RE: A83: ASM83-or-ASM89???


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RE: A83: ASM83-or-ASM89???




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You are absolutely correct. Because the screen is not capable of
hardware grayscale, we use an interrupt to flash the pixel so it
'seems' to be a shade of gray



Michael Bryan Cook
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On Sunday, October 18, 1998 4:07 PM, Raisinboy5@aol.com
[SMTP:Raisinboy5@aol.com] wrote:
> 
> This may be a little OT, but I was wondering how grayscale was
accomplished on
> calculators, is it just turning the pixel on and off quickly, or is
it
> something more complex than that?
> 
> -Thanks
> 
> In a message dated 98-10-18 17:25:34 EDT, you write:
> 
> << I was just wondering what anyone thinks or knows about assembly
for the 89.
> I
>  heard it was a lot easier than 83 asm. I might buy one for that
reason, and
> it
>  has grayscale!
>  But the 83 was what I started out on...should I leave the 83 and
get the
> newer
>  better calc or stay with 83? Suggestions anyone?
>  
>  -Michael
>   >>
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