[mirror_edk2.git] / ArmPkg / Library / CompilerIntrinsicsLib / Arm / ashrdi3.S

#------------------------------------------------------------------------------\r
#\r
# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
#\r
# SPDX-License-Identifier: BSD-2-Clause-Patent\r
#\r
#------------------------------------------------------------------------------\r
\r
#include <AsmMacroIoLib.h>\r
\r
ASM_FUNC(__ashrdi3)\r
  cmp  r2, #31\r
  bls  L2\r
  cmp  r2, #63\r
  subls  r2, r2, #32\r
  mov  ip, r1, asr #31\r
  movls  r2, r1, asr r2\r
  movhi  r2, ip\r
  mov  r0, r2\r
  mov  r1, ip\r
  bx  lr\r
L2:\r
  cmp  r2, #0\r
  rsbne  r3, r2, #32\r
  movne  r3, r1, asl r3\r
  movne  r1, r1, asr r2\r
  orrne  r0, r3, r0, lsr r2\r
  bx  lr\r
Commit	Line	Data
3402aac7	1	#------------------------------------------------------------------------------\r
1e57a462	2	#\r
	3	# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
	4	#\r
4059386c	5	# SPDX-License-Identifier: BSD-2-Clause-Patent\r
1e57a462	6	#\r
	7	#------------------------------------------------------------------------------\r
	8	\r
903e3124	9	#include <AsmMacroIoLib.h>\r
1e57a462	10	\r
903e3124	11	ASM_FUNC(__ashrdi3)\r
1e57a462	12	cmp r2, #31\r
	13	bls L2\r
	14	cmp r2, #63\r
	15	subls r2, r2, #32\r
	16	mov ip, r1, asr #31\r
	17	movls r2, r1, asr r2\r
	18	movhi r2, ip\r
	19	mov r0, r2\r
	20	mov r1, ip\r
	21	bx lr\r
	22	L2:\r
	23	cmp r2, #0\r
	24	rsbne r3, r2, #32\r
	25	movne r3, r1, asl r3\r
	26	movne r1, r1, asr r2\r
	27	orrne r0, r3, r0, lsr r2\r
	28	bx lr\r