Rekai Nyangadzayi Musuka
647bd83224
chore(io): rewrite certain error messages
...
We can do this now that we know that it won't be because of any
unimplemented feature in some circumstances
2022-10-29 02:37:54 -03:00
Rekai Nyangadzayi Musuka
c831f67d1a
feat(timer): implemeant all timer i/o reads
2022-10-29 01:37:28 -03:00
Rekai Nyangadzayi Musuka
268961262d
feat(dma): implement all dma i/o reads
2022-10-29 01:30:12 -03:00
Rekai Nyangadzayi Musuka
3e62feacba
feat(ppu): implement all ppu i/o reads
2022-10-29 01:29:27 -03:00
Rekai Nyangadzayi Musuka
371cf4cc12
style(i/o, ppu): refactor ppu i/o
2022-10-28 23:45:54 -03:00
Rekai Nyangadzayi Musuka
10aec67ee0
emu: implement thread sleep in granular steps
2022-10-28 21:58:55 -03:00
Rekai Nyangadzayi Musuka
4eb715a138
doc(emu): properly document + simply constants
2022-10-28 21:57:30 -03:00
Rekai Nyangadzayi Musuka
14b24787ab
style: remove unnecessary imports
2022-10-28 21:56:55 -03:00
Rekai Nyangadzayi Musuka
eb7ffa29f4
fix(apu): pause device on mute instead of writing silence
2022-10-27 09:11:08 -03:00
Rekai Nyangadzayi Musuka
4b8ed3cebb
fix(io): resolve embarrasingly simple regression
...
introduced in 21eddac31e
2022-10-23 04:39:31 -03:00
Rekai Nyangadzayi Musuka
928ce674d9
fix(cpu): fix obscure LDRSH behaviour
2022-10-22 22:12:41 -03:00
Rekai Nyangadzayi Musuka
945dbec013
fix(open-bus): don't rotate result
...
Rotating misaligned reads is the responsibility of the CPU
2022-10-22 21:32:36 -03:00
Rekai Nyangadzayi Musuka
a2868dfe9e
feat(dma): Implement DMA Latch
2022-10-22 20:52:02 -03:00
Rekai Nyangadzayi Musuka
22979d9450
fix(bios): fix regression
...
was reading addr_latch + 8, which is a remnant from when I was faking
the pipeline
2022-10-22 15:33:36 -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
26dba16789
chore(gpio): add missing errdefer
2022-10-17 20:01:50 -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
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
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
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
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
