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e1f414b6 1/** @file\r
2 AsmReadEs function\r
3\r
373ade0e 4 Copyright (c) 2006 - 2008, Intel Corporation<BR>\r
e1f414b6 5 All rights reserved. This program and the accompanying materials\r
6 are licensed and made available under the terms and conditions of the BSD License\r
7 which accompanies this distribution. The full text of the license may be found at\r
8 http://opensource.org/licenses/bsd-license.php\r
9\r
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13**/\r
14\r
1efcc4ae 15\r
f734a10a 16\r
e1f414b6 17\r
42eedea9 18/**\r
19 Reads the current value of ES Data Segment Register (ES).\r
20\r
21 Reads and returns the current value of ES. This function is only available on\r
030cd1a2 22 IA-32 and x64.\r
42eedea9 23\r
24 @return The current value of ES.\r
25\r
26**/\r
e1f414b6 27UINT16\r
28EFIAPI\r
29AsmReadEs (\r
30 VOID\r
31 )\r
32{\r
33 __asm {\r
34 xor eax, eax\r
35 mov ax, es\r
36 }\r
37}\r
38\r