Re: LZ: Me agian Same Problem

Re: LZ: Me agian Same Problem

• Subject: Re: LZ: Me agian Same Problem
• From: barrym <barrym@neosoft.com>
• Date: Sat, 28 Sep 1996 08:36:23 -0500 (CDT)
• In-Reply-To: <324C723D.6A7A@mw.sisna.com>

On Fri, 27 Sep 1996, Alan Bailey wrote:


> barrym wrote:


> > Is that 168 bytes always available?  What is it's normal use, if any?
> 
> It's always for use in a zshell program.  In the regular TI-os, it 
> contains the ti-ascii codes for the characters on the screen.           
> (21 columns * 8 rows=168 bytes)  
> When you do a ROM_CALL(D_ZT_STR), It displays the character, but doesn't 
> update the text memory.  You'll notice that when you first backup with 
> zshell40.zip(the one with texan and organize), the screen says welcome to 
> zshell or something.  This is just bacause the characters of the screen 
> are stored in the text memory in the backup.  Also, there is a secondary 
> text memory, to store a second screen, but I don't remember the exact 
> location.  Both of them are usable in a zs program because zs resets the 
> screen before it exits.


Thanks for the explanation.


Barry

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