[Coco] Artifacting on LCD?

[John W. Linville]

On Fri, Apr 10, 2009 at 12:42:48PM -0600, J.P. Samson wrote:
> On Apr 10, 2009, at 12:16 PM, Christian Lesage wrote:
>> Jim Hickle wrote:
>>> I think all it did was change from PMODE 4 to PMODE 3.
>>>
>>> I was referring to machine language programs. I found what I was  
>>> looking for. It's a program written by Steve Ostrom, that was  
>>> published in the Rainbow in February 1988.
>
> Spectral Associates released a program called "RGB Patch" at the  
> beginning of 1987 that did a similar thing.  It was a memory-resident  
> utility that you'd load up first.  Subsequently, you'd load up your  
> assembly-language application (e.g. game) and then run it as per normal.  
> The authors claimed the on-the-fly patching worked with 90% of 
> applications, even copy-protected ones.

Anyone know how that worked?  Was it hooked into an interrupt routine
so that it would automatically adjust the video mode and palette?

John
-- 
John W. Linville		Someday the world will need a hero, and you
linville at tuxdriver.com			might be all we have.  Be ready.