Re: A83: Noprogs

To: assembly-83@lists.ticalc.org
Subject: Re: A83: Noprogs
From: Ian Graf <ian_graf@geocities.com>
Date: Wed, 18 Nov 1998 22:20:33 -0800
Delivered-To: assembly-83-outgoing@towerguard.unix.edu.sollentuna.se
References: <19981118230008.44114568B4@towerguard.unix.edu.sollentuna.se>
Reply-To: assembly-83@lists.ticalc.org


>  I was wondering if you could explain how the storing of the first
>letter of the names is done in your "noprogs" program.  It looks kinda
>interesting and it would help me out a lot.  I tried a modification of
>it but couldn't get it to work.

that code extracts the character from the character table and renames
the program. the character table works like this. when you hide a
program, the first character in the name is changed to a '(' and
appended to the end of the character table (the end is marked by a null
byte, 0). when you protect show (unhide) a program the first character
of the name is extracted from the start of the table and the table is
shrunk down. it is a pretty complex, but it is really as simple as first
in first out (yes i know it's actually LIFO, but not in this case).

References:

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