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psxbios: Add note and update copyright.
[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 s32 n=0;
869 v0 = a0;
870 if (a0 == 0 || a2 > 0x7FFFFFFF)
871 {
872 pc0 = ra;
873 return;
874 }
875 while ((s32)a2-- > 0) {
876 n++;
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;
927
5ec7acdf 928 while ((s32)a2-- > 0) {
ef79bbde
P		 929 if (*p++ != (s8)a1) continue;
930 v0 = a0 + (p - (char *)Ra0 - 1);
931 pc0 = ra;
932 return;
933 }
934
935 v0 = 0; pc0 = ra;
936}
937
938void psxBios_rand() { // 0x2f
939 u32 s = psxMu32(0x9010) * 1103515245 + 12345;
940 v0 = (s >> 16) & 0x7fff;
941 psxMu32ref(0x9010) = SWAPu32(s);
942 pc0 = ra;
943}
944
945void psxBios_srand() { // 0x30
946 psxMu32ref(0x9010) = SWAPu32(a0);
947 pc0 = ra;
948}
949
950static u32 qscmpfunc, qswidth;
951
952static inline int qscmp(char *a, char *b) {
953 u32 sa0 = a0;
954
955 a0 = sa0 + (a - (char *)PSXM(sa0));
956 a1 = sa0 + (b - (char *)PSXM(sa0));
957
958 softCall2(qscmpfunc);
959
960 a0 = sa0;
961 return (s32)v0;
962}
963
964static inline void qexchange(char *i, char *j) {
965 char t;
966 int n = qswidth;
967
968 do {
969 t = *i;
970 *i++ = *j;
971 *j++ = t;
972 } while (--n);
973}
974
975static inline void q3exchange(char *i, char *j, char *k) {
976 char t;
977 int n = qswidth;
978
979 do {
980 t = *i;
981 *i++ = *k;
982 *k++ = *j;
983 *j++ = t;
984 } while (--n);
985}
986
987static void qsort_main(char *a, char *l) {
988 char *i, *j, *lp, *hp;
989 int c;
990 unsigned int n;
991
992start:
993 if ((n = l - a) <= qswidth)
994 return;
995 n = qswidth * (n / (2 * qswidth));
996 hp = lp = a + n;
997 i = a;
998 j = l - qswidth;
999 while (TRUE) {
1000 if (i < lp) {
1001 if ((c = qscmp(i, lp)) == 0) {
1002 qexchange(i, lp -= qswidth);
1003 continue;
1004 }
1005 if (c < 0) {
1006 i += qswidth;
1007 continue;
1008 }
1009 }
1010
1011loop:
1012 if (j > hp) {
1013 if ((c = qscmp(hp, j)) == 0) {
1014 qexchange(hp += qswidth, j);
1015 goto loop;
1016 }
1017 if (c > 0) {
1018 if (i == lp) {
1019 q3exchange(i, hp += qswidth, j);
1020 i = lp += qswidth;
1021 goto loop;
1022 }
1023 qexchange(i, j);
1024 j -= qswidth;
1025 i += qswidth;
1026 continue;
1027 }
1028 j -= qswidth;
1029 goto loop;
1030 }
1031
1032 if (i == lp) {
1033 if (lp - a >= l - hp) {
1034 qsort_main(hp + qswidth, l);
1035 l = lp;
1036 } else {
1037 qsort_main(a, lp);
1038 a = hp + qswidth;
1039 }
1040 goto start;
1041 }
1042
1043 q3exchange(j, lp -= qswidth, i);
1044 j = hp -= qswidth;
1045 }
1046}
1047
1048void psxBios_qsort() { // 0x31
1049 qswidth = a2;
1050 qscmpfunc = a3;
1051 qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2);
1052
1053 pc0 = ra;
1054}
1055
1056void psxBios_malloc() { // 0x33
808a13bd 1057 unsigned int *chunk, *newchunk = NULL;
1058 unsigned int dsize = 0, csize, cstat;
ef79bbde
P		 1059 int colflag;
1060#ifdef PSXBIOS_LOG
1061 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x33]);
1062#endif
26b964b5 1063 if (!a0 || (!heap_size || !heap_addr)) {
1064 v0 = 0;
1065 pc0 = ra;
1066 return;
1067 }
ef79bbde
P		 1068
1069 // scan through heap and combine free chunks of space
1070 chunk = heap_addr;
1071 colflag = 0;
1072 while(chunk < heap_end) {
1073 // get size and status of actual chunk
1074 csize = ((u32)*chunk) & 0xfffffffc;
1075 cstat = ((u32)*chunk) & 1;
1076
26b964b5 1077 // most probably broken heap descriptor
1078 // this fixes Burning Road
1079 if (*chunk == 0) {
1080 newchunk = chunk;
1081 dsize = ((uptr)heap_end - (uptr)chunk) - 4;
1082 colflag = 1;
1083 break;
1084 }
1085
ef79bbde
P		 1086 // it's a free chunk
1087 if(cstat == 1) {
1088 if(colflag == 0) {
1089 newchunk = chunk;
1090 dsize = csize;
1091 colflag = 1; // let's begin a new collection of free memory
1092 }
1093 else dsize += (csize+4); // add the new size including header
1094 }
1095 // not a free chunk: did we start a collection ?
1096 else {
1097 if(colflag == 1) { // collection is over
1098 colflag = 0;
1099 *newchunk = SWAP32(dsize | 1);
1100 }
1101 }
1102
1103 // next chunk
1104 chunk = (u32*)((uptr)chunk + csize + 4);
1105 }
1106 // if neccessary free memory on end of heap
1107 if (colflag == 1)
1108 *newchunk = SWAP32(dsize | 1);
1109
1110 chunk = heap_addr;
1111 csize = ((u32)*chunk) & 0xfffffffc;
1112 cstat = ((u32)*chunk) & 1;
1113 dsize = (a0 + 3) & 0xfffffffc;
1114
1115 // exit on uninitialized heap
1116 if (chunk == NULL) {
26b964b5 1117 printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0);
ef79bbde
P		 1118 v0 = 0;
1119 pc0 = ra;
1120 return;
1121 }
1122
1123 // search an unused chunk that is big enough until the end of the heap
26b964b5 1124 while ((dsize > csize || cstat==0) && chunk < heap_end ) {
ef79bbde 1125 chunk = (u32*)((uptr)chunk + csize + 4);
26b964b5 1126
1127 // catch out of memory
1128 if(chunk >= heap_end) {
1129 printf("malloc %x,%x: Out of memory error!\n",
1130 v0, a0);
1131 v0 = 0; pc0 = ra;
1132 return;
1133 }
1134
ef79bbde
P		 1135 csize = ((u32)*chunk) & 0xfffffffc;
1136 cstat = ((u32)*chunk) & 1;
1137 }
1138
ef79bbde
P		 1139 // allocate memory
1140 if(dsize == csize) {
1141 // chunk has same size
1142 *chunk &= 0xfffffffc;
26b964b5 1143 } else if (dsize > csize) {
1144 v0 = 0; pc0 = ra;
1145 return;
1146 } else {
ef79bbde
P		 1147 // split free chunk
1148 *chunk = SWAP32(dsize);
1149 newchunk = (u32*)((uptr)chunk + dsize + 4);
808a13bd 1150 *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1);
ef79bbde
P		 1151 }
1152
1153 // return pointer to allocated memory
26b964b5 1154 v0 = ((uptr)chunk - (uptr)psxM) + 4;
ef79bbde 1155 v0|= 0x80000000;
26b964b5 1156 //printf ("malloc %x,%x\n", v0, a0);
ef79bbde
P		 1157 pc0 = ra;
1158}
1159
1160void psxBios_free() { // 0x34
1161
1162#ifdef PSXBIOS_LOG
1163 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x34]);
1164#endif
1165
1166 SysPrintf("free %x: %x bytes\n", a0, *(u32*)(Ra0-4));
1167
ba4ecb8c 1168 if (a0)
1169 *(u32*)(Ra0-4) |= 1; // set chunk to free
ef79bbde
P		 1170 pc0 = ra;
1171}
1172
1173void psxBios_calloc() { // 0x37
02949f79 1174 void *pv0;
ef79bbde
P		 1175#ifdef PSXBIOS_LOG
1176 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x37]);
1177#endif
1178
1179 a0 = a0 * a1;
1180 psxBios_malloc();
02949f79 1181 pv0 = Rv0;
1182 if (pv0)
1183 memset(pv0, 0, a0);
ef79bbde
P		 1184}
1185
1186void psxBios_realloc() { // 0x38
1187 u32 block = a0;
1188 u32 size = a1;
1189#ifdef PSXBIOS_LOG
1190 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]);
1191#endif
1192
1193 a0 = block;
391b1d5b 1194 /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */
1195 if (block == 0)
1196 {
1197 psxBios_malloc();
1198 }
1199 /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */
1200 else if (size == 0)
1201 {
1202 psxBios_free();
1203 }
1204 /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */
1205 /* Note that it is not quite implemented this way here. */
1206 else
1207 {
1208 psxBios_free();
1209 a0 = size;
1210 psxBios_malloc();
1211 }
ef79bbde
P		 1212}
1213
1214
1215/* InitHeap(void *block , int n) */
1216void psxBios_InitHeap() { // 0x39
1217 unsigned int size;
1218
1219#ifdef PSXBIOS_LOG
1220 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x39]);
1221#endif
1222
1223 if (((a0 & 0x1fffff) + a1)>= 0x200000) size = 0x1ffffc - (a0 & 0x1fffff);
1224 else size = a1;
1225
1226 size &= 0xfffffffc;
1227
1228 heap_addr = (u32 *)Ra0;
a85ffa0e 1229 heap_size = size;
1230 heap_end = (u32 *)((u8 *)heap_addr + heap_size);
1231 /* HACKFIX: Commenting out this line fixes GTA2 crash */
1232 //*heap_addr = SWAP32(size | 1);
ef79bbde 1233
c979c3ee 1234 SysPrintf("InitHeap %x,%x : %x %x\n",a0,a1, (int)((uptr)heap_addr-(uptr)psxM), size);
ef79bbde
P		 1235
1236 pc0 = ra;
1237}
1238
1239void psxBios_getchar() { //0x3b
1240 v0 = getchar(); pc0 = ra;
1241}
1242
1243void psxBios_printf() { // 0x3f
1244 char tmp[1024];
1245 char tmp2[1024];
1246 u32 save[4];
1247 char *ptmp = tmp;
1248 int n=1, i=0, j;
02949f79 1249 void *psp;
1250
1251 psp = PSXM(sp);
1252 if (psp) {
1253 memcpy(save, psp, 4 * 4);
1254 psxMu32ref(sp) = SWAP32((u32)a0);
1255 psxMu32ref(sp + 4) = SWAP32((u32)a1);
1256 psxMu32ref(sp + 8) = SWAP32((u32)a2);
1257 psxMu32ref(sp + 12) = SWAP32((u32)a3);
1258 }
ef79bbde
P		 1259
1260 while (Ra0[i]) {
1261 switch (Ra0[i]) {
1262 case '%':
1263 j = 0;
1264 tmp2[j++] = '%';
1265_start:
1266 switch (Ra0[++i]) {
1267 case '.':
1268 case 'l':
1269 tmp2[j++] = Ra0[i]; goto _start;
1270 default:
1271 if (Ra0[i] >= '0' && Ra0[i] <= '9') {
1272 tmp2[j++] = Ra0[i];
1273 goto _start;
1274 }
1275 break;
1276 }
1277 tmp2[j++] = Ra0[i];
1278 tmp2[j] = 0;
1279
1280 switch (Ra0[i]) {
1281 case 'f': case 'F':
1282 ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break;
1283 case 'a': case 'A':
1284 case 'e': case 'E':
1285 case 'g': case 'G':
1286 ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break;
1287 case 'p':
888468ff 1288 case 'i': case 'u':
ef79bbde
P		 1289 case 'd': case 'D':
1290 case 'o': case 'O':
1291 case 'x': case 'X':
1292 ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break;
1293 case 'c':
1294 ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break;
1295 case 's':
1296 ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break;
1297 case '%':
1298 *ptmp++ = Ra0[i]; break;
1299 }
1300 i++;
1301 break;
1302 default:
1303 *ptmp++ = Ra0[i++];
1304 }
1305 }
1306 *ptmp = 0;
1307
02949f79 1308 if (psp)
1309 memcpy(psp, save, 4 * 4);
ef79bbde 1310
808a13bd 1311 SysPrintf("%s", tmp);
ef79bbde
P		 1312
1313 pc0 = ra;
1314}
1315
e7e1f572 1316void psxBios_format() { // 0x41
1317 if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0')
1318 {
1319 CreateMcd(Config.Mcd1);
1320 LoadMcd(1, Config.Mcd1);
1321 v0 = 1;
1322 }
1323 else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0')
1324 {
1325 CreateMcd(Config.Mcd2);
1326 LoadMcd(2, Config.Mcd2);
1327 v0 = 1;
1328 }
1329 else
1330 {
1331 v0 = 0;
1332 }
1333 pc0 = ra;
1334}
1335
ef79bbde
P		 1336/*
1337 * long Load(char *name, struct EXEC *header);
1338 */
1339
1340void psxBios_Load() { // 0x42
1341 EXE_HEADER eheader;
02949f79 1342 void *pa1;
ef79bbde
P		 1343
1344#ifdef PSXBIOS_LOG
1345 PSXBIOS_LOG("psxBios_%s: %s, %x\n", biosA0n[0x42], Ra0, a1);
1346#endif
1347
02949f79 1348 pa1 = Ra1;
1349 if (pa1 && LoadCdromFile(Ra0, &eheader) == 0) {
1350 memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC));
ef79bbde
P		 1351 v0 = 1;
1352 } else v0 = 0;
1353
1354 pc0 = ra;
1355}
1356
1357/*
1358 * int Exec(struct EXEC *header , int argc , char **argv);
1359 */
1360
1361void psxBios_Exec() { // 43
1362 EXEC *header = (EXEC*)Ra0;
1363 u32 tmp;
1364
1365#ifdef PSXBIOS_LOG
1366 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2);
1367#endif
1368
1369 header->_sp = sp;
1370 header->_fp = fp;
1371 header->_sp = sp;
1372 header->_gp = gp;
1373 header->ret = ra;
1374 header->base = s0;
1375
1376 if (header->S_addr != 0) {
1377 tmp = header->S_addr + header->s_size;
1378 sp = tmp;
1379 fp = sp;
1380 }
1381
1382 gp = header->gp0;
1383
1384 s0 = a0;
1385
1386 a0 = a1;
1387 a1 = a2;
1388
1389 ra = 0x8000;
1390 pc0 = header->_pc0;
1391}
1392
1393void psxBios_FlushCache() { // 44
1394#ifdef PSXBIOS_LOG
1395 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]);
1396#endif
1397
1398 pc0 = ra;
1399}
1400
1401void psxBios_GPU_dw() { // 0x46
1402 int size;
1403 s32 *ptr;
1404
1405#ifdef PSXBIOS_LOG
1406 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]);
1407#endif
1408
1409 GPU_writeData(0xa0000000);
1410 GPU_writeData((a1<<16)|(a0&0xffff));
1411 GPU_writeData((a3<<16)|(a2&0xffff));
1412 size = (a2*a3+1)/2;
1413 ptr = (s32*)PSXM(Rsp[4]); //that is correct?
1414 do {
1415 GPU_writeData(SWAP32(*ptr));
1416 ptr++;
1417 } while(--size);
1418
1419 pc0 = ra;
1420}
1421
1422void psxBios_mem2vram() { // 0x47
1423 int size;
1424
1425 GPU_writeData(0xa0000000);
1426 GPU_writeData((a1<<16)|(a0&0xffff));
1427 GPU_writeData((a3<<16)|(a2&0xffff));
1428 size = (a2*a3+1)/2;
1429 GPU_writeStatus(0x04000002);
1430 psxHwWrite32(0x1f8010f4,0);
1431 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1432 psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy...
1433 psxHwWrite32(0x1f8010a4,((size/16)<<16)|16);
1434 psxHwWrite32(0x1f8010a8,0x01000201);
1435
1436 pc0 = ra;
1437}
1438
1439void psxBios_SendGPU() { // 0x48
1440 GPU_writeStatus(a0);
ddbaf678 1441 gpuSyncPluginSR();
ef79bbde
P		 1442 pc0 = ra;
1443}
1444
1445void psxBios_GPU_cw() { // 0x49
1446 GPU_writeData(a0);
1447 pc0 = ra;
1448}
1449
1450void psxBios_GPU_cwb() { // 0x4a
1451 s32 *ptr = (s32*)Ra0;
1452 int size = a1;
1453 while(size--) {
1454 GPU_writeData(SWAP32(*ptr));
1455 ptr++;
1456 }
1457
1458 pc0 = ra;
1459}
1460
1461void psxBios_GPU_SendPackets() { //4b:
1462 GPU_writeStatus(0x04000002);
1463 psxHwWrite32(0x1f8010f4,0);
1464 psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800);
1465 psxHwWrite32(0x1f8010a0,a0);
1466 psxHwWrite32(0x1f8010a4,0);
1467 psxHwWrite32(0x1f8010a8,0x010000401);
1468 pc0 = ra;
1469}
1470
1471void psxBios_sys_a0_4c() { // 0x4c GPU relate
1472 psxHwWrite32(0x1f8010a8,0x00000401);
1473 GPU_writeData(0x0400000);
1474 GPU_writeData(0x0200000);
1475 GPU_writeData(0x0100000);
cd1ea245 1476 v0 = 0x1f801814;
ef79bbde
P		 1477 pc0 = ra;
1478}
1479
1480void psxBios_GPU_GetGPUStatus() { // 0x4d
1481 v0 = GPU_readStatus();
1482 pc0 = ra;
1483}
1484
1485#undef s_addr
1486
1487void psxBios_LoadExec() { // 51
1488 EXEC *header = (EXEC*)PSXM(0xf000);
1489 u32 s_addr, s_size;
1490
1491#ifdef PSXBIOS_LOG
1492 PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2);
1493#endif
1494 s_addr = a1; s_size = a2;
1495
1496 a1 = 0xf000;
1497 psxBios_Load();
1498
1499 header->S_addr = s_addr;
1500 header->s_size = s_size;
1501
1502 a0 = 0xf000; a1 = 0; a2 = 0;
1503 psxBios_Exec();
1504}
1505
1506void psxBios__bu_init() { // 70
1507#ifdef PSXBIOS_LOG
1508 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
1509#endif
1510
1511 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1512 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1513
1514 pc0 = ra;
1515}
1516
1517void psxBios__96_init() { // 71
1518#ifdef PSXBIOS_LOG
1519 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]);
1520#endif
1521
1522 pc0 = ra;
1523}
1524
1525void psxBios__96_remove() { // 72
1526#ifdef PSXBIOS_LOG
1527 PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
1528#endif
1529
1530 pc0 = ra;
1531}
1532
1533void psxBios_SetMem() { // 9f
1534 u32 new = psxHu32(0x1060);
1535
1536#ifdef PSXBIOS_LOG
1537 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1);
1538#endif
1539
1540 switch(a0) {
1541 case 2:
1542 psxHu32ref(0x1060) = SWAP32(new);
1543 psxMu32ref(0x060) = a0;
1544 SysPrintf("Change effective memory : %d MBytes\n",a0);
1545 break;
1546
1547 case 8:
1548 psxHu32ref(0x1060) = SWAP32(new | 0x300);
1549 psxMu32ref(0x060) = a0;
1550 SysPrintf("Change effective memory : %d MBytes\n",a0);
1551
1552 default:
1553 SysPrintf("Effective memory must be 2/8 MBytes\n");
1554 break;
1555 }
1556
1557 pc0 = ra;
1558}
1559
1560void psxBios__card_info() { // ab
1561#ifdef PSXBIOS_LOG
1562 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0);
1563#endif
76b81516 1564 u32 ret;
e9fda093 1565 card_active_chan = a0;
1566
76b81516 1567 switch (card_active_chan)
1568 {
1569 case 0x00: case 0x01: case 0x02: case 0x03:
1570 ret = Config.Mcd1[0] ? 0x2 : 0x8;
1571 break;
1572 case 0x10: case 0x11: case 0x12: case 0x13:
1573 ret = Config.Mcd2[0] ? 0x2 : 0x8;
1574 break;
1575 default:
1576#ifdef PSXBIOS_LOG
1577 PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
1578#endif
1579 ret = 0x11;
1580 break;
1581 }
1582
1583// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
ef79bbde
P		 1584// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1585 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
76b81516 1586 DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
ef79bbde
P		 1587
1588 v0 = 1; pc0 = ra;
1589}
1590
1591void psxBios__card_load() { // ac
1592#ifdef PSXBIOS_LOG
1593 PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0);
1594#endif
1595
e9fda093 1596 card_active_chan = a0;
1597
ef79bbde
P		 1598// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
1599 DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
1600
1601 v0 = 1; pc0 = ra;
1602}
1603
1604/* System calls B0 */
1605
1606void psxBios_SetRCnt() { // 02
1607#ifdef PSXBIOS_LOG
1608 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]);
1609#endif
1610
1611 a0&= 0x3;
1612 if (a0 != 3) {
1613 u32 mode=0;
1614
1615 psxRcntWtarget(a0, a1);
1616 if (a2&0x1000) mode|= 0x050; // Interrupt Mode
1617 if (a2&0x0100) mode|= 0x008; // Count to 0xffff
1618 if (a2&0x0010) mode|= 0x001; // Timer stop mode
1619 if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode
1620 else { if (a2&0x0001) mode|= 0x100; } // System Clock mode
1621
1622 psxRcntWmode(a0, mode);
1623 }
1624 pc0 = ra;
1625}
1626
1627void psxBios_GetRCnt() { // 03
1628#ifdef PSXBIOS_LOG
1629 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]);
1630#endif
1631
1632 a0&= 0x3;
1633 if (a0 != 3) v0 = psxRcntRcount(a0);
1634 else v0 = 0;
1635 pc0 = ra;
1636}
1637
1638void psxBios_StartRCnt() { // 04
1639#ifdef PSXBIOS_LOG
1640 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]);
1641#endif
1642
1643 a0&= 0x3;
1644 if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4))));
1645 else psxHu32ref(0x1074)|= SWAPu32(0x1);
1646 v0 = 1; pc0 = ra;
1647}
1648
1649void psxBios_StopRCnt() { // 05
1650#ifdef PSXBIOS_LOG
1651 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]);
1652#endif
1653
1654 a0&= 0x3;
1655 if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4))));
1656 else psxHu32ref(0x1074)&= SWAPu32(~0x1);
1657 pc0 = ra;
1658}
1659
1660void psxBios_ResetRCnt() { // 06
1661#ifdef PSXBIOS_LOG
1662 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]);
1663#endif
1664
1665 a0&= 0x3;
1666 if (a0 != 3) {
1667 psxRcntWmode(a0, 0);
1668 psxRcntWtarget(a0, 0);
1669 psxRcntWcount(a0, 0);
1670 }
1671 pc0 = ra;
1672}
1673
1674
1675/* gets ev for use with Event */
1676#define GetEv() \
1677 ev = (a0 >> 24) & 0xf; \
1678 if (ev == 0xf) ev = 0x5; \
1679 ev*= 32; \
1680 ev+= a0&0x1f;
1681
1682/* gets spec for use with Event */
1683#define GetSpec() \
1684 spec = 0; \
1685 switch (a1) { \
1686 case 0x0301: spec = 16; break; \
1687 case 0x0302: spec = 17; break; \
1688 default: \
1689 for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
1690 break; \
1691 }
1692
1693void psxBios_DeliverEvent() { // 07
1694 int ev, spec;
1695 int i;
1696
1697 GetEv();
1698 GetSpec();
1699
1700#ifdef PSXBIOS_LOG
1701 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
1702#endif
1703
1704 DeliverEvent(ev, spec);
1705
1706 pc0 = ra;
1707}
1708
1709void psxBios_OpenEvent() { // 08
1710 int ev, spec;
1711 int i;
1712
1713 GetEv();
1714 GetSpec();
1715
1716#ifdef PSXBIOS_LOG
1717 PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
1718#endif
1719
1720 Event[ev][spec].status = EvStWAIT;
1721 Event[ev][spec].mode = a2;
1722 Event[ev][spec].fhandler = a3;
1723
1724 v0 = ev | (spec << 8);
1725 pc0 = ra;
1726}
1727
1728void psxBios_CloseEvent() { // 09
1729 int ev, spec;
1730
1731 ev = a0 & 0xff;
1732 spec = (a0 >> 8) & 0xff;
1733
1734#ifdef PSXBIOS_LOG
1735 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
1736#endif
1737
1738 Event[ev][spec].status = EvStUNUSED;
1739
1740 v0 = 1; pc0 = ra;
1741}
1742
1743void psxBios_WaitEvent() { // 0a
1744 int ev, spec;
1745
1746 ev = a0 & 0xff;
1747 spec = (a0 >> 8) & 0xff;
ef79bbde
P		 1748#ifdef PSXBIOS_LOG
1749 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
1750#endif
d95c9dcb 1751 if (Event[ev][spec].status == EvStUNUSED)
1752 {
1753 v0 = 0;
1754 pc0 = ra;
1755 return;
1756 }
ef79bbde 1757
d95c9dcb 1758 if (Event[ev][spec].status == EvStALREADY)
1759 {
1760 /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
1761 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1762 v0 = 1;
1763 pc0 = ra;
1764 return;
1765 }
ef79bbde 1766
d95c9dcb 1767 v0 = 0;
1768 pc0 = ra;
ef79bbde
P		 1769}
1770
1771void psxBios_TestEvent() { // 0b
1772 int ev, spec;
1773
1774 ev = a0 & 0xff;
1775 spec = (a0 >> 8) & 0xff;
1776
b4ae2532 1777 if (Event[ev][spec].status == EvStALREADY)
1778 {
1779 if (!(Event[ev][spec].mode == EvMdINTR)) Event[ev][spec].status = EvStACTIVE;
1780 v0 = 1;
1781 }
1782 else
1783 {
1784 v0 = 0;
1785 }
ef79bbde
P		 1786
1787#ifdef PSXBIOS_LOG
1788 PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
1789#endif
1790
1791 pc0 = ra;
1792}
1793
1794void psxBios_EnableEvent() { // 0c
1795 int ev, spec;
1796
1797 ev = a0 & 0xff;
1798 spec = (a0 >> 8) & 0xff;
1799
1800#ifdef PSXBIOS_LOG
1801 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
1802#endif
1803
1804 Event[ev][spec].status = EvStACTIVE;
1805
1806 v0 = 1; pc0 = ra;
1807}
1808
1809void psxBios_DisableEvent() { // 0d
1810 int ev, spec;
1811
1812 ev = a0 & 0xff;
1813 spec = (a0 >> 8) & 0xff;
1814
1815#ifdef PSXBIOS_LOG
1816 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
1817#endif
1818
1819 Event[ev][spec].status = EvStWAIT;
1820
1821 v0 = 1; pc0 = ra;
1822}
1823
1824/*
1825 * long OpenTh(long (*func)(), unsigned long sp, unsigned long gp);
1826 */
1827
1828void psxBios_OpenTh() { // 0e
1829 int th;
1830
1831 for (th=1; th<8; th++)
a66d3058 1832 {
ef79bbde
P		 1833 if (Thread[th].status == 0) break;
1834
a66d3058 1835 }
1836 if (th == 8) {
1837 // Feb 2019 - Added out-of-bounds fix caught by cppcheck:
1838 // When no free TCB is found, return 0xffffffff according to Nocash doc.
1839#ifdef PSXBIOS_LOG
1840 PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__);
1841#endif
1842 v0 = 0xffffffff;
1843 pc0 = ra;
1844 return;
1845 }
ef79bbde
P		 1846#ifdef PSXBIOS_LOG
1847 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th);
1848#endif
1849
1850 Thread[th].status = 1;
1851 Thread[th].func = a0;
1852 Thread[th].reg[29] = a1;
1853 Thread[th].reg[28] = a2;
1854
1855 v0 = th; pc0 = ra;
1856}
1857
1858/*
1859 * int CloseTh(long thread);
1860 */
1861
1862void psxBios_CloseTh() { // 0f
1863 int th = a0 & 0xff;
1864
1865#ifdef PSXBIOS_LOG
1866 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th);
1867#endif
1868
1869 if (Thread[th].status == 0) {
1870 v0 = 0;
1871 } else {
1872 Thread[th].status = 0;
1873 v0 = 1;
1874 }
1875
1876 pc0 = ra;
1877}
1878
1879/*
1880 * int ChangeTh(long thread);
1881 */
1882
1883void psxBios_ChangeTh() { // 10
1884 int th = a0 & 0xff;
1885
1886#ifdef PSXBIOS_LOG
1887// PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x10], th);
1888#endif
1889
1890 if (Thread[th].status == 0 || CurThread == th) {
1891 v0 = 0;
1892
1893 pc0 = ra;
1894 } else {
1895 v0 = 1;
1896
1897 if (Thread[CurThread].status == 2) {
1898 Thread[CurThread].status = 1;
1899 Thread[CurThread].func = ra;
1900 memcpy(Thread[CurThread].reg, psxRegs.GPR.r, 32*4);
1901 }
1902
1903 memcpy(psxRegs.GPR.r, Thread[th].reg, 32*4);
1904 pc0 = Thread[th].func;
1905 Thread[th].status = 2;
1906 CurThread = th;
1907 }
1908}
1909
1910void psxBios_InitPAD() { // 0x12
1911#ifdef PSXBIOS_LOG
1912 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x12]);
1913#endif
1914
1915 pad_buf1 = (char*)Ra0;
1916 pad_buf1len = a1;
1917 pad_buf2 = (char*)Ra2;
1918 pad_buf2len = a3;
1919
1920 v0 = 1; pc0 = ra;
1921}
1922
1923void psxBios_StartPAD() { // 13
1924#ifdef PSXBIOS_LOG
1925 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]);
1926#endif
f25c285b 1927 pad_stopped = 0;
ef79bbde
P		 1928 psxHwWrite16(0x1f801074, (unsigned short)(psxHwRead16(0x1f801074) | 0x1));
1929 psxRegs.CP0.n.Status |= 0x401;
1930 pc0 = ra;
1931}
1932
1933void psxBios_StopPAD() { // 14
1934#ifdef PSXBIOS_LOG
1935 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]);
1936#endif
f25c285b 1937 pad_stopped = 1;
8a0245bb 1938 if (pad_buf == 0){
ef79bbde
P		 1939 pad_buf1 = NULL;
1940 pad_buf2 = NULL;
8a0245bb 1941 }
ef79bbde
P		 1942 pc0 = ra;
1943}
1944
1945void psxBios_PAD_init() { // 15
1946#ifdef PSXBIOS_LOG
1947 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]);
1948#endif
a824e83d 1949 if (!(a0 == 0x20000000 || a0 == 0x20000001))
1950 {
1951 v0 = 0;
1952 pc0 = ra;
1953 return;
1954 }
ef79bbde
P		 1955 psxHwWrite16(0x1f801074, (u16)(psxHwRead16(0x1f801074) | 0x1));
1956 pad_buf = (int *)Ra1;
1957 *pad_buf = -1;
1958 psxRegs.CP0.n.Status |= 0x401;
a824e83d 1959 v0 = 2;
ef79bbde
P		 1960 pc0 = ra;
1961}
1962
1963void psxBios_PAD_dr() { // 16
1964#ifdef PSXBIOS_LOG
1965 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]);
1966#endif
1967
1968 v0 = -1; pc0 = ra;
1969}
1970
1971void psxBios_ReturnFromException() { // 17
1972 LoadRegs();
1973
1974 pc0 = psxRegs.CP0.n.EPC;
1975 if (psxRegs.CP0.n.Cause & 0x80000000) pc0 += 4;
1976
1977 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
1978 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
1979}
1980
1981void psxBios_ResetEntryInt() { // 18
1982#ifdef PSXBIOS_LOG
1983 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]);
1984#endif
1985
1986 jmp_int = NULL;
1987 pc0 = ra;
1988}
1989
1990void psxBios_HookEntryInt() { // 19
1991#ifdef PSXBIOS_LOG
1992 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x19]);
1993#endif
1994
1995 jmp_int = (u32*)Ra0;
1996 pc0 = ra;
1997}
1998
1999void psxBios_UnDeliverEvent() { // 0x20
2000 int ev, spec;
2001 int i;
2002
2003 GetEv();
2004 GetSpec();
2005
2006#ifdef PSXBIOS_LOG
2007 PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
2008#endif
2009
2010 if (Event[ev][spec].status == EvStALREADY &&
2011 Event[ev][spec].mode == EvMdNOINTR)
2012 Event[ev][spec].status = EvStACTIVE;
2013
2014 pc0 = ra;
2015}
2016
595a136b 2017char ffile[64], *pfile;
2018int nfile;
2019static void buopen(int mcd, u8 *ptr, u8 *cfg)
2020{
2021 int i;
2022 u8 *fptr = ptr;
2023
2024 strcpy(FDesc[1 + mcd].name, Ra0+5);
2025 FDesc[1 + mcd].offset = 0;
2026 FDesc[1 + mcd].mode = a1;
2027
2028 for (i=1; i<16; i++) {
2029 fptr += 128;
2030 if ((*fptr & 0xF0) != 0x50) continue;
2031 if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue;
2032 FDesc[1 + mcd].mcfile = i;
2033 SysPrintf("open %s\n", fptr+0xa);
2034 v0 = 1 + mcd;
2035 break;
2036 }
2037 if (a1 & 0x200 && v0 == -1) { /* FCREAT */
2038 fptr = ptr;
2039 for (i=1; i<16; i++) {
2040 int j, xor, nblk = a1 >> 16;
2041 u8 *pptr, *fptr2;
2042
2043 fptr += 128;
2044 if ((*fptr & 0xF0) != 0xa0) continue;
2045
2046 FDesc[1 + mcd].mcfile = i;
2047 fptr[0] = 0x51;
2048 fptr[4] = 0x00;
2049 fptr[5] = 0x20 * nblk;
2050 fptr[6] = 0x00;
2051 fptr[7] = 0x00;
2052 strcpy(fptr+0xa, FDesc[1 + mcd].name);
2053 pptr = fptr2 = fptr;
2054 for(j=2; j<=nblk; j++) {
2055 int k;
2056 for(i++; i<16; i++) {
2057 fptr2 += 128;
2058
2059 memset(fptr2, 0, 128);
2060 fptr2[0] = j < nblk ? 0x52 : 0x53;
2061 pptr[8] = i - 1;
2062 pptr[9] = 0;
2063 for (k=0, xor=0; k<127; k++) xor^= pptr[k];
2064 pptr[127] = xor;
2065 pptr = fptr2;
2066 break;
2067 }
2068 /* shouldn't this return ENOSPC if i == 16? */
2069 }
2070 pptr[8] = pptr[9] = 0xff;
2071 for (j=0, xor=0; j<127; j++) xor^= pptr[j];
2072 pptr[127] = xor;
2073 SysPrintf("openC %s %d\n", ptr, nblk);
2074 v0 = 1 + mcd;
2075 /* just go ahead and resave them all */
2076 SaveMcd(cfg, ptr, 128, 128 * 15);
2077 break;
2078 }
2079 /* shouldn't this return ENOSPC if i == 16? */
2080 }
ef79bbde
P		 2081}
2082
2083/*
2084 * int open(char *name , int mode);
2085 */
2086
2087void psxBios_open() { // 0x32
2088 int i;
2089 char *ptr;
02949f79 2090 void *pa0 = Ra0;
ef79bbde
P		 2091
2092#ifdef PSXBIOS_LOG
2093 PSXBIOS_LOG("psxBios_%s: %s,%x\n", biosB0n[0x32], Ra0, a1);
2094#endif
2095
2096 v0 = -1;
2097
02949f79 2098 if (pa0) {
2099 if (!strncmp(pa0, "bu00", 4)) {
595a136b 2100 buopen(1, Mcd1Data, Config.Mcd1);
02949f79 2101 }
ef79bbde 2102
02949f79 2103 if (!strncmp(pa0, "bu10", 4)) {
595a136b 2104 buopen(2, Mcd2Data, Config.Mcd2);
02949f79 2105 }
ef79bbde
P		 2106 }
2107
2108 pc0 = ra;
2109}
2110
2111/*
2112 * int lseek(int fd , int offset , int whence);
2113 */
2114
2115void psxBios_lseek() { // 0x33
2116#ifdef PSXBIOS_LOG
2117 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2);
2118#endif
2119
2120 switch (a2) {
2121 case 0: // SEEK_SET
2122 FDesc[a0].offset = a1;
2123 v0 = a1;
2124// DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2125// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2126 break;
2127
2128 case 1: // SEEK_CUR
2129 FDesc[a0].offset+= a1;
2130 v0 = FDesc[a0].offset;
2131 break;
2132 }
2133
2134 pc0 = ra;
2135}
2136
595a136b 2137
ef79bbde
P		 2138/*
2139 * int read(int fd , void *buf , int nbytes);
2140 */
2141
2142void psxBios_read() { // 0x34
2143 char *ptr;
02949f79 2144 void *pa1 = Ra1;
ef79bbde
P		 2145
2146#ifdef PSXBIOS_LOG
2147 PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2);
2148#endif
2149
2150 v0 = -1;
2151
02949f79 2152 if (pa1) {
2153 switch (a0) {
595a136b 2154 case 2: buread(pa1, 1, a2); break;
2155 case 3: buread(pa1, 2, a2); break;
02949f79 2156 }
ef79bbde
P		 2157 }
2158
2159 pc0 = ra;
2160}
2161
ef79bbde
P		 2162/*
2163 * int write(int fd , void *buf , int nbytes);
2164 */
2165
2166void psxBios_write() { // 0x35/0x03
2167 char *ptr;
02949f79 2168 void *pa1 = Ra1;
2169
2170#ifdef PSXBIOS_LOG
2171 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2);
2172#endif
2173
2174 v0 = -1;
2175 if (!pa1) {
2176 pc0 = ra;
2177 return;
2178 }
ef79bbde
P		 2179
2180 if (a0 == 1) { // stdout
02949f79 2181 char *ptr = pa1;
ef79bbde 2182
02949f79 2183 v0 = a2;
ef79bbde
P		 2184 while (a2 > 0) {
2185 SysPrintf("%c", *ptr++); a2--;
2186 }
2187 pc0 = ra; return;
2188 }
ef79bbde
P		 2189
2190 switch (a0) {
595a136b 2191 case 2: buwrite(pa1, 1, a2); break;
2192 case 3: buwrite(pa1, 2, a2); break;
ef79bbde
P		 2193 }
2194
2195 pc0 = ra;
2196}
2197
2198/*
2199 * int close(int fd);
2200 */
2201
2202void psxBios_close() { // 0x36
2203#ifdef PSXBIOS_LOG
2204 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0);
2205#endif
2206
2207 v0 = a0;
2208 pc0 = ra;
2209}
2210
2211void psxBios_putchar() { // 3d
2212 SysPrintf("%c", (char)a0);
2213 pc0 = ra;
2214}
2215
2216void psxBios_puts() { // 3e/3f
808a13bd 2217 SysPrintf("%s", Ra0);
ef79bbde
P		 2218 pc0 = ra;
2219}
2220
2221char ffile[64], *pfile;
2222int nfile;
2223
f1514614 2224
2225/* To avoid any issues with different behaviour when using the libc's own strlen instead.
2226 * We want to mimic the PSX's behaviour in this case for bufile. */
2227static size_t strlen_internal(char* p)
2228{
2229 size_t size_of_array = 0;
2230 while (*p++) size_of_array++;
2231 return size_of_array;
2232}
2233
ef79bbde 2234#define bufile(mcd) { \
f1514614 2235 size_t size_of_name = strlen_internal(dir->name); \
ef79bbde
P		 2236 while (nfile < 16) { \
2237 int match=1; \
2238 \
595a136b 2239 ptr = Mcd##mcd##Data + 128 * (nfile + 1); \
ef79bbde
P		 2240 nfile++; \
2241 if ((*ptr & 0xF0) != 0x50) continue; \
595a136b 2242 /* Bug link files show up as free block. */ \
2243 if (!ptr[0xa]) continue; \
ef79bbde
P		 2244 ptr+= 0xa; \
2245 if (pfile[0] == 0) { \
f1514614 2246 strncpy(dir->name, ptr, sizeof(dir->name) - 1); \
2247 if (size_of_name < sizeof(dir->name)) dir->name[size_of_name] = '\0'; \
ef79bbde
P		 2248 } else for (i=0; i<20; i++) { \
2249 if (pfile[i] == ptr[i]) { \
595a136b 2250 dir->name[i] = ptr[i]; continue; } \
ef79bbde
P		 2251 if (pfile[i] == '?') { \
2252 dir->name[i] = ptr[i]; continue; } \
2253 if (pfile[i] == '*') { \
2254 strcpy(dir->name+i, ptr+i); break; } \
2255 match = 0; break; \
2256 } \
2257 SysPrintf("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \
595a136b 2258 if (match == 0) { continue; } \
ef79bbde
P		 2259 dir->size = 8192; \
2260 v0 = _dir; \
2261 break; \
2262 } \
2263}
2264
2265/*
2266 * struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir);
2267 */
2268
2269void psxBios_firstfile() { // 42
2270 struct DIRENTRY *dir = (struct DIRENTRY *)Ra1;
02949f79 2271 void *pa0 = Ra0;
ef79bbde
P		 2272 u32 _dir = a1;
2273 char *ptr;
2274 int i;
2275
2276#ifdef PSXBIOS_LOG
2277 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x42], Ra0);
2278#endif
2279
2280 v0 = 0;
2281
02949f79 2282 if (pa0) {
2283 strcpy(ffile, pa0);
2284 pfile = ffile+5;
2285 nfile = 1;
2286 if (!strncmp(pa0, "bu00", 4)) {
857fabea 2287 // firstfile() calls _card_read() internally, so deliver it's event
2288 DeliverEvent(0x11, 0x2);
02949f79 2289 bufile(1);
2290 } else if (!strncmp(pa0, "bu10", 4)) {
857fabea 2291 // firstfile() calls _card_read() internally, so deliver it's event
2292 DeliverEvent(0x11, 0x2);
02949f79 2293 bufile(2);
2294 }
ef79bbde
P		 2295 }
2296
2297 pc0 = ra;
2298}
2299
2300/*
2301 * struct DIRENTRY* nextfile(struct DIRENTRY *dir);
2302 */
2303
2304void psxBios_nextfile() { // 43
2305 struct DIRENTRY *dir = (struct DIRENTRY *)Ra0;
2306 u32 _dir = a0;
2307 char *ptr;
2308 int i;
2309
2310#ifdef PSXBIOS_LOG
2311 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x43], dir->name);
2312#endif
2313
2314 v0 = 0;
2315
2316 if (!strncmp(ffile, "bu00", 4)) {
2317 bufile(1);
2318 }
2319
2320 if (!strncmp(ffile, "bu10", 4)) {
2321 bufile(2);
2322 }
2323
2324 pc0 = ra;
2325}
2326
2327#define burename(mcd) { \
2328 for (i=1; i<16; i++) { \
2329 int namelen, j, xor = 0; \
2330 ptr = Mcd##mcd##Data + 128 * i; \
2331 if ((*ptr & 0xF0) != 0x50) continue; \
2332 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2333 namelen = strlen(Ra1+5); \
2334 memcpy(ptr+0xa, Ra1+5, namelen); \
2335 memset(ptr+0xa+namelen, 0, 0x75-namelen); \
2336 for (j=0; j<127; j++) xor^= ptr[j]; \
2337 ptr[127] = xor; \
2338 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \
2339 v0 = 1; \
2340 break; \
2341 } \
2342}
2343
2344/*
2345 * int rename(char *old, char *new);
2346 */
2347
2348void psxBios_rename() { // 44
02949f79 2349 void *pa0 = Ra0;
2350 void *pa1 = Ra1;
ef79bbde
P		 2351 char *ptr;
2352 int i;
2353
2354#ifdef PSXBIOS_LOG
2355 PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1);
2356#endif
2357
2358 v0 = 0;
2359
02949f79 2360 if (pa0 && pa1) {
2361 if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) {
2362 burename(1);
2363 }
ef79bbde 2364
02949f79 2365 if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) {
2366 burename(2);
2367 }
ef79bbde
P		 2368 }
2369
2370 pc0 = ra;
2371}
2372
2373
2374#define budelete(mcd) { \
2375 for (i=1; i<16; i++) { \
2376 ptr = Mcd##mcd##Data + 128 * i; \
2377 if ((*ptr & 0xF0) != 0x50) continue; \
2378 if (strcmp(Ra0+5, ptr+0xa)) continue; \
2379 *ptr = (*ptr & 0xf) | 0xA0; \
2380 SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \
2381 SysPrintf("delete %s\n", ptr+0xa); \
2382 v0 = 1; \
2383 break; \
2384 } \
2385}
2386
2387/*
2388 * int delete(char *name);
2389 */
2390
2391void psxBios_delete() { // 45
02949f79 2392 void *pa0 = Ra0;
ef79bbde
P		 2393 char *ptr;
2394 int i;
2395
2396#ifdef PSXBIOS_LOG
2397 PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0);
2398#endif
2399
2400 v0 = 0;
2401
02949f79 2402 if (pa0) {
2403 if (!strncmp(pa0, "bu00", 4)) {
2404 budelete(1);
2405 }
ef79bbde 2406
02949f79 2407 if (!strncmp(pa0, "bu10", 4)) {
2408 budelete(2);
2409 }
ef79bbde
P		 2410 }
2411
2412 pc0 = ra;
2413}
2414
2415void psxBios_InitCARD() { // 4a
2416#ifdef PSXBIOS_LOG
2417 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
2418#endif
2419
2420 CardState = 0;
2421
2422 pc0 = ra;
2423}
2424
2425void psxBios_StartCARD() { // 4b
2426#ifdef PSXBIOS_LOG
2427 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
2428#endif
2429
2430 if (CardState == 0) CardState = 1;
2431
2432 pc0 = ra;
2433}
2434
2435void psxBios_StopCARD() { // 4c
2436#ifdef PSXBIOS_LOG
2437 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
2438#endif
2439
2440 if (CardState == 1) CardState = 0;
2441
2442 pc0 = ra;
2443}
2444
2445void psxBios__card_write() { // 0x4e
02949f79 2446 void *pa2 = Ra2;
ef79bbde
P		 2447 int port;
2448
2449#ifdef PSXBIOS_LOG
2450 PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2);
2451#endif
bd48ba5e 2452 /* Function also accepts sector 400h (a bug) */
2453 if (!(a1 <= 0x400))
2454 {
2455 /* Invalid sectors */
2456 v0 = 0; pc0 = ra;
2457 return;
2458 }
e9fda093 2459 card_active_chan = a0;
ef79bbde
P		 2460 port = a0 >> 4;
2461
02949f79 2462 if (pa2) {
2463 if (port == 0) {
2464 memcpy(Mcd1Data + a1 * 128, pa2, 128);
2465 SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128);
2466 } else {
2467 memcpy(Mcd2Data + a1 * 128, pa2, 128);
2468 SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128);
2469 }
ef79bbde
P		 2470 }
2471
2472 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2473// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2474
2475 v0 = 1; pc0 = ra;
2476}
2477
2478void psxBios__card_read() { // 0x4f
02949f79 2479 void *pa2 = Ra2;
ef79bbde
P		 2480 int port;
2481
2482#ifdef PSXBIOS_LOG
2483 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]);
2484#endif
bd48ba5e 2485 /* Function also accepts sector 400h (a bug) */
2486 if (!(a1 <= 0x400))
2487 {
2488 /* Invalid sectors */
2489 v0 = 0; pc0 = ra;
2490 return;
2491 }
e9fda093 2492 card_active_chan = a0;
ef79bbde
P		 2493 port = a0 >> 4;
2494
02949f79 2495 if (pa2) {
2496 if (port == 0) {
2497 memcpy(pa2, Mcd1Data + a1 * 128, 128);
2498 } else {
2499 memcpy(pa2, Mcd2Data + a1 * 128, 128);
2500 }
ef79bbde
P		 2501 }
2502
2503 DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
2504// DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
2505
2506 v0 = 1; pc0 = ra;
2507}
2508
2509void psxBios__new_card() { // 0x50
2510#ifdef PSXBIOS_LOG
2511 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]);
2512#endif
2513
2514 pc0 = ra;
2515}
2516
002b2f7d 2517/* According to a user, this allows Final Fantasy Tactics to save/load properly */
2518void psxBios__get_error(void) // 55
2519{
2520 v0 = 0;
2521 pc0 = ra;
2522}
2523
ef79bbde
P		 2524void psxBios_Krom2RawAdd() { // 0x51
2525 int i = 0;
2526
2527 const u32 table_8140[][2] = {
2528 {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8},
2529 {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a},
2530 {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c},
2531 {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266},
2532 {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e},
2533 {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a},
2534 {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c},
2535 {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca},
2536 {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8},
2537 {0xffff, 0}
2538 };
2539
2540 const u32 table_889f[][2] = {
2541 {0x889f, 0x3d68}, {0x8900, 0x40ec}, {0x897f, 0x4fb0}, {0x8a00, 0x56f4},
2542 {0x8a7f, 0x65b8}, {0x8b00, 0x6cfc}, {0x8b7f, 0x7bc0}, {0x8c00, 0x8304},
2543 {0x8c7f, 0x91c8}, {0x8d00, 0x990c}, {0x8d7f, 0xa7d0}, {0x8e00, 0xaf14},
2544 {0x8e7f, 0xbdd8}, {0x8f00, 0xc51c}, {0x8f7f, 0xd3e0}, {0x9000, 0xdb24},
2545 {0x907f, 0xe9e8}, {0x9100, 0xf12c}, {0x917f, 0xfff0}, {0x9200, 0x10734},
2546 {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344},
2547 {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54},
2548 {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64},
2549 {0xffff, 0}
2550 };
2551
2552 if (a0 >= 0x8140 && a0 <= 0x84be) {
2553 while (table_8140[i][0] <= a0) i++;
2554 a0 -= table_8140[i - 1][0];
2555 v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]);
2556 } else if (a0 >= 0x889f && a0 <= 0x9872) {
2557 while (table_889f[i][0] <= a0) i++;
2558 a0 -= table_889f[i - 1][0];
2559 v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]);
2560 } else {
2561 v0 = 0xffffffff;
2562 }
2563
2564 pc0 = ra;
2565}
2566
2567void psxBios_GetC0Table() { // 56
2568#ifdef PSXBIOS_LOG
2569 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]);
2570#endif
2571
2572 v0 = 0x674; pc0 = ra;
2573}
2574
2575void psxBios_GetB0Table() { // 57
2576#ifdef PSXBIOS_LOG
2577 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]);
2578#endif
2579
2580 v0 = 0x874; pc0 = ra;
2581}
2582
e9fda093 2583void psxBios__card_chan() { // 0x58
2584#ifdef PSXBIOS_LOG
2585 PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]);
2586#endif
2587
2588 v0 = card_active_chan;
2589 pc0 = ra;
2590}
2591
ef79bbde
P		 2592void psxBios_ChangeClearPad() { // 5b
2593#ifdef PSXBIOS_LOG
2594 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0);
2595#endif
2596
2597 pc0 = ra;
2598}
2599
21af3ff6 2600void psxBios__card_status() { // 5c
2601#ifdef PSXBIOS_LOG
2602 PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5c], a0);
2603#endif
2604
2605 v0 = 1;
2606 pc0 = ra;
2607}
2608
ef79bbde
P		 2609/* System calls C0 */
2610
2611/*
2612 * int SysEnqIntRP(int index , long *queue);
2613 */
2614
2615void psxBios_SysEnqIntRP() { // 02
2616#ifdef PSXBIOS_LOG
2617 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x02] ,a0);
2618#endif
2619
2620 SysIntRP[a0] = a1;
2621
2622 v0 = 0; pc0 = ra;
2623}
2624
2625/*
2626 * int SysDeqIntRP(int index , long *queue);
2627 */
2628
2629void psxBios_SysDeqIntRP() { // 03
2630#ifdef PSXBIOS_LOG
2631 PSXBIOS_LOG("psxBios_%s: %x\n", biosC0n[0x03], a0);
2632#endif
2633
2634 SysIntRP[a0] = 0;
2635
2636 v0 = 0; pc0 = ra;
2637}
2638
2639void psxBios_ChangeClearRCnt() { // 0a
2640 u32 *ptr;
2641
2642#ifdef PSXBIOS_LOG
2643 PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1);
2644#endif
2645
2646 ptr = (u32*)PSXM((a0 << 2) + 0x8600);
2647 v0 = *ptr;
2648 *ptr = a1;
2649
2650// psxRegs.CP0.n.Status|= 0x404;
2651 pc0 = ra;
2652}
2653
2654void psxBios_dummy() {
2655#ifdef PSXBIOS_LOG
2656 PSXBIOS_LOG("unk %x call: %x\n", pc0 & 0x1fffff, t1);
2657#endif
2658 pc0 = ra;
2659}
2660
2661void (*biosA0[256])();
2662void (*biosB0[256])();
2663void (*biosC0[256])();
2664
2665#include "sjisfont.h"
2666
2667void psxBiosInit() {
2668 u32 base, size;
2669 u32 *ptr;
2670 int i;
2671 uLongf len;
2672
2673 for(i = 0; i < 256; i++) {
2674 biosA0[i] = NULL;
2675 biosB0[i] = NULL;
2676 biosC0[i] = NULL;
2677 }
2678 biosA0[0x3e] = psxBios_puts;
2679 biosA0[0x3f] = psxBios_printf;
2680
2681 biosB0[0x3d] = psxBios_putchar;
2682 biosB0[0x3f] = psxBios_puts;
2683
2684 if (!Config.HLE) return;
2685
2686 for(i = 0; i < 256; i++) {
2687 if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy;
2688 if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy;
2689 if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy;
2690 }
2691
2692 biosA0[0x00] = psxBios_open;
2693 biosA0[0x01] = psxBios_lseek;
2694 biosA0[0x02] = psxBios_read;
2695 biosA0[0x03] = psxBios_write;
2696 biosA0[0x04] = psxBios_close;
2697 //biosA0[0x05] = psxBios_ioctl;
2698 //biosA0[0x06] = psxBios_exit;
2699 //biosA0[0x07] = psxBios_sys_a0_07;
324cec89 2700 biosA0[0x08] = psxBios_getc;
2701 biosA0[0x09] = psxBios_putc;
ba11675c 2702 biosA0[0x0a] = psxBios_todigit;
ef79bbde
P		 2703 //biosA0[0x0b] = psxBios_atof;
2704 //biosA0[0x0c] = psxBios_strtoul;
2705 //biosA0[0x0d] = psxBios_strtol;
2706 biosA0[0x0e] = psxBios_abs;
2707 biosA0[0x0f] = psxBios_labs;
2708 biosA0[0x10] = psxBios_atoi;
2709 biosA0[0x11] = psxBios_atol;
2710 //biosA0[0x12] = psxBios_atob;
2711 biosA0[0x13] = psxBios_setjmp;
2712 biosA0[0x14] = psxBios_longjmp;
2713 biosA0[0x15] = psxBios_strcat;
2714 biosA0[0x16] = psxBios_strncat;
2715 biosA0[0x17] = psxBios_strcmp;
2716 biosA0[0x18] = psxBios_strncmp;
2717 biosA0[0x19] = psxBios_strcpy;
2718 biosA0[0x1a] = psxBios_strncpy;
2719 biosA0[0x1b] = psxBios_strlen;
2720 biosA0[0x1c] = psxBios_index;
2721 biosA0[0x1d] = psxBios_rindex;
2722 biosA0[0x1e] = psxBios_strchr;
2723 biosA0[0x1f] = psxBios_strrchr;
2724 biosA0[0x20] = psxBios_strpbrk;
2725 biosA0[0x21] = psxBios_strspn;
2726 biosA0[0x22] = psxBios_strcspn;
2727 biosA0[0x23] = psxBios_strtok;
2728 biosA0[0x24] = psxBios_strstr;
2729 biosA0[0x25] = psxBios_toupper;
2730 biosA0[0x26] = psxBios_tolower;
2731 biosA0[0x27] = psxBios_bcopy;
2732 biosA0[0x28] = psxBios_bzero;
2733 biosA0[0x29] = psxBios_bcmp;
2734 biosA0[0x2a] = psxBios_memcpy;
2735 biosA0[0x2b] = psxBios_memset;
2736 biosA0[0x2c] = psxBios_memmove;
2737 biosA0[0x2d] = psxBios_memcmp;
2738 biosA0[0x2e] = psxBios_memchr;
2739 biosA0[0x2f] = psxBios_rand;
2740 biosA0[0x30] = psxBios_srand;
2741 biosA0[0x31] = psxBios_qsort;
2742 //biosA0[0x32] = psxBios_strtod;
2743 biosA0[0x33] = psxBios_malloc;
2744 biosA0[0x34] = psxBios_free;
2745 //biosA0[0x35] = psxBios_lsearch;
2746 //biosA0[0x36] = psxBios_bsearch;
2747 biosA0[0x37] = psxBios_calloc;
2748 biosA0[0x38] = psxBios_realloc;
2749 biosA0[0x39] = psxBios_InitHeap;
2750 //biosA0[0x3a] = psxBios__exit;
2751 biosA0[0x3b] = psxBios_getchar;
2752 biosA0[0x3c] = psxBios_putchar;
2753 //biosA0[0x3d] = psxBios_gets;
2754 //biosA0[0x40] = psxBios_sys_a0_40;
2755 //biosA0[0x41] = psxBios_LoadTest;
2756 biosA0[0x42] = psxBios_Load;
2757 biosA0[0x43] = psxBios_Exec;
2758 biosA0[0x44] = psxBios_FlushCache;
2759 //biosA0[0x45] = psxBios_InstallInterruptHandler;
2760 biosA0[0x46] = psxBios_GPU_dw;
2761 biosA0[0x47] = psxBios_mem2vram;
2762 biosA0[0x48] = psxBios_SendGPU;
2763 biosA0[0x49] = psxBios_GPU_cw;
2764 biosA0[0x4a] = psxBios_GPU_cwb;
2765 biosA0[0x4b] = psxBios_GPU_SendPackets;
2766 biosA0[0x4c] = psxBios_sys_a0_4c;
2767 biosA0[0x4d] = psxBios_GPU_GetGPUStatus;
2768 //biosA0[0x4e] = psxBios_GPU_sync;
2769 //biosA0[0x4f] = psxBios_sys_a0_4f;
2770 //biosA0[0x50] = psxBios_sys_a0_50;
2771 biosA0[0x51] = psxBios_LoadExec;
2772 //biosA0[0x52] = psxBios_GetSysSp;
2773 //biosA0[0x53] = psxBios_sys_a0_53;
2774 //biosA0[0x54] = psxBios__96_init_a54;
2775 //biosA0[0x55] = psxBios__bu_init_a55;
2776 //biosA0[0x56] = psxBios__96_remove_a56;
2777 //biosA0[0x57] = psxBios_sys_a0_57;
2778 //biosA0[0x58] = psxBios_sys_a0_58;
2779 //biosA0[0x59] = psxBios_sys_a0_59;
2780 //biosA0[0x5a] = psxBios_sys_a0_5a;
2781 //biosA0[0x5b] = psxBios_dev_tty_init;
2782 //biosA0[0x5c] = psxBios_dev_tty_open;
2783 //biosA0[0x5d] = psxBios_sys_a0_5d;
2784 //biosA0[0x5e] = psxBios_dev_tty_ioctl;
2785 //biosA0[0x5f] = psxBios_dev_cd_open;
2786 //biosA0[0x60] = psxBios_dev_cd_read;
2787 //biosA0[0x61] = psxBios_dev_cd_close;
2788 //biosA0[0x62] = psxBios_dev_cd_firstfile;
2789 //biosA0[0x63] = psxBios_dev_cd_nextfile;
2790 //biosA0[0x64] = psxBios_dev_cd_chdir;
2791 //biosA0[0x65] = psxBios_dev_card_open;
2792 //biosA0[0x66] = psxBios_dev_card_read;
2793 //biosA0[0x67] = psxBios_dev_card_write;
2794 //biosA0[0x68] = psxBios_dev_card_close;
2795 //biosA0[0x69] = psxBios_dev_card_firstfile;
2796 //biosA0[0x6a] = psxBios_dev_card_nextfile;
2797 //biosA0[0x6b] = psxBios_dev_card_erase;
2798 //biosA0[0x6c] = psxBios_dev_card_undelete;
2799 //biosA0[0x6d] = psxBios_dev_card_format;
2800 //biosA0[0x6e] = psxBios_dev_card_rename;
2801 //biosA0[0x6f] = psxBios_dev_card_6f;
2802 biosA0[0x70] = psxBios__bu_init;
2803 biosA0[0x71] = psxBios__96_init;
2804 biosA0[0x72] = psxBios__96_remove;
2805 //biosA0[0x73] = psxBios_sys_a0_73;
2806 //biosA0[0x74] = psxBios_sys_a0_74;
2807 //biosA0[0x75] = psxBios_sys_a0_75;
2808 //biosA0[0x76] = psxBios_sys_a0_76;
2809 //biosA0[0x77] = psxBios_sys_a0_77;
2810 //biosA0[0x78] = psxBios__96_CdSeekL;
2811 //biosA0[0x79] = psxBios_sys_a0_79;
2812 //biosA0[0x7a] = psxBios_sys_a0_7a;
2813 //biosA0[0x7b] = psxBios_sys_a0_7b;
2814 //biosA0[0x7c] = psxBios__96_CdGetStatus;
2815 //biosA0[0x7d] = psxBios_sys_a0_7d;
2816 //biosA0[0x7e] = psxBios__96_CdRead;
2817 //biosA0[0x7f] = psxBios_sys_a0_7f;
2818 //biosA0[0x80] = psxBios_sys_a0_80;
2819 //biosA0[0x81] = psxBios_sys_a0_81;
2820 //biosA0[0x82] = psxBios_sys_a0_82;
2821 //biosA0[0x83] = psxBios_sys_a0_83;
2822 //biosA0[0x84] = psxBios_sys_a0_84;
2823 //biosA0[0x85] = psxBios__96_CdStop;
2824 //biosA0[0x86] = psxBios_sys_a0_86;
2825 //biosA0[0x87] = psxBios_sys_a0_87;
2826 //biosA0[0x88] = psxBios_sys_a0_88;
2827 //biosA0[0x89] = psxBios_sys_a0_89;
2828 //biosA0[0x8a] = psxBios_sys_a0_8a;
2829 //biosA0[0x8b] = psxBios_sys_a0_8b;
2830 //biosA0[0x8c] = psxBios_sys_a0_8c;
2831 //biosA0[0x8d] = psxBios_sys_a0_8d;
2832 //biosA0[0x8e] = psxBios_sys_a0_8e;
2833 //biosA0[0x8f] = psxBios_sys_a0_8f;
2834 //biosA0[0x90] = psxBios_sys_a0_90;
2835 //biosA0[0x91] = psxBios_sys_a0_91;
2836 //biosA0[0x92] = psxBios_sys_a0_92;
2837 //biosA0[0x93] = psxBios_sys_a0_93;
2838 //biosA0[0x94] = psxBios_sys_a0_94;
2839 //biosA0[0x95] = psxBios_sys_a0_95;
2840 //biosA0[0x96] = psxBios_AddCDROMDevice;
2841 //biosA0[0x97] = psxBios_AddMemCardDevide;
2842 //biosA0[0x98] = psxBios_DisableKernelIORedirection;
2843 //biosA0[0x99] = psxBios_EnableKernelIORedirection;
2844 //biosA0[0x9a] = psxBios_sys_a0_9a;
2845 //biosA0[0x9b] = psxBios_sys_a0_9b;
2846 //biosA0[0x9c] = psxBios_SetConf;
2847 //biosA0[0x9d] = psxBios_GetConf;
2848 //biosA0[0x9e] = psxBios_sys_a0_9e;
2849 biosA0[0x9f] = psxBios_SetMem;
2850 //biosA0[0xa0] = psxBios__boot;
2851 //biosA0[0xa1] = psxBios_SystemError;
2852 //biosA0[0xa2] = psxBios_EnqueueCdIntr;
2853 //biosA0[0xa3] = psxBios_DequeueCdIntr;
2854 //biosA0[0xa4] = psxBios_sys_a0_a4;
2855 //biosA0[0xa5] = psxBios_ReadSector;
2856 //biosA0[0xa6] = psxBios_get_cd_status;
2857 //biosA0[0xa7] = psxBios_bufs_cb_0;
2858 //biosA0[0xa8] = psxBios_bufs_cb_1;
2859 //biosA0[0xa9] = psxBios_bufs_cb_2;
2860 //biosA0[0xaa] = psxBios_bufs_cb_3;
2861 biosA0[0xab] = psxBios__card_info;
2862 biosA0[0xac] = psxBios__card_load;
2863 //biosA0[0axd] = psxBios__card_auto;
2864 //biosA0[0xae] = psxBios_bufs_cd_4;
2865 //biosA0[0xaf] = psxBios_sys_a0_af;
2866 //biosA0[0xb0] = psxBios_sys_a0_b0;
2867 //biosA0[0xb1] = psxBios_sys_a0_b1;
2868 //biosA0[0xb2] = psxBios_do_a_long_jmp
2869 //biosA0[0xb3] = psxBios_sys_a0_b3;
2870 //biosA0[0xb4] = psxBios_sub_function;
2871//*******************B0 CALLS****************************
2872 //biosB0[0x00] = psxBios_SysMalloc;
2873 //biosB0[0x01] = psxBios_sys_b0_01;
2874 biosB0[0x02] = psxBios_SetRCnt;
2875 biosB0[0x03] = psxBios_GetRCnt;
2876 biosB0[0x04] = psxBios_StartRCnt;
2877 biosB0[0x05] = psxBios_StopRCnt;
2878 biosB0[0x06] = psxBios_ResetRCnt;
2879 biosB0[0x07] = psxBios_DeliverEvent;
2880 biosB0[0x08] = psxBios_OpenEvent;
2881 biosB0[0x09] = psxBios_CloseEvent;
2882 biosB0[0x0a] = psxBios_WaitEvent;
2883 biosB0[0x0b] = psxBios_TestEvent;
2884 biosB0[0x0c] = psxBios_EnableEvent;
2885 biosB0[0x0d] = psxBios_DisableEvent;
2886 biosB0[0x0e] = psxBios_OpenTh;
2887 biosB0[0x0f] = psxBios_CloseTh;
2888 biosB0[0x10] = psxBios_ChangeTh;
2889 //biosB0[0x11] = psxBios_psxBios_b0_11;
2890 biosB0[0x12] = psxBios_InitPAD;
2891 biosB0[0x13] = psxBios_StartPAD;
2892 biosB0[0x14] = psxBios_StopPAD;
2893 biosB0[0x15] = psxBios_PAD_init;
2894 biosB0[0x16] = psxBios_PAD_dr;
2895 biosB0[0x17] = psxBios_ReturnFromException;
2896 biosB0[0x18] = psxBios_ResetEntryInt;
2897 biosB0[0x19] = psxBios_HookEntryInt;
2898 //biosB0[0x1a] = psxBios_sys_b0_1a;
2899 //biosB0[0x1b] = psxBios_sys_b0_1b;
2900 //biosB0[0x1c] = psxBios_sys_b0_1c;
2901 //biosB0[0x1d] = psxBios_sys_b0_1d;
2902 //biosB0[0x1e] = psxBios_sys_b0_1e;
2903 //biosB0[0x1f] = psxBios_sys_b0_1f;
2904 biosB0[0x20] = psxBios_UnDeliverEvent;
2905 //biosB0[0x21] = psxBios_sys_b0_21;
2906 //biosB0[0x22] = psxBios_sys_b0_22;
2907 //biosB0[0x23] = psxBios_sys_b0_23;
2908 //biosB0[0x24] = psxBios_sys_b0_24;
2909 //biosB0[0x25] = psxBios_sys_b0_25;
2910 //biosB0[0x26] = psxBios_sys_b0_26;
2911 //biosB0[0x27] = psxBios_sys_b0_27;
2912 //biosB0[0x28] = psxBios_sys_b0_28;
2913 //biosB0[0x29] = psxBios_sys_b0_29;
2914 //biosB0[0x2a] = psxBios_sys_b0_2a;
2915 //biosB0[0x2b] = psxBios_sys_b0_2b;
2916 //biosB0[0x2c] = psxBios_sys_b0_2c;
2917 //biosB0[0x2d] = psxBios_sys_b0_2d;
2918 //biosB0[0x2e] = psxBios_sys_b0_2e;
2919 //biosB0[0x2f] = psxBios_sys_b0_2f;
2920 //biosB0[0x30] = psxBios_sys_b0_30;
2921 //biosB0[0x31] = psxBios_sys_b0_31;
2922 biosB0[0x32] = psxBios_open;
2923 biosB0[0x33] = psxBios_lseek;
2924 biosB0[0x34] = psxBios_read;
2925 biosB0[0x35] = psxBios_write;
2926 biosB0[0x36] = psxBios_close;
2927 //biosB0[0x37] = psxBios_ioctl;
2928 //biosB0[0x38] = psxBios_exit;
2929 //biosB0[0x39] = psxBios_sys_b0_39;
2930 //biosB0[0x3a] = psxBios_getc;
2931 //biosB0[0x3b] = psxBios_putc;
2932 biosB0[0x3c] = psxBios_getchar;
2933 //biosB0[0x3e] = psxBios_gets;
2934 //biosB0[0x40] = psxBios_cd;
e7e1f572 2935 biosB0[0x41] = psxBios_format;
ef79bbde
P		 2936 biosB0[0x42] = psxBios_firstfile;
2937 biosB0[0x43] = psxBios_nextfile;
2938 biosB0[0x44] = psxBios_rename;
2939 biosB0[0x45] = psxBios_delete;
2940 //biosB0[0x46] = psxBios_undelete;
2941 //biosB0[0x47] = psxBios_AddDevice;
2942 //biosB0[0x48] = psxBios_RemoteDevice;
2943 //biosB0[0x49] = psxBios_PrintInstalledDevices;
2944 biosB0[0x4a] = psxBios_InitCARD;
2945 biosB0[0x4b] = psxBios_StartCARD;
2946 biosB0[0x4c] = psxBios_StopCARD;
2947 //biosB0[0x4d] = psxBios_sys_b0_4d;
2948 biosB0[0x4e] = psxBios__card_write;
2949 biosB0[0x4f] = psxBios__card_read;
2950 biosB0[0x50] = psxBios__new_card;
2951 biosB0[0x51] = psxBios_Krom2RawAdd;
2952 //biosB0[0x52] = psxBios_sys_b0_52;
2953 //biosB0[0x53] = psxBios_sys_b0_53;
2954 //biosB0[0x54] = psxBios__get_errno;
002b2f7d 2955 biosB0[0x55] = psxBios__get_error;
ef79bbde
P		 2956 biosB0[0x56] = psxBios_GetC0Table;
2957 biosB0[0x57] = psxBios_GetB0Table;
e9fda093 2958 biosB0[0x58] = psxBios__card_chan;
ef79bbde
P		 2959 //biosB0[0x59] = psxBios_sys_b0_59;
2960 //biosB0[0x5a] = psxBios_sys_b0_5a;
2961 biosB0[0x5b] = psxBios_ChangeClearPad;
21af3ff6 2962 biosB0[0x5c] = psxBios__card_status;
ef79bbde
P		 2963 //biosB0[0x5d] = psxBios__card_wait;
2964//*******************C0 CALLS****************************
2965 //biosC0[0x00] = psxBios_InitRCnt;
2966 //biosC0[0x01] = psxBios_InitException;
2967 biosC0[0x02] = psxBios_SysEnqIntRP;
2968 biosC0[0x03] = psxBios_SysDeqIntRP;
2969 //biosC0[0x04] = psxBios_get_free_EvCB_slot;
2970 //biosC0[0x05] = psxBios_get_free_TCB_slot;
2971 //biosC0[0x06] = psxBios_ExceptionHandler;
2972 //biosC0[0x07] = psxBios_InstallExeptionHandler;
2973 //biosC0[0x08] = psxBios_SysInitMemory;
2974 //biosC0[0x09] = psxBios_SysInitKMem;
2975 biosC0[0x0a] = psxBios_ChangeClearRCnt;
2976 //biosC0[0x0b] = psxBios_SystemError;
2977 //biosC0[0x0c] = psxBios_InitDefInt;
2978 //biosC0[0x0d] = psxBios_sys_c0_0d;
2979 //biosC0[0x0e] = psxBios_sys_c0_0e;
2980 //biosC0[0x0f] = psxBios_sys_c0_0f;
2981 //biosC0[0x10] = psxBios_sys_c0_10;
2982 //biosC0[0x11] = psxBios_sys_c0_11;
2983 //biosC0[0x12] = psxBios_InstallDevices;
2984 //biosC0[0x13] = psxBios_FlushStfInOutPut;
2985 //biosC0[0x14] = psxBios_sys_c0_14;
2986 //biosC0[0x15] = psxBios__cdevinput;
2987 //biosC0[0x16] = psxBios__cdevscan;
2988 //biosC0[0x17] = psxBios__circgetc;
2989 //biosC0[0x18] = psxBios__circputc;
2990 //biosC0[0x19] = psxBios_ioabort;
2991 //biosC0[0x1a] = psxBios_sys_c0_1a
2992 //biosC0[0x1b] = psxBios_KernelRedirect;
2993 //biosC0[0x1c] = psxBios_PatchAOTable;
2994//************** THE END ***************************************
2995/**/
2996 base = 0x1000;
2997 size = sizeof(EvCB) * 32;
2998 Event = (void *)&psxR[base]; base += size * 6;
2999 memset(Event, 0, size * 6);
3000 HwEV = Event;
3001 EvEV = Event + 32;
3002 RcEV = Event + 32 * 2;
3003 UeEV = Event + 32 * 3;
3004 SwEV = Event + 32 * 4;
3005 ThEV = Event + 32 * 5;
3006
3007 ptr = (u32 *)&psxM[0x0874]; // b0 table
3008 ptr[0] = SWAPu32(0x4c54 - 0x884);
3009
3010 ptr = (u32 *)&psxM[0x0674]; // c0 table
3011 ptr[6] = SWAPu32(0xc80);
3012
3013 memset(SysIntRP, 0, sizeof(SysIntRP));
3014 memset(Thread, 0, sizeof(Thread));
3015 Thread[0].status = 2; // main thread
3016
832f0c3c 3017 pad_stopped = 1;
c62b43c9 3018 jmp_int = NULL;
3019 pad_buf = NULL;
3020 pad_buf1 = NULL;
3021 pad_buf2 = NULL;
3022 pad_buf1len = pad_buf2len = 0;
3023 heap_addr = NULL;
3024 heap_end = NULL;
26b964b5 3025 heap_size = 0;
c62b43c9 3026 CardState = -1;
3027 CurThread = 0;
3028 memset(FDesc, 0, sizeof(FDesc));
832f0c3c 3029 card_active_chan = 0;
c62b43c9 3030
ef79bbde
P		 3031 psxMu32ref(0x0150) = SWAPu32(0x160);
3032 psxMu32ref(0x0154) = SWAPu32(0x320);
3033 psxMu32ref(0x0160) = SWAPu32(0x248);
3034 strcpy((char *)&psxM[0x248], "bu");
3035/* psxMu32ref(0x0ca8) = SWAPu32(0x1f410004);
3036 psxMu32ref(0x0cf0) = SWAPu32(0x3c020000);
3037 psxMu32ref(0x0cf4) = SWAPu32(0x2442641c);
3038 psxMu32ref(0x09e0) = SWAPu32(0x43d0);
3039 psxMu32ref(0x4d98) = SWAPu32(0x946f000a);
3040*/
3041 // opcode HLE
3042 psxRu32ref(0x0000) = SWAPu32((0x3b << 26) | 4);
3043 psxMu32ref(0x0000) = SWAPu32((0x3b << 26) | 0);
3044 psxMu32ref(0x00a0) = SWAPu32((0x3b << 26) | 1);
3045 psxMu32ref(0x00b0) = SWAPu32((0x3b << 26) | 2);
3046 psxMu32ref(0x00c0) = SWAPu32((0x3b << 26) | 3);
3047 psxMu32ref(0x4c54) = SWAPu32((0x3b << 26) | 0);
3048 psxMu32ref(0x8000) = SWAPu32((0x3b << 26) | 5);
3049 psxMu32ref(0x07a0) = SWAPu32((0x3b << 26) | 0);
3050 psxMu32ref(0x0884) = SWAPu32((0x3b << 26) | 0);
3051 psxMu32ref(0x0894) = SWAPu32((0x3b << 26) | 0);
3052
3053 // initial stack pointer for BIOS interrupt
3054 psxMu32ref(0x6c80) = SWAPu32(0x000085c8);
3055
3056 // initial RNG seed
3057 psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
3058
3059 // fonts
3060 len = 0x80000 - 0x66000;
3061 uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
3062 len = 0x80000 - 0x69d68;
3063 uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f));
3064
3065 // memory size 2 MB
3066 psxHu32ref(0x1060) = SWAPu32(0x00000b88);
3067
3068 hleSoftCall = FALSE;
3069}
3070
3071void psxBiosShutdown() {
3072}
3073
3074#define psxBios_PADpoll(pad) { \
3075 PAD##pad##_startPoll(pad); \
3076 pad_buf##pad[0] = 0; \
3077 pad_buf##pad[1] = PAD##pad##_poll(0x42); \
3078 if (!(pad_buf##pad[1] & 0x0f)) { \
3079 bufcount = 32; \
3080 } else { \
3081 bufcount = (pad_buf##pad[1] & 0x0f) * 2; \
3082 } \
3083 PAD##pad##_poll(0); \
3084 i = 2; \
3085 while (bufcount--) { \
3086 pad_buf##pad[i++] = PAD##pad##_poll(0); \
3087 } \
3088}
3089
3090void biosInterrupt() {
3091 int i, bufcount;
3092
3093// if (psxHu32(0x1070) & 0x1) { // Vsync
3094 if (pad_buf != NULL) {
3095 u32 *buf = (u32*)pad_buf;
3096
3097 if (!Config.UseNet) {
3098 PAD1_startPoll(1);
3099 if (PAD1_poll(0x42) == 0x23) {
3100 PAD1_poll(0);
3101 *buf = PAD1_poll(0) << 8;
3102 *buf |= PAD1_poll(0);
3103 PAD1_poll(0);
3104 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 6 : 0);
3105 *buf &= ~((PAD1_poll(0) > 0x20) ? 1 << 7 : 0);
3106 } else {
3107 PAD1_poll(0);
3108 *buf = PAD1_poll(0) << 8;
3109 *buf|= PAD1_poll(0);
3110 }
3111
3112 PAD2_startPoll(2);
3113 if (PAD2_poll(0x42) == 0x23) {
3114 PAD2_poll(0);
3115 *buf |= PAD2_poll(0) << 24;
3116 *buf |= PAD2_poll(0) << 16;
3117 PAD2_poll(0);
3118 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 22 : 0);
3119 *buf &= ~((PAD2_poll(0) > 0x20) ? 1 << 23 : 0);
3120 } else {
3121 PAD2_poll(0);
3122 *buf |= PAD2_poll(0) << 24;
3123 *buf |= PAD2_poll(0) << 16;
3124 }
3125 } else {
3126 u16 data;
3127
3128 PAD1_startPoll(1);
3129 PAD1_poll(0x42);
3130 PAD1_poll(0);
3131 data = PAD1_poll(0) << 8;
3132 data |= PAD1_poll(0);
3133
3134 if (NET_sendPadData(&data, 2) == -1)
3135 netError();
3136
3137 if (NET_recvPadData(&((u16*)buf)[0], 1) == -1)
3138 netError();
3139 if (NET_recvPadData(&((u16*)buf)[1], 2) == -1)
3140 netError();
3141 }
3142 }
3143 if (Config.UseNet && pad_buf1 != NULL && pad_buf2 != NULL) {
3144 psxBios_PADpoll(1);
3145
3146 if (NET_sendPadData(pad_buf1, i) == -1)
3147 netError();
3148
3149 if (NET_recvPadData(pad_buf1, 1) == -1)
3150 netError();
3151 if (NET_recvPadData(pad_buf2, 2) == -1)
3152 netError();
3153 } else {
f25c285b 3154 if (!pad_stopped) {
3155 if (pad_buf1) {
3156 psxBios_PADpoll(1);
3157 }
ef79bbde 3158
f25c285b 3159 if (pad_buf2) {
3160 psxBios_PADpoll(2);
3161 }
ef79bbde
P		 3162 }
3163 }
3164
3165 if (psxHu32(0x1070) & 0x1) { // Vsync
3166 if (RcEV[3][1].status == EvStACTIVE) {
3167 softCall(RcEV[3][1].fhandler);
3168// hwWrite32(0x1f801070, ~(1));
3169 }
3170 }
3171
3172 if (psxHu32(0x1070) & 0x70) { // Rcnt 0,1,2
3173 int i;
3174
3175 for (i = 0; i < 3; i++) {
3176 if (psxHu32(0x1070) & (1 << (i + 4))) {
3177 if (RcEV[i][1].status == EvStACTIVE) {
3178 softCall(RcEV[i][1].fhandler);
3179 }
3180 psxHwWrite32(0x1f801070, ~(1 << (i + 4)));
3181 }
3182 }
3183 }
3184}
3185
3186void psxBiosException() {
3187 int i;
3188
3189 switch (psxRegs.CP0.n.Cause & 0x3c) {
3190 case 0x00: // Interrupt
3191#ifdef PSXCPU_LOG
3192// PSXCPU_LOG("interrupt\n");
3193#endif
3194 SaveRegs();
3195
3196 sp = psxMu32(0x6c80); // create new stack for interrupt handlers
3197
3198 biosInterrupt();
3199
3200 for (i = 0; i < 8; i++) {
3201 if (SysIntRP[i]) {
3202 u32 *queue = (u32 *)PSXM(SysIntRP[i]);
3203
3204 s0 = queue[2];
3205 softCall(queue[1]);
3206 }
3207 }
3208
3209 if (jmp_int != NULL) {
3210 int i;
3211
3212 psxHwWrite32(0x1f801070, 0xffffffff);
3213
3214 ra = jmp_int[0];
3215 sp = jmp_int[1];
3216 fp = jmp_int[2];
3217 for (i = 0; i < 8; i++) // s0-s7
3218 psxRegs.GPR.r[16 + i] = jmp_int[3 + i];
3219 gp = jmp_int[11];
3220
3221 v0 = 1;
3222 pc0 = ra;
3223 return;
3224 }
3225 psxHwWrite16(0x1f801070, 0);
3226 break;
3227
3228 case 0x20: // Syscall
3229#ifdef PSXCPU_LOG
3230 PSXCPU_LOG("syscall exp %x\n", a0);
3231#endif
3232 switch (a0) {
3233 case 1: // EnterCritical - disable irq's
79dad1b3 3234 /* Fixes Medievil 2 not loading up new game, Digimon World not booting up and possibly others */
3235 v0 = (psxRegs.CP0.n.Status & 0x404) == 0x404;
3236 psxRegs.CP0.n.Status &= ~0x404;
ef79bbde
P		 3237 break;
3238
3239 case 2: // ExitCritical - enable irq's
3240 psxRegs.CP0.n.Status |= 0x404;
3241 break;
a946d159 3242 /* Normally this should cover SYS(00h, SYS(04h but they don't do anything relevant so... */
3243 default:
3244 break;
ef79bbde
P		 3245 }
3246 pc0 = psxRegs.CP0.n.EPC + 4;
3247
3248 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3249 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3250 return;
3251
3252 default:
3253#ifdef PSXCPU_LOG
3254 PSXCPU_LOG("unknown bios exception!\n");
3255#endif
3256 break;
3257 }
3258
3259 pc0 = psxRegs.CP0.n.EPC;
3260 if (psxRegs.CP0.n.Cause & 0x80000000) pc0+=4;
3261
3262 psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status & 0xfffffff0) |
3263 ((psxRegs.CP0.n.Status & 0x3c) >> 2);
3264}
3265
3266#define bfreeze(ptr, size) { \
3267 if (Mode == 1) memcpy(&psxR[base], ptr, size); \
3268 if (Mode == 0) memcpy(ptr, &psxR[base], size); \
3269 base += size; \
3270}
3271
3272#define bfreezes(ptr) bfreeze(ptr, sizeof(ptr))
3273#define bfreezel(ptr) bfreeze(ptr, sizeof(*ptr))
3274
3275#define bfreezepsxMptr(ptr, type) { \
3276 if (Mode == 1) { \
3277 if (ptr) psxRu32ref(base) = SWAPu32((s8 *)(ptr) - psxM); \
3278 else psxRu32ref(base) = 0; \
3279 } else { \
3280 if (psxRu32(base) != 0) ptr = (type *)(psxM + psxRu32(base)); \
3281 else (ptr) = NULL; \
3282 } \
3283 base += sizeof(u32); \
3284}
3285
3286void psxBiosFreeze(int Mode) {
3287 u32 base = 0x40000;
3288
f25c285b 3289 pad_stopped = 0;
ef79bbde
P		 3290 bfreezepsxMptr(jmp_int, u32);
3291 bfreezepsxMptr(pad_buf, int);
3292 bfreezepsxMptr(pad_buf1, char);
3293 bfreezepsxMptr(pad_buf2, char);
3294 bfreezepsxMptr(heap_addr, u32);
3295 bfreezel(&pad_buf1len);
3296 bfreezel(&pad_buf2len);
3297 bfreezes(regs);
3298 bfreezes(SysIntRP);
3299 bfreezel(&CardState);
3300 bfreezes(Thread);
3301 bfreezel(&CurThread);
3302 bfreezes(FDesc);
e9fda093 3303 bfreezel(&card_active_chan);
ef79bbde 3304}
ARM optimized PCSX fork