1 /** @file
2 AsmWriteMm4 function
3
4 Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
5 This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php.
9
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12
13 **/
14
15
16
17
18 /**
19 Writes the current value of 64-bit MMX Register #4 (MM4).
20
21 Writes the current value of MM4. This function is only available on IA32 and
22 x64.
23
24 @param Value The 64-bit value to write to MM4.
25
26 **/
27 VOID
28 EFIAPI
AsmWriteMm4(IN UINT64 Value)29 AsmWriteMm4 (
30 IN UINT64 Value
31 )
32 {
33 _asm {
34 movq mm4, qword ptr [Value]
35 emms
36 }
37 }
38