127 Commits

Author SHA1 Message Date
b8a9aaee86 fix(cpu): resolve issues with unexpected PC value in THUMB 2022-01-29 22:07:36 -04:00
00058f6094 feat(cpu): implement THUMB ldmia stmia 2022-01-29 21:10:14 -04:00
2dde47318c chore: implement THUMB format 4 instructions 2022-01-29 20:42:13 -04:00
ae4023e51c chore: dedup code in THUMB instructions 2022-01-29 20:05:27 -04:00
bce067557f chore: refactor and genericize ARM data processing calculations 2022-01-29 19:40:58 -04:00
e0acabf050 chore: relocate barrel_shifter zig file 2022-01-29 18:52:16 -04:00
599e068c7e feat(cpu): implement format2 THUMB instructions 2022-01-29 18:46:27 -04:00
4ca65caef0 feat(cpu): implement format19 THUMB instructions 2022-01-29 18:25:50 -04:00
44dbdba48c feat(cpu): implement format16 THUMB instructions 2022-01-29 17:44:04 -04:00
d85e0c8d05 feat(cpu): implement format 1 THUMB instructions 2022-01-29 17:29:30 -04:00
cfbd292edc feat(cpu): implement format 6 THUMB instructions 2022-01-29 01:18:41 -04:00
fbc5b309b0 chore: binary logging + file logging + DP chanes + fastBoot changes 2022-01-25 18:18:52 -04:00
997dc1314c feat(cpu): implement SWI 2022-01-25 10:34:21 -04:00
6257418405 fix(cpu): interim solution to weird program counter behaviour on illegal tst instruction 2022-01-25 09:23:32 -04:00
985fefb9f6 chore(cpu): implement behaviour for undefined test instruction 2022-01-25 08:05:42 -04:00
95dd3e3df8 fix(cpu): fix PC offset when barrel shifter and bit 4 of DP is set 2022-01-24 17:52:01 -04:00
702ff288d8 fix(cpu): implement S set + rd == 15 case for data processing 2022-01-19 07:46:49 -04:00
bf36a23722 feat(cpu): implement banked registers 2022-01-19 07:29:49 -04:00
fc5a3460dd fix(cpu): improve MRS and MSR instructions 2022-01-18 20:17:00 -04:00
6177927049 feat(cpu): implement CMN 2022-01-18 15:09:25 -04:00
903b75c7c4 fix(barrel_shifter): fix PC being 1 word ahead in barrel shifter 2022-01-18 15:08:29 -04:00
8d786cbe25 feat(cpu): Implement RSC 2022-01-18 14:46:57 -04:00
212bc9e11d feat(cpu): implement RSB 2022-01-18 14:36:03 -04:00
63a57ac954 feat(cpu): implement BIC 2022-01-18 14:28:47 -04:00
85dae5e1d7 feat(cpu): implement EOR 2022-01-18 14:27:07 -04:00
6189bf0315 feat(cpu): implement ADD 2022-01-18 14:25:29 -04:00
2f3213f693 feat(cpu): implement fix for ADC and implement SBC 2022-01-18 14:20:01 -04:00
a62cd9aa40 chore(barrel_shifter): remove panic from ASR 2022-01-18 14:19:58 -04:00
25c57a4cc7 fix(barrel_shifter): should not modify cpsr when amount == 0 2022-01-18 13:30:41 -04:00
a7a44c4463 chore(cpu): refactor the barrel shifter once again 2022-01-17 15:55:55 -04:00
d4d2fedfbe feat(cpu): implement ADC
ADC interacting w/ the Barrel Shifter is not working though
2022-01-17 14:29:34 -04:00
483e149b32 feat(cpu): implement RRX for Barrel Shifter 2022-01-17 14:19:40 -04:00
85ffdf44f5 feat(cpu): implement SUB in THUMB format 3 2022-01-17 11:36:02 -04:00
9098a55ae3 feat(cpu): implement ARM SUB in data processing 2022-01-17 11:35:41 -04:00
c0d956ea95 feat(cpu): implement MVN 2022-01-17 11:30:59 -04:00
1025500407 chore(cpu): refactor barrel shifter 2022-01-17 11:17:04 -04:00
d05a924420 fix(cpu): use barrel shifter in data processing immediates 2022-01-17 11:02:34 -04:00
2a416fb2c6 feat(cpu): implement format 12 thumb instructions 2022-01-17 10:07:50 -04:00
ea5f0ce552 feat(cpu): implement some already decoded format 3 instructions 2022-01-17 09:29:11 -04:00
e55d2dc323 feat(cpu): implement THUMB format 5 instructions 2022-01-17 09:28:46 -04:00
1915d98bdd feat(cpu): implement like 1 THUMB instruction 2022-01-16 12:46:59 -04:00
0cf052838d chore(cpu): lay groundwork for THUMB instruction decoding and execution 2022-01-14 05:23:16 -04:00
ae37b1218b chore(cpu): refactor ARM functions to make room for THUMB 2022-01-14 04:26:09 -04:00
37bd6758fb fix(cpu): fix imm value calculation in MSR 2022-01-14 04:08:04 -04:00
7f6ab626d9 fix(cpu): resolve off-by-one error when executing LDM 2022-01-14 03:43:03 -04:00
77dba68a0b feat(cpu): implement branch and exchange
If I want to continue with armwrestler, I'll have to implement
THUMB instructions now
2022-01-12 07:20:24 -04:00
7adc7c8802 fix(cpu): make Data Processing instructions r15-aware 2022-01-12 07:20:24 -04:00
229f7c3388 fix(cpu): make LDRH and STRH aware of r15 2022-01-12 07:20:21 -04:00
5812b9713c fix(cpu): account for r15 in LDR and STR instructions 2022-01-12 06:16:59 -04:00
98c5803208 fix(cpu): flip two branches in PSR Transfer execution 2022-01-12 06:16:34 -04:00