From 92cfba7275299b70cef5f84c8f682967b5bd8e9b Mon Sep 17 00:00:00 2001
From: hailin cai <hailin.cai.neulion@gmail.com>
Date: Fri, 29 Jan 2016 10:05:46 -0500
Subject: [PATCH] Update Booting/linux-bootstrap-2md.md

---
 Booting/linux-bootstrap-2md.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Booting/linux-bootstrap-2md.md b/Booting/linux-bootstrap-2md.md
index b220b6d..c5cbb03 100644
--- a/Booting/linux-bootstrap-2md.md
+++ b/Booting/linux-bootstrap-2md.md
@@ -39,8 +39,8 @@
  
 通过这2个信息，我们可以通过下面的公式计算出对应的物理地址 
 
-```c
+```
 PhysicalAddress = Segment * 16 + Offset
 ```
 
-
+在保护模式中，内存段的定义Memory segmentation was completely redone in protected mode. There are no 64 Kilobyte fixed-size segments. Instead, the size and location of each segment is described by an associated data structure called Segment Descriptor. The segment descriptors are stored in a data structure called Global Descriptor Table (GDT).