This is a basic CHIP-8 emulator written in C in a few days. It uses SDL2 for input and output, but in theory can be used with other libraries since main code is made to be library-independent. Requirements: C compiler, SDL2, SDL2_Mixer and SDL2_ttf.
Interpreter supports workarounds for instructions 8XY6, 8XYE, 8X55 and 8X65. These are required for some games and programs such as Merlin, Keypad test program, and BC Test ROM by BestCoder.
Usage: ./chip8emu <romfile> <workaround flag>
- The default speed is 500 Hz, or 500 cycles per clock.
- You can increase the speed by 10 Hz during execution by pressing ] and decrease it by pressing [
- To enable workarounds, just pass "1" after ROM path (see usage).
- You can reset the emulator during program execution at any time by pressing P
| 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 |
