Text file src/internal/bytealg/indexbyte_mipsx.s

     1	// Copyright 2018 The Go Authors. All rights reserved.
     2	// Use of this source code is governed by a BSD-style
     3	// license that can be found in the LICENSE file.
     4	
     5	// +build mips mipsle
     6	
     7	#include "go_asm.h"
     8	#include "textflag.h"
     9	
    10	TEXT ·IndexByte(SB),NOSPLIT,$0-20
    11		MOVW	b_base+0(FP), R1
    12		MOVW	b_len+4(FP), R2
    13		MOVBU	c+12(FP), R3	// byte to find
    14		ADDU	$1, R1, R4	// store base+1 for later
    15		ADDU	R1, R2	// end
    16	
    17	loop:
    18		BEQ	R1, R2, notfound
    19		MOVBU	(R1), R5
    20		ADDU	$1, R1
    21		BNE	R3, R5, loop
    22	
    23		SUBU	R4, R1	// R1 will be one beyond the position we want so remove (base+1)
    24		MOVW	R1, ret+16(FP)
    25		RET
    26	
    27	notfound:
    28		MOVW	$-1, R1
    29		MOVW	R1, ret+16(FP)
    30		RET
    31	
    32	TEXT ·IndexByteString(SB),NOSPLIT,$0-16
    33		MOVW	s_base+0(FP), R1
    34		MOVW	s_len+4(FP), R2
    35		MOVBU	c+8(FP), R3	// byte to find
    36		ADDU	$1, R1, R4	// store base+1 for later
    37		ADDU	R1, R2	// end
    38	
    39	loop:
    40		BEQ	R1, R2, notfound
    41		MOVBU	(R1), R5
    42		ADDU	$1, R1
    43		BNE	R3, R5, loop
    44	
    45		SUBU	R4, R1	// remove (base+1)
    46		MOVW	R1, ret+12(FP)
    47		RET
    48	
    49	notfound:
    50		MOVW	$-1, R1
    51		MOVW	R1, ret+12(FP)
    52		RET

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