diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/Ia32/ReadDr6.c')
-rw-r--r-- | MdePkg/Library/BaseLib/Ia32/ReadDr6.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/Ia32/ReadDr6.c b/MdePkg/Library/BaseLib/Ia32/ReadDr6.c new file mode 100644 index 000000000000..da0496531996 --- /dev/null +++ b/MdePkg/Library/BaseLib/Ia32/ReadDr6.c @@ -0,0 +1,38 @@ +/** @file + AsmReadDr6 function + + Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> + 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. + +**/ + + + + +/** + Reads the current value of Debug Register 6 (DR6). + + Reads and returns the current value of DR6. This function is only available + on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on + x64. + + @return The value of Debug Register 6 (DR6). + +**/ +UINTN +EFIAPI +AsmReadDr6 ( + VOID + ) +{ + __asm { + mov eax, dr6 + } +} + |