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

/** @file\r
  AsmReadEflags 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
  Reads the current value of the EFLAGS register.\r
\r
  Reads and returns the current value of the EFLAGS register. This function is\r
  only available on IA-32 and x64. This returns a 32-bit value on IA-32 and a\r
  64-bit value on x64.\r
\r
  @return EFLAGS on IA-32 or RFLAGS on x64.\r
\r
**/\r
UINTN\r
EFIAPI\r
AsmReadEflags (\r
  VOID\r
  )\r
{\r
  __asm {\r
    pushfd\r
    pop     eax\r
  }\r
}\r
Commit	Line	Data
e1f414b6	1	/** @file\r
	2	AsmReadEflags function\r
	3	\r
bb817c56	4	Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
9344f092	5	SPDX-License-Identifier: BSD-2-Clause-Patent\r
e1f414b6	6	\r
	7	**/\r
	8	\r
42eedea9	9	/**\r
	10	Reads the current value of the EFLAGS register.\r
	11	\r
	12	Reads and returns the current value of the EFLAGS register. This function is\r
030cd1a2	13	only available on IA-32 and x64. This returns a 32-bit value on IA-32 and a\r
030cd1a2	14	64-bit value on x64.\r
42eedea9	15	\r
030cd1a2	16	@return EFLAGS on IA-32 or RFLAGS on x64.\r
42eedea9	17	\r
42eedea9	18	**/\r
e1f414b6	19	UINTN\r
	20	EFIAPI\r
	21	AsmReadEflags (\r
	22	VOID\r
	23	)\r
	24	{\r
	25	__asm {\r
	26	pushfd\r
	27	pop eax\r
	28	}\r
	29	}\r