Re: A83: invert part of screen

To: assembly-83@lists.ticalc.org
Subject: Re: A83: invert part of screen
From: Chris DC <dreamcast_84@yahoo.com>
Date: Sat, 22 Jan 2000 13:14:38 -0800 (PST)
Reply-To: assembly-83@lists.ticalc.org

do you mean like text?  If so it's very easy.
the command is:
set textInverse, (iy+textflags) 
now all the text displayed will be white with a black
box around it.  To stop all the text after that from
being inverted the command would be:
res textInverse, (iy+textflags)

Here is an example:

 call _clrLCDFull

  set textInverse, (iy+textflags) ; Sets inverse.

  ld hl,0000h

  ld (CURCOL),hl

  ld hl,str1

  call _vputs

  res textInverse, (iy+textflags) ; Resets inverse.

  ld hl,0100

  ld (CURCOL),hl

  ld hl,str2

  call _puts

  ret

str1:

  .db "Inverse Text.",0

str2:

  .db "Normal Text.   ",0

.end

I hope I helped you.

--- "Fam. Engelen" <engelen@hotpop.com> wrote:
> What would be the fastest/best way to invert a
> (variable) part of the screen (a box with something
> in it, for making a menu)?
> 
> Arnout
> arnout.engelen@beer.com
> 

=====
- And the gods opened up the heavens, and only one stood forth.  That one was Chris...
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Follow-Ups:

Re: A83: invert part of screen

From: "James Matthews" <jjj@matthewsfamily.fsnet.co.uk>

Re: A83: invert part of screen

From: Scott Dial <wrath@calc.org>

Re: A83: invert part of screen

From: "Fam. Engelen" <engelen@hotpop.com>