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// Copyright 2018 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 mips || mipsle
#include "go_asm.h"
#include "textflag.h"
TEXT ·IndexByte(SB),NOSPLIT,$0-20
MOVW b_base+0(FP), R1
MOVW b_len+4(FP), R2
MOVBU c+12(FP), R3 // byte to find
ADDU $1, R1, R4 // store base+1 for later
ADDU R1, R2 // end
loop:
BEQ R1, R2, notfound
MOVBU (R1), R5
ADDU $1, R1
BNE R3, R5, loop
SUBU R4, R1 // R1 will be one beyond the position we want so remove (base+1)
MOVW R1, ret+16(FP)
RET
notfound:
MOVW $-1, R1
MOVW R1, ret+16(FP)
RET
TEXT ·IndexByteString(SB),NOSPLIT,$0-16
MOVW s_base+0(FP), R1
MOVW s_len+4(FP), R2
MOVBU c+8(FP), R3 // byte to find
ADDU $1, R1, R4 // store base+1 for later
ADDU R1, R2 // end
loop:
BEQ R1, R2, notfound
MOVBU (R1), R5
ADDU $1, R1
BNE R3, R5, loop
SUBU R4, R1 // remove (base+1)
MOVW R1, ret+12(FP)
RET
notfound:
MOVW $-1, R1
MOVW R1, ret+12(FP)
RET
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