From 1760cf81e4b1847c6823ea3514a78dd120e19b6e Mon Sep 17 00:00:00 2001 From: Guo Mang Date: Thu, 22 Dec 2016 15:57:14 +0800 Subject: MdePkg: Move to new location Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Guo Mang --- Core/MdePkg/Library/BaseLib/Ia32/WriteDr7.c | 37 +++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Core/MdePkg/Library/BaseLib/Ia32/WriteDr7.c (limited to 'Core/MdePkg/Library/BaseLib/Ia32/WriteDr7.c') diff --git a/Core/MdePkg/Library/BaseLib/Ia32/WriteDr7.c b/Core/MdePkg/Library/BaseLib/Ia32/WriteDr7.c new file mode 100644 index 0000000000..d465dc2e33 --- /dev/null +++ b/Core/MdePkg/Library/BaseLib/Ia32/WriteDr7.c @@ -0,0 +1,37 @@ +/** @file + AsmWriteDr7 function + + Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
+ This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php. + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +/** + Writes a value to Debug Register 7 (DR7). + + Writes and returns a new value to DR7. 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 Dr7. + + @return The value written to Debug Register 7 (DR7). + +**/ +UINTN +EFIAPI +AsmWriteDr7 ( + IN UINTN Value + ) +{ + _asm { + mov eax, Value + mov dr7, eax + } +} + -- cgit v1.2.3