A86: Re: Titles

To: <assembly-86@lists.ticalc.org>
Subject: A86: Re: Titles
From: "JBrett" <tbarwick@esn.net>
Date: Wed, 3 Feb 1999 21:31:45 -0800
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Delivered-To: assembly-86@lists.ticalc.org
Reply-To: assembly-86@lists.ticalc.org


>How are titles done in Assembly?  Alligned sprites?  I know that for
James's
>Arkanoid, the title includes gray scale and is in string format.  How does
>this work??

No, not alligned sprites.  It is a 1024 byte picture.  Usually to display
one, you would do:
ld hl,title
ld de,$fc00
ld bc,1024
ldir
Unless you're using Pic2RLE ;-), then you would use:
ld hl,title
ld de,$fc00
call DispRLE

Now, I made James' title pic for Arkanoid.  For grayscale, you need 2 1024
byte pictures, and an IM 2 grayscale handler to reduce flicker.  For
strings, you would do:

ld hl,strname
rst $20
rst $10
jr nc,found

strname:
    .db 5,"title"

like that....
Hope this helps,
_________
JBrett
tbarwick@esn.net - http://brett.acz.org
ICQ UIN: 20607010
AIM: BarwickBJ
ACZ member - http://www.acz.org

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