DASM is a DOS-based disassembler for 8080, 8085, Z-80, 8051, 8086, and
PDP-8 code, by John Wilson <wilson@dbit.com>.  It performs a "dry run"
execution trace so it can make a good guess of where labels should go.

Note:  "dasm.doc" is a plain text file, NOT a Microsoft Word document!
So yes you CAN read it even if you're in a M$-free environment.