57 Commits

Author SHA1 Message Date
68b0601a42 chore: replace unnecessarily complex sign extension implementation 2022-10-21 05:12:24 -03:00
603e4b6fdf chore: make use of scoped logging 2022-10-21 05:12:18 -03:00
599a1f2973 chore: remove TODOs and some useless imports 2022-10-21 05:12:18 -03:00
67a785cc22 fix(cpu): force align thumb and arm block data transfers 2022-10-21 05:12:18 -03:00
4eb3842606 feat: pass arm.gba 2022-10-21 05:12:17 -03:00
1ee8b51b2b chore: reimplement ARM LDM/STM 2022-10-21 05:12:17 -03:00
130310e5cc chore: improve arm ldm/stm 2022-10-21 05:12:17 -03:00
e933d7e5c7 fix(cpu): force-align SWP reads and writes 2022-10-21 05:12:17 -03:00
44e8b5b882 fix: force-align ARM STRH reads 2022-10-21 05:12:17 -03:00
28361e8b7d fix: implement the same LDRSH logic as THUMB LDRSH 2022-10-21 05:12:16 -03:00
75921d6413 fix: PC is 12 ahead when it is rd in str and strb 2022-10-21 05:12:16 -03:00
17226d8f75 fix: listen to my past self
By deleting this line I go from test 234 to test 355 in arm.gba
2022-10-21 05:12:16 -03:00
8006ca31e6 chore: remove unnecessary @as calls 2022-10-21 05:12:16 -03:00
271f42cf0e feat: rename ARM and THUMB SWI functions 2022-10-21 05:12:13 -03:00
01e15584da chore: group THUMB and select ARM instructions together (same file) 2022-10-21 05:12:13 -03:00
b4e0682801 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
2022-10-21 05:12:12 -03:00
7dbd2fc556 fix(cpu): account for rn in rlist in block data transfer 2022-10-21 05:12:10 -03:00
85e0924669 feat: implement LDM/STM behaviour when S is set 2022-10-21 05:12:10 -03:00
97919f646d feat(cpu): Pass all LDR/STR ARMwrestler tests 2022-10-21 05:12:10 -03:00
151de2eab4 feat(cpu): implement ARM SWP and SWPB 2022-10-21 05:12:10 -03:00
da681c946e feat(cpu): Implement Multiply Long ARM instructions 2022-10-21 05:12:09 -03:00
443520ecae chore: more detailed panic message 2022-10-21 05:12:09 -03:00
7e6fc44191 feat(cpu): implement SWP 2022-10-21 05:12:08 -03:00
9cb4ebaa7f fix(cpu): perform MUL with u64s, throw away upper 32 bits 2022-10-21 05:12:08 -03:00
e1fec48a0e fix(cpu): properly decode multiply instructions 2022-10-21 05:12:07 -03:00
0778ee8dd7 feat(cpu): implement ARM multiply instructions 2022-10-21 05:12:07 -03:00
8113146b86 chore: dedup code in THUMB instructions 2022-10-21 05:12:05 -03:00
e6625113db chore: refactor and genericize ARM data processing calculations 2022-10-21 05:12:05 -03:00
2643504eb5 chore: relocate barrel_shifter zig file 2022-10-21 05:12:05 -03:00
f7518d1bab feat(cpu): implement format2 THUMB instructions 2022-10-21 05:12:05 -03:00
c4e131b92d chore: binary logging + file logging + DP chanes + fastBoot changes 2022-10-21 05:12:02 -03:00
4bdb85834c feat(cpu): implement SWI 2022-10-21 05:12:02 -03:00
8bb7ea6be6 fix(cpu): interim solution to weird program counter behaviour on illegal tst instruction 2022-10-21 05:12:01 -03:00
60a1f7fa99 chore(cpu): implement behaviour for undefined test instruction 2022-10-21 05:12:01 -03:00
b3b8182f85 fix(cpu): fix PC offset when barrel shifter and bit 4 of DP is set 2022-10-21 05:12:01 -03:00
56e660714c fix(cpu): implement S set + rd == 15 case for data processing 2022-10-21 05:12:01 -03:00
eb632056a2 feat(cpu): implement banked registers 2022-10-21 05:12:01 -03:00
fbc9de0335 fix(cpu): improve MRS and MSR instructions 2022-10-21 05:12:01 -03:00
5c7539cd26 feat(cpu): implement CMN 2022-10-21 05:12:00 -03:00
7c20e5fdb5 fix(barrel_shifter): fix PC being 1 word ahead in barrel shifter 2022-10-21 05:12:00 -03:00
f79e7126ee feat(cpu): Implement RSC 2022-10-21 05:12:00 -03:00
15e92bc6af feat(cpu): implement RSB 2022-10-21 05:12:00 -03:00
47fc96fe00 feat(cpu): implement BIC 2022-10-21 05:12:00 -03:00
4ac5ad42c6 feat(cpu): implement EOR 2022-10-21 05:12:00 -03:00
c93153672f feat(cpu): implement ADD 2022-10-21 05:11:59 -03:00
a46dd448f4 feat(cpu): implement fix for ADC and implement SBC 2022-10-21 05:11:59 -03:00
01f75112ce chore(barrel_shifter): remove panic from ASR 2022-10-21 05:11:59 -03:00
051b98bc02 fix(barrel_shifter): should not modify cpsr when amount == 0 2022-10-21 05:11:59 -03:00
5d0bc1b335 chore(cpu): refactor the barrel shifter once again 2022-10-21 05:11:59 -03:00
43d011538e feat(cpu): implement ADC
ADC interacting w/ the Barrel Shifter is not working though
2022-10-21 05:11:59 -03:00