Computer Chess Club Archives




Subject: Re: Matt Taylor's magic de Bruijn Constant

Author: Dieter Buerssner

Date: 15:33:51 07/13/03

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On July 13, 2003 at 06:03:00, Gerd Isenberg wrote:

>Why are the unsigned multiplications translated to "imul" by the compiler?

Isn't it the same? You only use the lower 32 bits of the result (otherwise mul
would be needed). Imul gives the compiler much more freedom in register usage.


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