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183 Commits

Author SHA1 Message Date
Rekai Nyangadzayi Musuka 0a78587d8e chore: dont allocate not-small ?Sprite array on stack 
use memset like most other allocations in this emu
 2022-12-16 22:16:37 -04:00
Rekai Nyangadzayi Musuka b753ceef8e chore: move FrameBuffer struct to util.zig 2022-12-16 22:16:37 -04:00
Rekai Nyangadzayi Musuka 8963fe205b chore: move OAM, PALRAM and VRAM structs to separate files 2022-12-16 22:16:37 -04:00
Rekai Nyangadzayi Musuka e906506e16 fix: 8-bit writes to WIN PPU registers 
Advance Wars depends on these registers similar to Mario Kart's 8-bit
writes to Affine Background registers:
 2022-12-16 22:16:37 -04:00
Rekai Nyangadzayi Musuka 3195a45e3d chore: refactor window 2022-12-16 22:16:37 -04:00
Rekai Nyangadzayi Musuka 6aad911985 chore: crude background window impl (no affine) 2022-12-16 22:16:37 -04:00
Rekai Nyangadzayi Musuka e3b45ef794 chore: rename function (misspelt until now somehow) 2022-12-16 22:16:37 -04:00
Rekai Nyangadzayi Musuka 8e1a539e70 chore: debug read takes advantage of fastmem 
deduplicate slowmem backup read handler
 2022-12-15 23:18:54 -04:00
Rekai Nyangadzayi Musuka bf95eee3f1 fix(apu): resolve bug in NR10 obscure behaviour 2022-12-05 11:08:04 -04:00
Rekai Nyangadzayi Musuka 26db340077 fix(input): implement atomic for KeyInput 2022-11-30 00:42:20 -04:00
Rekai Nyangadzayi Musuka 20f611b7b5 chore: be more intentional in atomic ordering use 2022-11-30 00:21:02 -04:00
Rekai Nyangadzayi Musuka 4af86e1cb3 style: replace meta.Tuple calls with new tuple syntax 2022-11-29 23:01:06 -04:00
Rekai Nyangadzayi Musuka 46e29245b7 fix(apu): disable APU writes when APU is disabled 2022-11-26 12:20:42 -04:00
Rekai Nyangadzayi Musuka 66db2e6049 Revert "chore: refactor flash impl" 
This reverts commit 96a9ae2ca5.
 2022-11-20 21:46:40 -04:00
Rekai Nyangadzayi Musuka c5cf471912 fix(timer): removing cascade when TIM aleady enabled shouldn't reset counter 2022-11-20 19:13:49 -04:00
Rekai Nyangadzayi Musuka 4ed4f8e143 fix(dma): implement obscure behaviour for DMAs from ROM 2022-11-20 17:49:26 -04:00
Rekai Nyangadzayi Musuka 96a9ae2ca5 chore: refactor flash impl 2022-11-17 10:47:19 -04:00
Rekai Nyangadzayi Musuka 558c03b12b style: changes to cpu.zig 2022-11-16 10:21:40 -04:00
Rekai Nyangadzayi Musuka 7d8fbbb086 fix(bus): resolve off-by-one error 2022-11-14 01:59:43 -04:00
Rekai Nyangadzayi Musuka 5d7cf3a8a2 chore: remove util fn for stdlib equivalent 2022-11-11 13:02:51 -04:00
Rekai Nyangadzayi Musuka 1230aa1e91 fix(cpu): remove miscompilation workaround 2022-11-11 03:56:49 -04:00
Rekai Nyangadzayi Musuka 986bc9448e fix(bus): account for read_table being the first table when freeing 2022-11-03 07:50:12 -03:00
Rekai Nyangadzayi Musuka d34893ba72 fix(bus): fix confusion about which fastmem write table is for which write type 2022-11-02 08:21:59 -03:00
Rekai Nyangadzayi Musuka b8a5fb95c1 fix(io): account for read-only bit in WAITCNT 2022-11-02 08:06:19 -03:00
Rekai Nyangadzayi Musuka 102b2c946b fix(io): respect read-only bits in DISPSTAT 
Superstar Saga now renders correctly
 2022-11-02 07:54:06 -03:00
Rekai Nyangadzayi Musuka 505b1b9608 fix(bus): resolve simple oversights 2022-11-01 09:00:25 -03:00
Rekai Nyangadzayi Musuka 2851c140ea fix(cpu): use LUT for ARM condition codes 2022-11-01 08:29:42 -03:00
Rekai Nyangadzayi Musuka 637d81ce44 chore(bus): only perform one allocation for fastmem tables 2022-11-01 07:04:42 -03:00
Rekai Nyangadzayi Musuka bc52461f0f fix(bus): replace write table with two tables for u32/u8 and u8 writes 2022-11-01 07:00:07 -03:00
Rekai Nyangadzayi Musuka c395c04a6e feat(bus): implement fastmem 
+100 fps in Pokemon Emerald lol
 2022-11-01 06:18:12 -03:00
Rekai Nyangadzayi Musuka af8ec4db5b chore: go through TODOs and FIXMEs 
mainly deleting / rewording those that no longer apply
 2022-10-31 06:17:09 -03:00
Rekai Nyangadzayi Musuka 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
Rekai Nyangadzayi Musuka 5101fbd809 feat(io): pass all suite.gba i/o read tests 2022-10-31 05:22:11 -03:00
Rekai Nyangadzayi Musuka 472457b9f3 chore: make use of comptime control flow when working with tuples 2022-10-31 05:14:20 -03:00
Rekai Nyangadzayi Musuka 2ef4bb7dcc revert(apu): switch from f32 44.1kHz to u16 32.768kHz 2022-10-31 05:14:20 -03:00
Rekai Nyangadzayi Musuka 9a732ea6f8 chore(i/o): ensure interrupt i/o exists 2022-10-31 05:14:20 -03:00
Rekai Nyangadzayi Musuka ca67ca3183 fix(apu): only enable dma sound fifo after manual write 2022-10-30 03:48:12 -03:00
Rekai Nyangadzayi Musuka 47fc49deb6 fix(audio): add asserts where I assume audio format 2022-10-30 03:25:49 -03:00
Rekai Nyangadzayi Musuka 472215b4c2 feat(ppu): implement all i/o writes 2022-10-30 03:11:04 -03:00
Rekai Nyangadzayi Musuka c9a423d094 fix(ppu): resolve mistakes in ppu i/o reads 2022-10-30 02:15:26 -03:00
Rekai Nyangadzayi Musuka 1d163fa56f feat(apu): implement all apu i/o writes 2022-10-30 02:02:23 -03:00
Rekai Nyangadzayi Musuka 13710a3236 feat(timer): implement all timer i/o writes 2022-10-30 01:18:46 -03:00
Rekai Nyangadzayi Musuka 6154585e77 feat(dma): implement all dma i/o writes 2022-10-30 01:04:22 -03:00
Rekai Nyangadzayi Musuka 7debdc490d fix(io): resovle off-by-one errors in i/o register ranges 2022-10-29 05:23:05 -03:00
Rekai Nyangadzayi Musuka 58375795bf fix(ppu): apply proper masks to ppu i/o 
Refactor Window, and bldcnt, bldalpha, bldy
 2022-10-29 05:18:53 -03:00
Rekai Nyangadzayi Musuka f0dca29836 fix(dma): apply proper masks to dma i/o 2022-10-29 04:53:21 -03:00
Rekai Nyangadzayi Musuka c75682dbd4 fix(apu): some invalid i/o registers should read 0x0000 2022-10-29 04:29:44 -03:00
Rekai Nyangadzayi Musuka 36832ba1fb feat(apu): impelement all apu i/o reads 2022-10-29 04:24:06 -03:00
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
Rekai Nyangadzayi Musuka fa3b9c21b9 chore: move Gpio and Clock structs to separate file 2022-09-18 00:37:45 -03:00
Rekai Nyangadzayi Musuka 50adb5fbac feat: add option to force-enable RTC 2022-09-17 20:27:17 -03:00