Atari800 vs Felix

Atari800 emulates Atari 8-bit computer systems and the Atari 5200 game console. It supports cycle-exact emulation of the 6502 processor and the NMI, POKEY, ANTIC and GTIA components. The emulator handles ATR, XFD, DCM, ATR.GZ and XFD.GZ disk images, with up to eight emulated drives. It can load Atari executable files and BASIC programs, emulate cassette tapes, and save files to the host computer through the H: device. Users can connect real joysticks or emulate paddles, light pens, light guns, mice and trackballs. Atari800 can save screen snapshots as PCX or PNG and write sound output to WAV files. It runs on Linux, Windows, macOS and Android; source and binary packages are available through GitHub releases, with Linux package instructions for Debian and Fedora. The project describes Atari800 as freely distributable, with source under GPL version 2. Its release notes describe NetSIO and FujiNet support for network SIO over UDP. Atari800 is written in C, and a BIOS is required.

Felix is a free Atari Lynx emulator distributed as a public GitHub repository under the MIT license. It currently builds only under Windows, with documented build routes through Visual Studio 2022 or command-line CMake; both require Visual Studio 2022, Git, and CMake. The README says it is expected to work in Wine, Parallels, and similar environments. Version 0.5.0 introduced a simple graphical interface, redefinable key mapping, and basic gamepad support. Release notes also list Lua debugging facilities, a monitor window, and commands for dumping WAV and VGM audio. Lua libraries for string, os, math, and table are included. The latest listed release is 0.6.4. Known issues in version 0.6.0 include hangs in Awesome Golf and Scrapyard Dog, crackling from audio/video synchronization, and debugging features that remain imperfect. The project is maintained through the laoo account, whose profile names Waldemar Pawlaszek and lists Wrocław.