Warning: mysqli::__construct(): (HY000/1203): User howardkn already has more than 'max_user_connections' active connections in D:\Inetpub\vhosts\howardknight.net\al.howardknight.net\includes\artfuncs.php on line 21
Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connections
Warning: mysqli::query(): Couldn't fetch mysqli in D:\Inetpub\vhosts\howardknight.net\al.howardknight.net\index.php on line 66
Article <jwvldww6253.fsf-monnier+comp.arch@gnu.org>
Deutsch   English   Français   Italiano  
<jwvldww6253.fsf-monnier+comp.arch@gnu.org>

View for Bookmarking (what is this?)
Look up another Usenet article 
Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: Stefan Monnier <monnier@iro.umontreal.ca>
Newsgroups: comp.arch
Subject: Re: Keeping other stuff with addresses
Date: Tue, 03 Dec 2024 13:46:01 -0500
Organization: A noiseless patient Spider
Lines: 15
Message-ID: <jwvldww6253.fsf-monnier+comp.arch@gnu.org>
References: <memo.20241128153105.12904U@jgd.cix.co.uk>
	<vijc3q$33feh$1@dont-email.me> <vilkrn$3k21l$15@dont-email.me>
	<jwvcyi87lva.fsf-monnier+comp.arch@gnu.org>
	<vini47$sgi$1@gal.iecc.com>
MIME-Version: 1.0
Content-Type: text/plain
Injection-Date: Tue, 03 Dec 2024 19:46:02 +0100 (CET)
Injection-Info: dont-email.me; posting-host="5e8f21e9800beeb82e87504d9059946a";
	logging-data="280026"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1+18dmO1VJLlwgftr1mNz2N5IZ6OiPMYDE="
User-Agent: Gnus/5.13 (Gnus v5.13)
Cancel-Lock: sha1:AeQ44ZLy0ROPdwGAG+qygrMxHIM=
	sha1:b2ALRfG5t7VJ8QzwejL+VjDbozk=
Bytes: 1780

>>> another way to steal bits is over alignment.
>>Yup.  I keep lamenting that Alpha didn't go for bit-addressed memory,
>>which would have given us 3 extra free bits from alignment (as well as
>>allowing pointers to bits and bitfields).
> I thought STRETCH persuaded people that bit addressable memory was a bad idea.

Yes, but that was a misunderstanding.  I'm not suggesting that
load/store instructions can access things at any bit position and any
bit size.  Any load or store with a pointer whose last 3 bits is not 0 would
presumably signal en error.
Just like the 21064 Alpha where they had byte-addressed memory but the
load/store instructions could only handle aligned words.


        Stefan