[Coco] Coco Digest, Vol 126, Issue 52

[Bill Pierce]

Barden's book is the one I like for 6809 instruction learning, but for the Coco itself and the Coco 3, Tepolt got more in depth into the machine and using it from Assembly.

for the Coco 2:
http://www.colorcomputerarchive.com/coco/Documents/Books/Assembly%20Language%20Programming%20for%20the%20Color%20Computer%20(1985)%20(Laurence%20A%20Tepolt).pdf

the addendum for Coco 3:
http://www.colorcomputerarchive.com/coco/Documents/Books/Assembly%20Language%20Programming%20for%20the%20CoCo3%20(1987)%20(Laurence%20A%20Tepolt).pdf

and then Barden's book on Subroutines:
http://www.colorcomputerarchive.com/coco/Documents/Books/Assembly%20Language%20Subroutines%20(1982)(Prentice%20Hall)(pdf).pdf

and of course (my Coco bible for 10 years) , Barden's classic:
http://www.colorcomputerarchive.com/coco/Documents/Books/Color%20Computer%20Assembly%20Language%20Programming%20(1983)%20(William%20Barden%20Jr).pdf

Hope this helps :-)

Bill Pierce
My Music from the Tandy/Radio Shack Color Computer 2 & 3 
https://sites.google.com/site/dabarnstudio/
Co-Webmaster of The TRS-80 Color Computer Archive
http://www.colorcomputerarchive.com/
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E-Mail: ooogalapasooo at aol.com




-----Original Message-----
From: Andrew <keeper63 at cox.net>
To: coco <coco at maltedmedia.com>
Sent: Mon, Jul 22, 2013 10:12 pm
Subject: Re: [Coco] Coco Digest, Vol 126, Issue 52


Hmm - must've missed that part. That's too bad.
You mentioned Barden's book, and I am sure I have a copy somewhere (?) - 
ut does it go into the specifics of how to use the GIME, etc in the CoCo 3?
Because that is what I am after. 6809 assembler can't be any more 
ifficult than any other assembler I have used and abused in the past; 
'm not saying I am an expert or anything, but I do have such 
xperience. Many years ago, I wrote a graphics library for QBASIC 
.1/QuickBASIC 4.5 called "The Blast! Library" - all the main routines 
ere done in 80x86 assembler.
The thing is, there seems to be so little out there about how to 
roperly use the GIME, etc to do things like scrolling, memory copying, 
tc - as well as setting up and using the various CoCo 3 graphics 
creens and such. What little there is, is scattered across a variety of 
rticles.
I would love to see a real tutorial on how to write a simple CoCo 3 
ame; heck, if someone wrote a tutorial on how to make a game of pong or 
pace invaders using 6809 assembler, on the CoCo 3 screens, that would 
ikely be more than enough.
Hint, hint...anybody? ;)
Andrew