CloverBootloader/MdePkg/Library/BaseLib/Ia32/WriteDr0.c
2019-09-03 12:58:42 +03:00

32 lines
611 B
C

/** @file
AsmWriteDr0 function
Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
/**
Writes a value to Debug Register 0 (DR0).
Writes and returns a new value to DR0. This function is only available on
IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.
@param Value The value to write to Dr0.
@return The value written to Debug Register 0 (DR0).
**/
UINTN
EFIAPI
AsmWriteDr0 (
IN UINTN Value
)
{
_asm {
mov eax, Value
mov dr0, eax
}
}