Message-Id:	<3.0.6.32.19990203220718.00868be0@pop.netaddress.com>
X-Sender:	pderbysh AT pop DOT netaddress DOT com
X-Mailer:	QUALCOMM Windows Eudora Light Version 3.0.6 (32)
Date:	Wed, 03 Feb 1999 22:07:18 -0500
To:	djgpp AT delorie DOT com
From:	Paul Derbyshire <pderbysh AT usa DOT net>
Subject:	Re: 64-bit integer math
In-Reply-To:	<199902030410.XAA14741@envy.delorie.com>
References:	<3 DOT 0 DOT 6 DOT 32 DOT 19990202215520 DOT 009449d0 AT pop DOT netaddress DOT com>
	<3 DOT 0 DOT 6 DOT 32 DOT 19990202172139 DOT 00921a20 AT pop DOT netaddress DOT com>
	<3 DOT 0 DOT 6 DOT 32 DOT 19990202150512 DOT 0090dc30 AT pop DOT netaddress DOT com>
	<3 DOT 0 DOT 6 DOT 32 DOT 19990202125723 DOT 00904370 AT pop DOT netaddress DOT com>
	<Pine DOT GSO DOT 4 DOT 02 DOT 9902012103100 DOT 16025-100000 AT neptune DOT calstatela DOT edu>
	<3 DOT 0 DOT 6 DOT 32 DOT 19990202125723 DOT 00904370 AT pop DOT netaddress DOT com>
	<3 DOT 0 DOT 6 DOT 32 DOT 19990202150512 DOT 0090dc30 AT pop DOT netaddress DOT com>
	<3 DOT 0 DOT 6 DOT 32 DOT 19990202172139 DOT 00921a20 AT pop DOT netaddress DOT com>
	<3 DOT 0 DOT 6 DOT 32 DOT 19990202215520 DOT 009449d0 AT pop DOT netaddress DOT com>
Mime-Version:	1.0
Reply-To:	djgpp AT delorie DOT com

At 11:10 PM 2/2/99 -0500, you wrote:
>
>> >gcc does 64-bit multiplies with one mul, two imuls, and two adds.
>> 
>> How's a plain mul and an imul differ? :-)
>
>mul is unsigned
>imul is signed

Oh. Thanks. :-)
-- 
   .*.  "Clouds are not spheres, mountains are not cones, coastlines are not
-()  <  circles, and bark is not smooth, nor does lightning travel in a
   `*'  straight line."    -------------------------------------------------
        -- B. Mandelbrot  |http://surf.to/pgd.net
_____________________ ____|________     Paul Derbyshire     pderbysh AT usa DOT net
Programmer & Humanist|ICQ: 10423848|

- Raw text -