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psxbios: Add checks for memchr.
[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
f23c2241 310static unsigned interrupt_r26=0x8004E8B0;
311
ef79bbde
P		 312static inline void SaveRegs() {
313 memcpy(regs, psxRegs.GPR.r, 32*4);
314 regs[32] = psxRegs.GPR.n.lo;
315 regs[33] = psxRegs.GPR.n.hi;
316 regs[34] = psxRegs.pc;
317}
318
319static inline void LoadRegs() {
320 memcpy(psxRegs.GPR.r, regs, 32*4);
321 psxRegs.GPR.n.lo = regs[32];
322 psxRegs.GPR.n.hi = regs[33];
323}
324
325/* *
326// *
327// *
328// System calls A0 */
329
d99f6068 330
331#define buread(Ra1, mcd, length) { \
332 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); \
333 ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
334 memcpy(Ra1, ptr, length); \
f1514614 335 if (FDesc[1 + mcd].mode & 0x8000) { \
d99f6068 336 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
337 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
f1514614 338 v0 = 0; } \
d99f6068 339 else v0 = length; \
340 FDesc[1 + mcd].offset += v0; \
341}
342
343#define buwrite(Ra1, mcd, length) { \
344 u32 offset = + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
345 SysPrintf("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \
346 ptr = Mcd##mcd##Data + offset; \
347 memcpy(ptr, Ra1, length); \
f1514614 348 FDesc[1 + mcd].offset += length; \
349 if (FDesc[1 + mcd].mode & 0x8000) { \
d99f6068 350 DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
351 DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
f1514614 352 v0 = 0; } \
d99f6068 353 else v0 = length; \
354}
355
356
324cec89 357/* Internally redirects to "FileRead(fd,tempbuf,1)".*/
358/* For some strange reason, the returned character is sign-expanded; */
359/* So if a return value of FFFFFFFFh could mean either character FFh, or error. */
360/* TODO FIX ME : Properly implement this behaviour */
361void psxBios_getc(void) // 0x03, 0x35
362{
d99f6068 363 char *ptr;
324cec89 364 void *pa1 = Ra1;
365#ifdef PSXBIOS_LOG
366 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]);
367#endif
368 v0 = -1;
369
370 if (pa1) {
371 switch (a0) {
372 case 2: buread(pa1, 1, 1); break;
373 case 3: buread(pa1, 2, 1); break;
374 }
375 }
376
377 pc0 = ra;
378}
379
380/* Copy of psxBios_write, except size is 1. */
381void psxBios_putc(void) // 0x09, 0x3B
382{
d99f6068 383 char *ptr;
324cec89 384 void *pa1 = Ra1;
385#ifdef PSXBIOS_LOG
386 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]);
387#endif
388 v0 = -1;
389 if (!pa1) {
390 pc0 = ra;
391 return;
392 }
393
394 if (a0 == 1) { // stdout
395 char *ptr = (char *)pa1;
396
397 v0 = a2;
398 while (a2 > 0) {
399 printf("%c", *ptr++); a2--;
400 }
401 pc0 = ra; return;
402 }
403
404 switch (a0) {
405 case 2: buwrite(pa1, 1, 1); break;
406 case 3: buwrite(pa1, 2, 1); break;
407 }
408
409 pc0 = ra;
410}
ef79bbde 411
ba11675c 412void psxBios_todigit(void) // 0x0a
413{
414 int c = a0;
415#ifdef PSXBIOS_LOG
416 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]);
417#endif
418 c &= 0xFF;
419 if (c >= 0x30 && c < 0x3A) {
420 c -= 0x30;
421 }
422 else if (c > 0x60 && c < 0x7B) {
423 c -= 0x20;
424 }
425 else if (c > 0x40 && c < 0x5B) {
426 c = c - 0x41 + 10;
427 }
428 else if (c >= 0x80) {
429 c = -1;
430 }
431 else
432 {
433 c = 0x0098967F;
434 }
435 v0 = c;
436 pc0 = ra;
437}
438
ef79bbde
P		 439void psxBios_abs() { // 0x0e
440 if ((s32)a0 < 0) v0 = -(s32)a0;
441 else v0 = a0;
442 pc0 = ra;
443}
444
445void psxBios_labs() { // 0x0f
446 psxBios_abs();
447}
448
449void psxBios_atoi() { // 0x10
450 s32 n = 0, f = 0;
451 char *p = (char *)Ra0;
452
453 for (;;p++) {
454 switch (*p) {
455 case ' ': case '\t': continue;
456 case '-': f++;
457 case '+': p++;
458 }
459 break;
460 }
461
462 while (*p >= '0' && *p <= '9') {
463 n = n * 10 + *p++ - '0';
464 }
465
466 v0 = (f ? -n : n);
467 pc0 = ra;
468}
469
470void psxBios_atol() { // 0x11
471 psxBios_atoi();
472}
473
474void psxBios_setjmp() { // 0x13
475 u32 *jmp_buf = (u32 *)Ra0;
476 int i;
477
478#ifdef PSXBIOS_LOG
479 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x13]);
480#endif
481
482 jmp_buf[0] = ra;
483 jmp_buf[1] = sp;
484 jmp_buf[2] = fp;
485 for (i = 0; i < 8; i++) // s0-s7
486 jmp_buf[3 + i] = psxRegs.GPR.r[16 + i];
487 jmp_buf[11] = gp;
488
489 v0 = 0; pc0 = ra;
490}
491
492void psxBios_longjmp() { // 0x14
493 u32 *jmp_buf = (u32 *)Ra0;
494 int i;
495
496#ifdef PSXBIOS_LOG
497 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]);
498#endif
499
500 ra = jmp_buf[0]; /* ra */
501 sp = jmp_buf[1]; /* sp */
502 fp = jmp_buf[2]; /* fp */
503 for (i = 0; i < 8; i++) // s0-s7
504 psxRegs.GPR.r[16 + i] = jmp_buf[3 + i];
505 gp = jmp_buf[11]; /* gp */
506
507 v0 = a1; pc0 = ra;
508}
509
510void psxBios_strcat() { // 0x15
511 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
512
513#ifdef PSXBIOS_LOG
514 PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1);
515#endif
bee52312 516 if (a0 == 0 || a1 == 0)
517 {
518 v0 = 0;
519 pc0 = ra;
520 return;
521 }
ef79bbde
P		 522 while (*p1++);
523 --p1;
524 while ((*p1++ = *p2++) != '\0');
525
526 v0 = a0; pc0 = ra;
527}
528
529void psxBios_strncat() { // 0x16
530 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
531 s32 n = a2;
532
533#ifdef PSXBIOS_LOG
534 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2);
535#endif
f42e1e90 536 if (a0 == 0 || a1 == 0)
537 {
538 v0 = 0;
539 pc0 = ra;
540 return;
541 }
ef79bbde
P		 542 while (*p1++);
543 --p1;
544 while ((*p1++ = *p2++) != '\0') {
545 if (--n < 0) {
546 *--p1 = '\0';
547 break;
548 }
549 }
550
551 v0 = a0; pc0 = ra;
552}
553
554void psxBios_strcmp() { // 0x17
555 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
c044e3e5 556 s32 n=0;
557 if (a0 == 0 && a1 == 0)
558 {
559 v0 = 0;
560 pc0 = ra;
561 return;
562 }
563 else if (a0 == 0 && a1 != 0)
564 {
565 v0 = -1;
566 pc0 = ra;
567 return;
568 }
569 else if (a0 != 0 && a1 == 0)
570 {
571 v0 = 1;
572 pc0 = ra;
573 return;
574 }
ef79bbde
P		 575#ifdef PSXBIOS_LOG
576 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1);
577#endif
578
579 while (*p1 == *p2++) {
c044e3e5 580 n++;
ef79bbde 581 if (*p1++ == '\0') {
c044e3e5 582 v1=n-1;
583 a0+=n;
584 a1+=n;
ef79bbde
P		 585 v0 = 0;
586 pc0 = ra;
587 return;
588 }
589 }
590
591 v0 = (*p1 - *--p2);
c044e3e5 592 v1 = n;
593 a0+=n;
594 a1+=n;
ef79bbde
P		 595 pc0 = ra;
596}
597
598void psxBios_strncmp() { // 0x18
599 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
600 s32 n = a2;
ba4ecb8c 601 if (a0 == 0 && a1 == 0)
602 {
603 v0 = 0;
604 pc0 = ra;
605 return;
606 }
607 else if (a0 == 0 && a1 != 0)
608 {
609 v0 = -1;
610 pc0 = ra;
611 return;
612 }
613 else if (a0 != 0 && a1 == 0)
614 {
615 v0 = 1;
616 pc0 = ra;
617 return;
618 }
ef79bbde
P		 619#ifdef PSXBIOS_LOG
620 PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2);
621#endif
622
623 while (--n >= 0 && *p1 == *p2++) {
624 if (*p1++ == '\0') {
625 v0 = 0;
626 pc0 = ra;
ba4ecb8c 627 v1 = a2 - ((a2-n) - 1);
628 a0 += (a2-n) - 1;
629 a1 += (a2-n) - 1;
630 a2 = n;
ef79bbde
P		 631 return;
632 }
633 }
634
635 v0 = (n < 0 ? 0 : *p1 - *--p2);
636 pc0 = ra;
ba4ecb8c 637 v1 = a2 - ((a2-n) - 1);
638 a0 += (a2-n) - 1;
639 a1 += (a2-n) - 1;
640 a2 = n;
ef79bbde
P		 641}
642
643void psxBios_strcpy() { // 0x19
644 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
c3d791f1 645 if (a0 == 0 || a1 == 0)
646 {
647 v0 = 0;
648 pc0 = ra;
649 return;
650 }
ef79bbde
P		 651 while ((*p1++ = *p2++) != '\0');
652
653 v0 = a0; pc0 = ra;
654}
655
656void psxBios_strncpy() { // 0x1a
657 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
658 s32 n = a2, i;
c3d791f1 659 if (a0 == 0 || a1 == 0)
660 {
661 v0 = 0;
662 pc0 = ra;
663 return;
664 }
ef79bbde
P		 665 for (i = 0; i < n; i++) {
666 if ((*p1++ = *p2++) == '\0') {
667 while (++i < n) {
668 *p1++ = '\0';
669 }
670 v0 = a0; pc0 = ra;
671 return;
672 }
673 }
674
675 v0 = a0; pc0 = ra;
676}
677
678void psxBios_strlen() { // 0x1b
679 char *p = (char *)Ra0;
680 v0 = 0;
2c6a5df8 681 if (a0 == 0)
682 {
683 pc0 = ra;
684 return;
685 }
ef79bbde
P		 686 while (*p++) v0++;
687 pc0 = ra;
688}
689
690void psxBios_index() { // 0x1c
691 char *p = (char *)Ra0;
fcf7ec6c 692 if (a0 == 0)
693 {
694 v0 = 0;
695 pc0 = ra;
696 return;
697 }
698
ef79bbde
P		 699 do {
700 if (*p == a1) {
701 v0 = a0 + (p - (char *)Ra0);
702 pc0 = ra;
703 return;
704 }
705 } while (*p++ != '\0');
706
707 v0 = 0; pc0 = ra;
708}
709
710void psxBios_rindex() { // 0x1d
711 char *p = (char *)Ra0;
712
713 v0 = 0;
fcf7ec6c 714 if (a0 == 0)
715 {
716 pc0 = ra;
717 return;
718 }
ef79bbde
P		 719 do {
720 if (*p == a1)
721 v0 = a0 + (p - (char *)Ra0);
722 } while (*p++ != '\0');
723
724 pc0 = ra;
725}
726
727void psxBios_strchr() { // 0x1e
728 psxBios_index();
729}
730
731void psxBios_strrchr() { // 0x1f
732 psxBios_rindex();
733}
734
735void psxBios_strpbrk() { // 0x20
736 char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc;
737
738 while ((c = *p1++) != '\0') {
739 for (scanp = p2; (sc = *scanp++) != '\0';) {
740 if (sc == c) {
741 v0 = a0 + (p1 - 1 - (char *)Ra0);
742 pc0 = ra;
743 return;
744 }
745 }
746 }
747
748 // BUG: return a0 instead of NULL if not found
749 v0 = a0; pc0 = ra;
750}
751
752void psxBios_strspn() { // 0x21
753 char *p1, *p2;
754
755 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
756 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
757 if (*p2 == '\0') break;
758 }
759
760 v0 = p1 - (char *)Ra0; pc0 = ra;
761}
762
763void psxBios_strcspn() { // 0x22
764 char *p1, *p2;
765
766 for (p1 = (char *)Ra0; *p1 != '\0'; p1++) {
767 for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++);
768 if (*p2 != '\0') break;
769 }
770
771 v0 = p1 - (char *)Ra0; pc0 = ra;
772}
773
774void psxBios_strtok() { // 0x23
775 char *pcA0 = (char *)Ra0;
776 char *pcRet = strtok(pcA0, (char *)Ra1);
777 if (pcRet)
778 v0 = a0 + pcRet - pcA0;
779 else
780 v0 = 0;
781 pc0 = ra;
782}
783
784void psxBios_strstr() { // 0x24
785 char *p = (char *)Ra0, *p1, *p2;
786
787 while (*p != '\0') {
788 p1 = p;
789 p2 = (char *)Ra1;
790
791 while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) {
792 p1++; p2++;
793 }
794
795 if (*p2 == '\0') {
796 v0 = a0 + (p - (char *)Ra0);
797 pc0 = ra;
798 return;
799 }
800
801 p++;
802 }
803
804 v0 = 0; pc0 = ra;
805}
806
807void psxBios_toupper() { // 0x25
808 v0 = (s8)(a0 & 0xff);
809 if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A';
810 pc0 = ra;
811}
812
813void psxBios_tolower() { // 0x26
814 v0 = (s8)(a0 & 0xff);
815 if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A';
816 pc0 = ra;
817}
818
819void psxBios_bcopy() { // 0x27
820 char *p1 = (char *)Ra1, *p2 = (char *)Ra0;
0148ffb7 821 v0 = a0;
822 if (a0 == 0 || a2 > 0x7FFFFFFF)
823 {
824 pc0 = ra;
825 return;
826 }
5ec7acdf 827 while ((s32)a2-- > 0) *p1++ = *p2++;
0148ffb7 828 a2 = 0;
ef79bbde
P		 829 pc0 = ra;
830}
831
832void psxBios_bzero() { // 0x28
833 char *p = (char *)Ra0;
01724d23 834 v0 = a0;
835 /* Same as memset here (See memset below) */
836 if (a1 > 0x7FFFFFFF || a1 == 0)
837 {
838 v0 = 0;
839 pc0 = ra;
840 return;
841 }
842 else if (a0 == 0)
843 {
844 pc0 = ra;
845 return;
846 }
5ec7acdf 847 while ((s32)a1-- > 0) *p++ = '\0';
01724d23 848 a1 = 0;
ef79bbde
P		 849 pc0 = ra;
850}
851
852void psxBios_bcmp() { // 0x29
853 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
854
855 if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; }
856
5ec7acdf 857 while ((s32)a2-- > 0) {
ef79bbde
P		 858 if (*p1++ != *p2++) {
859 v0 = *p1 - *p2; // BUG: compare the NEXT byte
860 pc0 = ra;
861 return;
862 }
863 }
864
865 v0 = 0; pc0 = ra;
866}
867
868void psxBios_memcpy() { // 0x2a
869 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
ef1da3dc 870 v0 = a0;
871 if (a0 == 0 || a2 > 0x7FFFFFFF)
872 {
873 pc0 = ra;
874 return;
875 }
876 while ((s32)a2-- > 0) {
ef1da3dc 877 *p1++ = *p2++;
878 }
879 a2 = 0;
880 pc0 = ra;
ef79bbde
P		 881}
882
883void psxBios_memset() { // 0x2b
884 char *p = (char *)Ra0;
3f28b64f 885 v0 = a0;
886 if (a2 > 0x7FFFFFFF || a2 == 0)
887 {
888 v0 = 0;
889 pc0 = ra;
890 return;
891 }
892 if (a0 == 0)
893 {
894 pc0 = ra;
895 return;
896 }
5ec7acdf 897 while ((s32)a2-- > 0) *p++ = (char)a1;
5ec7acdf 898 a2 = 0;
ef79bbde
P		 899 v0 = a0; pc0 = ra;
900}
901
902void psxBios_memmove() { // 0x2c
903 char *p1 = (char *)Ra0, *p2 = (char *)Ra1;
112dddf5 904 v0 = a0;
905 if (a0 == 0 || a2 > 0x7FFFFFFF)
906 {
907 pc0 = ra;
908 return;
909 }
ef79bbde
P		 910 if (p2 <= p1 && p2 + a2 > p1) {
911 a2++; // BUG: copy one more byte here
912 p1 += a2;
913 p2 += a2;
5ec7acdf 914 while ((s32)a2-- > 0) *--p1 = *--p2;
ef79bbde 915 } else {
5ec7acdf 916 while ((s32)a2-- > 0) *p1++ = *p2++;
ef79bbde 917 }
112dddf5 918 pc0 = ra;
ef79bbde
P		 919}
920
921void psxBios_memcmp() { // 0x2d
922 psxBios_bcmp();
923}
924
925void psxBios_memchr() { // 0x2e
926 char *p = (char *)Ra0;
0f598f20 927
928 if (a0 == 0 || a2 > 0x7FFFFFFF)
929 {
930 pc0 = ra;
931 return;
932 }
ef79bbde 933
5ec7acdf 934 while ((s32)a2-- > 0) {
ef79bbde
P		 935 if (*p++ != (s8)a1) continue;
936 v0 = a0 + (p - (char *)Ra0 - 1);
937 pc0 = ra;
938 return;
939 }
940
941 v0 = 0; pc0 = ra;
942}
943
944void psxBios_rand() { // 0x2f
945 u32 s = psxMu32(0x9010) * 1103515245 + 12345;
946 v0 = (s >> 16) & 0x7fff;
947 psxMu32ref(0x9010) = SWAPu32(s);
948 pc0 = ra;
949}
950
951void psxBios_srand() { // 0x30
952 psxMu32ref(0x9010) = SWAPu32(a0);
953 pc0 = ra;
954}
955
956static u32 qscmpfunc, qswidth;
957
958static inline int qscmp(char *a, char *b) {
959 u32 sa0 = a0;
960
961 a0 = sa0 + (a - (char *)PSXM(sa0));
962 a1 = sa0 + (b - (char *)PSXM(sa0));
963
964 softCall2(qscmpfunc);
965
966 a0 = sa0;
967 return (s32)v0;
968}
969
970static inline void qexchange(char *i, char *j) {
971 char t;
972 int n = qswidth;
973
974 do {
975 t = *i;
976 *i++ = *j;
977 *j++ = t;
978 } while (--n);
979}
980
981static inline void q3exchange(char *i, char *j, char *k) {
982 char t;
983 int n = qswidth;
984
985 do {
986 t = *i;
987 *i++ = *k;
988 *k++ = *j;
989 *j++ = t;
990 } while (--n);
991}
992
993static void qsort_main(char *a, char *l) {
994 char *i, *j, *lp, *hp;
995 int c;
996 unsigned int n;
997
998start:
999 if ((n = l - a) <= qswidth)
1000 return;
1001 n = qswidth * (n / (2 * qswidth));
1002 hp = lp = a + n;
1003 i = a;
1004 j = l - qswidth;
1005 while (TRUE) {
1006 if (i < lp) {
1007 if ((c = qscmp(i, lp)) == 0) {
1008 qexchange(i, lp -= qswidth);
1009 continue;
1010 }
1011 if (c < 0) {
1012 i += qswidth;
1013 continue;
1014 }
1015 }
1016
1017loop:
1018 if (j > hp) {
1019 if ((c = qscmp(hp, j)) == 0) {
1020 qexchange(hp += qswidth, j);
1021 goto loop;
1022 }
1023 if (c > 0) {
1024 if (i == lp) {
1025 q3exchange(i, hp += qswidth, j);
1026 i = lp += qswidth;
1027 goto loop;
1028 }
1029 qexchange(i, j);
1030 j -= qswidth;
1031 i += qswidth;
1032 continue;
1033 }
1034 j -= qswidth;
1035 goto loop;
1036 }
1037
1038 if (i == lp) {
1039 if (lp - a >= l - hp) {
1040 qsort_main(hp + qswidth, l);
1041 l = lp;
1042 } else {
1043 qsort_main(a, lp);
1044 a = hp + qswidth;
1045 }
1046 goto start;
1047 }
1048
1049 q3exchange(j, lp -= qswidth, i);
1050 j = hp -= qswidth;
1051 }
1052}
1053
1054void psxBios_qsort() { // 0x31
1055 qswidth = a2;
1056 qscmpfunc = a3;
1057 qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
1058
1059 pc0 = ra;
1060}
1061
1062void psxBios_malloc() { // 0x33
808a13bd 1063 unsigned int *chunk, *newchunk = NULL;
1064 unsigned int dsize = 0, csize, cstat;
ef79bbde
P		 1065 int colflag;
1066#ifdef PSXBIOS_LOG
1067 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
1068#endif
26b964b5 1069 if (!a0 || (!heap_size || !heap_addr)) {
1070 v0 = 0;
1071 pc0 = ra;
1072 return;
1073 }
ef79bbde
P		 1074
1075 // scan through heap and combine free chunks of space
1076 chunk = heap_addr;
1077 colflag = 0;
1078 while(chunk < heap_end) {
1079 // get size and status of actual chunk
1080 csize = ((u32)*chunk) & 0xfffffffc;
1081 cstat = ((u32)*chunk) & 1;
1082
26b964b5 1083 // most probably broken heap descriptor
1084 // this fixes Burning Road
1085 if (*chunk == 0) {
1086 newchunk = chunk;
1087 dsize = ((uptr)heap_end - (uptr)chunk) - 4;
1088 colflag = 1;
1089 break;
1090 }
1091
ef79bbde
P		 1092 // it's a free chunk
1093 if(cstat == 1) {
1094 if(colflag == 0) {
1095 newchunk = chunk;
1096 dsize = csize;
1097 colflag = 1; // let's begin a new collection of free memory
1098 }
1099 else dsize += (csize+4); // add the new size including header
1100 }
1101 // not a free chunk: did we start a collection ?
1102 else {
1103 if(colflag == 1) { // collection is over
1104 colflag = 0;
1105 *newchunk = SWAP32(dsize | 1);
1106 }
1107 }
1108
1109 // next chunk
1110 chunk = (u32*)((uptr)chunk + csize + 4);
1111 }
1112 // if neccessary free memory on end of heap
1113 if (colflag == 1)
1114 *newchunk = SWAP32(dsize | 1);
1115
1116 chunk = heap_addr;
1117 csize = ((u32)*chunk) & 0xfffffffc;
1118 cstat = ((u32)*chunk) & 1;
1119 dsize = (a0 + 3) & 0xfffffffc;
1120
1121 // exit on uninitialized heap
1122 if (chunk == NULL) {
26b964b5 1123 printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
ef79bbde
P		 1124 v0 = 0;
1125 pc0 = ra;
1126 return;
1127 }
1128
1129 // search an unused chunk that is big enough until the end of the heap
26b964b5 1130 while ((dsize > csize || cstat==0) && chunk < heap_end ) {
ef79bbde 1131 chunk = (u32*)((uptr)chunk + csize + 4);
26b964b5 1132
1133 // catch out of memory
1134 if(chunk >= heap_end) {
1135 printf("malloc %x,%x: Out of memory error!\n",
1136 v0, a0);
1137 v0 = 0; pc0 = ra;
1138 return;
1139 }
1140
ef79bbde
P		 1141 csize = ((u32)*chunk) & 0xfffffffc;
1142 cstat = ((u32)*chunk) & 1;
1143 }
1144
ef79bbde
P		 1145 // allocate memory
1146 if(dsize == csize) {
1147 // chunk has same size
1148 *chunk &= 0xfffffffc;
26b964b5 1149 } else if (dsize > csize) {
1150 v0 = 0; pc0 = ra;
1151 return;
1152 } else {
ef79bbde
P		 1153 // split free chunk
1154 *chunk = SWAP32(dsize);
1155 newchunk = (u32*)((uptr)chunk + dsize + 4);
808a13bd 1156 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
ef79bbde
P		 1157 }
1158
1159 // return pointer to allocated memory
26b964b5 1160 v0 = ((uptr)chunk - (uptr)psxM) + 4;
ef79bbde 1161 v0|= 0x80000000;
26b964b5 1162 //printf ("malloc %x,%x\n", v0, a0);
ef79bbde
P		 1163 pc0 = ra;
1164}
1165
1166void psxBios_free() { // 0x34
1167
1168#ifdef PSXBIOS_LOG
1169 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1170#endif
1171
1172 SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1173
ba4ecb8c 1174 if (a0)
1175 *(u32*)(Ra0-4) |= 1; // set chunk to free
ef79bbde
P		 1176 pc0 = ra;
1177}
1178
1179void psxBios_calloc() { // 0x37
02949f79 1180 void *pv0;
ef79bbde
P		 1181#ifdef PSXBIOS_LOG
1182 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1183#endif
1184
1185 a0 = a0 * a1;
1186 psxBios_malloc();
02949f79 1187 pv0 = Rv0;
1188 if (pv0)
1189 memset(pv0, 0, a0);
ef79bbde
P		 1190}
1191
1192void psxBios_realloc() { // 0x38
1193 u32 block = a0;
1194 u32 size = a1;
1195#ifdef PSXBIOS_LOG
1196 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1197#endif
1198
1199 a0 = block;
391b1d5b 1200 /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1201 if (block == 0)
1202 {
1203 psxBios_malloc();
1204 }
1205 /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1206 else if (size == 0)
1207 {
1208 psxBios_free();
1209 }
1210 /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1211 /* Note that it is not quite implemented this way here. */
1212 else
1213 {
1214 psxBios_free();
1215 a0 = size;
1216 psxBios_malloc();
1217 }
ef79bbde
P		 1218}
1219
1220
1221/* InitHeap(void *block , int n) */
1222void psxBios_InitHeap() { // 0x39
1223 unsigned int size;
1224
1225#ifdef PSXBIOS_LOG
1226 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1227#endif
1228
1229 if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1230 else size = a1;
1231
1232 size &= 0xfffffffc;
1233
1234 heap_addr = (u32 *)Ra0;
a85ffa0e 1235 heap_size = size;
1236 heap_end = (u32 *)((u8 *)heap_addr + heap_size);
1237 /* HACKFIX: Commenting out this line fixes GTA2 crash */
1238 //*heap_addr = SWAP32(size | 1);
ef79bbde 1239
c979c3ee 1240 SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
ef79bbde
P		 1241
1242 pc0 = ra;
1243}
1244
1245void psxBios_getchar() { //0x3b
1246 v0 = getchar(); pc0 = ra;
1247}
1248
1249void psxBios_printf() { // 0x3f
1250 char tmp[1024];
1251 char tmp2[1024];
1252 u32 save[4];
1253 char *ptmp = tmp;
1254 int n=1, i=0, j;
02949f79 1255 void *psp;
1256
1257 psp = PSXM(sp);
1258 if (psp) {
1259 memcpy(save, psp, 4 * 4);
1260 psxMu32ref(sp) = SWAP32((u32)a0);
1261 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1262 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1263 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1264 }
ef79bbde
P		 1265
1266 while (Ra0[i]) {
1267 switch (Ra0[i]) {
1268 case '%':
1269 j = 0;
1270 tmp2[j++] = '%';
1271_start:
1272 switch (Ra0[++i]) {
1273 case '.':
1274 case 'l':
1275 tmp2[j++] = Ra0[i]; goto _start;
1276 default:
1277 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1278 tmp2[j++] = Ra0[i];
1279 goto _start;
1280 }
1281 break;
1282 }
1283 tmp2[j++] = Ra0[i];
1284 tmp2[j] = 0;
1285
1286 switch (Ra0[i]) {
1287 case 'f': case 'F':
1288 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1289 case 'a': case 'A':
1290 case 'e': case 'E':
1291 case 'g': case 'G':
1292 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1293 case 'p':
888468ff 1294 case 'i': case 'u':
ef79bbde
P		 1295 case 'd': case 'D':
1296 case 'o': case 'O':
1297 case 'x': case 'X':
1298 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1299 case 'c':
1300 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1301 case 's':
1302 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1303 case '%':
1304 *ptmp++ = Ra0[i]; break;
1305 }
1306 i++;
1307 break;
1308 default:
1309 *ptmp++ = Ra0[i++];
1310 }
1311 }
1312 *ptmp = 0;
1313
02949f79 1314 if (psp)
1315 memcpy(psp, save, 4 * 4);
ef79bbde 1316
808a13bd 1317 SysPrintf("%s", tmp);
ef79bbde
P		 1318
1319 pc0 = ra;
1320}
1321
e7e1f572 1322void psxBios_format() { // 0x41
1323 if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1324 {
1325 CreateMcd(Config.Mcd1);
1326 LoadMcd(1, Config.Mcd1);
1327 v0 = 1;
1328 }
1329 else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1330 {
1331 CreateMcd(Config.Mcd2);
1332 LoadMcd(2, Config.Mcd2);
1333 v0 = 1;
1334 }
1335 else
1336 {
1337 v0 = 0;
1338 }
1339 pc0 = ra;
1340}
1341
ef79bbde
P		 1342/*
1343 * long Load(char *name, struct EXEC *header);
1344 */
1345
1346void psxBios_Load() { // 0x42
1347 EXE_HEADER eheader;
02949f79 1348 void *pa1;
ef79bbde
P		 1349
1350#ifdef PSXBIOS_LOG
1351 PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1352#endif
1353
02949f79 1354 pa1 = Ra1;
1355 if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1356 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
ef79bbde
P		 1357 v0 = 1;
1358 } else v0 = 0;
1359
1360 pc0 = ra;
1361}
1362
1363/*
1364 * int Exec(struct EXEC *header , int argc , char **argv);
1365 */
1366
1367void psxBios_Exec() { // 43
1368 EXEC *header = (EXEC*)Ra0;
1369 u32 tmp;
1370
1371#ifdef PSXBIOS_LOG
1372 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1373#endif
1374
1375 header->_sp = sp;
1376 header->_fp = fp;
1377 header->_sp = sp;
1378 header->_gp = gp;
1379 header->ret = ra;
1380 header->base = s0;
1381
1382 if (header->S_addr != 0) {
1383 tmp = header->S_addr + header->s_size;
1384 sp = tmp;
1385 fp = sp;
1386 }
1387
1388 gp = header->gp0;
1389
1390 s0 = a0;
1391
1392 a0 = a1;
1393 a1 = a2;
1394
1395 ra = 0x8000;
1396 pc0 = header->_pc0;
1397}
1398
1399void psxBios_FlushCache() { // 44
1400#ifdef PSXBIOS_LOG
1401 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1402#endif
1403
1404 pc0 = ra;
1405}
1406
1407void psxBios_GPU_dw() { // 0x46
1408 int size;
1409 s32 *ptr;
1410
1411#ifdef PSXBIOS_LOG
1412 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1413#endif
1414
1415 GPU_writeData(0xa0000000);
1416 GPU_writeData((a1<<16)|(a0&0xffff));
1417 GPU_writeData((a3<<16)|(a2&0xffff));
1418 size = (a2*a3+1)/2;
1419 ptr = (s32*)PSXM(Rsp[4]); //that is correct?
1420 do {
1421 GPU_writeData(SWAP32(*ptr));
1422 ptr++;
1423 } while(--size);
1424
1425 pc0 = ra;
1426}
1427
1428void psxBios_mem2vram() { // 0x47
1429 int size;
1430
1431 GPU_writeData(0xa0000000);
1432 GPU_writeData((a1<<16)|(a0&0xffff));
1433 GPU_writeData((a3<<16)|(a2&0xffff));
1434 size = (a2*a3+1)/2;
1435 GPU_writeStatus(0x04000002);
1436 psxHwWrite32(0x1f8010f4,0);
1437 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1438 psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1439 psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1440 psxHwWrite32(0x1f8010a8,0x01000201);
1441
1442 pc0 = ra;
1443}
1444
1445void psxBios_SendGPU() { // 0x48
1446 GPU_writeStatus(a0);
ddbaf678 1447 gpuSyncPluginSR();
ef79bbde
P		 1448 pc0 = ra;
1449}
1450
1451void psxBios_GPU_cw() { // 0x49
1452 GPU_writeData(a0);
1453 pc0 = ra;
1454}
1455
1456void psxBios_GPU_cwb() { // 0x4a
1457 s32 *ptr = (s32*)Ra0;
1458 int size = a1;
1459 while(size--) {
1460 GPU_writeData(SWAP32(*ptr));
1461 ptr++;
1462 }
1463
1464 pc0 = ra;
1465}
1466
1467void psxBios_GPU_SendPackets() { //4b:
1468 GPU_writeStatus(0x04000002);
1469 psxHwWrite32(0x1f8010f4,0);
1470 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1471 psxHwWrite32(0x1f8010a0,a0);
1472 psxHwWrite32(0x1f8010a4,0);
1473 psxHwWrite32(0x1f8010a8,0x010000401);
1474 pc0 = ra;
1475}
1476
1477void psxBios_sys_a0_4c() { // 0x4c GPU relate
1478 psxHwWrite32(0x1f8010a8,0x00000401);
1479 GPU_writeData(0x0400000);
1480 GPU_writeData(0x0200000);
1481 GPU_writeData(0x0100000);
cd1ea245 1482 v0 = 0x1f801814;
ef79bbde
P		 1483 pc0 = ra;
1484}
1485
1486void psxBios_GPU_GetGPUStatus() { // 0x4d
1487 v0 = GPU_readStatus();
1488 pc0 = ra;
1489}
1490
1491#undef s_addr
1492
1493void psxBios_LoadExec() { // 51
1494 EXEC *header = (EXEC*)PSXM(0xf000);
1495 u32 s_addr, s_size;
1496
1497#ifdef PSXBIOS_LOG
1498 PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1499#endif
1500 s_addr = a1; s_size = a2;
1501
1502 a1 = 0xf000;
1503 psxBios_Load();
1504
1505 header->S_addr = s_addr;
1506 header->s_size = s_size;
1507
1508 a0 = 0xf000; a1 = 0; a2 = 0;
1509 psxBios_Exec();
1510}
1511
1512void psxBios__bu_init() { // 70
1513#ifdef PSXBIOS_LOG
1514 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1515#endif
1516
1517 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1518 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1519
1520 pc0 = ra;
1521}
1522
1523void psxBios__96_init() { // 71
1524#ifdef PSXBIOS_LOG
1525 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1526#endif
1527
1528 pc0 = ra;
1529}
1530
1531void psxBios__96_remove() { // 72
1532#ifdef PSXBIOS_LOG
1533 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1534#endif
1535
1536 pc0 = ra;
1537}
1538
1539void psxBios_SetMem() { // 9f
1540 u32 new = psxHu32(0x1060);
1541
1542#ifdef PSXBIOS_LOG
1543 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1544#endif
1545
1546 switch(a0) {
1547 case 2:
1548 psxHu32ref(0x1060) = SWAP32(new);
1549 psxMu32ref(0x060) = a0;
1550 SysPrintf("Change effective memory : %d MBytes\n",a0);
1551 break;
1552
1553 case 8:
1554 psxHu32ref(0x1060) = SWAP32(new | 0x300);
1555 psxMu32ref(0x060) = a0;
1556 SysPrintf("Change effective memory : %d MBytes\n",a0);
1557
1558 default:
1559 SysPrintf("Effective memory must be 2/8 MBytes\n");
1560 break;
1561 }
1562
1563 pc0 = ra;
1564}
1565
18dd7e9e 1566/* TODO FIXME : Not compliant. -1 indicates failure but using 1 for now. */
1567void psxBios_get_cd_status(void) //a6
1568{
1569 v0 = 1;
1570 pc0 = ra;
1571}
1572
ef79bbde
P		 1573void psxBios__card_info() { // ab
1574#ifdef PSXBIOS_LOG
1575 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1576#endif
76b81516 1577 u32 ret;
e9fda093 1578 card_active_chan = a0;
1579
76b81516 1580 switch (card_active_chan)
1581 {
1582 case 0x00: case 0x01: case 0x02: case 0x03:
1583 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1584 break;
1585 case 0x10: case 0x11: case 0x12: case 0x13:
1586 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1587 break;
1588 default:
1589#ifdef PSXBIOS_LOG
1590 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1591#endif
1592 ret = 0x11;
1593 break;
1594 }
1595
1596// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
ef79bbde
P		 1597// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1598 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
76b81516 1599 DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
ef79bbde
P		 1600
1601 v0 = 1; pc0 = ra;
1602}
1603
1604void psxBios__card_load() { // ac
1605#ifdef PSXBIOS_LOG
1606 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1607#endif
1608
e9fda093 1609 card_active_chan = a0;
1610
ef79bbde
P		 1611// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1612 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1613
1614 v0 = 1; pc0 = ra;
1615}
1616
1617/* System calls B0 */
1618
1619void psxBios_SetRCnt() { // 02
1620#ifdef PSXBIOS_LOG
1621 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1622#endif
1623
1624 a0&= 0x3;
1625 if (a0 != 3) {
1626 u32 mode=0;
1627
1628 psxRcntWtarget(a0, a1);
1629 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1630 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1631 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1632 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1633 else { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1634
1635 psxRcntWmode(a0, mode);
1636 }
1637 pc0 = ra;
1638}
1639
1640void psxBios_GetRCnt() { // 03
1641#ifdef PSXBIOS_LOG
1642 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1643#endif
1644
1645 a0&= 0x3;
1646 if (a0 != 3) v0 = psxRcntRcount(a0);
1647 else v0 = 0;
1648 pc0 = ra;
1649}
1650
1651void psxBios_StartRCnt() { // 04
1652#ifdef PSXBIOS_LOG
1653 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1654#endif
1655
1656 a0&= 0x3;
1657 if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1658 else psxHu32ref(0x1074)|= SWAPu32(0x1);
1659 v0 = 1; pc0 = ra;
1660}
1661
1662void psxBios_StopRCnt() { // 05
1663#ifdef PSXBIOS_LOG
1664 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1665#endif
1666
1667 a0&= 0x3;
1668 if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1669 else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1670 pc0 = ra;
1671}
1672
1673void psxBios_ResetRCnt() { // 06
1674#ifdef PSXBIOS_LOG
1675 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1676#endif
1677
1678 a0&= 0x3;
1679 if (a0 != 3) {
1680 psxRcntWmode(a0, 0);
1681 psxRcntWtarget(a0, 0);
1682 psxRcntWcount(a0, 0);
1683 }
1684 pc0 = ra;
1685}
1686
1687
1688/* gets ev for use with Event */
1689#define GetEv() \
1690 ev = (a0 >> 24) & 0xf; \
1691 if (ev == 0xf) ev = 0x5; \
1692 ev*= 32; \
1693 ev+= a0&0x1f;
1694
1695/* gets spec for use with Event */
1696#define GetSpec() \
1697 spec = 0; \
1698 switch (a1) { \
1699 case 0x0301: spec = 16; break; \
1700 case 0x0302: spec = 17; break; \
1701 default: \
1702 for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1703 break; \
1704 }
1705
1706void psxBios_DeliverEvent() { // 07
1707 int ev, spec;
1708 int i;
1709
1710 GetEv();
1711 GetSpec();
1712
1713#ifdef PSXBIOS_LOG
1714 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1715#endif
1716
1717 DeliverEvent(ev, spec);
1718
1719 pc0 = ra;
1720}
1721
1722void psxBios_OpenEvent() { // 08
1723 int ev, spec;
1724 int i;
1725
1726 GetEv();
1727 GetSpec();
1728
1729#ifdef PSXBIOS_LOG
1730 PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1731#endif
1732
1733 Event[ev][spec].status = EvStWAIT;
1734 Event[ev][spec].mode = a2;
1735 Event[ev][spec].fhandler = a3;
1736
1737 v0 = ev | (spec << 8);
1738 pc0 = ra;
1739}
1740
1741void psxBios_CloseEvent() { // 09
1742 int ev, spec;
1743
1744 ev = a0 & 0xff;
1745 spec = (a0 >> 8) & 0xff;
1746
1747#ifdef PSXBIOS_LOG
1748 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1749#endif
1750
1751 Event[ev][spec].status = EvStUNUSED;
1752
1753 v0 = 1; pc0 = ra;
1754}
1755
1756void psxBios_WaitEvent() { // 0a
1757 int ev, spec;
1758
1759 ev = a0 & 0xff;
1760 spec = (a0 >> 8) & 0xff;
ef79bbde
P		 1761#ifdef PSXBIOS_LOG
1762 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1763#endif
d95c9dcb 1764 if (Event[ev][spec].status == EvStUNUSED)
1765 {
1766 v0 = 0;
1767 pc0 = ra;
1768 return;
1769 }
ef79bbde 1770
d95c9dcb 1771 if (Event[ev][spec].status == EvStALREADY)
1772 {
1773 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1774 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1775 v0 = 1;
1776 pc0 = ra;
1777 return;
1778 }
ef79bbde 1779
d95c9dcb 1780 v0 = 0;
1781 pc0 = ra;
ef79bbde
P		 1782}
1783
1784void psxBios_TestEvent() { // 0b
1785 int ev, spec;
1786
1787 ev = a0 & 0xff;
1788 spec = (a0 >> 8) & 0xff;
1789
b4ae2532 1790 if (Event[ev][spec].status == EvStALREADY)
1791 {
1792 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1793 v0 = 1;
1794 }
1795 else
1796 {
1797 v0 = 0;
1798 }
ef79bbde
P		 1799
1800#ifdef PSXBIOS_LOG
1801 PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1802#endif
1803
1804 pc0 = ra;
1805}
1806
1807void psxBios_EnableEvent() { // 0c
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[0x0c], ev, spec);
1815#endif
1816
1817 Event[ev][spec].status = EvStACTIVE;
1818
1819 v0 = 1; pc0 = ra;
1820}
1821
1822void psxBios_DisableEvent() { // 0d
1823 int ev, spec;
1824
1825 ev = a0 & 0xff;
1826 spec = (a0 >> 8) & 0xff;
1827
1828#ifdef PSXBIOS_LOG
1829 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1830#endif
1831
1832 Event[ev][spec].status = EvStWAIT;
1833
1834 v0 = 1; pc0 = ra;
1835}
1836
1837/*
1838 * long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1839 */
1840
1841void psxBios_OpenTh() { // 0e
1842 int th;
1843
1844 for (th=1; th<8; th++)
a66d3058 1845 {
ef79bbde
P		 1846 if (Thread[th].status == 0) break;
1847
a66d3058 1848 }
1849 if (th == 8) {
1850 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1851 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1852#ifdef PSXBIOS_LOG
1853 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1854#endif
1855 v0 = 0xffffffff;
1856 pc0 = ra;
1857 return;
1858 }
ef79bbde
P		 1859#ifdef PSXBIOS_LOG
1860 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1861#endif
1862
1863 Thread[th].status = 1;
1864 Thread[th].func = a0;
1865 Thread[th].reg[29] = a1;
1866 Thread[th].reg[28] = a2;
1867
1868 v0 = th; pc0 = ra;
1869}
1870
1871/*
1872 * int CloseTh(long thread);
1873 */
1874
1875void psxBios_CloseTh() { // 0f
1876 int th = a0 & 0xff;
1877
1878#ifdef PSXBIOS_LOG
1879 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1880#endif
1881
1882 if (Thread[th].status == 0) {
1883 v0 = 0;
1884 } else {
1885 Thread[th].status = 0;
1886 v0 = 1;
1887 }
1888
1889 pc0 = ra;
1890}
1891
1892/*
1893 * int ChangeTh(long thread);
1894 */
1895
1896void psxBios_ChangeTh() { // 10
1897 int th = a0 & 0xff;
1898
1899#ifdef PSXBIOS_LOG
1900// PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1901#endif
1902
1903 if (Thread[th].status == 0 || CurThread == th) {
1904 v0 = 0;
1905
1906 pc0 = ra;
1907 } else {
1908 v0 = 1;
1909
1910 if (Thread[CurThread].status == 2) {
1911 Thread[CurThread].status = 1;
1912 Thread[CurThread].func = ra;
1913 memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1914 }
1915
1916 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1917 pc0 = Thread[th].func;
1918 Thread[th].status = 2;
1919 CurThread = th;
1920 }
1921}
1922
1923void psxBios_InitPAD() { // 0x12
1924#ifdef PSXBIOS_LOG
1925 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1926#endif
1927
1928 pad_buf1 = (char*)Ra0;
1929 pad_buf1len = a1;
1930 pad_buf2 = (char*)Ra2;
1931 pad_buf2len = a3;
1932
1933 v0 = 1; pc0 = ra;
1934}
1935
1936void psxBios_StartPAD() { // 13
1937#ifdef PSXBIOS_LOG
1938 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1939#endif
f25c285b 1940 pad_stopped = 0;
ef79bbde
P		 1941 psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1942 psxRegs.CP0.n.Status |= 0x401;
1943 pc0 = ra;
1944}
1945
1946void psxBios_StopPAD() { // 14
1947#ifdef PSXBIOS_LOG
1948 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1949#endif
f25c285b 1950 pad_stopped = 1;
ef79bbde
P		 1951 pad_buf1 = NULL;
1952 pad_buf2 = NULL;
1953 pc0 = ra;
1954}
1955
1956void psxBios_PAD_init() { // 15
1957#ifdef PSXBIOS_LOG
1958 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1959#endif
a824e83d 1960 if (!(a0 == 0x20000000 || a0 == 0x20000001))
1961 {
1962 v0 = 0;
1963 pc0 = ra;
1964 return;
1965 }
ef79bbde
P		 1966 psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1967 pad_buf = (int *)Ra1;
1968 *pad_buf = -1;
1969 psxRegs.CP0.n.Status |= 0x401;
a824e83d 1970 v0 = 2;
ef79bbde
P		 1971 pc0 = ra;
1972}
1973
1974void psxBios_PAD_dr() { // 16
1975#ifdef PSXBIOS_LOG
1976 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1977#endif
1978
1979 v0 = -1; pc0 = ra;
1980}
1981
1982void psxBios_ReturnFromException() { // 17
1983 LoadRegs();
1984
1985 pc0 = psxRegs.CP0.n.EPC;
f23c2241 1986 k0 = interrupt_r26;
ef79bbde
P		 1987 if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1988
1989 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1990 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1991}
1992
1993void psxBios_ResetEntryInt() { // 18
1994#ifdef PSXBIOS_LOG
1995 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1996#endif
1997
1998 jmp_int = NULL;
1999 pc0 = ra;
2000}
2001
2002void psxBios_HookEntryInt() { // 19
2003#ifdef PSXBIOS_LOG
2004 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
2005#endif
2006
2007 jmp_int = (u32*)Ra0;
2008 pc0 = ra;
2009}
2010
2011void psxBios_UnDeliverEvent() { // 0x20
2012 int ev, spec;
2013 int i;
2014
2015 GetEv();
2016 GetSpec();
2017
2018#ifdef PSXBIOS_LOG
2019 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
2020#endif
2021
2022 if (Event[ev][spec].status == EvStALREADY &&
2023 Event[ev][spec].mode == EvMdNOINTR)
2024 Event[ev][spec].status = EvStACTIVE;
2025
2026 pc0 = ra;
2027}
2028
595a136b 2029char ffile[64], *pfile;
2030int nfile;
2031static void buopen(int mcd, u8 *ptr, u8 *cfg)
2032{
2033 int i;
2034 u8 *fptr = ptr;
2035
2036 strcpy(FDesc[1 + mcd].name, Ra0+5);
2037 FDesc[1 + mcd].offset = 0;
2038 FDesc[1 + mcd].mode = a1;
2039
2040 for (i=1; i<16; i++) {
2041 fptr += 128;
2042 if ((*fptr & 0xF0) != 0x50) continue;
2043 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
2044 FDesc[1 + mcd].mcfile = i;
2045 SysPrintf("open %s\n", fptr+0xa);
2046 v0 = 1 + mcd;
2047 break;
2048 }
2049 if (a1 & 0x200 && v0 == -1) { /* FCREAT */
2050 fptr = ptr;
2051 for (i=1; i<16; i++) {
2052 int j, xor, nblk = a1 >> 16;
2053 u8 *pptr, *fptr2;
2054
2055 fptr += 128;
2056 if ((*fptr & 0xF0) != 0xa0) continue;
2057
2058 FDesc[1 + mcd].mcfile = i;
2059 fptr[0] = 0x51;
2060 fptr[4] = 0x00;
2061 fptr[5] = 0x20 * nblk;
2062 fptr[6] = 0x00;
2063 fptr[7] = 0x00;
2064 strcpy(fptr+0xa, FDesc[1 + mcd].name);
2065 pptr = fptr2 = fptr;
2066 for(j=2; j<=nblk; j++) {
2067 int k;
2068 for(i++; i<16; i++) {
2069 fptr2 += 128;
2070
2071 memset(fptr2, 0, 128);
2072 fptr2[0] = j < nblk ? 0x52 : 0x53;
2073 pptr[8] = i - 1;
2074 pptr[9] = 0;
2075 for (k=0, xor=0; k<127; k++) xor^= pptr[k];
2076 pptr[127] = xor;
2077 pptr = fptr2;
2078 break;
2079 }
2080 /* shouldn't this return ENOSPC if i == 16? */
2081 }
2082 pptr[8] = pptr[9] = 0xff;
2083 for (j=0, xor=0; j<127; j++) xor^= pptr[j];
2084 pptr[127] = xor;
2085 SysPrintf("openC %s %d\n", ptr, nblk);
2086 v0 = 1 + mcd;
2087 /* just go ahead and resave them all */
2088 SaveMcd(cfg, ptr, 128, 128 * 15);
2089 break;
2090 }
2091 /* shouldn't this return ENOSPC if i == 16? */
2092 }
ef79bbde
P		 2093}
2094
2095/*
2096 * int open(char *name , int mode);
2097 */
2098
2099void psxBios_open() { // 0x32
2100 int i;
2101 char *ptr;
02949f79 2102 void *pa0 = Ra0;
ef79bbde
P		 2103
2104#ifdef PSXBIOS_LOG
2105 PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
2106#endif
2107
2108 v0 = -1;
2109
02949f79 2110 if (pa0) {
2111 if (!strncmp(pa0, "bu00", 4)) {
595a136b 2112 buopen(1, Mcd1Data, Config.Mcd1);
02949f79 2113 }
ef79bbde 2114
02949f79 2115 if (!strncmp(pa0, "bu10", 4)) {
595a136b 2116 buopen(2, Mcd2Data, Config.Mcd2);
02949f79 2117 }
ef79bbde
P		 2118 }
2119
2120 pc0 = ra;
2121}
2122
2123/*
2124 * int lseek(int fd , int offset , int whence);
2125 */
2126
2127void psxBios_lseek() { // 0x33
2128#ifdef PSXBIOS_LOG
2129 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2130#endif
2131
2132 switch (a2) {
2133 case 0: // SEEK_SET
2134 FDesc[a0].offset = a1;
2135 v0 = a1;
2136// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2137// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2138 break;
2139
2140 case 1: // SEEK_CUR
2141 FDesc[a0].offset+= a1;
2142 v0 = FDesc[a0].offset;
2143 break;
2144 }
2145
2146 pc0 = ra;
2147}
2148
595a136b 2149
ef79bbde
P		 2150/*
2151 * int read(int fd , void *buf , int nbytes);
2152 */
2153
2154void psxBios_read() { // 0x34
2155 char *ptr;
02949f79 2156 void *pa1 = Ra1;
ef79bbde
P		 2157
2158#ifdef PSXBIOS_LOG
2159 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2160#endif
2161
2162 v0 = -1;
2163
02949f79 2164 if (pa1) {
2165 switch (a0) {
595a136b 2166 case 2: buread(pa1, 1, a2); break;
2167 case 3: buread(pa1, 2, a2); break;
02949f79 2168 }
ef79bbde
P		 2169 }
2170
2171 pc0 = ra;
2172}
2173
ef79bbde
P		 2174/*
2175 * int write(int fd , void *buf , int nbytes);
2176 */
2177
2178void psxBios_write() { // 0x35/0x03
2179 char *ptr;
02949f79 2180 void *pa1 = Ra1;
2181
2182#ifdef PSXBIOS_LOG
2183 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2184#endif
2185
2186 v0 = -1;
2187 if (!pa1) {
2188 pc0 = ra;
2189 return;
2190 }
ef79bbde
P		 2191
2192 if (a0 == 1) { // stdout
02949f79 2193 char *ptr = pa1;
ef79bbde 2194
02949f79 2195 v0 = a2;
ef79bbde
P		 2196 while (a2 > 0) {
2197 SysPrintf("%c", *ptr++); a2--;
2198 }
2199 pc0 = ra; return;
2200 }
ef79bbde
P		 2201
2202 switch (a0) {
595a136b 2203 case 2: buwrite(pa1, 1, a2); break;
2204 case 3: buwrite(pa1, 2, a2); break;
ef79bbde
P		 2205 }
2206
2207 pc0 = ra;
2208}
2209
2210/*
2211 * int close(int fd);
2212 */
2213
2214void psxBios_close() { // 0x36
2215#ifdef PSXBIOS_LOG
2216 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2217#endif
2218
2219 v0 = a0;
2220 pc0 = ra;
2221}
2222
2223void psxBios_putchar() { // 3d
2224 SysPrintf("%c", (char)a0);
2225 pc0 = ra;
2226}
2227
2228void psxBios_puts() { // 3e/3f
808a13bd 2229 SysPrintf("%s", Ra0);
ef79bbde
P		 2230 pc0 = ra;
2231}
2232
f1514614 2233
2234/* To avoid any issues with different behaviour when using the libc's own strlen instead.
2235 * We want to mimic the PSX's behaviour in this case for bufile. */
2236static size_t strlen_internal(char* p)
2237{
2238 size_t size_of_array = 0;
2239 while (*p++) size_of_array++;
2240 return size_of_array;
2241}
2242
ef79bbde 2243#define bufile(mcd) { \
f1514614 2244 size_t size_of_name = strlen_internal(dir->name); \
ef79bbde
P		 2245 while (nfile < 16) { \
2246 int match=1; \
2247 \
595a136b 2248 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
ef79bbde
P		 2249 nfile++; \
2250 if ((*ptr & 0xF0) != 0x50) continue; \
595a136b 2251 /* Bug link files show up as free block. */ \
2252 if (!ptr[0xa]) continue; \
ef79bbde
P		 2253 ptr+= 0xa; \
2254 if (pfile[0] == 0) { \
f1514614 2255 strncpy(dir->name, ptr, sizeof(dir->name) - 1); \
2256 if (size_of_name < sizeof(dir->name)) dir->name[size_of_name] = '\0'; \
ef79bbde
P		 2257 } else for (i=0; i<20; i++) { \
2258 if (pfile[i] == ptr[i]) { \
595a136b 2259 dir->name[i] = ptr[i]; continue; } \
ef79bbde
P		 2260 if (pfile[i] == '?') { \
2261 dir->name[i] = ptr[i]; continue; } \
2262 if (pfile[i] == '*') { \
2263 strcpy(dir->name+i, ptr+i); break; } \
2264 match = 0; break; \
2265 } \
2266 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
595a136b 2267 if (match == 0) { continue; } \
ef79bbde
P		 2268 dir->size = 8192; \
2269 v0 = _dir; \
2270 break; \
2271 } \
2272}
2273
2274/*
2275 * struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2276 */
2277
2278void psxBios_firstfile() { // 42
2279 struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
02949f79 2280 void *pa0 = Ra0;
ef79bbde
P		 2281 u32 _dir = a1;
2282 char *ptr;
2283 int i;
2284
2285#ifdef PSXBIOS_LOG
2286 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2287#endif
2288
2289 v0 = 0;
2290
02949f79 2291 if (pa0) {
2292 strcpy(ffile, pa0);
2293 pfile = ffile+5;
8f3b2bd3 2294 nfile = 0;
02949f79 2295 if (!strncmp(pa0, "bu00", 4)) {
857fabea 2296 // firstfile() calls _card_read() internally, so deliver it's event
2297 DeliverEvent(0x11, 0x2);
02949f79 2298 bufile(1);
2299 } else if (!strncmp(pa0, "bu10", 4)) {
857fabea 2300 // firstfile() calls _card_read() internally, so deliver it's event
2301 DeliverEvent(0x11, 0x2);
02949f79 2302 bufile(2);
2303 }
ef79bbde
P		 2304 }
2305
2306 pc0 = ra;
2307}
2308
2309/*
2310 * struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2311 */
2312
2313void psxBios_nextfile() { // 43
2314 struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2315 u32 _dir = a0;
2316 char *ptr;
2317 int i;
2318
2319#ifdef PSXBIOS_LOG
2320 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2321#endif
2322
2323 v0 = 0;
2324
2325 if (!strncmp(ffile, "bu00", 4)) {
2326 bufile(1);
2327 }
2328
2329 if (!strncmp(ffile, "bu10", 4)) {
2330 bufile(2);
2331 }
2332
2333 pc0 = ra;
2334}
2335
2336#define burename(mcd) { \
2337 for (i=1; i<16; i++) { \
2338 int namelen, j, xor = 0; \
2339 ptr = Mcd##mcd##Data + 128 * i; \
2340 if ((*ptr & 0xF0) != 0x50) continue; \
2341 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2342 namelen = strlen(Ra1+5); \
2343 memcpy(ptr+0xa, Ra1+5, namelen); \
2344 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2345 for (j=0; j<127; j++) xor^= ptr[j]; \
2346 ptr[127] = xor; \
2347 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2348 v0 = 1; \
2349 break; \
2350 } \
2351}
2352
2353/*
2354 * int rename(char *old, char *new);
2355 */
2356
2357void psxBios_rename() { // 44
02949f79 2358 void *pa0 = Ra0;
2359 void *pa1 = Ra1;
ef79bbde
P		 2360 char *ptr;
2361 int i;
2362
2363#ifdef PSXBIOS_LOG
2364 PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2365#endif
2366
2367 v0 = 0;
2368
02949f79 2369 if (pa0 && pa1) {
2370 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2371 burename(1);
2372 }
ef79bbde 2373
02949f79 2374 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2375 burename(2);
2376 }
ef79bbde
P		 2377 }
2378
2379 pc0 = ra;
2380}
2381
2382
2383#define budelete(mcd) { \
2384 for (i=1; i<16; i++) { \
2385 ptr = Mcd##mcd##Data + 128 * i; \
2386 if ((*ptr & 0xF0) != 0x50) continue; \
2387 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2388 *ptr = (*ptr & 0xf) | 0xA0; \
2389 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2390 SysPrintf("delete %s\n", ptr+0xa); \
2391 v0 = 1; \
2392 break; \
2393 } \
2394}
2395
2396/*
2397 * int delete(char *name);
2398 */
2399
2400void psxBios_delete() { // 45
02949f79 2401 void *pa0 = Ra0;
ef79bbde
P		 2402 char *ptr;
2403 int i;
2404
2405#ifdef PSXBIOS_LOG
2406 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2407#endif
2408
2409 v0 = 0;
2410
02949f79 2411 if (pa0) {
2412 if (!strncmp(pa0, "bu00", 4)) {
2413 budelete(1);
2414 }
ef79bbde 2415
02949f79 2416 if (!strncmp(pa0, "bu10", 4)) {
2417 budelete(2);
2418 }
ef79bbde
P		 2419 }
2420
2421 pc0 = ra;
2422}
2423
2424void psxBios_InitCARD() { // 4a
2425#ifdef PSXBIOS_LOG
2426 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2427#endif
2428
2429 CardState = 0;
2430
2431 pc0 = ra;
2432}
2433
2434void psxBios_StartCARD() { // 4b
2435#ifdef PSXBIOS_LOG
2436 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2437#endif
2438
2439 if (CardState == 0) CardState = 1;
2440
2441 pc0 = ra;
2442}
2443
2444void psxBios_StopCARD() { // 4c
2445#ifdef PSXBIOS_LOG
2446 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2447#endif
2448
2449 if (CardState == 1) CardState = 0;
2450
2451 pc0 = ra;
2452}
2453
2454void psxBios__card_write() { // 0x4e
02949f79 2455 void *pa2 = Ra2;
ef79bbde
P		 2456 int port;
2457
2458#ifdef PSXBIOS_LOG
2459 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2460#endif
bd48ba5e 2461 /* Function also accepts sector 400h (a bug) */
2462 if (!(a1 <= 0x400))
2463 {
2464 /* Invalid sectors */
2465 v0 = 0; pc0 = ra;
2466 return;
2467 }
e9fda093 2468 card_active_chan = a0;
ef79bbde
P		 2469 port = a0 >> 4;
2470
02949f79 2471 if (pa2) {
2472 if (port == 0) {
2473 memcpy(Mcd1Data + a1 * 128, pa2, 128);
2474 SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2475 } else {
2476 memcpy(Mcd2Data + a1 * 128, pa2, 128);
2477 SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2478 }
ef79bbde
P		 2479 }
2480
2481 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2482// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2483
2484 v0 = 1; pc0 = ra;
2485}
2486
2487void psxBios__card_read() { // 0x4f
02949f79 2488 void *pa2 = Ra2;
ef79bbde
P		 2489 int port;
2490
2491#ifdef PSXBIOS_LOG
2492 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2493#endif
bd48ba5e 2494 /* Function also accepts sector 400h (a bug) */
2495 if (!(a1 <= 0x400))
2496 {
2497 /* Invalid sectors */
2498 v0 = 0; pc0 = ra;
2499 return;
2500 }
e9fda093 2501 card_active_chan = a0;
ef79bbde
P		 2502 port = a0 >> 4;
2503
02949f79 2504 if (pa2) {
2505 if (port == 0) {
2506 memcpy(pa2, Mcd1Data + a1 * 128, 128);
2507 } else {
2508 memcpy(pa2, Mcd2Data + a1 * 128, 128);
2509 }
ef79bbde
P		 2510 }
2511
2512 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2513// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2514
2515 v0 = 1; pc0 = ra;
2516}
2517
2518void psxBios__new_card() { // 0x50
2519#ifdef PSXBIOS_LOG
2520 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2521#endif
2522
2523 pc0 = ra;
2524}
2525
002b2f7d 2526/* According to a user, this allows Final Fantasy Tactics to save/load properly */
2527void psxBios__get_error(void) // 55
2528{
2529 v0 = 0;
2530 pc0 = ra;
2531}
2532
ef79bbde
P		 2533void psxBios_Krom2RawAdd() { // 0x51
2534 int i = 0;
2535
2536 const u32 table_8140[][2] = {
2537 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2538 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2539 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2540 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2541 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2542 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2543 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2544 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2545 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2546 {0xffff, 0}
2547 };
2548
2549 const u32 table_889f[][2] = {
2550 {0x889f, 0x3d68}, {0x8900, 0x40ec}, {0x897f, 0x4fb0}, {0x8a00, 0x56f4},
2551 {0x8a7f, 0x65b8}, {0x8b00, 0x6cfc}, {0x8b7f, 0x7bc0}, {0x8c00, 0x8304},
2552 {0x8c7f, 0x91c8}, {0x8d00, 0x990c}, {0x8d7f, 0xa7d0}, {0x8e00, 0xaf14},
2553 {0x8e7f, 0xbdd8}, {0x8f00, 0xc51c}, {0x8f7f, 0xd3e0}, {0x9000, 0xdb24},
2554 {0x907f, 0xe9e8}, {0x9100, 0xf12c}, {0x917f, 0xfff0}, {0x9200, 0x10734},
2555 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2556 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2557 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2558 {0xffff, 0}
2559 };
2560
2561 if (a0 >= 0x8140 && a0 <= 0x84be) {
2562 while (table_8140[i][0] <= a0) i++;
2563 a0 -= table_8140[i - 1][0];
2564 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2565 } else if (a0 >= 0x889f && a0 <= 0x9872) {
2566 while (table_889f[i][0] <= a0) i++;
2567 a0 -= table_889f[i - 1][0];
2568 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2569 } else {
2570 v0 = 0xffffffff;
2571 }
2572
2573 pc0 = ra;
2574}
2575
2576void psxBios_GetC0Table() { // 56
2577#ifdef PSXBIOS_LOG
2578 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2579#endif
2580
2581 v0 = 0x674; pc0 = ra;
2582}
2583
2584void psxBios_GetB0Table() { // 57
2585#ifdef PSXBIOS_LOG
2586 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2587#endif
2588
2589 v0 = 0x874; pc0 = ra;
2590}
2591
e9fda093 2592void psxBios__card_chan() { // 0x58
2593#ifdef PSXBIOS_LOG
2594 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2595#endif
2596
2597 v0 = card_active_chan;
2598 pc0 = ra;
2599}
2600
ef79bbde
P		 2601void psxBios_ChangeClearPad() { // 5b
2602#ifdef PSXBIOS_LOG
2603 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2604#endif
2605
2606 pc0 = ra;
2607}
2608
21af3ff6 2609void psxBios__card_status() { // 5c
2610#ifdef PSXBIOS_LOG
2611 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5c], a0);
2612#endif
2613
cf1af0ed 2614 v0 = card_active_chan;
21af3ff6 2615 pc0 = ra;
2616}
2617
5f652aa9 2618void psxBios__card_wait() { // 5d
2619#ifdef PSXBIOS_LOG
2620 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5d], a0);
2621#endif
2622
2623 v0 = 1;
2624 pc0 = ra;
2625}
2626
ef79bbde
P		 2627/* System calls C0 */
2628
2629/*
2630 * int SysEnqIntRP(int index , long *queue);
2631 */
2632
2633void psxBios_SysEnqIntRP() { // 02
2634#ifdef PSXBIOS_LOG
2635 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2636#endif
2637
2638 SysIntRP[a0] = a1;
2639
2640 v0 = 0; pc0 = ra;
2641}
2642
2643/*
2644 * int SysDeqIntRP(int index , long *queue);
2645 */
2646
2647void psxBios_SysDeqIntRP() { // 03
2648#ifdef PSXBIOS_LOG
2649 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2650#endif
2651
2652 SysIntRP[a0] = 0;
2653
2654 v0 = 0; pc0 = ra;
2655}
2656
2657void psxBios_ChangeClearRCnt() { // 0a
2658 u32 *ptr;
2659
2660#ifdef PSXBIOS_LOG
2661 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2662#endif
2663
2664 ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2665 v0 = *ptr;
2666 *ptr = a1;
2667
2668// psxRegs.CP0.n.Status|= 0x404;
2669 pc0 = ra;
2670}
2671
2672void psxBios_dummy() {
2673#ifdef PSXBIOS_LOG
2674 PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2675#endif
2676 pc0 = ra;
2677}
2678
2679void (*biosA0[256])();
2680void (*biosB0[256])();
2681void (*biosC0[256])();
2682
2683#include "sjisfont.h"
2684
2685void psxBiosInit() {
2686 u32 base, size;
2687 u32 *ptr;
2688 int i;
2689 uLongf len;
2690
2691 for(i = 0; i < 256; i++) {
2692 biosA0[i] = NULL;
2693 biosB0[i] = NULL;
2694 biosC0[i] = NULL;
2695 }
2696 biosA0[0x3e] = psxBios_puts;
2697 biosA0[0x3f] = psxBios_printf;
2698
2699 biosB0[0x3d] = psxBios_putchar;
2700 biosB0[0x3f] = psxBios_puts;
2701
2702 if (!Config.HLE) return;
2703
2704 for(i = 0; i < 256; i++) {
2705 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2706 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2707 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2708 }
2709
2710 biosA0[0x00] = psxBios_open;
2711 biosA0[0x01] = psxBios_lseek;
2712 biosA0[0x02] = psxBios_read;
2713 biosA0[0x03] = psxBios_write;
2714 biosA0[0x04] = psxBios_close;
2715 //biosA0[0x05] = psxBios_ioctl;
2716 //biosA0[0x06] = psxBios_exit;
2717 //biosA0[0x07] = psxBios_sys_a0_07;
324cec89 2718 biosA0[0x08] = psxBios_getc;
2719 biosA0[0x09] = psxBios_putc;
ba11675c 2720 biosA0[0x0a] = psxBios_todigit;
ef79bbde
P		 2721 //biosA0[0x0b] = psxBios_atof;
2722 //biosA0[0x0c] = psxBios_strtoul;
2723 //biosA0[0x0d] = psxBios_strtol;
2724 biosA0[0x0e] = psxBios_abs;
2725 biosA0[0x0f] = psxBios_labs;
2726 biosA0[0x10] = psxBios_atoi;
2727 biosA0[0x11] = psxBios_atol;
2728 //biosA0[0x12] = psxBios_atob;
2729 biosA0[0x13] = psxBios_setjmp;
2730 biosA0[0x14] = psxBios_longjmp;
2731 biosA0[0x15] = psxBios_strcat;
2732 biosA0[0x16] = psxBios_strncat;
2733 biosA0[0x17] = psxBios_strcmp;
2734 biosA0[0x18] = psxBios_strncmp;
2735 biosA0[0x19] = psxBios_strcpy;
2736 biosA0[0x1a] = psxBios_strncpy;
2737 biosA0[0x1b] = psxBios_strlen;
2738 biosA0[0x1c] = psxBios_index;
2739 biosA0[0x1d] = psxBios_rindex;
2740 biosA0[0x1e] = psxBios_strchr;
2741 biosA0[0x1f] = psxBios_strrchr;
2742 biosA0[0x20] = psxBios_strpbrk;
2743 biosA0[0x21] = psxBios_strspn;
2744 biosA0[0x22] = psxBios_strcspn;
2745 biosA0[0x23] = psxBios_strtok;
2746 biosA0[0x24] = psxBios_strstr;
2747 biosA0[0x25] = psxBios_toupper;
2748 biosA0[0x26] = psxBios_tolower;
2749 biosA0[0x27] = psxBios_bcopy;
2750 biosA0[0x28] = psxBios_bzero;
2751 biosA0[0x29] = psxBios_bcmp;
2752 biosA0[0x2a] = psxBios_memcpy;
2753 biosA0[0x2b] = psxBios_memset;
2754 biosA0[0x2c] = psxBios_memmove;
2755 biosA0[0x2d] = psxBios_memcmp;
2756 biosA0[0x2e] = psxBios_memchr;
2757 biosA0[0x2f] = psxBios_rand;
2758 biosA0[0x30] = psxBios_srand;
2759 biosA0[0x31] = psxBios_qsort;
2760 //biosA0[0x32] = psxBios_strtod;
2761 biosA0[0x33] = psxBios_malloc;
2762 biosA0[0x34] = psxBios_free;
2763 //biosA0[0x35] = psxBios_lsearch;
2764 //biosA0[0x36] = psxBios_bsearch;
2765 biosA0[0x37] = psxBios_calloc;
2766 biosA0[0x38] = psxBios_realloc;
2767 biosA0[0x39] = psxBios_InitHeap;
2768 //biosA0[0x3a] = psxBios__exit;
2769 biosA0[0x3b] = psxBios_getchar;
2770 biosA0[0x3c] = psxBios_putchar;
2771 //biosA0[0x3d] = psxBios_gets;
2772 //biosA0[0x40] = psxBios_sys_a0_40;
2773 //biosA0[0x41] = psxBios_LoadTest;
2774 biosA0[0x42] = psxBios_Load;
2775 biosA0[0x43] = psxBios_Exec;
2776 biosA0[0x44] = psxBios_FlushCache;
2777 //biosA0[0x45] = psxBios_InstallInterruptHandler;
2778 biosA0[0x46] = psxBios_GPU_dw;
2779 biosA0[0x47] = psxBios_mem2vram;
2780 biosA0[0x48] = psxBios_SendGPU;
2781 biosA0[0x49] = psxBios_GPU_cw;
2782 biosA0[0x4a] = psxBios_GPU_cwb;
2783 biosA0[0x4b] = psxBios_GPU_SendPackets;
2784 biosA0[0x4c] = psxBios_sys_a0_4c;
2785 biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2786 //biosA0[0x4e] = psxBios_GPU_sync;
2787 //biosA0[0x4f] = psxBios_sys_a0_4f;
2788 //biosA0[0x50] = psxBios_sys_a0_50;
2789 biosA0[0x51] = psxBios_LoadExec;
2790 //biosA0[0x52] = psxBios_GetSysSp;
2791 //biosA0[0x53] = psxBios_sys_a0_53;
2792 //biosA0[0x54] = psxBios__96_init_a54;
2793 //biosA0[0x55] = psxBios__bu_init_a55;
2794 //biosA0[0x56] = psxBios__96_remove_a56;
2795 //biosA0[0x57] = psxBios_sys_a0_57;
2796 //biosA0[0x58] = psxBios_sys_a0_58;
2797 //biosA0[0x59] = psxBios_sys_a0_59;
2798 //biosA0[0x5a] = psxBios_sys_a0_5a;
2799 //biosA0[0x5b] = psxBios_dev_tty_init;
2800 //biosA0[0x5c] = psxBios_dev_tty_open;
2801 //biosA0[0x5d] = psxBios_sys_a0_5d;
2802 //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2803 //biosA0[0x5f] = psxBios_dev_cd_open;
2804 //biosA0[0x60] = psxBios_dev_cd_read;
2805 //biosA0[0x61] = psxBios_dev_cd_close;
2806 //biosA0[0x62] = psxBios_dev_cd_firstfile;
2807 //biosA0[0x63] = psxBios_dev_cd_nextfile;
2808 //biosA0[0x64] = psxBios_dev_cd_chdir;
2809 //biosA0[0x65] = psxBios_dev_card_open;
2810 //biosA0[0x66] = psxBios_dev_card_read;
2811 //biosA0[0x67] = psxBios_dev_card_write;
2812 //biosA0[0x68] = psxBios_dev_card_close;
2813 //biosA0[0x69] = psxBios_dev_card_firstfile;
2814 //biosA0[0x6a] = psxBios_dev_card_nextfile;
2815 //biosA0[0x6b] = psxBios_dev_card_erase;
2816 //biosA0[0x6c] = psxBios_dev_card_undelete;
2817 //biosA0[0x6d] = psxBios_dev_card_format;
2818 //biosA0[0x6e] = psxBios_dev_card_rename;
2819 //biosA0[0x6f] = psxBios_dev_card_6f;
2820 biosA0[0x70] = psxBios__bu_init;
2821 biosA0[0x71] = psxBios__96_init;
2822 biosA0[0x72] = psxBios__96_remove;
2823 //biosA0[0x73] = psxBios_sys_a0_73;
2824 //biosA0[0x74] = psxBios_sys_a0_74;
2825 //biosA0[0x75] = psxBios_sys_a0_75;
2826 //biosA0[0x76] = psxBios_sys_a0_76;
2827 //biosA0[0x77] = psxBios_sys_a0_77;
2828 //biosA0[0x78] = psxBios__96_CdSeekL;
2829 //biosA0[0x79] = psxBios_sys_a0_79;
2830 //biosA0[0x7a] = psxBios_sys_a0_7a;
2831 //biosA0[0x7b] = psxBios_sys_a0_7b;
2832 //biosA0[0x7c] = psxBios__96_CdGetStatus;
2833 //biosA0[0x7d] = psxBios_sys_a0_7d;
2834 //biosA0[0x7e] = psxBios__96_CdRead;
2835 //biosA0[0x7f] = psxBios_sys_a0_7f;
2836 //biosA0[0x80] = psxBios_sys_a0_80;
2837 //biosA0[0x81] = psxBios_sys_a0_81;
2838 //biosA0[0x82] = psxBios_sys_a0_82;
2839 //biosA0[0x83] = psxBios_sys_a0_83;
2840 //biosA0[0x84] = psxBios_sys_a0_84;
2841 //biosA0[0x85] = psxBios__96_CdStop;
2842 //biosA0[0x86] = psxBios_sys_a0_86;
2843 //biosA0[0x87] = psxBios_sys_a0_87;
2844 //biosA0[0x88] = psxBios_sys_a0_88;
2845 //biosA0[0x89] = psxBios_sys_a0_89;
2846 //biosA0[0x8a] = psxBios_sys_a0_8a;
2847 //biosA0[0x8b] = psxBios_sys_a0_8b;
2848 //biosA0[0x8c] = psxBios_sys_a0_8c;
2849 //biosA0[0x8d] = psxBios_sys_a0_8d;
2850 //biosA0[0x8e] = psxBios_sys_a0_8e;
2851 //biosA0[0x8f] = psxBios_sys_a0_8f;
2852 //biosA0[0x90] = psxBios_sys_a0_90;
2853 //biosA0[0x91] = psxBios_sys_a0_91;
2854 //biosA0[0x92] = psxBios_sys_a0_92;
2855 //biosA0[0x93] = psxBios_sys_a0_93;
2856 //biosA0[0x94] = psxBios_sys_a0_94;
2857 //biosA0[0x95] = psxBios_sys_a0_95;
2858 //biosA0[0x96] = psxBios_AddCDROMDevice;
2859 //biosA0[0x97] = psxBios_AddMemCardDevide;
2860 //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2861 //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2862 //biosA0[0x9a] = psxBios_sys_a0_9a;
2863 //biosA0[0x9b] = psxBios_sys_a0_9b;
2864 //biosA0[0x9c] = psxBios_SetConf;
2865 //biosA0[0x9d] = psxBios_GetConf;
2866 //biosA0[0x9e] = psxBios_sys_a0_9e;
2867 biosA0[0x9f] = psxBios_SetMem;
2868 //biosA0[0xa0] = psxBios__boot;
2869 //biosA0[0xa1] = psxBios_SystemError;
2870 //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2871 //biosA0[0xa3] = psxBios_DequeueCdIntr;
2872 //biosA0[0xa4] = psxBios_sys_a0_a4;
2873 //biosA0[0xa5] = psxBios_ReadSector;
18dd7e9e 2874 biosA0[0xa6] = psxBios_get_cd_status;
ef79bbde
P		 2875 //biosA0[0xa7] = psxBios_bufs_cb_0;
2876 //biosA0[0xa8] = psxBios_bufs_cb_1;
2877 //biosA0[0xa9] = psxBios_bufs_cb_2;
2878 //biosA0[0xaa] = psxBios_bufs_cb_3;
2879 biosA0[0xab] = psxBios__card_info;
2880 biosA0[0xac] = psxBios__card_load;
2881 //biosA0[0axd] = psxBios__card_auto;
2882 //biosA0[0xae] = psxBios_bufs_cd_4;
2883 //biosA0[0xaf] = psxBios_sys_a0_af;
2884 //biosA0[0xb0] = psxBios_sys_a0_b0;
2885 //biosA0[0xb1] = psxBios_sys_a0_b1;
2886 //biosA0[0xb2] = psxBios_do_a_long_jmp
2887 //biosA0[0xb3] = psxBios_sys_a0_b3;
2888 //biosA0[0xb4] = psxBios_sub_function;
2889//*******************B0 CALLS****************************
2890 //biosB0[0x00] = psxBios_SysMalloc;
2891 //biosB0[0x01] = psxBios_sys_b0_01;
2892 biosB0[0x02] = psxBios_SetRCnt;
2893 biosB0[0x03] = psxBios_GetRCnt;
2894 biosB0[0x04] = psxBios_StartRCnt;
2895 biosB0[0x05] = psxBios_StopRCnt;
2896 biosB0[0x06] = psxBios_ResetRCnt;
2897 biosB0[0x07] = psxBios_DeliverEvent;
2898 biosB0[0x08] = psxBios_OpenEvent;
2899 biosB0[0x09] = psxBios_CloseEvent;
2900 biosB0[0x0a] = psxBios_WaitEvent;
2901 biosB0[0x0b] = psxBios_TestEvent;
2902 biosB0[0x0c] = psxBios_EnableEvent;
2903 biosB0[0x0d] = psxBios_DisableEvent;
2904 biosB0[0x0e] = psxBios_OpenTh;
2905 biosB0[0x0f] = psxBios_CloseTh;
2906 biosB0[0x10] = psxBios_ChangeTh;
2907 //biosB0[0x11] = psxBios_psxBios_b0_11;
2908 biosB0[0x12] = psxBios_InitPAD;
2909 biosB0[0x13] = psxBios_StartPAD;
2910 biosB0[0x14] = psxBios_StopPAD;
2911 biosB0[0x15] = psxBios_PAD_init;
2912 biosB0[0x16] = psxBios_PAD_dr;
2913 biosB0[0x17] = psxBios_ReturnFromException;
2914 biosB0[0x18] = psxBios_ResetEntryInt;
2915 biosB0[0x19] = psxBios_HookEntryInt;
2916 //biosB0[0x1a] = psxBios_sys_b0_1a;
2917 //biosB0[0x1b] = psxBios_sys_b0_1b;
2918 //biosB0[0x1c] = psxBios_sys_b0_1c;
2919 //biosB0[0x1d] = psxBios_sys_b0_1d;
2920 //biosB0[0x1e] = psxBios_sys_b0_1e;
2921 //biosB0[0x1f] = psxBios_sys_b0_1f;
2922 biosB0[0x20] = psxBios_UnDeliverEvent;
2923 //biosB0[0x21] = psxBios_sys_b0_21;
2924 //biosB0[0x22] = psxBios_sys_b0_22;
2925 //biosB0[0x23] = psxBios_sys_b0_23;
2926 //biosB0[0x24] = psxBios_sys_b0_24;
2927 //biosB0[0x25] = psxBios_sys_b0_25;
2928 //biosB0[0x26] = psxBios_sys_b0_26;
2929 //biosB0[0x27] = psxBios_sys_b0_27;
2930 //biosB0[0x28] = psxBios_sys_b0_28;
2931 //biosB0[0x29] = psxBios_sys_b0_29;
2932 //biosB0[0x2a] = psxBios_sys_b0_2a;
2933 //biosB0[0x2b] = psxBios_sys_b0_2b;
2934 //biosB0[0x2c] = psxBios_sys_b0_2c;
2935 //biosB0[0x2d] = psxBios_sys_b0_2d;
2936 //biosB0[0x2e] = psxBios_sys_b0_2e;
2937 //biosB0[0x2f] = psxBios_sys_b0_2f;
2938 //biosB0[0x30] = psxBios_sys_b0_30;
2939 //biosB0[0x31] = psxBios_sys_b0_31;
2940 biosB0[0x32] = psxBios_open;
2941 biosB0[0x33] = psxBios_lseek;
2942 biosB0[0x34] = psxBios_read;
2943 biosB0[0x35] = psxBios_write;
2944 biosB0[0x36] = psxBios_close;
2945 //biosB0[0x37] = psxBios_ioctl;
2946 //biosB0[0x38] = psxBios_exit;
2947 //biosB0[0x39] = psxBios_sys_b0_39;
2948 //biosB0[0x3a] = psxBios_getc;
2949 //biosB0[0x3b] = psxBios_putc;
2950 biosB0[0x3c] = psxBios_getchar;
2951 //biosB0[0x3e] = psxBios_gets;
2952 //biosB0[0x40] = psxBios_cd;
e7e1f572 2953 biosB0[0x41] = psxBios_format;
ef79bbde
P		 2954 biosB0[0x42] = psxBios_firstfile;
2955 biosB0[0x43] = psxBios_nextfile;
2956 biosB0[0x44] = psxBios_rename;
2957 biosB0[0x45] = psxBios_delete;
2958 //biosB0[0x46] = psxBios_undelete;
2959 //biosB0[0x47] = psxBios_AddDevice;
2960 //biosB0[0x48] = psxBios_RemoteDevice;
2961 //biosB0[0x49] = psxBios_PrintInstalledDevices;
2962 biosB0[0x4a] = psxBios_InitCARD;
2963 biosB0[0x4b] = psxBios_StartCARD;
2964 biosB0[0x4c] = psxBios_StopCARD;
2965 //biosB0[0x4d] = psxBios_sys_b0_4d;
2966 biosB0[0x4e] = psxBios__card_write;
2967 biosB0[0x4f] = psxBios__card_read;
2968 biosB0[0x50] = psxBios__new_card;
2969 biosB0[0x51] = psxBios_Krom2RawAdd;
2970 //biosB0[0x52] = psxBios_sys_b0_52;
2971 //biosB0[0x53] = psxBios_sys_b0_53;
2972 //biosB0[0x54] = psxBios__get_errno;
002b2f7d 2973 biosB0[0x55] = psxBios__get_error;
ef79bbde
P		 2974 biosB0[0x56] = psxBios_GetC0Table;
2975 biosB0[0x57] = psxBios_GetB0Table;
e9fda093 2976 biosB0[0x58] = psxBios__card_chan;
ef79bbde
P		 2977 //biosB0[0x59] = psxBios_sys_b0_59;
2978 //biosB0[0x5a] = psxBios_sys_b0_5a;
2979 biosB0[0x5b] = psxBios_ChangeClearPad;
21af3ff6 2980 biosB0[0x5c] = psxBios__card_status;
5f652aa9 2981 biosB0[0x5d] = psxBios__card_wait;
ef79bbde
P		 2982//*******************C0 CALLS****************************
2983 //biosC0[0x00] = psxBios_InitRCnt;
2984 //biosC0[0x01] = psxBios_InitException;
2985 biosC0[0x02] = psxBios_SysEnqIntRP;
2986 biosC0[0x03] = psxBios_SysDeqIntRP;
2987 //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2988 //biosC0[0x05] = psxBios_get_free_TCB_slot;
2989 //biosC0[0x06] = psxBios_ExceptionHandler;
2990 //biosC0[0x07] = psxBios_InstallExeptionHandler;
2991 //biosC0[0x08] = psxBios_SysInitMemory;
2992 //biosC0[0x09] = psxBios_SysInitKMem;
2993 biosC0[0x0a] = psxBios_ChangeClearRCnt;
2994 //biosC0[0x0b] = psxBios_SystemError;
2995 //biosC0[0x0c] = psxBios_InitDefInt;
2996 //biosC0[0x0d] = psxBios_sys_c0_0d;
2997 //biosC0[0x0e] = psxBios_sys_c0_0e;
2998 //biosC0[0x0f] = psxBios_sys_c0_0f;
2999 //biosC0[0x10] = psxBios_sys_c0_10;
3000 //biosC0[0x11] = psxBios_sys_c0_11;
3001 //biosC0[0x12] = psxBios_InstallDevices;
3002 //biosC0[0x13] = psxBios_FlushStfInOutPut;
3003 //biosC0[0x14] = psxBios_sys_c0_14;
3004 //biosC0[0x15] = psxBios__cdevinput;
3005 //biosC0[0x16] = psxBios__cdevscan;
3006 //biosC0[0x17] = psxBios__circgetc;
3007 //biosC0[0x18] = psxBios__circputc;
3008 //biosC0[0x19] = psxBios_ioabort;
3009 //biosC0[0x1a] = psxBios_sys_c0_1a
3010 //biosC0[0x1b] = psxBios_KernelRedirect;
3011 //biosC0[0x1c] = psxBios_PatchAOTable;
3012//************** THE END ***************************************
3013/**/
3014 base = 0x1000;
3015 size = sizeof(EvCB) * 32;
3016 Event = (void *)&psxR[base]; base += size * 6;
3017 memset(Event, 0, size * 6);
3018 HwEV = Event;
3019 EvEV = Event + 32;
3020 RcEV = Event + 32 * 2;
3021 UeEV = Event + 32 * 3;
3022 SwEV = Event + 32 * 4;
3023 ThEV = Event + 32 * 5;
3024
3025 ptr = (u32 *)&psxM[0x0874]; // b0 table
3026 ptr[0] = SWAPu32(0x4c54 - 0x884);
3027
3028 ptr = (u32 *)&psxM[0x0674]; // c0 table
3029 ptr[6] = SWAPu32(0xc80);
3030
3031 memset(SysIntRP, 0, sizeof(SysIntRP));
3032 memset(Thread, 0, sizeof(Thread));
3033 Thread[0].status = 2; // main thread
3034
832f0c3c 3035 pad_stopped = 1;
c62b43c9 3036 jmp_int = NULL;
3037 pad_buf = NULL;
3038 pad_buf1 = NULL;
3039 pad_buf2 = NULL;
3040 pad_buf1len = pad_buf2len = 0;
3041 heap_addr = NULL;
3042 heap_end = NULL;
26b964b5 3043 heap_size = 0;
c62b43c9 3044 CardState = -1;
3045 CurThread = 0;
3046 memset(FDesc, 0, sizeof(FDesc));
832f0c3c 3047 card_active_chan = 0;
c62b43c9 3048
ef79bbde
P		 3049 psxMu32ref(0x0150) = SWAPu32(0x160);
3050 psxMu32ref(0x0154) = SWAPu32(0x320);
3051 psxMu32ref(0x0160) = SWAPu32(0x248);
3052 strcpy((char *)&psxM[0x248], "bu");
3053/* psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
3054 psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
3055 psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
3056 psxMu32ref(0x09e0) = SWAPu32(0x43d0);
3057 psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
3058*/
3059 // opcode HLE
3060 psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
bf643fd9 3061 /* Whatever this does, it actually breaks CTR, even without the uninitiliazed memory patch.
3062 Normally games shouldn't read from address 0 yet they do. See explanation below in details. */
3063 //psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
ef79bbde
P		 3064 psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
3065 psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
3066 psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
3067 psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
3068 psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
3069 psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
3070 psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
3071 psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
3072
3073 // initial stack pointer for BIOS interrupt
3074 psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
3075
3076 // initial RNG seed
3077 psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
3078
3079 // fonts
3080 len = 0x80000 - 0x66000;
3081 uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
3082 len = 0x80000 - 0x69d68;
3083 uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
3084
3085 // memory size 2 MB
3086 psxHu32ref(0x1060) = SWAPu32(0x00000b88);
3087
3088 hleSoftCall = FALSE;
bf643fd9 3089
3090 /* Some games like R-Types, CTR, Fade to Black read from adress 0x00000000 due to uninitialized pointers.
3091 See Garbage Area at Address 00000000h in Nocash PSX Specfications for more information.
3092 R-type will work if PsxM[0] is non-zero. (Meaning that it should not be 00000003h as he implies).
3093 Crash Team Racing will refuse to boot if psxM[2] and psx[3] are not set to 0.
3094 Fade to Black can crash upon memory card access if byte 5 is set to the wrong value.
3095 */
3096 psxM[0] = SWAPu32(0x3C);
3097 psxM[1] = SWAPu32(0x1A);
3098 psxM[2] = SWAPu32(0x00);
3099 psxM[3] = SWAPu32(0x00);
3100 psxM[4] = SWAPu32(0x27);
3101 psxM[5] = SWAPu32(0x5A);
3102 psxM[6] = SWAPu32(0x0C);
3103 psxM[7] = SWAPu32(0x80);
ef79bbde
P		 3104}
3105
3106void psxBiosShutdown() {
3107}
3108
3109#define psxBios_PADpoll(pad) { \
3110 PAD##pad##_startPoll(pad); \
3111 pad_buf##pad[0] = 0; \
3112 pad_buf##pad[1] = PAD##pad##_poll(0x42); \
3113 if (!(pad_buf##pad[1] & 0x0f)) { \
3114 bufcount = 32; \
3115 } else { \
3116 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
3117 } \
3118 PAD##pad##_poll(0); \
3119 i = 2; \
3120 while (bufcount--) { \
3121 pad_buf##pad[i++] = PAD##pad##_poll(0); \
3122 } \
3123}
3124
3125void biosInterrupt() {
3126 int i, bufcount;
3127
3128// if (psxHu32(0x1070) & 0x1) { // Vsync
3129 if (pad_buf != NULL) {
3130 u32 *buf = (u32*)pad_buf;
3131
3132 if (!Config.UseNet) {
3133 PAD1_startPoll(1);
3134 if (PAD1_poll(0x42) == 0x23) {
3135 PAD1_poll(0);
3136 *buf = PAD1_poll(0) << 8;
3137 *buf |= PAD1_poll(0);
3138 PAD1_poll(0);
3139 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
3140 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
3141 } else {
3142 PAD1_poll(0);
3143 *buf = PAD1_poll(0) << 8;
3144 *buf|= PAD1_poll(0);
3145 }
3146
3147 PAD2_startPoll(2);
3148 if (PAD2_poll(0x42) == 0x23) {
3149 PAD2_poll(0);
3150 *buf |= PAD2_poll(0) << 24;
3151 *buf |= PAD2_poll(0) << 16;
3152 PAD2_poll(0);
3153 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
3154 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
3155 } else {
3156 PAD2_poll(0);
3157 *buf |= PAD2_poll(0) << 24;
3158 *buf |= PAD2_poll(0) << 16;
3159 }
3160 } else {
3161 u16 data;
3162
3163 PAD1_startPoll(1);
3164 PAD1_poll(0x42);
3165 PAD1_poll(0);
3166 data = PAD1_poll(0) << 8;
3167 data |= PAD1_poll(0);
3168
3169 if (NET_sendPadData(&data, 2) == -1)
3170 netError();
3171
3172 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
3173 netError();
3174 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3175 netError();
3176 }
3177 }
3178 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3179 psxBios_PADpoll(1);
3180
3181 if (NET_sendPadData(pad_buf1, i) == -1)
3182 netError();
3183
3184 if (NET_recvPadData(pad_buf1, 1) == -1)
3185 netError();
3186 if (NET_recvPadData(pad_buf2, 2) == -1)
3187 netError();
3188 } else {
f25c285b 3189 if (!pad_stopped) {
3190 if (pad_buf1) {
3191 psxBios_PADpoll(1);
3192 }
ef79bbde 3193
f25c285b 3194 if (pad_buf2) {
3195 psxBios_PADpoll(2);
3196 }
ef79bbde
P		 3197 }
3198 }
3199
3200 if (psxHu32(0x1070) & 0x1) { // Vsync
3201 if (RcEV[3][1].status == EvStACTIVE) {
3202 softCall(RcEV[3][1].fhandler);
3203// hwWrite32(0x1f801070, ~(1));
3204 }
3205 }
3206
3207 if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3208 int i;
3209
3210 for (i = 0; i < 3; i++) {
3211 if (psxHu32(0x1070) & (1 << (i + 4))) {
3212 if (RcEV[i][1].status == EvStACTIVE) {
3213 softCall(RcEV[i][1].fhandler);
3214 }
3215 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3216 }
3217 }
3218 }
3219}
3220
3221void psxBiosException() {
3222 int i;
3223
3224 switch (psxRegs.CP0.n.Cause & 0x3c) {
3225 case 0x00: // Interrupt
f23c2241 3226 interrupt_r26=psxRegs.CP0.n.EPC;
ef79bbde
P		 3227#ifdef PSXCPU_LOG
3228// PSXCPU_LOG("interrupt\n");
3229#endif
3230 SaveRegs();
3231
3232 sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3233
3234 biosInterrupt();
3235
3236 for (i = 0; i < 8; i++) {
3237 if (SysIntRP[i]) {
3238 u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3239
3240 s0 = queue[2];
3241 softCall(queue[1]);
3242 }
3243 }
3244
3245 if (jmp_int != NULL) {
3246 int i;
3247
3248 psxHwWrite32(0x1f801070, 0xffffffff);
3249
3250 ra = jmp_int[0];
3251 sp = jmp_int[1];
3252 fp = jmp_int[2];
3253 for (i = 0; i < 8; i++) // s0-s7
3254 psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3255 gp = jmp_int[11];
3256
3257 v0 = 1;
3258 pc0 = ra;
3259 return;
3260 }
3261 psxHwWrite16(0x1f801070, 0);
3262 break;
3263
3264 case 0x20: // Syscall
3265#ifdef PSXCPU_LOG
3266 PSXCPU_LOG("syscall exp %x\n", a0);
3267#endif
3268 switch (a0) {
3269 case 1: // EnterCritical - disable irq's
79dad1b3 3270 /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3271 v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3272 psxRegs.CP0.n.Status &= ~0x404;
ef79bbde
P		 3273 break;
3274
3275 case 2: // ExitCritical - enable irq's
3276 psxRegs.CP0.n.Status |= 0x404;
3277 break;
a946d159 3278 /* Normally this should cover SYS(00h, SYS(04h but they don't do anything relevant so... */
3279 default:
3280 break;
ef79bbde
P		 3281 }
3282 pc0 = psxRegs.CP0.n.EPC + 4;
3283
3284 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3285 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3286 return;
3287
3288 default:
3289#ifdef PSXCPU_LOG
3290 PSXCPU_LOG("unknown bios exception!\n");
3291#endif
3292 break;
3293 }
3294
3295 pc0 = psxRegs.CP0.n.EPC;
3296 if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3297
3298 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3299 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3300}
3301
3302#define bfreeze(ptr, size) { \
3303 if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3304 if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3305 base += size; \
3306}
3307
3308#define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3309#define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3310
3311#define bfreezepsxMptr(ptr, type) { \
3312 if (Mode == 1) { \
3313 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3314 else psxRu32ref(base) = 0; \
3315 } else { \
3316 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3317 else (ptr) = NULL; \
3318 } \
3319 base += sizeof(u32); \
3320}
3321
3322void psxBiosFreeze(int Mode) {
3323 u32 base = 0x40000;
3324
3325 bfreezepsxMptr(jmp_int, u32);
3326 bfreezepsxMptr(pad_buf, int);
3327 bfreezepsxMptr(pad_buf1, char);
3328 bfreezepsxMptr(pad_buf2, char);
3329 bfreezepsxMptr(heap_addr, u32);
3330 bfreezel(&pad_buf1len);
3331 bfreezel(&pad_buf2len);
3332 bfreezes(regs);
3333 bfreezes(SysIntRP);
3334 bfreezel(&CardState);
3335 bfreezes(Thread);
3336 bfreezel(&CurThread);
3337 bfreezes(FDesc);
e9fda093 3338 bfreezel(&card_active_chan);
a15f3544 3339 bfreezel(&pad_stopped);
17b2d969 3340 bfreezel(&heap_size);
ef79bbde 3341}
ARM optimized PCSX fork