CloverBootloader/MdePkg/Library/BaseLib/Ia32/ReadMm5.c

37 lines
554 B
C
Raw Normal View History

/** @file
AsmReadMm5 function
Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
/**
Reads the current value of 64-bit MMX Register #5 (MM5).
Reads and returns the current value of MM5. This function is only available
on IA-32 and x64.
@return The current value of MM5.
**/
UINT64
EFIAPI
AsmReadMm5 (
VOID
)
{
_asm {
push eax
push eax
movq [esp], mm5
pop eax
pop edx
emms
}
}