Re: A85: Scrolling

To: assembly-85 <assembly-85@lists.ticalc.org>
Subject: Re: A85: Scrolling
From: Humberto Yeverino <humberto@engr.csufresno.edu>
Date: Sat, 8 Aug 1998 20:53:13 -0700 (PDT)
Delivered-To: assembly-85-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <Pine.HPP.3.95.980808140635.23646B-100000@srv1.gbar.dtu.dk>
Reply-To: assembly-85@lists.ticalc.org


On Sat, 8 Aug 1998, Dines Christy Justesen wrote:

> 
> >You can do the same to scroll right just swap some numbers:
> >
> >ld de,FC01
> >ld hl,FC00
> >ld bc,1023
> >ldir
> 
> This wont work. The LDIR will do the following:
> 
> (FC01)=(FC00)
> (FC02)=(FC01)=(FC00)
> (FC03)=(FC02)=(FC01)=(FC00)
> .
> .
> .
> 
> You have to use LDDR and start at the end of the disp. mem, to make it
> work.
> 
> Dines
> 
Oops, I wasn't thinking...

-Humberto Yeverino Jr.

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Re: A85: Scrolling

From: Dines Christy Justesen <c958362@student.dtu.dk>

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