[Coco] Let's figure out the best method to compile sprites for the CoCo - Please add your input

Glen Hewlett glen.hewlett at sympatico.ca
Fri May 12 21:24:52 EDT 2017


Hi Darren,

That’s a great idea, so simple and sweet, now I don’t have to change my code.  Thanks for the tip…. Just saved 2 bytes and 4 CPU cycles, and hours of my time.  :)

Thanks,
Glen

> On May 12, 2017, at 8:51 PM, Darren A <mechacoco at gmail.com> wrote:
> 
> On Fri, May 12, 2017 at 6:22 PM, Glen Hewlett <glen.hewlett at sympatico.ca>
> wrote:
> 
>> If I setup U as my pointer ahead of time before I call the sprite routine
>> I can remove the LEAU    ,X instruction on the first line and save another
>> 4 cycles and two bytes.
>> 
>> 
> Can't you remove that first LEAU ,X  anyway?
> 
> Instead of:
>  LEAU    ,X
>  LEAU    5+128*5,U
> 
> just use:
>  LEAU    5+128*5,X
> 
> 
> - Darren
> 
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