This is a (work in progress) disassembly of the MS-DOS 1.25 EDLIN.COM
binary. Sources deriving from MS-DOS are under MIT license, see
LICENSE.microsoft, while other sources are under CC0, see LICENSE.tools.

Currently the code has been fully converted to assembly with symbolic
memory references, meaning that the code can be edited and the resulting
binary will run without problems. However, majority of the code is not yet
understood, labeled, or commented.