0xrsydn/gameboy-rust
1
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

feat(bios): expand packed units with BitUnPack

Browse source 
Add SWI 0x10, packed-unit widths, conditional offsets, complete word stores, and independent bit-level tests.
This commit is contained in:
0xrsydn 2026-10-05 12:55:35 +07:00
commit 0280563430
4 changed files with 515 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

9
src/bios.rs
View file

@ -1,13 +1,12 @@
//! Original, optional ARM BIOS replacement. No Nintendo firmware is included.
//! Supports interrupt waits and memory copy/fill.
//! Includes integer arithmetic services.
//! Includes LZ77 decoding.
//! Includes run-length decoding.
//! Supports interrupt waits, integer arithmetic, memory copy/fill, bit unpacking,
//! and LZ77/run-length decoding.
//! This is a functional subset, not a complete boot ROM or a timing-compatible BIOS.
use std::collections::BTreeMap;
mod arithmetic;
mod bit_unpack;
mod decompression;
mod lz77;
mod run_length;
@ -122,6 +121,7 @@ pub fn image() -> Vec<u8> {
(8, "sqrt"),
(0x0b, "cpu_set"),
(0x0c, "cpu_fast_set"),
(0x10, "bit_unpack"),
(0x11, "lz_wram"),
(0x12, "lz_vram"),
(0x14, "rl_wram"),
@ -218,6 +218,7 @@ pub fn image() -> Vec<u8> {
);
arithmetic::emit(&mut a);
bit_unpack::emit(&mut a);
lz77::emit(&mut a);
run_length::emit(&mut a);
decompression::emit_writer(&mut a);