Re: A83:STILL NEED HELP!

To: <assembly-83@lists.ticalc.org>
Subject: Re: A83:STILL NEED HELP!
From: "David Phillips" <david@acz.org>
Date: Wed, 20 Oct 1999 16:56:38 -0600
References: <380E40FA.82E5A547@firstva.com>
Reply-To: assembly-83@lists.ticalc.org


Hehe...complicated routine?  :)

 ld hl,SourceBuffer    ; where you are copying from
 ld de,TargetBuffer    ; where you want to copy to
 ld bc,768                 ; the number of bytes to copy (screen is 768
bytes)
 ldir                           ; copy all the bytes

If this is not what you meant, sorry.

>     I draw a background pic, then I write text using _vputs. This
> displays my text on top of my pic, but the text is on the screen, and
> not actually in the buffer. I then call a sprite routine that reeds and
> edits the buffer and sends it to the screen. This effectively erases the
> text by copying the buffer, which doesn't have the text, to the screen.
> I want to draw the background, write the text, and copy the screen to
> the buffer, THEN run the routine. Unfortunately I am at a loss as to how
> to copy the screen to the buffer. Is their a rom call (Please , please,
> please) or do I have to write a complicated routine that has to read
> each pixel 1 by 1?

References:

A83:STILL NEED HELP!

From: Nathan Gaylinn <NathanG@firstva.com>