| 1 | /* |
| 2 | * (C) GraÅžvydas "notaz" Ignotas, 2010 |
| 3 | * |
| 4 | * This work is licensed under the terms of GNU GPL version 2 or later. |
| 5 | * See the COPYING file in the top-level directory. |
| 6 | */ |
| 7 | |
| 8 | #include <stdio.h> |
| 9 | |
| 10 | #include "emu_if.h" |
| 11 | #include "pcsxmem.h" |
| 12 | #include "../psxhle.h" |
| 13 | #include "../r3000a.h" |
| 14 | #include "../cdrom.h" |
| 15 | #include "../psxdma.h" |
| 16 | #include "../mdec.h" |
| 17 | |
| 18 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
| 19 | |
| 20 | //#define evprintf printf |
| 21 | #define evprintf(...) |
| 22 | |
| 23 | char invalid_code[0x100000]; |
| 24 | u32 event_cycles[PSXINT_COUNT]; |
| 25 | |
| 26 | static void schedule_timeslice(void) |
| 27 | { |
| 28 | u32 i, c = psxRegs.cycle; |
| 29 | s32 min, dif; |
| 30 | |
| 31 | min = psxNextsCounter + psxNextCounter - c; |
| 32 | for (i = 0; i < ARRAY_SIZE(event_cycles); i++) { |
| 33 | dif = event_cycles[i] - c; |
| 34 | //evprintf(" ev %d\n", dif); |
| 35 | if (0 < dif && dif < min) |
| 36 | min = dif; |
| 37 | } |
| 38 | next_interupt = c + min; |
| 39 | |
| 40 | #if 0 |
| 41 | static u32 cnt, last_cycle; |
| 42 | static u64 sum; |
| 43 | if (last_cycle) { |
| 44 | cnt++; |
| 45 | sum += psxRegs.cycle - last_cycle; |
| 46 | if ((cnt & 0xff) == 0) |
| 47 | printf("%u\n", (u32)(sum / cnt)); |
| 48 | } |
| 49 | last_cycle = psxRegs.cycle; |
| 50 | #endif |
| 51 | } |
| 52 | |
| 53 | typedef void (irq_func)(); |
| 54 | |
| 55 | static irq_func * const irq_funcs[] = { |
| 56 | [PSXINT_SIO] = sioInterrupt, |
| 57 | [PSXINT_CDR] = cdrInterrupt, |
| 58 | [PSXINT_CDREAD] = cdrReadInterrupt, |
| 59 | [PSXINT_GPUDMA] = gpuInterrupt, |
| 60 | [PSXINT_MDECOUTDMA] = mdec1Interrupt, |
| 61 | [PSXINT_SPUDMA] = spuInterrupt, |
| 62 | [PSXINT_MDECINDMA] = mdec0Interrupt, |
| 63 | [PSXINT_GPUOTCDMA] = gpuotcInterrupt, |
| 64 | [PSXINT_CDRDMA] = cdrDmaInterrupt, |
| 65 | [PSXINT_CDRLID] = cdrLidSeekInterrupt, |
| 66 | [PSXINT_CDRPLAY] = cdrPlayInterrupt, |
| 67 | }; |
| 68 | |
| 69 | /* local dupe of psxBranchTest, using event_cycles */ |
| 70 | static void irq_test(void) |
| 71 | { |
| 72 | u32 irqs = psxRegs.interrupt; |
| 73 | u32 cycle = psxRegs.cycle; |
| 74 | u32 irq, irq_bits; |
| 75 | |
| 76 | if ((psxRegs.cycle - psxNextsCounter) >= psxNextCounter) |
| 77 | psxRcntUpdate(); |
| 78 | |
| 79 | // irq_funcs() may queue more irqs |
| 80 | psxRegs.interrupt = 0; |
| 81 | |
| 82 | for (irq = 0, irq_bits = irqs; irq_bits != 0; irq++, irq_bits >>= 1) { |
| 83 | if (!(irq_bits & 1)) |
| 84 | continue; |
| 85 | if ((s32)(cycle - event_cycles[irq]) >= 0) { |
| 86 | irqs &= ~(1 << irq); |
| 87 | irq_funcs[irq](); |
| 88 | } |
| 89 | } |
| 90 | psxRegs.interrupt |= irqs; |
| 91 | |
| 92 | if ((psxHu32(0x1070) & psxHu32(0x1074)) && (Status & 0x401) == 0x401) { |
| 93 | psxException(0x400, 0); |
| 94 | pending_exception = 1; |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | void gen_interupt() |
| 99 | { |
| 100 | evprintf(" +ge %08x, %u->%u\n", psxRegs.pc, psxRegs.cycle, next_interupt); |
| 101 | #ifdef DRC_DBG |
| 102 | psxRegs.cycle += 2; |
| 103 | #endif |
| 104 | |
| 105 | irq_test(); |
| 106 | //psxBranchTest(); |
| 107 | //pending_exception = 1; |
| 108 | |
| 109 | schedule_timeslice(); |
| 110 | |
| 111 | evprintf(" -ge %08x, %u->%u (%d)\n", psxRegs.pc, psxRegs.cycle, |
| 112 | next_interupt, next_interupt - psxRegs.cycle); |
| 113 | } |
| 114 | |
| 115 | // from interpreter |
| 116 | extern void MTC0(int reg, u32 val); |
| 117 | |
| 118 | void pcsx_mtc0(u32 reg) |
| 119 | { |
| 120 | evprintf("MTC0 %d #%x @%08x %u\n", reg, readmem_word, psxRegs.pc, psxRegs.cycle); |
| 121 | MTC0(reg, readmem_word); |
| 122 | gen_interupt(); |
| 123 | } |
| 124 | |
| 125 | void pcsx_mtc0_ds(u32 reg) |
| 126 | { |
| 127 | evprintf("MTC0 %d #%x @%08x %u\n", reg, readmem_word, psxRegs.pc, psxRegs.cycle); |
| 128 | MTC0(reg, readmem_word); |
| 129 | } |
| 130 | |
| 131 | void new_dyna_save(void) |
| 132 | { |
| 133 | // psxRegs.intCycle is always maintained, no need to convert |
| 134 | } |
| 135 | |
| 136 | void new_dyna_restore(void) |
| 137 | { |
| 138 | int i; |
| 139 | for (i = 0; i < PSXINT_COUNT; i++) |
| 140 | event_cycles[i] = psxRegs.intCycle[i].sCycle + psxRegs.intCycle[i].cycle; |
| 141 | } |
| 142 | |
| 143 | void *gte_handlers[64]; |
| 144 | |
| 145 | /* from gte.txt.. not sure if this is any good. */ |
| 146 | const char gte_cycletab[64] = { |
| 147 | /* 1 2 3 4 5 6 7 8 9 a b c d e f */ |
| 148 | 0, 15, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 6, 0, 0, 0, |
| 149 | 8, 8, 8, 19, 13, 0, 44, 0, 0, 0, 0, 17, 11, 0, 14, 0, |
| 150 | 30, 0, 0, 0, 0, 0, 0, 0, 5, 8, 17, 0, 0, 5, 6, 0, |
| 151 | 23, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 5, 39, |
| 152 | }; |
| 153 | |
| 154 | static int ari64_init() |
| 155 | { |
| 156 | extern void (*psxCP2[64])(); |
| 157 | extern void psxNULL(); |
| 158 | extern void *psxH_ptr; |
| 159 | size_t i; |
| 160 | |
| 161 | new_dynarec_init(); |
| 162 | new_dyna_pcsx_mem_init(); |
| 163 | |
| 164 | for (i = 0; i < ARRAY_SIZE(gte_handlers); i++) |
| 165 | if (psxCP2[i] != psxNULL) |
| 166 | gte_handlers[i] = psxCP2[i]; |
| 167 | |
| 168 | psxH_ptr = psxH; |
| 169 | |
| 170 | return 0; |
| 171 | } |
| 172 | |
| 173 | static void ari64_reset() |
| 174 | { |
| 175 | printf("ari64_reset\n"); |
| 176 | new_dyna_pcsx_mem_reset(); |
| 177 | invalidate_all_pages(); |
| 178 | new_dyna_restore(); |
| 179 | pending_exception = 1; |
| 180 | } |
| 181 | |
| 182 | // execute until predefined leave points |
| 183 | // (HLE softcall exit and BIOS fastboot end) |
| 184 | static void ari64_execute_until() |
| 185 | { |
| 186 | schedule_timeslice(); |
| 187 | |
| 188 | evprintf("ari64_execute %08x, %u->%u (%d)\n", psxRegs.pc, |
| 189 | psxRegs.cycle, next_interupt, next_interupt - psxRegs.cycle); |
| 190 | |
| 191 | new_dyna_start(); |
| 192 | |
| 193 | evprintf("ari64_execute end %08x, %u->%u (%d)\n", psxRegs.pc, |
| 194 | psxRegs.cycle, next_interupt, next_interupt - psxRegs.cycle); |
| 195 | } |
| 196 | |
| 197 | static void ari64_execute() |
| 198 | { |
| 199 | while (!stop) { |
| 200 | ari64_execute_until(); |
| 201 | evprintf("drc left @%08x\n", psxRegs.pc); |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | static void ari64_clear(u32 addr, u32 size) |
| 206 | { |
| 207 | u32 start, end, main_ram; |
| 208 | |
| 209 | size *= 4; /* PCSX uses DMA units */ |
| 210 | |
| 211 | evprintf("ari64_clear %08x %04x\n", addr, size); |
| 212 | |
| 213 | /* check for RAM mirrors */ |
| 214 | main_ram = (addr & 0xffe00000) == 0x80000000; |
| 215 | |
| 216 | start = addr >> 12; |
| 217 | end = (addr + size) >> 12; |
| 218 | |
| 219 | for (; start <= end; start++) |
| 220 | if (!main_ram || !invalid_code[start]) |
| 221 | invalidate_block(start); |
| 222 | } |
| 223 | |
| 224 | static void ari64_shutdown() |
| 225 | { |
| 226 | new_dynarec_cleanup(); |
| 227 | } |
| 228 | |
| 229 | extern void intExecute(); |
| 230 | extern void intExecuteT(); |
| 231 | extern void intExecuteBlock(); |
| 232 | extern void intExecuteBlockT(); |
| 233 | #ifndef DRC_DBG |
| 234 | #define intExecuteT intExecute |
| 235 | #define intExecuteBlockT intExecuteBlock |
| 236 | #endif |
| 237 | |
| 238 | R3000Acpu psxRec = { |
| 239 | ari64_init, |
| 240 | ari64_reset, |
| 241 | #if defined(__arm__) |
| 242 | ari64_execute, |
| 243 | ari64_execute_until, |
| 244 | #else |
| 245 | intExecuteT, |
| 246 | intExecuteBlockT, |
| 247 | #endif |
| 248 | ari64_clear, |
| 249 | ari64_shutdown |
| 250 | }; |
| 251 | |
| 252 | // TODO: rm |
| 253 | #ifndef DRC_DBG |
| 254 | void do_insn_trace() {} |
| 255 | void do_insn_cmp() {} |
| 256 | #endif |
| 257 | |
| 258 | #if defined(__x86_64__) || defined(__i386__) |
| 259 | unsigned int address, readmem_word, word; |
| 260 | unsigned short hword; |
| 261 | unsigned char byte; |
| 262 | int pending_exception, stop; |
| 263 | unsigned int next_interupt; |
| 264 | void *psxH_ptr; |
| 265 | void new_dynarec_init() {} |
| 266 | void new_dyna_start() {} |
| 267 | void new_dynarec_cleanup() {} |
| 268 | void invalidate_all_pages() {} |
| 269 | void invalidate_block(unsigned int block) {} |
| 270 | void new_dyna_pcsx_mem_init(void) {} |
| 271 | void new_dyna_pcsx_mem_reset(void) {} |
| 272 | #endif |
| 273 | |
| 274 | #ifdef DRC_DBG |
| 275 | |
| 276 | #include <stddef.h> |
| 277 | static FILE *f; |
| 278 | extern u32 last_io_addr; |
| 279 | |
| 280 | static void dump_mem(const char *fname, void *mem, size_t size) |
| 281 | { |
| 282 | FILE *f1 = fopen(fname, "wb"); |
| 283 | if (f1 == NULL) |
| 284 | f1 = fopen(strrchr(fname, '/') + 1, "wb"); |
| 285 | fwrite(mem, 1, size, f1); |
| 286 | fclose(f1); |
| 287 | } |
| 288 | |
| 289 | static u32 memcheck_read(u32 a) |
| 290 | { |
| 291 | if ((a >> 16) == 0x1f80) |
| 292 | // scratchpad/IO |
| 293 | return *(u32 *)(psxH + (a & 0xfffc)); |
| 294 | |
| 295 | if ((a >> 16) == 0x1f00) |
| 296 | // parallel |
| 297 | return *(u32 *)(psxP + (a & 0xfffc)); |
| 298 | |
| 299 | // if ((a & ~0xe0600000) < 0x200000) |
| 300 | // RAM |
| 301 | return *(u32 *)(psxM + (a & 0x1ffffc)); |
| 302 | } |
| 303 | |
| 304 | void do_insn_trace(void) |
| 305 | { |
| 306 | static psxRegisters oldregs; |
| 307 | static u32 old_io_addr = (u32)-1; |
| 308 | static u32 old_io_data = 0xbad0c0de; |
| 309 | u32 *allregs_p = (void *)&psxRegs; |
| 310 | u32 *allregs_o = (void *)&oldregs; |
| 311 | u32 io_data; |
| 312 | int i; |
| 313 | u8 byte; |
| 314 | |
| 315 | //last_io_addr = 0x5e2c8; |
| 316 | if (f == NULL) |
| 317 | f = fopen("tracelog", "wb"); |
| 318 | |
| 319 | oldregs.code = psxRegs.code; // don't care |
| 320 | for (i = 0; i < offsetof(psxRegisters, intCycle) / 4; i++) { |
| 321 | if (allregs_p[i] != allregs_o[i]) { |
| 322 | fwrite(&i, 1, 1, f); |
| 323 | fwrite(&allregs_p[i], 1, 4, f); |
| 324 | allregs_o[i] = allregs_p[i]; |
| 325 | } |
| 326 | } |
| 327 | if (old_io_addr != last_io_addr) { |
| 328 | byte = 0xfd; |
| 329 | fwrite(&byte, 1, 1, f); |
| 330 | fwrite(&last_io_addr, 1, 4, f); |
| 331 | old_io_addr = last_io_addr; |
| 332 | } |
| 333 | io_data = memcheck_read(last_io_addr); |
| 334 | if (old_io_data != io_data) { |
| 335 | byte = 0xfe; |
| 336 | fwrite(&byte, 1, 1, f); |
| 337 | fwrite(&io_data, 1, 4, f); |
| 338 | old_io_data = io_data; |
| 339 | } |
| 340 | byte = 0xff; |
| 341 | fwrite(&byte, 1, 1, f); |
| 342 | |
| 343 | #if 0 |
| 344 | if (psxRegs.cycle == 190230) { |
| 345 | dump_mem("/mnt/ntz/dev/pnd/tmp/psxram_i.dump", psxM, 0x200000); |
| 346 | dump_mem("/mnt/ntz/dev/pnd/tmp/psxregs_i.dump", psxH, 0x10000); |
| 347 | printf("dumped\n"); |
| 348 | exit(1); |
| 349 | } |
| 350 | #endif |
| 351 | } |
| 352 | |
| 353 | static const char *regnames[offsetof(psxRegisters, intCycle) / 4] = { |
| 354 | "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", |
| 355 | "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", |
| 356 | "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", |
| 357 | "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", |
| 358 | "lo", "hi", |
| 359 | "C0_0", "C0_1", "C0_2", "C0_3", "C0_4", "C0_5", "C0_6", "C0_7", |
| 360 | "C0_8", "C0_9", "C0_10", "C0_11", "C0_12", "C0_13", "C0_14", "C0_15", |
| 361 | "C0_16", "C0_17", "C0_18", "C0_19", "C0_20", "C0_21", "C0_22", "C0_23", |
| 362 | "C0_24", "C0_25", "C0_26", "C0_27", "C0_28", "C0_29", "C0_30", "C0_31", |
| 363 | |
| 364 | "C2D0", "C2D1", "C2D2", "C2D3", "C2D4", "C2D5", "C2D6", "C2D7", |
| 365 | "C2D8", "C2D9", "C2D10", "C2D11", "C2D12", "C2D13", "C2D14", "C2D15", |
| 366 | "C2D16", "C2D17", "C2D18", "C2D19", "C2D20", "C2D21", "C2D22", "C2D23", |
| 367 | "C2D24", "C2D25", "C2D26", "C2D27", "C2D28", "C2D29", "C2D30", "C2D31", |
| 368 | |
| 369 | "C2C0", "C2C1", "C2C2", "C2C3", "C2C4", "C2C5", "C2C6", "C2C7", |
| 370 | "C2C8", "C2C9", "C2C10", "C2C11", "C2C12", "C2C13", "C2C14", "C2C15", |
| 371 | "C2C16", "C2C17", "C2C18", "C2C19", "C2C20", "C2C21", "C2C22", "C2C23", |
| 372 | "C2C24", "C2C25", "C2C26", "C2C27", "C2C28", "C2C29", "C2C30", "C2C31", |
| 373 | |
| 374 | "PC", "code", "cycle", "interrupt", |
| 375 | }; |
| 376 | |
| 377 | static struct { |
| 378 | int reg; |
| 379 | u32 val, val_expect; |
| 380 | u32 pc, cycle; |
| 381 | } miss_log[64]; |
| 382 | static int miss_log_i; |
| 383 | #define miss_log_len (sizeof(miss_log)/sizeof(miss_log[0])) |
| 384 | #define miss_log_mask (miss_log_len-1) |
| 385 | |
| 386 | static void miss_log_add(int reg, u32 val, u32 val_expect, u32 pc, u32 cycle) |
| 387 | { |
| 388 | miss_log[miss_log_i].reg = reg; |
| 389 | miss_log[miss_log_i].val = val; |
| 390 | miss_log[miss_log_i].val_expect = val_expect; |
| 391 | miss_log[miss_log_i].pc = pc; |
| 392 | miss_log[miss_log_i].cycle = cycle; |
| 393 | miss_log_i = (miss_log_i + 1) & miss_log_mask; |
| 394 | } |
| 395 | |
| 396 | void breakme() {} |
| 397 | |
| 398 | void do_insn_cmp(void) |
| 399 | { |
| 400 | static psxRegisters rregs; |
| 401 | static u32 mem_addr, mem_val; |
| 402 | u32 *allregs_p = (void *)&psxRegs; |
| 403 | u32 *allregs_e = (void *)&rregs; |
| 404 | static u32 ppc, failcount; |
| 405 | int i, ret, bad = 0; |
| 406 | u8 code; |
| 407 | |
| 408 | if (f == NULL) |
| 409 | f = fopen("tracelog", "rb"); |
| 410 | |
| 411 | while (1) { |
| 412 | if ((ret = fread(&code, 1, 1, f)) <= 0) |
| 413 | break; |
| 414 | if (ret <= 0) |
| 415 | break; |
| 416 | if (code == 0xff) |
| 417 | break; |
| 418 | if (code == 0xfd) { |
| 419 | if ((ret = fread(&mem_addr, 1, 4, f)) <= 0) |
| 420 | break; |
| 421 | continue; |
| 422 | } |
| 423 | if (code == 0xfe) { |
| 424 | if ((ret = fread(&mem_val, 1, 4, f)) <= 0) |
| 425 | break; |
| 426 | continue; |
| 427 | } |
| 428 | if ((ret = fread(&allregs_e[code], 1, 4, f)) <= 0) |
| 429 | break; |
| 430 | } |
| 431 | |
| 432 | if (ret <= 0) { |
| 433 | printf("EOF?\n"); |
| 434 | goto end; |
| 435 | } |
| 436 | |
| 437 | psxRegs.code = rregs.code; // don't care |
| 438 | psxRegs.cycle = rregs.cycle; |
| 439 | psxRegs.CP0.r[9] = rregs.CP0.r[9]; // Count |
| 440 | |
| 441 | //if (psxRegs.cycle == 166172) breakme(); |
| 442 | |
| 443 | if (memcmp(&psxRegs, &rregs, offsetof(psxRegisters, intCycle)) == 0 && |
| 444 | mem_val == memcheck_read(mem_addr) |
| 445 | ) { |
| 446 | failcount = 0; |
| 447 | goto ok; |
| 448 | } |
| 449 | |
| 450 | for (i = 0; i < offsetof(psxRegisters, intCycle) / 4; i++) { |
| 451 | if (allregs_p[i] != allregs_e[i]) { |
| 452 | miss_log_add(i, allregs_p[i], allregs_e[i], psxRegs.pc, psxRegs.cycle); |
| 453 | bad++; |
| 454 | } |
| 455 | } |
| 456 | |
| 457 | if (mem_val != memcheck_read(mem_addr)) { |
| 458 | printf("bad mem @%08x: %08x %08x\n", mem_addr, memcheck_read(mem_addr), mem_val); |
| 459 | goto end; |
| 460 | } |
| 461 | |
| 462 | if (psxRegs.pc == rregs.pc && bad < 6 && failcount < 32) { |
| 463 | static int last_mcycle; |
| 464 | if (last_mcycle != psxRegs.cycle >> 20) { |
| 465 | printf("%u\n", psxRegs.cycle); |
| 466 | last_mcycle = psxRegs.cycle >> 20; |
| 467 | } |
| 468 | failcount++; |
| 469 | goto ok; |
| 470 | } |
| 471 | |
| 472 | end: |
| 473 | for (i = 0; i < miss_log_len; i++, miss_log_i = (miss_log_i + 1) & miss_log_mask) |
| 474 | printf("bad %5s: %08x %08x, pc=%08x, cycle %u\n", |
| 475 | regnames[miss_log[miss_log_i].reg], miss_log[miss_log_i].val, |
| 476 | miss_log[miss_log_i].val_expect, miss_log[miss_log_i].pc, miss_log[miss_log_i].cycle); |
| 477 | printf("-- %d\n", bad); |
| 478 | for (i = 0; i < 8; i++) |
| 479 | printf("r%d=%08x r%2d=%08x r%2d=%08x r%2d=%08x\n", i, allregs_p[i], |
| 480 | i+8, allregs_p[i+8], i+16, allregs_p[i+16], i+24, allregs_p[i+24]); |
| 481 | printf("PC: %08x/%08x, cycle %u\n", psxRegs.pc, ppc, psxRegs.cycle); |
| 482 | dump_mem("/mnt/ntz/dev/pnd/tmp/psxram.dump", psxM, 0x200000); |
| 483 | dump_mem("/mnt/ntz/dev/pnd/tmp/psxregs.dump", psxH, 0x10000); |
| 484 | exit(1); |
| 485 | ok: |
| 486 | psxRegs.cycle = rregs.cycle + 2; // sync timing |
| 487 | ppc = psxRegs.pc; |
| 488 | } |
| 489 | |
| 490 | #endif |