Re: A86: check keyboard: call/jp

To: assembly-86@lists.ticalc.org
Subject: Re: A86: check keyboard: call/jp
From: rabidcow@juno.com (Joshua J Seagoe)
Date: Tue, 1 Dec 1998 16:27:26 -0800
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-86@lists.ticalc.org

but the return address says nothing about what rom page is loaded! 
that's in port 5, which is read and saved on the stack to determine which
page needs to be loaded back in when it returns.

-josh 

On Tue, 1 Dec 1998 14:48:04 -0800 Pat Milheron <pmilheron@ti.com> writes:
>
>If they were not calls then no bank info is pushed
>onto the stack, and when the routine called exectutes a
>return, page 0Dh would not be paged in when control returns
>to the ASM program.
>
>Later,
>Pat
>
>------------------
>Original text
>
>From: ComAsYuAre@aol.com, on 12/1/98 3:38 PM:
>

>does anybody have any idea why the rom page d addresses are "call xx \ 
>ret"
>when they could just be "jp xx"??
>
>

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