107 Commits

Author SHA1 Message Date
2851c140ea fix(cpu): use LUT for ARM condition codes 2022-11-01 08:29:42 -03:00
637d81ce44 chore(bus): only perform one allocation for fastmem tables 2022-11-01 07:04:42 -03:00
bc52461f0f fix(bus): replace write table with two tables for u32/u8 and u8 writes 2022-11-01 07:00:07 -03:00
c395c04a6e feat(bus): implement fastmem
+100 fps in Pokemon Emerald lol
2022-11-01 06:18:12 -03:00
af8ec4db5b chore: go through TODOs and FIXMEs
mainly deleting / rewording those that no longer apply
2022-10-31 06:17:09 -03:00
5d47e5d167 fix(io): force-align all i/o reads
Of course, backups being the exception due to flash or sram quirks,
I don't remember lol
2022-10-31 05:50:27 -03:00
5101fbd809 feat(io): pass all suite.gba i/o read tests 2022-10-31 05:22:11 -03:00
472457b9f3 chore: make use of comptime control flow when working with tuples 2022-10-31 05:14:20 -03:00
2ef4bb7dcc revert(apu): switch from f32 44.1kHz to u16 32.768kHz 2022-10-31 05:14:20 -03:00
9a732ea6f8 chore(i/o): ensure interrupt i/o exists 2022-10-31 05:14:20 -03:00
ca67ca3183 fix(apu): only enable dma sound fifo after manual write 2022-10-30 03:48:12 -03:00
47fc49deb6 fix(audio): add asserts where I assume audio format 2022-10-30 03:25:49 -03:00
472215b4c2 feat(ppu): implement all i/o writes 2022-10-30 03:11:04 -03:00
c9a423d094 fix(ppu): resolve mistakes in ppu i/o reads 2022-10-30 02:15:26 -03:00
1d163fa56f feat(apu): implement all apu i/o writes 2022-10-30 02:02:23 -03:00
13710a3236 feat(timer): implement all timer i/o writes 2022-10-30 01:18:46 -03:00
6154585e77 feat(dma): implement all dma i/o writes 2022-10-30 01:04:22 -03:00
7debdc490d fix(io): resovle off-by-one errors in i/o register ranges 2022-10-29 05:23:05 -03:00
58375795bf fix(ppu): apply proper masks to ppu i/o
Refactor Window, and bldcnt, bldalpha, bldy
2022-10-29 05:18:53 -03:00
f0dca29836 fix(dma): apply proper masks to dma i/o 2022-10-29 04:53:21 -03:00
c75682dbd4 fix(apu): some invalid i/o registers should read 0x0000 2022-10-29 04:29:44 -03:00
36832ba1fb feat(apu): impelement all apu i/o reads 2022-10-29 04:24:06 -03:00
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
c831f67d1a feat(timer): implemeant all timer i/o reads 2022-10-29 01:37:28 -03:00
268961262d feat(dma): implement all dma i/o reads 2022-10-29 01:30:12 -03:00
3e62feacba feat(ppu): implement all ppu i/o reads 2022-10-29 01:29:27 -03:00
371cf4cc12 style(i/o, ppu): refactor ppu i/o 2022-10-28 23:45:54 -03:00
10aec67ee0 emu: implement thread sleep in granular steps 2022-10-28 21:58:55 -03:00
4eb715a138 doc(emu): properly document + simply constants 2022-10-28 21:57:30 -03:00
14b24787ab style: remove unnecessary imports 2022-10-28 21:56:55 -03:00
eb7ffa29f4 fix(apu): pause device on mute instead of writing silence 2022-10-27 09:11:08 -03:00
4b8ed3cebb fix(io): resolve embarrasingly simple regression
introduced in 21eddac31ec6839ea51f23b3101282c423a21142
2022-10-23 04:39:31 -03:00
928ce674d9 fix(cpu): fix obscure LDRSH behaviour 2022-10-22 22:12:41 -03:00
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
a2868dfe9e feat(dma): Implement DMA Latch 2022-10-22 20:52:02 -03:00
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
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
26dba16789 chore(gpio): add missing errdefer 2022-10-17 20:01:50 -03:00
7b146ad7ca fix(bios): set addr_latch even if bios is skipped 2022-10-13 00:35:22 -03:00
822eed1f3a fix(bus): make open bus impl aware of CPU pipeline 2022-10-13 00:35:22 -03:00
b37a14900c style(bus): cpu ptr doesn't need to be optional 2022-10-13 00:35:22 -03:00
f5bd20bc2a style: code cleanup 2022-10-13 00:35:22 -03:00
d3514b14f3 fix: resolve timing regressions
make sure to use fetch timings when fetching instructions
2022-10-13 00:35:20 -03:00
06c60dad74 fix: rename Pipline to Pipeline 2022-10-13 00:34:18 -03:00
870e991862 feat: working pipeline implementation 2022-10-13 00:34:18 -03:00
5bb5bdf389 chore: refactor ARM/THUMB data processing instructions 2022-10-13 00:34:18 -03:00
a3996cbc58 fix: don't flush pipeline when reloading CPSR in ARM Data Processing 2022-10-13 00:34:18 -03:00
a948c6f900 chore: don't write to CPSR + swap with SPSR at the same time 2022-10-13 00:34:18 -03:00
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
48b81c8e7a chore: dump pipeline state on cpu panic 2022-10-13 00:33:13 -03:00