The state of the emulated console: CPU, PPU, memory, controllers, and the inserted cartridge.

A NES with no cartridge inserted.

Use fromRom to load a game.

Inserts a cartridge into the NES and presses reset.

Presses the reset button, restarting the currently inserted game.

Advances one step (instruction) in the NES.

Gets the current framebuffer from the PPU.

Use this to draw pixels on the screen.

Gets the current frame count from the PPU.

When the frame counter advances, draw a new frame on the screen.

A button on a NES controller.

The controller port a button press is sent to.

Whether a button is held down (True) or released (False).

Register a key press (or release)