Re: A89: Starting out assembly, need help

To: assembly-89@lists.ticalc.org
Subject: Re: A89: Starting out assembly, need help
From: Daniel7073@aol.com
Date: Mon, 7 Dec 1998 18:55:03 EST
Delivered-To: assembly-89-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-89@lists.ticalc.org


In a message dated 12/4/98 8:13:39 PM Pacific Standard Time, TurboSoft@aol.com
writes:

<< Well wouldn't the subroutine in the library have to pop the values back
from
 the register to get to the data?  And if this is true, why does the stack
have
 to be set back to where it was sometime after the function? >>

No, the subroutine access the data like this:
move d0, 2(a7)
This would put the last word pushed on the stack into d0 _without_ removing
it.  Like I said, C dictates that the caller resets the stack to normal.

Daniel Imfeld

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