mirror of https://github.com/acidanthera/audk.git
45 lines
983 B
C
45 lines
983 B
C
/** @file
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AsmReadMm4 function
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Copyright (c) 2006 - 2007, Intel Corporation<BR>
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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//
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// Include common header file for this module.
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//
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/**
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Reads the current value of 64-bit MMX Register #4 (MM4).
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Reads and returns the current value of MM4. This function is only available
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on IA-32 and X64.
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@return The current value of MM4.
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**/
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UINT64
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EFIAPI
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AsmReadMm4 (
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VOID
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)
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{
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_asm {
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push eax
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push eax
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movq [esp], mm4
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pop eax
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pop edx
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emms
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}
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}
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