Re: A86: get_key

To: <assembly-86@lists.ticalc.org>
Subject: Re: A86: get_key
From: "Dux Gregis" <assets@eden.rutgers.edu>
Date: Sun, 13 Sep 1998 18:04:03 -0400
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-86@lists.ticalc.org


_getkey doesn't pause.  2nd and alpha can be detected with flags.

>
>_getkey pauses until a key is pressed.
>
>also, _getkey allows for contrast adjustment, and cannot detect the 2nd and
>alpha keys, whereas in GET_KEY, 2nd and alpha are just like any other key.
>
>
>if you want to use GET_KEY but also want to wait until a key is pressed,
use
>this subroutine when you want to get a key instead of calling GET_KEY
>
>getkey:
> call GET_KEY
> or a ;returns 0 if no key pressed
> jr z,getkey ;get another keypress
> ret
>

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