Sujet : Re: Keeping other stuff with addresses (was: What is an N-bit machine?)
De : anton (at) *nospam* mips.complang.tuwien.ac.at (Anton Ertl)
Groupes : comp.archDate : 30. Nov 2024, 12:35:36
Autres entêtes
Organisation : Institut fuer Computersprachen, Technische Universitaet Wien
Message-ID : <2024Nov30.123536@mips.complang.tuwien.ac.at>
References : 1 2 3 4
User-Agent : xrn 10.11
anton@mips.complang.tuwien.ac.at (Anton Ertl) writes:
John Levine <johnl@taugh.com> writes:
These days I'd say the relevant N is the size of arithmetic registers but a
lot of marketers appear to disagree with me.
>
Which arithmetic registers on an Intel processor? The 64 bits of a
GPR? The 128 bits of an XMM register? The 256 bits of a YMM
register? The 512 bits of a ZMM register?
The Cray-1 is even more interesting in that respect. Is it a 4096-bit
machine? I think there are also vector machines where you can
configure N bits into more shorter or fewer longer registers.
- anton
-- 'Anyone trying for "industrial quality" ISA should avoid undefined behavior.' Mitch Alsup, <c17fcd89-f024-40e7-a594-88a85ac10d20o@googlegroups.com>