Re: A83: sprite won't clear completly

Re: A83: sprite won't clear completly

• To: Jimmy Conner <assembly-83@lists.ticalc.org>
• Subject: Re: A83: sprite won't clear completly
• From: Linus Akesson <lairfight@softhome.net>
• Date: Thu, 18 Feb 1999 20:17:44 +0100
• Delivered-To: assembly-83-outgoing@towerguard.unix.edu.sollentuna.se
• Delivered-To: assembly-83@lists.ticalc.org
• In-Reply-To: <19990218082024.15964.rocketmail@send102.yahoomail.com>
• Reply-To: assembly-83@lists.ticalc.org

On 18-Feb-99, Jimmy Conner (timagic@yahoo.com) wrote:

>BTW:  Anybody see in Sprxor

>  ld      a,(de)
>  xor     (hl) ;  <------------
>  ld      (hl),a

>  Why do you need that it you are just going to load it with 'a'?????

Who said you were going to load it with a? The routine is called Sprxor. That
means you want to xor a with the byte that already was at (hl). Right?

Linus

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| Linus Akesson                                | http://fly.to/linus.world |
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• Re: A83: sprite won't clear completly
• From: Jimmy Conner <timagic@yahoo.com>

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