[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / SwapBytes64.S

#------------------------------------------------------------------------------\r
#\r
# Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
# This program and the accompanying materials\r
# are licensed and made available under the terms and conditions of the BSD License\r
# which accompanies this distribution.  The full text of the license may be found at\r
# http://opensource.org/licenses/bsd-license.php.\r
#\r
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
#\r
# Module Name:\r
#\r
#   CpuId.S\r
#\r
# Abstract:\r
#\r
#   AsmCpuid function\r
#\r
# Notes:\r
#\r
#------------------------------------------------------------------------------\r
\r
\r
#------------------------------------------------------------------------------\r
# UINT64\r
# EFIAPI\r
# InternalMathSwapBytes64 (\r
#   IN      UINT64                    Operand\r
#   );\r
#------------------------------------------------------------------------------\r
ASM_GLOBAL ASM_PFX(InternalMathSwapBytes64)\r
ASM_PFX(InternalMathSwapBytes64):\r
    movl    8(%esp), %eax               # eax <- upper 32 bits\r
    movl    4(%esp), %edx               # edx <- lower 32 bits\r
    bswapl  %eax\r
    bswapl  %edx\r
    ret\r
Commit	Line	Data
b1ff428c	1	#------------------------------------------------------------------------------\r
b1ff428c	2	#\r
bb817c56 HT	3	# Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
bb817c56 HT	4	# This program and the accompanying materials\r
b1ff428c	5	# are licensed and made available under the terms and conditions of the BSD License\r
b1ff428c	6	# which accompanies this distribution. The full text of the license may be found at\r
e4a34497	7	# http://opensource.org/licenses/bsd-license.php.\r
b1ff428c	8	#\r
	9	# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	10	# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	11	#\r
	12	# Module Name:\r
	13	#\r
	14	# CpuId.S\r
	15	#\r
	16	# Abstract:\r
	17	#\r
	18	# AsmCpuid function\r
	19	#\r
	20	# Notes:\r
	21	#\r
	22	#------------------------------------------------------------------------------\r
	23	\r
	24	\r
	25	#------------------------------------------------------------------------------\r
	26	# UINT64\r
	27	# EFIAPI\r
	28	# InternalMathSwapBytes64 (\r
	29	# IN UINT64 Operand\r
	30	# );\r
	31	#------------------------------------------------------------------------------\r
132f41f0	32	ASM_GLOBAL ASM_PFX(InternalMathSwapBytes64)\r
b1ff428c	33	ASM_PFX(InternalMathSwapBytes64):\r
	34	movl 8(%esp), %eax # eax <- upper 32 bits\r
	35	movl 4(%esp), %edx # edx <- lower 32 bits\r
	36	bswapl %eax\r
	37	bswapl %edx\r
	38	ret\r