| 1 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
| 2 | * Mupen64plus-rsp-hle - main.c * |
| 3 | * Mupen64Plus homepage: http://code.google.com/p/mupen64plus/ * |
| 4 | * Copyright (C) 2012 Bobby Smiles * |
| 5 | * Copyright (C) 2009 Richard Goedeken * |
| 6 | * Copyright (C) 2002 Hacktarux * |
| 7 | * * |
| 8 | * This program is free software; you can redistribute it and/or modify * |
| 9 | * it under the terms of the GNU General Public License as published by * |
| 10 | * the Free Software Foundation; either version 2 of the License, or * |
| 11 | * (at your option) any later version. * |
| 12 | * * |
| 13 | * This program is distributed in the hope that it will be useful, * |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
| 16 | * GNU General Public License for more details. * |
| 17 | * * |
| 18 | * You should have received a copy of the GNU General Public License * |
| 19 | * along with this program; if not, write to the * |
| 20 | * Free Software Foundation, Inc., * |
| 21 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * |
| 22 | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
| 23 | |
| 24 | #include <stdarg.h> |
| 25 | #include <string.h> |
| 26 | #include <stdio.h> |
| 27 | |
| 28 | #define M64P_PLUGIN_PROTOTYPES 1 |
| 29 | #include "m64p_types.h" |
| 30 | #include "m64p_common.h" |
| 31 | #include "m64p_plugin.h" |
| 32 | #include "hle.h" |
| 33 | #include "alist.h" |
| 34 | #include "cicx105.h" |
| 35 | #include "jpeg.h" |
| 36 | |
| 37 | #define min(a,b) (((a) < (b)) ? (a) : (b)) |
| 38 | |
| 39 | /* some rsp status flags */ |
| 40 | #define RSP_STATUS_HALT 0x1 |
| 41 | #define RSP_STATUS_BROKE 0x2 |
| 42 | #define RSP_STATUS_INTR_ON_BREAK 0x40 |
| 43 | #define RSP_STATUS_TASKDONE 0x200 |
| 44 | |
| 45 | /* some rdp status flags */ |
| 46 | #define DP_STATUS_FREEZE 0x2 |
| 47 | |
| 48 | /* some mips interface interrupt flags */ |
| 49 | #define MI_INTR_SP 0x1 |
| 50 | |
| 51 | |
| 52 | /* helper functions prototypes */ |
| 53 | static unsigned int sum_bytes(const unsigned char *bytes, unsigned int size); |
| 54 | static void dump_binary(const char * const filename, const unsigned char * const bytes, |
| 55 | unsigned int size); |
| 56 | static void dump_task(const char * const filename, const OSTask_t * const task); |
| 57 | |
| 58 | static void handle_unknown_task(unsigned int sum); |
| 59 | static void handle_unknown_non_task(unsigned int sum); |
| 60 | |
| 61 | /* global variables */ |
| 62 | RSP_INFO rsp; |
| 63 | |
| 64 | /* local variables */ |
| 65 | static const int FORWARD_AUDIO = 0, FORWARD_GFX = 1; |
| 66 | static void (*l_DebugCallback)(void *, int, const char *) = NULL; |
| 67 | static void *l_DebugCallContext = NULL; |
| 68 | static int l_PluginInit = 0; |
| 69 | |
| 70 | /* local functions */ |
| 71 | |
| 72 | |
| 73 | /** |
| 74 | * Try to figure if the RSP was launched using osSpTask* functions |
| 75 | * and not run directly (in which case DMEM[0xfc0-0xfff] is meaningless). |
| 76 | * |
| 77 | * Previously, the ucode_size field was used to determine this, |
| 78 | * but it is not robust enough (hi Pokemon Stadium !) because games could write anything |
| 79 | * in this field : most ucode_boot discard the value and just use 0xf7f anyway. |
| 80 | * |
| 81 | * Using ucode_boot_size should be more robust in this regard. |
| 82 | **/ |
| 83 | static int is_task() |
| 84 | { |
| 85 | return (get_task()->ucode_boot_size <= 0x1000); |
| 86 | } |
| 87 | |
| 88 | static void rsp_break(unsigned int setbits) |
| 89 | { |
| 90 | *rsp.SP_STATUS_REG |= setbits | RSP_STATUS_BROKE | RSP_STATUS_HALT; |
| 91 | |
| 92 | if ((*rsp.SP_STATUS_REG & RSP_STATUS_INTR_ON_BREAK)) |
| 93 | { |
| 94 | *rsp.MI_INTR_REG |= MI_INTR_SP; |
| 95 | rsp.CheckInterrupts(); |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | static void forward_gfx_task() |
| 100 | { |
| 101 | if (rsp.ProcessDlistList != NULL) |
| 102 | { |
| 103 | rsp.ProcessDlistList(); |
| 104 | *rsp.DPC_STATUS_REG &= ~DP_STATUS_FREEZE; |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | static void forward_audio_task() |
| 109 | { |
| 110 | if (rsp.ProcessAlistList != NULL) |
| 111 | { |
| 112 | rsp.ProcessAlistList(); |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | static void show_cfb() |
| 117 | { |
| 118 | if (rsp.ShowCFB != NULL) |
| 119 | { |
| 120 | rsp.ShowCFB(); |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | static int try_fast_audio_dispatching() |
| 125 | { |
| 126 | /* identify audio ucode by using the content of ucode_data */ |
| 127 | const OSTask_t * const task = get_task(); |
| 128 | const unsigned char * const udata_ptr = rsp.RDRAM + task->ucode_data; |
| 129 | |
| 130 | if (*(unsigned int*)(udata_ptr + 0) == 0x00000001) |
| 131 | { |
| 132 | if (*(unsigned int*)(udata_ptr + 0x30) == 0xf0000f00) |
| 133 | { |
| 134 | /** |
| 135 | * Many games including: |
| 136 | * Super Mario 64, Diddy Kong Racing, BlastCorp, GoldenEye, ... (most common) |
| 137 | **/ |
| 138 | alist_process_ABI1(); return 1; |
| 139 | } |
| 140 | else |
| 141 | { |
| 142 | /** |
| 143 | * Mario Kart / Wave Race, |
| 144 | * LylatWars, |
| 145 | * FZeroX, |
| 146 | * Yoshi Story, |
| 147 | * 1080 Snowboarding, |
| 148 | * Zelda Ocarina of Time, |
| 149 | * Zelda Majoras Mask / Pokemon Stadium 2, |
| 150 | * Animal Crossing |
| 151 | * |
| 152 | * FIXME: in fact, all these games do not share the same ABI. |
| 153 | * That's the reason of the workaround in ucode2.cpp with isZeldaABI and isMKABI |
| 154 | **/ |
| 155 | alist_process_ABI2(); return 1; |
| 156 | } |
| 157 | } |
| 158 | else |
| 159 | { |
| 160 | if (*(unsigned int*)(udata_ptr + 0x10) == 0x00000001) |
| 161 | { |
| 162 | /** |
| 163 | * Musyx ucode found in following games: |
| 164 | * RogueSquadron, ResidentEvil2, SnowCrossPolaris, TheWorldIsNotEnough, |
| 165 | * RugratsInParis, NBAShowTime, HydroThunder, Tarzan, |
| 166 | * GauntletLegend, Rush2049, IndianaJones, BattleForNaboo |
| 167 | * TODO: implement ucode |
| 168 | **/ |
| 169 | DebugMessage(M64MSG_WARNING, "MusyX ucode not implemented."); |
| 170 | /* return 1; */ |
| 171 | } |
| 172 | else |
| 173 | { |
| 174 | /** |
| 175 | * Many games including: |
| 176 | * Pokemon Stadium, Banjo Kazooie, Donkey Kong, Banjo Tooie, Jet Force Gemini, |
| 177 | * Mickey SpeedWay USA, Perfect Dark, Conker Bad Fur Day ... |
| 178 | **/ |
| 179 | alist_process_ABI3(); return 1; |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | return 0; |
| 184 | } |
| 185 | |
| 186 | static int try_fast_task_dispatching() |
| 187 | { |
| 188 | /* identify task ucode by its type */ |
| 189 | const OSTask_t * const task = get_task(); |
| 190 | |
| 191 | switch (task->type) |
| 192 | { |
| 193 | case 1: if (FORWARD_GFX) { forward_gfx_task(); return 1; } break; |
| 194 | |
| 195 | case 2: |
| 196 | if (FORWARD_AUDIO) { forward_audio_task(); return 1; } |
| 197 | else if (try_fast_audio_dispatching()) { return 1; } |
| 198 | break; |
| 199 | |
| 200 | case 7: show_cfb(); return 1; |
| 201 | } |
| 202 | |
| 203 | return 0; |
| 204 | } |
| 205 | |
| 206 | static void normal_task_dispatching() |
| 207 | { |
| 208 | const OSTask_t * const task = get_task(); |
| 209 | const unsigned int sum = |
| 210 | sum_bytes(rsp.RDRAM + task->ucode, min(task->ucode_size, 0xf80) >> 1); |
| 211 | |
| 212 | switch (sum) |
| 213 | { |
| 214 | /* StoreVe12: found in Zelda Ocarina of Time [misleading task->type == 4] */ |
| 215 | case 0x278: /* Nothing to emulate */ return; |
| 216 | |
| 217 | /* GFX: Twintris [misleading task->type == 0] */ |
| 218 | case 0x212ee: |
| 219 | if (FORWARD_GFX) { forward_gfx_task(); return; } |
| 220 | break; |
| 221 | |
| 222 | /* JPEG: found in Pokemon Stadium J */ |
| 223 | case 0x2c85a: jpeg_decode_PS0(); return; |
| 224 | |
| 225 | /* JPEG: found in Zelda Ocarina of Time, Pokemon Stadium 1, Pokemon Stadium 2 */ |
| 226 | case 0x2caa6: jpeg_decode_PS(); return; |
| 227 | |
| 228 | /* JPEG: found in Ogre Battle, Bottom of the 9th */ |
| 229 | case 0x130de: jpeg_decode_OB(); return; |
| 230 | } |
| 231 | |
| 232 | handle_unknown_task(sum); |
| 233 | } |
| 234 | |
| 235 | static void non_task_dispatching() |
| 236 | { |
| 237 | const unsigned int sum = sum_bytes(rsp.IMEM, 0x1000 >> 1); |
| 238 | |
| 239 | switch(sum) |
| 240 | { |
| 241 | /* CIC x105 ucode (used during boot of CIC x105 games) */ |
| 242 | case 0x9e2: /* CIC 6105 */ |
| 243 | case 0x9f2: /* CIC 7105 */ |
| 244 | cicx105_ucode(); return; |
| 245 | } |
| 246 | |
| 247 | handle_unknown_non_task(sum); |
| 248 | } |
| 249 | |
| 250 | static void handle_unknown_task(unsigned int sum) |
| 251 | { |
| 252 | char filename[256]; |
| 253 | const OSTask_t * const task = get_task(); |
| 254 | |
| 255 | DebugMessage(M64MSG_WARNING, "unknown OSTask: sum %x PC:%x", sum, *rsp.SP_PC_REG); |
| 256 | |
| 257 | sprintf(&filename[0], "task_%x.log", sum); |
| 258 | dump_task(filename, task); |
| 259 | |
| 260 | // dump ucode_boot |
| 261 | sprintf(&filename[0], "ucode_boot_%x.bin", sum); |
| 262 | dump_binary(filename, rsp.RDRAM + (task->ucode_boot & 0x7fffff), task->ucode_boot_size); |
| 263 | |
| 264 | // dump ucode |
| 265 | if (task->ucode != 0) |
| 266 | { |
| 267 | sprintf(&filename[0], "ucode_%x.bin", sum); |
| 268 | dump_binary(filename, rsp.RDRAM + (task->ucode & 0x7fffff), 0xf80); |
| 269 | } |
| 270 | |
| 271 | // dump ucode_data |
| 272 | if (task->ucode_data != 0) |
| 273 | { |
| 274 | sprintf(&filename[0], "ucode_data_%x.bin", sum); |
| 275 | dump_binary(filename, rsp.RDRAM + (task->ucode_data & 0x7fffff), task->ucode_data_size); |
| 276 | } |
| 277 | |
| 278 | // dump data |
| 279 | if (task->data_ptr != 0) |
| 280 | { |
| 281 | sprintf(&filename[0], "data_%x.bin", sum); |
| 282 | dump_binary(filename, rsp.RDRAM + (task->data_ptr & 0x7fffff), task->data_size); |
| 283 | } |
| 284 | } |
| 285 | |
| 286 | static void handle_unknown_non_task(unsigned int sum) |
| 287 | { |
| 288 | char filename[256]; |
| 289 | |
| 290 | DebugMessage(M64MSG_WARNING, "unknown RSP code: sum: %x PC:%x", sum, *rsp.SP_PC_REG); |
| 291 | |
| 292 | // dump IMEM & DMEM for further analysis |
| 293 | sprintf(&filename[0], "imem_%x.bin", sum); |
| 294 | dump_binary(filename, rsp.IMEM, 0x1000); |
| 295 | |
| 296 | sprintf(&filename[0], "dmem_%x.bin", sum); |
| 297 | dump_binary(filename, rsp.DMEM, 0x1000); |
| 298 | } |
| 299 | |
| 300 | |
| 301 | /* Global functions */ |
| 302 | void DebugMessage(int level, const char *message, ...) |
| 303 | { |
| 304 | char msgbuf[1024]; |
| 305 | va_list args; |
| 306 | |
| 307 | if (l_DebugCallback == NULL) |
| 308 | return; |
| 309 | |
| 310 | va_start(args, message); |
| 311 | vsprintf(msgbuf, message, args); |
| 312 | |
| 313 | (*l_DebugCallback)(l_DebugCallContext, level, msgbuf); |
| 314 | |
| 315 | va_end(args); |
| 316 | } |
| 317 | |
| 318 | /* DLL-exported functions */ |
| 319 | EXPORT m64p_error CALL PluginStartup(m64p_dynlib_handle CoreLibHandle, void *Context, |
| 320 | void (*DebugCallback)(void *, int, const char *)) |
| 321 | { |
| 322 | if (l_PluginInit) |
| 323 | return M64ERR_ALREADY_INIT; |
| 324 | |
| 325 | /* first thing is to set the callback function for debug info */ |
| 326 | l_DebugCallback = DebugCallback; |
| 327 | l_DebugCallContext = Context; |
| 328 | |
| 329 | /* this plugin doesn't use any Core library functions (ex for Configuration), so no need to keep the CoreLibHandle */ |
| 330 | |
| 331 | l_PluginInit = 1; |
| 332 | return M64ERR_SUCCESS; |
| 333 | } |
| 334 | |
| 335 | EXPORT m64p_error CALL PluginShutdown(void) |
| 336 | { |
| 337 | if (!l_PluginInit) |
| 338 | return M64ERR_NOT_INIT; |
| 339 | |
| 340 | /* reset some local variable */ |
| 341 | l_DebugCallback = NULL; |
| 342 | l_DebugCallContext = NULL; |
| 343 | |
| 344 | l_PluginInit = 0; |
| 345 | return M64ERR_SUCCESS; |
| 346 | } |
| 347 | |
| 348 | EXPORT m64p_error CALL PluginGetVersion(m64p_plugin_type *PluginType, int *PluginVersion, int *APIVersion, const char **PluginNamePtr, int *Capabilities) |
| 349 | { |
| 350 | /* set version info */ |
| 351 | if (PluginType != NULL) |
| 352 | *PluginType = M64PLUGIN_RSP; |
| 353 | |
| 354 | if (PluginVersion != NULL) |
| 355 | *PluginVersion = RSP_HLE_VERSION; |
| 356 | |
| 357 | if (APIVersion != NULL) |
| 358 | *APIVersion = RSP_PLUGIN_API_VERSION; |
| 359 | |
| 360 | if (PluginNamePtr != NULL) |
| 361 | *PluginNamePtr = "Hacktarux/Azimer High-Level Emulation RSP Plugin"; |
| 362 | |
| 363 | if (Capabilities != NULL) |
| 364 | { |
| 365 | *Capabilities = 0; |
| 366 | } |
| 367 | |
| 368 | return M64ERR_SUCCESS; |
| 369 | } |
| 370 | |
| 371 | EXPORT unsigned int CALL DoRspCycles(unsigned int Cycles) |
| 372 | { |
| 373 | if (is_task()) |
| 374 | { |
| 375 | if (!try_fast_task_dispatching()) { normal_task_dispatching(); } |
| 376 | rsp_break(RSP_STATUS_TASKDONE); |
| 377 | } |
| 378 | else |
| 379 | { |
| 380 | non_task_dispatching(); |
| 381 | rsp_break(0); |
| 382 | } |
| 383 | |
| 384 | return Cycles; |
| 385 | } |
| 386 | |
| 387 | EXPORT void CALL InitiateRSP(RSP_INFO Rsp_Info, unsigned int *CycleCount) |
| 388 | { |
| 389 | rsp = Rsp_Info; |
| 390 | } |
| 391 | |
| 392 | EXPORT void CALL RomClosed(void) |
| 393 | { |
| 394 | memset(rsp.DMEM, 0, 0x1000); |
| 395 | memset(rsp.IMEM, 0, 0x1000); |
| 396 | |
| 397 | init_ucode2(); |
| 398 | } |
| 399 | |
| 400 | |
| 401 | /* local helper functions */ |
| 402 | static unsigned int sum_bytes(const unsigned char *bytes, unsigned int size) |
| 403 | { |
| 404 | unsigned int sum = 0; |
| 405 | const unsigned char * const bytes_end = bytes + size; |
| 406 | |
| 407 | while (bytes != bytes_end) |
| 408 | sum += *bytes++; |
| 409 | |
| 410 | return sum; |
| 411 | } |
| 412 | |
| 413 | |
| 414 | static void dump_binary(const char * const filename, const unsigned char * const bytes, |
| 415 | unsigned int size) |
| 416 | { |
| 417 | FILE *f; |
| 418 | |
| 419 | // if file already exists, do nothing |
| 420 | f = fopen(filename, "r"); |
| 421 | if (f == NULL) |
| 422 | { |
| 423 | // else we write bytes to the file |
| 424 | f= fopen(filename, "wb"); |
| 425 | if (f != NULL) { |
| 426 | if (fwrite(bytes, 1, size, f) != size) |
| 427 | { |
| 428 | DebugMessage(M64MSG_ERROR, "Writing error on %s", filename); |
| 429 | } |
| 430 | fclose(f); |
| 431 | } |
| 432 | else |
| 433 | { |
| 434 | DebugMessage(M64MSG_ERROR, "Couldn't open %s for writing !", filename); |
| 435 | } |
| 436 | } |
| 437 | else |
| 438 | { |
| 439 | fclose(f); |
| 440 | } |
| 441 | } |
| 442 | |
| 443 | static void dump_task(const char * const filename, const OSTask_t * const task) |
| 444 | { |
| 445 | FILE *f; |
| 446 | |
| 447 | f = fopen(filename, "r"); |
| 448 | if (f == NULL) |
| 449 | { |
| 450 | f = fopen(filename, "w"); |
| 451 | fprintf(f, |
| 452 | "type = %d\n" |
| 453 | "flags = %d\n" |
| 454 | "ucode_boot = %#08x size = %#x\n" |
| 455 | "ucode = %#08x size = %#x\n" |
| 456 | "ucode_data = %#08x size = %#x\n" |
| 457 | "dram_stack = %#08x size = %#x\n" |
| 458 | "output_buff = %#08x *size = %#x\n" |
| 459 | "data = %#08x size = %#x\n" |
| 460 | "yield_data = %#08x size = %#x\n", |
| 461 | task->type, task->flags, |
| 462 | task->ucode_boot, task->ucode_boot_size, |
| 463 | task->ucode, task->ucode_size, |
| 464 | task->ucode_data, task->ucode_data_size, |
| 465 | task->dram_stack, task->dram_stack_size, |
| 466 | task->output_buff, task->output_buff_size, |
| 467 | task->data_ptr, task->data_size, |
| 468 | task->yield_data_ptr, task->yield_data_size); |
| 469 | fclose(f); |
| 470 | } |
| 471 | else |
| 472 | { |
| 473 | fclose(f); |
| 474 | } |
| 475 | } |
| 476 | |