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
351a687a2d
chore: update README.md
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
