[Coco] Book question

[William Astle]

On 2013-10-07 09:06, Frank Pittel wrote:
> Personally I would load vcc and edtasm along with the PDFs onto the laptop I would be
> bringing and start with the Barden book. If you're already familiar with assembly you'll
> find that it starts out a bit slow but is a very good book for learning 6809 assembly with.
> If you start with it and work the examples and excercises you'll have a good understanding
> of 6809 assembly.

I second Frank's recommendation.

Barden's book is an excellent tutorial on 6809 programming presented in 
a logical manner.

The Leventhal book is excellent as a reference on the 6809 instruction 
set and some more advanced concepts but I found a lot of it quite 
confusing in general. It will generally make more sense once you already 
know the material, a common failing for that sort of thing. The 
reference chapter and the appendixes are very useful, though. Also, it 
has a good section on overall software design that is worth reading.

Once you get going, you'll want the "6x09 Instruction Sets" document 
available at cococoding.com too. It's an extensive reference on the 6809 
and 6309 instruction set done similarly to the reference section in 
Leventhal.

As someone else has also mentioned, the Unravelled series is worth a 
look too (also at cococoding.com). It will give you some ideas what you 
can do with real code though some of the routines in the ROM are pretty 
difficult to follow due to weird optimizations, etc.