Message-ID: <19990715230735.16118@atrey.karlin.mff.cuni.cz>
Date: Thu, 15 Jul 1999 23:07:35 +0200
From: Jan Hubicka <hubicka AT atrey DOT karlin DOT mff DOT cuni DOT cz>
To: pgcc AT delorie DOT com
Subject: Re: calling functions
References: <3 DOT 0 DOT 32 DOT 19990715013633 DOT 010d9ab0 AT pop DOT xs4all DOT nl> <14221 DOT 16161 DOT 37716 DOT 619890 AT lrz DOT de>
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In-Reply-To: <14221.16161.37716.619890@lrz.de>; from Eugene Leitl on Wed, Jul 14, 1999 at 06:56:11PM -0700
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> Vincent Diepeveen writes:
>  > Good morning,
>  > 
>  > Reading through the ia-64 technical manual the merced 
>  > seems to have many registers:
>  
> The downside of having many registers is of course the need to save a
> lot of state when the need to switch context arises.
As I remember, IS-64 contains sparc-like register windows. If implemented
well, the OS will not have to store all the registers on context
switch, just current window...

Honza