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18 lines
364 B
ArmAsm
18 lines
364 B
ArmAsm
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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TEXT bytes·IndexByte(SB),7,$0
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MOVQ p+0(FP), SI
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MOVL len+8(FP), CX
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MOVB b+16(FP), AL
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MOVQ SI, DI
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REPN; SCASB
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JZ 3(PC)
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MOVL $-1, ret+24(FP)
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RET
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SUBQ SI, DI
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SUBL $1, DI
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MOVL DI, ret+24(FP)
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RET
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