Henry Baker: COMFY - a comfortable set of control primitives for machine
language programming. ACD Sigplan 32/6 (1997), 23-27.

Henry Baker: The COMFY 6502 compiler.
ACM Sigplan 32/11 (1997), 25-30.

Gerd Sapper: Maschinenorientierte Sprachen.
Oldenbourg 1989, 130p. 3-486-20662-1. DM 48.