Rekai Nyangadzayi Musuka
55dada243e
chore: add debug keybinds for scheduler capacity + event count
2022-10-21 05:12:45 -03:00
Rekai Nyangadzayi Musuka
78e7c0bc3f
perf: don't check scheduler every iteration of runFrame loop
...
~20fps gain in Pokemon Emerald, nice
2022-10-21 05:12:45 -03:00
Rekai Nyangadzayi Musuka
9134456229
chore: simplify 4bpp palette code
2022-10-21 05:12:45 -03:00
Rekai Nyangadzayi Musuka
0ef71ecb49
perf: convert BGR555 to RGBA8888 at compile-time, access w/ lookup table
...
Compile speed isn't slowed down by that much + there's a ~20fps gain in
Pokemon emerald, though this isn't anything exact
2022-10-21 05:12:45 -03:00
Rekai Nyangadzayi Musuka
3d18685d36
chore: modify type signature of util.sext
2022-10-21 05:12:45 -03:00
Rekai Nyangadzayi Musuka
f194bee4eb
chore: cleanup main
2022-10-21 05:12:44 -03:00
Rekai Nyangadzayi Musuka
f373d8e17c
chore: emu audio sync code to emu.zig
2022-10-21 05:12:44 -03:00
Rekai Nyangadzayi Musuka
1b7d15e7d2
chore: redo apu sampling
2022-10-21 05:12:44 -03:00
Rekai Nyangadzayi Musuka
89d8c08cd1
chore: implement apu u16 reads
2022-10-21 05:12:44 -03:00
Rekai Nyangadzayi Musuka
3cd02a44cf
fix: clean up frequency timer implementations
2022-10-21 05:12:44 -03:00
Rekai Nyangadzayi Musuka
87eb0cc808
Revert "fix: resolve off-by-one errors when scheduling freq timer expirations"
...
This reverts commit c9b0030b4b
2022-10-21 05:12:43 -03:00
Rekai Nyangadzayi Musuka
8313210ddc
fix: resolve off-by-one errors when scheduling freq timer expirations
2022-10-21 05:12:43 -03:00
Rekai Nyangadzayi Musuka
2664f5cf20
chore: improve APU accuracy + scheduler refactoring
2022-10-21 05:12:43 -03:00
Rekai Nyangadzayi Musuka
29ee225c1f
feat: stub Affine BG registers
2022-10-21 05:12:43 -03:00
Rekai Nyangadzayi Musuka
ff6d2517be
fix: resolve out-of-bounds error with 8bpp tall / horizontal sprites
...
Boot ROM is now enabled by default as well
2022-10-21 05:12:43 -03:00
Rekai Nyangadzayi Musuka
242bf08cf2
chore: improve audio accuracy
2022-10-21 05:12:42 -03:00
Rekai Nyangadzayi Musuka
996de65688
chore: reintroduce thread sleeping + simplify fps counter
2022-10-21 05:12:42 -03:00
Rekai Nyangadzayi Musuka
b97b66927f
feat: implement double buffering
2022-10-21 05:12:42 -03:00
Rekai Nyangadzayi Musuka
628d4cfb68
chore: clean up DMA code
2022-10-21 05:12:42 -03:00
Rekai Nyangadzayi Musuka
ff002f18c6
feat: handle DMA IRQs (maybe?)
2022-10-21 05:12:42 -03:00
Rekai Nyangadzayi Musuka
5d5d3827fb
chore: contain Timers in a tuple rather than a struct
2022-10-21 05:12:42 -03:00
Rekai Nyangadzayi Musuka
8826242bf3
chore: contain DMA Controllers in a tuple rather than a struct
2022-10-21 05:12:41 -03:00
Rekai Nyangadzayi Musuka
570ff8536c
chore: resolve incorrect memory mirror in VRAM
...
+ stub GPIO registers on ROM Write
2022-10-21 05:12:41 -03:00
Rekai Nyangadzayi Musuka
2c0d2b64a2
chore: stub a few I/O registers
2022-10-21 05:12:41 -03:00
Rekai Nyangadzayi Musuka
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
Rekai Nyangadzayi Musuka
a102d68e99
chore: define affine sprite attributes
2022-10-21 05:12:41 -03:00
Rekai Nyangadzayi Musuka
61483b93e8
feat: stub mode 1 and 2
2022-10-21 05:12:40 -03:00
Rekai Nyangadzayi Musuka
192d7645eb
feat: implement mode 5
...
I wonder which obscure game makes heavy use of this mode
2022-10-21 05:12:40 -03:00
Rekai Nyangadzayi Musuka
f1c68fb0de
chore: comment ARM MSR code + Audio issues
2022-10-21 05:12:40 -03:00
Rekai Nyangadzayi Musuka
cb74bfd280
chore: pass destoer's cond_invalid test
2022-10-21 05:12:40 -03:00
Rekai Nyangadzayi Musuka
0d1717538b
chore: misc print message improvements
2022-10-21 05:12:40 -03:00
Rekai Nyangadzayi Musuka
896ae0935a
chore: improvements to APU accuracy
2022-10-21 05:12:39 -03:00
Rekai Nyangadzayi Musuka
1a23073424
fix: incorrect order-of-operations in ARM BL impl
2022-10-21 05:12:39 -03:00
Rekai Nyangadzayi Musuka
36f3b0d381
chore: special case saving for ROMS without titles
2022-10-21 05:12:39 -03:00
Rekai Nyangadzayi Musuka
c2f3790dc3
feat: pass DenSinH's eeprom-test
2022-10-21 05:12:39 -03:00
Rekai Nyangadzayi Musuka
746c28004f
feat: implement EEPROM
2022-10-21 05:12:38 -03:00
Rekai Nyangadzayi Musuka
084d4b28dd
chore: implement I/O regsister for Minish Cap
2022-10-21 05:12:38 -03:00
Rekai Nyangadzayi Musuka
ed6e83b121
chore: change default window scale to 4x
2022-10-21 05:12:38 -03:00
Rekai Nyangadzayi Musuka
b827ba3a1c
chore: write more debug log messages for unimplemented registers
2022-10-21 05:12:38 -03:00
Rekai Nyangadzayi Musuka
0f343f0b74
chore: only sync to audio for now
2022-10-21 05:12:38 -03:00
Rekai Nyangadzayi Musuka
7a670c6ed9
feat: panic on unimplemented I/O in ReleaseSafe/Debug but not ReleaseFast
2022-10-21 05:12:38 -03:00
Rekai Nyangadzayi Musuka
e690f88cda
chore: misc improvements
2022-10-21 05:12:37 -03:00
Rekai Nyangadzayi Musuka
c7f537959b
fix: improper lifetime for *Arm7tdmi ptr in Bus
...
*Arm7tdmi ptr is now assigned one scope up so that it lives as least
as long as Bus does
2022-10-21 05:12:37 -03:00
Rekai Nyangadzayi Musuka
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
Rekai Nyangadzayi Musuka
f8159645e0
feat: implement ch3
2022-10-21 05:12:37 -03:00
Rekai Nyangadzayi Musuka
cccb83a926
feat: implement ch2
2022-10-21 05:12:37 -03:00
Rekai Nyangadzayi Musuka
af8fe66c43
feat: implement ch1
...
TODO: It's really loud
2022-10-21 05:12:36 -03:00
Rekai Nyangadzayi Musuka
1f23aff22c
chore: broken impl of ch1
2022-10-21 05:12:36 -03:00
Rekai Nyangadzayi Musuka
e580b78020
feat: add audio resampler
...
Also implement extremely naive audio sync
2022-10-21 05:12:36 -03:00
Rekai Nyangadzayi Musuka
a87a5ce273
chore: calculate apu sample rate a bit better
2022-10-21 05:12:36 -03:00
Rekai Nyangadzayi Musuka
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
Rekai Nyangadzayi Musuka
14bb2f6fbe
chore: improve timer behaviour
2022-10-21 05:12:36 -03:00
Rekai Nyangadzayi Musuka
d144973acf
chore: move some init code to functions
2022-10-21 05:12:35 -03:00
Rekai Nyangadzayi Musuka
eecd78a008
feat: impelemt THUMB open bus
2022-10-21 05:12:35 -03:00
Rekai Nyangadzayi Musuka
c03c142b14
feat: implement ARM read open bus
2022-10-21 05:12:35 -03:00
Rekai Nyangadzayi Musuka
40f3600de2
fix: remove accidental rotation in ldrsh instructions
2022-10-21 05:12:35 -03:00
Rekai Nyangadzayi Musuka
c08e331f77
chore: move log statement
2022-10-21 05:12:35 -03:00
Rekai Nyangadzayi Musuka
a92989ed24
chore: remove magic numbers
2022-10-21 05:12:35 -03:00
Rekai Nyangadzayi Musuka
6c61eb3537
chore: remove unnecessary 32MB allocation
2022-10-21 05:12:34 -03:00
Rekai Nyangadzayi Musuka
05c1274ec1
chore: define more I/O read/writes
2022-10-21 05:12:34 -03:00
Rekai Nyangadzayi Musuka
27ad8772ea
feat: pass jsmolka memory.gba
2022-10-21 05:12:34 -03:00
Rekai Nyangadzayi Musuka
135987745c
chore: ignore instead of logging errors for perf reasons
2022-10-21 05:12:34 -03:00
Rekai Nyangadzayi Musuka
f039c891c7
feat: Initial Implementation of DMA Audio
2022-10-21 05:12:33 -03:00
Rekai Nyangadzayi Musuka
e69f4cfafe
chore: tick scheduler on memory access
2022-10-21 05:12:33 -03:00
Rekai Nyangadzayi Musuka
a4020400da
chore: log error on open bus in page 0x00 and 0x01
2022-10-21 05:12:33 -03:00
Rekai Nyangadzayi Musuka
d4aac22e34
chore: rewrite I/O read/writes
2022-10-21 05:12:33 -03:00
Rekai Nyangadzayi Musuka
601e717850
chore: reimplement bus read/writes
2022-10-21 05:12:33 -03:00
Rekai Nyangadzayi Musuka
886b9abf3d
fix: force align reads/writes in memory bus rather than in CPU
2022-10-21 05:12:32 -03:00
Rekai Nyangadzayi Musuka
9c87b9820e
fix: pass none.gba and kind of sram.gba from jsmolka test suite
2022-10-21 05:12:32 -03:00
Rekai Nyangadzayi Musuka
1fe332a44f
feat: implement GamePak out-of-bounds reads
2022-10-21 05:12:32 -03:00
Rekai Nyangadzayi Musuka
b6d2084c96
chore: run zigfmt
2022-10-21 05:12:32 -03:00
Rekai Nyangadzayi Musuka
ed896d976d
chore: change implementation of rotr
2022-10-21 05:12:32 -03:00
Rekai Nyangadzayi Musuka
677eecad41
chore: rewrite read/write methods for remainig Bus devices
2022-10-21 05:12:32 -03:00
Rekai Nyangadzayi Musuka
74b6fa2ecc
chore: mirror VRAM
2022-10-21 05:12:31 -03:00
Rekai Nyangadzayi Musuka
effb6315e9
chore: write generic read/write for VRAM
2022-10-21 05:12:31 -03:00
Rekai Nyangadzayi Musuka
3c8390a248
Merge branch 'main' of ssh://musuka.dev:2222/paoda/zba
2022-10-21 05:12:31 -03:00
Rekai Nyangadzayi Musuka
8337a6dcd9
chore: update dependencies
2022-10-21 05:12:31 -03:00
Rekai Nyangadzayi Musuka
2d8fa9c2f7
fix: don't create un-needed save file
...
If we don't know if we support a game's save type yet, avoid
creating a file for it.
2022-10-21 05:12:30 -03:00
Rekai Nyangadzayi Musuka
b76481b34c
chore: don't assume 1cpi when stepping by a frame
2022-10-21 05:12:30 -03:00
Rekai Nyangadzayi Musuka
147f6ac9ec
Revert "chore: tick on memory access instead of 1cpi"
...
This reverts commit 7f555095f2
2022-10-21 05:12:30 -03:00
Rekai Nyangadzayi Musuka
84273cbdad
chore: tick on memory access instead of 1cpi
2022-10-21 05:12:30 -03:00
Rekai Nyangadzayi Musuka
885f92beeb
feat: implement Flash backup cartrige kinds
2022-10-21 05:12:30 -03:00
Rekai Nyangadzayi Musuka
f12800f2d0
chore: stub more apu I/O addresses
2022-10-21 05:12:30 -03:00
Rekai Nyangadzayi Musuka
a93b335dea
fix: account for subset of disallowed chars in save file names
2022-10-21 05:12:29 -03:00
Rekai Nyangadzayi Musuka
ad9463dcb9
feat: implement SRAM saving and loading
2022-10-21 05:12:29 -03:00
Rekai Nyangadzayi Musuka
242627199b
chore: properly deallocate OAM buffer
2022-10-21 05:12:29 -03:00
Rekai Nyangadzayi Musuka
22a8f67d81
fix: speed percentage in title is now accurate
...
We now properly account for full speed being 59.97Hz not, 59Hz or 60Hz
2022-10-21 05:12:29 -03:00
Rekai Nyangadzayi Musuka
4ee0eed2e5
chore: make some variables const
2022-10-21 05:12:29 -03:00
Rekai Nyangadzayi Musuka
20f39176c6
feat: minor performance improvements
2022-10-21 05:12:29 -03:00
Rekai Nyangadzayi Musuka
ed792d71d3
feat: switch from BGR555 to RGBA8888
2022-10-21 05:12:28 -03:00
Rekai Nyangadzayi Musuka
c3ae727ed1
fix: improve perf of instructions w/ rotr
2022-10-21 05:12:28 -03:00
Rekai Nyangadzayi Musuka
0116dcdbe1
fix: improve frame limiting and fps counting
2022-10-21 05:12:28 -03:00
Rekai Nyangadzayi Musuka
5ecbcc9f33
fix: implement proper SRAM mirroring and stub Flash
2022-10-21 05:12:28 -03:00
Rekai Nyangadzayi Musuka
2d16e4a4e6
chore: move DMA and Timers from io to bus
2022-10-21 05:12:28 -03:00
Rekai Nyangadzayi Musuka
bb9dc45e0c
feat: define APU registers
2022-10-21 05:12:27 -03:00
Rekai Nyangadzayi Musuka
9dcecc0d58
fix: move code in scheduler to ppu
2022-10-21 05:12:27 -03:00
Rekai Nyangadzayi Musuka
92e63f5dd6
chore: create different types of emuloops
2022-10-21 05:12:27 -03:00
Rekai Nyangadzayi Musuka
74cda6a1d0
fix: resolve relative sprite priority issues
2022-10-21 05:12:27 -03:00
Rekai Nyangadzayi Musuka
d7354cca33
chore: improve accuracy of frame limiter
2022-10-21 05:12:27 -03:00
Rekai Nyangadzayi Musuka
7684cf0f4a
chore: improve accuracy of thread sleep in emu thread
2022-10-21 05:12:27 -03:00
Rekai Nyangadzayi Musuka
3994c2c7c8
feat: implement video sync
2022-10-21 05:12:26 -03:00
Rekai Nyangadzayi Musuka
a768d28e7c
chore: organize io switch statements
2022-10-21 05:12:26 -03:00
Rekai Nyangadzayi Musuka
efd99f16e0
fix: mirror SRAM
...
SRAM is mirrored in 64K chunks
TODO: According to GBATEK SRAM chips are 32K and mirrored
2022-10-21 05:12:26 -03:00
Rekai Nyangadzayi Musuka
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
Rekai Nyangadzayi Musuka
e3e45cd129
feat: implement Timers
2022-10-21 05:12:26 -03:00
Rekai Nyangadzayi Musuka
15191aedca
fix: implement sprite coord overflow behaviour
2022-10-21 05:12:26 -03:00
Rekai Nyangadzayi Musuka
63486f13f2
fix: resolve issues with sprite mirroring
2022-10-21 05:12:25 -03:00
Rekai Nyangadzayi Musuka
17455e40d1
feat: Implement MVP of Mode 0 Sprites
2022-10-21 05:12:25 -03:00
Rekai Nyangadzayi Musuka
d54e593276
chore: clean up io
2022-10-21 05:12:25 -03:00
Rekai Nyangadzayi Musuka
c6a544a824
feat: fix tile flipping issue
2022-10-21 05:12:25 -03:00
Rekai Nyangadzayi Musuka
e3ae3635bc
chore: add some type definitions for sprites
2022-10-21 05:12:25 -03:00
Rekai Nyangadzayi Musuka
6723bfb364
feat: improve DMA Transfer support
2022-10-21 05:12:25 -03:00
Rekai Nyangadzayi Musuka
12c628e82c
chore(ppu): resolve integer overflow regression
2022-10-21 05:12:24 -03:00
Rekai Nyangadzayi Musuka
5f9abf69d3
feat(ppu): implement bg priority and transparency
2022-10-21 05:12:24 -03:00
Rekai Nyangadzayi Musuka
68b0601a42
chore: replace unnecessarily complex sign extension implementation
2022-10-21 05:12:24 -03:00
Rekai Nyangadzayi Musuka
9455ffe837
feat: pass beeg yoshi
2022-10-21 05:12:24 -03:00
Rekai Nyangadzayi Musuka
02d2ff3e0c
fix: palette id is a u16 not a u8
2022-10-21 05:12:24 -03:00
Rekai Nyangadzayi Musuka
02572dd15c
feat: DMA Transfer MVP
2022-10-21 05:12:23 -03:00
Rekai Nyangadzayi Musuka
6d253cc74e
feat(ppu): implement transparency + backdrop in mode 0
2022-10-21 05:12:23 -03:00
Rekai Nyangadzayi Musuka
4885a86833
chore(io): replace some bitfields with enums
2022-10-21 05:12:23 -03:00
Rekai Nyangadzayi Musuka
fd9ffb20b4
fix: better emulate behaviour of IO reads
2022-10-21 05:12:23 -03:00
Rekai Nyangadzayi Musuka
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
Rekai Nyangadzayi Musuka
d4c7cfdf8b
feat: impelement a barebones SRAM
2022-10-21 05:12:23 -03:00
Rekai Nyangadzayi Musuka
4d75d156e5
feat: pass retAddr.gba
2022-10-21 05:12:22 -03:00
Rekai Nyangadzayi Musuka
d30a4d7ee5
feat: implement Hblank and Vcount Interrupts
...
Also implemented unique behaviour when writing to IF
2022-10-21 05:12:22 -03:00
Rekai Nyangadzayi Musuka
d1fce8ba75
chore: improve Bus log + panic messages
2022-10-21 05:12:22 -03:00
Rekai Nyangadzayi Musuka
0f74e4fcf9
chore: improve io.zig
2022-10-21 05:12:22 -03:00
Rekai Nyangadzayi Musuka
4afcbd0957
feat: implement mirroring for IWRAM EWRAM, OAM and PALRAM
...
Also realized I confused IWRAM and EWRAM. This is also fixed
TODO: Implemnt Mirroring for VRRAM
2022-10-21 05:12:22 -03:00
Rekai Nyangadzayi Musuka
50dc31447d
fix: resolve integer overflow in BG0 Drawing
2022-10-21 05:12:22 -03:00
Rekai Nyangadzayi Musuka
acf1a10f91
chore: don't panic on 32-bit I/O
2022-10-21 05:12:21 -03:00
Rekai Nyangadzayi Musuka
606f9b959a
chore: stub CPU HALTing
2022-10-21 05:12:21 -03:00
Rekai Nyangadzayi Musuka
f19b42baf3
chore: correct logic errors in map size 1 and 3
2022-10-21 05:12:21 -03:00
Rekai Nyangadzayi Musuka
2a3d0c8b0d
chore: properly write to VOFS and HOFS in 32-bit bus
2022-10-21 05:12:21 -03:00
Rekai Nyangadzayi Musuka
4405fa6bbf
feat: implement hofs and vofs on io bus
2022-10-21 05:12:21 -03:00
Rekai Nyangadzayi Musuka
e2b2bf882a
feat: implement scrolling
2022-10-21 05:12:21 -03:00
Rekai Nyangadzayi Musuka
08e4eb1bf1
feat: add support for multiple BGs in Mode 0
2022-10-21 05:12:20 -03:00
Rekai Nyangadzayi Musuka
f4b176a813
feat: document mode 0
2022-10-21 05:12:20 -03:00
Rekai Nyangadzayi Musuka
efc7d817db
feat: Mode 0 MVP
2022-10-21 05:12:20 -03:00
Rekai Nyangadzayi Musuka
1b17b1eb0c
chore: use zig slices for fun
2022-10-21 05:12:20 -03:00
Rekai Nyangadzayi Musuka
fab6d4c2a2
chore: give DISPCNT DISPSTAT and VCOUNT to PPU struct
2022-10-21 05:12:20 -03:00
Rekai Nyangadzayi Musuka
223a3403c0
chore: give io read/write functions access to the entire Bus
2022-10-21 05:12:20 -03:00
Rekai Nyangadzayi Musuka
dfd0d064de
feat: implement BG Scrolling Registers
2022-10-21 05:12:19 -03:00
Rekai Nyangadzayi Musuka
0c4882e658
feat: impelemnt BG0,1,2CNT and IF
2022-10-21 05:12:19 -03:00
Rekai Nyangadzayi Musuka
bfdad9fa32
feat: implement OAM
2022-10-21 05:12:19 -03:00
Rekai Nyangadzayi Musuka
37fd8dab84
chore: squash bugs preventing swi_demo.gba from working
2022-10-21 05:12:19 -03:00
Rekai Nyangadzayi Musuka
c143aefb01
chore(cpu): reimplement bank switching logic
2022-10-21 05:12:19 -03:00
Rekai Nyangadzayi Musuka
05bf245b5a
fix: don't mask away MSB in THUMB.5 add
2022-10-21 05:12:19 -03:00
Rekai Nyangadzayi Musuka
f9e7128061
fix: properly decode format 11 instructions
2022-10-21 05:12:18 -03:00
Rekai Nyangadzayi Musuka
603e4b6fdf
chore: make use of scoped logging
2022-10-21 05:12:18 -03:00
Rekai Nyangadzayi Musuka
599a1f2973
chore: remove TODOs and some useless imports
2022-10-21 05:12:18 -03:00
