Newsgroups: comp.arch
Path: utzoo!utgpu!watserv1!watdragon!rose.waterloo.edu!ccplumb
From: ccplumb@rose.waterloo.edu (Colin Plumb)
Subject: Re: H1 details?
Message-ID: <1991Apr26.053510.19231@watdragon.waterloo.edu>
Sender: news@watdragon.waterloo.edu (News Owner)
Organization: University of Waterloo
References: <1991Apr25.185728.1306@britesun.radig.de>
Date: Fri, 26 Apr 1991 05:35:10 GMT
Lines: 11

vhs@britesun.radig.de (Volker Herminghaus-Shirai) wrote:
>It also states that they can execute a maximum of eight instructions at once

I haven't even seen it, but I'll bet money that what they mean is one
instruction and seven prefixes.  On the trasnputer, all the instructions
have a 4-bit operand field.  Larger operands are built up using prefix
instructions, which add their 4-bit operand field to the next "real"
instruction.  Pushing this past one per cycle is pretty crucial to good
performance.  I doubt they do more than one "real" instruction per cycle.
-- 
	-Colin