71 Commits

Author SHA1 Message Date
203af4c471 chore: 32-bit reads for PSG audio 2022-10-21 05:12:50 -03:00
e8cc0dfabb fix: implement register reads for Yoshi's Island 2022-10-21 05:12:50 -03:00
42c6b21124 fix: impl BG?{X,Y} RefPoint write behaviour outside of Vblank
With this fix Mode 7-like games now properly render their backgrounds
2022-10-21 05:12:49 -03:00
eeea8a6327 chore: mess with debug statements + mask APU I/O reads 2022-10-21 05:12:49 -03:00
0a5df26c31 chore: move timer, apu and dma i/o addr matching outside of io.zig 2022-10-21 05:12:49 -03:00
b18f488b01 chore: small changes to normal background drawing code 2022-10-21 05:12:48 -03:00
e2533dedeb chore: stub 8-bit window registers 2022-10-21 05:12:48 -03:00
02fee16561 fix: replace affine bg register bitfields with signed integers 2022-10-21 05:12:48 -03:00
89d8c08cd1 chore: implement apu u16 reads 2022-10-21 05:12:44 -03:00
29ee225c1f feat: stub Affine BG registers 2022-10-21 05:12:43 -03:00
242bf08cf2 chore: improve audio accuracy 2022-10-21 05:12:42 -03:00
5d5d3827fb chore: contain Timers in a tuple rather than a struct 2022-10-21 05:12:42 -03:00
8826242bf3 chore: contain DMA Controllers in a tuple rather than a struct 2022-10-21 05:12:41 -03:00
2c0d2b64a2 chore: stub a few I/O registers 2022-10-21 05:12:41 -03:00
1750c0a26e chore: allow 8-bit IO to BG0CNT and BG1CNT
BG0CNT and and BG1CNT now work properly in mario kart
2022-10-21 05:12:41 -03:00
896ae0935a chore: improvements to APU accuracy 2022-10-21 05:12:39 -03:00
084d4b28dd chore: implement I/O regsister for Minish Cap 2022-10-21 05:12:38 -03:00
b827ba3a1c chore: write more debug log messages for unimplemented registers 2022-10-21 05:12:38 -03:00
7a670c6ed9 feat: panic on unimplemented I/O in ReleaseSafe/Debug but not ReleaseFast 2022-10-21 05:12:38 -03:00
e690f88cda chore: misc improvements 2022-10-21 05:12:37 -03:00
f074b703b3 feat: implement Noise
Kirby & The Amazing Mirror crashes only in ReleaseSafe / ReleaseBug.

TODO: Figure out why
2022-10-21 05:12:37 -03:00
f8159645e0 feat: implement ch3 2022-10-21 05:12:37 -03:00
cccb83a926 feat: implement ch2 2022-10-21 05:12:37 -03:00
af8fe66c43 feat: implement ch1
TODO: It's really loud
2022-10-21 05:12:36 -03:00
af1887e0a6 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
2022-10-21 05:12:36 -03:00
14bb2f6fbe chore: improve timer behaviour 2022-10-21 05:12:36 -03:00
05c1274ec1 chore: define more I/O read/writes 2022-10-21 05:12:34 -03:00
f039c891c7 feat: Initial Implementation of DMA Audio 2022-10-21 05:12:33 -03:00
d4aac22e34 chore: rewrite I/O read/writes 2022-10-21 05:12:33 -03:00
b6d2084c96 chore: run zigfmt 2022-10-21 05:12:32 -03:00
f12800f2d0 chore: stub more apu I/O addresses 2022-10-21 05:12:30 -03:00
2d16e4a4e6 chore: move DMA and Timers from io to bus 2022-10-21 05:12:28 -03:00
bb9dc45e0c feat: define APU registers 2022-10-21 05:12:27 -03:00
a768d28e7c chore: organize io switch statements 2022-10-21 05:12:26 -03:00
61d6288fec 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
2022-10-21 05:12:26 -03:00
e3e45cd129 feat: implement Timers 2022-10-21 05:12:26 -03:00
d54e593276 chore: clean up io 2022-10-21 05:12:25 -03:00
9455ffe837 feat: pass beeg yoshi 2022-10-21 05:12:24 -03:00
02572dd15c feat: DMA Transfer MVP 2022-10-21 05:12:23 -03:00
4885a86833 chore(io): replace some bitfields with enums 2022-10-21 05:12:23 -03:00
fd9ffb20b4 fix: better emulate behaviour of IO reads 2022-10-21 05:12:23 -03:00
56ef2b077a chore: document select unimplmented I/O registers
These registers are written to / read from Kirby: Nightmare in Dream Land
2022-10-21 05:12:23 -03:00
d30a4d7ee5 feat: implement Hblank and Vcount Interrupts
Also implemented unique behaviour when writing to IF
2022-10-21 05:12:22 -03:00
0f74e4fcf9 chore: improve io.zig 2022-10-21 05:12:22 -03:00
acf1a10f91 chore: don't panic on 32-bit I/O 2022-10-21 05:12:21 -03:00
606f9b959a chore: stub CPU HALTing 2022-10-21 05:12:21 -03:00
2a3d0c8b0d chore: properly write to VOFS and HOFS in 32-bit bus 2022-10-21 05:12:21 -03:00
4405fa6bbf feat: implement hofs and vofs on io bus 2022-10-21 05:12:21 -03:00
08e4eb1bf1 feat: add support for multiple BGs in Mode 0 2022-10-21 05:12:20 -03:00
f4b176a813 feat: document mode 0 2022-10-21 05:12:20 -03:00