devraza/rustboyadvance-ng
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Nintendo™ Game Boy Advance emulator and debugger.
This repository has been archived on 2024-06-01. You can view files and clone it, but cannot push or open issues or pull requests.
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Michel Heily c7dd713605 The big ioregs refactoring. 
This commit refactors the ioregs:
* Use bitfield crate to implement the GPU ioregs.
* IoRegs are stored in their own variables bindings (i.e, Gpu related ioregs are now fields of the Gpu struct)
  - This optimize performance quiet alot from my testings - since every scanline was accessing deseralizing ioregs from sysbus. (Getting constant 59fps now)
* For now, comment out DMA model

Also, cleaned the code up to eliminate rustc warnings.


Former-commit-id: 9077695c446ebd1a71783acfdd9819245aa02d7a
2019-08-03 00:24:15 +03:00
.vscode Update .launch.json 2019-07-04 01:36:41 +03:00
img Add demo gif to README.md 2019-06-28 15:32:21 +03:00
src The big ioregs refactoring. 2019-08-03 00:24:15 +03:00
.gitignore Initial commit 2019-06-24 16:36:20 +03:00
.travis.yml Fix typo in .travis.yml 2019-06-27 13:16:00 +03:00
Cargo.lock The big ioregs refactoring. 2019-08-03 00:24:15 +03:00
Cargo.toml The big ioregs refactoring. 2019-08-03 00:24:15 +03:00
LICENSE Create LICENSE 2019-06-24 16:36:20 +03:00
README.md Update README.md 2019-07-03 02:23:36 +03:00

README.md

RustBoyAdvance-NG

Build Status

RustBoyAdvance-NG aims to be a Nintendo GameBoy Advance emulator and debugger, written in the rust programming language.

RustBoyAdvance-NG currently has implemented

  • Dumbed-down ARM/THUMB mode disassembling
  • Some ARM/THUMB instruction are implemented, but not all of them.
  • A neat debugger REPL

But the way for full emulation is way far ahead, because most of the ARM/THUMB instructions are not yet implemented.

Using the REPL

You need to have rust installed, and somehow legally obtain a gba bios binary. Currently to test the debugger, any binary file containing arm mode instructions will do.

$ cargo run -- debug

Debugger REPL Demo

Why is this project needed ?

It's actually not. There are quite a lot of GBA emulators, and even some written in rust. Actually, I couldn't find any game capable emulators written in rust.

I'm only doing this as a side project intended for learning rust.

This is my third take on this project. My first go at this was about 3 years ago, but I didn't like rust much at the time so it got abandoned. I tried to resurrect it a year ago but didn't have the time to get invested in a side-project, let alone learning rust.

I've grown to like rust a lot since then, so here we go again. You know what they say, third time's a charm.

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