Subject: Re: FPU Performance on DECstation 5000/125
To: Jonathan Stone <>
From: Simon Burge <>
List: port-pmax
Date: 08/28/1997 08:22:50
On Wed, 27 Aug 1997 04:40:10 -0700  Jonathan Stone wrote:

> The following triival program works for me, and takes almost exaclty
> one second to execute on either a 500/240 runing Ultrix, or a 5000/240
> running NetBSD 1.2G.  (You could wind up the count of flops, but there
> seems little point.)

Same goes for a /260 under Ultrix and NetBSD 1.2G.  Thinking I'd test
another FP intensive program (one that tests primality of 1,000,000+
digit numbers) I got a surprising result - it didn't even run!

vlad:~ 42> ~/bin/ultrix.mips/mersenne1 1279
/home/simonb/bin/ultrix.mips/mersenne1: 1: Syntax error: "&" unexpected
vlad:~ 43> file ~/bin/ultrix.mips/mersenne1
/home/simonb/bin/ultrix.mips/mersenne1: basic-16 executable not stripped

This program was compiled under Ultrix using the MIPS compiler with the
-mips3 option.  So I guess the ultrix emulation isn't perfect.  Is this
something I should pr?