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