Commit Graph

480 Commits

Author SHA1 Message Date
Rekai Nyangadzayi Musuka 3e25a7f595 fix: resolve timing regressions
make sure to use fetch timings when fetching instructions
2022-09-28 17:25:21 -03:00
Rekai Nyangadzayi Musuka e16c2df8d0 fix: rename Pipline to Pipeline 2022-09-28 16:37:40 -03:00
Rekai Nyangadzayi Musuka 14ba0dbca9 feat: working pipeline implementation 2022-09-28 16:11:25 -03:00
Rekai Nyangadzayi Musuka f466ae2ae2 chore: refactor ARM/THUMB data processing instructions 2022-09-28 12:47:44 -03:00
Rekai Nyangadzayi Musuka f616ed29d1 fix: don't flush pipeline when reloading CPSR in ARM Data Processing 2022-09-28 12:47:44 -03:00
Rekai Nyangadzayi Musuka f13b08b527 chore: don't write to CPSR + swap with SPSR at the same time 2022-09-28 10:01:52 -03:00
Rekai Nyangadzayi Musuka 750fdb65ae fix: account for pipeline in obscure bios behaviour 2022-09-26 16:26:45 -03:00
Rekai Nyangadzayi Musuka 05b5081351 chore: update README.md 2022-09-26 16:26:45 -03:00
Rekai Nyangadzayi Musuka be3ce71a96 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
2022-09-26 16:26:45 -03:00
Rekai Nyangadzayi Musuka 8e2022dffd chore: dump pipeline state on cpu panic 2022-09-26 16:26:45 -03:00
Rekai Nyangadzayi Musuka 0fe164db11 fix: reimpl THUMB.5 instructions
pipeline branch now passes arm.gba and thumb.gba again

(TODO: Stop rewriting my commits away)
2022-09-26 16:26:45 -03:00
Rekai Nyangadzayi Musuka 41f10c6c12 fix: impl workaround for stage2 miscompilation 2022-09-26 16:26:45 -03:00
Rekai Nyangadzayi Musuka d5acfb6eb0 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
2022-09-26 16:26:45 -03:00
Rekai Nyangadzayi Musuka 6428be5f22 fix: reimpl handleInterrupt code 2022-09-26 16:26:45 -03:00
Rekai Nyangadzayi Musuka 1d09554ea4 feat: implement basic pipeline
passes arm.gba, thumb.gb and armwrestler, fails in actual games
TODO: run FuzzARM debug specific titles
2022-09-26 16:26:45 -03:00
Rekai Nyangadzayi Musuka 66ad155a76 feat: resolve off-by-{word, halfword} errors when printing debug info 2022-09-26 16:26:45 -03:00
Rekai Nyangadzayi Musuka 1fa855d8b5 feat: reimplement cpu logging 2022-09-26 16:26:45 -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