[Coco] Computer Assisted translation of programs form 6502 to 6809

Dave Philipsen dave at davebiz.com
Mon Feb 1 19:29:52 EST 2016


Nope, I specifically wanted the cross assemblers mostly for the ability 
to make modifications for the assembler to accommodate some new 
instructions that were present in the 65C02 which I and some others were 
working with at the time.  They were instructions that were not part of 
the original 6502 instruction set.  My hope at one point was to also add 
instructions to the 6809 assembler to effectively create a 6309 native 
mode assembler but it wasn't a priority at the time. I only ever worked 
on one 6809 project that was a commercial project (maybe two if you 
count SuperComm as a commercial project) and neither used a 6309 at that 
time. In fact, some may disagree with me on this but even now I do not 
perceive that much of an improvement of the 6309 over the 6809 with the 
exception of the shortening of some instruction cycle times that gives 
the 6309 the real edge over the 6809 in the neighborhood of maybe 10% on 
average.

Dave


On 2016-02-01 14:00, Camillus wrote:
> Hi Dave,
> 
> 
> Was a 6502/6809 translator included in that assemble package?
> 
> cb
> 
> Sent from Mailbird
> [http://www.getmailbird.com/?utm_source=Mailbird&utm_medium=email&utm_campaign=sent-from-mailbird]
> On 2/1/2016 11:15:30 AM, Dave Philipsen <dave at davebiz.com> wrote:
> That's a nice article. I have not read it in its entirety but it's
> evident that "Bud" Pass knows his stuff. I mentioned once before that
> he no longer resides at the address in Conyers, GA nor does he have
> the same phone number. I believe that in some point in time he moved
> to Florida to retire. If anyone knows of his whereabouts or whether
> he's still around please let me know. I'd love to give away his cross
> assemblers and some utilities he wrote along with their source files
> that he sold me some 25 years ago. But I will only do it with his
> permission or if I know he has passed (no pun intended). I have the
> assemblers for 6502, 6801/11, 6809, 8048, and 8051 along with
> utilities to convert Motorola S records to binary or Intel. I still
> use these programs today because they are very stable, fast, tried and
> proven.
> 
> Dave Philipsen
> 
>> On Feb 1, 2016, at 10:40 AM, Tormod Volden wrote:
>> 
>>> On Mon, Feb 1, 2016 at 4:49 PM, Tony Cappellini wrote:
>>> http://boutillon.free.fr/tmp/JeanPierre/6809/6502to6809.pdf
>> 
>> That copy is not complete and pages of the article are missing. A full
>> copy can be found at the Internet Archive:
>> https://archive.org/details/micro-6502-journal-50
>> 
>> Searching for the article, I can see this was posted on reddit just
>> now, probably not a coincidence. Maybe you can post the better link
>> there?
>> 
>> Tormod
>> 
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