Date   : Wed, 02 Apr 1986 17:44:00 GMT
From   : mbate@ada-uts
Subject: Re: Zilog Z80 assembler

    I personally have Z80ASM from SLR systems, and I love it.  It cost $50.,
has full macro facilities, generates HEX, COM, or REL output, and is
super-fast.  Their linker is an additional $50, but there is also a public
domain linker (PROLINK, I think it's called) that was developed by
Night Owl software and used internally in the development of MEX.
    If, as I suspect, you don't need this much power, there is at least one
public domain Z80 assembler.  I think there is one that is also called Z80ASM
that handles macros but generates only HEX files.
    ZAS, from Echelon, is also a reasonable choice.  This package costs
$80 (I believe) and includes an assembler, linker, and librarian.  I have
not used ZAS but am told that it is much slower and fussier about its input
than Z80ASM from SLR.
   M80, from Microsoft, was still selling for $200, last time I heard. It's
slow and buggy.  It does, however, handle either Z80 or 8080 opcodes, unlike
the above, which handle only Z80.  M80 includes a linker and librarian.

   You should ask yourself what features you need in an assembler,
especially whether you need one that can generate relocatable code.