From: ZhangWeiXue <ZhangWeiXue@asdc.com.cn>
To: Linux MM <linux-mm@kvack.org>
Subject: I do not know what the code means.
Date: Mon, 14 Jun 1999 15:48:11 +0000 [thread overview]
Message-ID: <3765243A.8926786B@asdc.com.cn> (raw)
Dear all,
The following code is cut from the head.s, I do not know exactly what it
do?
If you can explain the meaning of " .long 0x00102007 " and " .fill
__USER_PGD_PTRS-1,4,0" for me,
I will appreciate deeply.
Best regards.
/*
* This is initialized to create a identity-mapping at 0-4M (for bootup
* purposes) and another mapping of the 0-4M area at virtual address
* PAGE_OFFSET.
*/
.org 0x1000
ENTRY(swapper_pg_dir)
.long 0x00102007
.fill __USER_PGD_PTRS-1,4,0
/* default: 767 entries */
.long 0x00102007
/* default: 255 entries */
.fill __KERNEL_PGD_PTRS-1,4,0
--
To unsubscribe, send a message with 'unsubscribe linux-mm my@address'
in the body to majordomo@kvack.org. For more info on Linux MM,
see: http://humbolt.geo.uu.nl/Linux-MM/
next reply other threads:[~1999-06-14 7:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-06-14 15:48 ZhangWeiXue [this message]
1999-06-14 10:31 ` I do not know what the code means Marcus Sundberg
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=3765243A.8926786B@asdc.com.cn \
--to=zhangweixue@asdc.com.cn \
--cc=linux-mm@kvack.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.