1 /** @file
2   AsmReadMm0 function
3 
4   Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
5   SPDX-License-Identifier: BSD-2-Clause-Patent
6 
7 **/
8 
9 
10 
11 
12 /**
13   Reads the current value of 64-bit MMX Register #0 (MM0).
14 
15   Reads and returns the current value of MM0. This function is only available
16   on IA-32 and x64.
17 
18   @return The current value of MM0.
19 
20 **/
21 UINT64
22 EFIAPI
AsmReadMm0(VOID)23 AsmReadMm0 (
24   VOID
25   )
26 {
27   _asm {
28     push    eax
29     push    eax
30     movq    [esp], mm0
31     pop     eax
32     pop     edx
33     emms
34   }
35 }
36 
37