Author: Gerd Isenberg
Date: 15:18:53 09/21/03
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On September 21, 2003 at 15:17:29, Omid David Tabibi wrote: >On September 21, 2003 at 08:45:23, Gerd Isenberg wrote: > >>Interesting articles in german's magazin c't about 64-bit processors: >> >>"The big waste" - even with 32-bit processors, more than 50% of all cache- and >>memory resources are wasted for the sign-bit [1]. > >Wouldn't a heavy use of unsigned type variables (whenever possible) alleviate >this problem? > > It is not the sign bit per se, but sign extensions as well as zero extensions for unsigned. E.g. for unsigned int square 0..0x3f (6bits) 10,26 or 58 leading zero bits for 16,32 or 64 bit.
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