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517 Commits
98fc82c17a ... 407774d798

Author SHA1 Message Date
Rekai Nyangadzayi Musuka 407774d798 chore(gitignore): update .gitignore 2022-10-21 04:40:55 -03:00
Rekai Nyangadzayi Musuka 16f8f4c953 feat: write default config.toml if it doesn't exist 
also resolves panic on missing /zba or /zba/save directory by ensuring
those directories exist as soon as we know the data directory
 2022-10-21 04:39:16 -03:00
Rekai Nyangadzayi Musuka 143ffd95f7 chore: update README 2022-10-21 02:59:43 -03:00
Rekai Nyangadzayi Musuka 250ff25ed7 Merge pull request 'Configure SDL2 to use OpenGL' (#4) from opengl into main 
Reviewed-on: #4
 2022-10-20 01:41:50 +00:00
Rekai Nyangadzayi Musuka eff52ac1bb fix(opengl): properly control whether vsync is enabled 2022-10-17 20:31:42 -03:00
Rekai Nyangadzayi Musuka e60b556f72 chore(ppu): remove BGR555 -> RGBA888 LUT 
LUT probably couldn't fit in CPU cache anyways.

TODO: Consider whether LUTs for separate channels (size 32 * 3 * 3
instead of std.math.maxInt(u15))
 2022-10-17 20:31:42 -03:00
Rekai Nyangadzayi Musuka 3a3e6acc6a chore: replace OpenGL 4.5 bindings with OpenGL 3.3 2022-10-17 20:31:42 -03:00
Rekai Nyangadzayi Musuka 4b4bc7f894 chore: remove unnecessary ptr cast 2022-10-17 20:31:42 -03:00
Rekai Nyangadzayi Musuka 325208d460 feat: implement better Colour Emulation 2022-10-17 20:31:42 -03:00
Rekai Nyangadzayi Musuka f44a1a49fd fix: lower required OpenGL version + resolve offset bug 2022-10-17 20:31:42 -03:00
Rekai Nyangadzayi Musuka 1575f517a9 feat: use opengl 
TODO:
- Texture isn't scaling properly
- I need to reverse the colours in the frag shader
 2022-10-17 20:31:42 -03:00
Rekai Nyangadzayi Musuka 26dba16789 chore(gpio): add missing errdefer 2022-10-17 20:01:50 -03:00
Rekai Nyangadzayi Musuka b133880064 chore(main): report errors slightly better 2022-10-17 18:30:40 -03:00
Rekai Nyangadzayi Musuka 2474daa3ae chore(config): add log message 2022-10-17 17:39:02 -03:00
Rekai Nyangadzayi Musuka fc53a40b3c feat(config): add option to skip BIOS 2022-10-17 17:31:07 -03:00
Rekai Nyangadzayi Musuka 7097e21361 feat(cli): Add option to skip BIOS 2022-10-17 17:25:04 -03:00
Rekai Nyangadzayi Musuka a9fe24b1b4 chore: Update README.md 2022-10-17 17:00:54 -03:00
Rekai Nyangadzayi Musuka f38c840d32 Merge pull request 'Draft: Implement Instruction Pipeline' (#3) from pipeline into main 
Reviewed-on: #3
 2022-10-17 19:42:42 +00:00
Rekai Nyangadzayi Musuka 19e70c39d1 feat(config): add config option to mute ZBA 2022-10-13 00:54:15 -03:00
Rekai Nyangadzayi Musuka 5a72a8e7f3 chore(config): add example config file 2022-10-13 00:46:18 -03:00
Rekai Nyangadzayi Musuka 7b146ad7ca fix(bios): set addr_latch even if bios is skipped 2022-10-13 00:35:22 -03:00
Rekai Nyangadzayi Musuka 822eed1f3a fix(bus): make open bus impl aware of CPU pipeline 2022-10-13 00:35:22 -03:00
Rekai Nyangadzayi Musuka b37a14900c style(bus): cpu ptr doesn't need to be optional 2022-10-13 00:35:22 -03:00
Rekai Nyangadzayi Musuka f5bd20bc2a style: code cleanup 2022-10-13 00:35:22 -03:00
Rekai Nyangadzayi Musuka d3514b14f3 fix: resolve timing regressions 
make sure to use fetch timings when fetching instructions
 2022-10-13 00:35:20 -03:00
Rekai Nyangadzayi Musuka 06c60dad74 fix: rename Pipline to Pipeline 2022-10-13 00:34:18 -03:00
Rekai Nyangadzayi Musuka 870e991862 feat: working pipeline implementation 2022-10-13 00:34:18 -03:00
Rekai Nyangadzayi Musuka 5bb5bdf389 chore: refactor ARM/THUMB data processing instructions 2022-10-13 00:34:18 -03:00
Rekai Nyangadzayi Musuka a3996cbc58 fix: don't flush pipeline when reloading CPSR in ARM Data Processing 2022-10-13 00:34:18 -03:00
Rekai Nyangadzayi Musuka a948c6f900 chore: don't write to CPSR + swap with SPSR at the same time 2022-10-13 00:34:18 -03:00
Rekai Nyangadzayi Musuka 014180cbd0 chore: update README.md 2022-10-13 00:33:13 -03:00
Rekai Nyangadzayi Musuka e4451738b5 fix: advance r15, even when the pipeline is reloaded from the scheduler 
The PC would fall behind whenever an IRQ was called because the pipeline
was reloaded (+8 to PC), however that was never actually done by any code

Now, the PC is always incremented when the pipeline is reloaded
 2022-10-13 00:33:13 -03:00
Rekai Nyangadzayi Musuka 48b81c8e7a chore: dump pipeline state on cpu panic 2022-10-13 00:33:13 -03:00
Rekai Nyangadzayi Musuka 3cf1bf54e9 fix: reimpl THUMB.5 instructions 
pipeline branch now passes arm.gba and thumb.gba again

(TODO: Stop rewriting my commits away)
 2022-10-13 00:33:13 -03:00
Rekai Nyangadzayi Musuka 1f9eeedfe8 fix: impl workaround for stage2 miscompilation 2022-10-13 00:33:13 -03:00
Rekai Nyangadzayi Musuka 72a63eeb98 chore: instantly refill the pipeline on flush 
I believe this to be necessary in order to get hardware interrupts
working.

thumb.gba test 108 fails but I'm committing anyways (despite the
regression) because this is kind of rebase/merge hell and I have
something that at least sort of works rn
 2022-10-13 00:33:13 -03:00
Rekai Nyangadzayi Musuka 2799c3f202 fix: reimpl handleInterrupt code 2022-10-13 00:33:13 -03:00
Rekai Nyangadzayi Musuka b3ada64e64 feat: implement basic pipeline 
passes arm.gba, thumb.gb and armwrestler, fails in actual games
TODO: run FuzzARM debug specific titles
 2022-10-13 00:33:11 -03:00
Rekai Nyangadzayi Musuka 62162ba492 feat: resolve off-by-{word, halfword} errors when printing debug info 2022-10-13 00:31:47 -03:00
Rekai Nyangadzayi Musuka aa100de581 feat: reimplement cpu logging 2022-10-13 00:31:47 -03:00
Rekai Nyangadzayi Musuka 7142831284 Merge pull request 'Add TOML Support' (#2) from toml into main 
Reviewed-on: #2
 2022-10-13 03:30:26 +00:00
Rekai Nyangadzayi Musuka 97f48c730e chore(emu): refactor code 2022-10-13 00:29:51 -03:00
Rekai Nyangadzayi Musuka 293fbd9f55 feat(config): add support for (and read from) TOML config file 2022-10-13 00:29:48 -03:00
Rekai Nyangadzayi Musuka 622f479e07 feat: parse config.toml in data folder 
Also took the chance to rework parts of the logic that determines
ZBA's save path
 2022-10-13 00:27:18 -03:00
Rekai Nyangadzayi Musuka 0204eb6f94 chore: add zig-toml dependency 2022-10-13 00:27:18 -03:00
Rekai Nyangadzayi Musuka 86d2224cfc chore: update dependencies 2022-10-13 00:23:58 -03:00
Rekai Nyangadzayi Musuka 21eddac31e style: improve code quality 2022-10-13 00:23:58 -03:00
Rekai Nyangadzayi Musuka 785135a074 feat: rewrite device ticks 2022-10-13 00:23:58 -03:00
Rekai Nyangadzayi Musuka fd38fd6506 style(scheduler): rename scheduler event handlers 2022-10-13 00:23:58 -03:00
Rekai Nyangadzayi Musuka bcacac64df style: code refactoring 2022-10-13 00:23:58 -03:00
Rekai Nyangadzayi Musuka dc7cad9691 style(apu): split apu.zig into multiple files + refactor 2022-10-13 00:23:58 -03:00
Rekai Nyangadzayi Musuka b5d8a65e69 style(backup): refactor code 2022-10-10 12:01:49 -03:00
Rekai Nyangadzayi Musuka 8028394105 style(flash): move flash code into it's own file 2022-10-10 12:01:49 -03:00
Rekai Nyangadzayi Musuka cb0eb67e4b style(eeprom): move eeprom code to it's own file 2022-10-10 12:00:45 -03:00
Rekai Nyangadzayi Musuka 13f6ee8ec4 style(bus): refactor several hardware abstractions 2022-10-10 11:57:57 -03:00
Rekai Nyangadzayi Musuka c71e954748 chore: SDL2.zig expects target to be set before link() is called 2022-09-25 18:59:55 -03:00
Rekai Nyangadzayi Musuka c697dec716 chore: update dependencies 2022-09-23 07:21:46 -03:00
Rekai Nyangadzayi Musuka 92cfc763c0 chore: move util.zig 2022-09-19 16:07:19 -03:00
Rekai Nyangadzayi Musuka e192c6712f chore: disable audio sync by default 
forgot SDL2 AudioStream doesn't work well for my use-case
 2022-09-18 09:20:01 -03:00
Rekai Nyangadzayi Musuka 3466bf6c0a chore: change default settings 2022-09-18 06:30:39 -03:00
Rekai Nyangadzayi Musuka fbe3de0eb3 chore: reimpl util.escape 
should make use of stdlib when I can
 2022-09-18 06:23:30 -03:00
Rekai Nyangadzayi Musuka 4af144fca2 fix: Detect FRAM ROMs 2022-09-18 06:19:05 -03:00
Rekai Nyangadzayi Musuka 9a8aaba1ab chore: improve util and Gui API 2022-09-18 05:55:15 -03:00
Rekai Nyangadzayi Musuka fa3b9c21b9 chore: move Gpio and Clock structs to separate file 2022-09-18 00:37:45 -03:00
Rekai Nyangadzayi Musuka d3efa432fa Merge pull request 'Implement RTC' (#1) from rtc into main 
Reviewed-on: #1
 2022-09-17 23:36:34 +00:00
Rekai Nyangadzayi Musuka 50adb5fbac feat: add option to force-enable RTC 2022-09-17 20:27:17 -03:00
Rekai Nyangadzayi Musuka 19d78b9292 feat: auto-detect RTC in commercial ROMS 2022-09-17 20:23:49 -03:00
Rekai Nyangadzayi Musuka a2e702c366 fix: account for lateness in RTC scheduler event 2022-09-17 09:07:31 -03:00
Rekai Nyangadzayi Musuka 12c138364d fix: RTC day is 6 bits wide, not 3 2022-09-16 10:59:41 -03:00
Rekai Nyangadzayi Musuka 7783c11fac feat: put RTC Sync on Scheduler 
TODO: Database to see what games have what GPIO devices
 2022-09-16 10:39:02 -03:00
Rekai Nyangadzayi Musuka 3fc3366c8a chore: import datetime library + default time for RTC 2022-09-16 10:39:02 -03:00
Rekai Nyangadzayi Musuka d6b182f245 fix: ignore RTC Time/DateTime writes 
this falls in-line with better emulators
 2022-09-16 10:39:02 -03:00
Rekai Nyangadzayi Musuka 3857c44e68 chore: use Clock.Writer for Command parsing, delete Clock.Command 2022-09-16 10:39:02 -03:00
Rekai Nyangadzayi Musuka 089c5fa025 feat: implement RTC Read/Writes 2022-09-16 10:39:02 -03:00
Rekai Nyangadzayi Musuka c977f3f965 feat: implement force irqs for GPIO/RTC 2022-09-16 10:38:51 -03:00
Rekai Nyangadzayi Musuka 92417025e9 fix: properly resovle stack UAF 2022-09-16 02:10:41 -03:00
Rekai Nyangadzayi Musuka 1c52c0bf91 chore: shorten `orelse @panic` to `.?` 2022-09-16 02:10:41 -03:00
Rekai Nyangadzayi Musuka 617f7f4690 fix: update GpioData extern union 
u4's are no longer supported in extern unions :\
 2022-09-16 02:10:41 -03:00
Rekai Nyangadzayi Musuka 434a0dfac9 tmp: incomplete impl of GPIO + RTC 2022-09-16 02:10:41 -03:00
Rekai Nyangadzayi Musuka 4ec8dab460 chore: Guilty Gear X expects these I/O Registers 2022-09-14 11:38:26 -03:00
Rekai Nyangadzayi Musuka 59c9ff910e feat: implement open bus for unmapped i/o 2022-09-12 23:18:29 -03:00
Rekai Nyangadzayi Musuka 0027d3f8a3 chore: comment open bus impl 2022-09-11 07:38:55 -03:00
Rekai Nyangadzayi Musuka 9f45888910 chore: update dependencies 2022-09-11 06:59:10 -03:00
Rekai Nyangadzayi Musuka bf442d5a40 chore: Update README.md 2022-09-10 07:34:52 -03:00
Rekai Nyangadzayi Musuka 65cfc97f28 feat: reimplement audio sync 
APU will now drop samples if the Audio Queue is already full, therefore
creating a "sped-up" effect when the emulator runs faster than 100%
 2022-09-08 20:38:42 -03:00
Rekai Nyangadzayi Musuka fa862f095a chore: move arm/thumb lut idx functions 2022-09-06 23:58:24 -03:00
Rekai Nyangadzayi Musuka f3c05b6fe6 chore: update dependencies 2022-09-05 22:52:07 -03:00
Rekai Nyangadzayi Musuka 3fb7f2f814 chore: better conform to zig idioms 2022-09-03 18:30:48 -03:00
Rekai Nyangadzayi Musuka 59669ba3a5 chore: rename arm7tdmi variables to just cpu 
Less verbose, specifying arm7tdmi doesn't really do much when there's
no other CPU in the system
 2022-09-03 17:56:37 -03:00
Rekai Nyangadzayi Musuka 6a798d2c9d chore: allocate sprite array on heap 
Each Sprite optional is 10 bytes meaning I'm allocating 1.28Kb on the
stack which isn't necessary.
 2022-08-29 01:07:25 -05:00
Rekai Nyangadzayi Musuka 5f8c6833f4 chore: improve init/deinit methods 2022-08-29 01:07:25 -05:00
Rekai Nyangadzayi Musuka aa52bb5917 chore: reorganize some code 2022-08-26 14:13:49 -05:00
Rekai Nyangadzayi Musuka e57f918856 chore: pass the allocator as an argument more often 
As of right now, I think the only cases where I shouldn't explicitly pass an allocator
are in read/write functions and deinits
 2022-08-26 13:54:38 -05:00
Rekai Nyangadzayi Musuka e5b7441740 fix: resolve use-afer-free in backup.zig 
This worked fine on stage1, and works fine in debug in stage3.
However, stage3 ReleaseSafe would panic due to what I assume must
have been an undefined behaviour optimization.

While I'm happy that I was quickly made aware of the issue thanks to
the safety checks in ReleaseSafe I do wish that this issue showed itself
in Debug, since I *am* using the GPA
 2022-08-26 13:04:09 -05:00
Rekai Nyangadzayi Musuka 2ab8769b7a feat: Get ZBA working on Zig's new stage2/stage3 compiler 2022-08-21 12:28:31 -05:00
Rekai Nyangadzayi Musuka 3c3c0d32dd chore: move window scale const to emu.zig 2022-08-08 11:03:23 +02:00
Rekai Nyangadzayi Musuka 739db99c83 fix: reimpl debug reads w/out throwing away *const Self 2022-08-07 05:11:29 -05:00
Rekai Nyangadzayi Musuka 5a18b1dcc7 chore: update dependencies: 2022-08-06 08:28:30 -05:00
Rekai Nyangadzayi Musuka 2c8616f610 feat: reimplement cpu logging 2022-07-27 14:50:28 -03:00
Rekai Nyangadzayi Musuka 53eec5c3ff chore: don't init bus in Arm7tdmi init 2022-07-27 13:44:24 -03:00
Rekai Nyangadzayi Musuka c397b7069d feat: move arm instr decoding to module 2022-07-27 13:23:29 -03:00
Rekai Nyangadzayi Musuka 9d037fdc3e feat: move thumb instr decoding to module 2022-07-27 13:10:58 -03:00
Rekai Nyangadzayi Musuka 53191b0eeb chore: change directory structure 2022-07-22 21:11:19 -03:00
Rekai Nyangadzayi Musuka c7c4a90948 fix: reimplement halt fast-forwarding 2022-07-21 11:25:49 -03:00
Rekai Nyangadzayi Musuka 03ded099d2 chore: move audio sync, video sync variables 2022-07-21 11:05:49 -03:00
Rekai Nyangadzayi Musuka 5d9a57c7eb chore: update README.md 2022-07-12 18:28:11 -03:00
Rekai Nyangadzayi Musuka 769fad8996 chore: update SDL.zig 2022-07-12 18:11:32 -03:00
Rekai Nyangadzayi Musuka 3b3eb52c48 feat: impl WININ, WINOUT, WIN{N}H and WIN{N}V 2022-06-29 14:56:48 -03:00
Rekai Nyangadzayi Musuka d798aea6ea fix: force align DMA transfers 2022-06-29 04:31:02 -03:00
Rekai Nyangadzayi Musuka 5d37c212e2 fix: resolve bugs in VRAM unpredictable read/writes 2022-06-29 03:59:14 -03:00
Rekai Nyangadzayi Musuka 887bd89668 fix: don't start HDMA in vblank 2022-06-23 05:45:52 -03:00
Rekai Nyangadzayi Musuka 81c669fe64 feat: implement brightness increase/decrease 2022-06-23 04:50:04 -03:00
Rekai Nyangadzayi Musuka 265234ee97 feat: implement object blending 2022-06-23 02:49:56 -03:00
Rekai Nyangadzayi Musuka 02534c5c19 feat: implement background alpha blending 2022-06-19 22:10:56 -03:00
Rekai Nyangadzayi Musuka 5e4fb7b952 feat: implement BLDCNT, BLDALPHA, BLDY 2022-06-19 01:27:14 -03:00
Rekai Nyangadzayi Musuka 7e15e83d38 chore: update README 2022-06-19 00:02:33 -03:00
Rekai Nyangadzayi Musuka c9ea80e03b chore: rename + remove some code 2022-06-18 22:01:17 -03:00
Rekai Nyangadzayi Musuka 4cd722e447 fix: properly fire DMA IRQs 
This resolves Sound DMA Timing issues present in DOOM
 2022-06-18 21:13:12 -03:00
Rekai Nyangadzayi Musuka adfb23fab4 chore: rename Dma.active to Dma.in_progress 2022-06-18 19:15:34 -03:00
Rekai Nyangadzayi Musuka 5bbbdc3469 chore: rewrite info log message 2022-06-18 18:46:40 -03:00
Rekai Nyangadzayi Musuka 47adc0c5ae feat: implement NR10 obscure behaviour 2022-06-18 18:16:29 -03:00
Rekai Nyangadzayi Musuka 601b0b2aae feat: handle all I/O when using Cult-Of-GBA BIOS 2022-06-18 17:50:11 -03:00
Rekai Nyangadzayi Musuka 3becd790cf chore: 32-bit reads for PSG audio 2022-06-18 17:35:52 -03:00
Rekai Nyangadzayi Musuka 460f8308a7 chore: implement more than just 1 cycle per mem access 2022-06-16 22:35:42 -03:00
Rekai Nyangadzayi Musuka cc8c1c1e21 fix: implement register reads for Yoshi's Island 2022-06-16 02:32:31 -03:00
Rekai Nyangadzayi Musuka f5e401a4ee fix: reimplement DMA ticking 2022-06-16 01:46:37 -03:00
Rekai Nyangadzayi Musuka dba8873f76 chore(cpu): add inline fn isHalted() 2022-06-16 00:49:37 -03:00
Rekai Nyangadzayi Musuka db08edbdb9 chore: attempt to debug Rhythm Heaven 2022-06-16 00:03:51 -03:00
Rekai Nyangadzayi Musuka 35dba63b94 fix: impl BG?{X,Y} RefPoint write behaviour outside of Vblank 
With this fix Mode 7-like games now properly render their backgrounds
 2022-06-15 01:34:34 -03:00
Rekai Nyangadzayi Musuka a753912cb5 chore: change priority of some logs 2022-06-15 01:18:45 -03:00
Rekai Nyangadzayi Musuka 7441af9582 chore: mess with debug statements + mask APU I/O reads 2022-06-15 01:08:43 -03:00
Rekai Nyangadzayi Musuka 708f64035f chore: move timer, apu and dma i/o addr matching outside of io.zig 2022-06-15 00:05:36 -03:00
Rekai Nyangadzayi Musuka e4bbd33a49 chore: separate render code for affine sprites 2022-06-04 20:07:20 -03:00
Rekai Nyangadzayi Musuka 25d13722f7 chore: reimplement object rendering 
TODO: implement affine sprites
 2022-06-04 13:55:31 -03:00
Rekai Nyangadzayi Musuka 4eb0d469b3 chore: small changes to normal background drawing code 2022-06-04 10:21:03 -03:00
Rekai Nyangadzayi Musuka ce2271100b feat: implement affine backgrounds 2022-06-04 09:49:34 -03:00
Rekai Nyangadzayi Musuka e226a59a2f chore: stub 8-bit window registers 2022-06-04 09:48:59 -03:00
Rekai Nyangadzayi Musuka 7ff5f3b8e7 chore: remove code that pretends to remove DC offset 2022-06-04 09:47:58 -03:00
Rekai Nyangadzayi Musuka b6f5517c89 fix: replace affine bg register bitfields with signed integers 2022-06-03 19:26:52 -03:00
Rekai Nyangadzayi Musuka 2dc3864dca chore: use stdlib endian-aware integer read/write functions 2022-06-03 13:26:55 -03:00
Rekai Nyangadzayi Musuka deff74d804 chore: update zig version in README.md 2022-05-28 15:28:52 -03:00
Rekai Nyangadzayi Musuka 4f93f3e454 chore: update SDL.zig 2022-05-28 15:25:37 -03:00
Rekai Nyangadzayi Musuka 38afb567b9 chore: misc style improvements 2022-05-27 22:09:15 -03:00
Rekai Nyangadzayi Musuka 4006888629 chore: rename method in FpsTracker 2022-05-27 21:50:16 -03:00
Rekai Nyangadzayi Musuka e7faa9713b chore: update README.md 2022-05-27 21:27:19 -03:00
Rekai Nyangadzayi Musuka 413ff02ad9 fix(backup): resolve banking issue in flash impl 2022-05-27 21:17:50 -03:00
Rekai Nyangadzayi Musuka 517ed7a835 chore: remove awful ptr casts in backup.zig and bios.zig 2022-05-27 20:24:09 -03:00
Rekai Nyangadzayi Musuka d4bc1f2cd0 feat: pass jsmolka's bios.gba 2022-05-27 20:08:09 -03:00
Rekai Nyangadzayi Musuka c6ce810afe fix: play right samples in right channel 2022-05-27 18:47:34 -03:00
Rekai Nyangadzayi Musuka 1170673447 fix: resolve issue when handling event sooner than expected 2022-05-26 17:11:02 -03:00
Rekai Nyangadzayi Musuka c007bf4d8e fix: remove DC offset from audio output 2022-05-26 17:10:10 -03:00
Rekai Nyangadzayi Musuka 697ec46cf1 chore: add debug keybinds for scheduler capacity + event count 2022-05-25 15:13:57 -03:00
Rekai Nyangadzayi Musuka 41ee32b118 perf: don't check scheduler every iteration of runFrame loop 
~20fps gain in Pokemon Emerald, nice
 2022-05-25 14:17:44 -03:00
Rekai Nyangadzayi Musuka 8f5d054195 chore: simplify 4bpp palette code 2022-05-25 10:10:57 -03:00
Rekai Nyangadzayi Musuka c907552864 perf: convert BGR555 to RGBA8888 at compile-time, access w/ lookup table 
Compile speed isn't slowed down by that much + there's a ~20fps gain in
Pokemon emerald, though this isn't anything exact
 2022-05-24 13:55:50 -03:00
Rekai Nyangadzayi Musuka ff3f79801c chore: modify type signature of util.sext 2022-05-23 14:48:52 -03:00
Rekai Nyangadzayi Musuka f130d1991c chore: cleanup main 2022-05-23 12:50:01 -03:00
Rekai Nyangadzayi Musuka 24a8905c29 chore: emu audio sync code to emu.zig 2022-05-23 12:05:57 -03:00
Rekai Nyangadzayi Musuka e70fe73899 chore: redo apu sampling 2022-05-23 11:25:28 -03:00
Rekai Nyangadzayi Musuka a2d2a84850 chore: implement apu u16 reads 2022-05-21 15:09:32 -03:00
Rekai Nyangadzayi Musuka 109561310e fix: clean up frequency timer implementations 2022-05-21 14:21:50 -03:00
Rekai Nyangadzayi Musuka 5164aa961d Revert "fix: resolve off-by-one errors when scheduling freq timer expirations" 
This reverts commit c9b0030b4b.
 2022-05-21 13:46:46 -03:00
Rekai Nyangadzayi Musuka c9b0030b4b fix: resolve off-by-one errors when scheduling freq timer expirations 2022-05-21 13:34:14 -03:00
Rekai Nyangadzayi Musuka af2ad6c924 chore: improve APU accuracy + scheduler refactoring 2022-05-20 16:01:12 -03:00
Rekai Nyangadzayi Musuka e7777737b3 chore: update SDL.zig 2022-05-20 12:34:22 -03:00
Rekai Nyangadzayi Musuka c40cc2ba30 feat: stub Affine BG registers 2022-05-18 15:50:40 -03:00
Rekai Nyangadzayi Musuka 8dddb865cc fix: resolve out-of-bounds error with 8bpp tall / horizontal sprites 
Boot ROM is now enabled by default as well
 2022-05-17 12:16:30 -03:00
Rekai Nyangadzayi Musuka 2e821ab79c chore: improve audio accuracy 2022-05-17 11:28:05 -03:00
Rekai Nyangadzayi Musuka a667269d26 chore: reintroduce thread sleeping + simplify fps counter 2022-05-17 08:55:23 -03:00
Rekai Nyangadzayi Musuka daf977ef06 feat: implement double buffering 2022-05-17 06:53:37 -03:00
Rekai Nyangadzayi Musuka 660c8a2d62 chore: clean up DMA code 2022-05-05 22:36:11 -03:00
Rekai Nyangadzayi Musuka 9d590b099a feat: handle DMA IRQs (maybe?) 2022-05-05 22:04:59 -03:00
Rekai Nyangadzayi Musuka d5443d9c2f chore: contain Timers in a tuple rather than a struct 2022-05-05 20:09:00 -03:00
Rekai Nyangadzayi Musuka f0ce39230b chore: contain DMA Controllers in a tuple rather than a struct 2022-05-05 19:53:12 -03:00
Rekai Nyangadzayi Musuka c0e026b9a8 chore: update git submodules 2022-05-05 18:21:59 -03:00
Rekai Nyangadzayi Musuka 208e88e869 chore: resolve incorrect memory mirror in VRAM 
+ stub GPIO registers on ROM Write
 2022-05-05 16:44:48 -03:00
Rekai Nyangadzayi Musuka 5df023fb41 chore: stub a few I/O registers 2022-05-03 22:41:05 -03:00
Rekai Nyangadzayi Musuka 46ac1542a6 chore: allow 8-bit IO to BG0CNT and BG1CNT 
BG0CNT and and BG1CNT now work properly in mario kart
 2022-05-01 20:41:00 -03:00
Rekai Nyangadzayi Musuka c2f55e0bfb chore: define affine sprite attributes 2022-05-01 19:15:56 -03:00
Rekai Nyangadzayi Musuka 12f9bb51c1 feat: stub mode 1 and 2 2022-05-01 18:53:11 -03:00
Rekai Nyangadzayi Musuka 41558c9103 feat: implement mode 5 
I wonder which obscure game makes heavy use of this mode
 2022-05-01 18:10:52 -03:00
Rekai Nyangadzayi Musuka 68012f84d3 chore: comment ARM MSR code + Audio issues 2022-04-30 22:17:34 -05:00
Rekai Nyangadzayi Musuka 640b1f7c5d chore: pass destoer's cond_invalid test 2022-04-30 20:42:47 -05:00
Rekai Nyangadzayi Musuka f2f4bb205a chore: misc print message improvements 2022-04-29 12:41:05 -05:00
Rekai Nyangadzayi Musuka 6c88a0aec2 chore: improvements to APU accuracy 2022-04-29 12:19:31 -05:00
Rekai Nyangadzayi Musuka 002287ecfe fix: incorrect order-of-operations in ARM BL impl 2022-04-27 23:15:39 -05:00
Rekai Nyangadzayi Musuka a87b46898b chore: special case saving for ROMS without titles 2022-04-27 18:08:44 -05:00
Rekai Nyangadzayi Musuka 417810581b chore: update README 2022-04-26 10:52:56 -05:00
Rekai Nyangadzayi Musuka bc2950916f chore: update most recent zig version 2022-04-26 09:57:26 -05:00
Rekai Nyangadzayi Musuka d9c9105449 feat: pass DenSinH's eeprom-test 2022-04-25 17:20:43 -05:00
Rekai Nyangadzayi Musuka 05a432f1c1 feat: implement EEPROM 2022-04-25 16:23:24 -05:00
Rekai Nyangadzayi Musuka f4a48d536c chore: implement I/O regsister for Minish Cap 2022-04-25 08:01:34 -05:00
Rekai Nyangadzayi Musuka 81db06d2fc chore: change default window scale to 4x 2022-04-24 08:33:28 -04:00
Rekai Nyangadzayi Musuka 1812fb8008 chore: write more debug log messages for unimplemented registers 2022-04-22 22:19:26 -03:00
Rekai Nyangadzayi Musuka 762494453f chore: only sync to audio for now 2022-04-22 20:56:52 -03:00
Rekai Nyangadzayi Musuka e3553bcbd6 feat: panic on unimplemented I/O in ReleaseSafe/Debug but not ReleaseFast 2022-04-22 20:56:52 -03:00
Rekai Nyangadzayi Musuka 9cce4d9859 chore: misc improvements 2022-04-21 10:15:52 -03:00
Rekai Nyangadzayi Musuka 75ba9a4bf9 fix: improper lifetime for *Arm7tdmi ptr in Bus 
*Arm7tdmi ptr is now assigned one scope up so that it lives as least
as long as Bus does
 2022-04-21 07:56:17 -03:00
Rekai Nyangadzayi Musuka 85e8ca9146 feat: implement Noise 
Kirby & The Amazing Mirror crashes only in ReleaseSafe / ReleaseBug.

TODO: Figure out why
 2022-04-21 02:40:02 -03:00
Rekai Nyangadzayi Musuka 2f07c18f0b feat: implement ch3 2022-04-21 00:21:55 -03:00
Rekai Nyangadzayi Musuka ed3d275974 feat: implement ch2 2022-04-20 21:33:46 -03:00
Rekai Nyangadzayi Musuka 0184ec3e5e feat: implement ch1 
TODO: It's really loud
 2022-04-20 20:52:50 -03:00
Rekai Nyangadzayi Musuka 97a689ab55 chore: broken impl of ch1 2022-04-20 09:39:12 -03:00
Rekai Nyangadzayi Musuka c3611a0f00 feat: add audio resampler 
Also implement extremely naive audio sync
 2022-04-20 06:27:06 -03:00
Rekai Nyangadzayi Musuka d270ec711f chore: calculate apu sample rate a bit better 2022-04-20 02:36:32 -03:00
Rekai Nyangadzayi Musuka 172a59aefb feat: schedule audio sampling on scheduler 
DMA sound in games like Pokemon Emerald, Chobits, Love Hina, and Kirby:
Nightmare in Dream Land sound great save for conerns about resampling
 2022-04-14 05:58:32 -03:00
Rekai Nyangadzayi Musuka 92cabd248b chore: improve timer behaviour 2022-04-14 01:58:40 -03:00
Rekai Nyangadzayi Musuka 6b09250a56 chore: move some init code to functions 2022-04-14 00:52:21 -03:00
Rekai Nyangadzayi Musuka f6d746e810 feat: impelemt THUMB open bus 2022-04-14 00:21:49 -03:00
Rekai Nyangadzayi Musuka 9b9b6c0d6f feat: implement ARM read open bus 2022-04-13 23:28:14 -03:00
Rekai Nyangadzayi Musuka 6d5c30ac25 fix: remove accidental rotation in ldrsh instructions 2022-04-13 22:59:32 -03:00
Rekai Nyangadzayi Musuka c1b74d556a chore: move log statement 2022-04-13 21:45:15 -03:00
Rekai Nyangadzayi Musuka dfe94fb931 chore: remove magic numbers 2022-04-13 21:39:35 -03:00
Rekai Nyangadzayi Musuka ffbb31c767 chore: remove unnecessary 32MB allocation 2022-04-13 21:25:41 -03:00
Rekai Nyangadzayi Musuka 714209565b chore: define more I/O read/writes 2022-04-12 00:50:44 -03:00
Rekai Nyangadzayi Musuka 643cd13952 chore: update README 2022-04-11 23:14:44 -03:00
Rekai Nyangadzayi Musuka 2c763e9772 feat: pass jsmolka memory.gba 2022-04-11 22:52:17 -03:00
Rekai Nyangadzayi Musuka ad1f5ea8b8 chore: ignore instead of logging errors for perf reasons 2022-04-10 23:10:06 -03:00
Rekai Nyangadzayi Musuka 76b4d56ca6 feat: Initial Implementation of DMA Audio 2022-04-10 04:50:09 -03:00
Rekai Nyangadzayi Musuka c100d64fcb chore: tick scheduler on memory access 2022-04-09 19:43:27 -03:00
Rekai Nyangadzayi Musuka 5da84aff36 chore: log error on open bus in page 0x00 and 0x01 2022-04-09 18:01:17 -03:00
Rekai Nyangadzayi Musuka 76789aa8bc chore: rewrite I/O read/writes 2022-04-08 17:07:36 -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 a976a5769e fix: pass none.gba and kind of sram.gba from jsmolka test suite 2022-04-08 14:38:35 -03:00
Rekai Nyangadzayi Musuka 6df55c2d86 feat: implement GamePak out-of-bounds reads 2022-04-08 02:34:08 -03:00
Rekai Nyangadzayi Musuka a1008738d2 chore: run zigfmt 2022-04-08 02:13:58 -03:00
Rekai Nyangadzayi Musuka 11a034658a chore: change implementation of rotr 2022-04-08 02:13:41 -03:00
Rekai Nyangadzayi Musuka aac01b0bfe chore: rewrite read/write methods for remainig Bus devices 2022-04-08 02:08:26 -03:00
Rekai Nyangadzayi Musuka 5310c12669 chore: mirror VRAM 2022-04-08 01:10:12 -03:00
Rekai Nyangadzayi Musuka 9b9de11e0c chore: write generic read/write for VRAM 2022-04-08 00:44:52 -03:00
Rekai Nyangadzayi Musuka f8018854be Merge branch 'main' of ssh://musuka.dev:2222/paoda/zba 2022-04-07 17:23:22 -03:00
Rekai Nyangadzayi Musuka fae4b430ab chore: update dependencies 2022-04-07 17:23:07 -03:00
Rekai Nyangadzayi Musuka 1bb3659df6 chore: update README 2022-03-29 18:52:09 -03:00
Rekai Nyangadzayi Musuka 3046e6243a chore: don't assume 1cpi when stepping by a frame 2022-03-29 09:06:26 -03:00
Rekai Nyangadzayi Musuka e127669549 Revert "chore: tick on memory access instead of 1cpi" 
This reverts commit 7f555095f2.
 2022-03-29 08:58:57 -03:00
Rekai Nyangadzayi Musuka 7f555095f2 chore: tick on memory access instead of 1cpi 2022-03-29 08:50:12 -03:00
Rekai Nyangadzayi Musuka 29da7b294e feat: implement Flash backup cartrige kinds 2022-03-28 19:41:22 -03:00
Rekai Nyangadzayi Musuka bf7b533b3c chore: stub more apu I/O addresses 2022-03-28 19:40:47 -03:00
Rekai Nyangadzayi Musuka 37c039fb92 fix: don't create un-needed save file 
If we don't know if we support a game's save type yet, avoid
creating a file for it.
 2022-03-22 15:03:05 -03:00
Rekai Nyangadzayi Musuka 4c172cff70 fix: account for subset of disallowed chars in save file names 2022-03-22 14:55:08 -03:00
Rekai Nyangadzayi Musuka bd54cba8a0 feat: implement SRAM saving and loading 2022-03-22 14:41:18 -03:00
Rekai Nyangadzayi Musuka da4bb17782 chore: properly deallocate OAM buffer 2022-03-22 11:41:17 -03:00
Rekai Nyangadzayi Musuka 5dd69500ca fix: speed percentage in title is now accurate 
We now properly account for full speed being 59.97Hz not, 59Hz or 60Hz
 2022-03-22 10:39:42 -03:00
Rekai Nyangadzayi Musuka eff25a0ab2 chore: make some variables const 2022-03-19 02:00:53 -03:00
Rekai Nyangadzayi Musuka 1901a471e4 feat: minor performance improvements 2022-03-18 09:49:49 -03:00
Rekai Nyangadzayi Musuka 3d61c0dba4 feat: switch from BGR555 to RGBA8888 2022-03-18 07:52:54 -03:00
Rekai Nyangadzayi Musuka 39ab363afa fix: improve perf of instructions w/ rotr 2022-03-16 22:56:37 -03:00
Rekai Nyangadzayi Musuka 1921218c7b fix: improve frame limiting and fps counting 2022-03-16 21:25:32 -03:00
Rekai Nyangadzayi Musuka 40968f0990 fix: implement proper SRAM mirroring and stub Flash 2022-03-15 21:54:55 -03:00
Rekai Nyangadzayi Musuka 04d54ec97a chore: move DMA and Timers from io to bus 2022-03-15 08:25:26 -03:00
Rekai Nyangadzayi Musuka 1fd80c1c23 feat: define APU registers 2022-03-15 08:09:07 -03:00
Rekai Nyangadzayi Musuka 48679fa4ca fix: move code in scheduler to ppu 2022-03-15 08:09:07 -03:00
Rekai Nyangadzayi Musuka bdea19f280 chore: create different types of emuloops 2022-03-15 03:46:33 -03:00
Rekai Nyangadzayi Musuka 5579643d65 fix: resolve relative sprite priority issues 2022-03-15 00:37:29 -03:00
Rekai Nyangadzayi Musuka c6e6b42869 chore: improve accuracy of frame limiter 2022-03-14 20:38:29 -03:00
Rekai Nyangadzayi Musuka 3623362f72 chore: improve accuracy of thread sleep in emu thread 2022-03-14 08:54:48 -03:00
Rekai Nyangadzayi Musuka c538079ad4 feat: implement video sync 2022-03-14 05:16:02 -03:00
Rekai Nyangadzayi Musuka 8e3f48837d chore: organize io switch statements 2022-03-13 07:50:19 -03:00
Rekai Nyangadzayi Musuka 025f295c08 fix: mirror SRAM 
SRAM is mirrored in 64K chunks
TODO: According to GBATEK SRAM chips are 32K and mirrored
 2022-03-13 05:53:32 -03:00
Rekai Nyangadzayi Musuka 017ec407f5 chore: don't panic on unknown bus and io writes/reads 
This will lead to emulation bugs due to devices I've yet to implement but by
doing this a lot of games become playable "by default" such as Doom or
Kirby: Nightmare in Dream Land.

When implementing feature and/or debuggin make sure to set:
panic_on_und_bus and panic_on_und_io to true so that the emu crashes
on unknown reads/writes
 2022-03-13 05:39:09 -03:00
Rekai Nyangadzayi Musuka 4a76611fca feat: implement Timers 2022-03-13 05:35:01 -03:00
Rekai Nyangadzayi Musuka cb10dfbdfd fix: implement sprite coord overflow behaviour 2022-03-12 03:46:41 -04:00
Rekai Nyangadzayi Musuka 0c50ef1e6d fix: resolve issues with sprite mirroring 2022-03-11 23:52:56 -04:00
Rekai Nyangadzayi Musuka 05e67da181 feat: Implement MVP of Mode 0 Sprites 2022-03-11 01:43:47 -04:00
Rekai Nyangadzayi Musuka f1df3d6615 chore: clean up io 2022-03-04 22:55:04 -04:00
Rekai Nyangadzayi Musuka c5b4b51ae0 feat: fix tile flipping issue 2022-03-03 03:08:35 -04:00
Rekai Nyangadzayi Musuka 2e4854c2ff chore: add some type definitions for sprites 2022-03-03 02:10:33 -04:00
Rekai Nyangadzayi Musuka 85f0b13f4a feat: improve DMA Transfer support 2022-03-03 02:10:29 -04:00
Rekai Nyangadzayi Musuka dccd00782b chore(ppu): resolve integer overflow regression 2022-03-02 23:15:10 -04:00
Rekai Nyangadzayi Musuka 3d8c944bcc feat(ppu): implement bg priority and transparency 2022-03-02 01:39:05 -04:00
Rekai Nyangadzayi Musuka 90302d1c52 chore: update README.md 2022-03-01 21:30:29 -04:00
Rekai Nyangadzayi Musuka cb4d3a9a51 chore: replace unnecessarily complex sign extension implementation 2022-02-28 20:38:50 -04:00
Rekai Nyangadzayi Musuka ddb68a7952 feat: pass beeg yoshi 2022-02-28 18:24:24 -04:00
Rekai Nyangadzayi Musuka 97de5d1a96 fix: palette id is a u16 not a u8 2022-02-28 17:32:10 -04:00
Rekai Nyangadzayi Musuka d6ef53fd67 feat: DMA Transfer MVP 2022-02-28 12:34:00 -06:00
Rekai Nyangadzayi Musuka b65f833b28 feat(ppu): implement transparency + backdrop in mode 0 2022-02-26 18:33:16 -06:00
Rekai Nyangadzayi Musuka ac0486be1b chore(io): replace some bitfields with enums 2022-02-24 17:20:23 -06:00
Rekai Nyangadzayi Musuka 441ebc38c7 fix: better emulate behaviour of IO reads 2022-02-24 17:20:20 -06:00
Rekai Nyangadzayi Musuka be2dfb379a chore: document select unimplmented I/O registers 
These registers are written to / read from Kirby: Nightmare in Dream Land
 2022-02-22 17:14:30 -06:00
Rekai Nyangadzayi Musuka bc66be6c06 feat: impelement a barebones SRAM 2022-02-22 17:14:26 -06:00
Rekai Nyangadzayi Musuka 5368ff912d feat: pass retAddr.gba 2022-02-21 15:34:46 -06:00
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
Rekai Nyangadzayi Musuka 3a51707280 fix: allow for 32-bit reads to KEYINPUT 2022-02-05 13:47:05 -04:00
Rekai Nyangadzayi Musuka b4d20fb264 chore: refactor ARMv4 decoding 2022-02-05 13:46:55 -04:00
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
Rekai Nyangadzayi Musuka bce067557f chore: refactor and genericize ARM data processing calculations 2022-01-29 19:40:58 -04:00
Rekai Nyangadzayi Musuka e0acabf050 chore: relocate barrel_shifter zig file 2022-01-29 18:52:16 -04:00
Rekai Nyangadzayi Musuka 599e068c7e feat(cpu): implement format2 THUMB instructions 2022-01-29 18:46:27 -04:00
Rekai Nyangadzayi Musuka 4ca65caef0 feat(cpu): implement format19 THUMB instructions 2022-01-29 18:25:50 -04:00
Rekai Nyangadzayi Musuka 0c49bf2288 chore: account for THUMB BL instruction when mimicking mGBA logs 2022-01-29 18:14:00 -04:00
Rekai Nyangadzayi Musuka 44dbdba48c feat(cpu): implement format16 THUMB instructions 2022-01-29 17:44:04 -04:00
Rekai Nyangadzayi Musuka d85e0c8d05 feat(cpu): implement format 1 THUMB instructions 2022-01-29 17:29:30 -04:00
Rekai Nyangadzayi Musuka 995633e9e8 fix: dont close file handle early 2022-01-29 01:18:45 -04:00
Rekai Nyangadzayi Musuka cfbd292edc feat(cpu): implement format 6 THUMB instructions 2022-01-29 01:18:41 -04:00
Rekai Nyangadzayi Musuka 95efb3f35d chore: rename title 2022-01-28 23:27:03 -04:00
Rekai Nyangadzayi Musuka 6a6dccf4d8 chore: refactor GBA Display Timings 
This change should reflect that the Hblank bit of DISPSTAT is toggled on all scanlines
while also ensuring that the Vblank bit is set on all Vblank scanlines
 2022-01-28 22:58:19 -04:00
Rekai Nyangadzayi Musuka ad1db4dc2e chore: move a single statement lol 2022-01-28 22:57:48 -04:00
Rekai Nyangadzayi Musuka 19359f7ee4 chore: mark indexing methods as inline 2022-01-28 17:11:29 -04:00
Rekai Nyangadzayi Musuka 24f0922f86 feat: create emulator thread 2022-01-28 16:33:38 -04:00
Rekai Nyangadzayi Musuka b1cc985230 chore: disable logging by default 2022-01-25 18:20:30 -04:00
Rekai Nyangadzayi Musuka e5c8f0ce07 chore: revert fastboot changes 2022-01-25 18:20:01 -04:00
Rekai Nyangadzayi Musuka fbc5b309b0 chore: binary logging + file logging + DP chanes + fastBoot changes 2022-01-25 18:18:52 -04:00
Rekai Nyangadzayi Musuka 899a9ead76 chore: ignore .bin files 2022-01-25 12:58:25 -04:00
Rekai Nyangadzayi Musuka 540fbf739a chore: rename skipBios to fastBoot 2022-01-25 11:15:17 -04:00
Rekai Nyangadzayi Musuka 0546b1c308 chore: set correct values for select banked registers on fast boot 2022-01-25 11:14:15 -04:00
Rekai Nyangadzayi Musuka 997dc1314c feat(cpu): implement SWI 2022-01-25 10:34:21 -04:00
Rekai Nyangadzayi Musuka 1456d0f317 chore(bios): allow reading from BIOS 2022-01-25 10:32:28 -04:00
Rekai Nyangadzayi Musuka 6257418405 fix(cpu): interim solution to weird program counter behaviour on illegal tst instruction 2022-01-25 09:23:32 -04:00
Rekai Nyangadzayi Musuka 985fefb9f6 chore(cpu): implement behaviour for undefined test instruction 2022-01-25 08:05:42 -04:00
Rekai Nyangadzayi Musuka 95dd3e3df8 fix(cpu): fix PC offset when barrel shifter and bit 4 of DP is set 2022-01-24 17:52:01 -04:00
Rekai Nyangadzayi Musuka 038c0a9283 chore: remove reccomended extension 2022-01-23 23:13:16 -04:00
Rekai Nyangadzayi Musuka 702ff288d8 fix(cpu): implement S set + rd == 15 case for data processing 2022-01-19 07:46:49 -04:00
Rekai Nyangadzayi Musuka bf36a23722 feat(cpu): implement banked registers 2022-01-19 07:29:49 -04:00
Rekai Nyangadzayi Musuka fc5a3460dd fix(cpu): improve MRS and MSR instructions 2022-01-18 20:17:00 -04:00
Rekai Nyangadzayi Musuka 6177927049 feat(cpu): implement CMN 2022-01-18 15:09:25 -04:00
Rekai Nyangadzayi Musuka 903b75c7c4 fix(barrel_shifter): fix PC being 1 word ahead in barrel shifter 2022-01-18 15:08:29 -04:00
Rekai Nyangadzayi Musuka 8d786cbe25 feat(cpu): Implement RSC 2022-01-18 14:46:57 -04:00
Rekai Nyangadzayi Musuka 212bc9e11d feat(cpu): implement RSB 2022-01-18 14:36:03 -04:00
Rekai Nyangadzayi Musuka 63a57ac954 feat(cpu): implement BIC 2022-01-18 14:28:47 -04:00
Rekai Nyangadzayi Musuka 85dae5e1d7 feat(cpu): implement EOR 2022-01-18 14:27:07 -04:00
Rekai Nyangadzayi Musuka 6189bf0315 feat(cpu): implement ADD 2022-01-18 14:25:29 -04:00
Rekai Nyangadzayi Musuka 2f3213f693 feat(cpu): implement fix for ADC and implement SBC 2022-01-18 14:20:01 -04:00
Rekai Nyangadzayi Musuka a62cd9aa40 chore(barrel_shifter): remove panic from ASR 2022-01-18 14:19:58 -04:00
Rekai Nyangadzayi Musuka 25c57a4cc7 fix(barrel_shifter): should not modify cpsr when amount == 0 2022-01-18 13:30:41 -04:00
Rekai Nyangadzayi Musuka a7a44c4463 chore(cpu): refactor the barrel shifter once again 2022-01-17 15:55:55 -04:00
Rekai Nyangadzayi Musuka d4d2fedfbe feat(cpu): implement ADC 
ADC interacting w/ the Barrel Shifter is not working though
 2022-01-17 14:29:34 -04:00
Rekai Nyangadzayi Musuka 483e149b32 feat(cpu): implement RRX for Barrel Shifter 2022-01-17 14:19:40 -04:00
Rekai Nyangadzayi Musuka 85ffdf44f5 feat(cpu): implement SUB in THUMB format 3 2022-01-17 11:36:02 -04:00
Rekai Nyangadzayi Musuka 9098a55ae3 feat(cpu): implement ARM SUB in data processing 2022-01-17 11:35:41 -04:00
Rekai Nyangadzayi Musuka c0d956ea95 feat(cpu): implement MVN 2022-01-17 11:30:59 -04:00
Rekai Nyangadzayi Musuka 1025500407 chore(cpu): refactor barrel shifter 2022-01-17 11:17:04 -04:00
Rekai Nyangadzayi Musuka d05a924420 fix(cpu): use barrel shifter in data processing immediates 2022-01-17 11:02:34 -04:00
Rekai Nyangadzayi Musuka 2a416fb2c6 feat(cpu): implement format 12 thumb instructions 2022-01-17 10:07:50 -04:00
Rekai Nyangadzayi Musuka ea5f0ce552 feat(cpu): implement some already decoded format 3 instructions 2022-01-17 09:29:11 -04:00
Rekai Nyangadzayi Musuka e55d2dc323 feat(cpu): implement THUMB format 5 instructions 2022-01-17 09:28:46 -04:00
Rekai Nyangadzayi Musuka 3037407ebe chore: mgba log now supports printing THUMB instructions 2022-01-17 07:18:44 -04:00
Rekai Nyangadzayi Musuka 1915d98bdd feat(cpu): implement like 1 THUMB instruction 2022-01-16 12:46:59 -04:00
Rekai Nyangadzayi Musuka 4606a1ab25 chore: distinguish between undefined ARM and THUMB instr 2022-01-14 05:30:32 -04:00
Rekai Nyangadzayi Musuka 0cf052838d chore(cpu): lay groundwork for THUMB instruction decoding and execution 2022-01-14 05:23:16 -04:00
Rekai Nyangadzayi Musuka ae37b1218b chore(cpu): refactor ARM functions to make room for THUMB 2022-01-14 04:26:09 -04:00
Rekai Nyangadzayi Musuka 070322064d fix(cpu): fix conditions for GT cond 2022-01-14 04:19:54 -04:00
Rekai Nyangadzayi Musuka 37bd6758fb fix(cpu): fix imm value calculation in MSR 2022-01-14 04:08:04 -04:00
Rekai Nyangadzayi Musuka 7f6ab626d9 fix(cpu): resolve off-by-one error when executing LDM 2022-01-14 03:43:03 -04:00
Rekai Nyangadzayi Musuka 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
Rekai Nyangadzayi Musuka 7adc7c8802 fix(cpu): make Data Processing instructions r15-aware 2022-01-12 07:20:24 -04:00
Rekai Nyangadzayi Musuka 229f7c3388 fix(cpu): make LDRH and STRH aware of r15 2022-01-12 07:20:21 -04:00
Rekai Nyangadzayi Musuka 5812b9713c fix(cpu): account for r15 in LDR and STR instructions 2022-01-12 06:16:59 -04:00
Rekai Nyangadzayi Musuka 98c5803208 fix(cpu): flip two branches in PSR Transfer execution 2022-01-12 06:16:34 -04:00
Rekai Nyangadzayi Musuka 74abd3df4d feat(cpu): implement MSR and MRS 2022-01-12 04:48:57 -04:00
Rekai Nyangadzayi Musuka 7531af7f2b feat(cpu): stub PSR Transfer instructions 2022-01-12 03:40:51 -04:00
Rekai Nyangadzayi Musuka 1c173eb4b8 chore(io): implement IE and IME 2022-01-12 02:19:26 -04:00
Rekai Nyangadzayi Musuka 769c67b9d4 chore: remove some magic constants 2022-01-12 00:46:20 -04:00
Rekai Nyangadzayi Musuka 3596caf106 Merge branch 'main' of ssh://musuka.dev:2222/paoda/zba 2022-01-11 02:36:37 -04:00
Rekai Nyangadzayi Musuka 3be084cb82 chore: ignores for building on windows 2022-01-11 01:42:26 -04:00
Rekai Nyangadzayi Musuka c1be53bcb2 fix(bus): remove accidental recursion 2022-01-10 21:25:45 -04:00
Rekai Nyangadzayi Musuka 072a66cfdb fix(cpu): write results of ORR to destination register 2022-01-10 10:56:41 -04:00
Rekai Nyangadzayi Musuka ed3bdd90fb feat(cpu): implement TEQ 2022-01-10 08:09:02 -04:00
Rekai Nyangadzayi Musuka e9c1c94cae feat(cpu): Implement ORR 2022-01-10 08:06:00 -04:00
Rekai Nyangadzayi Musuka 0f08ad05be feat(bus): implement IWRAM and EWRAM 2022-01-10 07:59:21 -04:00
Rekai Nyangadzayi Musuka fd5006b29d fix(ppu): properly access Mode 4 palette 2022-01-10 07:23:54 -04:00
Rekai Nyangadzayi Musuka 22b95b2a74 feat(cpu): refactor LDM/STM 2022-01-10 06:51:32 -04:00
Rekai Nyangadzayi Musuka 7d79a0bee2 feat(cpu): implement LDM/STM 2022-01-10 06:27:36 -04:00
Rekai Nyangadzayi Musuka 6c0651ca08 chore(io): DISPSTAT bits 3 and 4 better match GBATEK documentation 2022-01-10 06:26:42 -04:00
Rekai Nyangadzayi Musuka 0d8c5e6882 fix(cpu): fix off-by-word bug in BL 2022-01-10 06:26:02 -04:00
Rekai Nyangadzayi Musuka 89a8fe403b feat(bus): have VCOUNT be addressable on the bus 2022-01-10 03:35:28 -04:00
Rekai Nyangadzayi Musuka 7c5d2d2389 feat(ppu): implement Mode 4 
Implementation is not tested. Pending on LDM and STM so that I can
run beeg.gba
 2022-01-10 03:35:24 -04:00
Rekai Nyangadzayi Musuka 2467b94dbd chore(io): rename some io bitfield fields 2022-01-10 02:13:25 -04:00
Rekai Nyangadzayi Musuka 0d4c850218 chore: remove premature inlines 2022-01-10 01:24:14 -04:00
Rekai Nyangadzayi Musuka bbe2ecfa53 chore: add FPS counter 2022-01-10 01:22:55 -04:00
Rekai Nyangadzayi Musuka c54145ce3c chore: improve code clarity 2022-01-09 23:34:33 -04:00
Rekai Nyangadzayi Musuka ead6d1ce49 feat(ppu): improve timings + implement BG mode 3 bitmap 2022-01-09 22:16:34 -04:00
Rekai Nyangadzayi Musuka 581285a434 fix: allocate framebuf on heap 2022-01-08 20:30:57 -04:00
Rekai Nyangadzayi Musuka 0d203543ca chore: add code for heap alloc of white texture 2022-01-08 18:52:11 -04:00
Rekai Nyangadzayi Musuka eb6c00f0ac chore(gui): switch from RGBA8888 to BGR5555 to match BG Mode 3 2022-01-08 04:54:39 -04:00
Rekai Nyangadzayi Musuka da7f21f47e feat: draw white texture using SDL2 2022-01-07 22:46:17 -04:00
Rekai Nyangadzayi Musuka 8fb666624f fix(ppu): deallocate palette RAM on cleanup 2022-01-07 22:27:08 -04:00
Rekai Nyangadzayi Musuka 568c374131 chore: code cleanup 2022-01-07 20:00:42 -04:00
Rekai Nyangadzayi Musuka 910745f442 chore(bus): refactor bus.zig 2022-01-07 19:49:58 -04:00
Rekai Nyangadzayi Musuka f8c6af3247 chore: refactor instruction exec code 2022-01-07 19:44:48 -04:00
Rekai Nyangadzayi Musuka a407671de2 chore(io): alias @This() to Self in io.zig 2022-01-07 19:34:54 -04:00
Rekai Nyangadzayi Musuka e9ec124e33 chore: refactor bios.zig and pak.zig 2022-01-07 19:33:49 -04:00
Rekai Nyangadzayi Musuka 9f64804763 fix: by convention deinit() should not take pointers to self 2022-01-07 19:16:23 -04:00
Rekai Nyangadzayi Musuka c6123d8a6d feat: implement PPU Timings in Scheduler 2022-01-05 21:18:33 -04:00
Rekai Nyangadzayi Musuka f709458638 feat(sched): add HBlank and VBlank events to the scheduler 2022-01-05 17:34:59 -05:00
Rekai Nyangadzayi Musuka 5037b8f0cc feat: implement S (when rd != 15) for several data processing instructions 2022-01-05 15:45:52 -05:00
Rekai Nyangadzayi Musuka 28a70d0112 feat: implement dedicated Barrel Shifter SHL and SHR 2022-01-05 13:58:11 -05:00
Rekai Nyangadzayi Musuka 7473ffedc7 chore: stub TST 2022-01-04 04:08:02 -06:00
Rekai Nyangadzayi Musuka 172f3e8efe chore: comment-out logging by default 2022-01-04 03:58:11 -06:00
Rekai Nyangadzayi Musuka 28bb410dfd fix(cpu): improve LDR/STR write-back logic 2022-01-04 03:55:41 -06:00
Rekai Nyangadzayi Musuka 5ea888f68c feat(bus): implement Palette RAM and DISPSTAT 2022-01-04 03:29:56 -06:00
Rekai Nyangadzayi Musuka 8b9a80b279 fix(bus): restrict Game ROM and VRAM to a 16-bit bus 2022-01-04 03:08:12 -06:00
Rekai Nyangadzayi Musuka ed9c1413b1 fix(cpu): properly implement SUB/CMP CSPSR carry bit condition 2022-01-04 03:08:08 -06:00
Rekai Nyangadzayi Musuka 8cabcd8901 fix(cpu): resolve reversed if statement + write back on W = 0 2022-01-04 01:57:37 -06:00
Rekai Nyangadzayi Musuka 8d8cedea59 chore: add mgba compatible (minus disasm) log function 2022-01-04 01:11:53 -06:00
Rekai Nyangadzayi Musuka 0f827fca96 chore: rename CPSR u32 from val to raw 2022-01-03 22:25:11 -06:00
Rekai Nyangadzayi Musuka 1fefd4de5c chore: remove print statements 2022-01-03 21:30:08 -06:00
Rekai Nyangadzayi Musuka 3aa680ab8c chore: remove all memory leaks 2022-01-03 20:08:55 -06:00
Rekai Nyangadzayi Musuka 8257a3899a feat(ppu): implement VRAM 2022-01-03 19:52:10 -06:00
Rekai Nyangadzayi Musuka 1d4ba2e2b3 fix(emu): prevent infinite loop when advancing scheduler 2022-01-03 19:51:55 -06:00
Rekai Nyangadzayi Musuka c9f0e1632c fix(io): fix DISPCNT is at wrong IO address 2022-01-03 17:49:15 -06:00
Rekai Nyangadzayi Musuka 44d52d8137 feat(cpu): properly implement STR STRH and STRB 2022-01-03 17:48:43 -06:00
Rekai Nyangadzayi Musuka dee0e113d8 feat(cpu): implement skipBios method 2022-01-02 14:58:39 -06:00
Rekai Nyangadzayi Musuka eb37d73cb2 chore: panic on read from BIOS 
GBA Bios requires a lot of implemented features, so we're ignoring it
for now
 2022-01-02 14:57:59 -06:00
Rekai Nyangadzayi Musuka 1c42d1795a feat(bus): add Io Struct 
Also, add more information to all panic messages
 2022-01-02 14:40:49 -06:00
Rekai Nyangadzayi Musuka 01d6399dfb chore: rename consturctors to fit convention 2022-01-02 13:58:57 -06:00
Rekai Nyangadzayi Musuka f09f814dc3 chore: move bitfield library to lib director 
I'd presonally prefer to use a git submodule here but It doesn't quite
seem like git submodules are possible for individual files. I'll have to
check with FlorenceOS every once and a while to ensure that there are no
lingering soundness issues with the library.

Thanks to @N00byEdge for this wonderful library!
 2022-01-02 13:19:09 -06:00
Rekai Nyangadzayi Musuka de9045fba3 chore: use bitfield library 2022-01-02 13:01:11 -06:00
Rekai Nyangadzayi Musuka e144261e07 feat(bus): emu is now able to read from user-provided BIOS 2022-01-02 03:16:03 -06:00
Rekai Nyangadzayi Musuka 65c3dd722c feat(bus): implement Gameboy Advance MMIO 2022-01-02 02:36:06 -06:00
Rekai Nyangadzayi Musuka b63eb2dabc feat: implement ROM CLI argument 2022-01-01 23:37:21 -06:00
Rekai Nyangadzayi Musuka 52e367d24a fix(cpu): purposely overflow when calculating PC during branch 2022-01-01 21:57:52 -06:00
Rekai Nyangadzayi Musuka cc7e42efd8 feat(cpu): implement condition field behaviour 2022-01-01 21:56:58 -06:00
Rekai Nyangadzayi Musuka c40a1af534 chore: conform to zig style guides 2022-01-01 21:08:47 -06:00
Rekai Nyangadzayi Musuka f2cc0721c7 chore: run zig fmt 2022-01-01 03:42:20 -06:00
Rekai Nyangadzayi Musuka 92a06e49c3 chore(cpu): iron out some false assumptions 2022-01-01 03:41:50 -06:00
Rekai Nyangadzayi Musuka c660ca8922 feat: implement LDR STR 2021-12-29 17:16:32 -06:00
Rekai Nyangadzayi Musuka 7cc3f40a85 chore: run zig fmt 2021-12-29 15:13:50 -06:00
Rekai Nyangadzayi Musuka ff7bf4eaa7 chore: add reccomended vscode extensions 2021-12-29 15:11:30 -06:00
1 changed files with 3 additions and 3 deletions
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example.toml
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@ -1,7 +1,7 @@
[Host]
# Using nearest-neighbour scaling, how many times the native resolution
# of the game bow should the screen be?
win_scale = 3
win_scale = 4
# Enable VSYNC on the UI thread
vsync = true
# Mute ZBA
@ -9,9 +9,9 @@ mute = false
[Guest]
# Sync Emulation to Audio
audio_sync = true
audio_sync = false
# Sync Emulation to Video
video_sync = true
video_sync = false
# Force RTC support
force_rtc = false
# Skip BIOS