27 Mar
2017
27 Mar
'17
11:54 p.m.
That's cool. I need to scrounge around and find my copy of Forth we
used on a 6809 tape
controller firmware. I had forth in the diagnostic firmware that we had
on a snapon module
and you could compose whatever diagnostic exercises you chose by
executing the basic
test functions we had in Forth.
Thanks for posting and finding it or writing it, Eric.
thanks
jim
On 3/27/2017 10:51 PM, Eric Smith via cctalk wrote:
On Mon, Mar 27, 2017 at 2:53 PM, Sean Conner via
cctalk <
cctalk at classiccmp.org> wrote:
Some time ago I came across the MC6839 ROM
which contains floating point
routines for the 6809. The documentation that came with it stated:
Written for Motorola by Joel Boney, 1980
Released into the public domain by Motorola in 1988
Docs and apps for Tandy Color Computer by Rich Kottke, 1989
What I haven't been able to find is the actual *source code* to the
module. Is it available anywhere? I've been playing around the the MC6839
on an emulator but having the source would clear up some issues I've been
having with the code.
https://github.com/brouhaha/float09
I haven't modified it to assemble with a readily available assembler, so I
don't know whether it assembles into the exact MC6839 ROM image.