2823a4c8 |
1 | /* gameplaySP |
2 | * |
3 | * Copyright (C) 2006 Exophase <exophase@gmail.com> |
4 | * |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as |
7 | * published by the Free Software Foundation; either version 2 of |
8 | * the License, or (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 GNU |
13 | * 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 Free Software |
17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
18 | */ |
19 | |
20 | #include "common.h" |
21 | |
22 | #ifdef PSP_BUILD |
23 | |
24 | //PSP_MODULE_INFO("gpSP", 0x1000, 0, 6); |
25 | //PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER); |
26 | |
27 | void vblank_interrupt_handler(u32 sub, u32 *parg); |
28 | |
29 | #endif |
30 | |
31 | timer_type timer[4]; |
32 | |
33 | //debug_state current_debug_state = COUNTDOWN_BREAKPOINT; |
34 | //debug_state current_debug_state = PC_BREAKPOINT; |
35 | u32 breakpoint_value = 0x7c5000; |
36 | debug_state current_debug_state = RUN; |
37 | //debug_state current_debug_state = STEP_RUN; |
38 | |
39 | //u32 breakpoint_value = 0; |
40 | |
41 | frameskip_type current_frameskip_type = auto_frameskip; |
42 | u32 global_cycles_per_instruction = 1; |
43 | u32 random_skip = 0; |
ee0a3871 |
44 | u32 fps_debug = 0; |
2823a4c8 |
45 | |
2823a4c8 |
46 | u32 frameskip_value = 2; |
47 | |
2823a4c8 |
48 | u64 last_frame_interval_timestamp; |
2823a4c8 |
49 | |
2823a4c8 |
50 | u32 skip_next_frame = 0; |
51 | |
52 | u32 frameskip_counter = 0; |
53 | |
54 | u32 cpu_ticks = 0; |
55 | u32 frame_ticks = 0; |
56 | |
57 | u32 execute_cycles = 960; |
58 | s32 video_count = 960; |
59 | u32 ticks; |
60 | |
61 | u32 arm_frame = 0; |
62 | u32 thumb_frame = 0; |
63 | u32 last_frame = 0; |
64 | |
65 | u32 cycle_memory_access = 0; |
66 | u32 cycle_pc_relative_access = 0; |
67 | u32 cycle_sp_relative_access = 0; |
68 | u32 cycle_block_memory_access = 0; |
69 | u32 cycle_block_memory_sp_access = 0; |
70 | u32 cycle_block_memory_words = 0; |
71 | u32 cycle_dma16_words = 0; |
72 | u32 cycle_dma32_words = 0; |
73 | u32 flush_ram_count = 0; |
74 | u32 gbc_update_count = 0; |
75 | u32 oam_update_count = 0; |
76 | |
77 | u32 synchronize_flag = 1; |
78 | |
79 | u32 update_backup_flag = 1; |
90206450 |
80 | #ifdef GP2X_BUILD |
81 | u32 clock_speed = 200; |
82 | #else |
2823a4c8 |
83 | u32 clock_speed = 333; |
90206450 |
84 | #endif |
bbba3209 |
85 | char main_path[512]; |
2823a4c8 |
86 | |
87 | void trigger_ext_event(); |
88 | |
89 | #define check_count(count_var) \ |
90 | if(count_var < execute_cycles) \ |
91 | execute_cycles = count_var; \ |
92 | |
93 | #define check_timer(timer_number) \ |
94 | if(timer[timer_number].status == TIMER_PRESCALE) \ |
95 | check_count(timer[timer_number].count); \ |
96 | |
97 | #define update_timer(timer_number) \ |
98 | if(timer[timer_number].status != TIMER_INACTIVE) \ |
99 | { \ |
100 | if(timer[timer_number].status != TIMER_CASCADE) \ |
101 | { \ |
102 | timer[timer_number].count -= execute_cycles; \ |
103 | io_registers[REG_TM##timer_number##D] = \ |
104 | -(timer[timer_number].count >> timer[timer_number].prescale); \ |
105 | } \ |
106 | \ |
107 | if(timer[timer_number].count <= 0) \ |
108 | { \ |
109 | if(timer[timer_number].irq == TIMER_TRIGGER_IRQ) \ |
110 | irq_raised |= IRQ_TIMER##timer_number; \ |
111 | \ |
112 | if((timer_number != 3) && \ |
113 | (timer[timer_number + 1].status == TIMER_CASCADE)) \ |
114 | { \ |
115 | timer[timer_number + 1].count--; \ |
116 | io_registers[REG_TM0D + (timer_number + 1) * 2] = \ |
117 | -(timer[timer_number + 1].count); \ |
118 | } \ |
119 | \ |
120 | if(timer_number < 2) \ |
121 | { \ |
122 | if(timer[timer_number].direct_sound_channels & 0x01) \ |
123 | sound_timer(timer[timer_number].frequency_step, 0); \ |
124 | \ |
125 | if(timer[timer_number].direct_sound_channels & 0x02) \ |
126 | sound_timer(timer[timer_number].frequency_step, 1); \ |
127 | } \ |
128 | \ |
129 | timer[timer_number].count += \ |
130 | (timer[timer_number].reload << timer[timer_number].prescale); \ |
131 | } \ |
132 | } \ |
133 | |
bbba3209 |
134 | static const char *file_ext[] = { ".gba", ".bin", ".zip", NULL }; |
2823a4c8 |
135 | |
ffc30d25 |
136 | #ifndef PSP_BUILD |
d40aa461 |
137 | static void ChangeWorkingDirectory(char *exe) |
2823a4c8 |
138 | { |
139 | #ifndef _WIN32_WCE |
140 | char *s = strrchr(exe, '/'); |
141 | if (s != NULL) { |
142 | *s = '\0'; |
143 | chdir(exe); |
144 | *s = '/'; |
145 | } |
146 | #endif |
147 | } |
d40aa461 |
148 | |
149 | static void switch_to_romdir(void) |
150 | { |
151 | char buff[256]; |
152 | int r; |
153 | |
154 | file_open(romdir_file, "romdir.txt", read); |
155 | |
156 | if(file_check_valid(romdir_file)) |
157 | { |
158 | r = file_read(romdir_file, buff, sizeof(buff) - 1); |
159 | if (r > 0) |
160 | { |
161 | buff[r] = 0; |
162 | while (r > 0 && isspace(buff[r-1])) |
163 | buff[--r] = 0; |
164 | chdir(buff); |
165 | } |
166 | file_close(romdir_file); |
167 | } |
168 | } |
169 | |
170 | static void save_romdir(void) |
171 | { |
172 | char buff[512]; |
d40aa461 |
173 | |
174 | snprintf(buff, sizeof(buff), "%s" PATH_SEPARATOR "romdir.txt", main_path); |
175 | file_open(romdir_file, buff, write); |
176 | |
177 | if(file_check_valid(romdir_file)) |
178 | { |
179 | if (getcwd(buff, sizeof(buff))) |
180 | { |
181 | file_write(romdir_file, buff, strlen(buff)); |
182 | } |
183 | file_close(romdir_file); |
184 | } |
185 | } |
186 | #else |
187 | void ChangeWorkingDirectory(char *exe) {} |
188 | static void switch_to_romdir(void) {} |
189 | static void save_romdir(void) {} |
2823a4c8 |
190 | #endif |
191 | |
192 | void init_main() |
193 | { |
194 | u32 i; |
195 | |
196 | skip_next_frame = 0; |
197 | |
198 | for(i = 0; i < 4; i++) |
199 | { |
200 | dma[i].start_type = DMA_INACTIVE; |
201 | dma[i].direct_sound_channel = DMA_NO_DIRECT_SOUND; |
202 | timer[i].status = TIMER_INACTIVE; |
203 | timer[i].reload = 0x10000; |
204 | timer[i].stop_cpu_ticks = 0; |
205 | } |
206 | |
207 | timer[0].direct_sound_channels = TIMER_DS_CHANNEL_BOTH; |
208 | timer[1].direct_sound_channels = TIMER_DS_CHANNEL_NONE; |
209 | |
210 | cpu_ticks = 0; |
211 | frame_ticks = 0; |
212 | |
213 | execute_cycles = 960; |
214 | video_count = 960; |
215 | |
216 | flush_translation_cache_rom(); |
217 | flush_translation_cache_ram(); |
218 | flush_translation_cache_bios(); |
219 | } |
220 | |
221 | int main(int argc, char *argv[]) |
222 | { |
d0944fc9 |
223 | char bios_filename[512]; |
224 | int ret; |
225 | |
2823a4c8 |
226 | #ifdef PSP_BUILD |
227 | sceKernelRegisterSubIntrHandler(PSP_VBLANK_INT, 0, |
228 | vblank_interrupt_handler, NULL); |
229 | sceKernelEnableSubIntr(PSP_VBLANK_INT, 0); |
2823a4c8 |
230 | #endif |
231 | |
2823a4c8 |
232 | init_gamepak_buffer(); |
233 | |
234 | // Copy the directory path of the executable into main_path |
235 | |
2823a4c8 |
236 | // ChangeWorkingDirectory will null out the filename out of the path |
237 | ChangeWorkingDirectory(argv[0]); |
2823a4c8 |
238 | |
239 | getcwd(main_path, 512); |
2823a4c8 |
240 | |
241 | #ifdef PSP_BUILD |
242 | delay_us(2500000); |
243 | #endif |
244 | |
43c24b30 |
245 | #ifndef PC_BUILD |
246 | gpsp_plat_init(); |
2823a4c8 |
247 | #endif |
eb3668fc |
248 | load_config_file(); |
249 | |
250 | gamepak_filename[0] = 0; |
2823a4c8 |
251 | |
4cdfc0bc |
252 | init_video(); |
253 | |
d0944fc9 |
254 | sprintf(bios_filename, "%s" PATH_SEPARATOR "%s", main_path, "gba_bios.bin"); |
255 | ret = load_bios(bios_filename); |
256 | if (ret != 0) |
257 | ret = load_bios("gba_bios.bin"); |
258 | if (ret != 0) |
2823a4c8 |
259 | { |
260 | gui_action_type gui_action = CURSOR_NONE; |
261 | |
262 | debug_screen_start(); |
108c704a |
263 | debug_screen_printl(" "); |
2823a4c8 |
264 | debug_screen_printl("Sorry, but gpSP requires a Gameboy Advance BIOS "); |
265 | debug_screen_printl("image to run correctly. Make sure to get an "); |
266 | debug_screen_printl("authentic one, it'll be exactly 16384 bytes large "); |
267 | debug_screen_printl("and should have the following md5sum value: "); |
268 | debug_screen_printl(" "); |
269 | debug_screen_printl("a860e8c0b6d573d191e4ec7db1b1e4f6 "); |
270 | debug_screen_printl(" "); |
271 | debug_screen_printl("When you do get it name it gba_bios.bin and put it"); |
eb3668fc |
272 | #ifdef PND_BUILD |
ffc30d25 |
273 | debug_screen_printl("in <SD card>/pandora/appdata/gpsp/ . "); |
eb3668fc |
274 | #else |
2823a4c8 |
275 | debug_screen_printl("in the same directory as gpSP. "); |
eb3668fc |
276 | #endif |
2823a4c8 |
277 | debug_screen_printl(" "); |
278 | debug_screen_printl("Press any button to exit. "); |
279 | |
280 | debug_screen_update(); |
281 | |
282 | while(gui_action == CURSOR_NONE) |
283 | { |
284 | gui_action = get_gui_input(); |
285 | delay_us(15000); |
286 | } |
287 | |
288 | debug_screen_end(); |
289 | |
290 | quit(); |
291 | } |
292 | |
293 | if(bios_rom[0] != 0x18) |
294 | { |
295 | gui_action_type gui_action = CURSOR_NONE; |
296 | |
297 | debug_screen_start(); |
298 | debug_screen_printl("You have an incorrect BIOS image. "); |
299 | debug_screen_printl("While many games will work fine, some will not. It"); |
300 | debug_screen_printl("is strongly recommended that you obtain the "); |
301 | debug_screen_printl("correct BIOS file. Do NOT report any bugs if you "); |
302 | debug_screen_printl("are seeing this message. "); |
303 | debug_screen_printl(" "); |
304 | debug_screen_printl("Press any button to resume, at your own risk. "); |
305 | |
306 | debug_screen_update(); |
307 | |
308 | while(gui_action == CURSOR_NONE) |
309 | { |
310 | gui_action = get_gui_input(); |
311 | delay_us(15000); |
312 | } |
313 | |
314 | debug_screen_end(); |
315 | } |
316 | |
317 | init_main(); |
40a392b0 |
318 | init_sound(1); |
2823a4c8 |
319 | |
320 | init_input(); |
321 | |
322 | video_resolution_large(); |
323 | |
324 | if(argc > 1) |
325 | { |
326 | if(load_gamepak(argv[1]) == -1) |
327 | { |
43c24b30 |
328 | #ifndef PSP_BUILD |
bbba3209 |
329 | printf("Failed to load gamepak %s, exiting.\n", argv[1]); |
2823a4c8 |
330 | #endif |
331 | exit(-1); |
332 | } |
333 | |
334 | set_gba_resolution(screen_scale); |
335 | video_resolution_small(); |
336 | |
337 | init_cpu(); |
338 | init_memory(); |
339 | } |
340 | else |
341 | { |
bbba3209 |
342 | char load_filename[512]; |
ffc30d25 |
343 | switch_to_romdir(); |
2823a4c8 |
344 | if(load_file(file_ext, load_filename) == -1) |
345 | { |
346 | menu(copy_screen()); |
347 | } |
348 | else |
349 | { |
350 | if(load_gamepak(load_filename) == -1) |
351 | { |
43c24b30 |
352 | #ifndef PSP_BUILD |
2823a4c8 |
353 | printf("Failed to load gamepak %s, exiting.\n", load_filename); |
354 | #endif |
355 | exit(-1); |
356 | } |
357 | |
1d02ca75 |
358 | set_clock_speed(); |
2823a4c8 |
359 | set_gba_resolution(screen_scale); |
360 | video_resolution_small(); |
361 | |
362 | init_cpu(); |
363 | init_memory(); |
364 | } |
365 | } |
366 | |
367 | last_frame = 0; |
368 | |
369 | // We'll never actually return from here. |
370 | |
371 | #ifdef PSP_BUILD |
372 | execute_arm_translate(execute_cycles); |
373 | #else |
374 | |
2823a4c8 |
375 | /* u8 current_savestate_filename[512]; |
376 | get_savestate_filename_noshot(savestate_slot, |
377 | current_savestate_filename); |
378 | load_state(current_savestate_filename); */ |
379 | |
90206450 |
380 | // debug_on(); |
2823a4c8 |
381 | |
382 | if(argc > 2) |
383 | { |
384 | current_debug_state = COUNTDOWN_BREAKPOINT; |
385 | breakpoint_value = strtol(argv[2], NULL, 16); |
386 | } |
387 | |
388 | trigger_ext_event(); |
389 | |
390 | execute_arm_translate(execute_cycles); |
391 | execute_arm(execute_cycles); |
392 | #endif |
393 | return 0; |
394 | } |
395 | |
396 | void print_memory_stats(u32 *counter, u32 *region_stats, char *stats_str) |
397 | { |
398 | u32 other_region_counter = region_stats[0x1] + region_stats[0xE] + |
399 | region_stats[0xF]; |
400 | u32 rom_region_counter = region_stats[0x8] + region_stats[0x9] + |
401 | region_stats[0xA] + region_stats[0xB] + region_stats[0xC] + |
402 | region_stats[0xD]; |
403 | u32 _counter = *counter; |
404 | |
405 | printf("memory access stats: %s (out of %d)\n", stats_str, _counter); |
406 | printf("bios: %f%%\tiwram: %f%%\tewram: %f%%\tvram: %f\n", |
407 | region_stats[0x0] * 100.0 / _counter, region_stats[0x3] * 100.0 / |
408 | _counter, |
409 | region_stats[0x2] * 100.0 / _counter, region_stats[0x6] * 100.0 / |
410 | _counter); |
411 | |
412 | printf("oam: %f%%\tpalette: %f%%\trom: %f%%\tother: %f%%\n", |
413 | region_stats[0x7] * 100.0 / _counter, region_stats[0x5] * 100.0 / |
414 | _counter, |
415 | rom_region_counter * 100.0 / _counter, other_region_counter * 100.0 / |
416 | _counter); |
417 | |
418 | *counter = 0; |
419 | memset(region_stats, 0, sizeof(u32) * 16); |
420 | } |
421 | |
422 | u32 event_cycles = 0; |
423 | const u32 event_cycles_trigger = 60 * 5; |
424 | u32 no_alpha = 0; |
425 | |
426 | void trigger_ext_event() |
427 | { |
428 | static u32 event_number = 0; |
429 | static u64 benchmark_ticks[16]; |
430 | u64 new_ticks; |
bbba3209 |
431 | char current_savestate_filename[512]; |
2823a4c8 |
432 | |
433 | return; |
434 | |
435 | if(event_number) |
436 | { |
437 | get_ticks_us(&new_ticks); |
438 | benchmark_ticks[event_number - 1] = |
439 | new_ticks - benchmark_ticks[event_number - 1]; |
440 | } |
441 | |
442 | current_frameskip_type = no_frameskip; |
443 | no_alpha = 0; |
444 | synchronize_flag = 0; |
445 | |
446 | get_savestate_filename_noshot(savestate_slot, |
447 | current_savestate_filename); |
448 | load_state(current_savestate_filename); |
449 | |
450 | switch(event_number) |
451 | { |
452 | case 0: |
453 | // Full benchmark, run normally |
454 | break; |
455 | |
456 | case 1: |
457 | // No alpha blending |
458 | no_alpha = 1; |
459 | break; |
460 | |
461 | case 2: |
462 | // No video benchmark |
463 | // Set frameskip really high + manual |
464 | current_frameskip_type = manual_frameskip; |
465 | frameskip_value = 1000000; |
466 | break; |
467 | |
468 | case 3: |
469 | // No CPU benchmark |
470 | // Put CPU in halt mode, put it in IRQ mode with interrupts off |
471 | reg[CPU_HALT_STATE] = CPU_HALT; |
472 | reg[REG_CPSR] = 0xD2; |
473 | break; |
474 | |
475 | case 4: |
476 | // No CPU or video benchmark |
477 | reg[CPU_HALT_STATE] = CPU_HALT; |
478 | reg[REG_CPSR] = 0xD2; |
479 | current_frameskip_type = manual_frameskip; |
480 | frameskip_value = 1000000; |
481 | break; |
482 | |
483 | case 5: |
484 | { |
485 | // Done |
486 | char *print_strings[] = |
487 | { |
488 | "Full test ", |
489 | "No blending ", |
490 | "No video ", |
491 | "No CPU ", |
492 | "No CPU/video", |
493 | "CPU speed ", |
494 | "Video speed ", |
495 | "Alpha cost " |
496 | }; |
497 | u32 i; |
498 | |
499 | benchmark_ticks[6] = benchmark_ticks[0] - benchmark_ticks[2]; |
500 | benchmark_ticks[5] = benchmark_ticks[0] - benchmark_ticks[4] - |
501 | benchmark_ticks[6]; |
502 | benchmark_ticks[7] = benchmark_ticks[0] - benchmark_ticks[1]; |
503 | |
504 | printf("Benchmark results (%d frames): \n", event_cycles_trigger); |
505 | for(i = 0; i < 8; i++) |
506 | { |
507 | printf(" %s: %d ms (%f ms per frame)\n", |
508 | print_strings[i], (u32)benchmark_ticks[i] / 1000, |
509 | (float)(benchmark_ticks[i] / (1000.0 * event_cycles_trigger))); |
510 | if(i == 4) |
511 | printf("\n"); |
512 | } |
513 | quit(); |
514 | } |
515 | } |
516 | |
517 | event_cycles = 0; |
518 | |
519 | get_ticks_us(benchmark_ticks + event_number); |
520 | event_number++; |
521 | } |
522 | |
42c81190 |
523 | static u32 fps = 60; |
524 | static u32 frames_drawn = 60; |
525 | |
2823a4c8 |
526 | u32 update_gba() |
527 | { |
528 | irq_type irq_raised = IRQ_NONE; |
529 | |
530 | do |
531 | { |
532 | cpu_ticks += execute_cycles; |
533 | |
534 | reg[CHANGED_PC_STATUS] = 0; |
535 | |
536 | if(gbc_sound_update) |
537 | { |
538 | gbc_update_count++; |
539 | update_gbc_sound(cpu_ticks); |
540 | gbc_sound_update = 0; |
541 | } |
542 | |
543 | update_timer(0); |
544 | update_timer(1); |
545 | update_timer(2); |
546 | update_timer(3); |
547 | |
548 | video_count -= execute_cycles; |
549 | |
550 | if(video_count <= 0) |
551 | { |
552 | u32 vcount = io_registers[REG_VCOUNT]; |
553 | u32 dispstat = io_registers[REG_DISPSTAT]; |
554 | |
555 | if((dispstat & 0x02) == 0) |
556 | { |
557 | // Transition from hrefresh to hblank |
558 | video_count += (272); |
559 | dispstat |= 0x02; |
560 | |
561 | if((dispstat & 0x01) == 0) |
562 | { |
563 | u32 i; |
564 | if(oam_update) |
565 | oam_update_count++; |
566 | |
567 | if(no_alpha) |
568 | io_registers[REG_BLDCNT] = 0; |
569 | update_scanline(); |
570 | |
571 | // If in visible area also fire HDMA |
572 | for(i = 0; i < 4; i++) |
573 | { |
574 | if(dma[i].start_type == DMA_START_HBLANK) |
575 | dma_transfer(dma + i); |
576 | } |
577 | } |
578 | |
579 | if(dispstat & 0x10) |
580 | irq_raised |= IRQ_HBLANK; |
581 | } |
582 | else |
583 | { |
584 | // Transition from hblank to next line |
585 | video_count += 960; |
586 | dispstat &= ~0x02; |
587 | |
588 | vcount++; |
589 | |
590 | if(vcount == 160) |
591 | { |
592 | // Transition from vrefresh to vblank |
593 | u32 i; |
594 | |
595 | dispstat |= 0x01; |
596 | if(dispstat & 0x8) |
597 | { |
598 | irq_raised |= IRQ_VBLANK; |
599 | } |
600 | |
601 | affine_reference_x[0] = |
602 | (s32)(address32(io_registers, 0x28) << 4) >> 4; |
603 | affine_reference_y[0] = |
604 | (s32)(address32(io_registers, 0x2C) << 4) >> 4; |
605 | affine_reference_x[1] = |
606 | (s32)(address32(io_registers, 0x38) << 4) >> 4; |
607 | affine_reference_y[1] = |
608 | (s32)(address32(io_registers, 0x3C) << 4) >> 4; |
609 | |
610 | for(i = 0; i < 4; i++) |
611 | { |
612 | if(dma[i].start_type == DMA_START_VBLANK) |
613 | dma_transfer(dma + i); |
614 | } |
615 | } |
616 | else |
617 | |
618 | if(vcount == 228) |
619 | { |
620 | // Transition from vblank to next screen |
621 | dispstat &= ~0x01; |
622 | frame_ticks++; |
623 | |
624 | #ifdef PC_BUILD |
d0944fc9 |
625 | /* printf("frame update (%x), %d instructions total, %d RAM flushes\n", |
2823a4c8 |
626 | reg[REG_PC], instruction_count - last_frame, flush_ram_count); |
627 | last_frame = instruction_count; |
d0944fc9 |
628 | */ |
2823a4c8 |
629 | /* printf("%d gbc audio updates\n", gbc_update_count); |
630 | printf("%d oam updates\n", oam_update_count); */ |
631 | gbc_update_count = 0; |
632 | oam_update_count = 0; |
633 | flush_ram_count = 0; |
634 | #endif |
635 | |
636 | if(update_input()) |
637 | continue; |
638 | |
639 | update_gbc_sound(cpu_ticks); |
42c81190 |
640 | |
ee0a3871 |
641 | if(fps_debug) |
42c81190 |
642 | { |
643 | char print_buffer[32]; |
43c24b30 |
644 | sprintf(print_buffer, "%2d (%2d)", fps, frames_drawn); |
42c81190 |
645 | print_string(print_buffer, 0xFFFF, 0x000, 0, 0); |
646 | } |
43c24b30 |
647 | if(!synchronize_flag) |
648 | print_string("-FF-", 0xFFFF, 0x000, 216, 0); |
2823a4c8 |
649 | |
650 | update_screen(); |
651 | |
42c81190 |
652 | synchronize(); |
653 | |
2823a4c8 |
654 | if(update_backup_flag) |
655 | update_backup(); |
656 | |
657 | process_cheats(); |
658 | |
659 | event_cycles++; |
660 | if(event_cycles == event_cycles_trigger) |
661 | { |
662 | trigger_ext_event(); |
663 | continue; |
664 | } |
665 | |
666 | vcount = 0; |
667 | } |
668 | |
669 | if(vcount == (dispstat >> 8)) |
670 | { |
671 | // vcount trigger |
672 | dispstat |= 0x04; |
673 | if(dispstat & 0x20) |
674 | { |
675 | irq_raised |= IRQ_VCOUNT; |
676 | } |
677 | } |
678 | else |
679 | { |
680 | dispstat &= ~0x04; |
681 | } |
682 | |
683 | io_registers[REG_VCOUNT] = vcount; |
684 | } |
685 | io_registers[REG_DISPSTAT] = dispstat; |
686 | } |
687 | |
688 | if(irq_raised) |
689 | raise_interrupt(irq_raised); |
690 | |
691 | execute_cycles = video_count; |
692 | |
693 | check_timer(0); |
694 | check_timer(1); |
695 | check_timer(2); |
696 | check_timer(3); |
697 | } while(reg[CPU_HALT_STATE] != CPU_ACTIVE); |
698 | |
699 | return execute_cycles; |
700 | } |
701 | |
2823a4c8 |
702 | #ifdef PSP_BUILD |
703 | |
704 | u32 real_frame_count = 0; |
705 | u32 virtual_frame_count = 0; |
706 | u32 num_skipped_frames = 0; |
707 | |
708 | void vblank_interrupt_handler(u32 sub, u32 *parg) |
709 | { |
710 | real_frame_count++; |
711 | } |
712 | |
713 | void synchronize() |
714 | { |
715 | char char_buffer[64]; |
716 | u64 new_ticks, time_delta; |
717 | s32 used_frameskip = frameskip_value; |
718 | |
719 | if(!synchronize_flag) |
720 | { |
2823a4c8 |
721 | used_frameskip = 4; |
722 | virtual_frame_count = real_frame_count - 1; |
723 | } |
724 | |
725 | skip_next_frame = 0; |
726 | |
727 | virtual_frame_count++; |
728 | |
729 | if(real_frame_count >= virtual_frame_count) |
730 | { |
731 | if((real_frame_count > virtual_frame_count) && |
732 | (current_frameskip_type == auto_frameskip) && |
733 | (num_skipped_frames < frameskip_value)) |
734 | { |
735 | skip_next_frame = 1; |
736 | num_skipped_frames++; |
737 | } |
738 | else |
739 | { |
740 | virtual_frame_count = real_frame_count; |
741 | num_skipped_frames = 0; |
742 | } |
743 | |
744 | // Here so that the home button return will eventually work. |
745 | // If it's not running fullspeed anyway this won't really hurt |
746 | // it much more. |
747 | |
748 | delay_us(1); |
749 | } |
750 | else |
751 | { |
752 | if(synchronize_flag) |
753 | sceDisplayWaitVblankStart(); |
754 | } |
755 | |
756 | if(current_frameskip_type == manual_frameskip) |
757 | { |
758 | frameskip_counter = (frameskip_counter + 1) % |
759 | (used_frameskip + 1); |
760 | if(random_skip) |
761 | { |
762 | if(frameskip_counter != (rand() % (used_frameskip + 1))) |
763 | skip_next_frame = 1; |
764 | } |
765 | else |
766 | { |
767 | if(frameskip_counter) |
768 | skip_next_frame = 1; |
769 | } |
770 | } |
771 | |
772 | /* sprintf(char_buffer, "%08d %08d %d %d %d\n", |
773 | real_frame_count, virtual_frame_count, num_skipped_frames, |
774 | real_frame_count - virtual_frame_count, skip_next_frame); |
775 | print_string(char_buffer, 0xFFFF, 0x0000, 0, 10); */ |
776 | |
777 | /* |
778 | sprintf(char_buffer, "%02d %02d %06d %07d", frameskip, (u32)ms_needed, |
779 | ram_translation_ptr - ram_translation_cache, rom_translation_ptr - |
780 | rom_translation_cache); |
781 | print_string(char_buffer, 0xFFFF, 0x0000, 0, 0); |
782 | */ |
783 | } |
784 | |
2455b6a3 |
785 | #else |
2823a4c8 |
786 | |
787 | u32 real_frame_count = 0; |
788 | u32 virtual_frame_count = 0; |
789 | u32 num_skipped_frames = 0; |
790 | u32 interval_skipped_frames; |
791 | u32 frames; |
792 | |
2823a4c8 |
793 | const u32 frame_interval = 60; |
794 | |
795 | void synchronize() |
796 | { |
797 | u64 new_ticks; |
798 | u64 time_delta; |
2823a4c8 |
799 | |
800 | get_ticks_us(&new_ticks); |
2823a4c8 |
801 | |
802 | skip_next_frame = 0; |
803 | virtual_frame_count++; |
804 | |
2455b6a3 |
805 | real_frame_count = (new_ticks * 3) / 50000; |
2823a4c8 |
806 | |
807 | if(real_frame_count >= virtual_frame_count) |
808 | { |
809 | if((real_frame_count > virtual_frame_count) && |
810 | (current_frameskip_type == auto_frameskip) && |
811 | (num_skipped_frames < frameskip_value)) |
812 | { |
813 | skip_next_frame = 1; |
814 | num_skipped_frames++; |
815 | } |
816 | else |
817 | { |
818 | virtual_frame_count = real_frame_count; |
819 | num_skipped_frames = 0; |
820 | } |
821 | } |
2455b6a3 |
822 | else if (synchronize_flag) |
823 | { |
824 | #if defined(PND_BUILD) |
825 | fb_wait_vsync(); |
826 | #elif !defined(GP2X_BUILD) // sleeping on GP2X is a bad idea |
827 | delay_us((u64)virtual_frame_count * 50000 / 3 - new_ticks + 2); |
828 | #endif |
829 | } |
2823a4c8 |
830 | |
831 | frames++; |
832 | |
833 | if(frames == frame_interval) |
834 | { |
835 | u32 new_fps; |
836 | u32 new_frames_drawn; |
837 | |
838 | time_delta = new_ticks - last_frame_interval_timestamp; |
839 | new_fps = (u64)((u64)1000000 * (u64)frame_interval) / time_delta; |
840 | new_frames_drawn = |
841 | (frame_interval - interval_skipped_frames) * (60 / frame_interval); |
842 | |
843 | // Left open for rolling averages |
844 | fps = new_fps; |
845 | frames_drawn = new_frames_drawn; |
846 | |
847 | last_frame_interval_timestamp = new_ticks; |
848 | interval_skipped_frames = 0; |
2823a4c8 |
849 | frames = 0; |
850 | } |
851 | |
852 | if(current_frameskip_type == manual_frameskip) |
853 | { |
854 | frameskip_counter = (frameskip_counter + 1) % |
855 | (frameskip_value + 1); |
856 | if(random_skip) |
857 | { |
858 | if(frameskip_counter != (rand() % (frameskip_value + 1))) |
859 | skip_next_frame = 1; |
860 | } |
861 | else |
862 | { |
863 | if(frameskip_counter) |
864 | skip_next_frame = 1; |
865 | } |
866 | } |
867 | |
868 | interval_skipped_frames += skip_next_frame; |
869 | |
2455b6a3 |
870 | #if !defined(GP2X_BUILD) && !defined(PND_BUILD) |
2823a4c8 |
871 | char char_buffer[64]; |
2455b6a3 |
872 | sprintf(char_buffer, "gpSP: %2d (%2d) fps", fps, frames_drawn); |
2823a4c8 |
873 | SDL_WM_SetCaption(char_buffer, "gpSP"); |
2455b6a3 |
874 | #endif |
2823a4c8 |
875 | } |
876 | |
877 | #endif |
878 | |
879 | void quit() |
880 | { |
d40aa461 |
881 | save_romdir(); |
882 | |
2823a4c8 |
883 | if(!update_backup_flag) |
884 | update_backup_force(); |
885 | |
886 | sound_exit(); |
887 | |
888 | #ifdef REGISTER_USAGE_ANALYZE |
889 | print_register_usage(); |
890 | #endif |
891 | |
892 | #ifdef PSP_BUILD |
893 | sceKernelExitGame(); |
894 | #else |
895 | SDL_Quit(); |
896 | |
43c24b30 |
897 | #ifndef PC_BUILD |
898 | gpsp_plat_quit(); |
2823a4c8 |
899 | #endif |
900 | |
901 | exit(0); |
902 | #endif |
903 | } |
904 | |
905 | void reset_gba() |
906 | { |
907 | init_main(); |
908 | init_memory(); |
909 | init_cpu(); |
910 | reset_sound(); |
911 | } |
912 | |
913 | #ifdef PSP_BUILD |
914 | |
bbba3209 |
915 | u32 file_length(char *filename, s32 dummy) |
2823a4c8 |
916 | { |
917 | SceIoStat stats; |
918 | sceIoGetstat(filename, &stats); |
919 | return stats.st_size; |
920 | } |
921 | |
922 | void delay_us(u32 us_count) |
923 | { |
924 | sceKernelDelayThread(us_count); |
925 | } |
926 | |
927 | void get_ticks_us(u64 *tick_return) |
928 | { |
929 | u64 ticks; |
930 | sceRtcGetCurrentTick(&ticks); |
931 | |
932 | *tick_return = (ticks * 1000000) / sceRtcGetTickResolution(); |
933 | } |
934 | |
935 | #else |
936 | |
bbba3209 |
937 | u32 file_length(char *dummy, FILE *fp) |
2823a4c8 |
938 | { |
939 | u32 length; |
940 | |
941 | fseek(fp, 0, SEEK_END); |
942 | length = ftell(fp); |
943 | fseek(fp, 0, SEEK_SET); |
944 | |
945 | return length; |
946 | } |
947 | |
948 | #ifdef PC_BUILD |
949 | |
950 | void delay_us(u32 us_count) |
951 | { |
952 | SDL_Delay(us_count / 1000); |
953 | } |
954 | |
955 | void get_ticks_us(u64 *ticks_return) |
956 | { |
43c24b30 |
957 | *ticks_return = (u64)SDL_GetTicks() * 1000; |
2823a4c8 |
958 | } |
959 | |
960 | #else |
961 | |
962 | void delay_us(u32 us_count) |
963 | { |
90206450 |
964 | //usleep(us_count); |
965 | SDL_Delay(us_count / 1000); |
2823a4c8 |
966 | } |
967 | |
968 | void get_ticks_us(u64 *ticks_return) |
969 | { |
970 | struct timeval current_time; |
971 | gettimeofday(¤t_time, NULL); |
972 | |
973 | *ticks_return = |
974 | (u64)current_time.tv_sec * 1000000 + current_time.tv_usec; |
975 | } |
976 | |
977 | #endif |
978 | |
979 | #endif |
980 | |
bbba3209 |
981 | void change_ext(const char *src, char *buffer, const char *extension) |
2823a4c8 |
982 | { |
bbba3209 |
983 | char *dot_position; |
2823a4c8 |
984 | strcpy(buffer, src); |
985 | dot_position = strrchr(buffer, '.'); |
986 | |
987 | if(dot_position) |
988 | strcpy(dot_position, extension); |
989 | } |
990 | |
d0944fc9 |
991 | // make path: <main_path>/<romname>.<ext> |
992 | void make_rpath(char *buff, size_t size, const char *ext) |
993 | { |
994 | char *p; |
995 | p = strrchr(gamepak_filename, PATH_SEPARATOR_CHAR); |
996 | if (p == NULL) |
997 | p = gamepak_filename; |
998 | |
999 | snprintf(buff, size, "%s/%s", main_path, p); |
1000 | p = strrchr(buff, '.'); |
1001 | if (p != NULL) |
1002 | strcpy(p, ext); |
1003 | } |
1004 | |
2823a4c8 |
1005 | #define main_savestate_builder(type) \ |
1006 | void main_##type##_savestate(file_tag_type savestate_file) \ |
1007 | { \ |
1008 | file_##type##_variable(savestate_file, cpu_ticks); \ |
1009 | file_##type##_variable(savestate_file, execute_cycles); \ |
1010 | file_##type##_variable(savestate_file, video_count); \ |
1011 | file_##type##_array(savestate_file, timer); \ |
1012 | } \ |
1013 | |
1014 | main_savestate_builder(read); |
1015 | main_savestate_builder(write_mem); |
1016 | |
1017 | |
1018 | void printout(void *str, u32 val) |
1019 | { |
1020 | printf(str, val); |
1021 | } |
1d02ca75 |
1022 | |
1023 | void set_clock_speed() |
1024 | { |
1025 | static u32 clock_speed_old = default_clock_speed; |
1026 | if (clock_speed != clock_speed_old) |
1027 | { |
1028 | printf("about to set CPU clock to %iMHz\n", clock_speed); |
1029 | #ifdef PSP_BUILD |
1030 | scePowerSetClockFrequency(clock_speed, clock_speed, clock_speed / 2); |
1031 | #elif defined(GP2X_BUILD) |
1032 | set_FCLK(clock_speed); |
1033 | #endif |
1034 | clock_speed_old = clock_speed; |
1035 | } |
1036 | } |
1037 | |