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