| # -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- |
| # |
| # This Source Code Form is subject to the terms of the Mozilla Public |
| # License, v. 2.0. If a copy of the MPL was not distributed with this |
| # file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| |
| # |
| # Based on the programming examples in The PowerPC Architecture: |
| # A Specification for A New Family of RISC Processors, 2nd Ed., |
| # Book I, Section E.1, "Synchronization," pp. 249-256, May 1994. |
| # |
| |
| .section ".text" |
| |
| # |
| # PRInt32 _PR_ppc_AtomicIncrement(PRInt32 *val); |
| # |
| .align 2 |
| .globl _PR_ppc_AtomicIncrement |
| .type _PR_ppc_AtomicIncrement,@function |
| _PR_ppc_AtomicIncrement: |
| .Lfd1: lwarx 4,0,3 |
| addi 0,4,1 |
| stwcx. 0,0,3 |
| bne- .Lfd1 |
| mr 3,0 |
| blr |
| .Lfe1: .size _PR_ppc_AtomicIncrement,.Lfe1-_PR_ppc_AtomicIncrement |
| |
| # |
| # PRInt32 _PR_ppc_AtomicDecrement(PRInt32 *val); |
| # |
| .align 2 |
| .globl _PR_ppc_AtomicDecrement |
| .type _PR_ppc_AtomicDecrement,@function |
| _PR_ppc_AtomicDecrement: |
| .Lfd2: lwarx 4,0,3 |
| addi 0,4,-1 |
| stwcx. 0,0,3 |
| bne- .Lfd2 |
| mr 3,0 |
| blr |
| .Lfe2: .size _PR_ppc_AtomicDecrement,.Lfe2-_PR_ppc_AtomicDecrement |
| |
| # |
| # PRInt32 _PR_ppc_AtomicSet(PRInt32 *val, PRInt32 newval); |
| # |
| .align 2 |
| .globl _PR_ppc_AtomicSet |
| .type _PR_ppc_AtomicSet,@function |
| _PR_ppc_AtomicSet: |
| .Lfd3: lwarx 5,0,3 |
| stwcx. 4,0,3 |
| bne- .Lfd3 |
| mr 3,5 |
| blr |
| .Lfe3: .size _PR_ppc_AtomicSet,.Lfe3-_PR_ppc_AtomicSet |
| |
| # |
| # PRInt32 _PR_ppc_AtomicAdd(PRInt32 *ptr, PRInt32 val); |
| # |
| .align 2 |
| .globl _PR_ppc_AtomicAdd |
| .type _PR_ppc_AtomicAdd,@function |
| _PR_ppc_AtomicAdd: |
| .Lfd4: lwarx 5,0,3 |
| add 0,4,5 |
| stwcx. 0,0,3 |
| bne- .Lfd4 |
| mr 3,0 |
| blr |
| .Lfe4: .size _PR_ppc_AtomicAdd,.Lfe4-_PR_ppc_AtomicAdd |
| |
| # Magic indicating no need for an executable stack |
| .section .note.GNU-stack, "", @progbits ; .previous |
