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586 Commits

Author SHA1 Message Date
Rekai Nyangadzayi Musuka c2cf2d2965 feat: implement Hblank and Vcount Interrupts 
Also implemented unique behaviour when writing to IF
 2022-02-21 14:45:47 -06:00
Rekai Nyangadzayi Musuka e5ab8b51a9 chore: improve Bus log + panic messages 2022-02-19 11:48:43 -05:00
Rekai Nyangadzayi Musuka c767e88e8d chore: improve io.zig 2022-02-19 11:48:17 -05:00
Rekai Nyangadzayi Musuka 9e2e8c3d1a feat: implement mirroring for IWRAM EWRAM, OAM and PALRAM 
Also realized I confused IWRAM and EWRAM. This is also fixed
TODO: Implemnt Mirroring for VRRAM
 2022-02-19 10:08:31 -05:00
Rekai Nyangadzayi Musuka e426f2459e fix: resolve integer overflow in BG0 Drawing 2022-02-19 06:55:30 -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 f6c8d7ca07 chore: stub CPU HALTing 2022-02-17 00:27:34 -04:00
Rekai Nyangadzayi Musuka 07343efdf3 chore: correct logic errors in map size 1 and 3 2022-02-16 23:49:08 -04:00
Rekai Nyangadzayi Musuka 4018f3875b chore: properly write to VOFS and HOFS in 32-bit bus 2022-02-16 23:23:41 -04:00
Rekai Nyangadzayi Musuka 034f2e8d1d feat: implement hofs and vofs on io bus 2022-02-16 04:29:04 -04:00
Rekai Nyangadzayi Musuka d275a4890f feat: implement scrolling 2022-02-16 03:37:25 -04:00
Rekai Nyangadzayi Musuka ce97a52868 feat: add support for multiple BGs in Mode 0 2022-02-16 03:27:06 -04:00
Rekai Nyangadzayi Musuka d2d4667f7b feat: document mode 0 2022-02-16 03:05:19 -04:00
Rekai Nyangadzayi Musuka 5835b509e4 feat: Mode 0 MVP 2022-02-16 02:27:15 -04:00
Rekai Nyangadzayi Musuka 338122ed43 chore: use zig slices for fun 2022-02-13 05:28:56 -04:00
Rekai Nyangadzayi Musuka e5a76a3c02 chore: give DISPCNT DISPSTAT and VCOUNT to PPU struct 2022-02-13 04:28:15 -04:00
Rekai Nyangadzayi Musuka 31fa06ac4a chore: give io read/write functions access to the entire Bus 2022-02-13 04:13:06 -04:00
Rekai Nyangadzayi Musuka ec25a9aae4 feat: implement BG Scrolling Registers 2022-02-13 04:04:10 -04:00
Rekai Nyangadzayi Musuka b238a3e8f3 feat: impelemnt BG0,1,2CNT and IF 2022-02-13 03:23:09 -04:00
Rekai Nyangadzayi Musuka aca7fc9a60 feat: implement OAM 2022-02-13 02:30:02 -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 8ab7a178c1 chore(cpu): reimplement bank switching logic 2022-02-12 04:33:32 -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 f9013cf9db Merge branch 'main' of ssh://musuka.dev:2222/paoda/zba 2022-02-10 23:02:35 -04:00
Rekai Nyangadzayi Musuka eaac49cebb chore: update README 2022-02-10 21:21:34 -04:00
Rekai Nyangadzayi Musuka ee27053db3 chore: remove TODOs and some useless imports 2022-02-06 19:07:23 -04:00
Rekai Nyangadzayi Musuka 7441dd151c fix: improper condition check and initialization of register 2022-02-06 18:41:16 -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 aec189ac6a chore: update SDL.zig 2022-02-05 21:07:15 -04:00
Rekai Nyangadzayi Musuka 0aece06107 chore: dont use std.mem.bytesToValue 
the stdlib accounts for endianness, which isn't something we want.
 2022-02-05 21:05:08 -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 166bc6fc6d chore: specify which compiler this project is built with 2022-02-05 16:28:06 -04:00
Rekai Nyangadzayi Musuka bf4207ba8c chore: reorganize util.zig 2022-02-05 15:55:12 -04:00
Rekai Nyangadzayi Musuka 78080b4682 fix: zero initialize all allocated memory 2022-02-05 15:54:53 -04:00
Rekai Nyangadzayi Musuka 9159270e87 chore: don't commit *.sh files 2022-02-05 15:53:30 -04:00
Rekai Nyangadzayi Musuka 428eff1468 Revert "fix: allow for 32-bit reads to KEYINPUT" 
This reverts commit 3a51707280.
 2022-02-05 14:52:49 -04:00
Rekai Nyangadzayi Musuka 5ec8d4b0a5 fix: resolve decoding mixup in THUMB format 8 instructions 2022-02-05 14:50:34 -04:00