MLX is a series of machine language entry utilities published by the magazines COMPUTE!
These programs are designed to allow relatively easy entry of the type-in machine language listings often included in these publications.
MLX listings were reserved for programs written entirely in assembly, without combining Basic, like SpeedScript, a word processor.
Tiny MLX was written for use on unexpanded VIC machines, although a consequence of this is that the user can't save and continue typing at another time, they have to type the entire listing in one sitting.
In the Commodore 64 version, beginning in the May 1984 issue of COMPUTE!, several keyboard keys were redefined to create a makeshift numeric keypad[5] and this keypad was added to the Gazette version in July 1984.
MLX 128 arrived in the August 1986 Gazette[10] and the March 87 Compute!, using ths same hex format as the new Apple II version.