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284 Commits

Author SHA1 Message Date
Rekai Nyangadzayi Musuka 746158043d chore: add more debug information to CPU panic method 2022-02-05 13:46:24 -04:00
Rekai Nyangadzayi Musuka 25300c8a9f chore: give more descriptive panic messages when changing mode fails 2022-02-04 16:54:57 -04:00
Rekai Nyangadzayi Musuka 27d0ba8c7e chore: clean up THUMB instruction decoding 2022-02-04 15:57:46 -04:00
Rekai Nyangadzayi Musuka 2f74b61f2e feat: parse cartridge header 2022-02-04 05:54:06 -04:00
Rekai Nyangadzayi Musuka b233981a34 feat: rename ARM and THUMB SWI functions 2022-02-04 04:34:47 -04:00
Rekai Nyangadzayi Musuka 1b8db0c427 chore: group THUMB and select ARM instructions together (same file) 2022-02-04 04:18:20 -04:00
Rekai Nyangadzayi Musuka 3e4f9eddb2 feat: integrate zig-clap with ZBA 2022-02-04 03:12:35 -04:00
Rekai Nyangadzayi Musuka 6ab4610a81 fix(cpu): properly decode format 7 and 8 2022-02-03 01:29:18 -04:00
Rekai Nyangadzayi Musuka 91384a7c68 fix(cpu): resolve edge cases in THUMB Format 5 2022-02-03 00:55:57 -04:00
Rekai Nyangadzayi Musuka c6bb4bf8e1 fix(cpu): allow for select values to overflow 
FuzzARM found these operations which panicked, when they should
have overflowed. These are now fixed

n = 8000
 2022-02-02 22:49:33 -04:00
Rekai Nyangadzayi Musuka 800ed6f1a7 feat(cpu): implement format 13 
While bugs do exist, at this point all THUMB and ARMv4 instructions
have been implemented! Yay!
 2022-02-02 22:31:21 -04:00
Rekai Nyangadzayi Musuka 027e4fb57b feat(cpu): implement THUMB format 17 2022-02-02 22:31:08 -04:00
Rekai Nyangadzayi Musuka 1378c809e6 feat(cpu): implement THUMB format11 2022-02-02 22:30:46 -04:00
Rekai Nyangadzayi Musuka 33399e9517 chore: update to latest zig nightly 2022-02-02 21:26:12 -04:00
Rekai Nyangadzayi Musuka 99492a6782 chore: progress towards passing ldr/str thumb in armwrestler 2022-02-02 21:14:46 -04:00
Rekai Nyangadzayi Musuka 8b574efe85 fix(cpu): properly negate in NEG 2022-02-02 20:12:20 -04:00
Rekai Nyangadzayi Musuka 9fd03d2a92 fix(cpu): reimplement THUMB offset shifts 2022-02-02 20:12:07 -04:00
Rekai Nyangadzayi Musuka 9affe01da8 fix(cpu): op == 0b00 decodes to add in format 5 2022-02-02 18:58:06 -04:00
Rekai Nyangadzayi Musuka 784bc81a4a fix(cpu): account for overflow in THUMB alu MUL 2022-02-02 18:57:33 -04:00
Rekai Nyangadzayi Musuka 045c98de1f chore: use if-else when decoding THUMB instructions 2022-02-02 18:48:47 -04:00
Rekai Nyangadzayi Musuka c2901ee0d8 fix(cpu): account for rn in rlist in block data transfer 2022-02-02 17:35:33 -04:00
Rekai Nyangadzayi Musuka d95efa5b12 feat: implement LDM/STM behaviour when S is set 2022-02-02 16:12:47 -04:00
Rekai Nyangadzayi Musuka 237beb9caa feat(cpu): Pass all LDR/STR ARMwrestler tests 2022-02-02 14:07:18 -04:00
Rekai Nyangadzayi Musuka 30bad76e44 feat(cpu): decode and implement all necessary ARM CPU instructions 2022-02-02 12:06:41 -04:00
Rekai Nyangadzayi Musuka c34c2ee6eb feat(cpu): implement ARM SWP and SWPB 2022-02-02 08:44:33 -04:00
Rekai Nyangadzayi Musuka 6c7934be70 fix: resolve off by n * 2 when accessing Palette during BG Mode 4 2022-02-01 22:56:53 -04:00
Rekai Nyangadzayi Musuka 48017b45f5 feat(cpu): Implement Multiply Long ARM instructions 2022-02-01 22:09:38 -04:00
Rekai Nyangadzayi Musuka 28c81f79ae fix: no buttons are pressed by default 2022-02-01 20:52:01 -04:00
Rekai Nyangadzayi Musuka a80600156d feat(cpu): implement format 18 THUMB instructions 2022-02-01 19:12:01 -04:00
Rekai Nyangadzayi Musuka 0d7600ed7a chore: more detailed panic message 2022-02-01 19:11:56 -04:00
Rekai Nyangadzayi Musuka ca41f6a85c feat(cpu): implement format 10 THUMB instructions 2022-02-01 17:56:11 -04:00
Rekai Nyangadzayi Musuka 85927a943f feat(cpu): implement SWP 2022-02-01 16:30:55 -04:00
Rekai Nyangadzayi Musuka b27bf4a85c fix(cpu): perform MUL with u64s, throw away upper 32 bits 2022-02-01 16:15:08 -04:00
Rekai Nyangadzayi Musuka b07eb22b86 feat: implement keyboard input 2022-02-01 16:11:59 -04:00
Rekai Nyangadzayi Musuka f6e4b4931f chore: don't panic on unsupported BG mode 2022-01-30 02:43:11 -04:00
Rekai Nyangadzayi Musuka e35d81eeb8 chore: tempoarily disable fps counter 2022-01-30 02:42:01 -04:00
Rekai Nyangadzayi Musuka 8c248ffb11 chore: zero-initialize VRAM 2022-01-30 02:39:16 -04:00
Rekai Nyangadzayi Musuka b0332e6eb8 chore: stub KeyInput I/O register 2022-01-30 02:38:29 -04:00
Rekai Nyangadzayi Musuka dd632975f8 fix(cpu): properly decode multiply instructions 2022-01-30 02:16:12 -04:00
Rekai Nyangadzayi Musuka a459d4b433 feat(cpu): implement ARM multiply instructions 2022-01-30 02:04:24 -04:00
Rekai Nyangadzayi Musuka 6c008ce950 fix: allow 32-bit writes to DISPCNT 2022-01-30 01:42:54 -04:00
Rekai Nyangadzayi Musuka 8d1df7ae43 fix(cpu): properly decode ldm stm thumb instructions 2022-01-30 01:12:34 -04:00
Rekai Nyangadzayi Musuka 6ffaf12804 fix(cpu): properly decode THUMB PUSH and POP at comptime 2022-01-30 00:16:13 -04:00
Rekai Nyangadzayi Musuka dc6931639f fix(cpu): don't ignore 11th bit of THUMB BL offset 2022-01-29 23:53:40 -04:00
Rekai Nyangadzayi Musuka e18f10126e feat(cpu): implement thumb push / pop and stub format 13 thumb instrs 2022-01-29 23:22:10 -04:00
Rekai Nyangadzayi Musuka 0598ba402d feat(cpu): implement THUMB format 9 loads / stores 2022-01-29 22:34:40 -04:00
Rekai Nyangadzayi Musuka b8a9aaee86 fix(cpu): resolve issues with unexpected PC value in THUMB 2022-01-29 22:07:36 -04:00
Rekai Nyangadzayi Musuka 00058f6094 feat(cpu): implement THUMB ldmia stmia 2022-01-29 21:10:14 -04:00
Rekai Nyangadzayi Musuka 2dde47318c chore: implement THUMB format 4 instructions 2022-01-29 20:42:13 -04:00
Rekai Nyangadzayi Musuka ae4023e51c chore: dedup code in THUMB instructions 2022-01-29 20:05:27 -04:00