From: cowan@mercury.ccil.org (John Cowan)
Subject: [TUHS] Bryan Cantrill on bfs & ta
Date: Fri, 19 Oct 2012 16:54:28 -0400 [thread overview]
Message-ID: <20121019205428.GD6410@mercury.ccil.org> (raw)
In-Reply-To: <F4B07803-8CC0-4EF8-9668-878B4CAE0B0E@ccc.com>
Clem Cole scripsit:
> the 68000 and 68010 were 16 bit internals. ie a 16 bit barrel shifter
> and it took 2 ticks to perform 32 bit ops. a natural int was indeed
> 16 bits in the base registers although they also could be used as
> 32 bit registers (2 ticks ) so some 68k compilers defined int as 16
> others as 32 (more in a minute). it technically was LP32 not ILP32
Sounds like the 8088, which used an 8-bit bus but 16-bit registers
and operations.
--
John Cowan <cowan at ccil.org> http://www.ccil.org/~cowan
Sir, I quite agree with you, but what are we two against so many?
--George Bernard Shaw,
to a man booing at the opening of _Arms and the Man_
next prev parent reply other threads:[~2012-10-19 20:54 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-18 22:51 Sevan / Venture37
2012-10-18 23:40 ` Greg 'groggy' Lehey
2012-10-19 20:44 ` Clem Cole
2012-10-19 20:54 ` John Cowan [this message]
2012-10-19 22:13 ` Peter Jeremy
2012-10-22 0:33 ` Larry McVoy
2012-10-22 13:01 ` A. P. Garcia
2012-10-22 13:34 ` Larry McVoy
2012-10-22 14:05 ` A. P. Garcia
2012-10-22 14:13 ` Larry McVoy
2012-10-22 14:17 ` A. P. Garcia
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20121019205428.GD6410@mercury.ccil.org \
--to=cowan@mercury.ccil.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).