MLX is a series of machine language entry utilities published by the magazines COMPUTE! and COMPUTE!'s Gazette, as well as books from COMPUTE! Publications. These programs are designed to allow relatively easy entry of the type-in machine language listings often included in these publications. Versions are available for the Commodore 64, VIC-20, Atari 8-bit computers, and Apple II. MLX listings were reserved for relatively long machine language programs such as SpeedScript.