Article View: comp.arch
Article #12577Re: 64-bit chips, 32-bit compatibility?
From: Paul Donahue
Date: Mon, 25 Sep 1995 20:26
Date: Mon, 25 Sep 1995 20:26
16 lines
1783 bytes
1783 bytes
In article <jgkDFG9HJ.49x@netcom.com>, Joe Keane <jgk@netcom.com> writes:
>In fact, the situation with Alpha is very similar to the current situation
>with Macintosh and 16-bit Windows programs, with the sizes doubled of course.
>You will run into the same types of problems around 2 GB on the Alpha as we
>currently run into at 32 KB with Mac and Windows programs. Of course these
>things can be fixed and they probably will be, but it's better to avoid them!
The Mac never had any 32KB problems. It used to use 24 bit addresses, but
they moved to 32 bit addresses with System 7 back in 1990 or 1991 (so the
"current situation" is about 5 years old). Maybe this is picky, but 16MB vs.
32KB is quite a huge difference (and Mac vs. Windoze is a huge difference as
well).
-Paul
Technical Details
Message-ID:
<4473ai$mm7@usenet.pa.dec.com>Path:
arc1-ca.pugleaf.net!raquet.pa.dec.com!pdonahueReferences:
<43p1g8$s24@rbdc.rbdc.com> <43srit$94b@hermes.synopsys.com> <43tada$8i6@rbdc.rbdc.com> <jgkDFG9HJ.49x@netcom.com>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!raquet.pa.dec.com!pdonahue From: pdonahue@raquet.pa.dec.com (Paul Donahue) Newsgroups: comp.arch,comp.lang.c Subject: Re: 64-bit chips, 32-bit compatibility? Date: 25 Sep 1995 20:26:58 GMT Organization: Digital Equipment Corporation Sender: pdonahue@smchip.pa.dec.com (Paul Donahue) Distribution: world Message-ID: <4473ai$mm7@usenet.pa.dec.com> References: <43p1g8$s24@rbdc.rbdc.com> <43srit$94b@hermes.synopsys.com> <43tada$8i6@rbdc.rbdc.com> <jgkDFG9HJ.49x@netcom.com> Reply-To: pdonahue@pa.dec.com NNTP-Posting-Host: smchip.pa.dec.com Keywords: word X-Newsreader: mxrn 6.18-9