[Coco] How to get into CoCo 6809 assembly?

[Blake Patterson]

I think I'd like to use the CoCo 3 itself for writing assembly. Does that mean EDTASM+ or that plus the patch Robert Gault sells?

I saw EDTASM+ in cart form before, but the patch seems to want it in disk form. Both exist?

Is there a nice set of example code -- little small test programs that utilize the CoCo 3 anywhere?

Thanks.




bp

On Feb 5, 2012, at 8:41 PM, Aaron Wolfe wrote:

> On Sun, Feb 5, 2012 at 8:18 PM, Robert Gault <robert.gault at att.net> wrote:
>> Blake Patterson wrote:
>>> 
>>> So I've now got both a DriveWire and a FD-500 floppy disk system (though
>>> one of the drives is apparently not connected inside the enclosure - need to
>>> figure that out). I'd like to fiddle around with 6809 assembly on the CoCo
>>> 3.
>>> 
>>> Can someone point me to an assembler package I'd need? I'd like to fiddle
>>> around with CoCo 3 screenmodes, etc -- so I want to write a few "CoCo 3" vs.
>>> prior programs.
>>> 
>>> Also, what's a good general 6809 reference and reference for the internals
>>> info I'd need to access the CoCo 3 itself?
>>> 
>>> Thanks much, in advance!
>>> 
>> 
>> You should try Tandy's Disk EDTASM+ which should be in the following zip
>> file:
>> http://www.tandycoco.com/dsk_imgs/rs-dos/cocodownunderrsdos.zip
>> It may be at other sites also.
>> 
>> If it turns out that you want a better enhanced version, you can consider
>> the patch I sell for EDTASM+.
>> http://aaronwolfe.com/robert.gault/Coco/Sales/Edtasm6309.htm
>> 
>> If you decide that you would rather work with a full screen rather than a
>> line editor, consider buying one of Roger Taylor's products such as
>> RainbowIDE. You can create source code, assemble it, and immediately test it
>> in MESS Coco emulation.
>> 
>> One of the best books on the 6809 is "6809 Assembly Language Programming" by
>> Lance A. Leventhal. You should get a copy of the Coco3 service manual:
>> ftp://maltedmedia.com/coco/MANUALS/TANDY/HARDWARE/COCO3/
>> You should also get a copy of all the Spectral Associates "Unravelled"
>> series:
>> ftp://www.rtsi.com/RSDOS/incoming/UnravelledSeries/
>> Many good pdf files, including the Leventhal, are at
>> http://cococoding.aaronwolfe.com/home/docs
>> 
> 
> There is also lwtools, if you want to write code on a modern machine
> its very nice:
> 
> http://lwtools.projects.l-w.ca/
> 
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