Path: utzoo!telly!ddsw1!mcdchg!rutgers!mailrus!tut.cis.ohio-state.edu!cs.utexas.edu!bunda
From: bunda@cs.utexas.edu (John Bunda)
Newsgroups: gnu.gcc
Subject: Re: Targeting GCC to a 16-bit'er
Summary: probably can do it
Message-ID: <3464@cs.utexas.edu>
Date: 5 Oct 88 15:38:38 GMT
References: <8810051205.AA08155@decwrl.dec.com>
Distribution: gnu
Organization: U. Texas CS Dept., Austin, Texas
Lines: 18

You can probably make gcc generate code for the "Q" processor
provided you run it as a crosscompiler on the Vax as you indicate.
A machine description is not hard, but there is a bit of a learning
curve.  You will also face the problem of not having a library,
so you will essentially have to rewrite gnulib (library routines
for certain "instructions" like multiply, mod, divide, etc.)
as well as some of the  standard unixoid utilities as well,
e.g. malloc, printf, etc.
I have done this for an experimental machine, and it works quite well.
(you will also need an assembler and linker - we wrote our own assembler,
and are using gnu ld from binutils).
Good luck...

-John

-- 
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John Bunda            UT CS Dept.      
bunda@cs.utexas.edu   Austin, Texas