nsprpub/pr/src/md/unix/os_Darwin_ppc.s@4ab42b5ab56c
nsprpub/pr/src/md/unix/os_Darwin_ppc.s
Wed, 31 Dec 2014 07:53:36 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 07:53:36 +0100
- branch
- TOR_BUG_3246
- changeset 5
- 4ab42b5ab56c
- permissions
- -rw-r--r--
Correct small whitespace inconsistency, lost while renaming variables.
1 # -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 #
3 # This Source Code Form is subject to the terms of the Mozilla Public
4 # License, v. 2.0. If a copy of the MPL was not distributed with this
5 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
7 #
8 # Based on the programming examples in The PowerPC Architecture:
9 # A Specification for A New Family of RISC Processors, 2nd Ed.,
10 # Book I, Section E.1, "Synchronization," pp. 249-256, May 1994.
11 #
13 .text
15 #
16 # PRInt32 __PR_DarwinPPC_AtomicIncrement(PRInt32 *val);
17 #
18 .align 2
19 .globl __PR_DarwinPPC_AtomicIncrement
20 .private_extern __PR_DarwinPPC_AtomicIncrement
21 __PR_DarwinPPC_AtomicIncrement:
22 lwarx r4,0,r3
23 addi r0,r4,1
24 stwcx. r0,0,r3
25 bne- __PR_DarwinPPC_AtomicIncrement
26 mr r3,r0
27 blr
29 #
30 # PRInt32 __PR_DarwinPPC_AtomicDecrement(PRInt32 *val);
31 #
32 .align 2
33 .globl __PR_DarwinPPC_AtomicDecrement
34 .private_extern __PR_DarwinPPC_AtomicDecrement
35 __PR_DarwinPPC_AtomicDecrement:
36 lwarx r4,0,r3
37 addi r0,r4,-1
38 stwcx. r0,0,r3
39 bne- __PR_DarwinPPC_AtomicDecrement
40 mr r3,r0
41 blr
43 #
44 # PRInt32 __PR_DarwinPPC_AtomicSet(PRInt32 *val, PRInt32 newval);
45 #
46 .align 2
47 .globl __PR_DarwinPPC_AtomicSet
48 .private_extern __PR_DarwinPPC_AtomicSet
49 __PR_DarwinPPC_AtomicSet:
50 lwarx r5,0,r3
51 stwcx. r4,0,r3
52 bne- __PR_DarwinPPC_AtomicSet
53 mr r3,r5
54 blr
56 #
57 # PRInt32 __PR_DarwinPPC_AtomicAdd(PRInt32 *ptr, PRInt32 val);
58 #
59 .align 2
60 .globl __PR_DarwinPPC_AtomicAdd
61 .private_extern __PR_DarwinPPC_AtomicAdd
62 __PR_DarwinPPC_AtomicAdd:
63 lwarx r5,0,r3
64 add r0,r4,r5
65 stwcx. r0,0,r3
66 bne- __PR_DarwinPPC_AtomicAdd
67 mr r3,r0
68 blr
