From: "H. Peter Anvin" <hpa@transmeta.com>
To: Rogier Wolff <R.E.Wolff@BitWizard.nl>
Cc: "H. Peter Anvin" <hpa@zytor.com>, linux-kernel@vger.kernel.org
Subject: Re: Linux Post codes during runtime, possibly OT
Date: Sun, 28 Jan 2001 02:18:19 -0800 [thread overview]
Message-ID: <3A73F1EB.B6F69A93@transmeta.com> (raw)
In-Reply-To: <200101281012.LAA04278@cave.bitwizard.nl>
Rogier Wolff wrote:
>
> Ok. I've thought about it some more, but I don't care enough about
> this issue to do the painstaking legwork: I don't have one of those
> POST-code indicators on port 0x80.
>
> I've made the "pause" in outb_p just a few (*) ns slower, because it
> now loads a variable before outputting the value to port 0x80. As the
> whole idea about this is "pausing", making it a bit slower shouldn't
> matter too much. I've tested it: It compiles, it boots.
>
> I'm not too familar with the syntax of the "asm" statement. So I may
> illegally be modifying the AX register. I don't care enough about this
> to figure it out right now.
>
It is; you'd have to specify "eax" as a clobber value, and that is
undesirable.
And you're still overwriting the POST value written by the BIOS.
-hpa
--
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/
next prev parent reply other threads:[~2001-01-28 10:19 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-25 21:46 Linux Post codes during runtime, possibly OT Ian S. Nelson
2001-01-25 22:26 ` H. Peter Anvin
2001-01-25 22:31 ` Matthew Dharm
2001-01-25 22:32 ` H. Peter Anvin
2001-01-25 22:41 ` Matthew Dharm
2001-01-25 22:45 ` H. Peter Anvin
2001-01-25 23:08 ` Richard B. Johnson
2001-01-25 23:10 ` H. Peter Anvin
2001-01-26 13:58 ` Richard B. Johnson
2001-01-26 16:19 ` H. Peter Anvin
2001-01-26 17:54 ` David Welch
2001-01-29 2:35 ` Paul Gortmaker
2001-01-27 10:20 ` Rogier Wolff
2001-01-27 20:47 ` H. Peter Anvin
2001-01-27 21:01 ` Rogier Wolff
2001-01-27 21:24 ` H. Peter Anvin
2001-01-28 10:12 ` Rogier Wolff
2001-01-28 10:18 ` H. Peter Anvin [this message]
2001-01-28 11:03 ` Rogier Wolff
2001-01-28 17:22 ` Jamie Lokier
2001-01-28 22:34 ` Pavel Machek
2001-01-29 15:09 ` Richard B. Johnson
2001-01-29 19:21 ` H. Peter Anvin
2001-01-28 22:29 ` Pavel Machek
2001-01-30 17:44 ` Mark H. Wood
2001-01-30 18:10 ` Richard B. Johnson
2001-01-30 18:16 ` mirabilos
2001-01-30 18:36 ` Richard B. Johnson
2001-01-30 18:41 ` mirabilos
-- strict thread matches above, loose matches on Subject: below --
2001-01-26 15:41 Petr Vandrovec
2001-01-26 15:07 ` Richard B. Johnson
2001-01-26 15:15 ` Mark Hahn
2001-01-26 15:31 ` Jamie Lokier
2001-01-26 16:03 ` Richard B. Johnson
2001-01-26 16:22 ` Jamie Lokier
2001-01-26 15:42 Manfred Spraul
2001-01-26 16:07 ` Richard B. Johnson
2001-01-26 16:33 ` Brian Gerst
2001-01-27 12:28 ` Pavel Machek
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=3A73F1EB.B6F69A93@transmeta.com \
--to=hpa@transmeta.com \
--cc=R.E.Wolff@BitWizard.nl \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.