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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 */ |
2d262872 |
229 | case 0x130de: |
230 | case 0x278b0: |
231 | jpeg_decode_OB(); return; |
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232 | } |
233 | |
234 | handle_unknown_task(sum); |
235 | } |
236 | |
237 | static void non_task_dispatching() |
238 | { |
239 | const unsigned int sum = sum_bytes(rsp.IMEM, 0x1000 >> 1); |
240 | |
241 | switch(sum) |
242 | { |
243 | /* CIC x105 ucode (used during boot of CIC x105 games) */ |
244 | case 0x9e2: /* CIC 6105 */ |
245 | case 0x9f2: /* CIC 7105 */ |
246 | cicx105_ucode(); return; |
247 | } |
248 | |
249 | handle_unknown_non_task(sum); |
250 | } |
251 | |
252 | static void handle_unknown_task(unsigned int sum) |
253 | { |
254 | char filename[256]; |
255 | const OSTask_t * const task = get_task(); |
256 | |
257 | DebugMessage(M64MSG_WARNING, "unknown OSTask: sum %x PC:%x", sum, *rsp.SP_PC_REG); |
258 | |
259 | sprintf(&filename[0], "task_%x.log", sum); |
260 | dump_task(filename, task); |
261 | |
262 | // dump ucode_boot |
263 | sprintf(&filename[0], "ucode_boot_%x.bin", sum); |
264 | dump_binary(filename, rsp.RDRAM + (task->ucode_boot & 0x7fffff), task->ucode_boot_size); |
265 | |
266 | // dump ucode |
267 | if (task->ucode != 0) |
268 | { |
269 | sprintf(&filename[0], "ucode_%x.bin", sum); |
270 | dump_binary(filename, rsp.RDRAM + (task->ucode & 0x7fffff), 0xf80); |
271 | } |
272 | |
273 | // dump ucode_data |
274 | if (task->ucode_data != 0) |
275 | { |
276 | sprintf(&filename[0], "ucode_data_%x.bin", sum); |
277 | dump_binary(filename, rsp.RDRAM + (task->ucode_data & 0x7fffff), task->ucode_data_size); |
278 | } |
279 | |
280 | // dump data |
281 | if (task->data_ptr != 0) |
282 | { |
283 | sprintf(&filename[0], "data_%x.bin", sum); |
284 | dump_binary(filename, rsp.RDRAM + (task->data_ptr & 0x7fffff), task->data_size); |
285 | } |
286 | } |
287 | |
288 | static void handle_unknown_non_task(unsigned int sum) |
289 | { |
290 | char filename[256]; |
291 | |
292 | DebugMessage(M64MSG_WARNING, "unknown RSP code: sum: %x PC:%x", sum, *rsp.SP_PC_REG); |
293 | |
294 | // dump IMEM & DMEM for further analysis |
295 | sprintf(&filename[0], "imem_%x.bin", sum); |
296 | dump_binary(filename, rsp.IMEM, 0x1000); |
297 | |
298 | sprintf(&filename[0], "dmem_%x.bin", sum); |
299 | dump_binary(filename, rsp.DMEM, 0x1000); |
300 | } |
301 | |
302 | |
303 | /* Global functions */ |
304 | void DebugMessage(int level, const char *message, ...) |
305 | { |
306 | char msgbuf[1024]; |
307 | va_list args; |
308 | |
309 | if (l_DebugCallback == NULL) |
310 | return; |
311 | |
312 | va_start(args, message); |
313 | vsprintf(msgbuf, message, args); |
314 | |
315 | (*l_DebugCallback)(l_DebugCallContext, level, msgbuf); |
316 | |
317 | va_end(args); |
318 | } |
319 | |
320 | /* DLL-exported functions */ |
321 | EXPORT m64p_error CALL PluginStartup(m64p_dynlib_handle CoreLibHandle, void *Context, |
322 | void (*DebugCallback)(void *, int, const char *)) |
323 | { |
324 | if (l_PluginInit) |
325 | return M64ERR_ALREADY_INIT; |
326 | |
327 | /* first thing is to set the callback function for debug info */ |
328 | l_DebugCallback = DebugCallback; |
329 | l_DebugCallContext = Context; |
330 | |
331 | /* this plugin doesn't use any Core library functions (ex for Configuration), so no need to keep the CoreLibHandle */ |
332 | |
333 | l_PluginInit = 1; |
334 | return M64ERR_SUCCESS; |
335 | } |
336 | |
337 | EXPORT m64p_error CALL PluginShutdown(void) |
338 | { |
339 | if (!l_PluginInit) |
340 | return M64ERR_NOT_INIT; |
341 | |
342 | /* reset some local variable */ |
343 | l_DebugCallback = NULL; |
344 | l_DebugCallContext = NULL; |
345 | |
346 | l_PluginInit = 0; |
347 | return M64ERR_SUCCESS; |
348 | } |
349 | |
350 | EXPORT m64p_error CALL PluginGetVersion(m64p_plugin_type *PluginType, int *PluginVersion, int *APIVersion, const char **PluginNamePtr, int *Capabilities) |
351 | { |
352 | /* set version info */ |
353 | if (PluginType != NULL) |
354 | *PluginType = M64PLUGIN_RSP; |
355 | |
356 | if (PluginVersion != NULL) |
357 | *PluginVersion = RSP_HLE_VERSION; |
358 | |
359 | if (APIVersion != NULL) |
360 | *APIVersion = RSP_PLUGIN_API_VERSION; |
361 | |
362 | if (PluginNamePtr != NULL) |
363 | *PluginNamePtr = "Hacktarux/Azimer High-Level Emulation RSP Plugin"; |
364 | |
365 | if (Capabilities != NULL) |
366 | { |
367 | *Capabilities = 0; |
368 | } |
369 | |
370 | return M64ERR_SUCCESS; |
371 | } |
372 | |
373 | EXPORT unsigned int CALL DoRspCycles(unsigned int Cycles) |
374 | { |
375 | if (is_task()) |
376 | { |
377 | if (!try_fast_task_dispatching()) { normal_task_dispatching(); } |
378 | rsp_break(RSP_STATUS_TASKDONE); |
379 | } |
380 | else |
381 | { |
382 | non_task_dispatching(); |
383 | rsp_break(0); |
384 | } |
385 | |
386 | return Cycles; |
387 | } |
388 | |
389 | EXPORT void CALL InitiateRSP(RSP_INFO Rsp_Info, unsigned int *CycleCount) |
390 | { |
391 | rsp = Rsp_Info; |
392 | } |
393 | |
394 | EXPORT void CALL RomClosed(void) |
395 | { |
396 | memset(rsp.DMEM, 0, 0x1000); |
397 | memset(rsp.IMEM, 0, 0x1000); |
398 | |
399 | init_ucode2(); |
400 | } |
401 | |
402 | |
403 | /* local helper functions */ |
404 | static unsigned int sum_bytes(const unsigned char *bytes, unsigned int size) |
405 | { |
406 | unsigned int sum = 0; |
407 | const unsigned char * const bytes_end = bytes + size; |
408 | |
409 | while (bytes != bytes_end) |
410 | sum += *bytes++; |
411 | |
412 | return sum; |
413 | } |
414 | |
415 | |
416 | static void dump_binary(const char * const filename, const unsigned char * const bytes, |
417 | unsigned int size) |
418 | { |
419 | FILE *f; |
420 | |
421 | // if file already exists, do nothing |
422 | f = fopen(filename, "r"); |
423 | if (f == NULL) |
424 | { |
425 | // else we write bytes to the file |
426 | f= fopen(filename, "wb"); |
427 | if (f != NULL) { |
428 | if (fwrite(bytes, 1, size, f) != size) |
429 | { |
430 | DebugMessage(M64MSG_ERROR, "Writing error on %s", filename); |
431 | } |
432 | fclose(f); |
433 | } |
434 | else |
435 | { |
436 | DebugMessage(M64MSG_ERROR, "Couldn't open %s for writing !", filename); |
437 | } |
438 | } |
439 | else |
440 | { |
441 | fclose(f); |
442 | } |
443 | } |
444 | |
445 | static void dump_task(const char * const filename, const OSTask_t * const task) |
446 | { |
447 | FILE *f; |
448 | |
449 | f = fopen(filename, "r"); |
450 | if (f == NULL) |
451 | { |
452 | f = fopen(filename, "w"); |
453 | fprintf(f, |
454 | "type = %d\n" |
455 | "flags = %d\n" |
456 | "ucode_boot = %#08x size = %#x\n" |
457 | "ucode = %#08x size = %#x\n" |
458 | "ucode_data = %#08x size = %#x\n" |
459 | "dram_stack = %#08x size = %#x\n" |
460 | "output_buff = %#08x *size = %#x\n" |
461 | "data = %#08x size = %#x\n" |
462 | "yield_data = %#08x size = %#x\n", |
463 | task->type, task->flags, |
464 | task->ucode_boot, task->ucode_boot_size, |
465 | task->ucode, task->ucode_size, |
466 | task->ucode_data, task->ucode_data_size, |
467 | task->dram_stack, task->dram_stack_size, |
468 | task->output_buff, task->output_buff_size, |
469 | task->data_ptr, task->data_size, |
470 | task->yield_data_ptr, task->yield_data_size); |
471 | fclose(f); |
472 | } |
473 | else |
474 | { |
475 | fclose(f); |
476 | } |
477 | } |
478 | |