In the off-chance somebody else finds this useful, I've uploaded a
more complete version of the assembler I posted a couple of weeks ago.
It can be found here: http://www.prism.gatech.edu/~gtg990h/amd64-asm.tar.gz
It's no yasm, but it generates the same code for the constructs it can
handle (many general-purpose instructions, nearly all of SSE/SSE2/
SSE3), and it's entirely in Lisp.
--- Rayiner Hashem