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ef79bbde | 1 | /*************************************************************************** |
8254b5a7 | 2 | * Copyright (C) 2019 Ryan Schultz, PCSX-df Team, PCSX team, gameblabla, * |
8ec1e4de | 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 | ||
8ec1e4de | 21 | /* Gameblabla 2018-2019 : |
8254b5a7 | 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" |
5bf56268 | 36 | #include "sio.h" |
9415f066 | 37 | #include "psxhle.h" |
2bbcfe6b | 38 | #include "psxinterpreter.h" |
496d88d4 | 39 | #include <zlib.h> |
ef79bbde | 40 | |
630b122b | 41 | #if (defined(__GNUC__) && __GNUC__ >= 5) || defined(__clang__) |
42 | #pragma GCC diagnostic ignored "-Wpointer-sign" | |
43 | #endif | |
44 | ||
2bbcfe6b | 45 | #ifndef PSXBIOS_LOG |
46 | //#define PSXBIOS_LOG printf | |
47 | #define PSXBIOS_LOG(...) | |
48 | #endif | |
452b85f9 | 49 | |
ef79bbde P |
50 | char *biosA0n[256] = { |
51 | // 0x00 | |
52 | "open", "lseek", "read", "write", | |
53 | "close", "ioctl", "exit", "sys_a0_07", | |
54 | "getc", "putc", "todigit", "atof", | |
55 | "strtoul", "strtol", "abs", "labs", | |
56 | // 0x10 | |
57 | "atoi", "atol", "atob", "setjmp", | |
58 | "longjmp", "strcat", "strncat", "strcmp", | |
59 | "strncmp", "strcpy", "strncpy", "strlen", | |
60 | "index", "rindex", "strchr", "strrchr", | |
61 | // 0x20 | |
62 | "strpbrk", "strspn", "strcspn", "strtok", | |
63 | "strstr", "toupper", "tolower", "bcopy", | |
64 | "bzero", "bcmp", "memcpy", "memset", | |
65 | "memmove", "memcmp", "memchr", "rand", | |
66 | // 0x30 | |
67 | "srand", "qsort", "strtod", "malloc", | |
68 | "free", "lsearch", "bsearch", "calloc", | |
69 | "realloc", "InitHeap", "_exit", "getchar", | |
70 | "putchar", "gets", "puts", "printf", | |
71 | // 0x40 | |
2bbcfe6b | 72 | "SystemErrorUnresolvedException", "LoadTest", "Load", "Exec", |
ef79bbde | 73 | "FlushCache", "InstallInterruptHandler", "GPU_dw", "mem2vram", |
2bbcfe6b | 74 | "SendGPUStatus", "GPU_cw", "GPU_cwb", "SendPackets", |
ef79bbde P |
75 | "sys_a0_4c", "GetGPUStatus", "GPU_sync", "sys_a0_4f", |
76 | // 0x50 | |
77 | "sys_a0_50", "LoadExec", "GetSysSp", "sys_a0_53", | |
78 | "_96_init()", "_bu_init()", "_96_remove()", "sys_a0_57", | |
79 | "sys_a0_58", "sys_a0_59", "sys_a0_5a", "dev_tty_init", | |
80 | "dev_tty_open", "sys_a0_5d", "dev_tty_ioctl","dev_cd_open", | |
81 | // 0x60 | |
82 | "dev_cd_read", "dev_cd_close", "dev_cd_firstfile", "dev_cd_nextfile", | |
83 | "dev_cd_chdir", "dev_card_open", "dev_card_read", "dev_card_write", | |
84 | "dev_card_close", "dev_card_firstfile", "dev_card_nextfile","dev_card_erase", | |
85 | "dev_card_undelete","dev_card_format", "dev_card_rename", "dev_card_6f", | |
86 | // 0x70 | |
9415f066 | 87 | "_bu_init", "_96_init", "CdRemove", "sys_a0_73", |
ef79bbde P |
88 | "sys_a0_74", "sys_a0_75", "sys_a0_76", "sys_a0_77", |
89 | "_96_CdSeekL", "sys_a0_79", "sys_a0_7a", "sys_a0_7b", | |
90 | "_96_CdGetStatus", "sys_a0_7d", "_96_CdRead", "sys_a0_7f", | |
91 | // 0x80 | |
92 | "sys_a0_80", "sys_a0_81", "sys_a0_82", "sys_a0_83", | |
93 | "sys_a0_84", "_96_CdStop", "sys_a0_86", "sys_a0_87", | |
94 | "sys_a0_88", "sys_a0_89", "sys_a0_8a", "sys_a0_8b", | |
95 | "sys_a0_8c", "sys_a0_8d", "sys_a0_8e", "sys_a0_8f", | |
96 | // 0x90 | |
97 | "sys_a0_90", "sys_a0_91", "sys_a0_92", "sys_a0_93", | |
98 | "sys_a0_94", "sys_a0_95", "AddCDROMDevice", "AddMemCardDevide", | |
99 | "DisableKernelIORedirection", "EnableKernelIORedirection", "sys_a0_9a", "sys_a0_9b", | |
100 | "SetConf", "GetConf", "sys_a0_9e", "SetMem", | |
101 | // 0xa0 | |
102 | "_boot", "SystemError", "EnqueueCdIntr", "DequeueCdIntr", | |
103 | "sys_a0_a4", "ReadSector", "get_cd_status", "bufs_cb_0", | |
104 | "bufs_cb_1", "bufs_cb_2", "bufs_cb_3", "_card_info", | |
105 | "_card_load", "_card_auto", "bufs_cd_4", "sys_a0_af", | |
106 | // 0xb0 | |
107 | "sys_a0_b0", "sys_a0_b1", "do_a_long_jmp", "sys_a0_b3", | |
2bbcfe6b | 108 | "GetSystemInfo", |
ef79bbde P |
109 | }; |
110 | ||
111 | char *biosB0n[256] = { | |
112 | // 0x00 | |
113 | "SysMalloc", "sys_b0_01", "sys_b0_02", "sys_b0_03", | |
114 | "sys_b0_04", "sys_b0_05", "sys_b0_06", "DeliverEvent", | |
115 | "OpenEvent", "CloseEvent", "WaitEvent", "TestEvent", | |
116 | "EnableEvent", "DisableEvent", "OpenTh", "CloseTh", | |
117 | // 0x10 | |
118 | "ChangeTh", "sys_b0_11", "InitPAD", "StartPAD", | |
119 | "StopPAD", "PAD_init", "PAD_dr", "ReturnFromExecption", | |
120 | "ResetEntryInt", "HookEntryInt", "sys_b0_1a", "sys_b0_1b", | |
121 | "sys_b0_1c", "sys_b0_1d", "sys_b0_1e", "sys_b0_1f", | |
122 | // 0x20 | |
123 | "UnDeliverEvent", "sys_b0_21", "sys_b0_22", "sys_b0_23", | |
124 | "sys_b0_24", "sys_b0_25", "sys_b0_26", "sys_b0_27", | |
125 | "sys_b0_28", "sys_b0_29", "sys_b0_2a", "sys_b0_2b", | |
126 | "sys_b0_2c", "sys_b0_2d", "sys_b0_2e", "sys_b0_2f", | |
127 | // 0x30 | |
128 | "sys_b0_30", "sys_b0_31", "open", "lseek", | |
129 | "read", "write", "close", "ioctl", | |
130 | "exit", "sys_b0_39", "getc", "putc", | |
131 | "getchar", "putchar", "gets", "puts", | |
132 | // 0x40 | |
133 | "cd", "format", "firstfile", "nextfile", | |
134 | "rename", "delete", "undelete", "AddDevice", | |
135 | "RemoteDevice", "PrintInstalledDevices", "InitCARD", "StartCARD", | |
136 | "StopCARD", "sys_b0_4d", "_card_write", "_card_read", | |
137 | // 0x50 | |
138 | "_new_card", "Krom2RawAdd", "sys_b0_52", "sys_b0_53", | |
139 | "_get_errno", "_get_error", "GetC0Table", "GetB0Table", | |
140 | "_card_chan", "sys_b0_59", "sys_b0_5a", "ChangeClearPAD", | |
141 | "_card_status", "_card_wait", | |
142 | }; | |
143 | ||
144 | char *biosC0n[256] = { | |
145 | // 0x00 | |
146 | "InitRCnt", "InitException", "SysEnqIntRP", "SysDeqIntRP", | |
147 | "get_free_EvCB_slot", "get_free_TCB_slot", "ExceptionHandler", "InstallExeptionHandler", | |
148 | "SysInitMemory", "SysInitKMem", "ChangeClearRCnt", "SystemError", | |
149 | "InitDefInt", "sys_c0_0d", "sys_c0_0e", "sys_c0_0f", | |
150 | // 0x10 | |
151 | "sys_c0_10", "sys_c0_11", "InstallDevices", "FlushStfInOutPut", | |
152 | "sys_c0_14", "_cdevinput", "_cdevscan", "_circgetc", | |
153 | "_circputc", "ioabort", "sys_c0_1a", "KernelRedirect", | |
154 | "PatchAOTable", | |
155 | }; | |
156 | ||
157 | //#define r0 (psxRegs.GPR.n.r0) | |
158 | #define at (psxRegs.GPR.n.at) | |
159 | #define v0 (psxRegs.GPR.n.v0) | |
160 | #define v1 (psxRegs.GPR.n.v1) | |
161 | #define a0 (psxRegs.GPR.n.a0) | |
162 | #define a1 (psxRegs.GPR.n.a1) | |
163 | #define a2 (psxRegs.GPR.n.a2) | |
164 | #define a3 (psxRegs.GPR.n.a3) | |
165 | #define t0 (psxRegs.GPR.n.t0) | |
166 | #define t1 (psxRegs.GPR.n.t1) | |
167 | #define t2 (psxRegs.GPR.n.t2) | |
168 | #define t3 (psxRegs.GPR.n.t3) | |
169 | #define t4 (psxRegs.GPR.n.t4) | |
170 | #define t5 (psxRegs.GPR.n.t5) | |
171 | #define t6 (psxRegs.GPR.n.t6) | |
172 | #define t7 (psxRegs.GPR.n.t7) | |
173 | #define t8 (psxRegs.GPR.n.t8) | |
174 | #define t9 (psxRegs.GPR.n.t9) | |
175 | #define s0 (psxRegs.GPR.n.s0) | |
176 | #define s1 (psxRegs.GPR.n.s1) | |
177 | #define s2 (psxRegs.GPR.n.s2) | |
178 | #define s3 (psxRegs.GPR.n.s3) | |
179 | #define s4 (psxRegs.GPR.n.s4) | |
180 | #define s5 (psxRegs.GPR.n.s5) | |
181 | #define s6 (psxRegs.GPR.n.s6) | |
182 | #define s7 (psxRegs.GPR.n.s7) | |
183 | #define k0 (psxRegs.GPR.n.k0) | |
184 | #define k1 (psxRegs.GPR.n.k1) | |
185 | #define gp (psxRegs.GPR.n.gp) | |
186 | #define sp (psxRegs.GPR.n.sp) | |
7575a4aa | 187 | #define fp (psxRegs.GPR.n.fp) |
ef79bbde P |
188 | #define ra (psxRegs.GPR.n.ra) |
189 | #define pc0 (psxRegs.pc) | |
190 | ||
191 | #define Ra0 ((char *)PSXM(a0)) | |
192 | #define Ra1 ((char *)PSXM(a1)) | |
193 | #define Ra2 ((char *)PSXM(a2)) | |
194 | #define Ra3 ((char *)PSXM(a3)) | |
195 | #define Rv0 ((char *)PSXM(v0)) | |
196 | #define Rsp ((char *)PSXM(sp)) | |
197 | ||
198 | typedef struct { | |
1fe066c6 | 199 | u32 class; |
200 | u32 status; | |
201 | u32 spec; | |
202 | u32 mode; | |
ef79bbde | 203 | u32 fhandler; |
1fe066c6 | 204 | u32 unused[2]; |
205 | } EvCB; | |
ef79bbde | 206 | |
1fe066c6 | 207 | #define EvStUNUSED 0x0000 |
208 | #define EvStDISABLED 0x1000 | |
209 | #define EvStACTIVE 0x2000 | |
210 | #define EvStALREADY 0x4000 | |
ef79bbde | 211 | |
1fe066c6 | 212 | #define EvMdCALL 0x1000 |
213 | #define EvMdMARK 0x2000 | |
ef79bbde P |
214 | |
215 | typedef struct { | |
9415f066 | 216 | u32 status; |
217 | u32 mode; | |
ef79bbde | 218 | u32 reg[32]; |
9415f066 | 219 | u32 epc; |
220 | u32 hi, lo; | |
221 | u32 sr, cause; | |
222 | u32 unused[9]; | |
ef79bbde P |
223 | } TCB; |
224 | ||
8ec1e4de | 225 | typedef struct { |
ef79bbde P |
226 | u32 _pc0; |
227 | u32 gp0; | |
228 | u32 t_addr; | |
229 | u32 t_size; | |
2bbcfe6b | 230 | u32 d_addr; // 10 |
ef79bbde P |
231 | u32 d_size; |
232 | u32 b_addr; | |
2bbcfe6b | 233 | u32 b_size; // 1c |
ef79bbde P |
234 | u32 S_addr; |
235 | u32 s_size; | |
236 | u32 _sp, _fp, _gp, ret, base; | |
237 | } EXEC; | |
238 | ||
239 | struct DIRENTRY { | |
240 | char name[20]; | |
241 | s32 attr; | |
242 | s32 size; | |
243 | u32 next; | |
244 | s32 head; | |
245 | char system[4]; | |
246 | }; | |
247 | ||
248 | typedef struct { | |
249 | char name[32]; | |
250 | u32 mode; | |
251 | u32 offset; | |
252 | u32 size; | |
253 | u32 mcfile; | |
254 | } FileDesc; | |
255 | ||
9ca104f3 | 256 | // todo: FileDesc layout is wrong |
257 | // todo: get rid of these globals | |
ef79bbde | 258 | static FileDesc FDesc[32]; |
52cf8a87 | 259 | static char ffile[64]; |
9ca104f3 | 260 | static int nfile; |
ef79bbde | 261 | |
9415f066 | 262 | // fixed RAM offsets, SCPH1001 compatible |
263 | #define A_TT_ExCB 0x0100 | |
264 | #define A_TT_PCB 0x0108 | |
265 | #define A_TT_TCB 0x0110 | |
1fe066c6 | 266 | #define A_TT_EvCB 0x0120 |
9415f066 | 267 | #define A_A0_TABLE 0x0200 |
268 | #define A_B0_TABLE 0x0874 | |
269 | #define A_C0_TABLE 0x0674 | |
270 | #define A_SYSCALL 0x0650 | |
271 | #define A_EXCEPTION 0x0c80 | |
272 | #define A_EXC_SP 0x6cf0 | |
273 | #define A_EEXIT_DEF 0x6cf4 | |
3807a976 | 274 | #define A_KMALLOC_PTR 0x7460 |
275 | #define A_KMALLOC_SIZE 0x7464 | |
276 | #define A_KMALLOC_END 0x7468 | |
e2f9c5e9 | 277 | #define A_PADCRD_CHN_E 0x74a8 // pad/card irq chain entry, see hleExcPadCard1() |
340addc5 | 278 | #define A_PAD_IRQR_ENA 0x74b8 // pad read on vint irq (nocash 'pad_enable_flag') |
279 | #define A_CARD_IRQR_ENA 0x74bc // same for card | |
280 | #define A_PAD_INBUF 0x74c8 // 2x buffers for rx pad data | |
281 | #define A_PAD_OUTBUF 0x74d0 // 2x buffers for tx pad data | |
282 | #define A_PAD_IN_LEN 0x74d8 | |
283 | #define A_PAD_OUT_LEN 0x74e0 | |
e2f9c5e9 | 284 | #define A_PAD_DR_DST 0x74c4 |
9ca104f3 | 285 | #define A_CARD_CHAN1 0x7500 |
e2f9c5e9 | 286 | #define A_PAD_DR_BUF1 0x7570 |
287 | #define A_PAD_DR_BUF2 0x7598 | |
9415f066 | 288 | #define A_EEXIT_PTR 0x75d0 |
289 | #define A_EXC_STACK 0x85d8 // exception stack top | |
290 | #define A_RCNT_VBL_ACK 0x8600 | |
340addc5 | 291 | #define A_PAD_ACK_VBL 0x8914 // enable vint ack by pad reading code |
9ca104f3 | 292 | #define A_HEAP_BASE 0x9000 |
293 | #define A_HEAP_SIZE 0x9004 | |
294 | #define A_HEAP_END 0x9008 | |
295 | #define A_HEAP_FLAG 0x900c | |
52cf8a87 | 296 | #define A_RND_SEED 0x9010 |
1fe066c6 | 297 | #define A_CD_EVENTS 0xb9b8 |
9415f066 | 298 | #define A_EXC_GP 0xf450 |
299 | ||
300 | #define HLEOP(n) SWAPu32((0x3b << 26) | (n)); | |
301 | ||
302 | static u32 loadRam32(u32 addr) | |
303 | { | |
304 | assert(!(addr & 0x5f800000)); | |
305 | return SWAP32(*((u32 *)psxM + ((addr & 0x1fffff) >> 2))); | |
306 | } | |
ef79bbde | 307 | |
340addc5 | 308 | static void *castRam8ptr(u32 addr) |
309 | { | |
310 | assert(!(addr & 0x5f800000)); | |
311 | return psxM + (addr & 0x1fffff); | |
312 | } | |
313 | ||
9415f066 | 314 | static void *castRam32ptr(u32 addr) |
315 | { | |
316 | assert(!(addr & 0x5f800003)); | |
317 | return psxM + (addr & 0x1ffffc); | |
318 | } | |
319 | ||
340addc5 | 320 | static void *loadRam8ptr(u32 addr) |
321 | { | |
322 | return castRam8ptr(loadRam32(addr)); | |
323 | } | |
324 | ||
9415f066 | 325 | static void *loadRam32ptr(u32 addr) |
326 | { | |
327 | return castRam32ptr(loadRam32(addr)); | |
328 | } | |
329 | ||
340addc5 | 330 | static void storeRam8(u32 addr, u8 d) |
331 | { | |
332 | assert(!(addr & 0x5f800000)); | |
333 | *((u8 *)psxM + (addr & 0x1fffff)) = d; | |
334 | } | |
335 | ||
9415f066 | 336 | static void storeRam32(u32 addr, u32 d) |
337 | { | |
338 | assert(!(addr & 0x5f800000)); | |
339 | *((u32 *)psxM + ((addr & 0x1fffff) >> 2)) = SWAP32(d); | |
340 | } | |
ef79bbde | 341 | |
9415f066 | 342 | static void mips_return(u32 val) |
343 | { | |
344 | v0 = val; | |
345 | pc0 = ra; | |
346 | } | |
ef79bbde | 347 | |
4ebf5791 | 348 | static void mips_return_void(void) |
349 | { | |
350 | pc0 = ra; | |
351 | } | |
352 | ||
9415f066 | 353 | static void use_cycles(u32 cycle) |
354 | { | |
355 | psxRegs.cycle += cycle * 2; | |
356 | } | |
ef79bbde | 357 | |
9415f066 | 358 | static void mips_return_c(u32 val, u32 cycle) |
359 | { | |
360 | use_cycles(cycle); | |
361 | mips_return(val); | |
ef79bbde P |
362 | } |
363 | ||
9415f066 | 364 | static void mips_return_void_c(u32 cycle) |
365 | { | |
366 | use_cycles(cycle); | |
367 | pc0 = ra; | |
368 | } | |
369 | ||
370 | static int returned_from_exception(void) | |
371 | { | |
372 | // 0x80000080 means it took another exception just after return | |
373 | return pc0 == k0 || pc0 == 0x80000080; | |
374 | } | |
375 | ||
376 | static inline void softCall(u32 pc) { | |
ef79bbde | 377 | u32 sra = ra; |
9415f066 | 378 | u32 ssr = psxRegs.CP0.n.SR; |
2bbcfe6b | 379 | u32 lim = 0; |
ef79bbde P |
380 | pc0 = pc; |
381 | ra = 0x80001000; | |
9415f066 | 382 | psxRegs.CP0.n.SR &= ~0x404; // disable interrupts |
ef79bbde | 383 | |
2bbcfe6b | 384 | while (pc0 != 0x80001000 && ++lim < 1000000) |
9415f066 | 385 | psxCpu->ExecuteBlock(EXEC_CALLER_HLE); |
ef79bbde | 386 | |
2bbcfe6b | 387 | if (lim == 1000000) |
388 | PSXBIOS_LOG("softCall @%x hit lim\n", pc); | |
ef79bbde | 389 | ra = sra; |
2bbcfe6b | 390 | psxRegs.CP0.n.SR |= ssr & 0x404; |
9415f066 | 391 | } |
ef79bbde | 392 | |
9415f066 | 393 | static inline void softCallInException(u32 pc) { |
394 | u32 sra = ra; | |
2bbcfe6b | 395 | u32 lim = 0; |
9415f066 | 396 | pc0 = pc; |
52cf8a87 | 397 | |
398 | assert(ra != 0x80001000); | |
399 | if (ra == 0x80001000) | |
400 | return; | |
9415f066 | 401 | ra = 0x80001000; |
402 | ||
2bbcfe6b | 403 | while (!returned_from_exception() && pc0 != 0x80001000 && ++lim < 1000000) |
9415f066 | 404 | psxCpu->ExecuteBlock(EXEC_CALLER_HLE); |
405 | ||
2bbcfe6b | 406 | if (lim == 1000000) |
407 | PSXBIOS_LOG("softCallInException @%x hit lim\n", pc); | |
9415f066 | 408 | if (pc0 == 0x80001000) |
409 | ra = sra; | |
ef79bbde P |
410 | } |
411 | ||
1fe066c6 | 412 | static u32 OpenEvent(u32 class, u32 spec, u32 mode, u32 func); |
413 | static u32 DeliverEvent(u32 class, u32 spec); | |
414 | static u32 UnDeliverEvent(u32 class, u32 spec); | |
415 | static void CloseEvent(u32 ev); | |
ef79bbde | 416 | |
ef79bbde P |
417 | /* * |
418 | // * | |
419 | // * | |
420 | // System calls A0 */ | |
421 | ||
422 | ||
d99f6068 | 423 | #define buread(Ra1, mcd, length) { \ |
2bbcfe6b | 424 | PSXBIOS_LOG("read %d: %x,%x (%s)\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2, Mcd##mcd##Data + 128 * FDesc[1 + mcd].mcfile + 0xa); \ |
d99f6068 | 425 | ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \ |
426 | memcpy(Ra1, ptr, length); \ | |
de6bb534 | 427 | psxCpu->Clear(a1, (length + 3) / 4); \ |
f1514614 | 428 | if (FDesc[1 + mcd].mode & 0x8000) { \ |
1fe066c6 | 429 | DeliverEvent(0xf0000011, 0x0004); \ |
430 | DeliverEvent(0xf4000001, 0x0004); \ | |
f1514614 | 431 | v0 = 0; } \ |
d99f6068 | 432 | else v0 = length; \ |
433 | FDesc[1 + mcd].offset += v0; \ | |
434 | } | |
435 | ||
436 | #define buwrite(Ra1, mcd, length) { \ | |
437 | u32 offset = + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \ | |
2bbcfe6b | 438 | PSXBIOS_LOG("write %d: %x,%x\n", FDesc[1 + mcd].mcfile, FDesc[1 + mcd].offset, a2); \ |
d99f6068 | 439 | ptr = Mcd##mcd##Data + offset; \ |
440 | memcpy(ptr, Ra1, length); \ | |
f1514614 | 441 | FDesc[1 + mcd].offset += length; \ |
6e522b2b | 442 | SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, offset, length); \ |
f1514614 | 443 | if (FDesc[1 + mcd].mode & 0x8000) { \ |
1fe066c6 | 444 | DeliverEvent(0xf0000011, 0x0004); \ |
445 | DeliverEvent(0xf4000001, 0x0004); \ | |
f1514614 | 446 | v0 = 0; } \ |
d99f6068 | 447 | else v0 = length; \ |
448 | } | |
449 | ||
324cec89 | 450 | /* Internally redirects to "FileRead(fd,tempbuf,1)".*/ |
451 | /* For some strange reason, the returned character is sign-expanded; */ | |
452 | /* So if a return value of FFFFFFFFh could mean either character FFh, or error. */ | |
453 | /* TODO FIX ME : Properly implement this behaviour */ | |
454 | void psxBios_getc(void) // 0x03, 0x35 | |
455 | { | |
d99f6068 | 456 | char *ptr; |
324cec89 | 457 | void *pa1 = Ra1; |
458 | #ifdef PSXBIOS_LOG | |
459 | PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x03]); | |
460 | #endif | |
461 | v0 = -1; | |
462 | ||
b012a437 | 463 | if (pa1 != INVALID_PTR) { |
324cec89 | 464 | switch (a0) { |
465 | case 2: buread(pa1, 1, 1); break; | |
466 | case 3: buread(pa1, 2, 1); break; | |
467 | } | |
468 | } | |
469 | ||
470 | pc0 = ra; | |
471 | } | |
472 | ||
473 | /* Copy of psxBios_write, except size is 1. */ | |
474 | void psxBios_putc(void) // 0x09, 0x3B | |
475 | { | |
d99f6068 | 476 | char *ptr; |
324cec89 | 477 | void *pa1 = Ra1; |
478 | #ifdef PSXBIOS_LOG | |
479 | PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x09]); | |
480 | #endif | |
481 | v0 = -1; | |
b012a437 | 482 | if (pa1 == INVALID_PTR) { |
324cec89 | 483 | pc0 = ra; |
484 | return; | |
485 | } | |
486 | ||
487 | if (a0 == 1) { // stdout | |
488 | char *ptr = (char *)pa1; | |
489 | ||
490 | v0 = a2; | |
491 | while (a2 > 0) { | |
492 | printf("%c", *ptr++); a2--; | |
493 | } | |
494 | pc0 = ra; return; | |
495 | } | |
496 | ||
497 | switch (a0) { | |
498 | case 2: buwrite(pa1, 1, 1); break; | |
499 | case 3: buwrite(pa1, 2, 1); break; | |
500 | } | |
501 | ||
502 | pc0 = ra; | |
503 | } | |
ef79bbde | 504 | |
ba11675c | 505 | void psxBios_todigit(void) // 0x0a |
506 | { | |
507 | int c = a0; | |
508 | #ifdef PSXBIOS_LOG | |
509 | PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x0a]); | |
510 | #endif | |
511 | c &= 0xFF; | |
512 | if (c >= 0x30 && c < 0x3A) { | |
513 | c -= 0x30; | |
514 | } | |
515 | else if (c > 0x60 && c < 0x7B) { | |
516 | c -= 0x20; | |
517 | } | |
518 | else if (c > 0x40 && c < 0x5B) { | |
519 | c = c - 0x41 + 10; | |
520 | } | |
521 | else if (c >= 0x80) { | |
522 | c = -1; | |
523 | } | |
524 | else | |
525 | { | |
526 | c = 0x0098967F; | |
527 | } | |
528 | v0 = c; | |
529 | pc0 = ra; | |
530 | } | |
531 | ||
ef79bbde P |
532 | void psxBios_abs() { // 0x0e |
533 | if ((s32)a0 < 0) v0 = -(s32)a0; | |
534 | else v0 = a0; | |
535 | pc0 = ra; | |
536 | } | |
537 | ||
538 | void psxBios_labs() { // 0x0f | |
539 | psxBios_abs(); | |
540 | } | |
541 | ||
542 | void psxBios_atoi() { // 0x10 | |
543 | s32 n = 0, f = 0; | |
544 | char *p = (char *)Ra0; | |
545 | ||
546 | for (;;p++) { | |
547 | switch (*p) { | |
548 | case ' ': case '\t': continue; | |
549 | case '-': f++; | |
550 | case '+': p++; | |
551 | } | |
552 | break; | |
553 | } | |
554 | ||
555 | while (*p >= '0' && *p <= '9') { | |
556 | n = n * 10 + *p++ - '0'; | |
557 | } | |
558 | ||
559 | v0 = (f ? -n : n); | |
560 | pc0 = ra; | |
561 | } | |
562 | ||
563 | void psxBios_atol() { // 0x11 | |
564 | psxBios_atoi(); | |
565 | } | |
566 | ||
9415f066 | 567 | struct jmp_buf_ { |
568 | u32 ra_, sp_, fp_; | |
569 | u32 s[8]; | |
570 | u32 gp_; | |
571 | }; | |
572 | ||
573 | static void psxBios_setjmp() { // 0x13 | |
574 | struct jmp_buf_ *jmp_buf = castRam32ptr(a0); | |
ef79bbde P |
575 | int i; |
576 | ||
9415f066 | 577 | PSXBIOS_LOG("psxBios_%s %x\n", biosA0n[0x13], a0); |
ef79bbde | 578 | |
9415f066 | 579 | jmp_buf->ra_ = SWAP32(ra); |
580 | jmp_buf->sp_ = SWAP32(sp); | |
581 | jmp_buf->fp_ = SWAP32(fp); | |
ef79bbde | 582 | for (i = 0; i < 8; i++) // s0-s7 |
9415f066 | 583 | jmp_buf->s[i] = SWAP32(psxRegs.GPR.r[16 + i]); |
584 | jmp_buf->gp_ = SWAP32(gp); | |
ef79bbde | 585 | |
9415f066 | 586 | mips_return_c(0, 15); |
ef79bbde P |
587 | } |
588 | ||
9415f066 | 589 | static void longjmp_load(const struct jmp_buf_ *jmp_buf) |
590 | { | |
ef79bbde P |
591 | int i; |
592 | ||
9415f066 | 593 | ra = SWAP32(jmp_buf->ra_); |
594 | sp = SWAP32(jmp_buf->sp_); | |
595 | fp = SWAP32(jmp_buf->fp_); | |
ef79bbde | 596 | for (i = 0; i < 8; i++) // s0-s7 |
9415f066 | 597 | psxRegs.GPR.r[16 + i] = SWAP32(jmp_buf->s[i]); |
598 | gp = SWAP32(jmp_buf->gp_);; | |
599 | } | |
ef79bbde | 600 | |
9415f066 | 601 | void psxBios_longjmp() { // 0x14 |
602 | struct jmp_buf_ *jmp_buf = castRam32ptr(a0); | |
603 | ||
604 | PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x14]); | |
605 | longjmp_load(jmp_buf); | |
606 | mips_return_c(a1, 15); | |
ef79bbde P |
607 | } |
608 | ||
609 | void psxBios_strcat() { // 0x15 | |
610 | char *p1 = (char *)Ra0, *p2 = (char *)Ra1; | |
611 | ||
612 | #ifdef PSXBIOS_LOG | |
613 | PSXBIOS_LOG("psxBios_%s: %s, %s\n", biosA0n[0x15], Ra0, Ra1); | |
614 | #endif | |
bee52312 | 615 | if (a0 == 0 || a1 == 0) |
616 | { | |
617 | v0 = 0; | |
618 | pc0 = ra; | |
619 | return; | |
620 | } | |
ef79bbde P |
621 | while (*p1++); |
622 | --p1; | |
623 | while ((*p1++ = *p2++) != '\0'); | |
624 | ||
625 | v0 = a0; pc0 = ra; | |
626 | } | |
627 | ||
628 | void psxBios_strncat() { // 0x16 | |
629 | char *p1 = (char *)Ra0, *p2 = (char *)Ra1; | |
630 | s32 n = a2; | |
631 | ||
632 | #ifdef PSXBIOS_LOG | |
633 | PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x16], Ra0, a0, Ra1, a1, a2); | |
634 | #endif | |
f42e1e90 | 635 | if (a0 == 0 || a1 == 0) |
636 | { | |
637 | v0 = 0; | |
638 | pc0 = ra; | |
639 | return; | |
640 | } | |
ef79bbde P |
641 | while (*p1++); |
642 | --p1; | |
643 | while ((*p1++ = *p2++) != '\0') { | |
644 | if (--n < 0) { | |
645 | *--p1 = '\0'; | |
646 | break; | |
647 | } | |
648 | } | |
649 | ||
650 | v0 = a0; pc0 = ra; | |
651 | } | |
652 | ||
653 | void psxBios_strcmp() { // 0x17 | |
654 | char *p1 = (char *)Ra0, *p2 = (char *)Ra1; | |
c044e3e5 | 655 | s32 n=0; |
656 | if (a0 == 0 && a1 == 0) | |
657 | { | |
658 | v0 = 0; | |
659 | pc0 = ra; | |
660 | return; | |
661 | } | |
662 | else if (a0 == 0 && a1 != 0) | |
663 | { | |
664 | v0 = -1; | |
665 | pc0 = ra; | |
666 | return; | |
667 | } | |
668 | else if (a0 != 0 && a1 == 0) | |
669 | { | |
670 | v0 = 1; | |
671 | pc0 = ra; | |
672 | return; | |
673 | } | |
ef79bbde P |
674 | #ifdef PSXBIOS_LOG |
675 | PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x)\n", biosA0n[0x17], Ra0, a0, Ra1, a1); | |
676 | #endif | |
677 | ||
678 | while (*p1 == *p2++) { | |
c044e3e5 | 679 | n++; |
ef79bbde | 680 | if (*p1++ == '\0') { |
c044e3e5 | 681 | v1=n-1; |
682 | a0+=n; | |
683 | a1+=n; | |
ef79bbde P |
684 | v0 = 0; |
685 | pc0 = ra; | |
686 | return; | |
687 | } | |
688 | } | |
689 | ||
690 | v0 = (*p1 - *--p2); | |
c044e3e5 | 691 | v1 = n; |
692 | a0+=n; | |
693 | a1+=n; | |
ef79bbde P |
694 | pc0 = ra; |
695 | } | |
696 | ||
697 | void psxBios_strncmp() { // 0x18 | |
698 | char *p1 = (char *)Ra0, *p2 = (char *)Ra1; | |
699 | s32 n = a2; | |
ba4ecb8c | 700 | if (a0 == 0 && a1 == 0) |
701 | { | |
702 | v0 = 0; | |
703 | pc0 = ra; | |
704 | return; | |
705 | } | |
706 | else if (a0 == 0 && a1 != 0) | |
707 | { | |
708 | v0 = -1; | |
709 | pc0 = ra; | |
710 | return; | |
711 | } | |
712 | else if (a0 != 0 && a1 == 0) | |
713 | { | |
714 | v0 = 1; | |
715 | pc0 = ra; | |
716 | return; | |
717 | } | |
ef79bbde P |
718 | #ifdef PSXBIOS_LOG |
719 | PSXBIOS_LOG("psxBios_%s: %s (%x), %s (%x), %d\n", biosA0n[0x18], Ra0, a0, Ra1, a1, a2); | |
720 | #endif | |
721 | ||
722 | while (--n >= 0 && *p1 == *p2++) { | |
723 | if (*p1++ == '\0') { | |
724 | v0 = 0; | |
725 | pc0 = ra; | |
ba4ecb8c | 726 | v1 = a2 - ((a2-n) - 1); |
727 | a0 += (a2-n) - 1; | |
728 | a1 += (a2-n) - 1; | |
729 | a2 = n; | |
ef79bbde P |
730 | return; |
731 | } | |
732 | } | |
733 | ||
734 | v0 = (n < 0 ? 0 : *p1 - *--p2); | |
735 | pc0 = ra; | |
ba4ecb8c | 736 | v1 = a2 - ((a2-n) - 1); |
737 | a0 += (a2-n) - 1; | |
738 | a1 += (a2-n) - 1; | |
739 | a2 = n; | |
ef79bbde P |
740 | } |
741 | ||
742 | void psxBios_strcpy() { // 0x19 | |
743 | char *p1 = (char *)Ra0, *p2 = (char *)Ra1; | |
c3d791f1 | 744 | if (a0 == 0 || a1 == 0) |
745 | { | |
746 | v0 = 0; | |
747 | pc0 = ra; | |
748 | return; | |
749 | } | |
ef79bbde P |
750 | while ((*p1++ = *p2++) != '\0'); |
751 | ||
752 | v0 = a0; pc0 = ra; | |
753 | } | |
754 | ||
755 | void psxBios_strncpy() { // 0x1a | |
756 | char *p1 = (char *)Ra0, *p2 = (char *)Ra1; | |
757 | s32 n = a2, i; | |
c3d791f1 | 758 | if (a0 == 0 || a1 == 0) |
759 | { | |
760 | v0 = 0; | |
761 | pc0 = ra; | |
762 | return; | |
763 | } | |
ef79bbde P |
764 | for (i = 0; i < n; i++) { |
765 | if ((*p1++ = *p2++) == '\0') { | |
766 | while (++i < n) { | |
767 | *p1++ = '\0'; | |
768 | } | |
769 | v0 = a0; pc0 = ra; | |
770 | return; | |
771 | } | |
772 | } | |
773 | ||
774 | v0 = a0; pc0 = ra; | |
775 | } | |
776 | ||
777 | void psxBios_strlen() { // 0x1b | |
778 | char *p = (char *)Ra0; | |
779 | v0 = 0; | |
2c6a5df8 | 780 | if (a0 == 0) |
781 | { | |
782 | pc0 = ra; | |
783 | return; | |
784 | } | |
ef79bbde P |
785 | while (*p++) v0++; |
786 | pc0 = ra; | |
787 | } | |
788 | ||
789 | void psxBios_index() { // 0x1c | |
790 | char *p = (char *)Ra0; | |
fcf7ec6c | 791 | if (a0 == 0) |
792 | { | |
793 | v0 = 0; | |
794 | pc0 = ra; | |
795 | return; | |
796 | } | |
ef79bbde P |
797 | |
798 | do { | |
799 | if (*p == a1) { | |
800 | v0 = a0 + (p - (char *)Ra0); | |
801 | pc0 = ra; | |
802 | return; | |
803 | } | |
804 | } while (*p++ != '\0'); | |
805 | ||
806 | v0 = 0; pc0 = ra; | |
807 | } | |
808 | ||
809 | void psxBios_rindex() { // 0x1d | |
810 | char *p = (char *)Ra0; | |
811 | ||
812 | v0 = 0; | |
fcf7ec6c | 813 | if (a0 == 0) |
814 | { | |
815 | pc0 = ra; | |
816 | return; | |
817 | } | |
ef79bbde P |
818 | do { |
819 | if (*p == a1) | |
820 | v0 = a0 + (p - (char *)Ra0); | |
821 | } while (*p++ != '\0'); | |
822 | ||
823 | pc0 = ra; | |
824 | } | |
825 | ||
826 | void psxBios_strchr() { // 0x1e | |
827 | psxBios_index(); | |
828 | } | |
829 | ||
830 | void psxBios_strrchr() { // 0x1f | |
831 | psxBios_rindex(); | |
832 | } | |
833 | ||
834 | void psxBios_strpbrk() { // 0x20 | |
835 | char *p1 = (char *)Ra0, *p2 = (char *)Ra1, *scanp, c, sc; | |
836 | ||
837 | while ((c = *p1++) != '\0') { | |
838 | for (scanp = p2; (sc = *scanp++) != '\0';) { | |
839 | if (sc == c) { | |
840 | v0 = a0 + (p1 - 1 - (char *)Ra0); | |
841 | pc0 = ra; | |
842 | return; | |
843 | } | |
844 | } | |
845 | } | |
846 | ||
847 | // BUG: return a0 instead of NULL if not found | |
848 | v0 = a0; pc0 = ra; | |
849 | } | |
850 | ||
851 | void psxBios_strspn() { // 0x21 | |
852 | char *p1, *p2; | |
853 | ||
854 | for (p1 = (char *)Ra0; *p1 != '\0'; p1++) { | |
855 | for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++); | |
856 | if (*p2 == '\0') break; | |
857 | } | |
858 | ||
859 | v0 = p1 - (char *)Ra0; pc0 = ra; | |
860 | } | |
861 | ||
862 | void psxBios_strcspn() { // 0x22 | |
863 | char *p1, *p2; | |
864 | ||
865 | for (p1 = (char *)Ra0; *p1 != '\0'; p1++) { | |
866 | for (p2 = (char *)Ra1; *p2 != '\0' && *p2 != *p1; p2++); | |
867 | if (*p2 != '\0') break; | |
868 | } | |
869 | ||
870 | v0 = p1 - (char *)Ra0; pc0 = ra; | |
871 | } | |
872 | ||
873 | void psxBios_strtok() { // 0x23 | |
874 | char *pcA0 = (char *)Ra0; | |
875 | char *pcRet = strtok(pcA0, (char *)Ra1); | |
876 | if (pcRet) | |
877 | v0 = a0 + pcRet - pcA0; | |
878 | else | |
879 | v0 = 0; | |
880 | pc0 = ra; | |
881 | } | |
882 | ||
883 | void psxBios_strstr() { // 0x24 | |
884 | char *p = (char *)Ra0, *p1, *p2; | |
885 | ||
886 | while (*p != '\0') { | |
887 | p1 = p; | |
888 | p2 = (char *)Ra1; | |
889 | ||
890 | while (*p1 != '\0' && *p2 != '\0' && *p1 == *p2) { | |
891 | p1++; p2++; | |
892 | } | |
893 | ||
894 | if (*p2 == '\0') { | |
895 | v0 = a0 + (p - (char *)Ra0); | |
896 | pc0 = ra; | |
897 | return; | |
898 | } | |
899 | ||
900 | p++; | |
901 | } | |
902 | ||
903 | v0 = 0; pc0 = ra; | |
904 | } | |
905 | ||
906 | void psxBios_toupper() { // 0x25 | |
907 | v0 = (s8)(a0 & 0xff); | |
908 | if (v0 >= 'a' && v0 <= 'z') v0 -= 'a' - 'A'; | |
909 | pc0 = ra; | |
910 | } | |
911 | ||
912 | void psxBios_tolower() { // 0x26 | |
913 | v0 = (s8)(a0 & 0xff); | |
914 | if (v0 >= 'A' && v0 <= 'Z') v0 += 'a' - 'A'; | |
915 | pc0 = ra; | |
916 | } | |
917 | ||
de6bb534 | 918 | static void do_memset(u32 dst, u32 v, s32 len) |
919 | { | |
920 | u32 d = dst; | |
921 | s32 l = len; | |
922 | while (l-- > 0) { | |
923 | u8 *db = PSXM(d); | |
924 | if (db != INVALID_PTR) | |
925 | *db = v; | |
926 | d++; | |
0148ffb7 | 927 | } |
de6bb534 | 928 | psxCpu->Clear(dst, (len + 3) / 4); |
929 | } | |
930 | ||
931 | static void do_memcpy(u32 dst, u32 src, s32 len) | |
932 | { | |
933 | u32 d = dst, s = src; | |
934 | s32 l = len; | |
935 | while (l-- > 0) { | |
936 | const u8 *sb = PSXM(s); | |
937 | u8 *db = PSXM(d); | |
938 | if (db != INVALID_PTR && sb != INVALID_PTR) | |
939 | *db = *sb; | |
940 | d++; | |
941 | s++; | |
942 | } | |
943 | psxCpu->Clear(dst, (len + 3) / 4); | |
944 | } | |
945 | ||
946 | static void psxBios_memcpy(); | |
947 | ||
12742a5c | 948 | static void psxBios_bcopy() { // 0x27 - memcpy with args swapped |
949 | //PSXBIOS_LOG("psxBios_%s %x %x %x\n", biosA0n[0x27], a0, a1, a2); | |
950 | u32 ret = a0, cycles = 0; | |
951 | if (a0 == 0) // ...but it checks src this time | |
952 | { | |
953 | mips_return_c(0, 4); | |
954 | return; | |
955 | } | |
956 | v1 = a0; | |
957 | if ((s32)a2 > 0) { | |
958 | do_memcpy(a1, a0, a2); | |
959 | cycles = a2 * 6; | |
960 | a0 += a2; | |
961 | a1 += a2; | |
962 | a2 = 0; | |
963 | } | |
964 | mips_return_c(ret, cycles + 5); | |
ef79bbde P |
965 | } |
966 | ||
9ca104f3 | 967 | static void psxBios_bzero() { // 0x28 |
01724d23 | 968 | /* Same as memset here (See memset below) */ |
de6bb534 | 969 | u32 ret = a0, cycles; |
9ca104f3 | 970 | if (a0 == 0 || (s32)a1 <= 0) |
01724d23 | 971 | { |
9ca104f3 | 972 | mips_return_c(0, 6); |
01724d23 | 973 | return; |
974 | } | |
de6bb534 | 975 | do_memset(a0, 0, a1); |
976 | cycles = a1 * 4; | |
977 | a0 += a1; | |
978 | a1 = 0; | |
9ca104f3 | 979 | // todo: many more cycles due to uncached bios mem |
de6bb534 | 980 | mips_return_c(ret, cycles + 5); |
ef79bbde P |
981 | } |
982 | ||
983 | void psxBios_bcmp() { // 0x29 | |
984 | char *p1 = (char *)Ra0, *p2 = (char *)Ra1; | |
985 | ||
986 | if (a0 == 0 || a1 == 0) { v0 = 0; pc0 = ra; return; } | |
987 | ||
5ec7acdf | 988 | while ((s32)a2-- > 0) { |
ef79bbde P |
989 | if (*p1++ != *p2++) { |
990 | v0 = *p1 - *p2; // BUG: compare the NEXT byte | |
991 | pc0 = ra; | |
992 | return; | |
993 | } | |
994 | } | |
995 | ||
996 | v0 = 0; pc0 = ra; | |
997 | } | |
998 | ||
de6bb534 | 999 | static void psxBios_memcpy() { // 0x2a |
1000 | u32 ret = a0, cycles = 0; | |
1001 | if (a0 == 0) | |
ef1da3dc | 1002 | { |
de6bb534 | 1003 | mips_return_c(0, 4); |
ef1da3dc | 1004 | return; |
1005 | } | |
4ebf5791 | 1006 | v1 = a0; |
de6bb534 | 1007 | if ((s32)a2 > 0) { |
1008 | do_memcpy(a0, a1, a2); | |
1009 | cycles = a2 * 6; | |
de6bb534 | 1010 | a0 += a2; |
1011 | a1 += a2; | |
1012 | a2 = 0; | |
ef1da3dc | 1013 | } |
de6bb534 | 1014 | mips_return_c(ret, cycles + 5); |
ef79bbde P |
1015 | } |
1016 | ||
9ca104f3 | 1017 | static void psxBios_memset() { // 0x2b |
de6bb534 | 1018 | u32 ret = a0, cycles; |
9ca104f3 | 1019 | if (a0 == 0 || (s32)a2 <= 0) |
3f28b64f | 1020 | { |
9ca104f3 | 1021 | mips_return_c(0, 6); |
3f28b64f | 1022 | return; |
1023 | } | |
de6bb534 | 1024 | do_memset(a0, a1, a2); |
1025 | cycles = a2 * 4; | |
1026 | a0 += a2; | |
1027 | a2 = 0; | |
9ca104f3 | 1028 | // todo: many more cycles due to uncached bios mem |
de6bb534 | 1029 | mips_return_c(ret, cycles + 5); |
ef79bbde P |
1030 | } |
1031 | ||
1032 | void psxBios_memmove() { // 0x2c | |
de6bb534 | 1033 | u32 ret = a0, cycles = 0; |
1034 | if (a0 == 0) | |
112dddf5 | 1035 | { |
de6bb534 | 1036 | mips_return_c(0, 4); |
112dddf5 | 1037 | return; |
1038 | } | |
de6bb534 | 1039 | v1 = a0; |
1040 | if ((s32)a2 > 0 && a0 > a1 && a0 < a1 + a2) { | |
1041 | u32 dst = a0, len = a2 + 1; | |
1042 | a0 += a2; | |
1043 | a1 += a2; | |
1044 | while ((s32)a2 >= 0) { // BUG: copies one more byte here | |
1045 | const u8 *sb = PSXM(a1); | |
1046 | u8 *db = PSXM(a0); | |
1047 | if (db != INVALID_PTR && sb != INVALID_PTR) | |
1048 | *db = *sb; | |
1049 | a0--; | |
1050 | a1--; | |
1051 | a2--; | |
1052 | } | |
1053 | psxCpu->Clear(dst, (len + 3) / 4); | |
1054 | cycles = 10 + len * 8; | |
1055 | } else if ((s32)a2 > 0) { | |
1056 | do_memcpy(a0, a1, a2); | |
1057 | cycles = a2 * 6; | |
1058 | a0 += a2; | |
1059 | a1 += a2; | |
1060 | a2 = 0; | |
ef79bbde | 1061 | } |
de6bb534 | 1062 | mips_return_c(ret, cycles + 5); |
ef79bbde P |
1063 | } |
1064 | ||
1065 | void psxBios_memcmp() { // 0x2d | |
1066 | psxBios_bcmp(); | |
1067 | } | |
1068 | ||
1069 | void psxBios_memchr() { // 0x2e | |
1070 | char *p = (char *)Ra0; | |
1071 | ||
0f598f20 | 1072 | if (a0 == 0 || a2 > 0x7FFFFFFF) |
1073 | { | |
1074 | pc0 = ra; | |
1075 | return; | |
1076 | } | |
ef79bbde | 1077 | |
5ec7acdf | 1078 | while ((s32)a2-- > 0) { |
ef79bbde P |
1079 | if (*p++ != (s8)a1) continue; |
1080 | v0 = a0 + (p - (char *)Ra0 - 1); | |
1081 | pc0 = ra; | |
1082 | return; | |
1083 | } | |
1084 | ||
1085 | v0 = 0; pc0 = ra; | |
1086 | } | |
1087 | ||
52cf8a87 | 1088 | static void psxBios_rand() { // 0x2f |
1089 | u32 s = loadRam32(A_RND_SEED) * 1103515245 + 12345; | |
1090 | storeRam32(A_RND_SEED, s); | |
1091 | v1 = s; | |
1092 | mips_return_c((s >> 16) & 0x7fff, 12+37); | |
ef79bbde P |
1093 | } |
1094 | ||
52cf8a87 | 1095 | static void psxBios_srand() { // 0x30 |
1096 | storeRam32(A_RND_SEED, a0); | |
1097 | mips_return_void_c(3); | |
ef79bbde P |
1098 | } |
1099 | ||
1100 | static u32 qscmpfunc, qswidth; | |
1101 | ||
1102 | static inline int qscmp(char *a, char *b) { | |
1103 | u32 sa0 = a0; | |
1104 | ||
1105 | a0 = sa0 + (a - (char *)PSXM(sa0)); | |
1106 | a1 = sa0 + (b - (char *)PSXM(sa0)); | |
1107 | ||
9415f066 | 1108 | softCall(qscmpfunc); |
ef79bbde P |
1109 | |
1110 | a0 = sa0; | |
1111 | return (s32)v0; | |
1112 | } | |
1113 | ||
1114 | static inline void qexchange(char *i, char *j) { | |
1115 | char t; | |
1116 | int n = qswidth; | |
1117 | ||
1118 | do { | |
1119 | t = *i; | |
1120 | *i++ = *j; | |
1121 | *j++ = t; | |
1122 | } while (--n); | |
1123 | } | |
1124 | ||
1125 | static inline void q3exchange(char *i, char *j, char *k) { | |
1126 | char t; | |
1127 | int n = qswidth; | |
1128 | ||
1129 | do { | |
1130 | t = *i; | |
1131 | *i++ = *k; | |
1132 | *k++ = *j; | |
1133 | *j++ = t; | |
1134 | } while (--n); | |
1135 | } | |
1136 | ||
1137 | static void qsort_main(char *a, char *l) { | |
1138 | char *i, *j, *lp, *hp; | |
1139 | int c; | |
1140 | unsigned int n; | |
1141 | ||
1142 | start: | |
1143 | if ((n = l - a) <= qswidth) | |
1144 | return; | |
1145 | n = qswidth * (n / (2 * qswidth)); | |
1146 | hp = lp = a + n; | |
1147 | i = a; | |
1148 | j = l - qswidth; | |
1149 | while (TRUE) { | |
1150 | if (i < lp) { | |
1151 | if ((c = qscmp(i, lp)) == 0) { | |
1152 | qexchange(i, lp -= qswidth); | |
1153 | continue; | |
1154 | } | |
1155 | if (c < 0) { | |
1156 | i += qswidth; | |
1157 | continue; | |
1158 | } | |
1159 | } | |
1160 | ||
1161 | loop: | |
1162 | if (j > hp) { | |
1163 | if ((c = qscmp(hp, j)) == 0) { | |
1164 | qexchange(hp += qswidth, j); | |
1165 | goto loop; | |
1166 | } | |
1167 | if (c > 0) { | |
1168 | if (i == lp) { | |
1169 | q3exchange(i, hp += qswidth, j); | |
1170 | i = lp += qswidth; | |
1171 | goto loop; | |
1172 | } | |
1173 | qexchange(i, j); | |
1174 | j -= qswidth; | |
1175 | i += qswidth; | |
1176 | continue; | |
1177 | } | |
1178 | j -= qswidth; | |
1179 | goto loop; | |
1180 | } | |
1181 | ||
1182 | if (i == lp) { | |
1183 | if (lp - a >= l - hp) { | |
1184 | qsort_main(hp + qswidth, l); | |
1185 | l = lp; | |
1186 | } else { | |
1187 | qsort_main(a, lp); | |
1188 | a = hp + qswidth; | |
1189 | } | |
1190 | goto start; | |
1191 | } | |
1192 | ||
1193 | q3exchange(j, lp -= qswidth, i); | |
1194 | j = hp -= qswidth; | |
1195 | } | |
1196 | } | |
1197 | ||
1198 | void psxBios_qsort() { // 0x31 | |
1199 | qswidth = a2; | |
1200 | qscmpfunc = a3; | |
1201 | qsort_main((char *)Ra0, (char *)Ra0 + a1 * a2); | |
1202 | ||
1203 | pc0 = ra; | |
1204 | } | |
1205 | ||
9ca104f3 | 1206 | // this isn't how the real bios works, but maybe good enough |
1207 | static void psxBios_malloc() { // 0x33 | |
1208 | u32 *heap_addr, *heap_end; | |
2cb5735e | 1209 | u32 *chunk, *newchunk = NULL; |
808a13bd | 1210 | unsigned int dsize = 0, csize, cstat; |
ef79bbde | 1211 | int colflag; |
9ca104f3 | 1212 | PSXBIOS_LOG("psxBios_%s %x\n", biosA0n[0x33], a0); |
1213 | heap_addr = loadRam32ptr(A_HEAP_BASE); | |
1214 | heap_end = loadRam32ptr(A_HEAP_END); | |
1215 | if (heap_addr >= heap_end) { | |
26b964b5 | 1216 | v0 = 0; |
1217 | pc0 = ra; | |
1218 | return; | |
1219 | } | |
ef79bbde P |
1220 | |
1221 | // scan through heap and combine free chunks of space | |
1222 | chunk = heap_addr; | |
1223 | colflag = 0; | |
1224 | while(chunk < heap_end) { | |
1225 | // get size and status of actual chunk | |
1226 | csize = ((u32)*chunk) & 0xfffffffc; | |
1227 | cstat = ((u32)*chunk) & 1; | |
1228 | ||
26b964b5 | 1229 | // most probably broken heap descriptor |
1230 | // this fixes Burning Road | |
1231 | if (*chunk == 0) { | |
1232 | newchunk = chunk; | |
1233 | dsize = ((uptr)heap_end - (uptr)chunk) - 4; | |
1234 | colflag = 1; | |
1235 | break; | |
1236 | } | |
1237 | ||
ef79bbde P |
1238 | // it's a free chunk |
1239 | if(cstat == 1) { | |
1240 | if(colflag == 0) { | |
1241 | newchunk = chunk; | |
1242 | dsize = csize; | |
1243 | colflag = 1; // let's begin a new collection of free memory | |
1244 | } | |
1245 | else dsize += (csize+4); // add the new size including header | |
1246 | } | |
1247 | // not a free chunk: did we start a collection ? | |
1248 | else { | |
1249 | if(colflag == 1) { // collection is over | |
1250 | colflag = 0; | |
1251 | *newchunk = SWAP32(dsize | 1); | |
1252 | } | |
1253 | } | |
1254 | ||
1255 | // next chunk | |
1256 | chunk = (u32*)((uptr)chunk + csize + 4); | |
1257 | } | |
1258 | // if neccessary free memory on end of heap | |
1259 | if (colflag == 1) | |
1260 | *newchunk = SWAP32(dsize | 1); | |
1261 | ||
1262 | chunk = heap_addr; | |
1263 | csize = ((u32)*chunk) & 0xfffffffc; | |
1264 | cstat = ((u32)*chunk) & 1; | |
1265 | dsize = (a0 + 3) & 0xfffffffc; | |
1266 | ||
1267 | // exit on uninitialized heap | |
1268 | if (chunk == NULL) { | |
26b964b5 | 1269 | printf("malloc %x,%x: Uninitialized Heap!\n", v0, a0); |
ef79bbde P |
1270 | v0 = 0; |
1271 | pc0 = ra; | |
1272 | return; | |
1273 | } | |
1274 | ||
1275 | // search an unused chunk that is big enough until the end of the heap | |
26b964b5 | 1276 | while ((dsize > csize || cstat==0) && chunk < heap_end ) { |
ef79bbde | 1277 | chunk = (u32*)((uptr)chunk + csize + 4); |
26b964b5 | 1278 | |
1279 | // catch out of memory | |
1280 | if(chunk >= heap_end) { | |
1281 | printf("malloc %x,%x: Out of memory error!\n", | |
1282 | v0, a0); | |
1283 | v0 = 0; pc0 = ra; | |
1284 | return; | |
1285 | } | |
1286 | ||
ef79bbde P |
1287 | csize = ((u32)*chunk) & 0xfffffffc; |
1288 | cstat = ((u32)*chunk) & 1; | |
1289 | } | |
1290 | ||
ef79bbde P |
1291 | // allocate memory |
1292 | if(dsize == csize) { | |
1293 | // chunk has same size | |
1294 | *chunk &= 0xfffffffc; | |
26b964b5 | 1295 | } else if (dsize > csize) { |
1296 | v0 = 0; pc0 = ra; | |
1297 | return; | |
1298 | } else { | |
ef79bbde P |
1299 | // split free chunk |
1300 | *chunk = SWAP32(dsize); | |
1301 | newchunk = (u32*)((uptr)chunk + dsize + 4); | |
808a13bd | 1302 | *newchunk = SWAP32(((csize - dsize - 4) & 0xfffffffc) | 1); |
ef79bbde P |
1303 | } |
1304 | ||
1305 | // return pointer to allocated memory | |
26b964b5 | 1306 | v0 = ((uptr)chunk - (uptr)psxM) + 4; |
ef79bbde | 1307 | v0|= 0x80000000; |
26b964b5 | 1308 | //printf ("malloc %x,%x\n", v0, a0); |
ef79bbde P |
1309 | pc0 = ra; |
1310 | } | |
1311 | ||
9ca104f3 | 1312 | static void psxBios_free() { // 0x34 |
1313 | PSXBIOS_LOG("psxBios_%s %x (%x bytes)\n", biosA0n[0x34], a0, loadRam32(a0 - 4)); | |
1314 | storeRam32(a0 - 4, loadRam32(a0 - 4) | 1); // set chunk to free | |
1315 | mips_return_void_c(5); | |
ef79bbde P |
1316 | } |
1317 | ||
9ca104f3 | 1318 | static void psxBios_calloc() { // 0x37 |
1319 | u32 ret, size; | |
1320 | PSXBIOS_LOG("psxBios_%s %x %x\n", biosA0n[0x37], a0, a1); | |
ef79bbde | 1321 | |
9ca104f3 | 1322 | a0 = size = a0 * a1; |
ef79bbde | 1323 | psxBios_malloc(); |
9ca104f3 | 1324 | ret = v0; |
1325 | if (ret) { | |
1326 | a0 = ret; a1 = size; | |
1327 | psxBios_bzero(); | |
1328 | } | |
1329 | mips_return_c(ret, 21); | |
ef79bbde P |
1330 | } |
1331 | ||
1332 | void psxBios_realloc() { // 0x38 | |
1333 | u32 block = a0; | |
1334 | u32 size = a1; | |
1335 | #ifdef PSXBIOS_LOG | |
1336 | PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x38]); | |
1337 | #endif | |
1338 | ||
1339 | a0 = block; | |
391b1d5b | 1340 | /* If "old_buf" is zero, executes malloc(new_size), and returns r2=new_buf (or 0=failed). */ |
1341 | if (block == 0) | |
1342 | { | |
1343 | psxBios_malloc(); | |
1344 | } | |
1345 | /* Else, if "new_size" is zero, executes free(old_buf), and returns r2=garbage. */ | |
1346 | else if (size == 0) | |
1347 | { | |
1348 | psxBios_free(); | |
1349 | } | |
1350 | /* Else, executes malloc(new_size), bcopy(old_buf,new_buf,new_size), and free(old_buf), and returns r2=new_buf (or 0=failed). */ | |
1351 | /* Note that it is not quite implemented this way here. */ | |
1352 | else | |
1353 | { | |
1354 | psxBios_free(); | |
1355 | a0 = size; | |
1356 | psxBios_malloc(); | |
1357 | } | |
ef79bbde P |
1358 | } |
1359 | ||
1360 | ||
1361 | /* InitHeap(void *block , int n) */ | |
9ca104f3 | 1362 | static void psxBios_InitHeap() { // 0x39 |
1363 | PSXBIOS_LOG("psxBios_%s %x %x\n", biosA0n[0x39], a0, a1); | |
ef79bbde | 1364 | |
9ca104f3 | 1365 | storeRam32(A_HEAP_BASE, a0); |
1366 | storeRam32(A_HEAP_SIZE, a1); | |
1367 | storeRam32(A_HEAP_END, a0 + (a1 & ~3) + 4); | |
1368 | storeRam32(A_HEAP_FLAG, 0); | |
1369 | storeRam32(a0, 0); | |
ef79bbde | 1370 | |
9ca104f3 | 1371 | mips_return_void_c(14); |
ef79bbde P |
1372 | } |
1373 | ||
1374 | void psxBios_getchar() { //0x3b | |
1375 | v0 = getchar(); pc0 = ra; | |
1376 | } | |
1377 | ||
c02b90b2 | 1378 | static void psxBios_printf_psxout() { // 0x3f |
ef79bbde P |
1379 | char tmp[1024]; |
1380 | char tmp2[1024]; | |
1381 | u32 save[4]; | |
1382 | char *ptmp = tmp; | |
1383 | int n=1, i=0, j; | |
02949f79 | 1384 | void *psp; |
1385 | ||
1386 | psp = PSXM(sp); | |
b012a437 | 1387 | if (psp != INVALID_PTR) { |
02949f79 | 1388 | memcpy(save, psp, 4 * 4); |
1389 | psxMu32ref(sp) = SWAP32((u32)a0); | |
1390 | psxMu32ref(sp + 4) = SWAP32((u32)a1); | |
1391 | psxMu32ref(sp + 8) = SWAP32((u32)a2); | |
1392 | psxMu32ref(sp + 12) = SWAP32((u32)a3); | |
1393 | } | |
ef79bbde P |
1394 | |
1395 | while (Ra0[i]) { | |
1396 | switch (Ra0[i]) { | |
1397 | case '%': | |
1398 | j = 0; | |
1399 | tmp2[j++] = '%'; | |
1400 | _start: | |
1401 | switch (Ra0[++i]) { | |
1402 | case '.': | |
1403 | case 'l': | |
1404 | tmp2[j++] = Ra0[i]; goto _start; | |
1405 | default: | |
1406 | if (Ra0[i] >= '0' && Ra0[i] <= '9') { | |
1407 | tmp2[j++] = Ra0[i]; | |
1408 | goto _start; | |
1409 | } | |
1410 | break; | |
1411 | } | |
1412 | tmp2[j++] = Ra0[i]; | |
1413 | tmp2[j] = 0; | |
1414 | ||
1415 | switch (Ra0[i]) { | |
1416 | case 'f': case 'F': | |
1417 | ptmp += sprintf(ptmp, tmp2, (float)psxMu32(sp + n * 4)); n++; break; | |
1418 | case 'a': case 'A': | |
1419 | case 'e': case 'E': | |
1420 | case 'g': case 'G': | |
1421 | ptmp += sprintf(ptmp, tmp2, (double)psxMu32(sp + n * 4)); n++; break; | |
1422 | case 'p': | |
888468ff | 1423 | case 'i': case 'u': |
ef79bbde P |
1424 | case 'd': case 'D': |
1425 | case 'o': case 'O': | |
1426 | case 'x': case 'X': | |
1427 | ptmp += sprintf(ptmp, tmp2, (unsigned int)psxMu32(sp + n * 4)); n++; break; | |
1428 | case 'c': | |
1429 | ptmp += sprintf(ptmp, tmp2, (unsigned char)psxMu32(sp + n * 4)); n++; break; | |
1430 | case 's': | |
1431 | ptmp += sprintf(ptmp, tmp2, (char*)PSXM(psxMu32(sp + n * 4))); n++; break; | |
1432 | case '%': | |
1433 | *ptmp++ = Ra0[i]; break; | |
1434 | } | |
1435 | i++; | |
1436 | break; | |
1437 | default: | |
1438 | *ptmp++ = Ra0[i++]; | |
1439 | } | |
1440 | } | |
1441 | *ptmp = 0; | |
1442 | ||
c02b90b2 | 1443 | if (psp != INVALID_PTR) |
02949f79 | 1444 | memcpy(psp, save, 4 * 4); |
ef79bbde | 1445 | |
2bbcfe6b | 1446 | if (Config.PsxOut) |
1447 | SysPrintf("%s", tmp); | |
c02b90b2 | 1448 | } |
ef79bbde | 1449 | |
c02b90b2 | 1450 | void psxBios_printf() { // 0x3f |
1451 | psxBios_printf_psxout(); | |
ef79bbde P |
1452 | pc0 = ra; |
1453 | } | |
1454 | ||
e7e1f572 | 1455 | void psxBios_format() { // 0x41 |
1456 | if (strcmp(Ra0, "bu00:") == 0 && Config.Mcd1[0] != '\0') | |
1457 | { | |
1458 | CreateMcd(Config.Mcd1); | |
1459 | LoadMcd(1, Config.Mcd1); | |
1460 | v0 = 1; | |
1461 | } | |
1462 | else if (strcmp(Ra0, "bu10:") == 0 && Config.Mcd2[0] != '\0') | |
1463 | { | |
1464 | CreateMcd(Config.Mcd2); | |
1465 | LoadMcd(2, Config.Mcd2); | |
1466 | v0 = 1; | |
1467 | } | |
1468 | else | |
1469 | { | |
1470 | v0 = 0; | |
1471 | } | |
1472 | pc0 = ra; | |
1473 | } | |
1474 | ||
9415f066 | 1475 | static void psxBios_SystemErrorUnresolvedException() { |
1476 | if (loadRam32(0xfffc) != 0x12345678) { // prevent log flood | |
2bbcfe6b | 1477 | SysPrintf("psxBios_%s called from %08x\n", biosA0n[0x40], ra); |
9415f066 | 1478 | storeRam32(0xfffc, 0x12345678); |
1479 | } | |
1480 | mips_return_void_c(1000); | |
1481 | } | |
1482 | ||
4ebf5791 | 1483 | static void FlushCache() { |
1484 | psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_ISOLATED, NULL); | |
1485 | psxCpu->Notify(R3000ACPU_NOTIFY_CACHE_UNISOLATED, NULL); | |
1486 | k0 = 0xbfc0193c; | |
1487 | // runs from uncached mem so tons of cycles | |
1488 | use_cycles(500); | |
1489 | } | |
1490 | ||
ef79bbde P |
1491 | /* |
1492 | * long Load(char *name, struct EXEC *header); | |
1493 | */ | |
1494 | ||
1495 | void psxBios_Load() { // 0x42 | |
1496 | EXE_HEADER eheader; | |
02949f79 | 1497 | void *pa1; |
ef79bbde | 1498 | |
02949f79 | 1499 | pa1 = Ra1; |
de6bb534 | 1500 | if (pa1 != INVALID_PTR && LoadCdromFile(Ra0, &eheader) == 0) { |
02949f79 | 1501 | memcpy(pa1, ((char*)&eheader)+16, sizeof(EXEC)); |
de6bb534 | 1502 | psxCpu->Clear(a1, sizeof(EXEC) / 4); |
4ebf5791 | 1503 | FlushCache(); |
ef79bbde P |
1504 | v0 = 1; |
1505 | } else v0 = 0; | |
3807a976 | 1506 | PSXBIOS_LOG("psxBios_%s: %s, %d -> %d\n", biosA0n[0x42], Ra0, a1, v0); |
ef79bbde P |
1507 | |
1508 | pc0 = ra; | |
1509 | } | |
1510 | ||
1511 | /* | |
1512 | * int Exec(struct EXEC *header , int argc , char **argv); | |
1513 | */ | |
1514 | ||
1515 | void psxBios_Exec() { // 43 | |
2bbcfe6b | 1516 | EXEC *header = (EXEC *)castRam32ptr(a0); |
1517 | u32 ptr; | |
1518 | s32 len; | |
ef79bbde | 1519 | |
ef79bbde | 1520 | PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosA0n[0x43], a0, a1, a2); |
ef79bbde | 1521 | |
2bbcfe6b | 1522 | header->_sp = SWAP32(sp); |
1523 | header->_fp = SWAP32(fp); | |
1524 | header->_sp = SWAP32(sp); | |
1525 | header->_gp = SWAP32(gp); | |
1526 | header->ret = SWAP32(ra); | |
1527 | header->base = SWAP32(s0); | |
ef79bbde | 1528 | |
2bbcfe6b | 1529 | ptr = SWAP32(header->b_addr); |
1530 | len = SWAP32(header->b_size); | |
1531 | if (len != 0) do { | |
1532 | storeRam32(ptr, 0); | |
1533 | len -= 4; ptr += 4; | |
1534 | } while (len > 0); | |
1535 | ||
1536 | if (header->S_addr != 0) | |
1537 | sp = fp = SWAP32(header->S_addr) + SWAP32(header->s_size); | |
ef79bbde | 1538 | |
2bbcfe6b | 1539 | gp = SWAP32(header->gp0); |
ef79bbde P |
1540 | |
1541 | s0 = a0; | |
1542 | ||
1543 | a0 = a1; | |
1544 | a1 = a2; | |
1545 | ||
1546 | ra = 0x8000; | |
2bbcfe6b | 1547 | pc0 = SWAP32(header->_pc0); |
ef79bbde P |
1548 | } |
1549 | ||
4ebf5791 | 1550 | static void psxBios_FlushCache() { // 44 |
ef79bbde | 1551 | PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x44]); |
4ebf5791 | 1552 | FlushCache(); |
1553 | mips_return_void(); | |
ef79bbde P |
1554 | } |
1555 | ||
1556 | void psxBios_GPU_dw() { // 0x46 | |
1557 | int size; | |
355c9136 | 1558 | u32 *ptr; |
ef79bbde P |
1559 | |
1560 | #ifdef PSXBIOS_LOG | |
1561 | PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x46]); | |
1562 | #endif | |
1563 | ||
1564 | GPU_writeData(0xa0000000); | |
355c9136 | 1565 | GPU_writeData((a1<<0x10)|(a0&0xffff)); |
1566 | GPU_writeData((a3<<0x10)|(a2&0xffff)); | |
1567 | size = (a2*a3)/2; | |
1568 | ptr = (u32*)PSXM(Rsp[4]); //that is correct? | |
1569 | while(size--) | |
1570 | { | |
1571 | GPU_writeData(SWAPu32(*ptr++)); | |
1572 | } | |
ef79bbde P |
1573 | |
1574 | pc0 = ra; | |
8ec1e4de | 1575 | } |
ef79bbde P |
1576 | |
1577 | void psxBios_mem2vram() { // 0x47 | |
1578 | int size; | |
52cf8a87 | 1579 | gpuSyncPluginSR(); // flush |
ef79bbde | 1580 | GPU_writeData(0xa0000000); |
355c9136 | 1581 | GPU_writeData((a1<<0x10)|(a0&0xffff)); |
1582 | GPU_writeData((a3<<0x10)|(a2&0xffff)); | |
1583 | size = ((((a2 * a3) / 2) >> 4) << 16); | |
ef79bbde P |
1584 | GPU_writeStatus(0x04000002); |
1585 | psxHwWrite32(0x1f8010f4,0); | |
1586 | psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800); | |
1587 | psxHwWrite32(0x1f8010a0,Rsp[4]);//might have a buggy... | |
355c9136 | 1588 | psxHwWrite32(0x1f8010a4, size | 0x10); |
ef79bbde P |
1589 | psxHwWrite32(0x1f8010a8,0x01000201); |
1590 | ||
1591 | pc0 = ra; | |
1592 | } | |
1593 | ||
1594 | void psxBios_SendGPU() { // 0x48 | |
1595 | GPU_writeStatus(a0); | |
ddbaf678 | 1596 | gpuSyncPluginSR(); |
ef79bbde P |
1597 | pc0 = ra; |
1598 | } | |
1599 | ||
1600 | void psxBios_GPU_cw() { // 0x49 | |
1601 | GPU_writeData(a0); | |
52cf8a87 | 1602 | gpuSyncPluginSR(); |
355c9136 | 1603 | v0 = HW_GPU_STATUS; |
ef79bbde P |
1604 | pc0 = ra; |
1605 | } | |
1606 | ||
1607 | void psxBios_GPU_cwb() { // 0x4a | |
355c9136 | 1608 | u32 *ptr = (u32*)Ra0; |
ef79bbde | 1609 | int size = a1; |
355c9136 | 1610 | gpuSyncPluginSR(); |
1611 | while(size--) | |
1612 | { | |
1613 | GPU_writeData(SWAPu32(*ptr++)); | |
ef79bbde P |
1614 | } |
1615 | ||
1616 | pc0 = ra; | |
1617 | } | |
355c9136 | 1618 | |
1619 | void psxBios_GPU_SendPackets() { //4b: | |
1620 | gpuSyncPluginSR(); | |
ef79bbde P |
1621 | GPU_writeStatus(0x04000002); |
1622 | psxHwWrite32(0x1f8010f4,0); | |
1623 | psxHwWrite32(0x1f8010f0,psxHwRead32(0x1f8010f0)|0x800); | |
1624 | psxHwWrite32(0x1f8010a0,a0); | |
1625 | psxHwWrite32(0x1f8010a4,0); | |
1626 | psxHwWrite32(0x1f8010a8,0x010000401); | |
1627 | pc0 = ra; | |
1628 | } | |
1629 | ||
1630 | void psxBios_sys_a0_4c() { // 0x4c GPU relate | |
1631 | psxHwWrite32(0x1f8010a8,0x00000401); | |
1632 | GPU_writeData(0x0400000); | |
1633 | GPU_writeData(0x0200000); | |
1634 | GPU_writeData(0x0100000); | |
cd1ea245 | 1635 | v0 = 0x1f801814; |
ef79bbde P |
1636 | pc0 = ra; |
1637 | } | |
1638 | ||
1639 | void psxBios_GPU_GetGPUStatus() { // 0x4d | |
1640 | v0 = GPU_readStatus(); | |
1641 | pc0 = ra; | |
1642 | } | |
1643 | ||
1644 | #undef s_addr | |
1645 | ||
1646 | void psxBios_LoadExec() { // 51 | |
1647 | EXEC *header = (EXEC*)PSXM(0xf000); | |
1648 | u32 s_addr, s_size; | |
1649 | ||
1650 | #ifdef PSXBIOS_LOG | |
1651 | PSXBIOS_LOG("psxBios_%s: %s: %x,%x\n", biosA0n[0x51], Ra0, a1, a2); | |
1652 | #endif | |
1653 | s_addr = a1; s_size = a2; | |
1654 | ||
8ec1e4de | 1655 | a1 = 0xf000; |
ef79bbde P |
1656 | psxBios_Load(); |
1657 | ||
1658 | header->S_addr = s_addr; | |
1659 | header->s_size = s_size; | |
1660 | ||
1661 | a0 = 0xf000; a1 = 0; a2 = 0; | |
1662 | psxBios_Exec(); | |
1663 | } | |
1664 | ||
1665 | void psxBios__bu_init() { // 70 | |
1666 | #ifdef PSXBIOS_LOG | |
1667 | PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]); | |
1668 | #endif | |
1669 | ||
1fe066c6 | 1670 | DeliverEvent(0xf0000011, 0x0004); |
1671 | DeliverEvent(0xf4000001, 0x0004); | |
ef79bbde P |
1672 | |
1673 | pc0 = ra; | |
1674 | } | |
1675 | ||
1676 | void psxBios__96_init() { // 71 | |
1677 | #ifdef PSXBIOS_LOG | |
1678 | PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x71]); | |
1679 | #endif | |
1680 | ||
1681 | pc0 = ra; | |
1682 | } | |
1683 | ||
340addc5 | 1684 | static void write_chain(u32 *d, u32 next, u32 handler1, u32 handler2); |
1685 | static void psxBios_SysEnqIntRP_(u32 priority, u32 chain_eptr); | |
1686 | static void psxBios_SysDeqIntRP_(u32 priority, u32 chain_rm_eptr); | |
9415f066 | 1687 | |
1688 | static void psxBios_DequeueCdIntr_() { | |
340addc5 | 1689 | psxBios_SysDeqIntRP_(0, 0x91d0); |
1690 | psxBios_SysDeqIntRP_(0, 0x91e0); | |
9415f066 | 1691 | use_cycles(16); |
1692 | } | |
1693 | ||
1694 | static void psxBios_DequeueCdIntr() { // a3 | |
1695 | PSXBIOS_LOG("psxBios_%s\n", biosA0n[0xa3]); | |
1696 | psxBios_DequeueCdIntr_(); | |
1697 | } | |
1698 | ||
1699 | static void psxBios_CdRemove() { // 56, 72 | |
ef79bbde | 1700 | PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]); |
ef79bbde | 1701 | |
1fe066c6 | 1702 | CloseEvent(loadRam32(A_CD_EVENTS + 0x00)); |
1703 | CloseEvent(loadRam32(A_CD_EVENTS + 0x04)); | |
1704 | CloseEvent(loadRam32(A_CD_EVENTS + 0x08)); | |
1705 | CloseEvent(loadRam32(A_CD_EVENTS + 0x0c)); | |
1706 | CloseEvent(loadRam32(A_CD_EVENTS + 0x10)); | |
9415f066 | 1707 | psxBios_DequeueCdIntr_(); |
1708 | ||
1709 | // EnterCriticalSection - should be done at the beginning, | |
1710 | // but this way is much easier to implement | |
1711 | a0 = 1; | |
1712 | pc0 = A_SYSCALL; | |
1713 | use_cycles(30); | |
ef79bbde P |
1714 | } |
1715 | ||
1716 | void psxBios_SetMem() { // 9f | |
1717 | u32 new = psxHu32(0x1060); | |
1718 | ||
1719 | #ifdef PSXBIOS_LOG | |
1720 | PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosA0n[0x9f], a0, a1); | |
1721 | #endif | |
1722 | ||
1723 | switch(a0) { | |
1724 | case 2: | |
1725 | psxHu32ref(0x1060) = SWAP32(new); | |
1726 | psxMu32ref(0x060) = a0; | |
2bbcfe6b | 1727 | PSXBIOS_LOG("Change effective memory : %d MBytes\n",a0); |
ef79bbde P |
1728 | break; |
1729 | ||
1730 | case 8: | |
1731 | psxHu32ref(0x1060) = SWAP32(new | 0x300); | |
1732 | psxMu32ref(0x060) = a0; | |
2bbcfe6b | 1733 | PSXBIOS_LOG("Change effective memory : %d MBytes\n",a0); |
8ec1e4de | 1734 | |
ef79bbde | 1735 | default: |
2bbcfe6b | 1736 | PSXBIOS_LOG("Effective memory must be 2/8 MBytes\n"); |
ef79bbde P |
1737 | break; |
1738 | } | |
1739 | ||
1740 | pc0 = ra; | |
1741 | } | |
1742 | ||
18dd7e9e | 1743 | /* TODO FIXME : Not compliant. -1 indicates failure but using 1 for now. */ |
9ca104f3 | 1744 | static void psxBios_get_cd_status() // a6 |
18dd7e9e | 1745 | { |
9ca104f3 | 1746 | PSXBIOS_LOG("psxBios_%s\n", biosA0n[0xa6]); |
18dd7e9e | 1747 | v0 = 1; |
1748 | pc0 = ra; | |
1749 | } | |
1750 | ||
9ca104f3 | 1751 | static void psxBios__card_info() { // ab |
ef79bbde | 1752 | PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xab], a0); |
8ec1e4de | 1753 | u32 ret, port; |
9ca104f3 | 1754 | storeRam32(A_CARD_CHAN1, a0); |
1755 | port = a0 >> 4; | |
5bf56268 | 1756 | |
1757 | switch (port) { | |
1758 | case 0x0: | |
1759 | case 0x1: | |
1fe066c6 | 1760 | ret = 0x0004; |
5bf56268 | 1761 | if (McdDisable[port & 1]) |
1fe066c6 | 1762 | ret = 0x0100; |
5bf56268 | 1763 | break; |
1764 | default: | |
9ca104f3 | 1765 | PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], a0); |
1fe066c6 | 1766 | ret = 0x0302; |
5bf56268 | 1767 | break; |
1768 | } | |
1769 | ||
1770 | if (McdDisable[0] && McdDisable[1]) | |
1fe066c6 | 1771 | ret = 0x0100; |
e9fda093 | 1772 | |
1fe066c6 | 1773 | DeliverEvent(0xf0000011, 0x0004); |
1774 | // DeliverEvent(0xf4000001, 0x0004); | |
1775 | DeliverEvent(0xf4000001, ret); | |
ef79bbde P |
1776 | v0 = 1; pc0 = ra; |
1777 | } | |
1778 | ||
1779 | void psxBios__card_load() { // ac | |
1780 | #ifdef PSXBIOS_LOG | |
1781 | PSXBIOS_LOG("psxBios_%s: %x\n", biosA0n[0xac], a0); | |
1782 | #endif | |
1783 | ||
9ca104f3 | 1784 | storeRam32(A_CARD_CHAN1, a0); |
e9fda093 | 1785 | |
1fe066c6 | 1786 | // DeliverEvent(0xf0000011, 0x0004); |
1787 | DeliverEvent(0xf4000001, 0x0004); | |
ef79bbde P |
1788 | |
1789 | v0 = 1; pc0 = ra; | |
1790 | } | |
1791 | ||
2bbcfe6b | 1792 | static void psxBios_GetSystemInfo() { // b4 |
1793 | u32 ret = 0; | |
1794 | //PSXBIOS_LOG("psxBios_%s %x\n", biosA0n[0xb4], a0); | |
1795 | SysPrintf("psxBios_%s %x\n", biosA0n[0xb4], a0); | |
1796 | switch (a0) { | |
1797 | case 0: | |
1798 | case 1: ret = SWAP32(((u32 *)psxR)[0x100/4 + a0]); break; | |
1799 | case 2: ret = 0xbfc0012c; break; | |
1800 | case 5: ret = loadRam32(0x60) << 10; break; | |
1801 | } | |
1802 | mips_return_c(ret, 20); | |
1803 | } | |
1804 | ||
ef79bbde P |
1805 | /* System calls B0 */ |
1806 | ||
3807a976 | 1807 | static u32 psxBios_SysMalloc_(u32 size); |
1808 | ||
1809 | static void psxBios_SysMalloc() { // B 00 | |
1810 | u32 ret = psxBios_SysMalloc_(a0); | |
1811 | ||
1812 | PSXBIOS_LOG("psxBios_%s 0x%x -> %x\n", biosB0n[0x00], a0, ret); | |
1813 | mips_return_c(ret, 33); | |
1814 | } | |
1815 | ||
ef79bbde P |
1816 | void psxBios_SetRCnt() { // 02 |
1817 | #ifdef PSXBIOS_LOG | |
1818 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x02]); | |
1819 | #endif | |
1820 | ||
1821 | a0&= 0x3; | |
1822 | if (a0 != 3) { | |
1823 | u32 mode=0; | |
1824 | ||
1825 | psxRcntWtarget(a0, a1); | |
1826 | if (a2&0x1000) mode|= 0x050; // Interrupt Mode | |
1827 | if (a2&0x0100) mode|= 0x008; // Count to 0xffff | |
1828 | if (a2&0x0010) mode|= 0x001; // Timer stop mode | |
1829 | if (a0 == 2) { if (a2&0x0001) mode|= 0x200; } // System Clock mode | |
1830 | else { if (a2&0x0001) mode|= 0x100; } // System Clock mode | |
1831 | ||
1832 | psxRcntWmode(a0, mode); | |
1833 | } | |
1834 | pc0 = ra; | |
1835 | } | |
1836 | ||
1837 | void psxBios_GetRCnt() { // 03 | |
1838 | #ifdef PSXBIOS_LOG | |
1839 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x03]); | |
1840 | #endif | |
1841 | ||
1842 | a0&= 0x3; | |
1843 | if (a0 != 3) v0 = psxRcntRcount(a0); | |
1844 | else v0 = 0; | |
1845 | pc0 = ra; | |
1846 | } | |
1847 | ||
1848 | void psxBios_StartRCnt() { // 04 | |
1849 | #ifdef PSXBIOS_LOG | |
1850 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x04]); | |
1851 | #endif | |
1852 | ||
1853 | a0&= 0x3; | |
1854 | if (a0 != 3) psxHu32ref(0x1074)|= SWAP32((u32)((1<<(a0+4)))); | |
1855 | else psxHu32ref(0x1074)|= SWAPu32(0x1); | |
1856 | v0 = 1; pc0 = ra; | |
1857 | } | |
1858 | ||
1859 | void psxBios_StopRCnt() { // 05 | |
1860 | #ifdef PSXBIOS_LOG | |
1861 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x05]); | |
1862 | #endif | |
1863 | ||
1864 | a0&= 0x3; | |
1865 | if (a0 != 3) psxHu32ref(0x1074)&= SWAP32((u32)(~(1<<(a0+4)))); | |
1866 | else psxHu32ref(0x1074)&= SWAPu32(~0x1); | |
1867 | pc0 = ra; | |
1868 | } | |
1869 | ||
1870 | void psxBios_ResetRCnt() { // 06 | |
1871 | #ifdef PSXBIOS_LOG | |
1872 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x06]); | |
1873 | #endif | |
1874 | ||
1875 | a0&= 0x3; | |
1876 | if (a0 != 3) { | |
1877 | psxRcntWmode(a0, 0); | |
1878 | psxRcntWtarget(a0, 0); | |
1879 | psxRcntWcount(a0, 0); | |
1880 | } | |
1881 | pc0 = ra; | |
1882 | } | |
1883 | ||
1fe066c6 | 1884 | static u32 DeliverEvent(u32 class, u32 spec) { |
1885 | EvCB *ev = (EvCB *)loadRam32ptr(A_TT_EvCB); | |
1886 | u32 evcb_len = loadRam32(A_TT_EvCB + 4); | |
1887 | u32 ret = loadRam32(A_TT_EvCB) + evcb_len; | |
1888 | u32 i, lim = evcb_len / 0x1c; | |
ef79bbde | 1889 | |
52cf8a87 | 1890 | //printf("%s %08x %x\n", __func__, class, spec); |
1fe066c6 | 1891 | for (i = 0; i < lim; i++, ev++) { |
1892 | use_cycles(8); | |
1893 | if (SWAP32(ev->status) != EvStACTIVE) | |
1894 | continue; | |
1895 | use_cycles(4); | |
1896 | if (SWAP32(ev->class) != class) | |
1897 | continue; | |
1898 | use_cycles(4); | |
1899 | if (SWAP32(ev->spec) != spec) | |
1900 | continue; | |
1901 | use_cycles(6); | |
1902 | ret = SWAP32(ev->mode); | |
1903 | if (ret == EvMdMARK) { | |
1904 | ev->status = SWAP32(EvStALREADY); | |
1905 | continue; | |
1906 | } | |
1907 | use_cycles(8); | |
1908 | if (ret == EvMdCALL) { | |
1909 | ret = SWAP32(ev->fhandler); | |
1910 | if (ret) { | |
1911 | v0 = ret; | |
1912 | softCall(ret); | |
1913 | ret = v0; | |
1914 | } | |
1915 | } | |
ef79bbde | 1916 | } |
1fe066c6 | 1917 | use_cycles(29); |
1918 | return ret; | |
1919 | } | |
ef79bbde | 1920 | |
1fe066c6 | 1921 | static u32 UnDeliverEvent(u32 class, u32 spec) { |
1922 | EvCB *ev = (EvCB *)loadRam32ptr(A_TT_EvCB); | |
1923 | u32 evcb_len = loadRam32(A_TT_EvCB + 4); | |
1924 | u32 ret = loadRam32(A_TT_EvCB) + evcb_len; | |
1925 | u32 i, lim = evcb_len / 0x1c; | |
ef79bbde | 1926 | |
1fe066c6 | 1927 | for (i = 0; i < lim; i++, ev++) { |
1928 | use_cycles(8); | |
1929 | if (SWAP32(ev->status) != EvStALREADY) | |
1930 | continue; | |
1931 | use_cycles(4); | |
1932 | if (SWAP32(ev->class) != class) | |
1933 | continue; | |
1934 | use_cycles(4); | |
1935 | if (SWAP32(ev->spec) != spec) | |
1936 | continue; | |
1937 | use_cycles(6); | |
1938 | if (SWAP32(ev->mode) == EvMdMARK) | |
1939 | ev->status = SWAP32(EvStACTIVE); | |
1940 | } | |
1941 | use_cycles(28); | |
1942 | return ret; | |
ef79bbde P |
1943 | } |
1944 | ||
1fe066c6 | 1945 | static void psxBios_DeliverEvent() { // 07 |
1946 | u32 ret; | |
1947 | PSXBIOS_LOG("psxBios_%s %x %04x\n", biosB0n[0x07], a0, a1); | |
ef79bbde | 1948 | |
1fe066c6 | 1949 | ret = DeliverEvent(a0, a1); |
1950 | mips_return(ret); | |
1951 | } | |
ef79bbde | 1952 | |
1fe066c6 | 1953 | static s32 get_free_EvCB_slot() { |
1954 | EvCB *ev = (EvCB *)loadRam32ptr(A_TT_EvCB); | |
1955 | u32 i, lim = loadRam32(A_TT_EvCB + 4) / 0x1c; | |
ef79bbde | 1956 | |
1fe066c6 | 1957 | use_cycles(19); |
1958 | for (i = 0; i < lim; i++, ev++) { | |
1959 | use_cycles(8); | |
1960 | if (ev->status == SWAP32(EvStUNUSED)) | |
1961 | return i; | |
1962 | } | |
1963 | return -1; | |
ef79bbde P |
1964 | } |
1965 | ||
1fe066c6 | 1966 | static u32 OpenEvent(u32 class, u32 spec, u32 mode, u32 func) { |
1967 | u32 ret = get_free_EvCB_slot(); | |
1968 | if ((s32)ret >= 0) { | |
1969 | EvCB *ev = (EvCB *)loadRam32ptr(A_TT_EvCB) + ret; | |
1970 | ev->class = SWAP32(class); | |
1971 | ev->status = SWAP32(EvStDISABLED); | |
1972 | ev->spec = SWAP32(spec); | |
1973 | ev->mode = SWAP32(mode); | |
1974 | ev->fhandler = SWAP32(func); | |
1975 | ret |= 0xf1000000u; | |
1976 | } | |
1977 | return ret; | |
1978 | } | |
ef79bbde | 1979 | |
1fe066c6 | 1980 | static void psxBios_OpenEvent() { // 08 |
1981 | u32 ret = OpenEvent(a0, a1, a2, a3); | |
1982 | PSXBIOS_LOG("psxBios_%s (class:%x, spec:%04x, mode:%04x, func:%x) -> %x\n", | |
1983 | biosB0n[0x08], a0, a1, a2, a3, ret); | |
1984 | mips_return_c(ret, 36); | |
1985 | } | |
ef79bbde | 1986 | |
1fe066c6 | 1987 | static void CloseEvent(u32 ev) |
1988 | { | |
1989 | u32 base = loadRam32(A_TT_EvCB); | |
1990 | storeRam32(base + (ev & 0xffff) * sizeof(EvCB) + 4, EvStUNUSED); | |
1991 | } | |
ef79bbde | 1992 | |
1fe066c6 | 1993 | static void psxBios_CloseEvent() { // 09 |
1994 | PSXBIOS_LOG("psxBios_%s %x (%x)\n", biosB0n[0x09], a0, | |
1995 | loadRam32(loadRam32(A_TT_EvCB) + (a0 & 0xffff) * sizeof(EvCB) + 4)); | |
1996 | CloseEvent(a0); | |
1997 | mips_return_c(1, 10); | |
ef79bbde P |
1998 | } |
1999 | ||
1fe066c6 | 2000 | static void psxBios_WaitEvent() { // 0a |
2001 | u32 base = loadRam32(A_TT_EvCB); | |
2002 | u32 status = loadRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4); | |
2003 | PSXBIOS_LOG("psxBios_%s %x (status=%x)\n", biosB0n[0x0a], a0, status); | |
ef79bbde | 2004 | |
1fe066c6 | 2005 | use_cycles(15); |
2006 | if (status == EvStALREADY) { | |
2007 | storeRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4, EvStACTIVE); | |
2008 | mips_return(1); | |
d95c9dcb | 2009 | return; |
2010 | } | |
1fe066c6 | 2011 | if (status != EvStACTIVE) |
d95c9dcb | 2012 | { |
1fe066c6 | 2013 | mips_return_c(0, 2); |
d95c9dcb | 2014 | return; |
2015 | } | |
ef79bbde | 2016 | |
1fe066c6 | 2017 | // retrigger this hlecall after the next emulation event |
2018 | pc0 -= 4; | |
2019 | if ((s32)(next_interupt - psxRegs.cycle) > 0) | |
2020 | psxRegs.cycle = next_interupt; | |
2021 | psxBranchTest(); | |
ef79bbde P |
2022 | } |
2023 | ||
1fe066c6 | 2024 | static void psxBios_TestEvent() { // 0b |
2025 | u32 base = loadRam32(A_TT_EvCB); | |
2026 | u32 status = loadRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4); | |
2027 | u32 ret = 0; | |
2028 | PSXBIOS_LOG("psxBios_%s %x %x\n", biosB0n[0x0b], a0, status); | |
2029 | if (status == EvStALREADY) { | |
2030 | storeRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4, EvStACTIVE); | |
2031 | ret = 1; | |
b4ae2532 | 2032 | } |
ef79bbde | 2033 | |
1fe066c6 | 2034 | mips_return_c(ret, 15); |
ef79bbde P |
2035 | } |
2036 | ||
1fe066c6 | 2037 | static void psxBios_EnableEvent() { // 0c |
2038 | u32 base = loadRam32(A_TT_EvCB); | |
2039 | u32 status = loadRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4); | |
2040 | PSXBIOS_LOG("psxBios_%s %x (%x)\n", biosB0n[0x0c], a0, status); | |
2041 | if (status != EvStUNUSED) | |
2042 | storeRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4, EvStACTIVE); | |
ef79bbde | 2043 | |
1fe066c6 | 2044 | mips_return_c(1, 15); |
ef79bbde P |
2045 | } |
2046 | ||
1fe066c6 | 2047 | static void psxBios_DisableEvent() { // 0d |
2048 | u32 base = loadRam32(A_TT_EvCB); | |
2049 | u32 status = loadRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4); | |
2050 | PSXBIOS_LOG("psxBios_%s %x: %x\n", biosB0n[0x0d], a0, status); | |
2051 | if (status != EvStUNUSED) | |
2052 | storeRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4, EvStDISABLED); | |
ef79bbde | 2053 | |
1fe066c6 | 2054 | mips_return_c(1, 15); |
ef79bbde P |
2055 | } |
2056 | ||
2057 | /* | |
2058 | * long OpenTh(long (*func)(), unsigned long sp, unsigned long gp); | |
2059 | */ | |
2060 | ||
2061 | void psxBios_OpenTh() { // 0e | |
9415f066 | 2062 | TCB *tcb = loadRam32ptr(A_TT_TCB); |
2063 | u32 limit = loadRam32(A_TT_TCB + 4) / 0xc0u; | |
ef79bbde P |
2064 | int th; |
2065 | ||
9415f066 | 2066 | for (th = 1; th < limit; th++) |
a66d3058 | 2067 | { |
9415f066 | 2068 | if (tcb[th].status != SWAP32(0x4000)) break; |
ef79bbde | 2069 | |
a66d3058 | 2070 | } |
9415f066 | 2071 | if (th == limit) { |
a66d3058 | 2072 | // Feb 2019 - Added out-of-bounds fix caught by cppcheck: |
2073 | // When no free TCB is found, return 0xffffffff according to Nocash doc. | |
2074 | #ifdef PSXBIOS_LOG | |
2075 | PSXBIOS_LOG("\t%s() WARNING! No Free TCBs found!\n", __func__); | |
2076 | #endif | |
9415f066 | 2077 | mips_return_c(0xffffffff, 20); |
a66d3058 | 2078 | return; |
2079 | } | |
ef79bbde | 2080 | PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0e], th); |
ef79bbde | 2081 | |
9415f066 | 2082 | tcb[th].status = SWAP32(0x4000); |
2083 | tcb[th].mode = SWAP32(0x1000); | |
2084 | tcb[th].epc = SWAP32(a0); | |
2085 | tcb[th].reg[30] = SWAP32(a1); // fp | |
2086 | tcb[th].reg[29] = SWAP32(a1); // sp | |
2087 | tcb[th].reg[28] = SWAP32(a2); // gp | |
ef79bbde | 2088 | |
9415f066 | 2089 | mips_return_c(0xff000000 + th, 34); |
ef79bbde P |
2090 | } |
2091 | ||
2092 | /* | |
2093 | * int CloseTh(long thread); | |
2094 | */ | |
2095 | ||
2096 | void psxBios_CloseTh() { // 0f | |
9415f066 | 2097 | TCB *tcb = loadRam32ptr(A_TT_TCB); |
2098 | u32 limit = loadRam32(A_TT_TCB + 4) / 0xc0u; | |
2099 | u32 th = a0 & 0xff; | |
ef79bbde P |
2100 | |
2101 | #ifdef PSXBIOS_LOG | |
2102 | PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x0f], th); | |
2103 | #endif | |
9ee77db1 | 2104 | /* The return value is always 1 (even if the handle was already closed). */ |
2105 | v0 = 1; | |
9415f066 | 2106 | if (th < limit && tcb[th].status == SWAP32(0x4000)) { |
2107 | tcb[th].status = SWAP32(0x1000); | |
ef79bbde P |
2108 | } |
2109 | ||
2110 | pc0 = ra; | |
2111 | } | |
2112 | ||
2113 | /* | |
2114 | * int ChangeTh(long thread); | |
2115 | */ | |
2116 | ||
2117 | void psxBios_ChangeTh() { // 10 | |
9415f066 | 2118 | u32 tcbBase = loadRam32(A_TT_TCB); |
2119 | u32 th = a0 & 0xffff; | |
ef79bbde | 2120 | |
2bbcfe6b | 2121 | // this is quite spammy |
2122 | //PSXBIOS_LOG("psxBios_%s %x\n", biosB0n[0x10], th); | |
2123 | ||
9415f066 | 2124 | // without doing any argument checks, just issue a syscall |
2125 | // (like the real bios does) | |
2126 | a0 = 3; | |
2127 | a1 = tcbBase + th * sizeof(TCB); | |
2128 | pc0 = A_SYSCALL; | |
2129 | use_cycles(15); | |
ef79bbde P |
2130 | } |
2131 | ||
2132 | void psxBios_InitPAD() { // 0x12 | |
340addc5 | 2133 | u32 i, *ram32 = (u32 *)psxM; |
2134 | PSXBIOS_LOG("psxBios_%s %x %x %x %x\n", biosB0n[0x12], a0, a1, a2, a3); | |
2135 | ||
2136 | // printf("%s", "PS-X Control PAD Driver Ver 3.0"); | |
e2f9c5e9 | 2137 | ram32[A_PAD_DR_DST/4] = 0; |
340addc5 | 2138 | ram32[A_PAD_OUTBUF/4 + 0] = 0; |
2139 | ram32[A_PAD_OUTBUF/4 + 1] = 0; | |
2140 | ram32[A_PAD_OUT_LEN/4 + 0] = 0; | |
2141 | ram32[A_PAD_OUT_LEN/4 + 1] = 0; | |
2142 | ram32[A_PAD_INBUF/4 + 0] = SWAP32(a0); | |
2143 | ram32[A_PAD_INBUF/4 + 1] = SWAP32(a2); | |
2144 | ram32[A_PAD_IN_LEN/4 + 0] = SWAP32(a1); | |
2145 | ram32[A_PAD_IN_LEN/4 + 1] = SWAP32(a3); | |
2146 | ||
2147 | for (i = 0; i < a1; i++) { | |
2148 | use_cycles(4); | |
2149 | storeRam8(a0 + i, 0); | |
2150 | } | |
2151 | for (i = 0; i < a3; i++) { | |
2152 | use_cycles(4); | |
2153 | storeRam8(a2 + i, 0); | |
2154 | } | |
2155 | write_chain(ram32 + A_PADCRD_CHN_E/4, 0, 0x49bc, 0x4a4c); | |
ef79bbde | 2156 | |
340addc5 | 2157 | ram32[A_PAD_IRQR_ENA/4] = SWAP32(1); |
ef79bbde | 2158 | |
340addc5 | 2159 | mips_return_c(1, 200); |
ef79bbde P |
2160 | } |
2161 | ||
2162 | void psxBios_StartPAD() { // 13 | |
ef79bbde | 2163 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x13]); |
340addc5 | 2164 | |
2165 | psxBios_SysDeqIntRP_(2, A_PADCRD_CHN_E); | |
2166 | psxBios_SysEnqIntRP_(2, A_PADCRD_CHN_E); | |
2167 | psxHwWrite16(0x1f801070, ~1); | |
2168 | psxHwWrite16(0x1f801074, psxHu32(0x1074) | 1); | |
2169 | storeRam32(A_PAD_ACK_VBL, 1); | |
2170 | storeRam32(A_RCNT_VBL_ACK + (3 << 2), 0); | |
6d79a06f | 2171 | psxRegs.CP0.n.SR |= 0x401; |
340addc5 | 2172 | |
2173 | mips_return_c(1, 300); | |
ef79bbde P |
2174 | } |
2175 | ||
2176 | void psxBios_StopPAD() { // 14 | |
ef79bbde | 2177 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x14]); |
340addc5 | 2178 | storeRam32(A_RCNT_VBL_ACK + (3 << 2), 1); |
2179 | psxBios_SysDeqIntRP_(2, A_PADCRD_CHN_E); | |
2180 | psxRegs.CP0.n.SR |= 0x401; | |
2181 | mips_return_void_c(200); | |
ef79bbde P |
2182 | } |
2183 | ||
e2f9c5e9 | 2184 | static void psxBios_PAD_init() { // 15 |
2185 | u32 ret = 0; | |
ef79bbde | 2186 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x15]); |
e2f9c5e9 | 2187 | if (a0 == 0x20000000 || a0 == 0x20000001) |
a824e83d | 2188 | { |
e2f9c5e9 | 2189 | u32 dst = a1; |
2190 | a0 = A_PAD_DR_BUF1; a1 = 0x22; | |
2191 | a2 = A_PAD_DR_BUF2; a3 = 0x22; | |
2192 | psxBios_InitPAD(); | |
2193 | psxBios_StartPAD(); | |
2194 | storeRam32(A_PAD_DR_DST, dst); | |
2195 | ret = 2; | |
2196 | } | |
2197 | mips_return_c(ret, 100); | |
2198 | } | |
2199 | ||
2200 | static u32 psxBios_PAD_dr_() { | |
2201 | u8 *dst = loadRam32ptr(A_PAD_DR_DST); | |
2202 | u8 *buf1 = castRam8ptr(A_PAD_DR_BUF1); | |
2203 | u8 *buf2 = castRam8ptr(A_PAD_DR_BUF2); | |
2204 | dst[0] = dst[1] = dst[2] = dst[3] = ~0; | |
2205 | if (buf1[0] == 0 && (buf1[1] == 0x23 || buf1[1] == 0x41)) | |
2206 | { | |
2207 | dst[0] = buf1[3], dst[1] = buf1[2]; | |
2208 | if (buf1[1] == 0x23) { | |
2209 | dst[0] |= 0xc7, dst[1] |= 7; | |
2210 | if (buf1[5] >= 0x10) dst[0] &= ~(1u << 6); | |
2211 | if (buf1[6] >= 0x10) dst[0] &= ~(1u << 7); | |
2212 | } | |
a824e83d | 2213 | } |
e2f9c5e9 | 2214 | if (buf2[0] == 0 && (buf2[1] == 0x23 || buf2[1] == 0x41)) |
2215 | { | |
2216 | dst[2] = buf2[3], dst[3] = buf2[2]; | |
2217 | if (buf2[1] == 0x23) { | |
2218 | dst[2] |= 0xc7, dst[3] |= 7; | |
2219 | if (buf2[5] >= 0x10) dst[2] &= ~(1u << 6); | |
2220 | if (buf2[6] >= 0x10) dst[2] &= ~(1u << 7); | |
2221 | } | |
2222 | } | |
2223 | use_cycles(55); | |
2224 | return SWAP32(*(u32 *)dst); | |
ef79bbde P |
2225 | } |
2226 | ||
e2f9c5e9 | 2227 | static void psxBios_PAD_dr() { // 16 |
ef79bbde | 2228 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x16]); |
e2f9c5e9 | 2229 | u32 ret = psxBios_PAD_dr_(); |
2230 | mips_return(ret); | |
ef79bbde P |
2231 | } |
2232 | ||
9415f066 | 2233 | static void psxBios_ReturnFromException() { // 17 |
2234 | u32 tcbPtr = loadRam32(A_TT_PCB); | |
2235 | const TCB *tcb = loadRam32ptr(tcbPtr); | |
2bbcfe6b | 2236 | u32 sr; |
9415f066 | 2237 | int i; |
2238 | ||
2239 | for (i = 1; i < 32; i++) | |
2240 | psxRegs.GPR.r[i] = SWAP32(tcb->reg[i]); | |
2241 | psxRegs.GPR.n.lo = SWAP32(tcb->lo); | |
2242 | psxRegs.GPR.n.hi = SWAP32(tcb->hi); | |
2bbcfe6b | 2243 | sr = SWAP32(tcb->sr); |
ef79bbde | 2244 | |
9415f066 | 2245 | //printf("%s %08x->%08x %u\n", __func__, pc0, tcb->epc, psxRegs.cycle); |
2246 | pc0 = k0 = SWAP32(tcb->epc); | |
ef79bbde | 2247 | |
2bbcfe6b | 2248 | // the interpreter wants to know about sr changes, so do a MTC0 |
2249 | sr = (sr & ~0x0f) | ((sr & 0x3c) >> 2); | |
2250 | MTC0(&psxRegs, 12, sr); | |
2251 | ||
9415f066 | 2252 | use_cycles(53); |
2253 | psxBranchTest(); | |
ef79bbde P |
2254 | } |
2255 | ||
2256 | void psxBios_ResetEntryInt() { // 18 | |
ef79bbde | 2257 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x18]); |
ef79bbde | 2258 | |
9415f066 | 2259 | storeRam32(A_EEXIT_PTR, A_EEXIT_DEF); |
2260 | mips_return_void_c(5); | |
ef79bbde P |
2261 | } |
2262 | ||
2263 | void psxBios_HookEntryInt() { // 19 | |
9415f066 | 2264 | PSXBIOS_LOG("psxBios_%s %x\n", biosB0n[0x19], a0); |
ef79bbde | 2265 | |
9415f066 | 2266 | storeRam32(A_EEXIT_PTR, a0); |
2267 | mips_return_void_c(3); | |
ef79bbde P |
2268 | } |
2269 | ||
1fe066c6 | 2270 | static void psxBios_UnDeliverEvent() { // 0x20 |
2271 | u32 ret; | |
2272 | PSXBIOS_LOG("psxBios_%s %x %x\n", biosB0n[0x20], a0, a1); | |
ef79bbde | 2273 | |
1fe066c6 | 2274 | ret = UnDeliverEvent(a0, a1); |
2275 | mips_return(ret); | |
ef79bbde P |
2276 | } |
2277 | ||
a6a44e96 | 2278 | static void buopen(int mcd, char *ptr, char *cfg) |
595a136b | 2279 | { |
2280 | int i; | |
a6a44e96 | 2281 | char *mcd_data = ptr; |
595a136b | 2282 | |
2283 | strcpy(FDesc[1 + mcd].name, Ra0+5); | |
2284 | FDesc[1 + mcd].offset = 0; | |
2285 | FDesc[1 + mcd].mode = a1; | |
2286 | ||
2287 | for (i=1; i<16; i++) { | |
a6a44e96 | 2288 | const char *fptr = mcd_data + 128 * i; |
595a136b | 2289 | if ((*fptr & 0xF0) != 0x50) continue; |
2290 | if (strcmp(FDesc[1 + mcd].name, fptr+0xa)) continue; | |
2291 | FDesc[1 + mcd].mcfile = i; | |
2bbcfe6b | 2292 | PSXBIOS_LOG("open %s\n", fptr+0xa); |
595a136b | 2293 | v0 = 1 + mcd; |
2294 | break; | |
2295 | } | |
2296 | if (a1 & 0x200 && v0 == -1) { /* FCREAT */ | |
595a136b | 2297 | for (i=1; i<16; i++) { |
2298 | int j, xor, nblk = a1 >> 16; | |
a6a44e96 | 2299 | char *pptr, *fptr2; |
2300 | char *fptr = mcd_data + 128 * i; | |
595a136b | 2301 | |
595a136b | 2302 | if ((*fptr & 0xF0) != 0xa0) continue; |
2303 | ||
2304 | FDesc[1 + mcd].mcfile = i; | |
2305 | fptr[0] = 0x51; | |
2306 | fptr[4] = 0x00; | |
2307 | fptr[5] = 0x20 * nblk; | |
2308 | fptr[6] = 0x00; | |
2309 | fptr[7] = 0x00; | |
2310 | strcpy(fptr+0xa, FDesc[1 + mcd].name); | |
2311 | pptr = fptr2 = fptr; | |
2312 | for(j=2; j<=nblk; j++) { | |
2313 | int k; | |
2314 | for(i++; i<16; i++) { | |
2315 | fptr2 += 128; | |
8ec1e4de | 2316 | |
595a136b | 2317 | memset(fptr2, 0, 128); |
2318 | fptr2[0] = j < nblk ? 0x52 : 0x53; | |
2319 | pptr[8] = i - 1; | |
2320 | pptr[9] = 0; | |
2321 | for (k=0, xor=0; k<127; k++) xor^= pptr[k]; | |
2322 | pptr[127] = xor; | |
2323 | pptr = fptr2; | |
2324 | break; | |
2325 | } | |
2326 | /* shouldn't this return ENOSPC if i == 16? */ | |
2327 | } | |
2328 | pptr[8] = pptr[9] = 0xff; | |
2329 | for (j=0, xor=0; j<127; j++) xor^= pptr[j]; | |
2330 | pptr[127] = xor; | |
2bbcfe6b | 2331 | PSXBIOS_LOG("openC %s %d\n", ptr, nblk); |
595a136b | 2332 | v0 = 1 + mcd; |
2333 | /* just go ahead and resave them all */ | |
2334 | SaveMcd(cfg, ptr, 128, 128 * 15); | |
2335 | break; | |
2336 | } | |
2337 | /* shouldn't this return ENOSPC if i == 16? */ | |
2338 | } | |
ef79bbde P |
2339 | } |
2340 | ||
2341 | /* | |
2342 | * int open(char *name , int mode); | |
2343 | */ | |
2344 | ||
2345 | void psxBios_open() { // 0x32 | |
02949f79 | 2346 | void *pa0 = Ra0; |
ef79bbde | 2347 | |
52cf8a87 | 2348 | PSXBIOS_LOG("psxBios_%s %s %x\n", biosB0n[0x32], Ra0, a1); |
ef79bbde P |
2349 | |
2350 | v0 = -1; | |
2351 | ||
b012a437 | 2352 | if (pa0 != INVALID_PTR) { |
02949f79 | 2353 | if (!strncmp(pa0, "bu00", 4)) { |
595a136b | 2354 | buopen(1, Mcd1Data, Config.Mcd1); |
02949f79 | 2355 | } |
ef79bbde | 2356 | |
02949f79 | 2357 | if (!strncmp(pa0, "bu10", 4)) { |
595a136b | 2358 | buopen(2, Mcd2Data, Config.Mcd2); |
02949f79 | 2359 | } |
ef79bbde P |
2360 | } |
2361 | ||
2362 | pc0 = ra; | |
2363 | } | |
2364 | ||
2365 | /* | |
2366 | * int lseek(int fd , int offset , int whence); | |
2367 | */ | |
2368 | ||
2369 | void psxBios_lseek() { // 0x33 | |
2370 | #ifdef PSXBIOS_LOG | |
2371 | PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x33], a0, a1, a2); | |
2372 | #endif | |
2373 | ||
2374 | switch (a2) { | |
2375 | case 0: // SEEK_SET | |
2376 | FDesc[a0].offset = a1; | |
2377 | v0 = a1; | |
1fe066c6 | 2378 | // DeliverEvent(0xf0000011, 0x0004); |
2379 | // DeliverEvent(0xf4000001, 0x0004); | |
ef79bbde P |
2380 | break; |
2381 | ||
2382 | case 1: // SEEK_CUR | |
2383 | FDesc[a0].offset+= a1; | |
2384 | v0 = FDesc[a0].offset; | |
2385 | break; | |
2386 | } | |
2387 | ||
2388 | pc0 = ra; | |
2389 | } | |
2390 | ||
ef79bbde P |
2391 | |
2392 | /* | |
2393 | * int read(int fd , void *buf , int nbytes); | |
2394 | */ | |
2395 | ||
2396 | void psxBios_read() { // 0x34 | |
2397 | char *ptr; | |
02949f79 | 2398 | void *pa1 = Ra1; |
ef79bbde P |
2399 | |
2400 | #ifdef PSXBIOS_LOG | |
2401 | PSXBIOS_LOG("psxBios_%s: %x, %x, %x\n", biosB0n[0x34], a0, a1, a2); | |
2402 | #endif | |
2403 | ||
2404 | v0 = -1; | |
2405 | ||
b012a437 | 2406 | if (pa1 != INVALID_PTR) { |
02949f79 | 2407 | switch (a0) { |
595a136b | 2408 | case 2: buread(pa1, 1, a2); break; |
2409 | case 3: buread(pa1, 2, a2); break; | |
02949f79 | 2410 | } |
ef79bbde | 2411 | } |
ef79bbde | 2412 | |
ef79bbde | 2413 | pc0 = ra; |
ef79bbde P |
2414 | } |
2415 | ||
2416 | /* | |
2417 | * int write(int fd , void *buf , int nbytes); | |
2418 | */ | |
2419 | ||
2420 | void psxBios_write() { // 0x35/0x03 | |
2421 | char *ptr; | |
02949f79 | 2422 | void *pa1 = Ra1; |
2423 | ||
2bbcfe6b | 2424 | if (a0 != 1) // stdout |
2425 | PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x35], a0, a1, a2); | |
02949f79 | 2426 | |
2427 | v0 = -1; | |
b012a437 | 2428 | if (pa1 == INVALID_PTR) { |
02949f79 | 2429 | pc0 = ra; |
2430 | return; | |
2431 | } | |
ef79bbde P |
2432 | |
2433 | if (a0 == 1) { // stdout | |
02949f79 | 2434 | char *ptr = pa1; |
ef79bbde | 2435 | |
02949f79 | 2436 | v0 = a2; |
2bbcfe6b | 2437 | if (Config.PsxOut) while (a2 > 0) { |
ef79bbde P |
2438 | SysPrintf("%c", *ptr++); a2--; |
2439 | } | |
2440 | pc0 = ra; return; | |
2441 | } | |
ef79bbde P |
2442 | |
2443 | switch (a0) { | |
595a136b | 2444 | case 2: buwrite(pa1, 1, a2); break; |
2445 | case 3: buwrite(pa1, 2, a2); break; | |
ef79bbde P |
2446 | } |
2447 | ||
2448 | pc0 = ra; | |
2449 | } | |
2450 | ||
c02b90b2 | 2451 | static void psxBios_write_psxout() { |
2452 | if (a0 == 1) { // stdout | |
2453 | const char *ptr = Ra1; | |
2454 | int len = a2; | |
2455 | ||
2456 | if (ptr != INVALID_PTR) | |
2457 | while (len-- > 0) | |
2458 | SysPrintf("%c", *ptr++); | |
2459 | } | |
2460 | } | |
2461 | ||
2462 | static void psxBios_putchar_psxout() { // 3d | |
2463 | SysPrintf("%c", (char)a0); | |
2464 | } | |
2465 | ||
2466 | static void psxBios_puts_psxout() { // 3e/3f | |
2467 | SysPrintf("%s", Ra0); | |
2468 | } | |
2469 | ||
ef79bbde P |
2470 | /* |
2471 | * int close(int fd); | |
2472 | */ | |
2473 | ||
2474 | void psxBios_close() { // 0x36 | |
2475 | #ifdef PSXBIOS_LOG | |
2476 | PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x36], a0); | |
2477 | #endif | |
2478 | ||
2479 | v0 = a0; | |
2480 | pc0 = ra; | |
2481 | } | |
2482 | ||
2483 | void psxBios_putchar() { // 3d | |
2bbcfe6b | 2484 | if (Config.PsxOut) SysPrintf("%c", (char)a0); |
ef79bbde P |
2485 | pc0 = ra; |
2486 | } | |
2487 | ||
2488 | void psxBios_puts() { // 3e/3f | |
2bbcfe6b | 2489 | if (Config.PsxOut) SysPrintf("%s", Ra0); |
ef79bbde P |
2490 | pc0 = ra; |
2491 | } | |
2492 | ||
f1514614 | 2493 | |
2494 | /* To avoid any issues with different behaviour when using the libc's own strlen instead. | |
2495 | * We want to mimic the PSX's behaviour in this case for bufile. */ | |
8ec1e4de | 2496 | static size_t strlen_internal(char* p) |
f1514614 | 2497 | { |
2498 | size_t size_of_array = 0; | |
2499 | while (*p++) size_of_array++; | |
2500 | return size_of_array; | |
2501 | } | |
ef79bbde P |
2502 | |
2503 | #define bufile(mcd) { \ | |
f1514614 | 2504 | size_t size_of_name = strlen_internal(dir->name); \ |
52cf8a87 | 2505 | v0 = 0; \ |
ef79bbde | 2506 | while (nfile < 16) { \ |
52cf8a87 | 2507 | char *pfile = ffile+5; \ |
ef79bbde P |
2508 | int match=1; \ |
2509 | \ | |
595a136b | 2510 | ptr = Mcd##mcd##Data + 128 * (nfile + 1); \ |
ef79bbde P |
2511 | nfile++; \ |
2512 | if ((*ptr & 0xF0) != 0x50) continue; \ | |
595a136b | 2513 | /* Bug link files show up as free block. */ \ |
2514 | if (!ptr[0xa]) continue; \ | |
ef79bbde P |
2515 | ptr+= 0xa; \ |
2516 | if (pfile[0] == 0) { \ | |
f1514614 | 2517 | strncpy(dir->name, ptr, sizeof(dir->name) - 1); \ |
2518 | if (size_of_name < sizeof(dir->name)) dir->name[size_of_name] = '\0'; \ | |
ef79bbde P |
2519 | } else for (i=0; i<20; i++) { \ |
2520 | if (pfile[i] == ptr[i]) { \ | |
595a136b | 2521 | dir->name[i] = ptr[i]; continue; } \ |
ef79bbde P |
2522 | if (pfile[i] == '?') { \ |
2523 | dir->name[i] = ptr[i]; continue; } \ | |
2524 | if (pfile[i] == '*') { \ | |
2525 | strcpy(dir->name+i, ptr+i); break; } \ | |
2526 | match = 0; break; \ | |
2527 | } \ | |
2bbcfe6b | 2528 | PSXBIOS_LOG("%d : %s = %s + %s (match=%d)\n", nfile, dir->name, pfile, ptr, match); \ |
595a136b | 2529 | if (match == 0) { continue; } \ |
ef79bbde P |
2530 | dir->size = 8192; \ |
2531 | v0 = _dir; \ | |
2532 | break; \ | |
2533 | } \ | |
2534 | } | |
2535 | ||
2536 | /* | |
2537 | * struct DIRENTRY* firstfile(char *name,struct DIRENTRY *dir); | |
2538 | */ | |
8ec1e4de | 2539 | |
52cf8a87 | 2540 | static void psxBios_firstfile() { // 42 |
2541 | struct DIRENTRY *dir = (struct DIRENTRY *)castRam8ptr(a1); | |
2542 | char *pa0 = castRam8ptr(a0); | |
ef79bbde P |
2543 | u32 _dir = a1; |
2544 | char *ptr; | |
2545 | int i; | |
2546 | ||
ef79bbde P |
2547 | v0 = 0; |
2548 | ||
52cf8a87 | 2549 | { |
2550 | snprintf(ffile, sizeof(ffile), "%s", pa0); | |
8f3b2bd3 | 2551 | nfile = 0; |
02949f79 | 2552 | if (!strncmp(pa0, "bu00", 4)) { |
857fabea | 2553 | // firstfile() calls _card_read() internally, so deliver it's event |
1fe066c6 | 2554 | DeliverEvent(0xf0000011, 0x0004); |
02949f79 | 2555 | bufile(1); |
2556 | } else if (!strncmp(pa0, "bu10", 4)) { | |
857fabea | 2557 | // firstfile() calls _card_read() internally, so deliver it's event |
1fe066c6 | 2558 | DeliverEvent(0xf0000011, 0x0004); |
02949f79 | 2559 | bufile(2); |
2560 | } | |
ef79bbde | 2561 | } |
52cf8a87 | 2562 | PSXBIOS_LOG("psxBios_%s %s %x -> %x\n", biosB0n[0x42], pa0, a1, v0); |
ef79bbde P |
2563 | |
2564 | pc0 = ra; | |
2565 | } | |
2566 | ||
2567 | /* | |
2568 | * struct DIRENTRY* nextfile(struct DIRENTRY *dir); | |
2569 | */ | |
2570 | ||
2571 | void psxBios_nextfile() { // 43 | |
2572 | struct DIRENTRY *dir = (struct DIRENTRY *)Ra0; | |
2573 | u32 _dir = a0; | |
2574 | char *ptr; | |
2575 | int i; | |
2576 | ||
ef79bbde P |
2577 | v0 = 0; |
2578 | ||
2579 | if (!strncmp(ffile, "bu00", 4)) { | |
2580 | bufile(1); | |
2581 | } | |
52cf8a87 | 2582 | else if (!strncmp(ffile, "bu10", 4)) { |
ef79bbde P |
2583 | bufile(2); |
2584 | } | |
52cf8a87 | 2585 | PSXBIOS_LOG("psxBios_%s %s -> %x\n", biosB0n[0x43], dir->name, v0); |
ef79bbde P |
2586 | |
2587 | pc0 = ra; | |
2588 | } | |
2589 | ||
2590 | #define burename(mcd) { \ | |
2591 | for (i=1; i<16; i++) { \ | |
2592 | int namelen, j, xor = 0; \ | |
2593 | ptr = Mcd##mcd##Data + 128 * i; \ | |
2594 | if ((*ptr & 0xF0) != 0x50) continue; \ | |
2595 | if (strcmp(Ra0+5, ptr+0xa)) continue; \ | |
2596 | namelen = strlen(Ra1+5); \ | |
2597 | memcpy(ptr+0xa, Ra1+5, namelen); \ | |
2598 | memset(ptr+0xa+namelen, 0, 0x75-namelen); \ | |
2599 | for (j=0; j<127; j++) xor^= ptr[j]; \ | |
2600 | ptr[127] = xor; \ | |
2601 | SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i + 0xa, 0x76); \ | |
2602 | v0 = 1; \ | |
2603 | break; \ | |
2604 | } \ | |
2605 | } | |
2606 | ||
2607 | /* | |
2608 | * int rename(char *old, char *new); | |
2609 | */ | |
2610 | ||
2611 | void psxBios_rename() { // 44 | |
02949f79 | 2612 | void *pa0 = Ra0; |
2613 | void *pa1 = Ra1; | |
ef79bbde P |
2614 | char *ptr; |
2615 | int i; | |
2616 | ||
2617 | #ifdef PSXBIOS_LOG | |
2618 | PSXBIOS_LOG("psxBios_%s: %s,%s\n", biosB0n[0x44], Ra0, Ra1); | |
2619 | #endif | |
2620 | ||
2621 | v0 = 0; | |
2622 | ||
b012a437 | 2623 | if (pa0 != INVALID_PTR && pa1 != INVALID_PTR) { |
02949f79 | 2624 | if (!strncmp(pa0, "bu00", 4) && !strncmp(pa1, "bu00", 4)) { |
2625 | burename(1); | |
2626 | } | |
ef79bbde | 2627 | |
02949f79 | 2628 | if (!strncmp(pa0, "bu10", 4) && !strncmp(pa1, "bu10", 4)) { |
2629 | burename(2); | |
2630 | } | |
ef79bbde P |
2631 | } |
2632 | ||
2633 | pc0 = ra; | |
2634 | } | |
2635 | ||
2636 | ||
2637 | #define budelete(mcd) { \ | |
2638 | for (i=1; i<16; i++) { \ | |
2639 | ptr = Mcd##mcd##Data + 128 * i; \ | |
2640 | if ((*ptr & 0xF0) != 0x50) continue; \ | |
2641 | if (strcmp(Ra0+5, ptr+0xa)) continue; \ | |
2642 | *ptr = (*ptr & 0xf) | 0xA0; \ | |
2643 | SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, 128 * i, 1); \ | |
2bbcfe6b | 2644 | PSXBIOS_LOG("delete %s\n", ptr+0xa); \ |
ef79bbde P |
2645 | v0 = 1; \ |
2646 | break; \ | |
2647 | } \ | |
2648 | } | |
2649 | ||
2650 | /* | |
2651 | * int delete(char *name); | |
2652 | */ | |
2653 | ||
2654 | void psxBios_delete() { // 45 | |
02949f79 | 2655 | void *pa0 = Ra0; |
ef79bbde P |
2656 | char *ptr; |
2657 | int i; | |
2658 | ||
2659 | #ifdef PSXBIOS_LOG | |
2660 | PSXBIOS_LOG("psxBios_%s: %s\n", biosB0n[0x45], Ra0); | |
2661 | #endif | |
2662 | ||
2663 | v0 = 0; | |
2664 | ||
b012a437 | 2665 | if (pa0 != INVALID_PTR) { |
02949f79 | 2666 | if (!strncmp(pa0, "bu00", 4)) { |
2667 | budelete(1); | |
2668 | } | |
ef79bbde | 2669 | |
02949f79 | 2670 | if (!strncmp(pa0, "bu10", 4)) { |
2671 | budelete(2); | |
2672 | } | |
ef79bbde P |
2673 | } |
2674 | ||
2675 | pc0 = ra; | |
2676 | } | |
2677 | ||
2678 | void psxBios_InitCARD() { // 4a | |
340addc5 | 2679 | u32 *ram32 = (u32 *)psxM; |
ef79bbde | 2680 | PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0); |
340addc5 | 2681 | write_chain(ram32 + A_PADCRD_CHN_E/4, 0, 0x49bc, 0x4a4c); |
4ebf5791 | 2682 | // (maybe) todo: early_card_irq, etc |
ef79bbde | 2683 | |
340addc5 | 2684 | ram32[A_PAD_IRQR_ENA/4] = SWAP32(a0); |
2685 | ||
4ebf5791 | 2686 | psxBios_FlushCache(); |
2687 | mips_return_c(0, 34+13+15+6); | |
ef79bbde P |
2688 | } |
2689 | ||
2690 | void psxBios_StartCARD() { // 4b | |
ef79bbde | 2691 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]); |
340addc5 | 2692 | psxBios_SysDeqIntRP_(2, A_PADCRD_CHN_E); |
2693 | psxBios_SysEnqIntRP_(2, A_PADCRD_CHN_E); | |
ef79bbde | 2694 | |
340addc5 | 2695 | psxHwWrite16(0x1f801074, psxHu32(0x1074) | 1); |
2696 | storeRam32(A_PAD_ACK_VBL, 1); | |
2697 | storeRam32(A_RCNT_VBL_ACK + (3 << 2), 0); | |
2698 | storeRam32(A_CARD_IRQR_ENA, 1); | |
2699 | psxRegs.CP0.n.SR |= 0x401; | |
2700 | ||
2701 | mips_return_c(1, 200); | |
ef79bbde P |
2702 | } |
2703 | ||
2704 | void psxBios_StopCARD() { // 4c | |
ef79bbde | 2705 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]); |
340addc5 | 2706 | storeRam32(A_RCNT_VBL_ACK + (3 << 2), 1); |
2707 | psxBios_SysDeqIntRP_(2, A_PADCRD_CHN_E); | |
2708 | storeRam32(A_CARD_IRQR_ENA, 0); | |
2709 | psxRegs.CP0.n.SR |= 0x401; | |
2710 | mips_return_void_c(200); | |
ef79bbde P |
2711 | } |
2712 | ||
2713 | void psxBios__card_write() { // 0x4e | |
02949f79 | 2714 | void *pa2 = Ra2; |
ef79bbde P |
2715 | int port; |
2716 | ||
2717 | #ifdef PSXBIOS_LOG | |
2718 | PSXBIOS_LOG("psxBios_%s: %x,%x,%x\n", biosB0n[0x4e], a0, a1, a2); | |
2719 | #endif | |
1059caaf | 2720 | /* |
2721 | Function also accepts sector 400h (a bug). | |
2722 | But notaz said we shouldn't allow sector 400h because it can corrupt the emulator. | |
2723 | */ | |
2724 | if (!(a1 <= 0x3FF)) | |
bd48ba5e | 2725 | { |
2726 | /* Invalid sectors */ | |
2727 | v0 = 0; pc0 = ra; | |
2728 | return; | |
2729 | } | |
9ca104f3 | 2730 | storeRam32(A_CARD_CHAN1, a0); |
ef79bbde P |
2731 | port = a0 >> 4; |
2732 | ||
b012a437 | 2733 | if (pa2 != INVALID_PTR) { |
02949f79 | 2734 | if (port == 0) { |
2735 | memcpy(Mcd1Data + a1 * 128, pa2, 128); | |
2736 | SaveMcd(Config.Mcd1, Mcd1Data, a1 * 128, 128); | |
2737 | } else { | |
2738 | memcpy(Mcd2Data + a1 * 128, pa2, 128); | |
2739 | SaveMcd(Config.Mcd2, Mcd2Data, a1 * 128, 128); | |
2740 | } | |
ef79bbde P |
2741 | } |
2742 | ||
1fe066c6 | 2743 | DeliverEvent(0xf0000011, 0x0004); |
2744 | // DeliverEvent(0xf4000001, 0x0004); | |
ef79bbde P |
2745 | |
2746 | v0 = 1; pc0 = ra; | |
2747 | } | |
2748 | ||
2749 | void psxBios__card_read() { // 0x4f | |
02949f79 | 2750 | void *pa2 = Ra2; |
ef79bbde P |
2751 | int port; |
2752 | ||
2753 | #ifdef PSXBIOS_LOG | |
2754 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4f]); | |
2755 | #endif | |
1059caaf | 2756 | /* |
2757 | Function also accepts sector 400h (a bug). | |
2758 | But notaz said we shouldn't allow sector 400h because it can corrupt the emulator. | |
2759 | */ | |
2760 | if (!(a1 <= 0x3FF)) | |
bd48ba5e | 2761 | { |
2762 | /* Invalid sectors */ | |
2763 | v0 = 0; pc0 = ra; | |
2764 | return; | |
2765 | } | |
9ca104f3 | 2766 | storeRam32(A_CARD_CHAN1, a0); |
ef79bbde P |
2767 | port = a0 >> 4; |
2768 | ||
b012a437 | 2769 | if (pa2 != INVALID_PTR) { |
02949f79 | 2770 | if (port == 0) { |
2771 | memcpy(pa2, Mcd1Data + a1 * 128, 128); | |
2772 | } else { | |
2773 | memcpy(pa2, Mcd2Data + a1 * 128, 128); | |
2774 | } | |
ef79bbde P |
2775 | } |
2776 | ||
1fe066c6 | 2777 | DeliverEvent(0xf0000011, 0x0004); |
2778 | // DeliverEvent(0xf4000001, 0x0004); | |
ef79bbde P |
2779 | |
2780 | v0 = 1; pc0 = ra; | |
2781 | } | |
2782 | ||
2783 | void psxBios__new_card() { // 0x50 | |
2784 | #ifdef PSXBIOS_LOG | |
2785 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x50]); | |
2786 | #endif | |
2787 | ||
2788 | pc0 = ra; | |
2789 | } | |
2790 | ||
002b2f7d | 2791 | /* According to a user, this allows Final Fantasy Tactics to save/load properly */ |
2792 | void psxBios__get_error(void) // 55 | |
8ec1e4de | 2793 | { |
9415f066 | 2794 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x55]); |
002b2f7d | 2795 | v0 = 0; |
2796 | pc0 = ra; | |
2797 | } | |
2798 | ||
ef79bbde P |
2799 | void psxBios_Krom2RawAdd() { // 0x51 |
2800 | int i = 0; | |
2801 | ||
9415f066 | 2802 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x51]); |
ef79bbde P |
2803 | const u32 table_8140[][2] = { |
2804 | {0x8140, 0x0000}, {0x8180, 0x0762}, {0x81ad, 0x0cc6}, {0x81b8, 0x0ca8}, | |
2805 | {0x81c0, 0x0f00}, {0x81c8, 0x0d98}, {0x81cf, 0x10c2}, {0x81da, 0x0e6a}, | |
2806 | {0x81e9, 0x13ce}, {0x81f0, 0x102c}, {0x81f8, 0x1590}, {0x81fc, 0x111c}, | |
2807 | {0x81fd, 0x1626}, {0x824f, 0x113a}, {0x8259, 0x20ee}, {0x8260, 0x1266}, | |
2808 | {0x827a, 0x24cc}, {0x8281, 0x1572}, {0x829b, 0x28aa}, {0x829f, 0x187e}, | |
2809 | {0x82f2, 0x32dc}, {0x8340, 0x2238}, {0x837f, 0x4362}, {0x8380, 0x299a}, | |
2810 | {0x8397, 0x4632}, {0x839f, 0x2c4c}, {0x83b7, 0x49f2}, {0x83bf, 0x2f1c}, | |
2811 | {0x83d7, 0x4db2}, {0x8440, 0x31ec}, {0x8461, 0x5dde}, {0x8470, 0x35ca}, | |
2812 | {0x847f, 0x6162}, {0x8480, 0x378c}, {0x8492, 0x639c}, {0x849f, 0x39a8}, | |
2813 | {0xffff, 0} | |
2814 | }; | |
2815 | ||
2816 | const u32 table_889f[][2] = { | |
2817 | {0x889f, 0x3d68}, {0x8900, 0x40ec}, {0x897f, 0x4fb0}, {0x8a00, 0x56f4}, | |
2818 | {0x8a7f, 0x65b8}, {0x8b00, 0x6cfc}, {0x8b7f, 0x7bc0}, {0x8c00, 0x8304}, | |
2819 | {0x8c7f, 0x91c8}, {0x8d00, 0x990c}, {0x8d7f, 0xa7d0}, {0x8e00, 0xaf14}, | |
2820 | {0x8e7f, 0xbdd8}, {0x8f00, 0xc51c}, {0x8f7f, 0xd3e0}, {0x9000, 0xdb24}, | |
2821 | {0x907f, 0xe9e8}, {0x9100, 0xf12c}, {0x917f, 0xfff0}, {0x9200, 0x10734}, | |
2822 | {0x927f, 0x115f8}, {0x9300, 0x11d3c}, {0x937f, 0x12c00}, {0x9400, 0x13344}, | |
2823 | {0x947f, 0x14208}, {0x9500, 0x1494c}, {0x957f, 0x15810}, {0x9600, 0x15f54}, | |
2824 | {0x967f, 0x16e18}, {0x9700, 0x1755c}, {0x977f, 0x18420}, {0x9800, 0x18b64}, | |
2825 | {0xffff, 0} | |
2826 | }; | |
2827 | ||
2828 | if (a0 >= 0x8140 && a0 <= 0x84be) { | |
2829 | while (table_8140[i][0] <= a0) i++; | |
2830 | a0 -= table_8140[i - 1][0]; | |
2831 | v0 = 0xbfc66000 + (a0 * 0x1e + table_8140[i - 1][1]); | |
2832 | } else if (a0 >= 0x889f && a0 <= 0x9872) { | |
2833 | while (table_889f[i][0] <= a0) i++; | |
2834 | a0 -= table_889f[i - 1][0]; | |
2835 | v0 = 0xbfc66000 + (a0 * 0x1e + table_889f[i - 1][1]); | |
2836 | } else { | |
2837 | v0 = 0xffffffff; | |
2838 | } | |
2839 | ||
2840 | pc0 = ra; | |
2841 | } | |
2842 | ||
2843 | void psxBios_GetC0Table() { // 56 | |
ef79bbde | 2844 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x56]); |
9415f066 | 2845 | log_unhandled("GetC0Table @%08x\n", ra); |
ef79bbde | 2846 | |
9415f066 | 2847 | mips_return_c(A_C0_TABLE, 3); |
ef79bbde P |
2848 | } |
2849 | ||
2850 | void psxBios_GetB0Table() { // 57 | |
ef79bbde | 2851 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x57]); |
9415f066 | 2852 | log_unhandled("GetB0Table @%08x\n", ra); |
ef79bbde | 2853 | |
9415f066 | 2854 | mips_return_c(A_B0_TABLE, 3); |
ef79bbde P |
2855 | } |
2856 | ||
9ca104f3 | 2857 | static void psxBios__card_chan() { // 0x58 |
2858 | u32 ret; | |
e9fda093 | 2859 | PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x58]); |
e9fda093 | 2860 | |
9ca104f3 | 2861 | // todo: should return active slot chan |
2862 | // (active - which was last processed by irq code) | |
2863 | ret = loadRam32(A_CARD_CHAN1); | |
2864 | mips_return_c(ret, 8); | |
e9fda093 | 2865 | } |
2866 | ||
340addc5 | 2867 | static void psxBios_ChangeClearPad() { // 5b |
2868 | u32 ret; | |
ef79bbde | 2869 | PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x5b], a0); |
340addc5 | 2870 | ret = loadRam32(A_PAD_ACK_VBL); |
2871 | storeRam32(A_PAD_ACK_VBL, a0); | |
ef79bbde | 2872 | |
340addc5 | 2873 | mips_return_c(ret, 6); |
ef79bbde P |
2874 | } |
2875 | ||
9ca104f3 | 2876 | static void psxBios__card_status() { // 5c |
2877 | PSXBIOS_LOG("psxBios_%s %x\n", biosB0n[0x5c], a0); | |
872515f9 | 2878 | |
9ca104f3 | 2879 | v0 = 1; // ready |
21af3ff6 | 2880 | pc0 = ra; |
2881 | } | |
2882 | ||
9ca104f3 | 2883 | static void psxBios__card_wait() { // 5d |
2884 | PSXBIOS_LOG("psxBios_%s %x\n", biosB0n[0x5d], a0); | |
5f652aa9 | 2885 | |
9ca104f3 | 2886 | v0 = 1; // ready |
5f652aa9 | 2887 | pc0 = ra; |
872515f9 | 2888 | } |
2889 | ||
ef79bbde P |
2890 | /* System calls C0 */ |
2891 | ||
3807a976 | 2892 | static void psxBios_InitRCnt() { // 00 |
2893 | int i; | |
2894 | PSXBIOS_LOG("psxBios_%s %x\n", biosC0n[0x00], a0); | |
2895 | psxHwWrite16(0x1f801074, psxHu32(0x1074) & ~0x71); | |
2896 | for (i = 0; i < 3; i++) { | |
2897 | psxHwWrite16(0x1f801100 + i*0x10 + 4, 0); | |
2898 | psxHwWrite16(0x1f801100 + i*0x10 + 8, 0); | |
2899 | psxHwWrite16(0x1f801100 + i*0x10 + 0, 0); | |
2900 | } | |
340addc5 | 2901 | psxBios_SysEnqIntRP_(a0, 0x6d88); |
3807a976 | 2902 | mips_return_c(0, 9); |
2903 | } | |
2904 | ||
2905 | static void psxBios_InitException() { // 01 | |
2906 | PSXBIOS_LOG("psxBios_%s %x\n", biosC0n[0x01], a0); | |
340addc5 | 2907 | psxBios_SysEnqIntRP_(a0, 0x6da8); |
3807a976 | 2908 | mips_return_c(0, 9); |
2909 | } | |
2910 | ||
ef79bbde P |
2911 | /* |
2912 | * int SysEnqIntRP(int index , long *queue); | |
2913 | */ | |
2914 | ||
340addc5 | 2915 | static void psxBios_SysEnqIntRP_(u32 priority, u32 chain_eptr) { |
9415f066 | 2916 | u32 old, base = loadRam32(A_TT_ExCB); |
ef79bbde | 2917 | |
340addc5 | 2918 | old = loadRam32(base + (priority << 3)); |
2919 | storeRam32(base + (priority << 3), chain_eptr); | |
2920 | storeRam32(chain_eptr, old); | |
9415f066 | 2921 | mips_return_c(0, 9); |
ef79bbde P |
2922 | } |
2923 | ||
340addc5 | 2924 | static void psxBios_SysEnqIntRP() { // 02 |
2925 | PSXBIOS_LOG("psxBios_%s %x %x\n", biosC0n[0x02], a0, a1); | |
2926 | psxBios_SysEnqIntRP_(a0, a1); | |
2927 | } | |
2928 | ||
ef79bbde P |
2929 | /* |
2930 | * int SysDeqIntRP(int index , long *queue); | |
2931 | */ | |
2932 | ||
340addc5 | 2933 | static void psxBios_SysDeqIntRP_(u32 priority, u32 chain_rm_eptr) { |
9415f066 | 2934 | u32 ptr, next, base = loadRam32(A_TT_ExCB); |
2935 | u32 lim = 0, ret = 0; | |
2936 | ||
2937 | // as in original: no arg checks of any kind, bug if a1 == 0 | |
340addc5 | 2938 | ptr = loadRam32(base + (priority << 3)); |
9415f066 | 2939 | while (ptr) { |
2940 | next = loadRam32(ptr); | |
340addc5 | 2941 | if (ptr == chain_rm_eptr) { |
2942 | storeRam32(base + (priority << 3), next); | |
9415f066 | 2943 | ret = ptr; |
2944 | use_cycles(6); | |
2945 | break; | |
2946 | } | |
340addc5 | 2947 | while (next && next != chain_rm_eptr && lim++ < 100) { |
9415f066 | 2948 | ptr = next; |
2949 | next = loadRam32(ptr); | |
2950 | use_cycles(8); | |
2951 | } | |
340addc5 | 2952 | if (next == chain_rm_eptr) { |
9415f066 | 2953 | next = loadRam32(next); |
2954 | storeRam32(ptr, next); | |
2955 | ret = ptr; | |
2956 | use_cycles(6); | |
2957 | } | |
2958 | break; | |
2959 | } | |
2960 | if (lim == 100) | |
340addc5 | 2961 | PSXBIOS_LOG("bad chain %u %x\n", priority, base); |
ef79bbde | 2962 | |
9415f066 | 2963 | mips_return_c(ret, 12); |
2964 | } | |
ef79bbde | 2965 | |
9415f066 | 2966 | static void psxBios_SysDeqIntRP() { // 03 |
2967 | PSXBIOS_LOG("psxBios_%s %x %x\n", biosC0n[0x03], a0, a1); | |
340addc5 | 2968 | psxBios_SysDeqIntRP_(a0, a1); |
ef79bbde P |
2969 | } |
2970 | ||
1fe066c6 | 2971 | static void psxBios_get_free_EvCB_slot() { // 04 |
2972 | PSXBIOS_LOG("psxBios_%s\n", biosC0n[0x04]); | |
2973 | s32 ret = get_free_EvCB_slot(); | |
2974 | mips_return_c(ret, 0); | |
2975 | } | |
2976 | ||
3807a976 | 2977 | static void psxBios_SysInitMemory_(u32 base, u32 size) { |
2978 | storeRam32(base, 0); | |
2979 | storeRam32(A_KMALLOC_PTR, base); | |
2980 | storeRam32(A_KMALLOC_SIZE, size); | |
2981 | storeRam32(A_KMALLOC_END, base + (size & ~3) + 4); | |
2982 | } | |
2983 | ||
2984 | // this should be much more complicated, but maybe that'll be enough | |
2985 | static u32 psxBios_SysMalloc_(u32 size) { | |
2986 | u32 ptr = loadRam32(A_KMALLOC_PTR); | |
2987 | ||
2988 | size = (size + 3) & ~3; | |
2989 | storeRam32(A_KMALLOC_PTR, ptr + 4 + size); | |
2990 | storeRam32(ptr, size); | |
2991 | return ptr + 4; | |
2992 | } | |
2993 | ||
2994 | static void psxBios_SysInitMemory() { // 08 | |
2995 | PSXBIOS_LOG("psxBios_%s %x %x\n", biosC0n[0x08], a0, a1); | |
2996 | ||
2997 | psxBios_SysInitMemory_(a0, a1); | |
2998 | mips_return_void_c(12); | |
2999 | } | |
3000 | ||
3001 | static void psxBios_ChangeClearRCnt() { // 0a | |
9415f066 | 3002 | u32 ret; |
ef79bbde | 3003 | |
ef79bbde | 3004 | PSXBIOS_LOG("psxBios_%s: %x, %x\n", biosC0n[0x0a], a0, a1); |
ef79bbde | 3005 | |
9415f066 | 3006 | ret = loadRam32(A_RCNT_VBL_ACK + (a0 << 2)); |
3007 | storeRam32(A_RCNT_VBL_ACK + (a0 << 2), a1); | |
3008 | mips_return_c(ret, 8); | |
ef79bbde P |
3009 | } |
3010 | ||
3807a976 | 3011 | static void psxBios_InitDefInt() { // 0c |
3012 | PSXBIOS_LOG("psxBios_%s %x\n", biosC0n[0x0c], a0); | |
3013 | // should also clear the autoack table | |
340addc5 | 3014 | psxBios_SysEnqIntRP_(a0, 0x6d98); |
3807a976 | 3015 | mips_return_c(0, 20 + 6*2); |
3016 | } | |
3017 | ||
8ec1e4de | 3018 | void psxBios_dummy() { |
9415f066 | 3019 | u32 pc = (pc0 & 0x1fffff) - 4; |
3020 | char **ntab = pc == 0xa0 ? biosA0n : pc == 0xb0 ? biosB0n | |
3021 | : pc == 0xc0 ? biosC0n : NULL; | |
3022 | PSXBIOS_LOG("unk %x call: %x ra=%x (%s)\n", | |
3023 | pc, t1, ra, ntab ? ntab[t1 & 0xff] : "???"); | |
3024 | (void)pc; (void)ntab; | |
3025 | mips_return_c(0, 100); | |
ef79bbde P |
3026 | } |
3027 | ||
3028 | void (*biosA0[256])(); | |
9415f066 | 3029 | // C0 and B0 overlap (end of C0 is start of B0) |
3030 | void (*biosC0[256+128])(); | |
3031 | void (**biosB0)() = biosC0 + 128; | |
ef79bbde | 3032 | |
7575a4aa | 3033 | static void setup_mips_code() |
9415f066 | 3034 | { |
3035 | u32 *ptr; | |
3036 | ptr = (u32 *)&psxM[A_SYSCALL]; | |
3037 | ptr[0x00/4] = SWAPu32(0x0000000c); // syscall 0 | |
3038 | ptr[0x04/4] = SWAPu32(0x03e00008); // jr $ra | |
3039 | ptr[0x08/4] = SWAPu32(0x00000000); // nop | |
3040 | ||
3041 | ptr = (u32 *)&psxM[A_EXCEPTION]; | |
3042 | memset(ptr, 0, 0xc0); // nops (to be patched by games sometimes) | |
3043 | ptr[0x10/4] = SWAPu32(0x8c1a0108); // lw $k0, (0x108) // PCB | |
3044 | ptr[0x14/4] = SWAPu32(0x00000000); // nop | |
3045 | ptr[0x18/4] = SWAPu32(0x8f5a0000); // lw $k0, ($k0) // TCB | |
3046 | ptr[0x1c/4] = SWAPu32(0x00000000); // nop | |
3047 | ptr[0x20/4] = SWAPu32(0x275a0008); // addiu $k0, $k0, 8 // regs | |
3048 | ptr[0x24/4] = SWAPu32(0xaf5f007c); // sw $ra, 0x7c($k0) | |
3049 | ptr[0x28/4] = SWAPu32(0xaf410004); // sw $at, 0x04($k0) | |
3050 | ptr[0x2c/4] = SWAPu32(0xaf420008); // sw $v0, 0x08($k0) | |
3051 | ptr[0x30/4] = SWAPu32(0xaf43000c); // sw $v1, 0x0c($k0) | |
3052 | ||
3053 | ptr[0x60/4] = SWAPu32(0x40037000); // mfc0 $v1, EPC | |
3054 | ptr[0x64/4] = SWAPu32(0x40026800); // mfc0 $v0, Cause | |
9415f066 | 3055 | ptr[0x6c/4] = SWAPu32(0xaf430080); // sw $v1, 0x80($k0) |
3056 | ||
3057 | ptr[0xb0/4] = HLEOP(hleop_exception); | |
3058 | } | |
3059 | ||
3060 | static const struct { | |
3061 | u32 addr; | |
3062 | enum hle_op op; | |
3063 | } chainfns[] = { | |
3064 | { 0xbfc050a4, hleop_exc0_0_1 }, | |
3065 | { 0xbfc04fbc, hleop_exc0_0_2 }, | |
3066 | { 0xbfc0506c, hleop_exc0_1_1 }, | |
3067 | { 0xbfc04dec, hleop_exc0_1_2 }, | |
3068 | { 0x1a00, hleop_exc0_2_2 }, | |
3069 | { 0x19c8, hleop_exc1_0_1 }, | |
3070 | { 0x18bc, hleop_exc1_0_2 }, | |
3071 | { 0x1990, hleop_exc1_1_1 }, | |
3072 | { 0x1858, hleop_exc1_1_2 }, | |
3073 | { 0x1958, hleop_exc1_2_1 }, | |
3074 | { 0x17f4, hleop_exc1_2_2 }, | |
3075 | { 0x1920, hleop_exc1_3_1 }, | |
3076 | { 0x1794, hleop_exc1_3_2 }, | |
3077 | { 0x2458, hleop_exc3_0_2 }, | |
340addc5 | 3078 | { 0x49bc, hleop_exc_padcard1 }, |
3079 | { 0x4a4c, hleop_exc_padcard2 }, | |
9415f066 | 3080 | }; |
3081 | ||
3082 | static int chain_hle_op(u32 handler) | |
3083 | { | |
3084 | size_t i; | |
3085 | ||
3086 | for (i = 0; i < sizeof(chainfns) / sizeof(chainfns[0]); i++) | |
3087 | if (chainfns[i].addr == handler) | |
3088 | return chainfns[i].op; | |
3089 | return hleop_dummy; | |
3090 | } | |
3091 | ||
3092 | static void write_chain(u32 *d, u32 next, u32 handler1, u32 handler2) | |
3093 | { | |
3094 | d[0] = SWAPu32(next); | |
3095 | d[1] = SWAPu32(handler1); | |
3096 | d[2] = SWAPu32(handler2); | |
3097 | ||
340addc5 | 3098 | // install the hle traps |
4ebf5791 | 3099 | if (handler1) PSXMu32ref(handler1) = HLEOP(chain_hle_op(handler1)); |
3100 | if (handler2) PSXMu32ref(handler2) = HLEOP(chain_hle_op(handler2)); | |
9415f066 | 3101 | } |
3102 | ||
3807a976 | 3103 | static void setup_tt(u32 tcb_cnt, u32 evcb_cnt) |
3104 | { | |
3105 | u32 *ram32 = (u32 *)psxM; | |
3106 | u32 s_excb = 0x20, s_evcb = 0x1c * evcb_cnt; | |
3107 | u32 s_pcb = 4, s_tcb = 0xc0 * tcb_cnt; | |
3108 | u32 p_excb, p_evcb, p_pcb, p_tcb; | |
3109 | ||
3110 | memset(ram32 + 0xe000/4, 0, s_excb + s_evcb + s_pcb + s_tcb + 5*4); | |
3111 | psxBios_SysInitMemory_(0xa000e000, 0x2000); | |
3112 | p_excb = psxBios_SysMalloc_(s_excb); | |
3113 | p_evcb = psxBios_SysMalloc_(s_evcb); | |
3114 | p_pcb = psxBios_SysMalloc_(s_pcb); | |
3115 | p_tcb = psxBios_SysMalloc_(s_tcb); | |
3116 | ||
3117 | // "table of tables". Some games modify it | |
3118 | assert(A_TT_ExCB == 0x0100); | |
3119 | ram32[0x0100/4] = SWAPu32(p_excb); // ExCB - exception chains | |
3120 | ram32[0x0104/4] = SWAPu32(s_excb); // ExCB size | |
3121 | ram32[0x0108/4] = SWAPu32(p_pcb); // PCB - process control | |
3122 | ram32[0x010c/4] = SWAPu32(s_pcb); // PCB size | |
3123 | ram32[0x0110/4] = SWAPu32(p_tcb); // TCB - thread control | |
3124 | ram32[0x0114/4] = SWAPu32(s_tcb); // TCB size | |
3125 | ram32[0x0120/4] = SWAPu32(p_evcb); // EvCB - event control | |
3126 | ram32[0x0124/4] = SWAPu32(s_evcb); // EvCB size | |
3127 | ram32[0x0140/4] = SWAPu32(0x8648); // FCB - file control | |
3128 | ram32[0x0144/4] = SWAPu32(0x02c0); // FCB size | |
3129 | ram32[0x0150/4] = SWAPu32(0x6ee0); // DCB - device control | |
3130 | ram32[0x0154/4] = SWAPu32(0x0320); // DCB size | |
3131 | ||
3132 | storeRam32(p_excb + 0*4, 0x91e0); // chain0 | |
3133 | storeRam32(p_excb + 2*4, 0x6d88); // chain1 | |
3134 | storeRam32(p_excb + 4*4, 0x0000); // chain2 | |
3135 | storeRam32(p_excb + 6*4, 0x6d98); // chain3 | |
3136 | ||
3137 | storeRam32(p_pcb, p_tcb); | |
3138 | storeRam32(p_tcb, 0x4000); // first TCB | |
1fe066c6 | 3139 | |
3140 | // default events | |
3141 | storeRam32(A_CD_EVENTS + 0x00, OpenEvent(0xf0000003, 0x0010, EvMdMARK, 0)); | |
3142 | storeRam32(A_CD_EVENTS + 0x04, OpenEvent(0xf0000003, 0x0020, EvMdMARK, 0)); | |
3143 | storeRam32(A_CD_EVENTS + 0x08, OpenEvent(0xf0000003, 0x0040, EvMdMARK, 0)); | |
3144 | storeRam32(A_CD_EVENTS + 0x0c, OpenEvent(0xf0000003, 0x0080, EvMdMARK, 0)); | |
3145 | storeRam32(A_CD_EVENTS + 0x10, OpenEvent(0xf0000003, 0x8000, EvMdMARK, 0)); | |
3146 | DeliverEvent(0xf0000003, 0x0010); | |
3807a976 | 3147 | } |
3148 | ||
7575a4aa | 3149 | static const u32 gpu_ctl_def[] = { |
3150 | 0x00000000, 0x01000000, 0x03000000, 0x04000000, | |
3151 | 0x05000800, 0x06c60260, 0x0703fc10, 0x08000027 | |
3152 | }; | |
3153 | ||
3154 | static const u32 gpu_data_def[] = { | |
3155 | 0xe100360b, 0xe2000000, 0xe3000800, 0xe4077e7f, | |
3156 | 0xe5001000, 0xe6000000, | |
3157 | 0x02000000, 0x00000000, 0x01ff03ff | |
3158 | }; | |
3159 | ||
3160 | // from 1f801d80 | |
3161 | static const u16 spu_config[] = { | |
3162 | 0x3fff, 0x37ef, 0x5ebc, 0x5ebc, 0x0000, 0x0000, 0x0000, 0x00a0, | |
3163 | 0x0000, 0x0000, 0x0000, 0x0000, 0xffff, 0x00ff, 0x0000, 0x0000, | |
3164 | 0x0000, 0xe128, 0x0000, 0x0200, 0xf0f0, 0xc085, 0x0004, 0x0000, | |
3165 | 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, | |
3166 | 0x033d, 0x0231, 0x7e00, 0x5000, 0xb400, 0xb000, 0x4c00, 0xb000, | |
3167 | 0x6000, 0x5400, 0x1ed6, 0x1a31, 0x1d14, 0x183b, 0x1bc2, 0x16b2, | |
3168 | 0x1a32, 0x15ef, 0x15ee, 0x1055, 0x1334, 0x0f2d, 0x11f6, 0x0c5d, | |
3169 | 0x1056, 0x0ae1, 0x0ae0, 0x07a2, 0x0464, 0x0232, 0x8000, 0x8000 | |
3170 | }; | |
3171 | ||
3172 | void psxBiosSetupBootState(void) | |
3173 | { | |
3174 | boolean hle = Config.HLE; | |
3175 | u32 *hw = (u32 *)psxH; | |
3176 | int i; | |
3177 | ||
3178 | // see also SetBootRegs() | |
3179 | if (hle) { | |
3180 | v0 = 1; v1 = 4; | |
3181 | a0 = 1; a2 = a3 = 0; a3 = 0x2a; | |
3182 | t2 = 0x2d; t4 = 0x23; t5 = 0x2b; t6 = 0xa0010000; | |
3183 | s0 = 0xa000b870; | |
3184 | k0 = 0xbfc0d968; k1 = 0xf1c; | |
3185 | ra = 0xf0001234; // just to easily detect attempts to return | |
3186 | psxRegs.CP0.n.Cause = 0x20; | |
3187 | psxRegs.CP0.n.EPC = 0xbfc0d964; // EnterCriticalSection syscall | |
3188 | ||
3189 | hw[0x1000/4] = SWAP32(0x1f000000); | |
3190 | hw[0x1004/4] = SWAP32(0x1f802000); | |
3191 | hw[0x1008/4] = SWAP32(0x0013243f); | |
3192 | hw[0x100c/4] = SWAP32(0x00003022); | |
3193 | hw[0x1010/4] = SWAP32(0x0013243f); | |
3194 | hw[0x1014/4] = SWAP32(0x200931e1); | |
3195 | hw[0x1018/4] = SWAP32(0x00020943); | |
3196 | hw[0x101c/4] = SWAP32(0x00070777); | |
3197 | hw[0x1020/4] = SWAP32(0x0000132c); | |
3198 | hw[0x1060/4] = SWAP32(0x00000b88); | |
3199 | hw[0x1070/4] = SWAP32(0x00000001); | |
3200 | hw[0x1074/4] = SWAP32(0x0000000c); | |
3201 | hw[0x2040/4] = SWAP32(0x00000900); | |
3202 | } | |
3203 | ||
3204 | hw[0x10a0/4] = SWAP32(0x00ffffff); | |
3205 | hw[0x10a8/4] = SWAP32(0x00000401); | |
3206 | hw[0x10b0/4] = SWAP32(0x0008b000); | |
3207 | hw[0x10b4/4] = SWAP32(0x00010200); | |
3208 | hw[0x10e0/4] = SWAP32(0x000eccf4); | |
3209 | hw[0x10e4/4] = SWAP32(0x00000400); | |
3210 | hw[0x10e8/4] = SWAP32(0x00000002); | |
3211 | hw[0x10f0/4] = SWAP32(0x00009099); | |
3212 | hw[0x10f4/4] = SWAP32(0x8c8c0000); | |
3213 | ||
3214 | if (hle) { | |
3215 | psxRcntWmode(0, 0); | |
3216 | psxRcntWmode(1, 0); | |
3217 | psxRcntWmode(2, 0); | |
3218 | } | |
3219 | ||
3220 | // gpu | |
3221 | for (i = 0; i < sizeof(gpu_ctl_def) / sizeof(gpu_ctl_def[0]); i++) | |
3222 | GPU_writeStatus(gpu_ctl_def[i]); | |
3223 | for (i = 0; i < sizeof(gpu_data_def) / sizeof(gpu_data_def[0]); i++) | |
3224 | GPU_writeData(gpu_data_def[i]); | |
3225 | HW_GPU_STATUS |= SWAP32(PSXGPU_nBUSY); | |
3226 | ||
3227 | // spu | |
3228 | for (i = 0x1f801d80; i < sizeof(spu_config) / sizeof(spu_config[0]); i++) | |
3229 | SPU_writeRegister(0x1f801d80 + i*2, spu_config[i], psxRegs.cycle); | |
3230 | } | |
3231 | ||
3232 | #include "sjisfont.h" | |
3233 | ||
ef79bbde | 3234 | void psxBiosInit() { |
1fe066c6 | 3235 | u32 *ptr, *ram32, *rom32; |
ef79bbde P |
3236 | int i; |
3237 | uLongf len; | |
3238 | ||
9415f066 | 3239 | memset(psxM, 0, 0x10000); |
ef79bbde P |
3240 | for(i = 0; i < 256; i++) { |
3241 | biosA0[i] = NULL; | |
3242 | biosB0[i] = NULL; | |
3243 | biosC0[i] = NULL; | |
3244 | } | |
c02b90b2 | 3245 | biosA0[0x03] = biosB0[0x35] = psxBios_write_psxout; |
3246 | biosA0[0x3c] = biosB0[0x3d] = psxBios_putchar_psxout; | |
3247 | biosA0[0x3e] = biosB0[0x3f] = psxBios_puts_psxout; | |
3248 | biosA0[0x3f] = psxBios_printf_psxout; | |
ef79bbde P |
3249 | |
3250 | if (!Config.HLE) return; | |
3251 | ||
3252 | for(i = 0; i < 256; i++) { | |
3253 | if (biosA0[i] == NULL) biosA0[i] = psxBios_dummy; | |
3254 | if (biosB0[i] == NULL) biosB0[i] = psxBios_dummy; | |
3255 | if (biosC0[i] == NULL) biosC0[i] = psxBios_dummy; | |
3256 | } | |
3257 | ||
3258 | biosA0[0x00] = psxBios_open; | |
3259 | biosA0[0x01] = psxBios_lseek; | |
3260 | biosA0[0x02] = psxBios_read; | |
3261 | biosA0[0x03] = psxBios_write; | |
3262 | biosA0[0x04] = psxBios_close; | |
3263 | //biosA0[0x05] = psxBios_ioctl; | |
3264 | //biosA0[0x06] = psxBios_exit; | |
3265 | //biosA0[0x07] = psxBios_sys_a0_07; | |
324cec89 | 3266 | biosA0[0x08] = psxBios_getc; |
3267 | biosA0[0x09] = psxBios_putc; | |
ba11675c | 3268 | biosA0[0x0a] = psxBios_todigit; |
ef79bbde P |
3269 | //biosA0[0x0b] = psxBios_atof; |
3270 | //biosA0[0x0c] = psxBios_strtoul; | |
3271 | //biosA0[0x0d] = psxBios_strtol; | |
3272 | biosA0[0x0e] = psxBios_abs; | |
3273 | biosA0[0x0f] = psxBios_labs; | |
3274 | biosA0[0x10] = psxBios_atoi; | |
3275 | biosA0[0x11] = psxBios_atol; | |
3276 | //biosA0[0x12] = psxBios_atob; | |
3277 | biosA0[0x13] = psxBios_setjmp; | |
3278 | biosA0[0x14] = psxBios_longjmp; | |
3279 | biosA0[0x15] = psxBios_strcat; | |
3280 | biosA0[0x16] = psxBios_strncat; | |
3281 | biosA0[0x17] = psxBios_strcmp; | |
3282 | biosA0[0x18] = psxBios_strncmp; | |
3283 | biosA0[0x19] = psxBios_strcpy; | |
3284 | biosA0[0x1a] = psxBios_strncpy; | |
3285 | biosA0[0x1b] = psxBios_strlen; | |
3286 | biosA0[0x1c] = psxBios_index; | |
3287 | biosA0[0x1d] = psxBios_rindex; | |
3288 | biosA0[0x1e] = psxBios_strchr; | |
3289 | biosA0[0x1f] = psxBios_strrchr; | |
3290 | biosA0[0x20] = psxBios_strpbrk; | |
3291 | biosA0[0x21] = psxBios_strspn; | |
3292 | biosA0[0x22] = psxBios_strcspn; | |
3293 | biosA0[0x23] = psxBios_strtok; | |
3294 | biosA0[0x24] = psxBios_strstr; | |
3295 | biosA0[0x25] = psxBios_toupper; | |
3296 | biosA0[0x26] = psxBios_tolower; | |
3297 | biosA0[0x27] = psxBios_bcopy; | |
3298 | biosA0[0x28] = psxBios_bzero; | |
3299 | biosA0[0x29] = psxBios_bcmp; | |
3300 | biosA0[0x2a] = psxBios_memcpy; | |
3301 | biosA0[0x2b] = psxBios_memset; | |
3302 | biosA0[0x2c] = psxBios_memmove; | |
3303 | biosA0[0x2d] = psxBios_memcmp; | |
3304 | biosA0[0x2e] = psxBios_memchr; | |
3305 | biosA0[0x2f] = psxBios_rand; | |
3306 | biosA0[0x30] = psxBios_srand; | |
3307 | biosA0[0x31] = psxBios_qsort; | |
3308 | //biosA0[0x32] = psxBios_strtod; | |
3309 | biosA0[0x33] = psxBios_malloc; | |
3310 | biosA0[0x34] = psxBios_free; | |
3311 | //biosA0[0x35] = psxBios_lsearch; | |
3312 | //biosA0[0x36] = psxBios_bsearch; | |
3313 | biosA0[0x37] = psxBios_calloc; | |
3314 | biosA0[0x38] = psxBios_realloc; | |
3315 | biosA0[0x39] = psxBios_InitHeap; | |
3316 | //biosA0[0x3a] = psxBios__exit; | |
3317 | biosA0[0x3b] = psxBios_getchar; | |
8ec1e4de | 3318 | biosA0[0x3c] = psxBios_putchar; |
ef79bbde | 3319 | //biosA0[0x3d] = psxBios_gets; |
2bbcfe6b | 3320 | biosA0[0x3e] = psxBios_puts; |
3321 | biosA0[0x3f] = psxBios_printf; | |
9415f066 | 3322 | biosA0[0x40] = psxBios_SystemErrorUnresolvedException; |
ef79bbde P |
3323 | //biosA0[0x41] = psxBios_LoadTest; |
3324 | biosA0[0x42] = psxBios_Load; | |
3325 | biosA0[0x43] = psxBios_Exec; | |
3326 | biosA0[0x44] = psxBios_FlushCache; | |
3327 | //biosA0[0x45] = psxBios_InstallInterruptHandler; | |
3328 | biosA0[0x46] = psxBios_GPU_dw; | |
3329 | biosA0[0x47] = psxBios_mem2vram; | |
3330 | biosA0[0x48] = psxBios_SendGPU; | |
3331 | biosA0[0x49] = psxBios_GPU_cw; | |
3332 | biosA0[0x4a] = psxBios_GPU_cwb; | |
3333 | biosA0[0x4b] = psxBios_GPU_SendPackets; | |
3334 | biosA0[0x4c] = psxBios_sys_a0_4c; | |
3335 | biosA0[0x4d] = psxBios_GPU_GetGPUStatus; | |
8ec1e4de | 3336 | //biosA0[0x4e] = psxBios_GPU_sync; |
ef79bbde P |
3337 | //biosA0[0x4f] = psxBios_sys_a0_4f; |
3338 | //biosA0[0x50] = psxBios_sys_a0_50; | |
3339 | biosA0[0x51] = psxBios_LoadExec; | |
3340 | //biosA0[0x52] = psxBios_GetSysSp; | |
3341 | //biosA0[0x53] = psxBios_sys_a0_53; | |
3342 | //biosA0[0x54] = psxBios__96_init_a54; | |
3343 | //biosA0[0x55] = psxBios__bu_init_a55; | |
9415f066 | 3344 | biosA0[0x56] = psxBios_CdRemove; |
ef79bbde P |
3345 | //biosA0[0x57] = psxBios_sys_a0_57; |
3346 | //biosA0[0x58] = psxBios_sys_a0_58; | |
3347 | //biosA0[0x59] = psxBios_sys_a0_59; | |
3348 | //biosA0[0x5a] = psxBios_sys_a0_5a; | |
3349 | //biosA0[0x5b] = psxBios_dev_tty_init; | |
3350 | //biosA0[0x5c] = psxBios_dev_tty_open; | |
3351 | //biosA0[0x5d] = psxBios_sys_a0_5d; | |
3352 | //biosA0[0x5e] = psxBios_dev_tty_ioctl; | |
3353 | //biosA0[0x5f] = psxBios_dev_cd_open; | |
3354 | //biosA0[0x60] = psxBios_dev_cd_read; | |
3355 | //biosA0[0x61] = psxBios_dev_cd_close; | |
3356 | //biosA0[0x62] = psxBios_dev_cd_firstfile; | |
3357 | //biosA0[0x63] = psxBios_dev_cd_nextfile; | |
3358 | //biosA0[0x64] = psxBios_dev_cd_chdir; | |
3359 | //biosA0[0x65] = psxBios_dev_card_open; | |
3360 | //biosA0[0x66] = psxBios_dev_card_read; | |
3361 | //biosA0[0x67] = psxBios_dev_card_write; | |
3362 | //biosA0[0x68] = psxBios_dev_card_close; | |
3363 | //biosA0[0x69] = psxBios_dev_card_firstfile; | |
3364 | //biosA0[0x6a] = psxBios_dev_card_nextfile; | |
3365 | //biosA0[0x6b] = psxBios_dev_card_erase; | |
3366 | //biosA0[0x6c] = psxBios_dev_card_undelete; | |
3367 | //biosA0[0x6d] = psxBios_dev_card_format; | |
3368 | //biosA0[0x6e] = psxBios_dev_card_rename; | |
3369 | //biosA0[0x6f] = psxBios_dev_card_6f; | |
3370 | biosA0[0x70] = psxBios__bu_init; | |
3371 | biosA0[0x71] = psxBios__96_init; | |
9415f066 | 3372 | biosA0[0x72] = psxBios_CdRemove; |
ef79bbde P |
3373 | //biosA0[0x73] = psxBios_sys_a0_73; |
3374 | //biosA0[0x74] = psxBios_sys_a0_74; | |
3375 | //biosA0[0x75] = psxBios_sys_a0_75; | |
3376 | //biosA0[0x76] = psxBios_sys_a0_76; | |
3377 | //biosA0[0x77] = psxBios_sys_a0_77; | |
3378 | //biosA0[0x78] = psxBios__96_CdSeekL; | |
3379 | //biosA0[0x79] = psxBios_sys_a0_79; | |
3380 | //biosA0[0x7a] = psxBios_sys_a0_7a; | |
3381 | //biosA0[0x7b] = psxBios_sys_a0_7b; | |
3382 | //biosA0[0x7c] = psxBios__96_CdGetStatus; | |
3383 | //biosA0[0x7d] = psxBios_sys_a0_7d; | |
3384 | //biosA0[0x7e] = psxBios__96_CdRead; | |
3385 | //biosA0[0x7f] = psxBios_sys_a0_7f; | |
3386 | //biosA0[0x80] = psxBios_sys_a0_80; | |
3387 | //biosA0[0x81] = psxBios_sys_a0_81; | |
8ec1e4de | 3388 | //biosA0[0x82] = psxBios_sys_a0_82; |
ef79bbde P |
3389 | //biosA0[0x83] = psxBios_sys_a0_83; |
3390 | //biosA0[0x84] = psxBios_sys_a0_84; | |
8ec1e4de | 3391 | //biosA0[0x85] = psxBios__96_CdStop; |
ef79bbde P |
3392 | //biosA0[0x86] = psxBios_sys_a0_86; |
3393 | //biosA0[0x87] = psxBios_sys_a0_87; | |
3394 | //biosA0[0x88] = psxBios_sys_a0_88; | |
3395 | //biosA0[0x89] = psxBios_sys_a0_89; | |
3396 | //biosA0[0x8a] = psxBios_sys_a0_8a; | |
3397 | //biosA0[0x8b] = psxBios_sys_a0_8b; | |
3398 | //biosA0[0x8c] = psxBios_sys_a0_8c; | |
3399 | //biosA0[0x8d] = psxBios_sys_a0_8d; | |
3400 | //biosA0[0x8e] = psxBios_sys_a0_8e; | |
3401 | //biosA0[0x8f] = psxBios_sys_a0_8f; | |
9415f066 | 3402 | biosA0[0x90] = hleExc0_1_2; |
3403 | biosA0[0x91] = hleExc0_0_2; | |
3404 | biosA0[0x92] = hleExc0_1_1; | |
3405 | biosA0[0x93] = hleExc0_0_1; | |
ef79bbde P |
3406 | //biosA0[0x94] = psxBios_sys_a0_94; |
3407 | //biosA0[0x95] = psxBios_sys_a0_95; | |
3408 | //biosA0[0x96] = psxBios_AddCDROMDevice; | |
3409 | //biosA0[0x97] = psxBios_AddMemCardDevide; | |
3410 | //biosA0[0x98] = psxBios_DisableKernelIORedirection; | |
3411 | //biosA0[0x99] = psxBios_EnableKernelIORedirection; | |
3412 | //biosA0[0x9a] = psxBios_sys_a0_9a; | |
3413 | //biosA0[0x9b] = psxBios_sys_a0_9b; | |
3414 | //biosA0[0x9c] = psxBios_SetConf; | |
3415 | //biosA0[0x9d] = psxBios_GetConf; | |
3416 | //biosA0[0x9e] = psxBios_sys_a0_9e; | |
3417 | biosA0[0x9f] = psxBios_SetMem; | |
3418 | //biosA0[0xa0] = psxBios__boot; | |
3419 | //biosA0[0xa1] = psxBios_SystemError; | |
3420 | //biosA0[0xa2] = psxBios_EnqueueCdIntr; | |
9415f066 | 3421 | biosA0[0xa3] = psxBios_DequeueCdIntr; |
ef79bbde P |
3422 | //biosA0[0xa4] = psxBios_sys_a0_a4; |
3423 | //biosA0[0xa5] = psxBios_ReadSector; | |
18dd7e9e | 3424 | biosA0[0xa6] = psxBios_get_cd_status; |
ef79bbde P |
3425 | //biosA0[0xa7] = psxBios_bufs_cb_0; |
3426 | //biosA0[0xa8] = psxBios_bufs_cb_1; | |
3427 | //biosA0[0xa9] = psxBios_bufs_cb_2; | |
3428 | //biosA0[0xaa] = psxBios_bufs_cb_3; | |
3429 | biosA0[0xab] = psxBios__card_info; | |
3430 | biosA0[0xac] = psxBios__card_load; | |
3431 | //biosA0[0axd] = psxBios__card_auto; | |
3432 | //biosA0[0xae] = psxBios_bufs_cd_4; | |
3433 | //biosA0[0xaf] = psxBios_sys_a0_af; | |
3434 | //biosA0[0xb0] = psxBios_sys_a0_b0; | |
3435 | //biosA0[0xb1] = psxBios_sys_a0_b1; | |
3436 | //biosA0[0xb2] = psxBios_do_a_long_jmp | |
3437 | //biosA0[0xb3] = psxBios_sys_a0_b3; | |
2bbcfe6b | 3438 | biosA0[0xb4] = psxBios_GetSystemInfo; |
ef79bbde | 3439 | //*******************B0 CALLS**************************** |
3807a976 | 3440 | biosB0[0x00] = psxBios_SysMalloc; |
ef79bbde P |
3441 | //biosB0[0x01] = psxBios_sys_b0_01; |
3442 | biosB0[0x02] = psxBios_SetRCnt; | |
3443 | biosB0[0x03] = psxBios_GetRCnt; | |
3444 | biosB0[0x04] = psxBios_StartRCnt; | |
3445 | biosB0[0x05] = psxBios_StopRCnt; | |
3446 | biosB0[0x06] = psxBios_ResetRCnt; | |
3447 | biosB0[0x07] = psxBios_DeliverEvent; | |
3448 | biosB0[0x08] = psxBios_OpenEvent; | |
3449 | biosB0[0x09] = psxBios_CloseEvent; | |
3450 | biosB0[0x0a] = psxBios_WaitEvent; | |
3451 | biosB0[0x0b] = psxBios_TestEvent; | |
3452 | biosB0[0x0c] = psxBios_EnableEvent; | |
3453 | biosB0[0x0d] = psxBios_DisableEvent; | |
3454 | biosB0[0x0e] = psxBios_OpenTh; | |
3455 | biosB0[0x0f] = psxBios_CloseTh; | |
3456 | biosB0[0x10] = psxBios_ChangeTh; | |
3457 | //biosB0[0x11] = psxBios_psxBios_b0_11; | |
3458 | biosB0[0x12] = psxBios_InitPAD; | |
3459 | biosB0[0x13] = psxBios_StartPAD; | |
3460 | biosB0[0x14] = psxBios_StopPAD; | |
3461 | biosB0[0x15] = psxBios_PAD_init; | |
3462 | biosB0[0x16] = psxBios_PAD_dr; | |
3463 | biosB0[0x17] = psxBios_ReturnFromException; | |
3464 | biosB0[0x18] = psxBios_ResetEntryInt; | |
3465 | biosB0[0x19] = psxBios_HookEntryInt; | |
3466 | //biosB0[0x1a] = psxBios_sys_b0_1a; | |
3467 | //biosB0[0x1b] = psxBios_sys_b0_1b; | |
3468 | //biosB0[0x1c] = psxBios_sys_b0_1c; | |
3469 | //biosB0[0x1d] = psxBios_sys_b0_1d; | |
3470 | //biosB0[0x1e] = psxBios_sys_b0_1e; | |
3471 | //biosB0[0x1f] = psxBios_sys_b0_1f; | |
3472 | biosB0[0x20] = psxBios_UnDeliverEvent; | |
3473 | //biosB0[0x21] = psxBios_sys_b0_21; | |
3474 | //biosB0[0x22] = psxBios_sys_b0_22; | |
3475 | //biosB0[0x23] = psxBios_sys_b0_23; | |
3476 | //biosB0[0x24] = psxBios_sys_b0_24; | |
3477 | //biosB0[0x25] = psxBios_sys_b0_25; | |
3478 | //biosB0[0x26] = psxBios_sys_b0_26; | |
3479 | //biosB0[0x27] = psxBios_sys_b0_27; | |
3480 | //biosB0[0x28] = psxBios_sys_b0_28; | |
3481 | //biosB0[0x29] = psxBios_sys_b0_29; | |
3482 | //biosB0[0x2a] = psxBios_sys_b0_2a; | |
3483 | //biosB0[0x2b] = psxBios_sys_b0_2b; | |
3484 | //biosB0[0x2c] = psxBios_sys_b0_2c; | |
3485 | //biosB0[0x2d] = psxBios_sys_b0_2d; | |
3486 | //biosB0[0x2e] = psxBios_sys_b0_2e; | |
3487 | //biosB0[0x2f] = psxBios_sys_b0_2f; | |
3488 | //biosB0[0x30] = psxBios_sys_b0_30; | |
3489 | //biosB0[0x31] = psxBios_sys_b0_31; | |
3490 | biosB0[0x32] = psxBios_open; | |
3491 | biosB0[0x33] = psxBios_lseek; | |
3492 | biosB0[0x34] = psxBios_read; | |
3493 | biosB0[0x35] = psxBios_write; | |
3494 | biosB0[0x36] = psxBios_close; | |
3495 | //biosB0[0x37] = psxBios_ioctl; | |
3496 | //biosB0[0x38] = psxBios_exit; | |
3497 | //biosB0[0x39] = psxBios_sys_b0_39; | |
3498 | //biosB0[0x3a] = psxBios_getc; | |
3499 | //biosB0[0x3b] = psxBios_putc; | |
3500 | biosB0[0x3c] = psxBios_getchar; | |
2bbcfe6b | 3501 | biosB0[0x3d] = psxBios_putchar; |
ef79bbde | 3502 | //biosB0[0x3e] = psxBios_gets; |
2bbcfe6b | 3503 | biosB0[0x3f] = psxBios_puts; |
ef79bbde | 3504 | //biosB0[0x40] = psxBios_cd; |
e7e1f572 | 3505 | biosB0[0x41] = psxBios_format; |
ef79bbde P |
3506 | biosB0[0x42] = psxBios_firstfile; |
3507 | biosB0[0x43] = psxBios_nextfile; | |
3508 | biosB0[0x44] = psxBios_rename; | |
3509 | biosB0[0x45] = psxBios_delete; | |
3510 | //biosB0[0x46] = psxBios_undelete; | |
3511 | //biosB0[0x47] = psxBios_AddDevice; | |
3512 | //biosB0[0x48] = psxBios_RemoteDevice; | |
3513 | //biosB0[0x49] = psxBios_PrintInstalledDevices; | |
3514 | biosB0[0x4a] = psxBios_InitCARD; | |
3515 | biosB0[0x4b] = psxBios_StartCARD; | |
3516 | biosB0[0x4c] = psxBios_StopCARD; | |
3517 | //biosB0[0x4d] = psxBios_sys_b0_4d; | |
3518 | biosB0[0x4e] = psxBios__card_write; | |
3519 | biosB0[0x4f] = psxBios__card_read; | |
3520 | biosB0[0x50] = psxBios__new_card; | |
3521 | biosB0[0x51] = psxBios_Krom2RawAdd; | |
3522 | //biosB0[0x52] = psxBios_sys_b0_52; | |
3523 | //biosB0[0x53] = psxBios_sys_b0_53; | |
3524 | //biosB0[0x54] = psxBios__get_errno; | |
002b2f7d | 3525 | biosB0[0x55] = psxBios__get_error; |
ef79bbde P |
3526 | biosB0[0x56] = psxBios_GetC0Table; |
3527 | biosB0[0x57] = psxBios_GetB0Table; | |
e9fda093 | 3528 | biosB0[0x58] = psxBios__card_chan; |
ef79bbde P |
3529 | //biosB0[0x59] = psxBios_sys_b0_59; |
3530 | //biosB0[0x5a] = psxBios_sys_b0_5a; | |
3531 | biosB0[0x5b] = psxBios_ChangeClearPad; | |
872515f9 | 3532 | biosB0[0x5c] = psxBios__card_status; |
5f652aa9 | 3533 | biosB0[0x5d] = psxBios__card_wait; |
ef79bbde | 3534 | //*******************C0 CALLS**************************** |
3807a976 | 3535 | biosC0[0x00] = psxBios_InitRCnt; |
3536 | biosC0[0x01] = psxBios_InitException; | |
ef79bbde P |
3537 | biosC0[0x02] = psxBios_SysEnqIntRP; |
3538 | biosC0[0x03] = psxBios_SysDeqIntRP; | |
1fe066c6 | 3539 | biosC0[0x04] = psxBios_get_free_EvCB_slot; |
ef79bbde P |
3540 | //biosC0[0x05] = psxBios_get_free_TCB_slot; |
3541 | //biosC0[0x06] = psxBios_ExceptionHandler; | |
3542 | //biosC0[0x07] = psxBios_InstallExeptionHandler; | |
3807a976 | 3543 | biosC0[0x08] = psxBios_SysInitMemory; |
ef79bbde | 3544 | //biosC0[0x09] = psxBios_SysInitKMem; |
8ec1e4de | 3545 | biosC0[0x0a] = psxBios_ChangeClearRCnt; |
ef79bbde | 3546 | //biosC0[0x0b] = psxBios_SystemError; |
3807a976 | 3547 | biosC0[0x0c] = psxBios_InitDefInt; |
ef79bbde P |
3548 | //biosC0[0x0d] = psxBios_sys_c0_0d; |
3549 | //biosC0[0x0e] = psxBios_sys_c0_0e; | |
3550 | //biosC0[0x0f] = psxBios_sys_c0_0f; | |
3551 | //biosC0[0x10] = psxBios_sys_c0_10; | |
3552 | //biosC0[0x11] = psxBios_sys_c0_11; | |
3553 | //biosC0[0x12] = psxBios_InstallDevices; | |
3554 | //biosC0[0x13] = psxBios_FlushStfInOutPut; | |
3555 | //biosC0[0x14] = psxBios_sys_c0_14; | |
3556 | //biosC0[0x15] = psxBios__cdevinput; | |
3557 | //biosC0[0x16] = psxBios__cdevscan; | |
3558 | //biosC0[0x17] = psxBios__circgetc; | |
3559 | //biosC0[0x18] = psxBios__circputc; | |
3560 | //biosC0[0x19] = psxBios_ioabort; | |
3561 | //biosC0[0x1a] = psxBios_sys_c0_1a | |
3562 | //biosC0[0x1b] = psxBios_KernelRedirect; | |
3563 | //biosC0[0x1c] = psxBios_PatchAOTable; | |
3564 | //************** THE END *************************************** | |
3565 | /**/ | |
ef79bbde | 3566 | |
c62b43c9 | 3567 | memset(FDesc, 0, sizeof(FDesc)); |
3568 | ||
2bbcfe6b | 3569 | // somewhat pretend to be a SCPH1001 BIOS |
3570 | // some games look for these and take an exception if they're missing | |
1fe066c6 | 3571 | rom32 = (u32 *)psxR; |
3572 | rom32[0x100/4] = SWAP32(0x19951204); | |
3573 | rom32[0x104/4] = SWAP32(3); | |
3574 | strcpy(psxR + 0x108, "PCSX authors"); | |
2bbcfe6b | 3575 | strcpy(psxR + 0x12c, "CEX-3000 PCSX HLE"); // see psxBios_GetSystemInfo |
3576 | strcpy(psxR + 0x7ff32, "System ROM Version 2.2 12/04/95 A"); | |
3577 | strcpy(psxR + 0x7ff54, "GPL-2.0-or-later"); | |
1fe066c6 | 3578 | |
ef79bbde P |
3579 | // fonts |
3580 | len = 0x80000 - 0x66000; | |
3581 | uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140)); | |
3582 | len = 0x80000 - 0x69d68; | |
3583 | uncompress((Bytef *)(psxR + 0x69d68), &len, font_889f, sizeof(font_889f)); | |
3584 | ||
4ebf5791 | 3585 | // trap attempts to call bios directly |
3586 | rom32[0x00000/4] = HLEOP(hleop_dummy); | |
3587 | rom32[0x00180/4] = HLEOP(hleop_dummy); | |
3588 | rom32[0x3fffc/4] = HLEOP(hleop_dummy); | |
3589 | rom32[0x65ffc/4] = HLEOP(hleop_dummy); | |
3590 | rom32[0x7ff2c/4] = HLEOP(hleop_dummy); | |
3591 | ||
bf643fd9 | 3592 | /* Some games like R-Types, CTR, Fade to Black read from adress 0x00000000 due to uninitialized pointers. |
3593 | See Garbage Area at Address 00000000h in Nocash PSX Specfications for more information. | |
339cc5b6 | 3594 | Here are some examples of games not working with this fix in place : |
3595 | R-type won't get past the Irem logo if not implemented. | |
3596 | Crash Team Racing will softlock after the Sony logo. | |
bf643fd9 | 3597 | */ |
8ec1e4de | 3598 | |
9415f066 | 3599 | ram32 = (u32 *)psxM; |
3600 | ram32[0x0000/4] = SWAPu32(0x00000003); // lui $k0, 0 (overwritten by 3) | |
3601 | ram32[0x0004/4] = SWAPu32(0x275a0000 + A_EXCEPTION); // addiu $k0, $k0, 0xc80 | |
3602 | ram32[0x0008/4] = SWAPu32(0x03400008); // jr $k0 | |
3603 | ram32[0x000c/4] = SWAPu32(0x00000000); // nop | |
3604 | ||
3605 | ram32[0x0060/4] = SWAPu32(0x00000002); // ram size? | |
3606 | ram32[0x0068/4] = SWAPu32(0x000000ff); // unknown | |
3607 | ||
3608 | ram32[0x0080/4] = SWAPu32(0x3c1a0000); // lui $k0, 0 // exception vector | |
3609 | ram32[0x0084/4] = SWAPu32(0x275a0000 + A_EXCEPTION); // addiu $k0, $k0, 0xc80 | |
3610 | ram32[0x0088/4] = SWAPu32(0x03400008); // jr $k0 | |
3611 | ram32[0x008c/4] = SWAPu32(0x00000000); // nop | |
3612 | ||
3613 | ram32[0x00a0/4] = HLEOP(hleop_a0); | |
3614 | ram32[0x00b0/4] = HLEOP(hleop_b0); | |
3615 | ram32[0x00c0/4] = HLEOP(hleop_c0); | |
3616 | ||
3807a976 | 3617 | setup_tt(4, 16); |
9415f066 | 3618 | |
3619 | ram32[0x6ee0/4] = SWAPu32(0x0000eff0); // DCB | |
3620 | strcpy((char *)&ram32[0xeff0/4], "bu"); | |
3621 | ||
3622 | // default exception handler chains | |
3623 | write_chain(&ram32[0x91e0/4], 0x91d0, 0xbfc050a4, 0xbfc04fbc); // chain0.e0 | |
3624 | write_chain(&ram32[0x91d0/4], 0x6da8, 0xbfc0506c, 0xbfc04dec); // chain0.e1 | |
3625 | write_chain(&ram32[0x6da8/4], 0, 0, 0x1a00); // chain0.e2 | |
3626 | write_chain(&ram32[0x6d88/4], 0x6d78, 0x19c8, 0x18bc); // chain1.e0 | |
3627 | write_chain(&ram32[0x6d78/4], 0x6d68, 0x1990, 0x1858); // chain1.e1 | |
3628 | write_chain(&ram32[0x6d68/4], 0x6d58, 0x1958, 0x17f4); // chain1.e2 | |
3629 | write_chain(&ram32[0x6d58/4], 0, 0x1920, 0x1794); // chain1.e3 | |
3630 | write_chain(&ram32[0x6d98/4], 0, 0, 0x2458); // chain3.e0 | |
3631 | ||
3632 | setup_mips_code(); | |
3633 | ||
3634 | // fill the api jumptables with fake entries as some games patch them | |
3635 | // (or rather the funcs listed there) | |
3636 | ptr = (u32 *)&psxM[A_A0_TABLE]; | |
3637 | for (i = 0; i < 256; i++) | |
3638 | ptr[i] = SWAP32(0x1000); | |
3639 | ||
3640 | ptr = (u32 *)&psxM[A_B0_TABLE]; | |
3641 | for (i = 0; i < 256; i++) | |
3642 | ptr[i] = SWAP32(0x2000); | |
3643 | // B(5b) is special because games patch (sometimes even jump to) | |
3644 | // code at fixed offsets from it, nocash lists offsets: | |
3645 | // patch: +3d8, +4dc, +594, +62c, +9c8, +1988 | |
3646 | // call: +7a0=4b70, +884=4c54, +894=4c64 | |
3647 | ptr[0x5b] = SWAP32(0x43d0); | |
340addc5 | 3648 | ram32[0x4b70/4] = SWAP32(0x03e00008); // jr $ra // setPadOutputBuf |
3649 | ||
3650 | ram32[0x4c54/4] = SWAP32(0x240e0001); // mov $t6, 1 | |
3651 | ram32[0x4c58/4] = SWAP32(0x03e00008); // jr $ra | |
3652 | ram32[0x4c5c/4] = SWAP32(0xac0e0000 + A_PAD_IRQR_ENA); // sw $t6, ... | |
3653 | ||
9415f066 | 3654 | ram32[0x4c64/4] = SWAP32(0x03e00008); // jr $ra |
340addc5 | 3655 | ram32[0x4c68/4] = SWAP32(0xac000000 + A_PAD_IRQR_ENA); // sw $0, ... |
9415f066 | 3656 | |
3657 | ptr = (u32 *)&psxM[A_C0_TABLE]; | |
3658 | for (i = 0; i < 256/2; i++) | |
3659 | ptr[i] = SWAP32(0x3000); | |
3660 | ptr[6] = SWAP32(A_EXCEPTION); | |
3661 | ||
3662 | // more HLE traps | |
3663 | ram32[0x1000/4] = HLEOP(hleop_dummy); | |
3664 | ram32[0x2000/4] = HLEOP(hleop_dummy); | |
3665 | ram32[0x3000/4] = HLEOP(hleop_dummy); | |
9415f066 | 3666 | ram32[0x8000/4] = HLEOP(hleop_execret); |
3667 | ||
3668 | ram32[A_EEXIT_PTR/4] = SWAP32(A_EEXIT_DEF); | |
3669 | ram32[A_EXC_SP/4] = SWAP32(A_EXC_STACK); | |
3670 | ram32[A_RCNT_VBL_ACK/4 + 0] = SWAP32(1); | |
3671 | ram32[A_RCNT_VBL_ACK/4 + 1] = SWAP32(1); | |
3672 | ram32[A_RCNT_VBL_ACK/4 + 2] = SWAP32(1); | |
3673 | ram32[A_RCNT_VBL_ACK/4 + 3] = SWAP32(1); | |
52cf8a87 | 3674 | ram32[A_RND_SEED/4] = SWAPu32(0x24040001); // was 0xac20cc00 |
ef79bbde P |
3675 | } |
3676 | ||
3677 | void psxBiosShutdown() { | |
3678 | } | |
3679 | ||
3807a976 | 3680 | void psxBiosCnfLoaded(u32 tcb_cnt, u32 evcb_cnt) { |
3681 | if (tcb_cnt != 4 || evcb_cnt != 16) | |
3682 | setup_tt(tcb_cnt, evcb_cnt); | |
9415f066 | 3683 | } |
3684 | ||
ef79bbde P |
3685 | #define psxBios_PADpoll(pad) { \ |
3686 | PAD##pad##_startPoll(pad); \ | |
3687 | pad_buf##pad[0] = 0; \ | |
3688 | pad_buf##pad[1] = PAD##pad##_poll(0x42); \ | |
3689 | if (!(pad_buf##pad[1] & 0x0f)) { \ | |
3690 | bufcount = 32; \ | |
3691 | } else { \ | |
3692 | bufcount = (pad_buf##pad[1] & 0x0f) * 2; \ | |
3693 | } \ | |
3694 | PAD##pad##_poll(0); \ | |
3695 | i = 2; \ | |
3696 | while (bufcount--) { \ | |
3697 | pad_buf##pad[i++] = PAD##pad##_poll(0); \ | |
3698 | } \ | |
3699 | } | |
3700 | ||
9415f066 | 3701 | static void handle_chain_x_x_1(u32 enable, u32 irqbit) |
3702 | { | |
3703 | use_cycles(10); | |
3704 | if (enable) { | |
3705 | psxHwWrite16(0x1f801070, ~(1u << irqbit)); | |
3706 | psxBios_ReturnFromException(); | |
3707 | } | |
3708 | else | |
3709 | pc0 = ra; | |
3710 | } | |
ef79bbde | 3711 | |
9415f066 | 3712 | // hleExc0_{0,1}* are usually removed by A(56)/A(72) on the game's startup, |
3713 | // so this is only partially implemented | |
3714 | void hleExc0_0_1() // A(93h) - CdromDmaIrqFunc2 | |
3715 | { | |
3716 | u32 cdrom_dma_ack_enable = 1; // a000b93c | |
3717 | handle_chain_x_x_1(cdrom_dma_ack_enable, 3); // IRQ3 DMA | |
3718 | } | |
ef79bbde | 3719 | |
9415f066 | 3720 | void hleExc0_0_2() // A(91h) - CdromDmaIrqFunc1 |
3721 | { | |
3722 | u32 ret = 0; | |
3723 | //PSXBIOS_LOG("%s\n", __func__); | |
ef79bbde | 3724 | |
9415f066 | 3725 | if (psxHu32(0x1074) & psxHu32(0x1070) & 8) { // IRQ3 DMA |
3726 | psxHwWrite32(0x1f8010f4, (psxHu32(0x10f4) & 0xffffff) | 0x88000000); | |
3727 | //if (--cdrom_irq_counter == 0) // 0xa0009180 | |
1fe066c6 | 3728 | // DeliverEvent(0xf0000003, 0x10); |
9415f066 | 3729 | use_cycles(22); |
3730 | ret = 1; | |
3731 | } | |
3732 | mips_return_c(ret, 20); | |
3733 | } | |
ef79bbde | 3734 | |
9415f066 | 3735 | void hleExc0_1_1() // A(92h) - CdromIoIrqFunc2 |
3736 | { | |
3737 | u32 cdrom_irq_ack_enable = 1; // a000b938 | |
3738 | handle_chain_x_x_1(cdrom_irq_ack_enable, 2); // IRQ2 cdrom | |
3739 | } | |
ef79bbde | 3740 | |
9415f066 | 3741 | void hleExc0_1_2() // A(90h) - CdromIoIrqFunc1 |
3742 | { | |
3743 | u32 ret = 0; | |
3744 | if (psxHu32(0x1074) & psxHu32(0x1070) & 4) { // IRQ2 cdrom | |
3745 | PSXBIOS_LOG("%s TODO\n", __func__); | |
3746 | ret = 1; | |
3747 | } | |
3748 | mips_return_c(ret, 20); | |
3749 | } | |
ef79bbde | 3750 | |
9415f066 | 3751 | void hleExc0_2_2_syscall() // not in any A/B/C table |
3752 | { | |
9415f066 | 3753 | u32 tcbPtr = loadRam32(A_TT_PCB); |
3754 | TCB *tcb = loadRam32ptr(tcbPtr); | |
52cf8a87 | 3755 | u32 code = (SWAP32(tcb->cause) & 0x3c) >> 2; |
9415f066 | 3756 | |
3757 | if (code != R3000E_Syscall) { | |
3758 | if (code != 0) { | |
1fe066c6 | 3759 | DeliverEvent(0xf0000010, 0x1000); |
2bbcfe6b | 3760 | //psxBios_SystemErrorUnresolvedException(); |
ef79bbde | 3761 | } |
9415f066 | 3762 | mips_return_c(0, 17); |
3763 | return; | |
ef79bbde P |
3764 | } |
3765 | ||
607dd967 | 3766 | //printf("%s c=%d a0=%d\n", __func__, code, SWAP32(tcb->reg[4])); |
9415f066 | 3767 | tcb->epc += SWAP32(4); |
607dd967 | 3768 | switch (SWAP32(tcb->reg[4])) { // a0 |
9415f066 | 3769 | case 0: // noop |
3770 | break; | |
ef79bbde | 3771 | |
9415f066 | 3772 | case 1: { // EnterCritical - disable irqs |
3773 | u32 was_enabled = ((SWAP32(tcb->sr) & 0x404) == 0x404); | |
3774 | tcb->reg[2] = SWAP32(was_enabled); | |
3775 | tcb->sr &= SWAP32(~0x404); | |
3776 | break; | |
3777 | } | |
3778 | case 2: // ExitCritical - enable irqs | |
3779 | tcb->sr |= SWAP32(0x404); | |
3780 | break; | |
3781 | ||
3782 | case 3: { // ChangeThreadSubFunction | |
3783 | u32 tcbPtr = loadRam32(A_TT_PCB); | |
607dd967 | 3784 | storeRam32(tcbPtr, SWAP32(tcb->reg[5])); // a1 |
9415f066 | 3785 | break; |
ef79bbde | 3786 | } |
9415f066 | 3787 | default: |
1fe066c6 | 3788 | DeliverEvent(0xf0000010, 0x4000); |
9415f066 | 3789 | break; |
ef79bbde | 3790 | } |
9415f066 | 3791 | use_cycles(30); |
3792 | psxBios_ReturnFromException(); | |
ef79bbde P |
3793 | } |
3794 | ||
9415f066 | 3795 | void hleExc1_0_1(void) |
3796 | { | |
3797 | u32 vbl_irq_ack_enable = loadRam32(A_RCNT_VBL_ACK + 0x0c); // 860c | |
3798 | handle_chain_x_x_1(vbl_irq_ack_enable, 0); // IRQ0 vblank | |
3799 | } | |
ef79bbde | 3800 | |
9415f066 | 3801 | static void handle_chain_1_x_2(u32 ev_index, u32 irqbit) |
3802 | { | |
3803 | u32 ret = 0; | |
3804 | if (psxHu32(0x1074) & psxHu32(0x1070) & (1u << irqbit)) { | |
1fe066c6 | 3805 | DeliverEvent(0xf2000000 + ev_index, 0x0002); |
9415f066 | 3806 | ret = 1; |
3807 | } | |
3808 | mips_return_c(ret, 22); | |
3809 | } | |
ef79bbde | 3810 | |
9415f066 | 3811 | void hleExc1_0_2(void) |
3812 | { | |
3813 | handle_chain_1_x_2(3, 0); // IRQ0 vblank | |
3814 | } | |
ef79bbde | 3815 | |
9415f066 | 3816 | void hleExc1_1_1(void) |
3817 | { | |
3818 | u32 rcnt_irq_ack_enable = loadRam32(A_RCNT_VBL_ACK + 0x08); // 8608 | |
3819 | handle_chain_x_x_1(rcnt_irq_ack_enable, 6); // IRQ6 rcnt2 | |
3820 | } | |
ef79bbde | 3821 | |
9415f066 | 3822 | void hleExc1_1_2(void) |
3823 | { | |
3824 | handle_chain_1_x_2(2, 6); // IRQ6 rcnt2 | |
3825 | } | |
ef79bbde | 3826 | |
9415f066 | 3827 | void hleExc1_2_1(void) |
3828 | { | |
3829 | u32 rcnt_irq_ack_enable = loadRam32(A_RCNT_VBL_ACK + 0x04); // 8604 | |
3830 | handle_chain_x_x_1(rcnt_irq_ack_enable, 5); // IRQ5 rcnt1 | |
3831 | } | |
ef79bbde | 3832 | |
9415f066 | 3833 | void hleExc1_2_2(void) |
3834 | { | |
3835 | handle_chain_1_x_2(1, 5); // IRQ5 rcnt1 | |
3836 | } | |
ef79bbde | 3837 | |
9415f066 | 3838 | void hleExc1_3_1(void) |
3839 | { | |
3840 | u32 rcnt_irq_ack_enable = loadRam32(A_RCNT_VBL_ACK + 0x00); // 8600 | |
3841 | handle_chain_x_x_1(rcnt_irq_ack_enable, 4); // IRQ4 rcnt0 | |
3842 | } | |
ef79bbde | 3843 | |
9415f066 | 3844 | void hleExc1_3_2(void) |
3845 | { | |
3846 | handle_chain_1_x_2(0, 4); // IRQ4 rcnt0 | |
3847 | } | |
ef79bbde | 3848 | |
9415f066 | 3849 | void hleExc3_0_2_defint(void) |
3850 | { | |
3851 | static const struct { | |
3852 | u8 ev, irqbit; | |
3853 | } tab[] = { | |
3854 | { 3, 2 }, // cdrom | |
3855 | { 9, 9 }, // spu | |
3856 | { 2, 1 }, // gpu | |
3857 | { 10, 10 }, // io | |
3858 | { 11, 8 }, // sio | |
3859 | { 1, 0 }, // vbl | |
3860 | { 5, 4 }, // rcnt0 | |
3861 | { 6, 5 }, // rcnt1 | |
3862 | { 6, 6 }, // rcnt2 (bug) | |
3863 | { 8, 7 }, // sio rx | |
3864 | { 4, 3 }, // sio | |
3865 | }; | |
3866 | size_t i; | |
3867 | for (i = 0; i < sizeof(tab) / sizeof(tab[0]); i++) { | |
3868 | if (psxHu32(0x1074) & psxHu32(0x1070) & (1u << tab[i].irqbit)) { | |
1fe066c6 | 3869 | DeliverEvent(0xf0000000 + tab[i].ev, 0x1000); |
9415f066 | 3870 | use_cycles(7); |
3871 | } | |
ef79bbde | 3872 | |
9415f066 | 3873 | } |
3874 | mips_return_c(0, 11 + 7*11 + 7*11 + 12); | |
3875 | } | |
ef79bbde | 3876 | |
340addc5 | 3877 | void hleExcPadCard1(void) |
3878 | { | |
3879 | if (loadRam32(A_PAD_IRQR_ENA)) { | |
3880 | u8 *pad_buf1 = loadRam8ptr(A_PAD_INBUF + 0); | |
3881 | u8 *pad_buf2 = loadRam8ptr(A_PAD_INBUF + 4); | |
3882 | int i, bufcount; | |
3883 | ||
3884 | psxBios_PADpoll(1); | |
3885 | psxBios_PADpoll(2); | |
340addc5 | 3886 | use_cycles(100); |
e2f9c5e9 | 3887 | if (loadRam32(A_PAD_DR_DST)) |
3888 | psxBios_PAD_dr_(); | |
340addc5 | 3889 | } |
3890 | if (loadRam32(A_PAD_ACK_VBL)) | |
3891 | psxHwWrite16(0x1f801070, ~1); | |
3892 | if (loadRam32(A_CARD_IRQR_ENA)) { | |
3893 | // todo, maybe | |
3894 | } | |
3895 | ||
3896 | mips_return_c(0, 18); | |
3897 | } | |
3898 | ||
3899 | void hleExcPadCard2(void) | |
3900 | { | |
3901 | u32 ret = psxHu32(0x1074) & psxHu32(0x1070) & 1; | |
3902 | mips_return_c(ret, 15); | |
3903 | } | |
3904 | ||
9415f066 | 3905 | void psxBiosException() { |
3906 | u32 tcbPtr = loadRam32(A_TT_PCB); | |
3907 | u32 *chains = loadRam32ptr(A_TT_ExCB); | |
3908 | TCB *tcb = loadRam32ptr(tcbPtr); | |
3909 | u32 ptr, *chain; | |
3910 | int c, lim; | |
3911 | int i; | |
ef79bbde | 3912 | |
9415f066 | 3913 | // save the regs |
3914 | // $at, $v0, $v1 already saved by the mips code at A_EXCEPTION | |
3915 | for (i = 4; i < 32; i++) { | |
3916 | if (i == 26) // $k0 | |
3917 | continue; | |
3918 | tcb->reg[i] = SWAP32(psxRegs.GPR.r[i]); | |
3919 | } | |
3920 | tcb->lo = SWAP32(psxRegs.GPR.n.lo); | |
3921 | tcb->hi = SWAP32(psxRegs.GPR.n.hi); | |
7575a4aa | 3922 | //tcb->epc = SWAP32(psxRegs.CP0.n.EPC); // done by asm |
9415f066 | 3923 | tcb->sr = SWAP32(psxRegs.CP0.n.SR); |
3924 | tcb->cause = SWAP32(psxRegs.CP0.n.Cause); | |
3925 | sp = fp = loadRam32(A_EXC_SP); | |
3926 | gp = A_EXC_GP; | |
3927 | use_cycles(46); | |
3928 | ||
3929 | // do the chains (always 4) | |
3930 | for (c = lim = 0; c < 4; c++) { | |
3931 | if (chains[c * 2] == 0) | |
3932 | continue; | |
3933 | ptr = SWAP32(chains[c * 2]); | |
3934 | for (; ptr && lim < 100; ptr = SWAP32(chain[0])) { | |
3935 | chain = castRam32ptr(ptr); | |
3936 | use_cycles(14); | |
3937 | lim++; | |
3938 | if (chain[2] == 0) | |
3939 | continue; | |
3940 | softCallInException(SWAP32(chain[2])); | |
3941 | if (returned_from_exception()) | |
3942 | return; | |
ef79bbde | 3943 | |
9415f066 | 3944 | if (v0 == 0 || chain[1] == 0) |
3945 | continue; | |
3946 | softCallInException(SWAP32(chain[1])); | |
3947 | if (returned_from_exception()) | |
3948 | return; | |
3949 | } | |
ef79bbde | 3950 | } |
9415f066 | 3951 | assert(lim < 100); |
ef79bbde | 3952 | |
9415f066 | 3953 | // return from exception (custom or default) |
3954 | use_cycles(23); | |
3955 | ptr = loadRam32(A_EEXIT_PTR); | |
3956 | if (ptr != A_EEXIT_DEF) { | |
3957 | const struct jmp_buf_ *jmp_buf = castRam32ptr(ptr); | |
3958 | longjmp_load(jmp_buf); | |
3959 | v0 = 1; | |
3960 | pc0 = ra; | |
3961 | return; | |
3962 | } | |
3963 | psxBios_ReturnFromException(); | |
ef79bbde P |
3964 | } |
3965 | ||
3966 | #define bfreeze(ptr, size) { \ | |
3967 | if (Mode == 1) memcpy(&psxR[base], ptr, size); \ | |
3968 | if (Mode == 0) memcpy(ptr, &psxR[base], size); \ | |
3969 | base += size; \ | |
3970 | } | |
3971 | ||
3972 | #define bfreezes(ptr) bfreeze(ptr, sizeof(ptr)) | |
52cf8a87 | 3973 | #define bfreezel(ptr) bfreeze(ptr, sizeof(*(ptr))) |
ef79bbde P |
3974 | |
3975 | void psxBiosFreeze(int Mode) { | |
3976 | u32 base = 0x40000; | |
3977 | ||
ef79bbde | 3978 | bfreezes(FDesc); |
52cf8a87 | 3979 | bfreezes(ffile); |
3980 | bfreezel(&nfile); | |
ef79bbde | 3981 | } |