[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / ReadDr6.c

/** @file\r
  AsmReadDr6 function\r
\r
  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
\r
\r
\r
/**\r
  Reads the current value of Debug Register 6 (DR6).\r
\r
  Reads and returns the current value of DR6. This function is only available\r
  on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r
  x64.\r
\r
  @return The value of Debug Register 6 (DR6).\r
\r
**/\r
UINTN\r
EFIAPI\r
AsmReadDr6 (\r
  VOID\r
  )\r
{\r
  __asm {\r
    mov     eax, dr6\r
  }\r
}\r
\r
Commit	Line	Data
	1	/** @file\r
	2	AsmReadDr6 function\r
	3	\r
	4	Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
	5	SPDX-License-Identifier: BSD-2-Clause-Patent\r
	6	\r
	7	**/\r
	8	\r
	9	\r
	10	\r
	11	\r
	12	/**\r
	13	Reads the current value of Debug Register 6 (DR6).\r
	14	\r
	15	Reads and returns the current value of DR6. This function is only available\r
	16	on IA-32 and x64. This returns a 32-bit value on IA-32 and a 64-bit value on\r
	17	x64.\r
	18	\r
	19	@return The value of Debug Register 6 (DR6).\r
	20	\r
	21	**/\r
	22	UINTN\r
	23	EFIAPI\r
	24	AsmReadDr6 (\r
	25	VOID\r
	26	)\r
	27	{\r
	28	__asm {\r
	29	mov eax, dr6\r
	30	}\r
	31	}\r
	32	\r