James Cameron wrote:

>                           I'd love to know which of the Linux
> assemblers is closest to MPASM, and yes, I know I can dosemu.


gpasm

http://reality.sgi.com/jamesb/gpasm/


It currently supports only a subset of MPASM's features, but it IS 100%
compatible for those features. Expect enhancements over the next few
weeks - or sooner if you care to add them...

Scott