diff options
Diffstat (limited to 'src/runtime/atomic_power64x.s')
| -rw-r--r-- | src/runtime/atomic_power64x.s | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/runtime/atomic_power64x.s b/src/runtime/atomic_power64x.s new file mode 100644 index 000000000..e72871761 --- /dev/null +++ b/src/runtime/atomic_power64x.s @@ -0,0 +1,40 @@ +// Copyright 2014 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. + +// +build power64 power64le + +#include "textflag.h" + +// uint32 runtime·atomicload(uint32 volatile* addr) +TEXT ·atomicload(SB),NOSPLIT,$-8-12 + MOVD 0(FP), R3 + SYNC + MOVWZ 0(R3), R3 + CMPW R3, R3, CR7 + BC 4, 30, 1(PC) // bne- cr7,0x4 + ISYNC + MOVW R3, ret+8(FP) + RETURN + +// uint64 runtime·atomicload64(uint64 volatile* addr) +TEXT ·atomicload64(SB),NOSPLIT,$-8-16 + MOVD 0(FP), R3 + SYNC + MOVD 0(R3), R3 + CMP R3, R3, CR7 + BC 4, 30, 1(PC) // bne- cr7,0x4 + ISYNC + MOVD R3, ret+8(FP) + RETURN + +// void *runtime·atomicloadp(void *volatile *addr) +TEXT ·atomicloadp(SB),NOSPLIT,$-8-16 + MOVD 0(FP), R3 + SYNC + MOVD 0(R3), R3 + CMP R3, R3, CR7 + BC 4, 30, 1(PC) // bne- cr7,0x4 + ISYNC + MOVD R3, ret+8(FP) + RETURN |