diff options
Diffstat (limited to 'src/runtime/internal/atomic/atomic_mipsx.s')
| -rw-r--r-- | src/runtime/internal/atomic/atomic_mipsx.s | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/runtime/internal/atomic/atomic_mipsx.s b/src/runtime/internal/atomic/atomic_mipsx.s new file mode 100644 index 0000000..aeebc8f --- /dev/null +++ b/src/runtime/internal/atomic/atomic_mipsx.s @@ -0,0 +1,28 @@ +// Copyright 2016 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 mips mipsle + +#include "textflag.h" + +TEXT ·spinLock(SB),NOSPLIT,$0-4 + MOVW state+0(FP), R1 + MOVW $1, R2 + SYNC +try_lock: + MOVW R2, R3 +check_again: + LL (R1), R4 + BNE R4, check_again + SC R3, (R1) + BEQ R3, try_lock + SYNC + RET + +TEXT ·spinUnlock(SB),NOSPLIT,$0-4 + MOVW state+0(FP), R1 + SYNC + MOVW R0, (R1) + SYNC + RET |