Re: A86: Re: sprites

To: assembly-86@lists.ticalc.org
Subject: Re: A86: Re: sprites
From: David Phillips <electrum@tfs.net>
Date: Tue, 19 May 1998 16:26:05 -0500
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <35611FBB.25C4182B@eden.rutgers.edu>
References: <006201bd82d2$7883f9a0$ddf3ffd0@matt> <3560F8BF.4945B4EE@eden.rutgers.edu>
Reply-To: assembly-86@lists.ticalc.org


That's cool, but what about putting 8x8 sprites ONLY (no size bytes) to
anywhere on the screen?

At 01:59 AM 5/19/98 -0400, you wrote:
>
>I figured it out ... the a reg was being destroyed.
>Feel free to use this routine, it's about 40% faster than the copy sprite
>algorithm in Trent's tutorial, and about 3 times faster than what
bioserrors just
>posted  :-)
>
>;Input = sprite size in bc, video mem location in hl, sprite location in de
>
> ld bc,8                   ;sprite size
>the_loop:
> ldi
> ret po                       ;return when bc is 0
> ld a,e
> add a,15
> ld e,a                       ;add increment to e
> jr nc,the_loop
> inc d
> jr the_loop
>
>


// David Phillips
// mailto:electrum@tfs.net
// AIM: electrum32

References:

Re: A86: Re: sprites

From: "Matt2000" <matt2000@gte.net>

Re: A86: Re: sprites

From: Dux Gregis <assets@eden.rutgers.edu>

Re: A86: Re: sprites

From: Dux Gregis <assets@eden.rutgers.edu>