monitor tweaking

[Jim Leonard]

Chuck Guzis wrote:
> On 11/28/2005 at 6:48 AM Chris M wrote:
> When the PC was still young, there were quite a few machines around with
> Hercules -compatible mono displays that wouldn't run CGA games.  I came up
> with a program called SIMCGA that used a small timer-driven TSR to

Didn't that slow things down quite a lot?

My solution was to reprogram HGC horizontal clock so that it was 640 pixels 
displayed and 400 lines down -- no copying needed :-)

I concur, most monitors handled it well (although one I had the misfortune of 
working with produced a nearly ultrasonic "whine" when operating in this mode)
-- 
Jim Leonard (trixter at oldskool.org)                    http://www.oldskool.org/
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