Newsgroups: comp.arch
Path: utzoo!henry
From: henry@utzoo.uucp (Henry Spencer)
Subject: Re: The & (address) operator and register allocation
Message-ID: <1988Dec6.174900.23465@utzoo.uucp>
Organization: U of Toronto Zoology
References: <1224@cps3xx.UUCP> <1988Dec3.221843.28966@utzoo.uucp> <1586@nmtsun.nmt.edu>
Date: Tue, 6 Dec 88 17:49:00 GMT

In article <1586@nmtsun.nmt.edu> dieter@titan.nmt.edu (The Demented Teddy Bear) writes:
>> The original Berkeley RISC design had registers with addresses, carefully
>> set up in such a way that you could pass pointers to them around freely....
>> I don't know of anybody commercial who's copied this idea.
>
>Umm, Henry, doesn't a PDP-10 count?  ...

It didn't copy it from the Berkeley RISC, though. :-) :-)

Note also Guy Harris's comments on why "freely" is a dubious word for the
PDP-10 scheme.
-- 
SunOSish, adj:  requiring      |     Henry Spencer at U of Toronto Zoology
32-bit bug numbers.            | uunet!attcan!utzoo!henry henry@zoo.toronto.edu