xa (aka xa65) is a Mostech 6502
family cross assembler
originally written by Andre Fachat
. It's one of the few GPL
ed cross-assemblers that make programming Commodore 64
Hacking assembly with XEmacs is much more fun than when using Turbo Assembler's clunky editor... or something equally sinister. Plus, my P166 running Linux compiles code a bit faster than my C64...