Implementation of a CHIP-8 virtual machine written in C.
GUI is handled with the SDL2 library.
Features an output of the previous, current and future opcode instructions, relevant registers and a render of the contents of the I address register (used for holding sprite data).
Also features a Debug Mode activated with space bar that enables the user to step through instructions one-by-one with the down key.
Debug Mode overlays a grid with framebuffer positions which may come handy for ROM development and bugfixing.
Unit-tests are provided for its basic functionality and each implemented opcode.
- Stack implementation
- 60Hz clock (currently runs unhindered at CPU in a while-loop, which may be delayed by SDL calls)
- Some opcode implementations (
0NNN,00E0,00EE,2NNN,EX9E,EXA1and mostFXNNopcodes) - Sound (beeping)
Patryk Szczypień - patryk.szczypien@gmail.com
This project uses the MIT License with exception to external libraries which have they own licenses:
- SDL2
- Unity (unit testing library)
- PCG basic (PCG Random Number Generation for C.)