This repository has been archived by the owner on Jun 12, 2022. It is now read-only.
/
utils.c
1156 lines (977 loc) · 34.9 KB
/
utils.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
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <malloc.h>
#include <libdragon.h>
#include <n64sys.h>
#include "everdrive.h"
#include "sys.h"
#include "types.h"
#include "utils.h"
#include "sram.h"
#define STBI_HEADER_FILE_ONLY
#include "stb_image.c"
extern short int gCheats; /* 0 = off, 1 = select, 2 = all */
extern short int force_tv;
extern short int boot_country;
static u8 __attribute__((aligned(16))) dmaBuf[128*1024];
static volatile struct _PI_regs_s * const _PI_regs = (struct _PI_regs_s *)0xa4600000;
int is_valid_rom(unsigned char *buffer) {
/* Test if rom is a native .z64 image with header 0x80371240. [ABCD] */
if((buffer[0]==0x80)&&(buffer[1]==0x37)&&(buffer[2]==0x12)&&(buffer[3]==0x40))
return 0;
/* Test if rom is a byteswapped .v64 image with header 0x37804012. [BADC] */
else if((buffer[0]==0x37)&&(buffer[1]==0x80)&&(buffer[2]==0x40)&&(buffer[3]==0x12))
return 1;
/* Test if rom is a wordswapped .n64 image with header 0x40123780. [DCBA] */
else if((buffer[0]==0x40)&&(buffer[1]==0x12)&&(buffer[2]==0x37)&&(buffer[3]==0x80))
return 2;
else
return 0;
}
void swap_header(unsigned char* header, int loadlength) {
unsigned char temp;
int i;
/* Btyeswap if .v64 image. */
if( header[0]==0x37) {
for (i = 0; i < loadlength; i+=2) {
temp= header[i];
header[i]= header[i+1];
header[i+1]=temp;
}
}
/* Wordswap if .n64 image. */
else if( header[0]==0x40) {
for (i = 0; i < loadlength; i+=4) {
temp= header[i];
header[i]= header[i+3];
header[i+3]=temp;
temp= header[i+1];
header[i+1]= header[i+2];
header[i+2]=temp;
}
}
}
u8 getCicType(u8 bios_cic) {
u8 cic_buff[2048];
volatile u8 cic_chip;
volatile u32 val;
if (bios_cic) {
evd_setCfgBit(ED_CFG_SDRAM_ON, 0);
sleep(10);
val = *(u32 *) 0xB0000170;
dma_read_s(cic_buff, 0xB0000040, 1024);
cic_chip = get_cic(cic_buff);
evd_setCfgBit(ED_CFG_SDRAM_ON, 1);
sleep(10);
}
else {
val = *(u32 *) 0xB0000170;
dma_read_s(cic_buff, 0xB0000040, 1024);
cic_chip = get_cic(cic_buff);
}
return cic_chip;
}
int get_cic(unsigned char *buffer) {
unsigned int crc;
// figure out the CIC
crc = CRC_Calculate(0, buffer, 1000);
switch(crc) {
case 0x303faac9:
case 0xf0da3d50:
return 1;
case 0xf3106101:
return 2;
case 0xe7cd9d51:
return 3;
case 0x7ae65c9:
return 5;
case 0x86015f8f:
return 6;
}
return 2;
}
int get_cic_save(char *cartid, int *cic, int *save) {
// variables
int NUM_CARTS = 137;
int i;
//data arrays
/*
char *names[] = {
"gnuboy64lite", "FRAMTestRom", "SRAMTestRom", "Worms Armageddon",
"Super Smash Bros.", "Banjo-Tooie", "Blast Corps", "Bomberman Hero",
"Body Harvest", "Banjo-Kazooie", "Bomberman 64",
"Bomberman 64: Second Attack", "Command & Conquer", "Chopper Attack",
"NBA Courtside 2 featuring Kobe Bryant", "Penny Racers",
"Chameleon Twist", "Cruis'n USA", "Cruis'n World",
"Legend of Zelda: Majora's Mask, The", "Donkey Kong 64",
"Donkey Kong 64", "Donald Duck: Goin' Quackers",
"Loony Toons: Duck Dodgers", "Diddy Kong Racing", "PGA European Tour",
"Star Wars Episode 1 Racer", "AeroFighters Assault", "Bass Hunter 64",
"Conker's Bad Fur Day", "F-1 World Grand Prix", "Star Fox 64",
"F-Zero X", "GT64 Championship Edition", "GoldenEye 007", "Glover",
"Bomberman 64", "Indy Racing 2000",
"Indiana Jones and the Infernal Machine", "Jet Force Gemini",
"Jet Force Gemini", "Earthworm Jim 3D", "Snowboard Kids 2",
"Kirby 64: The Crystal Shards", "Fighters Destiny",
"Major League Baseball featuring Ken Griffey Jr.",
"Killer Instinct Gold", "Ken Griffey Jr's Slugfest", "Mario Kart 64",
"Mario Party", "Lode Runner 3D", "Megaman 64", "Mario Tennis",
"Mario Golf", "Mission: Impossible", "Mickey's Speedway USA",
"Monopoly", "Paper Mario", "Multi-Racing Championship",
"Big Mountain 2000", "Mario Party 3", "Mario Party 2", "Excitebike 64",
"Dr. Mario 64", "Star Wars Episode 1: Battle for Naboo",
"Kobe Bryant in NBA Courtside", "Excitebike 64",
"Ogre Battle 64: Person of Lordly Caliber", "Pokémon Stadium 2",
"Pokémon Stadium 2", "Perfect Dark", "Pokémon Snap",
"Hey you, Pikachu!", "Pokémon Snap", "Pokémon Puzzle League",
"Pokémon Stadium", "Pokémon Stadium", "Pilotwings 64",
"Top Gear Overdrive", "Resident Evil 2", "New Tetris, The",
"Star Wars: Rogue Squadron", "Ridge Racer 64",
"Star Soldier: Vanishing Earth", "AeroFighters Assault",
"Starshot Space Circus", "Super Mario 64", "Starcraft 64",
"Rocket: Robot on Wheels", "Space Station Silicon Valley",
"Star Wars: Shadows of the Empire", "Tigger's Honey Hunt",
"1080º Snowboarding", "Tom & Jerry in Fists of Furry",
"Mischief Makers", "All-Star Tennis '99", "Tetrisphere",
"V-Rally Edition '99", "V-Rally Edition '99", "WCW/NWO Revenge",
"WWF: No Mercy", "Waialae Country Club: True Golf Classics",
"Wave Race 64", "Worms Armageddon", "WWF: Wrestlemania 2000",
"Cruis'n Exotica", "Yoshi's Story", "Harvest Moon 64",
"Legend of Zelda: Ocarina of Time, The",
"Legend of Zelda: Majora's Mask, The", "Airboarder 64",
"Bakuretsu Muteki Bangaioh", "Choro-Q 64 II", "Custom Robo",
"Custom Robo V2", "Densha de Go! 64", "Doraemon: Mittsu no Seireiseki",
"Dezaemon 3D", "Transformers Beast Wars",
"Transformers Beast Wars Metals", "64 Trump Collection", "Bass Rush",
"ECW Hardcore Revolution", "40 Winks", "Aero Gauge",
"Aidyn Chronicles The First Mage", "Derby Stallion 64",
"Doraemon 2 - Hikari no Shinden", "Doraemon 3 - Nobi Dai No Machi SOS",
"F-1 World Grand Prix II", "Fushigi no Dungeon - Furai no Shiren 2",
"Heiwa Pachinko World 64", "Neon Genesis Evangelion",
"Racing Simulation", "Tsumi to Batsu", "Sonic Wings Assault",
"Virtual Pro Wrestling", "Virtual Pro Wrestling 2", "Wild Choppers"
};
*/
char *cartIDs[] = {
"DZ", "B6", "ZY", "ZZ", "AD", "AL", "B7", "BC", "BD", "BH", "BK", "BM",
"BV", "CC", "CH", "CK", "CR", "CT", "CU", "CW", "DL", "DO", "DP", "DQ",
"DU", "DY", "EA", "EP", "ER", "FH", "FU", "FW", "FX", "FZ", "GC", "GE",
"GV", "HA", "IC", "IJ", "JD", "JF", "JM", "K2", "K4", "KA", "KG", "KI",
"KJ", "KT", "LB", "LR", "M6", "M8", "MF", "MI", "ML", "MO", "MQ", "MR",
"MU", "MV", "MW", "MX", "N6", "NA", "NB", "NX", "OB", "P2", "P3", "PD",
"PF", "PG", "PH", "PN", "PO", "PS", "PW", "RC", "RE", "RI", "RS", "RZ",
"S6", "SA", "SC", "SM", "SQ", "SU", "SV", "SW", "T9", "TE", "TJ", "TM",
"TN", "TP", "VL", "VY", "W2", "W4", "WL", "WR", "WU", "WX", "XO", "YS",
"YW", "ZL", "ZS", "AB", "BN", "CG", "CX", "CZ", "D6", "DR", "DZ", "OH",
"TB", "TC", "VB", "WI", "4W", "AG", "AY", "DA", "D2", "3D", "F2", "SI",
"HP", "EV", "MG", "GU", "SA", "VP", "A2", "WC"
};
/*
int saveTypes[] = {
5, 1, 6, 5, 5, 5, 5, 5, 5, 4, 5, 4, 5, 5, 5, 6, 4, 6, 6, 5, 5, 5, 5, 6,
5, 5, 6, 5, 5, 1, 5, 5, 5, 5, 5, 5, 4, 4, 5, 5, 5, 5, 1, 5, 4, 5, 5, 5,
4, 6, 1, 5, 5, 5, 4, 5, 5, 6, 5, 6, 5, 5, 6, 6, 1, 4, 4, 6, 4, 5, 4, 4,
4, 4, 5, 5, 1, 1, 5, 6, 5, 5, 5, 5, 4, 5, 5, 5, 4, 1, 5, 5, 5, 5, 5, 5,
1, 4, 5, 5, 5, 1, 5, 6, 1, 1, 4, 5, 5, 5, 5, 6, 1, 5, 1, 5, 5, 5, 1, 1,
5, 5, 1, 1, 6, 6, 6, 4, 5, 6, 5, 5, 5, 1, 1, 5
};
*/
// Banjo-Tooie B7 -> set to sram 'cause crk converts ek16->sram
int saveTypes[] = {
2, 1, 5, 1, 3, 1, 1, 3, 3, 3, 3, 3, 3, 5, 3, 5, 3, 3, 3, 4, 5, 4, 4, 3,
3, 3, 3, 4, 3, 3, 4, 3, 3, 1, 3, 3, 3, 3, 3, 3, 5, 5, 3, 3, 3, 3, 1, 3,
5, 3, 3, 3, 5, 4, 1, 3, 3, 3, 5, 3, 3, 4, 3, 4, 3, 3, 4, 4, 1, 5, 5, 4,
5, 3, 5, 5, 5, 5, 3, 3, 1, 1, 3, 4, 3, 3, 3, 3, 5, 3, 3, 3, 5, 1, 3, 3,
3, 3, 3, 3, 1, 5, 3, 3, 3, 1, 3, 4, 1, 1, 5, 3, 3, 3, 3, 4, 1, 3, 1, 3,
3, 3, 1, 1, 3, 3, 1, 1, 4, 4, 4, 5, 3, 4, 3, 3, 3, 1, 1, 3
};
//bt cic to 2 pos6 was 5
int cicTypes[] = {
2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 6, 5, 5, 5, 2,
2, 3, 2, 2, 2, 2, 5, 2, 1, 6, 2, 2, 2, 2, 2, 2, 5, 5, 2, 2, 3, 2, 3, 2,
3, 2, 2, 2, 2, 2, 2, 2, 5, 2, 3, 2, 2, 2, 2, 3, 2, 2, 3, 3, 2, 3, 3, 5,
3, 2, 3, 2, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 6, 2, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2
};
// search for cartid
for (i=0; i<NUM_CARTS; i++)
if (strcmp(cartid, cartIDs[i]) == 0)
break;
if (i == NUM_CARTS) {
// cart not in list
*cic = 2;
*save = 0;
return 0; // not found
}
// cart found
*cic = cicTypes[i];
*save = saveTypes[i];
return 1; // found
}
const char* saveTypeToExtension(int type, int etype) {
static char* str = "SAV";
if(etype==0){
switch(type) {
case 0: str = "OFF"; break;
case 1: str = "SRM"; break;
case 2: str = "128"; break;
case 3: str = "E4K"; break;
case 4: str = "E16"; break;
case 5: str = "FLA"; break;
default: str = "SAV";
}
}
else {
switch(type) {
case 0: str = "OFF"; break;
case 1: str = "SRA"; break;
case 2: str = "SRA"; break;
case 3: str = "EEP"; break;
case 4: str = "EEP"; break;
case 5: str = "FLA"; break;
default: str = "SAV";
}
}
return str;
}
int saveTypeToSize(int type) {
switch(type) {
case 0: return 0; break;
case 1: return SAVE_SIZE_SRAM; break;
case 2: return SAVE_SIZE_SRAM128; break;
case 3: return SAVE_SIZE_EEP4k; break;
case 4: return SAVE_SIZE_EEP16k; break;
case 5: return SAVE_SIZE_FLASH; break;
default: return 0;
}
}
/*
#define SAVE_TYPE_OFF 0
#define SAVE_TYPE_SRAM 1
#define SAVE_TYPE_SRAM128 2
#define SAVE_TYPE_EEP4k 3
#define SAVE_TYPE_EEP16k 4
#define SAVE_TYPE_FLASH 5
*/
//switch to the correct dump function
int getSaveFromCart(int stype, uint8_t *buffer) {
int ret=0;
switch(stype) {
case 0: return 0;
case 1: ret = getSRAM32(buffer); break;
case 2: ret = getSRAM128(buffer); break;
case 3: ret = getEeprom4k(buffer); break;
case 4: ret = getEeprom16k(buffer); break;
case 5: ret = getFlashRAM(buffer); break;
default: return 0;
}
return ret;
}
//switch to the correct upload function
int pushSaveToCart(int stype, uint8_t *buffer){
int ret=0;
switch(stype) {
case 0: return 0;
case 1: ret = setSRAM32(buffer); break;
case 2: ret = setSRAM128(buffer); break;
case 3: ret = setEeprom4k(buffer); break;
case 4: ret = setEeprom16k(buffer); break;
case 5: ret = setFlashRAM(buffer); break;
default: return 0;
}
return ret;
}
int getSRAM( uint8_t *buffer, int size){
while (dma_busy()) ;
IO_WRITE(PI_BSD_DOM2_LAT_REG, 0x05);
IO_WRITE(PI_BSD_DOM2_PWD_REG, 0x0C);
IO_WRITE(PI_BSD_DOM2_PGS_REG, 0x0D);
IO_WRITE(PI_BSD_DOM2_RLS_REG, 0x02);
while (dma_busy()) ;
PI_Init();
sleep(1000);
while (dma_busy()) ;
PI_DMAFromSRAM(buffer, 0, size) ;
while (dma_busy()) ;
IO_WRITE(PI_BSD_DOM2_LAT_REG, 0x40);
IO_WRITE(PI_BSD_DOM2_PWD_REG, 0x12);
IO_WRITE(PI_BSD_DOM2_PGS_REG, 0x07);
IO_WRITE(PI_BSD_DOM2_RLS_REG, 0x03);
return 1;
}
int getSRAM32( uint8_t *buffer) {
return getSRAM(buffer, SAVE_SIZE_SRAM);
}
int getSRAM128( uint8_t *buffer) {
return getSRAM(buffer, SAVE_SIZE_SRAM128);
}
//working hurray :D
int getEeprom4k( uint8_t *buffer) {
if(eeprom_present()){
int blocks=SAVE_SIZE_EEP4k/8;
for( int b = 0; b < blocks; b++ ) {
eeprom_read( b, &buffer[b * 8] );
}
return 1;
}
return 0;
}
int getEeprom16k( uint8_t *buffer){
int blocks=SAVE_SIZE_EEP16k/8;
for( int b = 0; b < blocks; b++ ) {
eeprom_read( b, &buffer[b * 8] );
}
return 1;
}
int getFlashRAM( uint8_t *buffer){
evd_setSaveType(SAVE_TYPE_SRAM128); //2
sleep(10);
int s = getSRAM(buffer, SAVE_SIZE_SRAM128);
data_cache_hit_writeback_invalidate(buffer,SAVE_SIZE_SRAM128);
sleep(10);
evd_setSaveType(SAVE_TYPE_FLASH); //5
return 1;
}
/*
sram upload
*/
int setSRAM( uint8_t *buffer,int size){
//half working
PI_DMAWait();
//Timing
PI_Init_SRAM();
//Readmode
PI_Init();
data_cache_hit_writeback_invalidate(buffer,size);
while (dma_busy());
PI_DMAToSRAM(buffer, 0, size);
data_cache_hit_writeback_invalidate(buffer,size);
//Wait
PI_DMAWait();
//Restore evd Timing
setSDTiming();
return 1;
}
int setSRAM32( uint8_t *buffer){
return setSRAM(buffer, SAVE_SIZE_SRAM);
}
int setSRAM128( uint8_t *buffer){
return setSRAM(buffer, SAVE_SIZE_SRAM128);
}
//working hurray :D
int setEeprom4k( uint8_t *buffer){
if(eeprom_present()){
int blocks=SAVE_SIZE_EEP4k/8;
for( int b = 0; b < blocks; b++ ) {
eeprom_write( b, &buffer[b * 8] );
}
return 1;
}
return 0;
}
int setEeprom16k(uint8_t *buffer){
int blocks=SAVE_SIZE_EEP16k/8;
for( int b = 0; b < blocks; b++ ) {
eeprom_write( b, &buffer[b * 8] );
}
return 1;
}
//isn't working nor finished
int setFlashRAM(uint8_t *buffer){
evd_setSaveType(SAVE_TYPE_SRAM128); //2
sleep(10);
int s = setSRAM(buffer, SAVE_SIZE_SRAM128);
evd_setSaveType(SAVE_TYPE_FLASH); //5
return 1;
}
void setSDTiming(void){
/*
PI_BSD_DOM1_LAT_REG (0x04600014) write word 0x000000FF
PI_BSD_DOM1_PWD_REG (0x04600018) write word 0x000000FF
PI_BSD_DOM1_PGS_REG (0x0460001C) write word 0x0000000F
PI_BSD_DOM1_RLS_REG (0x04600020) write word 0x00000003
*
PI_BSD_DOM1_LAT_REG (0x04600014) write word 0x00000040
PI_BSD_DOM1_PWD_REG (0x04600018) write word 0x00803712
PI_BSD_DOM1_PGS_REG (0x0460001C) write word 0x00008037
PI_BSD_DOM1_RLS_REG (0x04600020) write word 0x00000803
*/
// PI_DMAWait();
IO_WRITE(PI_BSD_DOM1_LAT_REG, 0x40);
IO_WRITE(PI_BSD_DOM1_PWD_REG, 0x12);
IO_WRITE(PI_BSD_DOM1_PGS_REG, 0x07);
IO_WRITE(PI_BSD_DOM1_RLS_REG, 0x03);
IO_WRITE(PI_BSD_DOM2_LAT_REG, 0x40);
IO_WRITE(PI_BSD_DOM2_PWD_REG, 0x12);
IO_WRITE(PI_BSD_DOM2_PGS_REG, 0x07);
IO_WRITE(PI_BSD_DOM2_RLS_REG, 0x03);
}
void _data_cache_invalidate_all(void) {
asm(
"li $8,0x80000000;"
"li $9,0x80000000;"
"addu $9,$9,0x1FF0;"
"cacheloop:;"
"cache 1,0($8);"
"cache 1,16($8);"
"cache 1,32($8);"
"cache 1,48($8);"
"cache 1,64($8);"
"cache 1,80($8);"
"cache 1,96($8);"
"addu $8,$8,112;"
"bne $8,$9,cacheloop;"
"cache 1,0($8);"
: // no outputs
: // no inputs
: "$8", "$9" // trashed registers
);
}
void restoreTiming(void) {
//n64 timing restore :>
IO_WRITE(PI_BSD_DOM1_LAT_REG, 0x40);
IO_WRITE(PI_BSD_DOM1_PWD_REG, 0x12);
IO_WRITE(PI_BSD_DOM1_PGS_REG, 0x07);
IO_WRITE(PI_BSD_DOM1_RLS_REG, 0x03);
IO_WRITE(PI_BSD_DOM2_LAT_REG, 0x40);
IO_WRITE(PI_BSD_DOM2_PWD_REG, 0x12);
IO_WRITE(PI_BSD_DOM2_PGS_REG, 0x07);
IO_WRITE(PI_BSD_DOM2_RLS_REG, 0x03);
}
/*
* Load an image from the rom filesystem, returning a pointer to the
* sprite that hold the image.
*/
sprite_t *loadImageDFS(char *fname) {
int size, x, y, n, fd;
u8 *tbuf;
u8 *ibuf;
sprite_t *sbuf;
fd = dfs_open(fname);
if (fd < 0)
return 0; // couldn't open image
size = dfs_size(fd);
tbuf = malloc(size);
if (!tbuf) {
dfs_close(fd);
return 0; // out of memory
}
dfs_read(tbuf, 1, size, fd);
dfs_close(fd);
ibuf = stbi_load_from_memory(tbuf, size, &x, &y, &n, 4);
free(tbuf);
if (!ibuf)
return 0; // couldn't decode image
sbuf = (sprite_t*)malloc(sizeof(sprite_t) + x * y * 2);
if (!sbuf) {
stbi_image_free(ibuf);
return 0; // out of memory
}
sbuf->width = x;
sbuf->height = y;
sbuf->bitdepth = 2;
sbuf->format = 0;
sbuf->hslices = x / 32;
sbuf->vslices = y / 16;
color_t *src = (color_t*)ibuf;
u16 *dst = (u16*)((u32)sbuf + sizeof(sprite_t));
for (int j=0; j<y; j++)
for (int i=0; i<x; i++)
dst[i + j*x] = graphics_convert_color(src[i + j*x]) & 0x0000FFFF;
/* Invalidate data associated with sprite in cache */
data_cache_hit_writeback_invalidate( sbuf->data, sbuf->width * sbuf->height * sbuf->bitdepth );
stbi_image_free(ibuf);
return sbuf;
}
sprite_t *loadImage32(u8 *png, int size) {
int x, y, n, fd;
u8 *tbuf;
u32 *ibuf;
sprite_t *sbuf;
tbuf = malloc(size);
memcpy(tbuf,png,size);
ibuf = (u32*)stbi_load_from_memory(tbuf, size, &x, &y, &n, 4);
free(tbuf);
if (!ibuf)
return 0; // couldn't decode image
sbuf = (sprite_t*)malloc(sizeof(sprite_t) + x * y * 4);
if (!sbuf) {
stbi_image_free(ibuf);
return 0; // out of memory
}
sbuf->width = x;
sbuf->height = y;
sbuf->bitdepth = 4;
sbuf->format = 0;
sbuf->hslices = x / 32;
sbuf->vslices = y / 32;
// color_t *src = (color_t*)ibuf;
u32 *dst = (u32*)((u32)sbuf + sizeof(sprite_t));
for (int j=0; j<y; j++)
for (int i=0; i<x; i++)
dst[i + j*x] = ibuf[i + j*x];
/* Invalidate data associated with sprite in cache */
data_cache_hit_writeback_invalidate( sbuf->data, sbuf->width * sbuf->height * sbuf->bitdepth );
stbi_image_free(ibuf);
return sbuf;
}
sprite_t *loadImage32DFS(char *fname) {
int size, x, y, n, fd;
u8 *tbuf;
u32 *ibuf;
sprite_t *sbuf;
fd = dfs_open(fname);
if (fd < 0)
return 0; // couldn't open image
size = dfs_size(fd);
tbuf = malloc(size);
if (!tbuf) {
dfs_close(fd);
return 0; // out of memory
}
dfs_read(tbuf, 1, size, fd);
dfs_close(fd);
ibuf = (u32*)stbi_load_from_memory(tbuf, size, &x, &y, &n, 4);
free(tbuf);
if (!ibuf)
return 0; // couldn't decode image
sbuf = (sprite_t*)malloc(sizeof(sprite_t) + x * y * 4);
if (!sbuf) {
stbi_image_free(ibuf);
return 0; // out of memory
}
sbuf->width = x;
sbuf->height = y;
sbuf->bitdepth = 4;
sbuf->format = 0;
sbuf->hslices = x / 32;
sbuf->vslices = y / 32;
// color_t *src = (color_t*)ibuf;
u32 *dst = (u32*)((u32)sbuf + sizeof(sprite_t));
for (int j=0; j<y; j++)
for (int i=0; i<x; i++)
dst[i + j*x] = ibuf[i + j*x];
/* Invalidate data associated with sprite in cache */
data_cache_hit_writeback_invalidate( sbuf->data, sbuf->width * sbuf->height * sbuf->bitdepth );
stbi_image_free(ibuf);
return sbuf;
}
/*
* Draw an image to the screen using the sprite passed.
*/
void drawImage(display_context_t dcon, sprite_t *sprite) {
int x, y = 0;
rdp_sync(SYNC_PIPE);
rdp_set_default_clipping();
rdp_enable_texture_copy();
rdp_attach_display(dcon);
// Draw image
for (int j=0; j<sprite->vslices; j++) {
x = 0;
for (int i=0; i<sprite->hslices; i++) {
rdp_sync(SYNC_PIPE);
rdp_load_texture_stride(0, 0, MIRROR_DISABLED, sprite, j*sprite->hslices + i);
rdp_draw_sprite(0, x, y);
x += 32;
}
y += 16;
}
rdp_detach_display();
}
#define CIC_6101 1
#define CIC_6102 2
#define CIC_6103 3
#define CIC_6104 4
#define CIC_6105 5
#define CIC_6106 6
#define ROM ((vu32 *)0xB0000000)
#define EXE_START 0xB0001000
#define EXE_SIZE 0x00100004
#define TV_TYPE *(vu32 *)0x80000300
#define RAM_SIZE_1 *(vu32 *)0x80000318
#define RAM_SIZE_2 *(vu32 *)0x800003F0
void simulate_boot(u32 cic_chip, u8 gBootCic, u32 *cheat_lists[2]) {
// Clear screen
IO_WRITE(VI_V_INT, 0x3FF);
IO_WRITE(VI_H_LIMITS, 0);
IO_WRITE(VI_CUR_LINE, 0);
// Reset controller and clear interrupt
IO_WRITE(PI_STATUS_REG, 0x03);
// Set cart latency registers with values specified in ROM
u32 lat = ROM[0];
IO_WRITE(PI_BSD_DOM1_LAT_REG, lat & 0xFF);
IO_WRITE(PI_BSD_DOM1_PWD_REG, lat >> 8);
IO_WRITE(PI_BSD_DOM1_PGS_REG, lat >> 16);
IO_WRITE(PI_BSD_DOM1_RLS_REG, lat >> 20);
// Fix RAM size location (State required by CIC-NUS-6105)
vu32 *ram_size = (cic_chip == CIC_6105) ? &RAM_SIZE_2 : &RAM_SIZE_1;
*ram_size = (gBootCic == CIC_6105) ? RAM_SIZE_2 : RAM_SIZE_1;
if (force_tv) {
/*
* This magic bit-twiddling is required to retain backward compatibility
* with old ini files. It converts alt64's tv mode to N64's tv mode:
* alt64:
* 0: Use default
* 1: Force NTSC
* 2: Force PAL
* 3: Force M-PAL
* N64:
* 0: PAL
* 1: NTSC
* 2: M-PAL
* 3: Unused
*/
TV_TYPE = MIN((~force_tv - 1) & 3, 2);
}
if (gCheats) {
// Copy patcher into a memory location where it will not be overwritten
void *patcher = (void*)0x80700000; // Temporary patcher location
u32 patcher_length = &&patcher_end - &&patcher_start;
memcpy(patcher, &&patcher_start, patcher_length);
// Copy code lists into memory, behind the patcher
u32 *p = patcher + patcher_length;
*(u32**)0xA06FFFFC = p; // Save temporary code list location
for (int i = 0; i < 2; i++) {
int j = -2;
do {
j += 2;
patcher_length += 8;
*p++ = cheat_lists[i][j];
*p++ = cheat_lists[i][j + 1];
} while (cheat_lists[i][j] || cheat_lists[i][j + 1]);
}
// Write cache to physical memory and invalidate
data_cache_hit_writeback(patcher, patcher_length);
inst_cache_hit_invalidate(patcher, patcher_length);
}
// Start game via CIC boot code
asm __volatile__ (
".set noreorder;"
"lui $t0, 0x8000;"
// State required by all CICs
"move $s3, $zero;" // osRomType (0: N64, 1: 64DD)
"lw $s4, 0x0300($t0);" // osTvType (0: PAL, 1: NTSC, 2: MPAL)
"move $s5, $zero;" // osResetType (0: Cold, 1: NMI)
"lui $s6, %%hi(cic_ids);" // osCicId (See cic_ids LUT)
"addu $s6, $s6, %0;"
"lbu $s6, %%lo(cic_ids)($s6);"
"lw $s7, 0x0314($t0);" // osVersion
// Copy PIF code to RSP IMEM (State required by CIC-NUS-6105)
"lui $a0, 0xA400;"
"lui $a1, %%hi(imem_start);"
"ori $a2, $zero, 0x0008;"
"1:"
"lw $t0, %%lo(imem_start)($a1);"
"addiu $a1, $a1, 4;"
"sw $t0, 0x1000($a0);"
"addiu $a2, $a2, -1;"
"bnez $a2, 1b;"
"addiu $a0, $a0, 4;"
// Copy CIC boot code to RSP DMEM
"lui $t3, 0xA400;"
"ori $t3, $t3, 0x0040;" // State required by CIC-NUS-6105
"move $a0, $t3;"
"lui $a1, 0xB000;"
"ori $a2, 0x0FC0;"
"1:"
"lw $t0, 0x0040($a1);"
"addiu $a1, $a1, 4;"
"sw $t0, 0x0000($a0);"
"addiu $a2, $a2, -4;"
"bnez $a2, 1b;"
"addiu $a0, $a0, 4;"
// Boot with or without cheats enabled?
"beqz %1, 2f;"
// Patch CIC boot code
"lui $a1, %%hi(cic_patch_offsets);"
"addu $a1, $a1, %0;"
"lbu $a1, %%lo(cic_patch_offsets)($a1);"
"addu $a0, $t3, $a1;"
"lui $a1, 0x081C;" // "j 0x80700000"
"ori $a2, $zero, 0x06;"
"bne %0, $a2, 1f;"
"lui $a2, 0x8188;"
"ori $a2, $a2, 0x764A;"
"xor $a1, $a1, $a2;" // CIC-NUS-6106 encryption
"1:"
"sw $a1, 0x0700($a0);" // Patch CIC boot code with jump
// Patch CIC boot code to disable checksum failure halt
// Required for CIC-NUS-6105
"ori $a2, $zero, 0x05;"
"beql %0, $a2, 2f;"
"sw $zero, 0x06CC($a0);"
// Go!
"2:"
"lui $sp, 0xA400;"
"ori $ra, $sp, 0x1550;" // State required by CIC-NUS-6105
"jr $t3;"
"ori $sp, $sp, 0x1FF0;" // State required by CIC-NUS-6105
// Table of all CIC IDs
"cic_ids:"
".byte 0x00;" // Unused
".byte 0x3F;" // NUS-CIC-6101
".byte 0x3F;" // NUS-CIC-6102
".byte 0x78;" // NUS-CIC-6103
".byte 0x00;" // Unused
".byte 0x91;" // NUS-CIC-6105
".byte 0x85;" // NUS-CIC-6106
".byte 0x00;" // Unused
"cic_patch_offsets:"
".byte 0x00;" // Unused
".byte 0x30;" // CIC-NUS-6101
".byte 0x2C;" // CIC-NUS-6102
".byte 0x20;" // CIC-NUS-6103
".byte 0x00;" // Unused
".byte 0x8C;" // CIC-NUS-6105
".byte 0x60;" // CIC-NUS-6106
".byte 0x00;" // Unused
// These instructions are copied to RSP IMEM; we don't execute them.
"imem_start:"
"lui $t5, 0xBFC0;"
"1:"
"lw $t0, 0x07FC($t5);"
"addiu $t5, $t5, 0x07C0;"
"andi $t0, $t0, 0x0080;"
"bnezl $t0, 1b;"
"lui $t5, 0xBFC0;"
"lw $t0, 0x0024($t5);"
"lui $t3, 0xB000;"
: // outputs
: "r" (cic_chip), // inputs
"r" (gCheats)
: "$4", "$5", "$6", "$8", // clobber
"$11", "$19", "$20", "$21",
"$22", "$23", "memory"
);
patcher_start:
asm __volatile__ (
".set noat;"
".set noreorder;"
// Installs general exception handler, router, and code engine
"patcher:"
"lui $t5, 0x8070;" // Start of temporary patcher location
"lui $t6, 0x8000;" // Start of cached memory
"li $t7, 0x007FFFFF;" // Address mask
"li $t8, 0x807C5C00;" // Permanent code engine location
// "lw $t9, 0xFFFC($t5);" // Assembles incorrectly (gcc sucks)
"addiu $t9, $t5, -4;" // Go to hell, gcc!
"lw $t9, 0x0000($t9);" // Get temporary code lists location
"1:"
// Apply boot-time cheats
"lw $v0, 0x0000($t9);"
"bnez $v0, 2f;"
"lw $v1, 0x0004($t9);"
"beqz $v1, 1f;"
"2:"
"addiu $t9, $t9, 0x0008;"
"srl $t2, $v0, 24;"
"li $at, 0xEE;"
"beq $t2, $at, 5f;"
"li $at, 0xF0;"
"and $v0, $v0, $t7;"
"beq $t2, $at, 4f;"
"or $v0, $v0, $t6;"
"li $at, 0xF1;"
"beq $t2, $at, 3f;"
"nop;"
// Apply FF code type
"li $at, 0xFFFFFFFC;" // Mask address
"b 1b;"
"and $t8, $v0, $at;" // Update permanent code engine location
"3:"
// Apply F1 code type
"b 1b;"
"sh $v1, 0x0000($v0);"
"4:"
// Apply F0 code type
"b 1b;"
"sb $v1, 0x0000($v0);"
"5:"
// Apply EE code type
"lui $v0, 0x0040;"
"sw $v0, 0x0318($t6);"
"b 1b;"
"sw $v0, 0x03F0($t6);"
"1:"
// Install General Exception Handler
"srl $at, $t8, 2;"
"and $v0, $at, $t7;"
"lui $at, 0x0800;"
"or $v0, $v0, $at;" // Jump to code engine
"sw $v0, 0x0180($t6);"
"sw $zero, 0x0184($t6);"
// Install code engine to permanent location
"sw $t8, 0x0188($t6);" // Save permanent code engine location
"la $at, %%lo(patcher);"
"la $v0, %%lo(code_engine_start);"
"la $v1, %%lo(code_engine_end);"
"subu $at, $v0, $at;" // Get patcher length
"subu $v1, $v1, $v0;" // Get code engine length
"addu $v0, $t5, $at;" // Get temporary code engine location
"1:"
"lw $at, 0x0000($v0);"
"addiu $v1, $v1, -4;"
"sw $at, 0x0000($t8);"
"addiu $v0, $v0, 4;"
"bgtz $v1, 1b;"
"addiu $t8, $t8, 4;"
"sw $t8, 0x018C($t6);" // Save permanent code list location
"1:"
// Install in-game code list
"lw $v0, 0x0000($t9);"
"lw $v1, 0x0004($t9);"
"addiu $t9, $t9, 8;"
"sw $v0, 0x0000($t8);"
"sw $v1, 0x0004($t8);"
"bnez $v0, 1b;"
"addiu $t8, $t8, 8;"
"bnez $v1, 1b;"
"nop;"
// Write cache to physical memory and invalidate (GEH)
"ori $t0, $t6, 0x0180;"
"li $at, 0x0010;"
"1:"
"cache 0x19, 0x0000($t0);" // Data cache hit writeback
"cache 0x10, 0x0000($t0);" // Instruction cache hit invalidate
"addiu $at, $at, -4;"
"bnez $at, 1b;"
"addiu $t0, $t0, 4;"