A85: Contrast + More

To: assembly-85@lists.ticalc.org
Subject: A85: Contrast + More
From: GrafixxHQ <GrafixxHQ@aol.com>
Date: Thu, 26 Feb 1998 19:08:27 EST
Reply-To: assembly-85@lists.ticalc.org


How do you increase/decrease the contrast of the screen (Usgard)? 

I tried:

 ld a,CONTRAST
 inc a
 inc a
 inc a
 ld (CONTRAST),a

It didn't work.  What works?

Also, after my program (Usgard) runs and I go to the graph screen after
exiting Usgard, the stuff that was on the screen is still there.  How do I fix
that?
(I am saving to the GRAPH_MEM, and loading it into the VIDEO_MEM.

I tried:

  call CLEARLCD
  ld hl,$8641
  ld (hl),$0
  ld bc,1024-1
  call OTH_FILL
  ret


Thanxx for the help (hopefully)  :)

Follow-Ups:

Re: A85: Contrast + More

From: mgp4007@omega.uta.edu (Michael Pearce)

A85: FF85

From: Adam Geitgey <csrawebtech@qualityservice.com>

Re: A85: Contrast + More

From: Alan Bailey <bailela@charlie.cns.iit.edu>

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