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130 Commits

Author SHA1 Message Date
Rekai Nyangadzayi Musuka 6d5c30ac25 fix: remove accidental rotation in ldrsh instructions 2022-04-13 22:59:32 -03:00
Rekai Nyangadzayi Musuka 80e714e2eb chore: reimplement bus read/writes 2022-04-08 16:48:43 -03:00
Rekai Nyangadzayi Musuka 37a360ec07 fix: force align reads/writes in memory bus rather than in CPU 2022-04-08 15:17:31 -03:00
Rekai Nyangadzayi Musuka 39ab363afa fix: improve perf of instructions w/ rotr 2022-03-16 22:56:37 -03:00
Rekai Nyangadzayi Musuka cb4d3a9a51 chore: replace unnecessarily complex sign extension implementation 2022-02-28 20:38:50 -04:00
Rekai Nyangadzayi Musuka 3746cf6025 chore: don't panic on 32-bit I/O 2022-02-19 06:45:39 -04:00
Rekai Nyangadzayi Musuka d2740e30d9 chore: squash bugs preventing swi_demo.gba from working 2022-02-13 02:29:53 -04:00
Rekai Nyangadzayi Musuka d897c2fdcc fix: don't mask away MSB in THUMB.5 add 2022-02-12 03:23:55 -04:00
Rekai Nyangadzayi Musuka 783706193b fix: properly decode format 11 instructions 2022-02-12 03:13:38 -04:00
Rekai Nyangadzayi Musuka b93bd53529 chore: make use of scoped logging 2022-02-11 01:33:33 -04:00
Rekai Nyangadzayi Musuka ee27053db3 chore: remove TODOs and some useless imports 2022-02-06 19:07:23 -04:00
Rekai Nyangadzayi Musuka bbd4447734 fix(cpu): force align thumb and arm block data transfers 2022-02-06 17:08:12 -04:00
Rekai Nyangadzayi Musuka 225c0f7d55 feat: pass arm.gba 2022-02-06 05:06:25 -04:00
Rekai Nyangadzayi Musuka fcde905ae1 chore: reimplement ARM LDM/STM 2022-02-06 04:34:45 -04:00
Rekai Nyangadzayi Musuka 798987eba0 chore: improve arm ldm/stm 2022-02-05 23:29:34 -04:00
Rekai Nyangadzayi Musuka adfd501fc4 fix(cpu): force-align SWP reads and writes 2022-02-05 23:18:23 -04:00
Rekai Nyangadzayi Musuka 9581e3b3cb fix: force-align ARM STRH reads 2022-02-05 23:09:13 -04:00
Rekai Nyangadzayi Musuka 1b9ab1f1d7 fix: implement the same LDRSH logic as THUMB LDRSH 2022-02-05 23:09:02 -04:00
Rekai Nyangadzayi Musuka c52dc5adb1 fix: PC is 12 ahead when it is rd in str and strb 2022-02-05 21:42:04 -04:00
Rekai Nyangadzayi Musuka 7bfb87a859 fix: listen to my past self 
By deleting this line I go from test 234 to test 355 in arm.gba
 2022-02-05 21:35:26 -04:00
Rekai Nyangadzayi Musuka 2842345111 chore: remove unnecessary @as calls 2022-02-05 21:01:39 -04:00
Rekai Nyangadzayi Musuka aa6f3c7a92 feat: pass thumb.gba 2022-02-05 20:39:15 -04:00
Rekai Nyangadzayi Musuka 3ae24d6977 chore: account for empty rlist in THUMB LDM/STM 2022-02-05 18:03:39 -04:00
Rekai Nyangadzayi Musuka 0a22730479 fix(cpu): handle edge case in LDRSH 2022-02-05 17:12:25 -04:00
Rekai Nyangadzayi Musuka 5ec8d4b0a5 fix: resolve decoding mixup in THUMB format 8 instructions 2022-02-05 14:50:34 -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 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 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 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 c34c2ee6eb feat(cpu): implement ARM SWP and SWPB 2022-02-02 08:44:33 -04:00
Rekai Nyangadzayi Musuka 48017b45f5 feat(cpu): Implement Multiply Long ARM instructions 2022-02-01 22:09:38 -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 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 6ffaf12804 fix(cpu): properly decode THUMB PUSH and POP at comptime 2022-01-30 00:16:13 -04:00