde
P		 1349 v0 = 1;
1350 } else v0 = 0;
1351
1352 pc0 = ra;
1353}
1354
1355/*
1356 * int Exec(struct EXEC *header , int argc , char **argv);
1357 */
1358
1359void psxBios_Exec() { // 43
1360 EXEC *header = (EXEC*)Ra0;
1361 u32 tmp;
1362
1363#ifdef PSXBIOS_LOG
1364 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1365#endif
1366
1367 header->_sp = sp;
1368 header->_fp = fp;
1369 header->_sp = sp;
1370 header->_gp = gp;
1371 header->ret = ra;
1372 header->base = s0;
1373
1374 if (header->S_addr != 0) {
1375 tmp = header->S_addr + header->s_size;
1376 sp = tmp;
1377 fp = sp;
1378 }
1379
1380 gp = header->gp0;
1381
1382 s0 = a0;
1383
1384 a0 = a1;
1385 a1 = a2;
1386
1387 ra = 0x8000;
1388 pc0 = header->_pc0;
1389}
1390
1391void psxBios_FlushCache() { // 44
1392#ifdef PSXBIOS_LOG
1393 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1394#endif
1395
1396 pc0 = ra;
1397}
1398
1399void psxBios_GPU_dw() { // 0x46
1400 int size;
1401 s32 *ptr;
1402
1403#ifdef PSXBIOS_LOG
1404 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1405#endif
1406
1407 GPU_writeData(0xa0000000);
1408 GPU_writeData((a1<<16)|(a0&0xffff));
1409 GPU_writeData((a3<<16)|(a2&0xffff));
1410 size = (a2*a3+1)/2;
1411 ptr = (s32*)PSXM(Rsp[4]); //that is correct?
1412 do {
1413 GPU_writeData(SWAP32(*ptr));
1414 ptr++;
1415 } while(--size);
1416
1417 pc0 = ra;
1418}
1419
1420void psxBios_mem2vram() { // 0x47
1421 int size;
1422
1423 GPU_writeData(0xa0000000);
1424 GPU_writeData((a1<<16)|(a0&0xffff));
1425 GPU_writeData((a3<<16)|(a2&0xffff));
1426 size = (a2*a3+1)/2;
1427 GPU_writeStatus(0x04000002);
1428 psxHwWrite32(0x1f8010f4,0);
1429 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1430 psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1431 psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1432 psxHwWrite32(0x1f8010a8,0x01000201);
1433
1434 pc0 = ra;
1435}
1436
1437void psxBios_SendGPU() { // 0x48
1438 GPU_writeStatus(a0);
ddbaf678 1439 gpuSyncPluginSR();
ef79bbde
P		 1440 pc0 = ra;
1441}
1442
1443void psxBios_GPU_cw() { // 0x49
1444 GPU_writeData(a0);
1445 pc0 = ra;
1446}
1447
1448void psxBios_GPU_cwb() { // 0x4a
1449 s32 *ptr = (s32*)Ra0;
1450 int size = a1;
1451 while(size--) {
1452 GPU_writeData(SWAP32(*ptr));
1453 ptr++;
1454 }
1455
1456 pc0 = ra;
1457}
1458
1459void psxBios_GPU_SendPackets() { //4b:
1460 GPU_writeStatus(0x04000002);
1461 psxHwWrite32(0x1f8010f4,0);
1462 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1463 psxHwWrite32(0x1f8010a0,a0);
1464 psxHwWrite32(0x1f8010a4,0);
1465 psxHwWrite32(0x1f8010a8,0x010000401);
1466 pc0 = ra;
1467}
1468
1469void psxBios_sys_a0_4c() { // 0x4c GPU relate
1470 psxHwWrite32(0x1f8010a8,0x00000401);
1471 GPU_writeData(0x0400000);
1472 GPU_writeData(0x0200000);
1473 GPU_writeData(0x0100000);
cd1ea245 1474 v0 = 0x1f801814;
ef79bbde
P		 1475 pc0 = ra;
1476}
1477
1478void psxBios_GPU_GetGPUStatus() { // 0x4d
1479 v0 = GPU_readStatus();
1480 pc0 = ra;
1481}
1482
1483#undef s_addr
1484
1485void psxBios_LoadExec() { // 51
1486 EXEC *header = (EXEC*)PSXM(0xf000);
1487 u32 s_addr, s_size;
1488
1489#ifdef PSXBIOS_LOG
1490 PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1491#endif
1492 s_addr = a1; s_size = a2;
1493
1494 a1 = 0xf000;
1495 psxBios_Load();
1496
1497 header->S_addr = s_addr;
1498 header->s_size = s_size;
1499
1500 a0 = 0xf000; a1 = 0; a2 = 0;
1501 psxBios_Exec();
1502}
1503
1504void psxBios__bu_init() { // 70
1505#ifdef PSXBIOS_LOG
1506 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1507#endif
1508
1509 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1510 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1511
1512 pc0 = ra;
1513}
1514
1515void psxBios__96_init() { // 71
1516#ifdef PSXBIOS_LOG
1517 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1518#endif
1519
1520 pc0 = ra;
1521}
1522
1523void psxBios__96_remove() { // 72
1524#ifdef PSXBIOS_LOG
1525 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1526#endif
1527
1528 pc0 = ra;
1529}
1530
1531void psxBios_SetMem() { // 9f
1532 u32 new = psxHu32(0x1060);
1533
1534#ifdef PSXBIOS_LOG
1535 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1536#endif
1537
1538 switch(a0) {
1539 case 2:
1540 psxHu32ref(0x1060) = SWAP32(new);
1541 psxMu32ref(0x060) = a0;
1542 SysPrintf("Change effective memory : %d MBytes\n",a0);
1543 break;
1544
1545 case 8:
1546 psxHu32ref(0x1060) = SWAP32(new | 0x300);
1547 psxMu32ref(0x060) = a0;
1548 SysPrintf("Change effective memory : %d MBytes\n",a0);
1549
1550 default:
1551 SysPrintf("Effective memory must be 2/8 MBytes\n");
1552 break;
1553 }
1554
1555 pc0 = ra;
1556}
1557
1558void psxBios__card_info() { // ab
1559#ifdef PSXBIOS_LOG
1560 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1561#endif
76b81516 1562 u32 ret;
e9fda093 1563 card_active_chan = a0;
1564
76b81516 1565 switch (card_active_chan)
1566 {
1567 case 0x00: case 0x01: case 0x02: case 0x03:
1568 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1569 break;
1570 case 0x10: case 0x11: case 0x12: case 0x13:
1571 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1572 break;
1573 default:
1574#ifdef PSXBIOS_LOG
1575 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1576#endif
1577 ret = 0x11;
1578 break;
1579 }
1580
1581// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
ef79bbde
P		 1582// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1583 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
76b81516 1584 DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
ef79bbde
P		 1585
1586 v0 = 1; pc0 = ra;
1587}
1588
1589void psxBios__card_load() { // ac
1590#ifdef PSXBIOS_LOG
1591 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1592#endif
1593
e9fda093 1594 card_active_chan = a0;
1595
ef79bbde
P		 1596// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1597 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1598
1599 v0 = 1; pc0 = ra;
1600}
1601
1602/* System calls B0 */
1603
1604void psxBios_SetRCnt() { // 02
1605#ifdef PSXBIOS_LOG
1606 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1607#endif
1608
1609 a0&= 0x3;
1610 if (a0 != 3) {
1611 u32 mode=0;
1612
1613 psxRcntWtarget(a0, a1);
1614 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1615 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1616 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1617 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1618 else { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1619
1620 psxRcntWmode(a0, mode);
1621 }
1622 pc0 = ra;
1623}
1624
1625void psxBios_GetRCnt() { // 03
1626#ifdef PSXBIOS_LOG
1627 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1628#endif
1629
1630 a0&= 0x3;
1631 if (a0 != 3) v0 = psxRcntRcount(a0);
1632 else v0 = 0;
1633 pc0 = ra;
1634}
1635
1636void psxBios_StartRCnt() { // 04
1637#ifdef PSXBIOS_LOG
1638 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1639#endif
1640
1641 a0&= 0x3;
1642 if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1643 else psxHu32ref(0x1074)|= SWAPu32(0x1);
1644 v0 = 1; pc0 = ra;
1645}
1646
1647void psxBios_StopRCnt() { // 05
1648#ifdef PSXBIOS_LOG
1649 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1650#endif
1651
1652 a0&= 0x3;
1653 if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1654 else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1655 pc0 = ra;
1656}
1657
1658void psxBios_ResetRCnt() { // 06
1659#ifdef PSXBIOS_LOG
1660 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1661#endif
1662
1663 a0&= 0x3;
1664 if (a0 != 3) {
1665 psxRcntWmode(a0, 0);
1666 psxRcntWtarget(a0, 0);
1667 psxRcntWcount(a0, 0);
1668 }
1669 pc0 = ra;
1670}
1671
1672
1673/* gets ev for use with Event */
1674#define GetEv() \
1675 ev = (a0 >> 24) & 0xf; \
1676 if (ev == 0xf) ev = 0x5; \
1677 ev*= 32; \
1678 ev+= a0&0x1f;
1679
1680/* gets spec for use with Event */
1681#define GetSpec() \
1682 spec = 0; \
1683 switch (a1) { \
1684 case 0x0301: spec = 16; break; \
1685 case 0x0302: spec = 17; break; \
1686 default: \
1687 for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1688 break; \
1689 }
1690
1691void psxBios_DeliverEvent() { // 07
1692 int ev, spec;
1693 int i;
1694
1695 GetEv();
1696 GetSpec();
1697
1698#ifdef PSXBIOS_LOG
1699 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1700#endif
1701
1702 DeliverEvent(ev, spec);
1703
1704 pc0 = ra;
1705}
1706
1707void psxBios_OpenEvent() { // 08
1708 int ev, spec;
1709 int i;
1710
1711 GetEv();
1712 GetSpec();
1713
1714#ifdef PSXBIOS_LOG
1715 PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1716#endif
1717
1718 Event[ev][spec].status = EvStWAIT;
1719 Event[ev][spec].mode = a2;
1720 Event[ev][spec].fhandler = a3;
1721
1722 v0 = ev | (spec << 8);
1723 pc0 = ra;
1724}
1725
1726void psxBios_CloseEvent() { // 09
1727 int ev, spec;
1728
1729 ev = a0 & 0xff;
1730 spec = (a0 >> 8) & 0xff;
1731
1732#ifdef PSXBIOS_LOG
1733 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1734#endif
1735
1736 Event[ev][spec].status = EvStUNUSED;
1737
1738 v0 = 1; pc0 = ra;
1739}
1740
1741void psxBios_WaitEvent() { // 0a
1742 int ev, spec;
1743
1744 ev = a0 & 0xff;
1745 spec = (a0 >> 8) & 0xff;
ef79bbde
P		 1746#ifdef PSXBIOS_LOG
1747 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1748#endif
d95c9dcb 1749 if (Event[ev][spec].status == EvStUNUSED)
1750 {
1751 v0 = 0;
1752 pc0 = ra;
1753 return;
1754 }
ef79bbde 1755
d95c9dcb 1756 if (Event[ev][spec].status == EvStALREADY)
1757 {
1758 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1759 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1760 v0 = 1;
1761 pc0 = ra;
1762 return;
1763 }
ef79bbde 1764
d95c9dcb 1765 v0 = 0;
1766 pc0 = ra;
ef79bbde
P		 1767}
1768
1769void psxBios_TestEvent() { // 0b
1770 int ev, spec;
1771
1772 ev = a0 & 0xff;
1773 spec = (a0 >> 8) & 0xff;
1774
b4ae2532 1775 if (Event[ev][spec].status == EvStALREADY)
1776 {
1777 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1778 v0 = 1;
1779 }
1780 else
1781 {
1782 v0 = 0;
1783 }
ef79bbde
P		 1784
1785#ifdef PSXBIOS_LOG
1786 PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1787#endif
1788
1789 pc0 = ra;
1790}
1791
1792void psxBios_EnableEvent() { // 0c
1793 int ev, spec;
1794
1795 ev = a0 & 0xff;
1796 spec = (a0 >> 8) & 0xff;
1797
1798#ifdef PSXBIOS_LOG
1799 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1800#endif
1801
1802 Event[ev][spec].status = EvStACTIVE;
1803
1804 v0 = 1; pc0 = ra;
1805}
1806
1807void psxBios_DisableEvent() { // 0d
1808 int ev, spec;
1809
1810 ev = a0 & 0xff;
1811 spec = (a0 >> 8) & 0xff;
1812
1813#ifdef PSXBIOS_LOG
1814 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1815#endif
1816
1817 Event[ev][spec].status = EvStWAIT;
1818
1819 v0 = 1; pc0 = ra;
1820}
1821
1822/*
1823 * long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1824 */
1825
1826void psxBios_OpenTh() { // 0e
1827 int th;
1828
1829 for (th=1; th<8; th++)
a66d3058 1830 {
ef79bbde
P		 1831 if (Thread[th].status == 0) break;
1832
a66d3058 1833 }
1834 if (th == 8) {
1835 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1836 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1837#ifdef PSXBIOS_LOG
1838 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1839#endif
1840 v0 = 0xffffffff;
1841 pc0 = ra;
1842 return;
1843 }
ef79bbde
P		 1844#ifdef PSXBIOS_LOG
1845 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1846#endif
1847
1848 Thread[th].status = 1;
1849 Thread[th].func = a0;
1850 Thread[th].reg[29] = a1;
1851 Thread[th].reg[28] = a2;
1852
1853 v0 = th; pc0 = ra;
1854}
1855
1856/*
1857 * int CloseTh(long thread);
1858 */
1859
1860void psxBios_CloseTh() { // 0f
1861 int th = a0 & 0xff;
1862
1863#ifdef PSXBIOS_LOG
1864 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1865#endif
1866
1867 if (Thread[th].status == 0) {
1868 v0 = 0;
1869 } else {
1870 Thread[th].status = 0;
1871 v0 = 1;
1872 }
1873
1874 pc0 = ra;
1875}
1876
1877/*
1878 * int ChangeTh(long thread);
1879 */
1880
1881void psxBios_ChangeTh() { // 10
1882 int th = a0 & 0xff;
1883
1884#ifdef PSXBIOS_LOG
1885// PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1886#endif
1887
1888 if (Thread[th].status == 0 || CurThread == th) {
1889 v0 = 0;
1890
1891 pc0 = ra;
1892 } else {
1893 v0 = 1;
1894
1895 if (Thread[CurThread].status == 2) {
1896 Thread[CurThread].status = 1;
1897 Thread[CurThread].func = ra;
1898 memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1899 }
1900
1901 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1902 pc0 = Thread[th].func;
1903 Thread[th].status = 2;
1904 CurThread = th;
1905 }
1906}
1907
1908void psxBios_InitPAD() { // 0x12
1909#ifdef PSXBIOS_LOG
1910 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1911#endif
1912
1913 pad_buf1 = (char*)Ra0;
1914 pad_buf1len = a1;
1915 pad_buf2 = (char*)Ra2;
1916 pad_buf2len = a3;
1917
1918 v0 = 1; pc0 = ra;
1919}
1920
1921void psxBios_StartPAD() { // 13
1922#ifdef PSXBIOS_LOG
1923 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1924#endif
f25c285b 1925 pad_stopped = 0;
ef79bbde
P		 1926 psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1927 psxRegs.CP0.n.Status |= 0x401;
1928 pc0 = ra;
1929}
1930
1931void psxBios_StopPAD() { // 14
1932#ifdef PSXBIOS_LOG
1933 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1934#endif
f25c285b 1935 pad_stopped = 1;
ef79bbde
P		 1936 pad_buf1 = NULL;
1937 pad_buf2 = NULL;
1938 pc0 = ra;
1939}
1940
1941void psxBios_PAD_init() { // 15
1942#ifdef PSXBIOS_LOG
1943 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1944#endif
a824e83d 1945 if (!(a0 == 0x20000000 || a0 == 0x20000001))
1946 {
1947 v0 = 0;
1948 pc0 = ra;
1949 return;
1950 }
ef79bbde
P		 1951 psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1952 pad_buf = (int *)Ra1;
1953 *pad_buf = -1;
1954 psxRegs.CP0.n.Status |= 0x401;
a824e83d 1955 v0 = 2;
ef79bbde
P		 1956 pc0 = ra;
1957}
1958
1959void psxBios_PAD_dr() { // 16
1960#ifdef PSXBIOS_LOG
1961 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1962#endif
1963
1964 v0 = -1; pc0 = ra;
1965}
1966
1967void psxBios_ReturnFromException() { // 17
1968 LoadRegs();
1969
1970 pc0 = psxRegs.CP0.n.EPC;
1971 if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1972
1973 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1974 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1975}
1976
1977void psxBios_ResetEntryInt() { // 18
1978#ifdef PSXBIOS_LOG
1979 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1980#endif
1981
1982 jmp_int = NULL;
1983 pc0 = ra;
1984}
1985
1986void psxBios_HookEntryInt() { // 19
1987#ifdef PSXBIOS_LOG
1988 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1989#endif
1990
1991 jmp_int = (u32*)Ra0;
1992 pc0 = ra;
1993}
1994
1995void psxBios_UnDeliverEvent() { // 0x20
1996 int ev, spec;
1997 int i;
1998
1999 GetEv();
2000 GetSpec();
2001
2002#ifdef PSXBIOS_LOG
2003 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
2004#endif
2005
2006 if (Event[ev][spec].status == EvStALREADY &&
2007 Event[ev][spec].mode == EvMdNOINTR)
2008 Event[ev][spec].status = EvStACTIVE;
2009
2010 pc0 = ra;
2011}
2012
595a136b 2013char ffile[64], *pfile;
2014int nfile;
2015static void buopen(int mcd, u8 *ptr, u8 *cfg)
2016{
2017 int i;
2018 u8 *fptr = ptr;
2019
2020 strcpy(FDesc[1 + mcd].name, Ra0+5);
2021 FDesc[1 + mcd].offset = 0;
2022 FDesc[1 + mcd].mode = a1;
2023
2024 for (i=1; i<16; i++) {
2025 fptr += 128;
2026 if ((*fptr & 0xF0) != 0x50) continue;
2027 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
2028 FDesc[1 + mcd].mcfile = i;
2029 SysPrintf("open %s\n", fptr+0xa);
2030 v0 = 1 + mcd;
2031 break;
2032 }
2033 if (a1 & 0x200 && v0 == -1) { /* FCREAT */
2034 fptr = ptr;
2035 for (i=1; i<16; i++) {
2036 int j, xor, nblk = a1 >> 16;
2037 u8 *pptr, *fptr2;
2038
2039 fptr += 128;
2040 if ((*fptr & 0xF0) != 0xa0) continue;
2041
2042 FDesc[1 + mcd].mcfile = i;
2043 fptr[0] = 0x51;
2044 fptr[4] = 0x00;
2045 fptr[5] = 0x20 * nblk;
2046 fptr[6] = 0x00;
2047 fptr[7] = 0x00;
2048 strcpy(fptr+0xa, FDesc[1 + mcd].name);
2049 pptr = fptr2 = fptr;
2050 for(j=2; j<=nblk; j++) {
2051 int k;
2052 for(i++; i<16; i++) {
2053 fptr2 += 128;
2054
2055 memset(fptr2, 0, 128);
2056 fptr2[0] = j < nblk ? 0x52 : 0x53;
2057 pptr[8] = i - 1;
2058 pptr[9] = 0;
2059 for (k=0, xor=0; k<127; k++) xor^= pptr[k];
2060 pptr[127] = xor;
2061 pptr = fptr2;
2062 break;
2063 }
2064 /* shouldn't this return ENOSPC if i == 16? */
2065 }
2066 pptr[8] = pptr[9] = 0xff;
2067 for (j=0, xor=0; j<127; j++) xor^= pptr[j];
2068 pptr[127] = xor;
2069 SysPrintf("openC %s %d\n", ptr, nblk);
2070 v0 = 1 + mcd;
2071 /* just go ahead and resave them all */
2072 SaveMcd(cfg, ptr, 128, 128 * 15);
2073 break;
2074 }
2075 /* shouldn't this return ENOSPC if i == 16? */
2076 }
ef79bbde
P		 2077}
2078
2079/*
2080 * int open(char *name , int mode);
2081 */
2082
2083void psxBios_open() { // 0x32
2084 int i;
2085 char *ptr;
02949f79 2086 void *pa0 = Ra0;
ef79bbde
P		 2087
2088#ifdef PSXBIOS_LOG
2089 PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
2090#endif
2091
2092 v0 = -1;
2093
02949f79 2094 if (pa0) {
2095 if (!strncmp(pa0, "bu00", 4)) {
595a136b 2096 buopen(1, Mcd1Data, Config.Mcd1);
02949f79 2097 }
ef79bbde 2098
02949f79 2099 if (!strncmp(pa0, "bu10", 4)) {
595a136b 2100 buopen(2, Mcd2Data, Config.Mcd2);
02949f79 2101 }
ef79bbde
P		 2102 }
2103
2104 pc0 = ra;
2105}
2106
2107/*
2108 * int lseek(int fd , int offset , int whence);
2109 */
2110
2111void psxBios_lseek() { // 0x33
2112#ifdef PSXBIOS_LOG
2113 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2114#endif
2115
2116 switch (a2) {
2117 case 0: // SEEK_SET
2118 FDesc[a0].offset = a1;
2119 v0 = a1;
2120// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2121// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2122 break;
2123
2124 case 1: // SEEK_CUR
2125 FDesc[a0].offset+= a1;
2126 v0 = FDesc[a0].offset;
2127 break;
2128 }
2129
2130 pc0 = ra;
2131}
2132
595a136b 2133
ef79bbde
P		 2134/*
2135 * int read(int fd , void *buf , int nbytes);
2136 */
2137
2138void psxBios_read() { // 0x34
2139 char *ptr;
02949f79 2140 void *pa1 = Ra1;
ef79bbde
P		 2141
2142#ifdef PSXBIOS_LOG
2143 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2144#endif
2145
2146 v0 = -1;
2147
02949f79 2148 if (pa1) {
2149 switch (a0) {
595a136b 2150 case 2: buread(pa1, 1, a2); break;
2151 case 3: buread(pa1, 2, a2); break;
02949f79 2152 }
ef79bbde
P		 2153 }
2154
2155 pc0 = ra;
2156}
2157
ef79bbde
P		 2158/*
2159 * int write(int fd , void *buf , int nbytes);
2160 */
2161
2162void psxBios_write() { // 0x35/0x03
2163 char *ptr;
02949f79 2164 void *pa1 = Ra1;
2165
2166#ifdef PSXBIOS_LOG
2167 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2168#endif
2169
2170 v0 = -1;
2171 if (!pa1) {
2172 pc0 = ra;
2173 return;
2174 }
ef79bbde
P		 2175
2176 if (a0 == 1) { // stdout
02949f79 2177 char *ptr = pa1;
ef79bbde 2178
02949f79 2179 v0 = a2;
ef79bbde
P		 2180 while (a2 > 0) {
2181 SysPrintf("%c", *ptr++); a2--;
2182 }
2183 pc0 = ra; return;
2184 }
ef79bbde
P		 2185
2186 switch (a0) {
595a136b 2187 case 2: buwrite(pa1, 1, a2); break;
2188 case 3: buwrite(pa1, 2, a2); break;
ef79bbde
P		 2189 }
2190
2191 pc0 = ra;
2192}
2193
2194/*
2195 * int close(int fd);
2196 */
2197
2198void psxBios_close() { // 0x36
2199#ifdef PSXBIOS_LOG
2200 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2201#endif
2202
2203 v0 = a0;
2204 pc0 = ra;
2205}
2206
2207void psxBios_putchar() { // 3d
2208 SysPrintf("%c", (char)a0);
2209 pc0 = ra;
2210}
2211
2212void psxBios_puts() { // 3e/3f
808a13bd 2213 SysPrintf("%s", Ra0);
ef79bbde
P		 2214 pc0 = ra;
2215}
2216
f1514614 2217
2218/* To avoid any issues with different behaviour when using the libc's own strlen instead.
2219 * We want to mimic the PSX's behaviour in this case for bufile. */
2220static size_t strlen_internal(char* p)
2221{
2222 size_t size_of_array = 0;
2223 while (*p++) size_of_array++;
2224 return size_of_array;
2225}
2226
ef79bbde 2227#define bufile(mcd) { \
f1514614 2228 size_t size_of_name = strlen_internal(dir->name); \
ef79bbde
P		 2229 while (nfile < 16) { \
2230 int match=1; \
2231 \
595a136b 2232 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
ef79bbde
P		 2233 nfile++; \
2234 if ((*ptr & 0xF0) != 0x50) continue; \
595a136b 2235 /* Bug link files show up as free block. */ \
2236 if (!ptr[0xa]) continue; \
ef79bbde
P		 2237 ptr+= 0xa; \
2238 if (pfile[0] == 0) { \
f1514614 2239 strncpy(dir->name, ptr, sizeof(dir->name) - 1); \
2240 if (size_of_name < sizeof(dir->name)) dir->name[size_of_name] = '\0'; \
ef79bbde
P		 2241 } else for (i=0; i<20; i++) { \
2242 if (pfile[i] == ptr[i]) { \
595a136b 2243 dir->name[i] = ptr[i]; continue; } \
ef79bbde
P		 2244 if (pfile[i] == '?') { \
2245 dir->name[i] = ptr[i]; continue; } \
2246 if (pfile[i] == '*') { \
2247 strcpy(dir->name+i, ptr+i); break; } \
2248 match = 0; break; \
2249 } \
2250 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
595a136b 2251 if (match == 0) { continue; } \
ef79bbde
P		 2252 dir->size = 8192; \
2253 v0 = _dir; \
2254 break; \
2255 } \
2256}
2257
2258/*
2259 * struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2260 */
2261
2262void psxBios_firstfile() { // 42
2263 struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
02949f79 2264 void *pa0 = Ra0;
ef79bbde
P		 2265 u32 _dir = a1;
2266 char *ptr;
2267 int i;
2268
2269#ifdef PSXBIOS_LOG
2270 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2271#endif
2272
2273 v0 = 0;
2274
02949f79 2275 if (pa0) {
2276 strcpy(ffile, pa0);
2277 pfile = ffile+5;
2278 nfile = 1;
2279 if (!strncmp(pa0, "bu00", 4)) {
857fabea 2280 // firstfile() calls _card_read() internally, so deliver it's event
2281 DeliverEvent(0x11, 0x2);
02949f79 2282 bufile(1);
2283 } else if (!strncmp(pa0, "bu10", 4)) {
857fabea 2284 // firstfile() calls _card_read() internally, so deliver it's event
2285 DeliverEvent(0x11, 0x2);
02949f79 2286 bufile(2);
2287 }
ef79bbde
P		 2288 }
2289
2290 pc0 = ra;
2291}
2292
2293/*
2294 * struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2295 */
2296
2297void psxBios_nextfile() { // 43
2298 struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2299 u32 _dir = a0;
2300 char *ptr;
2301 int i;
2302
2303#ifdef PSXBIOS_LOG
2304 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2305#endif
2306
2307 v0 = 0;
2308
2309 if (!strncmp(ffile, "bu00", 4)) {
2310 bufile(1);
2311 }
2312
2313 if (!strncmp(ffile, "bu10", 4)) {
2314 bufile(2);
2315 }
2316
2317 pc0 = ra;
2318}
2319
2320#define burename(mcd) { \
2321 for (i=1; i<16; i++) { \
2322 int namelen, j, xor = 0; \
2323 ptr = Mcd##mcd##Data + 128 * i; \
2324 if ((*ptr & 0xF0) != 0x50) continue; \
2325 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2326 namelen = strlen(Ra1+5); \
2327 memcpy(ptr+0xa, Ra1+5, namelen); \
2328 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2329 for (j=0; j<127; j++) xor^= ptr[j]; \
2330 ptr[127] = xor; \
2331 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2332 v0 = 1; \
2333 break; \
2334 } \
2335}
2336
2337/*
2338 * int rename(char *old, char *new);
2339 */
2340
2341void psxBios_rename() { // 44
02949f79 2342 void *pa0 = Ra0;
2343 void *pa1 = Ra1;
ef79bbde
P		 2344 char *ptr;
2345 int i;
2346
2347#ifdef PSXBIOS_LOG
2348 PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2349#endif
2350
2351 v0 = 0;
2352
02949f79 2353 if (pa0 && pa1) {
2354 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2355 burename(1);
2356 }
ef79bbde 2357
02949f79 2358 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2359 burename(2);
2360 }
ef79bbde
P		 2361 }
2362
2363 pc0 = ra;
2364}
2365
2366
2367#define budelete(mcd) { \
2368 for (i=1; i<16; i++) { \
2369 ptr = Mcd##mcd##Data + 128 * i; \
2370 if ((*ptr & 0xF0) != 0x50) continue; \
2371 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2372 *ptr = (*ptr & 0xf) | 0xA0; \
2373 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2374 SysPrintf("delete %s\n", ptr+0xa); \
2375 v0 = 1; \
2376 break; \
2377 } \
2378}
2379
2380/*
2381 * int delete(char *name);
2382 */
2383
2384void psxBios_delete() { // 45
02949f79 2385 void *pa0 = Ra0;
ef79bbde
P		 2386 char *ptr;
2387 int i;
2388
2389#ifdef PSXBIOS_LOG
2390 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2391#endif
2392
2393 v0 = 0;
2394
02949f79 2395 if (pa0) {
2396 if (!strncmp(pa0, "bu00", 4)) {
2397 budelete(1);
2398 }
ef79bbde 2399
02949f79 2400 if (!strncmp(pa0, "bu10", 4)) {
2401 budelete(2);
2402 }
ef79bbde
P		 2403 }
2404
2405 pc0 = ra;
2406}
2407
2408void psxBios_InitCARD() { // 4a
2409#ifdef PSXBIOS_LOG
2410 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2411#endif
2412
2413 CardState = 0;
2414
2415 pc0 = ra;
2416}
2417
2418void psxBios_StartCARD() { // 4b
2419#ifdef PSXBIOS_LOG
2420 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2421#endif
2422
2423 if (CardState == 0) CardState = 1;
2424
2425 pc0 = ra;
2426}
2427
2428void psxBios_StopCARD() { // 4c
2429#ifdef PSXBIOS_LOG
2430 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2431#endif
2432
2433 if (CardState == 1) CardState = 0;
2434
2435 pc0 = ra;
2436}
2437
2438void psxBios__card_write() { // 0x4e
02949f79 2439 void *pa2 = Ra2;
ef79bbde
P		 2440 int port;
2441
2442#ifdef PSXBIOS_LOG
2443 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2444#endif
bd48ba5e 2445 /* Function also accepts sector 400h (a bug) */
2446 if (!(a1 <= 0x400))
2447 {
2448 /* Invalid sectors */
2449 v0 = 0; pc0 = ra;
2450 return;
2451 }
e9fda093 2452 card_active_chan = a0;
ef79bbde
P		 2453 port = a0 >> 4;
2454
02949f79 2455 if (pa2) {
2456 if (port == 0) {
2457 memcpy(Mcd1Data + a1 * 128, pa2, 128);
2458 SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2459 } else {
2460 memcpy(Mcd2Data + a1 * 128, pa2, 128);
2461 SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2462 }
ef79bbde
P		 2463 }
2464
2465 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2466// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2467
2468 v0 = 1; pc0 = ra;
2469}
2470
2471void psxBios__card_read() { // 0x4f
02949f79 2472 void *pa2 = Ra2;
ef79bbde
P		 2473 int port;
2474
2475#ifdef PSXBIOS_LOG
2476 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2477#endif
bd48ba5e 2478 /* Function also accepts sector 400h (a bug) */
2479 if (!(a1 <= 0x400))
2480 {
2481 /* Invalid sectors */
2482 v0 = 0; pc0 = ra;
2483 return;
2484 }
e9fda093 2485 card_active_chan = a0;
ef79bbde
P		 2486 port = a0 >> 4;
2487
02949f79 2488 if (pa2) {
2489 if (port == 0) {
2490 memcpy(pa2, Mcd1Data + a1 * 128, 128);
2491 } else {
2492 memcpy(pa2, Mcd2Data + a1 * 128, 128);
2493 }
ef79bbde
P		 2494 }
2495
2496 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2497// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2498
2499 v0 = 1; pc0 = ra;
2500}
2501
2502void psxBios__new_card() { // 0x50
2503#ifdef PSXBIOS_LOG
2504 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2505#endif
2506
2507 pc0 = ra;
2508}
2509
002b2f7d 2510/* According to a user, this allows Final Fantasy Tactics to save/load properly */
2511void psxBios__get_error(void) // 55
2512{
2513 v0 = 0;
2514 pc0 = ra;
2515}
2516
ef79bbde
P		 2517void psxBios_Krom2RawAdd() { // 0x51
2518 int i = 0;
2519
2520 const u32 table_8140[][2] = {
2521 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2522 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2523 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2524 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2525 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2526 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2527 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2528 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2529 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2530 {0xffff, 0}
2531 };
2532
2533 const u32 table_889f[][2] = {
2534 {0x889f, 0x3d68}, {0x8900, 0x40ec}, {0x897f, 0x4fb0}, {0x8a00, 0x56f4},
2535 {0x8a7f, 0x65b8}, {0x8b00, 0x6cfc}, {0x8b7f, 0x7bc0}, {0x8c00, 0x8304},
2536 {0x8c7f, 0x91c8}, {0x8d00, 0x990c}, {0x8d7f, 0xa7d0}, {0x8e00, 0xaf14},
2537 {0x8e7f, 0xbdd8}, {0x8f00, 0xc51c}, {0x8f7f, 0xd3e0}, {0x9000, 0xdb24},
2538 {0x907f, 0xe9e8}, {0x9100, 0xf12c}, {0x917f, 0xfff0}, {0x9200, 0x10734},
2539 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2540 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2541 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2542 {0xffff, 0}
2543 };
2544
2545 if (a0 >= 0x8140 && a0 <= 0x84be) {
2546 while (table_8140[i][0] <= a0) i++;
2547 a0 -= table_8140[i - 1][0];
2548 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2549 } else if (a0 >= 0x889f && a0 <= 0x9872) {
2550 while (table_889f[i][0] <= a0) i++;
2551 a0 -= table_889f[i - 1][0];
2552 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2553 } else {
2554 v0 = 0xffffffff;
2555 }
2556
2557 pc0 = ra;
2558}
2559
2560void psxBios_GetC0Table() { // 56
2561#ifdef PSXBIOS_LOG
2562 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2563#endif
2564
2565 v0 = 0x674; pc0 = ra;
2566}
2567
2568void psxBios_GetB0Table() { // 57
2569#ifdef PSXBIOS_LOG
2570 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2571#endif
2572
2573 v0 = 0x874; pc0 = ra;
2574}
2575
e9fda093 2576void psxBios__card_chan() { // 0x58
2577#ifdef PSXBIOS_LOG
2578 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2579#endif
2580
2581 v0 = card_active_chan;
2582 pc0 = ra;
2583}
2584
ef79bbde
P		 2585void psxBios_ChangeClearPad() { // 5b
2586#ifdef PSXBIOS_LOG
2587 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2588#endif
2589
2590 pc0 = ra;
2591}
2592
21af3ff6 2593void psxBios__card_status() { // 5c
2594#ifdef PSXBIOS_LOG
2595 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5c], a0);
2596#endif
2597
2598 v0 = 1;
2599 pc0 = ra;
2600}
2601
ef79bbde
P		 2602/* System calls C0 */
2603
2604/*
2605 * int SysEnqIntRP(int index , long *queue);
2606 */
2607
2608void psxBios_SysEnqIntRP() { // 02
2609#ifdef PSXBIOS_LOG
2610 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2611#endif
2612
2613 SysIntRP[a0] = a1;
2614
2615 v0 = 0; pc0 = ra;
2616}
2617
2618/*
2619 * int SysDeqIntRP(int index , long *queue);
2620 */
2621
2622void psxBios_SysDeqIntRP() { // 03
2623#ifdef PSXBIOS_LOG
2624 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2625#endif
2626
2627 SysIntRP[a0] = 0;
2628
2629 v0 = 0; pc0 = ra;
2630}
2631
2632void psxBios_ChangeClearRCnt() { // 0a
2633 u32 *ptr;
2634
2635#ifdef PSXBIOS_LOG
2636 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2637#endif
2638
2639 ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2640 v0 = *ptr;
2641 *ptr = a1;
2642
2643// psxRegs.CP0.n.Status|= 0x404;
2644 pc0 = ra;
2645}
2646
2647void psxBios_dummy() {
2648#ifdef PSXBIOS_LOG
2649 PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2650#endif
2651 pc0 = ra;
2652}
2653
2654void (*biosA0[256])();
2655void (*biosB0[256])();
2656void (*biosC0[256])();
2657
2658#include "sjisfont.h"
2659
2660void psxBiosInit() {
2661 u32 base, size;
2662 u32 *ptr;
2663 int i;
2664 uLongf len;
2665
2666 for(i = 0; i < 256; i++) {
2667 biosA0[i] = NULL;
2668 biosB0[i] = NULL;
2669 biosC0[i] = NULL;
2670 }
2671 biosA0[0x3e] = psxBios_puts;
2672 biosA0[0x3f] = psxBios_printf;
2673
2674 biosB0[0x3d] = psxBios_putchar;
2675 biosB0[0x3f] = psxBios_puts;
2676
2677 if (!Config.HLE) return;
2678
2679 for(i = 0; i < 256; i++) {
2680 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2681 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2682 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2683 }
2684
2685 biosA0[0x00] = psxBios_open;
2686 biosA0[0x01] = psxBios_lseek;
2687 biosA0[0x02] = psxBios_read;
2688 biosA0[0x03] = psxBios_write;
2689 biosA0[0x04] = psxBios_close;
2690 //biosA0[0x05] = psxBios_ioctl;
2691 //biosA0[0x06] = psxBios_exit;
2692 //biosA0[0x07] = psxBios_sys_a0_07;
324cec89 2693 biosA0[0x08] = psxBios_getc;
2694 biosA0[0x09] = psxBios_putc;
ba11675c 2695 biosA0[0x0a] = psxBios_todigit;
ef79bbde
P		 2696 //biosA0[0x0b] = psxBios_atof;
2697 //biosA0[0x0c] = psxBios_strtoul;
2698 //biosA0[0x0d] = psxBios_strtol;
2699 biosA0[0x0e] = psxBios_abs;
2700 biosA0[0x0f] = psxBios_labs;
2701 biosA0[0x10] = psxBios_atoi;
2702 biosA0[0x11] = psxBios_atol;
2703 //biosA0[0x12] = psxBios_atob;
2704 biosA0[0x13] = psxBios_setjmp;
2705 biosA0[0x14] = psxBios_longjmp;
2706 biosA0[0x15] = psxBios_strcat;
2707 biosA0[0x16] = psxBios_strncat;
2708 biosA0[0x17] = psxBios_strcmp;
2709 biosA0[0x18] = psxBios_strncmp;
2710 biosA0[0x19] = psxBios_strcpy;
2711 biosA0[0x1a] = psxBios_strncpy;
2712 biosA0[0x1b] = psxBios_strlen;
2713 biosA0[0x1c] = psxBios_index;
2714 biosA0[0x1d] = psxBios_rindex;
2715 biosA0[0x1e] = psxBios_strchr;
2716 biosA0[0x1f] = psxBios_strrchr;
2717 biosA0[0x20] = psxBios_strpbrk;
2718 biosA0[0x21] = psxBios_strspn;
2719 biosA0[0x22] = psxBios_strcspn;
2720 biosA0[0x23] = psxBios_strtok;
2721 biosA0[0x24] = psxBios_strstr;
2722 biosA0[0x25] = psxBios_toupper;
2723 biosA0[0x26] = psxBios_tolower;
2724 biosA0[0x27] = psxBios_bcopy;
2725 biosA0[0x28] = psxBios_bzero;
2726 biosA0[0x29] = psxBios_bcmp;
2727 biosA0[0x2a] = psxBios_memcpy;
2728 biosA0[0x2b] = psxBios_memset;
2729 biosA0[0x2c] = psxBios_memmove;
2730 biosA0[0x2d] = psxBios_memcmp;
2731 biosA0[0x2e] = psxBios_memchr;
2732 biosA0[0x2f] = psxBios_rand;
2733 biosA0[0x30] = psxBios_srand;
2734 biosA0[0x31] = psxBios_qsort;
2735 //biosA0[0x32] = psxBios_strtod;
2736 biosA0[0x33] = psxBios_malloc;
2737 biosA0[0x34] = psxBios_free;
2738 //biosA0[0x35] = psxBios_lsearch;
2739 //biosA0[0x36] = psxBios_bsearch;
2740 biosA0[0x37] = psxBios_calloc;
2741 biosA0[0x38] = psxBios_realloc;
2742 biosA0[0x39] = psxBios_InitHeap;
2743 //biosA0[0x3a] = psxBios__exit;
2744 biosA0[0x3b] = psxBios_getchar;
2745 biosA0[0x3c] = psxBios_putchar;
2746 //biosA0[0x3d] = psxBios_gets;
2747 //biosA0[0x40] = psxBios_sys_a0_40;
2748 //biosA0[0x41] = psxBios_LoadTest;
2749 biosA0[0x42] = psxBios_Load;
2750 biosA0[0x43] = psxBios_Exec;
2751 biosA0[0x44] = psxBios_FlushCache;
2752 //biosA0[0x45] = psxBios_InstallInterruptHandler;
2753 biosA0[0x46] = psxBios_GPU_dw;
2754 biosA0[0x47] = psxBios_mem2vram;
2755 biosA0[0x48] = psxBios_SendGPU;
2756 biosA0[0x49] = psxBios_GPU_cw;
2757 biosA0[0x4a] = psxBios_GPU_cwb;
2758 biosA0[0x4b] = psxBios_GPU_SendPackets;
2759 biosA0[0x4c] = psxBios_sys_a0_4c;
2760 biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2761 //biosA0[0x4e] = psxBios_GPU_sync;
2762 //biosA0[0x4f] = psxBios_sys_a0_4f;
2763 //biosA0[0x50] = psxBios_sys_a0_50;
2764 biosA0[0x51] = psxBios_LoadExec;
2765 //biosA0[0x52] = psxBios_GetSysSp;
2766 //biosA0[0x53] = psxBios_sys_a0_53;
2767 //biosA0[0x54] = psxBios__96_init_a54;
2768 //biosA0[0x55] = psxBios__bu_init_a55;
2769 //biosA0[0x56] = psxBios__96_remove_a56;
2770 //biosA0[0x57] = psxBios_sys_a0_57;
2771 //biosA0[0x58] = psxBios_sys_a0_58;
2772 //biosA0[0x59] = psxBios_sys_a0_59;
2773 //biosA0[0x5a] = psxBios_sys_a0_5a;
2774 //biosA0[0x5b] = psxBios_dev_tty_init;
2775 //biosA0[0x5c] = psxBios_dev_tty_open;
2776 //biosA0[0x5d] = psxBios_sys_a0_5d;
2777 //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2778 //biosA0[0x5f] = psxBios_dev_cd_open;
2779 //biosA0[0x60] = psxBios_dev_cd_read;
2780 //biosA0[0x61] = psxBios_dev_cd_close;
2781 //biosA0[0x62] = psxBios_dev_cd_firstfile;
2782 //biosA0[0x63] = psxBios_dev_cd_nextfile;
2783 //biosA0[0x64] = psxBios_dev_cd_chdir;
2784 //biosA0[0x65] = psxBios_dev_card_open;
2785 //biosA0[0x66] = psxBios_dev_card_read;
2786 //biosA0[0x67] = psxBios_dev_card_write;
2787 //biosA0[0x68] = psxBios_dev_card_close;
2788 //biosA0[0x69] = psxBios_dev_card_firstfile;
2789 //biosA0[0x6a] = psxBios_dev_card_nextfile;
2790 //biosA0[0x6b] = psxBios_dev_card_erase;
2791 //biosA0[0x6c] = psxBios_dev_card_undelete;
2792 //biosA0[0x6d] = psxBios_dev_card_format;
2793 //biosA0[0x6e] = psxBios_dev_card_rename;
2794 //biosA0[0x6f] = psxBios_dev_card_6f;
2795 biosA0[0x70] = psxBios__bu_init;
2796 biosA0[0x71] = psxBios__96_init;
2797 biosA0[0x72] = psxBios__96_remove;
2798 //biosA0[0x73] = psxBios_sys_a0_73;
2799 //biosA0[0x74] = psxBios_sys_a0_74;
2800 //biosA0[0x75] = psxBios_sys_a0_75;
2801 //biosA0[0x76] = psxBios_sys_a0_76;
2802 //biosA0[0x77] = psxBios_sys_a0_77;
2803 //biosA0[0x78] = psxBios__96_CdSeekL;
2804 //biosA0[0x79] = psxBios_sys_a0_79;
2805 //biosA0[0x7a] = psxBios_sys_a0_7a;
2806 //biosA0[0x7b] = psxBios_sys_a0_7b;
2807 //biosA0[0x7c] = psxBios__96_CdGetStatus;
2808 //biosA0[0x7d] = psxBios_sys_a0_7d;
2809 //biosA0[0x7e] = psxBios__96_CdRead;
2810 //biosA0[0x7f] = psxBios_sys_a0_7f;
2811 //biosA0[0x80] = psxBios_sys_a0_80;
2812 //biosA0[0x81] = psxBios_sys_a0_81;
2813 //biosA0[0x82] = psxBios_sys_a0_82;
2814 //biosA0[0x83] = psxBios_sys_a0_83;
2815 //biosA0[0x84] = psxBios_sys_a0_84;
2816 //biosA0[0x85] = psxBios__96_CdStop;
2817 //biosA0[0x86] = psxBios_sys_a0_86;
2818 //biosA0[0x87] = psxBios_sys_a0_87;
2819 //biosA0[0x88] = psxBios_sys_a0_88;
2820 //biosA0[0x89] = psxBios_sys_a0_89;
2821 //biosA0[0x8a] = psxBios_sys_a0_8a;
2822 //biosA0[0x8b] = psxBios_sys_a0_8b;
2823 //biosA0[0x8c] = psxBios_sys_a0_8c;
2824 //biosA0[0x8d] = psxBios_sys_a0_8d;
2825 //biosA0[0x8e] = psxBios_sys_a0_8e;
2826 //biosA0[0x8f] = psxBios_sys_a0_8f;
2827 //biosA0[0x90] = psxBios_sys_a0_90;
2828 //biosA0[0x91] = psxBios_sys_a0_91;
2829 //biosA0[0x92] = psxBios_sys_a0_92;
2830 //biosA0[0x93] = psxBios_sys_a0_93;
2831 //biosA0[0x94] = psxBios_sys_a0_94;
2832 //biosA0[0x95] = psxBios_sys_a0_95;
2833 //biosA0[0x96] = psxBios_AddCDROMDevice;
2834 //biosA0[0x97] = psxBios_AddMemCardDevide;
2835 //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2836 //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2837 //biosA0[0x9a] = psxBios_sys_a0_9a;
2838 //biosA0[0x9b] = psxBios_sys_a0_9b;
2839 //biosA0[0x9c] = psxBios_SetConf;
2840 //biosA0[0x9d] = psxBios_GetConf;
2841 //biosA0[0x9e] = psxBios_sys_a0_9e;
2842 biosA0[0x9f] = psxBios_SetMem;
2843 //biosA0[0xa0] = psxBios__boot;
2844 //biosA0[0xa1] = psxBios_SystemError;
2845 //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2846 //biosA0[0xa3] = psxBios_DequeueCdIntr;
2847 //biosA0[0xa4] = psxBios_sys_a0_a4;
2848 //biosA0[0xa5] = psxBios_ReadSector;
2849 //biosA0[0xa6] = psxBios_get_cd_status;
2850 //biosA0[0xa7] = psxBios_bufs_cb_0;
2851 //biosA0[0xa8] = psxBios_bufs_cb_1;
2852 //biosA0[0xa9] = psxBios_bufs_cb_2;
2853 //biosA0[0xaa] = psxBios_bufs_cb_3;
2854 biosA0[0xab] = psxBios__card_info;
2855 biosA0[0xac] = psxBios__card_load;
2856 //biosA0[0axd] = psxBios__card_auto;
2857 //biosA0[0xae] = psxBios_bufs_cd_4;
2858 //biosA0[0xaf] = psxBios_sys_a0_af;
2859 //biosA0[0xb0] = psxBios_sys_a0_b0;
2860 //biosA0[0xb1] = psxBios_sys_a0_b1;
2861 //biosA0[0xb2] = psxBios_do_a_long_jmp
2862 //biosA0[0xb3] = psxBios_sys_a0_b3;
2863 //biosA0[0xb4] = psxBios_sub_function;
2864//*******************B0 CALLS****************************
2865 //biosB0[0x00] = psxBios_SysMalloc;
2866 //biosB0[0x01] = psxBios_sys_b0_01;
2867 biosB0[0x02] = psxBios_SetRCnt;
2868 biosB0[0x03] = psxBios_GetRCnt;
2869 biosB0[0x04] = psxBios_StartRCnt;
2870 biosB0[0x05] = psxBios_StopRCnt;
2871 biosB0[0x06] = psxBios_ResetRCnt;
2872 biosB0[0x07] = psxBios_DeliverEvent;
2873 biosB0[0x08] = psxBios_OpenEvent;
2874 biosB0[0x09] = psxBios_CloseEvent;
2875 biosB0[0x0a] = psxBios_WaitEvent;
2876 biosB0[0x0b] = psxBios_TestEvent;
2877 biosB0[0x0c] = psxBios_EnableEvent;
2878 biosB0[0x0d] = psxBios_DisableEvent;
2879 biosB0[0x0e] = psxBios_OpenTh;
2880 biosB0[0x0f] = psxBios_CloseTh;
2881 biosB0[0x10] = psxBios_ChangeTh;
2882 //biosB0[0x11] = psxBios_psxBios_b0_11;
2883 biosB0[0x12] = psxBios_InitPAD;
2884 biosB0[0x13] = psxBios_StartPAD;
2885 biosB0[0x14] = psxBios_StopPAD;
2886 biosB0[0x15] = psxBios_PAD_init;
2887 biosB0[0x16] = psxBios_PAD_dr;
2888 biosB0[0x17] = psxBios_ReturnFromException;
2889 biosB0[0x18] = psxBios_ResetEntryInt;
2890 biosB0[0x19] = psxBios_HookEntryInt;
2891 //biosB0[0x1a] = psxBios_sys_b0_1a;
2892 //biosB0[0x1b] = psxBios_sys_b0_1b;
2893 //biosB0[0x1c] = psxBios_sys_b0_1c;
2894 //biosB0[0x1d] = psxBios_sys_b0_1d;
2895 //biosB0[0x1e] = psxBios_sys_b0_1e;
2896 //biosB0[0x1f] = psxBios_sys_b0_1f;
2897 biosB0[0x20] = psxBios_UnDeliverEvent;
2898 //biosB0[0x21] = psxBios_sys_b0_21;
2899 //biosB0[0x22] = psxBios_sys_b0_22;
2900 //biosB0[0x23] = psxBios_sys_b0_23;
2901 //biosB0[0x24] = psxBios_sys_b0_24;
2902 //biosB0[0x25] = psxBios_sys_b0_25;
2903 //biosB0[0x26] = psxBios_sys_b0_26;
2904 //biosB0[0x27] = psxBios_sys_b0_27;
2905 //biosB0[0x28] = psxBios_sys_b0_28;
2906 //biosB0[0x29] = psxBios_sys_b0_29;
2907 //biosB0[0x2a] = psxBios_sys_b0_2a;
2908 //biosB0[0x2b] = psxBios_sys_b0_2b;
2909 //biosB0[0x2c] = psxBios_sys_b0_2c;
2910 //biosB0[0x2d] = psxBios_sys_b0_2d;
2911 //biosB0[0x2e] = psxBios_sys_b0_2e;
2912 //biosB0[0x2f] = psxBios_sys_b0_2f;
2913 //biosB0[0x30] = psxBios_sys_b0_30;
2914 //biosB0[0x31] = psxBios_sys_b0_31;
2915 biosB0[0x32] = psxBios_open;
2916 biosB0[0x33] = psxBios_lseek;
2917 biosB0[0x34] = psxBios_read;
2918 biosB0[0x35] = psxBios_write;
2919 biosB0[0x36] = psxBios_close;
2920 //biosB0[0x37] = psxBios_ioctl;
2921 //biosB0[0x38] = psxBios_exit;
2922 //biosB0[0x39] = psxBios_sys_b0_39;
2923 //biosB0[0x3a] = psxBios_getc;
2924 //biosB0[0x3b] = psxBios_putc;
2925 biosB0[0x3c] = psxBios_getchar;
2926 //biosB0[0x3e] = psxBios_gets;
2927 //biosB0[0x40] = psxBios_cd;
e7e1f572 2928 biosB0[0x41] = psxBios_format;
ef79bbde
P		 2929 biosB0[0x42] = psxBios_firstfile;
2930 biosB0[0x43] = psxBios_nextfile;
2931 biosB0[0x44] = psxBios_rename;
2932 biosB0[0x45] = psxBios_delete;
2933 //biosB0[0x46] = psxBios_undelete;
2934 //biosB0[0x47] = psxBios_AddDevice;
2935 //biosB0[0x48] = psxBios_RemoteDevice;
2936 //biosB0[0x49] = psxBios_PrintInstalledDevices;
2937 biosB0[0x4a] = psxBios_InitCARD;
2938 biosB0[0x4b] = psxBios_StartCARD;
2939 biosB0[0x4c] = psxBios_StopCARD;
2940 //biosB0[0x4d] = psxBios_sys_b0_4d;
2941 biosB0[0x4e] = psxBios__card_write;
2942 biosB0[0x4f] = psxBios__card_read;
2943 biosB0[0x50] = psxBios__new_card;
2944 biosB0[0x51] = psxBios_Krom2RawAdd;
2945 //biosB0[0x52] = psxBios_sys_b0_52;
2946 //biosB0[0x53] = psxBios_sys_b0_53;
2947 //biosB0[0x54] = psxBios__get_errno;
002b2f7d 2948 biosB0[0x55] = psxBios__get_error;
ef79bbde
P		 2949 biosB0[0x56] = psxBios_GetC0Table;
2950 biosB0[0x57] = psxBios_GetB0Table;
e9fda093 2951 biosB0[0x58] = psxBios__card_chan;
ef79bbde
P		 2952 //biosB0[0x59] = psxBios_sys_b0_59;
2953 //biosB0[0x5a] = psxBios_sys_b0_5a;
2954 biosB0[0x5b] = psxBios_ChangeClearPad;
21af3ff6 2955 biosB0[0x5c] = psxBios__card_status;
ef79bbde
P		 2956 //biosB0[0x5d] = psxBios__card_wait;
2957//*******************C0 CALLS****************************
2958 //biosC0[0x00] = psxBios_InitRCnt;
2959 //biosC0[0x01] = psxBios_InitException;
2960 biosC0[0x02] = psxBios_SysEnqIntRP;
2961 biosC0[0x03] = psxBios_SysDeqIntRP;
2962 //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2963 //biosC0[0x05] = psxBios_get_free_TCB_slot;
2964 //biosC0[0x06] = psxBios_ExceptionHandler;
2965 //biosC0[0x07] = psxBios_InstallExeptionHandler;
2966 //biosC0[0x08] = psxBios_SysInitMemory;
2967 //biosC0[0x09] = psxBios_SysInitKMem;
2968 biosC0[0x0a] = psxBios_ChangeClearRCnt;
2969 //biosC0[0x0b] = psxBios_SystemError;
2970 //biosC0[0x0c] = psxBios_InitDefInt;
2971 //biosC0[0x0d] = psxBios_sys_c0_0d;
2972 //biosC0[0x0e] = psxBios_sys_c0_0e;
2973 //biosC0[0x0f] = psxBios_sys_c0_0f;
2974 //biosC0[0x10] = psxBios_sys_c0_10;
2975 //biosC0[0x11] = psxBios_sys_c0_11;
2976 //biosC0[0x12] = psxBios_InstallDevices;
2977 //biosC0[0x13] = psxBios_FlushStfInOutPut;
2978 //biosC0[0x14] = psxBios_sys_c0_14;
2979 //biosC0[0x15] = psxBios__cdevinput;
2980 //biosC0[0x16] = psxBios__cdevscan;
2981 //biosC0[0x17] = psxBios__circgetc;
2982 //biosC0[0x18] = psxBios__circputc;
2983 //biosC0[0x19] = psxBios_ioabort;
2984 //biosC0[0x1a] = psxBios_sys_c0_1a
2985 //biosC0[0x1b] = psxBios_KernelRedirect;
2986 //biosC0[0x1c] = psxBios_PatchAOTable;
2987//************** THE END ***************************************
2988/**/
2989 base = 0x1000;
2990 size = sizeof(EvCB) * 32;
2991 Event = (void *)&psxR[base]; base += size * 6;
2992 memset(Event, 0, size * 6);
2993 HwEV = Event;
2994 EvEV = Event + 32;
2995 RcEV = Event + 32 * 2;
2996 UeEV = Event + 32 * 3;
2997 SwEV = Event + 32 * 4;
2998 ThEV = Event + 32 * 5;
2999
3000 ptr = (u32 *)&psxM[0x0874]; // b0 table
3001 ptr[0] = SWAPu32(0x4c54 - 0x884);
3002
3003 ptr = (u32 *)&psxM[0x0674]; // c0 table
3004 ptr[6] = SWAPu32(0xc80);
3005
3006 memset(SysIntRP, 0, sizeof(SysIntRP));
3007 memset(Thread, 0, sizeof(Thread));
3008 Thread[0].status = 2; // main thread
3009
832f0c3c 3010 pad_stopped = 1;
c62b43c9 3011 jmp_int = NULL;
3012 pad_buf = NULL;
3013 pad_buf1 = NULL;
3014 pad_buf2 = NULL;
3015 pad_buf1len = pad_buf2len = 0;
3016 heap_addr = NULL;
3017 heap_end = NULL;
26b964b5 3018 heap_size = 0;
c62b43c9 3019 CardState = -1;
3020 CurThread = 0;
3021 memset(FDesc, 0, sizeof(FDesc));
832f0c3c 3022 card_active_chan = 0;
c62b43c9 3023
ef79bbde
P		 3024 psxMu32ref(0x0150) = SWAPu32(0x160);
3025 psxMu32ref(0x0154) = SWAPu32(0x320);
3026 psxMu32ref(0x0160) = SWAPu32(0x248);
3027 strcpy((char *)&psxM[0x248], "bu");
3028/* psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
3029 psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
3030 psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
3031 psxMu32ref(0x09e0) = SWAPu32(0x43d0);
3032 psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
3033*/
3034 // opcode HLE
3035 psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
3036 psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
3037 psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
3038 psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
3039 psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
3040 psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
3041 psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
3042 psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
3043 psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
3044 psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
3045
3046 // initial stack pointer for BIOS interrupt
3047 psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
3048
3049 // initial RNG seed
3050 psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
3051
3052 // fonts
3053 len = 0x80000 - 0x66000;
3054 uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
3055 len = 0x80000 - 0x69d68;
3056 uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
3057
3058 // memory size 2 MB
3059 psxHu32ref(0x1060) = SWAPu32(0x00000b88);
3060
3061 hleSoftCall = FALSE;
3062}
3063
3064void psxBiosShutdown() {
3065}
3066
3067#define psxBios_PADpoll(pad) { \
3068 PAD##pad##_startPoll(pad); \
3069 pad_buf##pad[0] = 0; \
3070 pad_buf##pad[1] = PAD##pad##_poll(0x42); \
3071 if (!(pad_buf##pad[1] & 0x0f)) { \
3072 bufcount = 32; \
3073 } else { \
3074 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
3075 } \
3076 PAD##pad##_poll(0); \
3077 i = 2; \
3078 while (bufcount--) { \
3079 pad_buf##pad[i++] = PAD##pad##_poll(0); \
3080 } \
3081}
3082
3083void biosInterrupt() {
3084 int i, bufcount;
3085
3086// if (psxHu32(0x1070) & 0x1) { // Vsync
3087 if (pad_buf != NULL) {
3088 u32 *buf = (u32*)pad_buf;
3089
3090 if (!Config.UseNet) {
3091 PAD1_startPoll(1);
3092 if (PAD1_poll(0x42) == 0x23) {
3093 PAD1_poll(0);
3094 *buf = PAD1_poll(0) << 8;
3095 *buf |= PAD1_poll(0);
3096 PAD1_poll(0);
3097 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
3098 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
3099 } else {
3100 PAD1_poll(0);
3101 *buf = PAD1_poll(0) << 8;
3102 *buf|= PAD1_poll(0);
3103 }
3104
3105 PAD2_startPoll(2);
3106 if (PAD2_poll(0x42) == 0x23) {
3107 PAD2_poll(0);
3108 *buf |= PAD2_poll(0) << 24;
3109 *buf |= PAD2_poll(0) << 16;
3110 PAD2_poll(0);
3111 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
3112 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
3113 } else {
3114 PAD2_poll(0);
3115 *buf |= PAD2_poll(0) << 24;
3116 *buf |= PAD2_poll(0) << 16;
3117 }
3118 } else {
3119 u16 data;
3120
3121 PAD1_startPoll(1);
3122 PAD1_poll(0x42);
3123 PAD1_poll(0);
3124 data = PAD1_poll(0) << 8;
3125 data |= PAD1_poll(0);
3126
3127 if (NET_sendPadData(&data, 2) == -1)
3128 netError();
3129
3130 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
3131 netError();
3132 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3133 netError();
3134 }
3135 }
3136 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3137 psxBios_PADpoll(1);
3138
3139 if (NET_sendPadData(pad_buf1, i) == -1)
3140 netError();
3141
3142 if (NET_recvPadData(pad_buf1, 1) == -1)
3143 netError();
3144 if (NET_recvPadData(pad_buf2, 2) == -1)
3145 netError();
3146 } else {
f25c285b 3147 if (!pad_stopped) {
3148 if (pad_buf1) {
3149 psxBios_PADpoll(1);
3150 }
ef79bbde 3151
f25c285b 3152 if (pad_buf2) {
3153 psxBios_PADpoll(2);
3154 }
ef79bbde
P		 3155 }
3156 }
3157
3158 if (psxHu32(0x1070) & 0x1) { // Vsync
3159 if (RcEV[3][1].status == EvStACTIVE) {
3160 softCall(RcEV[3][1].fhandler);
3161// hwWrite32(0x1f801070, ~(1));
3162 }
3163 }
3164
3165 if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3166 int i;
3167
3168 for (i = 0; i < 3; i++) {
3169 if (psxHu32(0x1070) & (1 << (i + 4))) {
3170 if (RcEV[i][1].status == EvStACTIVE) {
3171 softCall(RcEV[i][1].fhandler);
3172 }
3173 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3174 }
3175 }
3176 }
3177}
3178
3179void psxBiosException() {
3180 int i;
3181
3182 switch (psxRegs.CP0.n.Cause & 0x3c) {
3183 case 0x00: // Interrupt
3184#ifdef PSXCPU_LOG
3185// PSXCPU_LOG("interrupt\n");
3186#endif
3187 SaveRegs();
3188
3189 sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3190
3191 biosInterrupt();
3192
3193 for (i = 0; i < 8; i++) {
3194 if (SysIntRP[i]) {
3195 u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3196
3197 s0 = queue[2];
3198 softCall(queue[1]);
3199 }
3200 }
3201
3202 if (jmp_int != NULL) {
3203 int i;
3204
3205 psxHwWrite32(0x1f801070, 0xffffffff);
3206
3207 ra = jmp_int[0];
3208 sp = jmp_int[1];
3209 fp = jmp_int[2];
3210 for (i = 0; i < 8; i++) // s0-s7
3211 psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3212 gp = jmp_int[11];
3213
3214 v0 = 1;
3215 pc0 = ra;
3216 return;
3217 }
3218 psxHwWrite16(0x1f801070, 0);
3219 break;
3220
3221 case 0x20: // Syscall
3222#ifdef PSXCPU_LOG
3223 PSXCPU_LOG("syscall exp %x\n", a0);
3224#endif
3225 switch (a0) {
3226 case 1: // EnterCritical - disable irq's
79dad1b3 3227 /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3228 v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3229 psxRegs.CP0.n.Status &= ~0x404;
ef79bbde
P		 3230 break;
3231
3232 case 2: // ExitCritical - enable irq's
3233 psxRegs.CP0.n.Status |= 0x404;
3234 break;
a946d159 3235 /* Normally this should cover SYS(00h, SYS(04h but they don't do anything relevant so... */
3236 default:
3237 break;
ef79bbde
P		 3238 }
3239 pc0 = psxRegs.CP0.n.EPC + 4;
3240
3241 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3242 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3243 return;
3244
3245 default:
3246#ifdef PSXCPU_LOG
3247 PSXCPU_LOG("unknown bios exception!\n");
3248#endif
3249 break;
3250 }
3251
3252 pc0 = psxRegs.CP0.n.EPC;
3253 if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3254
3255 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3256 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3257}
3258
3259#define bfreeze(ptr, size) { \
3260 if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3261 if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3262 base += size; \
3263}
3264
3265#define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3266#define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3267
3268#define bfreezepsxMptr(ptr, type) { \
3269 if (Mode == 1) { \
3270 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3271 else psxRu32ref(base) = 0; \
3272 } else { \
3273 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3274 else (ptr) = NULL; \
3275 } \
3276 base += sizeof(u32); \
3277}
3278
3279void psxBiosFreeze(int Mode) {
3280 u32 base = 0x40000;
3281
f25c285b 3282 pad_stopped = 0;
ef79bbde
P		 3283 bfreezepsxMptr(jmp_int, u32);
3284 bfreezepsxMptr(pad_buf, int);
3285 bfreezepsxMptr(pad_buf1, char);
3286 bfreezepsxMptr(pad_buf2, char);
3287 bfreezepsxMptr(heap_addr, u32);
3288 bfreezel(&pad_buf1len);
3289 bfreezel(&pad_buf2len);
3290 bfreezes(regs);
3291 bfreezes(SysIntRP);
3292 bfreezel(&CardState);
3293 bfreezes(Thread);
3294 bfreezel(&CurThread);
3295 bfreezes(FDesc);
e9fda093 3296 bfreezel(&card_active_chan);
ef79bbde 3297}
ARM optimized PCSX fork