summaryrefslogtreecommitdiff
path: root/ArmPkg/Library/CompilerIntrinsicsLib/Arm/ashrdi3.S
blob: 0bc765ba386fb0721fca50ded7f3db8c24e40684 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
#------------------------------------------------------------------------------ 
#
# Copyright (c) 2008-2009 Apple Inc. All rights reserved.
#
# All rights reserved. This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution.  The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#------------------------------------------------------------------------------

	.text
	.align 2
	.globl ASM_PFX(__ashrdi3)

ASM_PFX(__ashrdi3):
	cmp	r2, #31
	bls	L2
	cmp	r2, #63
	subls	r2, r2, #32
	mov	ip, r1, asr #31
	movls	r2, r1, asr r2
	movhi	r2, ip
	mov	r0, r2
	mov	r1, ip
	bx	lr
L2:
	cmp	r2, #0
	rsbne	r3, r2, #32
	movne	r3, r1, asl r3
	movne	r1, r1, asr r2
	orrne	r0, r3, r0, lsr r2
	bx	lr