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comparison: nsprpub/pr/src/md/unix/os_Linux_ppc.s
nsprpub/pr/src/md/unix/os_Linux_ppc.s
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- TOR_BUG_3246
- changeset 5
- 4ab42b5ab56c
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| -1:000000000000 | 0:a3653a14d425 |
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| 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/. | |
| 6 | |
| 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 # | |
| 12 | |
| 13 .section ".text" | |
| 14 | |
| 15 # | |
| 16 # PRInt32 _PR_ppc_AtomicIncrement(PRInt32 *val); | |
| 17 # | |
| 18 .align 2 | |
| 19 .globl _PR_ppc_AtomicIncrement | |
| 20 .type _PR_ppc_AtomicIncrement,@function | |
| 21 _PR_ppc_AtomicIncrement: | |
| 22 .Lfd1: lwarx 4,0,3 | |
| 23 addi 0,4,1 | |
| 24 stwcx. 0,0,3 | |
| 25 bne- .Lfd1 | |
| 26 mr 3,0 | |
| 27 blr | |
| 28 .Lfe1: .size _PR_ppc_AtomicIncrement,.Lfe1-_PR_ppc_AtomicIncrement | |
| 29 | |
| 30 # | |
| 31 # PRInt32 _PR_ppc_AtomicDecrement(PRInt32 *val); | |
| 32 # | |
| 33 .align 2 | |
| 34 .globl _PR_ppc_AtomicDecrement | |
| 35 .type _PR_ppc_AtomicDecrement,@function | |
| 36 _PR_ppc_AtomicDecrement: | |
| 37 .Lfd2: lwarx 4,0,3 | |
| 38 addi 0,4,-1 | |
| 39 stwcx. 0,0,3 | |
| 40 bne- .Lfd2 | |
| 41 mr 3,0 | |
| 42 blr | |
| 43 .Lfe2: .size _PR_ppc_AtomicDecrement,.Lfe2-_PR_ppc_AtomicDecrement | |
| 44 | |
| 45 # | |
| 46 # PRInt32 _PR_ppc_AtomicSet(PRInt32 *val, PRInt32 newval); | |
| 47 # | |
| 48 .align 2 | |
| 49 .globl _PR_ppc_AtomicSet | |
| 50 .type _PR_ppc_AtomicSet,@function | |
| 51 _PR_ppc_AtomicSet: | |
| 52 .Lfd3: lwarx 5,0,3 | |
| 53 stwcx. 4,0,3 | |
| 54 bne- .Lfd3 | |
| 55 mr 3,5 | |
| 56 blr | |
| 57 .Lfe3: .size _PR_ppc_AtomicSet,.Lfe3-_PR_ppc_AtomicSet | |
| 58 | |
| 59 # | |
| 60 # PRInt32 _PR_ppc_AtomicAdd(PRInt32 *ptr, PRInt32 val); | |
| 61 # | |
| 62 .align 2 | |
| 63 .globl _PR_ppc_AtomicAdd | |
| 64 .type _PR_ppc_AtomicAdd,@function | |
| 65 _PR_ppc_AtomicAdd: | |
| 66 .Lfd4: lwarx 5,0,3 | |
| 67 add 0,4,5 | |
| 68 stwcx. 0,0,3 | |
| 69 bne- .Lfd4 | |
| 70 mr 3,0 | |
| 71 blr | |
| 72 .Lfe4: .size _PR_ppc_AtomicAdd,.Lfe4-_PR_ppc_AtomicAdd | |
| 73 | |
| 74 # Magic indicating no need for an executable stack | |
| 75 .section .note.GNU-stack, "", @progbits ; .previous |
