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// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build amd64
#include "textflag.h"
TEXT ·AndUint32(SB),$0-12
MOVQ addr+0(FP), BP
MOVL val+8(FP), AX
LOCK
ANDL AX, 0(BP)
RET
TEXT ·OrUint32(SB),$0-12
MOVQ addr+0(FP), BP
MOVL val+8(FP), AX
LOCK
ORL AX, 0(BP)
RET
TEXT ·XorUint32(SB),$0-12
MOVQ addr+0(FP), BP
MOVL val+8(FP), AX
LOCK
XORL AX, 0(BP)
RET
TEXT ·CompareAndSwapUint32(SB),$0-20
MOVQ addr+0(FP), DI
MOVL old+8(FP), AX
MOVL new+12(FP), DX
LOCK
CMPXCHGL DX, 0(DI)
MOVL AX, ret+16(FP)
RET
TEXT ·AndUint64(SB),$0-16
MOVQ addr+0(FP), BP
MOVQ val+8(FP), AX
LOCK
ANDQ AX, 0(BP)
RET
TEXT ·OrUint64(SB),$0-16
MOVQ addr+0(FP), BP
MOVQ val+8(FP), AX
LOCK
ORQ AX, 0(BP)
RET
TEXT ·XorUint64(SB),$0-16
MOVQ addr+0(FP), BP
MOVQ val+8(FP), AX
LOCK
XORQ AX, 0(BP)
RET
TEXT ·CompareAndSwapUint64(SB),$0-32
MOVQ addr+0(FP), DI
MOVQ old+8(FP), AX
MOVQ new+16(FP), DX
LOCK
CMPXCHGQ DX, 0(DI)
MOVQ AX, ret+24(FP)
RET
TEXT ·IncUnlessZeroInt32(SB),NOSPLIT,$0-9
MOVQ addr+0(FP), DI
MOVL 0(DI), AX
retry:
TESTL AX, AX
JZ fail
LEAL 1(AX), DX
LOCK
CMPXCHGL DX, 0(DI)
JNZ retry
SETEQ ret+8(FP)
RET
fail:
MOVB AX, ret+8(FP)
RET
TEXT ·DecUnlessOneInt32(SB),NOSPLIT,$0-9
MOVQ addr+0(FP), DI
MOVL 0(DI), AX
retry:
LEAL -1(AX), DX
TESTL DX, DX
JZ fail
LOCK
CMPXCHGL DX, 0(DI)
JNZ retry
SETEQ ret+8(FP)
RET
fail:
MOVB DX, ret+8(FP)
RET
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