amos@nsc.nsc.com (Amos Shapir) (02/14/90)
In article <1926@l.cc.purdue.edu> cik@l.cc.purdue.edu (Herman Rubin) writes: > >It is frequently the case that very long loops can be unrolled. One has to be careful not to unroll too much, since that can lead to unnecessary paging. >Thus, code written by a human can easily translate >into 2^20 or more instructions. This is exactly my point: We have barely scratched the surface of 32-bit instruction space; 64-bit (or even 48) would probably never be needed (certainly not within the same time frame of 64-bit data space, anyway). -- Amos Shapir National Semiconductor, 2900 semiconductor Dr. Santa Clara, CA 95052-8090 Mailstop E-280 amos@nsc.nsc.com or amos@taux01.nsc.com