gnupic: PIC17C7xx gpasm support?
Subject:
Re: PIC17C7xx gpasm support?
From:
Scott Dattalo ####@####.####
Date:
5 Nov 2000 17:06:46 -0000
Message-Id: <Pine.LNX.4.21.0011051107130.4344-100000@tempest2.blackhat.net>
On Sun, 5 Nov 2000, Anthony Tekatch wrote:
>
> > I don't know if anyone has plans for it or not. However, adding support for the
> > 17Cxx parts should be straight forward since most of the work has been done with
> > the 12-bit, 14-bit, and 18cxxx 16-bit cores. The SX opcodes are even supported
> > (the mnemonics aren't, but the extensions the SX adds to the 12-bit core are).
>
> It looks pretty easy, I'll give it a try.
>
> What is the best method to test my changes:
> - is there a standard test file for each processor that I can modify for the PIC17Cxx?
> - do you disassemble the assembled code to check it with the original source?
If you look at the examples in gpasm you'll find .asm files I've written to test
how well gpsim simulates the instructions. Unfortunately, it won't work for you
since gpsim doesn't support the 17cxx core (hey Anthony, why you're at
it...). However, you may wish to look at these and try them out on a real 17C
processor.
look at:
examples/14bit/it.asm
and
examples/14bit/it18.asm
