binjnes vs Nintengo

binjnes is a free NES emulator written in C, available in a browser or through source builds for Linux and macOS. Its cycle-accurate emulation passes many timing tests and supports numerous cartridge mappers using a built-in cartridge database. Mappers 19, 24, and 26 receive additional audio channels. Playback controls include pausing, advancing one frame, rewinding, and seeking to a specific cycle. Users can save and load battery backup data and emulator state files. The browser version is built as WebAssembly and lets users upload a file to play. Desktop build instructions use make or CMake; building requires CMake and sokol, and the WebAssembly instructions also require Emscripten. The project includes a Python test harness that validates tests with hashes, and the source code is distributed under the MIT License. The GitHub releases page lists no packaged downloads, so desktop users need to build from source.

Nintengo is a free NES emulator written in Go. It runs .nes files directly or inside ZIP archives and supports NTSC and PAL regions. Desktop build instructions cover Mac OS X, Linux, and Windows; a WebAssembly build can run in a browser using a local web server, with Go 1.11 or higher required for WebAssembly support. Battery-backed saves use .sav files, while save states use .nst files. Two-player netplay is available through listen and connect options. The emulator can capture JPEG screenshots, record GIF video, and record WAV audio. Its controls include keyboard input, pause and stepping, reset, save and load state, and fast-forward options. Debugging features include CPU instruction decoding, CPU and memory profiling, and an HTTP service address. Listed mapper support includes NROM, MMC1, UNROM, CNROM, MMC3, ANROM, and MMC2. Audio is a work in progress, with all channels working in some capacity. The project is published under the GPL-2.0 license.