[Coco] How to get into CoCo 6809 assembly?

[Aaron Banerjee]

Trying to resist joke on providing instructions on how to assemble a  
TRS-80 Color Computer...

Seriously, as a reference, manual, I was quite impressed with "TRS-80  
Color Computer Assembly Language Programming" by William Barden, Jr.
It is a very good reference that isn't just some sort of "assembly  
language dictionary", or other fluff book.   It starts from the  
beginning and gives some real examples, sort of like the other Radio  
Shack books of the day (e.g. "Getting Started with Color Basic",  
etc).  It's a good start for someone who may know nothing about  
assembly, but otherwise has a good head on their shoulders.
    Sorry, I don't think you'll find Barden's book at Radio Shack  
these days, though.
               - Aaron


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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