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Subject: Re: Shifting... (OT)

Author: Gian-Carlo Pascutto

Date: 02:36:39 01/25/01

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On January 25, 2001 at 05:30:23, David Rasmussen wrote:

>Is binary shifting a constant time instruction on most platforms, or does it
>generally depend on how many times you shift?

On machines with a barrel shifter it is constant time. On the crap
the doesn't have one it is dependant on the shift count.

P4 is the only machine in use today that doesn't have one AFAIK.

--
GCP



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