From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from asdc.com.cn ([9.196.36.117]) by ultra.asdc-beijing.com (Netscape Mail Server v2.02) with ESMTP id AAA13381 for ; Mon, 14 Jun 1999 15:37:01 +0800 Message-ID: <3765243A.8926786B@asdc.com.cn> Date: Mon, 14 Jun 1999 15:48:11 +0000 From: ZhangWeiXue Reply-To: ZhangWeiXue@asdc.com.cn MIME-Version: 1.0 Subject: I do not know what the code means. Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Linux MM List-ID: 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/