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Diffstat (limited to 'src/runtime/memclr_plan9_amd64.s')
| -rw-r--r-- | src/runtime/memclr_plan9_amd64.s | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/runtime/memclr_plan9_amd64.s b/src/runtime/memclr_plan9_amd64.s new file mode 100644 index 0000000..8c6a1cc --- /dev/null +++ b/src/runtime/memclr_plan9_amd64.s @@ -0,0 +1,23 @@ +// 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. + +#include "textflag.h" + +// See memclrNoHeapPointers Go doc for important implementation constraints. + +// func memclrNoHeapPointers(ptr unsafe.Pointer, n uintptr) +TEXT runtime·memclrNoHeapPointers(SB),NOSPLIT,$0-16 + MOVQ ptr+0(FP), DI + MOVQ n+8(FP), CX + MOVQ CX, BX + ANDQ $7, BX + SHRQ $3, CX + MOVQ $0, AX + CLD + REP + STOSQ + MOVQ BX, CX + REP + STOSB + RET |