GZX vs ZX2040

GZX is a ZX Spectrum emulator that runs on Windows, Linux, and HelenOS. It emulates the 48K, 128K, +2, and +2A models, and includes Kempston joystick support. It can read, write, and convert TZX, TAP, and WAV tape formats, and supports Z80, SNA, and AY snapshots. Graphics features include double-line mode, ULAplus, and Spec256 emulation. GZX also emulates the built-in MIDI port of the 128K Spectrum. It can record audio to WAV files and data sent to I/O ports, and includes a built-in debugger. Most of the emulator, including its source, binaries, font, and documentation, is free software under an MIT-style license; ZX Spectrum ROM files are excepted. The 2019.1 binary release supports 64-bit Linux and Windows. Building requires a GNU toolchain and SDL 1.2 development package on Linux or a similar operating system. Some games do not work, and many turbo-loading games from TZX fail to load.

ZX2040 has no write-up on Specifiction yet; its figures are above.