lilNES

A little NES emulator with raylib.

Current Features

• full emulation of 6502 CPU instructions
• working PPU with cycle stepped rendering, sprite 0 hit and dynamic mirroring
• parses iNES rom files, currently support for only mapper 0-3
• controls and color accurate rendering with raylib

Future Features

• mapper 4 support
• interactive debugger with disassembler
• sprite and memory map viewer
• cycle accurate timing(works for the most part for now but fails some tests)
• APU implementation
• gui/cli emulator configuration
• save file stuff

Building

mkdir build
cd build
cmake ..
cmake --build . --config Release

Usage

lilNES.exe <rom path>

Controls

NES Controller	Keyboard Input
D-Pad Up	Up Arrow
D-Pad Down	Down Arrow
D-Pad Left	Left Arrow
D-Pad Right	Right Arrow
A Button	Z
B Button	X
Start	S
Select	A

Screenshots