forked from FoxCunning/gpsp
-
Notifications
You must be signed in to change notification settings - Fork 6
/
Copy pathmain.c
1260 lines (1029 loc) · 31.8 KB
/
main.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* gameplaySP
*
* Copyright (C) 2006 Exophase <exophase@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <signal.h>
#include <ini.h>
#include "common.h"
#include "menu.h"
#include "configfile_fk.h"
#include "video.h"
#define BIOS_PATH "/mnt/Game Boy Advance"
#ifdef PSP_BUILD
//PSP_MODULE_INFO("gpSP", 0x1000, 0, 6);
//PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER);
void vblank_interrupt_handler(u32 sub, u32 *parg);
#endif
timer_type timer[4];
//debug_state current_debug_state = COUNTDOWN_BREAKPOINT;
//debug_state current_debug_state = PC_BREAKPOINT;
u32 breakpoint_value = 0x7c5000;
debug_state current_debug_state = RUN;
//debug_state current_debug_state = STEP_RUN;
//u32 breakpoint_value = 0;
#ifdef RPI_BUILD
frameskip_type current_frameskip_type = manual_frameskip; //manual; //auto_frameskip;
u32 global_cycles_per_instruction = 1;
#else
frameskip_type current_frameskip_type = auto_frameskip;
u32 global_cycles_per_instruction = 1;
#endif
u32 random_skip = 0;
u32 fps_debug = 0;
u32 frameskip_value = 2;
u64 last_frame_interval_timestamp;
u32 skip_next_frame = 0;
u32 frameskip_counter = 0;
u32 cpu_ticks = 0;
u32 frame_ticks = 0;
u32 execute_cycles = 960;
s32 video_count = 960;
u32 ticks;
u32 arm_frame = 0;
u32 thumb_frame = 0;
u32 last_frame = 0;
u32 cycle_memory_access = 0;
u32 cycle_pc_relative_access = 0;
u32 cycle_sp_relative_access = 0;
u32 cycle_block_memory_access = 0;
u32 cycle_block_memory_sp_access = 0;
u32 cycle_block_memory_words = 0;
u32 cycle_dma16_words = 0;
u32 cycle_dma32_words = 0;
u32 flush_ram_count = 0;
u32 gbc_update_count = 0;
u32 oam_update_count = 0;
u32 synchronize_flag = 1;
u32 update_backup_flag = 1;
#ifdef GP2X_BUILD
u32 clock_speed = 200;
#else
u32 clock_speed = 333;
#endif
char main_path[512];
static char *prog_name;
static char *load_state_file = NULL;
static int load_state_slot = -1;
static char *quick_save_file_extension = "quicksave";
char *mRomName = NULL;
char *mRomPath = NULL;
char *quick_save_file = NULL;
char *cfg_file_default = NULL;
char *cfg_file_rom = NULL;
static char *cfg_file_default_name = "default_config";
static char *cfg_file_extension = "fkcfg";
u32 mQuickSaveAndPoweroff=0;
void trigger_ext_event();
#define check_count(count_var) \
if(count_var < execute_cycles) \
execute_cycles = count_var; \
#define check_timer(timer_number) \
if(timer[timer_number].status == TIMER_PRESCALE) \
check_count(timer[timer_number].count); \
#define update_timer(timer_number) \
if(timer[timer_number].status != TIMER_INACTIVE) \
{ \
if(timer[timer_number].status != TIMER_CASCADE) \
{ \
timer[timer_number].count -= execute_cycles; \
io_registers[REG_TM##timer_number##D] = \
-(timer[timer_number].count >> timer[timer_number].prescale); \
} \
\
if(timer[timer_number].count <= 0) \
{ \
if(timer[timer_number].irq == TIMER_TRIGGER_IRQ) \
irq_raised |= IRQ_TIMER##timer_number; \
\
if((timer_number != 3) && \
(timer[timer_number + 1].status == TIMER_CASCADE)) \
{ \
timer[timer_number + 1].count--; \
io_registers[REG_TM0D + (timer_number + 1) * 2] = \
-(timer[timer_number + 1].count); \
} \
\
if(timer_number < 2) \
{ \
if(timer[timer_number].direct_sound_channels & 0x01) \
sound_timer(timer[timer_number].frequency_step, 0); \
\
if(timer[timer_number].direct_sound_channels & 0x02) \
sound_timer(timer[timer_number].frequency_step, 1); \
} \
\
timer[timer_number].count += \
(timer[timer_number].reload << timer[timer_number].prescale); \
} \
} \
static const char *file_ext[] = { ".gba", ".bin", ".zip", NULL };
#if !defined(PSP_BUILD) && !defined(CHIP_BUILD)
static void ChangeWorkingDirectory(char *exe)
{
#ifndef _WIN32_WCE
char *s = strrchr(exe, '/');
if (s != NULL) {
*s = '\0';
chdir(exe);
*s = '/';
}
#endif
}
static void switch_to_romdir(void)
{
char buff[256];
int r;
file_open(romdir_file, "romdir.txt", read);
if(file_check_valid(romdir_file))
{
r = file_read(romdir_file, buff, sizeof(buff) - 1);
if (r > 0)
{
buff[r] = 0;
while (r > 0 && isspace(buff[r-1]))
buff[--r] = 0;
chdir(buff);
}
file_close(romdir_file);
}
}
static void save_romdir(void)
{
char buff[512];
snprintf(buff, sizeof(buff), "%s" PATH_SEPARATOR "romdir.txt", main_path);
file_open(romdir_file, buff, write);
if(file_check_valid(romdir_file))
{
if (getcwd(buff, sizeof(buff)))
{
file_write(romdir_file, buff, strlen(buff));
}
file_close(romdir_file);
}
}
#else
void ChangeWorkingDirectory(char *exe) {}
static void switch_to_romdir(void) {}
static void save_romdir(void) {}
#endif
void init_main()
{
u32 i;
skip_next_frame = 0;
for(i = 0; i < 4; i++)
{
dma[i].start_type = DMA_INACTIVE;
dma[i].direct_sound_channel = DMA_NO_DIRECT_SOUND;
timer[i].status = TIMER_INACTIVE;
timer[i].reload = 0x10000;
timer[i].stop_cpu_ticks = 0;
}
timer[0].direct_sound_channels = TIMER_DS_CHANNEL_BOTH;
timer[1].direct_sound_channels = TIMER_DS_CHANNEL_NONE;
cpu_ticks = 0;
frame_ticks = 0;
execute_cycles = 960;
video_count = 960;
flush_translation_cache_rom();
flush_translation_cache_ram();
flush_translation_cache_bios();
}
/* Quick save and turn off the console */
void quick_save_and_poweroff()
{
FILE *fp;
printf("Save Instant Play file\n");
/* Send command to cancel any previously scheduled powerdown */
fp = popen(SHELL_CMD_POWERDOWN_HANDLE, "r");
if (fp == NULL)
{
/* Countdown is still ticking, so better do nothing
than start writing and get interrupted!
*/
printf("Failed to cancel scheduled shutdown\n");
exit(0);
}
pclose(fp);
/* Save */
u16 *current_screen = copy_screen();
save_state(quick_save_file, current_screen);
/* Perform Instant Play save and shutdown */
execlp(SHELL_CMD_INSTANT_PLAY, SHELL_CMD_INSTANT_PLAY,
"save", prog_name, "-loadStateFile", quick_save_file, mRomName, NULL);
/* Should not be reached */
printf("Failed to perform Instant Play save and shutdown\n");
/* Exit Emulator */
exit(0);
}
/* Handler for SIGUSR1, caused by closing the console */
void handle_sigusr1(int sig)
{
//printf("Caught signal USR1 %d\n", sig);
/* Exit menu if it was launched */
stop_menu_loop = 1;
/* Signal to quick save and poweoff after next loop */
mQuickSaveAndPoweroff = 1;
}
void usage(){
printf("\n\n\ngpSP \n");
printf("usage: gpsp [options] [romfile]\n");
printf("options:\n"
" -fps use to show fps\n"
" -loadStateSlot <num> if ROM is specified, try loading savestate slot <num>\n"
" -loadStateFile <filePath> if ROM is specified, try loading savestate file <filePath>\n");
exit(1);
}
void parse_cmd_line(int argc, char *argv[])
{
int x, unrecognized = 0;
/* Save program name */
prog_name = argv[0];
/* Parse args */
for (x = 1; x < argc; x++)
{
if (argv[x][0] == '-')
{
if (strcasecmp(argv[x], "-loadStateSlot") == 0)
{
if (x+1 < argc) { ++x; load_state_slot = atoi(argv[x]); }
}
else if (strcasecmp(argv[x], "-loadStateFile") == 0) {
if (x+1 < argc) { ++x; load_state_file = argv[x]; }
}
else if (strcasecmp(argv[x], "-fps") == 0) {
fps_debug = 1;
}
else {
printf("Unrecognized command \"%s\" ", argv[x]);
unrecognized = 1;
break;
}
}
/* Check if file exists, Save ROM name, and ROM path */
else {
mRomName = argv[x];
FILE *f = fopen(mRomName, "rb");
if (f) {
/* Save Rom path */
mRomPath = (char *)malloc(strlen(mRomName)+1);
strcpy(mRomPath, mRomName);
char *slash = strrchr ((char*)mRomPath, '/');
*slash = 0;
/* Rom name without extension */
char *point = strrchr((char*)slash+1, '.');
*point = 0;
/* Set quicksave filename */
quick_save_file = (char *)malloc(strlen(mRomPath) + strlen(slash+1) +
strlen(quick_save_file_extension) + 2 + 1);
sprintf(quick_save_file, "%s/%s.%s",
mRomPath, slash+1, quick_save_file_extension);
printf("Quick_save_file: %s\n", quick_save_file);
/* Set rom cfg filepath */
cfg_file_rom = (char *)malloc(strlen(mRomPath) + strlen(slash+1) +
strlen(cfg_file_extension) + 2 + 1);
sprintf(cfg_file_rom, "%s/%s.%s",
mRomPath, slash+1, cfg_file_extension);
printf("cfg_file_rom: %s\n", cfg_file_rom);
/* Set console cfg filepath */
cfg_file_default = (char *)malloc(strlen(mRomPath) + strlen(cfg_file_default_name) +
strlen(cfg_file_extension) + 2 + 1);
sprintf(cfg_file_default, "%s/%s.%s",
mRomPath, cfg_file_default_name, cfg_file_extension);
printf("cfg_file_default: %s\n", cfg_file_default);
/** Load config files */
configfile_load(cfg_file_default);
configfile_load(cfg_file_rom);
fclose(f);
break;
}
else{
printf("Rom %s not found \n", mRomName);
unrecognized = 1;
}
break;
}
}
if (unrecognized) {
usage();
}
}
int main(int argc, char *argv[])
{
char bios_filename[512];
int ret;
/* Parse arguments */
if (argc >= 2){
parse_cmd_line(argc, argv);
}
else{
usage();
}
/* Init Signals */
signal(SIGUSR1, handle_sigusr1);
#ifdef PSP_BUILD
sceKernelRegisterSubIntrHandler(PSP_VBLANK_INT, 0,
vblank_interrupt_handler, NULL);
sceKernelEnableSubIntr(PSP_VBLANK_INT, 0);
#endif
init_gamepak_buffer();
// Copy the directory path of the executable into main_path
// ChangeWorkingDirectory will null out the filename out of the path
ChangeWorkingDirectory(argv[0]);
getcwd(main_path, 512);
#ifdef PSP_BUILD
delay_us(2500000);
#endif
#ifndef PC_BUILD
gpsp_plat_init();
#endif
load_config_file();
gamepak_filename[0] = 0;
init_video();
/// --- Init menu ---
init_menu_SDL();
sprintf(bios_filename, "%s" PATH_SEPARATOR "%s", BIOS_PATH, "gba_bios.bin");
ret = load_bios(bios_filename);
if (ret != 0){
ret = load_bios("gba_bios.bin");
}
if (ret != 0){
sprintf(bios_filename, "%s/%s", mRomPath, "bios/gba_bios.bin");
ret = load_bios(bios_filename);
}
if (ret != 0)
{
gui_action_type gui_action = CURSOR_NONE;
debug_screen_start();
debug_screen_printl(" ");
debug_screen_printl("Sorry, but gpSP requires a Gameboy Advance BIOS ");
debug_screen_printl("image to run correctly. Make sure to get an ");
debug_screen_printl("authentic one, it'll be exactly 16384 bytes large ");
debug_screen_printl("and should have the following md5sum value: ");
debug_screen_printl(" ");
debug_screen_printl("a860e8c0b6d573d191e4ec7db1b1e4f6 ");
debug_screen_printl(" ");
debug_screen_printl("When you do get it name it gba_bios.bin and put it");
#ifdef PND_BUILD
debug_screen_printl("in <SD card>/pandora/appdata/gpsp/ . ");
#else
debug_screen_printl("in the same directory as gpSP. ");
#endif
debug_screen_printl(" ");
debug_screen_printl("Press any button to exit. ");
debug_screen_update();
/** Set notif for BIOS */
char shell_cmd[400];
sprintf(shell_cmd, "%s 0 \" BIOS FILE MISSING^^Connect your FunKey S to ^your computer and copy the^BIOS file to the folder:^ Game Boy Advance/bios/^^The file must be called:^gba_bios.bin^Size=16384 Bytes^MD5=a860e8c0b6d573d191e4ec7d^b1b1e4f6^^For more instructions:^www.funkey-project.com^^Press any button to exit...\"",
SHELL_CMD_NOTIF_SET);
system(shell_cmd);
while(gui_action == CURSOR_NONE)
{
gui_action = get_gui_input();
delay_us(15000);
}
/** Clear notif for BIOS */
system(SHELL_CMD_NOTIF_CLEAR);
debug_screen_end();
quit();
}
if(bios_rom[0] != 0x18)
{
gui_action_type gui_action = CURSOR_NONE;
debug_screen_start();
debug_screen_printl("You have an incorrect BIOS image. ");
debug_screen_printl("While many games will work fine, some will not. It");
debug_screen_printl("is strongly recommended that you obtain the ");
debug_screen_printl("correct BIOS file. Do NOT report any bugs if you ");
debug_screen_printl("are seeing this message. ");
debug_screen_printl(" ");
debug_screen_printl("Press any button to resume, at your own risk. ");
debug_screen_update();
while(gui_action == CURSOR_NONE)
{
gui_action = get_gui_input();
delay_us(15000);
}
debug_screen_end();
}
init_main();
init_sound(1);
init_input();
video_resolution_large();
if(argc > 1)
{
if(load_gamepak(mRomName) == -1)
{
#ifndef PSP_BUILD
printf("Failed to load game: %s, exiting.\n", argv[1]);
#endif
exit(-1);
}
video_resolution_small();
init_cpu();
init_memory();
/* Load slot */
if(load_state_slot != -1){
printf("LOADING FROM SLOT %d...\n", load_state_slot+1);
char fname[1024];
get_savestate_filename_noshot(savestate_slot, fname);
load_state(fname);
printf("LOADED FROM SLOT %d\n", load_state_slot+1);
load_state_slot = -1;
}
/* Load file */
else if(load_state_file != NULL){
printf("LOADING FROM FILE %s...\n", load_state_file);
load_state(load_state_file);
printf("LOADED FROM SLOT %s\n", load_state_file);
load_state_file = NULL;
}
/* Load quick save file */
else if(access( quick_save_file, F_OK ) != -1){
printf("Found quick save file: %s\n", quick_save_file);
int resume = launch_resume_menu_loop();
if(resume == RESUME_YES){
printf("Resume game from quick save file: %s\n", quick_save_file);
load_state(quick_save_file);
}
else{
printf("Reset game\n");
/* Remove quicksave file if present */
if (remove(quick_save_file) == 0){
printf("Deleted successfully: %s\n", quick_save_file);
}
else{
printf("Unable to delete the file: %s\n", quick_save_file);
}
}
}
}
last_frame = 0;
// We'll never actually return from here.
#ifdef PSP_BUILD
execute_arm_translate(execute_cycles);
#else
/* u8 current_savestate_filename[512];
get_savestate_filename_noshot(savestate_slot,
current_savestate_filename);
load_state(current_savestate_filename); */
// debug_on();
/*if(argc > 2)
{
current_debug_state = COUNTDOWN_BREAKPOINT;
breakpoint_value = strtol(argv[2], NULL, 16);
}*/
trigger_ext_event();
execute_arm_translate(execute_cycles);
execute_arm(execute_cycles);
#endif
return 0;
}
void print_memory_stats(u32 *counter, u32 *region_stats, char *stats_str)
{
u32 other_region_counter = region_stats[0x1] + region_stats[0xE] +
region_stats[0xF];
u32 rom_region_counter = region_stats[0x8] + region_stats[0x9] +
region_stats[0xA] + region_stats[0xB] + region_stats[0xC] +
region_stats[0xD];
u32 _counter = *counter;
printf("memory access stats: %s (out of %d)\n", stats_str, _counter);
printf("bios: %f%%\tiwram: %f%%\tewram: %f%%\tvram: %f\n",
region_stats[0x0] * 100.0 / _counter, region_stats[0x3] * 100.0 /
_counter,
region_stats[0x2] * 100.0 / _counter, region_stats[0x6] * 100.0 /
_counter);
printf("oam: %f%%\tpalette: %f%%\trom: %f%%\tother: %f%%\n",
region_stats[0x7] * 100.0 / _counter, region_stats[0x5] * 100.0 /
_counter,
rom_region_counter * 100.0 / _counter, other_region_counter * 100.0 /
_counter);
*counter = 0;
memset(region_stats, 0, sizeof(u32) * 16);
}
u32 event_cycles = 0;
const u32 event_cycles_trigger = 60 * 5;
u32 no_alpha = 0;
void trigger_ext_event()
{
static u32 event_number = 0;
static u64 benchmark_ticks[16];
u64 new_ticks;
char current_savestate_filename[512];
return;
if(event_number)
{
get_ticks_us(&new_ticks);
benchmark_ticks[event_number - 1] =
new_ticks - benchmark_ticks[event_number - 1];
}
current_frameskip_type = no_frameskip;
no_alpha = 0;
synchronize_flag = 0;
get_savestate_filename_noshot(savestate_slot,
current_savestate_filename);
load_state(current_savestate_filename);
switch(event_number)
{
case 0:
// Full benchmark, run normally
break;
case 1:
// No alpha blending
no_alpha = 1;
break;
case 2:
// No video benchmark
// Set frameskip really high + manual
current_frameskip_type = manual_frameskip;
frameskip_value = 1000000;
break;
case 3:
// No CPU benchmark
// Put CPU in halt mode, put it in IRQ mode with interrupts off
reg[CPU_HALT_STATE] = CPU_HALT;
reg[REG_CPSR] = 0xD2;
break;
case 4:
// No CPU or video benchmark
reg[CPU_HALT_STATE] = CPU_HALT;
reg[REG_CPSR] = 0xD2;
current_frameskip_type = manual_frameskip;
frameskip_value = 1000000;
break;
case 5:
{
// Done
char *print_strings[] =
{
"Full test ",
"No blending ",
"No video ",
"No CPU ",
"No CPU/video",
"CPU speed ",
"Video speed ",
"Alpha cost "
};
u32 i;
benchmark_ticks[6] = benchmark_ticks[0] - benchmark_ticks[2];
benchmark_ticks[5] = benchmark_ticks[0] - benchmark_ticks[4] -
benchmark_ticks[6];
benchmark_ticks[7] = benchmark_ticks[0] - benchmark_ticks[1];
printf("Benchmark results (%d frames): \n", event_cycles_trigger);
for(i = 0; i < 8; i++)
{
printf(" %s: %d ms (%f ms per frame)\n",
print_strings[i], (u32)benchmark_ticks[i] / 1000,
(float)(benchmark_ticks[i] / (1000.0 * event_cycles_trigger)));
if(i == 4)
printf("\n");
}
quit();
}
}
event_cycles = 0;
get_ticks_us(benchmark_ticks + event_number);
event_number++;
}
static u32 fps = 60;
static u32 frames_drawn = 60;
u32 update_gba()
{
irq_type irq_raised = IRQ_NONE;
do
{
cpu_ticks += execute_cycles;
reg[CHANGED_PC_STATUS] = 0;
if(gbc_sound_update)
{
gbc_update_count++;
update_gbc_sound(cpu_ticks);
gbc_sound_update = 0;
}
update_timer(0);
update_timer(1);
update_timer(2);
update_timer(3);
video_count -= execute_cycles;
if(video_count <= 0)
{
u32 vcount = io_registers[REG_VCOUNT];
u32 dispstat = io_registers[REG_DISPSTAT];
if((dispstat & 0x02) == 0)
{
// Transition from hrefresh to hblank
video_count += (272);
dispstat |= 0x02;
if((dispstat & 0x01) == 0)
{
u32 i;
if(oam_update)
oam_update_count++;
if(no_alpha)
io_registers[REG_BLDCNT] = 0;
update_scanline();
// If in visible area also fire HDMA
for(i = 0; i < 4; i++)
{
if(dma[i].start_type == DMA_START_HBLANK)
dma_transfer(dma + i);
}
}
if(dispstat & 0x10)
irq_raised |= IRQ_HBLANK;
}
else
{
// Transition from hblank to next line
video_count += 960;
dispstat &= ~0x02;
vcount++;
if(vcount == 160)
{
// Transition from vrefresh to vblank
u32 i;
dispstat |= 0x01;
if(dispstat & 0x8)
{
irq_raised |= IRQ_VBLANK;
}
affine_reference_x[0] =
(s32)(address32(io_registers, 0x28) << 4) >> 4;
affine_reference_y[0] =
(s32)(address32(io_registers, 0x2C) << 4) >> 4;
affine_reference_x[1] =
(s32)(address32(io_registers, 0x38) << 4) >> 4;
affine_reference_y[1] =
(s32)(address32(io_registers, 0x3C) << 4) >> 4;
for(i = 0; i < 4; i++)
{
if(dma[i].start_type == DMA_START_VBLANK)
dma_transfer(dma + i);
}
}
else
if(vcount == 228)
{
// Transition from vblank to next screen
dispstat &= ~0x01;
frame_ticks++;
#ifdef PC_BUILD
/* printf("frame update (%x), %d instructions total, %d RAM flushes\n",
reg[REG_PC], instruction_count - last_frame, flush_ram_count);
last_frame = instruction_count;
*/
/* printf("%d gbc audio updates\n", gbc_update_count);
printf("%d oam updates\n", oam_update_count); */
gbc_update_count = 0;
oam_update_count = 0;
flush_ram_count = 0;
#endif
if(update_input())
continue;
/* Quick save and poweroff */
if(mQuickSaveAndPoweroff){
quick_save_and_poweroff();
mQuickSaveAndPoweroff = 0;
}
update_gbc_sound(cpu_ticks);
/// ------- Render -------
update_screen();
if(!print_hud()){
if(fps_debug)
{
char print_buffer[32];
sprintf(print_buffer, "%2d (%2d)", fps, frames_drawn);
print_string(print_buffer, 0xFFFF, 0x000, 0, 0);
}
}
if(!synchronize_flag)
print_string("-FF-", 0xFFFF, 0x000, 216, 0);
flip_screen();
/// ----------------------
synchronize();
if(update_backup_flag)
update_backup();
process_cheats();
event_cycles++;
if(event_cycles == event_cycles_trigger)
{
trigger_ext_event();
continue;
}
vcount = 0;
}
if(vcount == (dispstat >> 8))
{
// vcount trigger
dispstat |= 0x04;
if(dispstat & 0x20)
{
irq_raised |= IRQ_VCOUNT;
}
}
else
{
dispstat &= ~0x04;
}
io_registers[REG_VCOUNT] = vcount;
}
io_registers[REG_DISPSTAT] = dispstat;
}
if(irq_raised)
raise_interrupt(irq_raised);
execute_cycles = video_count;
check_timer(0);
check_timer(1);
check_timer(2);
check_timer(3);
} while(reg[CPU_HALT_STATE] != CPU_ACTIVE);
return execute_cycles;
}
#ifdef PSP_BUILD
u32 real_frame_count = 0;
u32 virtual_frame_count = 0;
u32 num_skipped_frames = 0;
void vblank_interrupt_handler(u32 sub, u32 *parg)
{
real_frame_count++;
}
void synchronize()
{
char char_buffer[64];
u64 new_ticks, time_delta;
s32 used_frameskip = frameskip_value;
if(!synchronize_flag)
{
used_frameskip = 4;
virtual_frame_count = real_frame_count - 1;
}
skip_next_frame = 0;
virtual_frame_count++;
if(real_frame_count >= virtual_frame_count)
{
if((real_frame_count > virtual_frame_count) &&
(current_frameskip_type == auto_frameskip) &&
(num_skipped_frames < frameskip_value))
{
skip_next_frame = 1;
num_skipped_frames++;
}
else
{
virtual_frame_count = real_frame_count;
num_skipped_frames = 0;
}
// Here so that the home button return will eventually work.
// If it's not running fullspeed anyway this won't really hurt
// it much more.
delay_us(1);
}
else
{
if(synchronize_flag)
sceDisplayWaitVblankStart();
}
if(current_frameskip_type == manual_frameskip)
{
frameskip_counter = (frameskip_counter + 1) %
(used_frameskip + 1);
if(random_skip)
{
if(frameskip_counter != (rand() % (used_frameskip + 1)))
skip_next_frame = 1;
}
else
{
if(frameskip_counter)
skip_next_frame = 1;
}
}
/* sprintf(char_buffer, "%08d %08d %d %d %d\n",
real_frame_count, virtual_frame_count, num_skipped_frames,
real_frame_count - virtual_frame_count, skip_next_frame);
print_string(char_buffer, 0xFFFF, 0x0000, 0, 10); */
/*
sprintf(char_buffer, "%02d %02d %06d %07d", frameskip, (u32)ms_needed,
ram_translation_ptr - ram_translation_cache, rom_translation_ptr -
rom_translation_cache);
print_string(char_buffer, 0xFFFF, 0x0000, 0, 0);