[Coco] How to get into CoCo 6809 assembly?

stanblaz at optusnet.com.au stanblaz at optusnet.com.au
Mon Feb 6 02:24:49 EST 2012

G'day Folks,

I am more of a lurker on this mailing list but I thought I'd chime in
on this one due to the fact that I have a collection of books from my
'more active' CoCo days ...  the ML programming ones include ....

* - TRS-80 colour computer assembly language programming by William
Barden Jr.
* - The MC6809 Cookbook by Carl D. Warren
* - Machine language programming from the ground up by Hubert S. Howe
* - Assembly language graphics for the TRS-80 color computer by Don &
Kurt Inman.
* - Programming the 6809 by Rodnay Zaks & William Labiak.
* - MC6809-MC6809E microprocessor programming manual by Motorola
semiconductor products.

I'm pretty sure 'all' of these books predate the CoCo3 but they're a
great starting point.

I am offering any/all of these books free (except for postage) to
anyone who can make use of them.

I am located in Melbourne, Victoria, Australia & the weight of the
books listed is about 2.5Kg
Obviously I would prefer pickup but I seriously doubt that is likely
to happen.

On Sun, 05 Feb 2012 20:18:08 -0500, you 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:
>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+.
>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:
>You should also get a copy of all the Spectral Associates "Unravelled" series:
>Many good pdf files, including the Leventhal, are at 

Australia isn't "down under", it's "off to one side"!

http://www.cobracat.com (home of the Australian Cobra Catamaran)
http://www.parkdaleyc.com (where most of them sail)
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http://catsailor.net (where we talk even more)

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