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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build !linux

#include "textflag.h"

// TODO(minux): this is only valid for ARMv6+
// bool armcas(int32 *val, int32 old, int32 new)
// Atomically:
//	if(*val == old){
//		*val = new;
//		return 1;
//	}else
//		return 0;
TEXT	·Cas(SB),NOSPLIT,$0
	JMP	·armcas(SB)

// Non-linux OSes support only single processor machines before ARMv7.
// So we don't need memory barriers if goarm < 7. And we fail loud at
// startup (runtime.checkgoarm) if it is a multi-processor but goarm < 7.

TEXT	·Load(SB),NOSPLIT|NOFRAME,$0-8
	MOVW	addr+0(FP), R0
	MOVW	(R0), R1

MOVB	runtime·goarm(SB), R11
	CMP	$7, R11
	BLT	2(PC)
	DMB	MB_ISH

MOVW	R1, ret+4(FP)
	RET

TEXT	·Store(SB),NOSPLIT,$0-8
	MOVW	addr+0(FP), R1
	MOVW	v+4(FP), R2

MOVB	runtime·goarm(SB), R8
	CMP	$7, R8
	BLT	2(PC)
	DMB	MB_ISH

MOVW	R2, (R1)

CMP	$7, R8
	BLT	2(PC)
	DMB	MB_ISH
	RET

TEXT	·Load8(SB),NOSPLIT|NOFRAME,$0-5
	MOVW	addr+0(FP), R0
	MOVB	(R0), R1

MOVB	runtime·goarm(SB), R11
	CMP	$7, R11
	BLT	2(PC)
	DMB	MB_ISH

MOVB	R1, ret+4(FP)
	RET

TEXT	·Store8(SB),NOSPLIT,$0-5
	MOVW	addr+0(FP), R1
	MOVB	v+4(FP), R2

MOVB	runtime·goarm(SB), R8
	CMP	$7, R8
	BLT	2(PC)
	DMB	MB_ISH

MOVB	R2, (R1)

CMP	$7, R8
	BLT	2(PC)
	DMB	MB_ISH
	RET

Batal

⬅ internal 33 item

Nama	Tipe	Ukuran	Diubah	Aksi
🔵atomic_386.go	go	2.2 KB	2024-02-02 18:09	✏️ 👁️
📄atomic_386.s	s	6.5 KB	2024-02-02 18:09	✏️ 👁️
🔵atomic_amd64.go	go	2.5 KB	2024-02-02 18:09	✏️ 👁️
📄atomic_amd64.s	s	5.2 KB	2024-02-02 18:09	✏️ 👁️
🔵atomic_andor_generic.go	go	1.1 KB	2024-02-02 18:09	✏️ 👁️
🔵atomic_andor_test.go	go	5.1 KB	2024-02-02 18:09	✏️ 👁️
🔵atomic_arm.go	go	4.7 KB	2024-02-02 18:09	✏️ 👁️
📄atomic_arm.s	s	5.7 KB	2024-02-02 18:09	✏️ 👁️
🔵atomic_arm64.go	go	2.1 KB	2024-02-02 18:09	✏️ 👁️
📄atomic_arm64.s	s	8.3 KB	2024-02-02 18:09	✏️ 👁️
🔵atomic_loong64.go	go	1.8 KB	2024-02-02 18:09	✏️ 👁️
📄atomic_loong64.s	s	5.2 KB	2024-02-02 18:09	✏️ 👁️
🔵atomic_mips64x.go	go	1.8 KB	2024-02-02 18:09	✏️ 👁️
📄atomic_mips64x.s	s	6.1 KB	2024-02-02 18:09	✏️ 👁️
🔵atomic_mipsx.go	go	2.7 KB	2024-02-02 18:09	✏️ 👁️
📄atomic_mipsx.s	s	4.3 KB	2024-02-02 18:09	✏️ 👁️
🔵atomic_ppc64x.go	go	2.1 KB	2024-02-02 18:09	✏️ 👁️
📄atomic_ppc64x.s	s	7.5 KB	2024-02-02 18:09	✏️ 👁️
🔵atomic_riscv64.go	go	2 KB	2024-02-02 18:09	✏️ 👁️
📄atomic_riscv64.s	s	7 KB	2024-02-02 18:09	✏️ 👁️
🔵atomic_s390x.go	go	2.1 KB	2024-02-02 18:09	✏️ 👁️
📄atomic_s390x.s	s	5.9 KB	2024-02-02 18:09	✏️ 👁️
🔵atomic_test.go	go	8.5 KB	2024-02-02 18:09	✏️ 👁️
🔵atomic_wasm.go	go	5.3 KB	2024-02-02 18:09	✏️ 👁️
📄atomic_wasm.s	s	269 B	2024-02-02 18:09	✏️ 👁️
🔵bench_test.go	go	3.2 KB	2024-02-02 18:09	✏️ 👁️
🔵doc.go	go	771 B	2024-02-02 18:09	✏️ 👁️
🔵stubs.go	go	1.2 KB	2024-02-02 18:09	✏️ 👁️
📄sys_linux_arm.s	s	2.8 KB	2024-02-02 18:09	✏️ 👁️
📄sys_nonlinux_arm.s	s	1.3 KB	2024-02-02 18:09	✏️ 👁️
🔵types.go	go	14.2 KB	2024-02-02 18:09	✏️ 👁️
🔵types_64bit.go	go	1.1 KB	2024-02-02 18:09	✏️ 👁️
🔵unaligned.go	go	246 B	2024-02-02 18:09	✏️ 👁️

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