README.md

CHIP-8 Emulator (Interpreter)

Just another CHIP-8 interpreter written in Rust.

Compile & Run

$ cargo run --release path/to/rom

Controls

CHIP-8 Machines have an hexadecimal pad, which is mapped into standard QWERTY like so:

HEX PAD | QWERTY
1 2 3 C | 1 2 3 4
4 5 6 D | Q W E R
7 8 9 E | A S D F
A 0 B F | Z X C V

Debug controls

• p -> Pause CPU
• n -> Next cycle
• o -> Reset program
• Numkey+ -> Duplicate clock freq
• Numkey+ -> Halve clock freq
• Numkey0 -> Reset freq (600hz)

Modifying the Clock frequency will alter the counting speed of the sound (st) and the delay (dt) registries, as they tick at a tenth of the clock speed (60hz).

Resources

• http://devernay.free.fr/hacks/chip8/C8TECH10.HTM
• http://mattmik.com/files/chip8/mastering/chip8.html

Screenshots