[Coco] How to get into CoCo 6809 assembly?

[Kip Koon]

Hi John!
I was going through some old emails and found this one.  I am interested in
your supped up disk ROMs, expanded BASIC ROMS images.  I'm interested in
supping up my Coco 1,2 & 3 roms and would like to know if you would care to
share what you did?  Thanks in advance.  Take care my friend.
Kip

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
Behalf Of John Goodwin
Sent: Sunday, August 12, 2012 2:15 AM
To: coco at maltedmedia.com
Subject: Re: [Coco] How to get into CoCo 6809 assembly?




OMG!
I never would have imagined I would find people talking about coding 6809E
assembler on the web. I did tons of that, expanded the BASIC programming
language, increased the floppy drive size from 35 Granuals to 40 and up the
speed of the drives from 20 ms to 5 ms. I even had the drive lights acting
like a chaser when the drives weren't active.

A pair of good books are 6809 Assembler Unravaled. They where the entire ROM
disassembled and commented so you could find the memory locations you wanted
easily. 

I still have my old COCO with it's supped up disk ROMs, expanded BASIC ROMS,
both piggy backed on switches and my old true upper/lowercase board. I still
have all 120 diskettes (Although I have nmon idea if they're still readable)
and all my program printouts, nicly tucked away in storage.

John



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