Xref: utzoo comp.lang.c++:2171 comp.lang.c:14469 comp.lang.forth:709 comp.lang.fortran:1576 comp.lang.misc:2261 Path: utzoo!utgpu!watmath!clyde!att!rutgers!mailrus!nrl-cmf!ames!amdahl!uunet!vsi!friedl From: friedl@vsi.COM (Stephen J. Friedl) Newsgroups: comp.lang.c++,comp.lang.c,comp.lang.forth,comp.lang.fortran,comp.lang.misc Subject: Re: Assembly or .... Summary: Why do they do this? Message-ID: <960@vsi.COM> Date: 1 Dec 88 14:06:14 GMT References: <1388@aucs.UUCP> <729@convex.UUCP> <1961@crete.cs.glasgow.ac.uk> <1988Nov29.181235.23628@utzoo.uucp> Organization: V-Systems, Inc. -- Santa Ana, CA Lines: 16 In article <1988Nov29.181235.23628@utzoo.uucp>, henry@utzoo.uucp (Henry Spencer) writes: > Alas, if you buy your newer faster CPUs from Motorola or Intel, they can't > tell you how many cycles each instruction takes! Why is this? When I was hacking on the VAX, nobody could ever tell me how long anything took, and empirical measurements were pretty tedious. Is it laziness on the vendor's part or are there good reasons for this? Steve -- Stephen J. Friedl 3B2-kind-of-guy friedl@vsi.com V-Systems, Inc. attmail!vsi!friedl Santa Ana, CA USA +1 714 545 6442 {backbones}!vsi!friedl ---------Nancy Reagan on cutting the grass: "Just say mow"--------