Re: A86: check keyboard

To: assembly-86@lists.ticalc.org
Subject: Re: A86: check keyboard
From: rabidcow@juno.com (Joshua J Seagoe)
Date: Tue, 1 Dec 1998 16:34:15 -0800
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-86@lists.ticalc.org


most of the places that it uses jp also use an alternate routine that
doesn't return the original page.  these are places where using call/ret
would crash.

-josh

>>
>>does anybody have any idea why the rom page d addresses are "call xx 
>\ ret"
>>when they could just be "jp xx"??
>
>Perhaps so that it forces page $0d to be swapped back?  TI obviously 
>knew it
>could use jp because the are many places on page $0d where it uses 
>that in
>place of calls.
>
>

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