CGA graphics

From: Lawrence Walker <lgwalker_at_look.ca>
Date: Fri Aug 11 14:27:41 2000

 
> Hi,
>
> Does somebody here know the formulas for calculating the offsets and
> bits in the CGA memory? Or maybe a quick routine for plotting a pixel?
> The BIOS routine sure seems SLOW to me. I'm experimenting with these
> older machines, so I'm working a little with these cool graphics
> cards! (The CGA is great! Well, I LOVE IT! :-) )
>
> Ciao,
>
> Lionel
>
>
 You might see if you can find "A Programmers Guide to PC &
PS/2 Systems" Richard Wilton ,published by M-S Press. Came out
in 1987 and received rave reviews in all the trade publications. It
has ass. routine listings to access BIOS for CGA thru VGA and a
wealth of other info on the varios Dos video systems.

ciao larry

lgwalker_at_look.ca
walkers_at_altavista.net
bigwalk_at_xoommail.com
Received on Fri Aug 11 2000 - 14:27:41 BST