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Re: i am working with mmx

From: James E Wilson <wilson at specifixinc dot com>
To: Ankit Jain <ankitjain1580 at yahoo dot com>
Cc: gcc at gcc dot gnu dot org
Date: Sun, 01 Aug 2004 16:33:00 -0700
Subject: Re: i am working with mmx
References: <20040730063538.79391.qmail@web52907.mail.yahoo.com>

Ankit Jain wrote:

well if i have loaded the register mm0 with 8, 8 byte
values and want to extract just the 5 th byte then i
am not able t odo so

This is a list for discussing gcc, not for explaining how to write programs. You might get better help from gcc-help.

Try looking at an x86 architecture manual to see what instructions are available. Also, look at the *mm*.h header files that gcc installs. These have a bunch of helper functions you can use to get individual mmx/sse/etc instructions emitted. -- Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com

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