Re: Macros are pretty neat...

If this is a dupe, I blame Google Groups for propagating my last
message attempt slowly :-/

Anyway, the code is here:

It's still a proof-of-concept at this stage; I'll post a more complete
version once I finish the rest of the assembler (code layout, labels,
SSE support). Instructions are in the source file, which requires asdf
and cl-iterate.