[Coco] Optimizing 6809 Assembly Code: Part 1 – Quick and Easy Changes to Speedup Your Code

[Glen Hewlett]

Hi Joel,

Thanks for the tips, I just posted part 2 and I go over indexed addressing.  If you think I’ve missed something please let me know and I’ll definitely add it.  I want this series of blogs to have all the 6809 optimizing tricks anyone can think of.  A guide for anyone to reference.

Cheers,
Glen
> On Sep 15, 2017, at 8:06 PM, Joel Rees <joel.rees at gmail.com> wrote:
> 
> wordpress wants me to log in and I don't want to look up my password, so
> I'll comment here.
> 
>     Even more speed and space are saved when using
>     *indexed* LDA or STB and STA or STB changed to
>     LDD or STD as:
> 
> I'd say something like
> 
>     ... when accessing adjacent bytes in memory ...
> 
> since the "indexability" of a record in memory is something of a broader
> topic.
> 
> I'd have more comments, but I'm not sure where you're headed.
> 
> 2017/09/16 7:33 "Glen Hewlett" <glen.hewlett at sympatico.ca>:
>> 
>> Hi All,
>> 
>> I just posted Part 1 of a series of blogs about optimizing your assembly
> language programs. If you are into 6809 assembly programming I encourage
> you to check it out.
>> 
>> 
> https://nowhereman999.wordpress.com/2017/09/14/optimizing-6809-assembly-code-part-1-quick-and-easy-changes-to-speedup-your-code/
>> 
>> Cheers,
>> Glen
>> 
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