// 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"

#define REGCTXT R22

// memequal(a, b unsafe.Pointer, size uintptr) bool

TEXT runtime·memequal(SB),NOSPLIT,$0-13

MOVW a+0(FP), R1

MOVW b+4(FP), R2

BEQ R1, R2, eq

MOVW size+8(FP), R3

ADDU R1, R3, R4

loop:

BNE R1, R4, test

MOVW $1, R1

MOVB R1, ret+12(FP)

RET

test:

MOVBU (R1), R6

ADDU $1, R1

MOVBU (R2), R7

ADDU $1, R2

BEQ R6, R7, loop

MOVB R0, ret+12(FP)

RET

eq:

MOVW $1, R1

MOVB R1, ret+12(FP)

RET

// memequal_varlen(a, b unsafe.Pointer) bool

TEXT runtime·memequal_varlen(SB),NOSPLIT,$0-9

MOVW a+0(FP), R1

MOVW b+4(FP), R2

BEQ R1, R2, eq

MOVW 4(REGCTXT), R3 // compiler stores size at offset 4 in the closure

ADDU R1, R3, R4

loop:

BNE R1, R4, test

MOVW $1, R1

MOVB R1, ret+8(FP)

RET

test:

MOVBU (R1), R6

ADDU $1, R1

MOVBU (R2), R7

ADDU $1, R2

BEQ R6, R7, loop

MOVB R0, ret+8(FP)

RET

eq:

MOVW $1, R1

MOVB R1, ret+8(FP)

RET