[Coco] CoCo 3 HPRINT - POKE to change background?

[Rob Rosenbrock]

THIS is why I’ve always believed that these 8 bit machines are still superior to any of the 64 bit computers of today. The very fact that there are so many ways to make a program work so efficiently at doing exactly what you want it to do by knowing exactly what the processor is doing

Sent from my iPad

> On Jan 14, 2023, at 1:29 AM, Robert Emery via Coco <coco at maltedmedia.com> wrote:
> 
> Might also have been RGBDOS... I used both I think, and then HDB-DOS.
> 
> My notes are in Color FOG Unraveled. I used a lot of tricks to get the most
> out of basic.
> 
> 
> On Fri, Jan 13, 2023, 9:00 PM Allen Huffman via Coco <coco at maltedmedia.com>
> wrote:
> 
>>> On Jan 13, 2023, at 8:58 PM, Robert Emery via Coco <coco at maltedmedia.com>
>> wrote:
>>> 
>>> ISTR I used Alan DeKok's Custom Color Basic (RSDOS overlay) to accomplish
>>> this, as it allows a massive speed improvement to basic programming when
>>> you can control HPRINT's clearing behavior.
>>> 
>>> Sometimes you want it, sometimes you don't.
>> 
>> 
>> I don’t *think* I knew about that one. I expect there was a POKE I used
>> that changed the OR into an AND or something so it didn’t blend with the
>> background.
>> 
>> --
>> Allen Huffman - PO Box 7634 - Urbandale IA 50323 - 515-999-0227 (vmail/TXT
>> only)
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>> 
>> 
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