[mirror_edk2.git] / StdLib / LibC / Main / Ia32 / fpu_rmode.S

#------------------------------------------------------------------------------\r
#\r
# Copyright (c) 2010, 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
#------------------------------------------------------------------------------\r
\r
ASM_GLOBAL ASM_PFX(internal_FPU_rmode)\r
ASM_PFX(internal_FPU_rmode):\r
  subl $4,%esp\r
  fnstcw (%esp)\r
  movl (%esp),%eax\r
  shrl $10,%eax\r
  andl $3,%eax\r
  addl $4,%esp\r
  ret\r
Commit	Line	Data
2aa62f2b	1	#------------------------------------------------------------------------------\r
	2	#\r
	3	# Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>\r
	4	# This program and the accompanying materials\r
	5	# are licensed and made available under the terms and conditions of the BSD License\r
	6	# which accompanies this distribution. The full text of the license may be found at\r
	7	# http://opensource.org/licenses/bsd-license.php.\r
	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	#------------------------------------------------------------------------------\r
	13	\r
	14	ASM_GLOBAL ASM_PFX(internal_FPU_rmode)\r
	15	ASM_PFX(internal_FPU_rmode):\r
	16	subl $4,%esp\r
	17	fnstcw (%esp)\r
	18	movl (%esp),%eax\r
	19	shrl $10,%eax\r
	20	andl $3,%eax\r
	21	addl $4,%esp\r
	22	ret\r