Re: SIMPLE assembly question...

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#6513

From: Mike Levis
Date: Thu, 17 Dec 1992 08:50

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In article <gn#@byu.edu> $dougn@sasb.byu.edu (Douglas R. Nebeker - MIS_SAS) writes:
>
>Here is a simple one:
>
>is there ANY difference between  MOV ES,AX
>
>and                              PUSH AX
>                                 POP ES
> 
>(besides the fact that the stack pointers get moved a little)???

MOV ES,AX is faster than PUSH AX + POP ES because it does not access
memory.

>Does this affect ANY flags?

No, the general register versions of these instructions do not.

>Thanks!
>
>Douglas R. Nebeker         Internet: $dougn@sasb.byu.edu

-- 
==== Mike Levis   mlevis@ringer.cs.utsa.edu ====
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Message-ID: <1992Dec17.085056.3566@ringer.cs.utsa.edu>

Path: arc1-ca.pugleaf.net!sparky!uunet!usc!sdd.hp.com!swrinde!ringer!mlevis

References: <gn#@byu.edu>

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Newsgroups: comp.os.msdos.programmer
Path: arc1-ca.pugleaf.net!sparky!uunet!usc!sdd.hp.com!swrinde!ringer!mlevis
From: mlevis@ringer.cs.utsa.edu (Mike Levis) (OS/2)
Subject: Re: SIMPLE assembly question...
Message-ID: <1992Dec17.085056.3566@ringer.cs.utsa.edu>
Keywords: assembly mov asm 
Organization: University of Texas at San Antonio
References: <gn#@byu.edu>
Date: Thu, 17 Dec 1992 08:50:56 GMT
Lines: 27

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