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// Copyright 2024 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"
TEXT ·EnableDIT(SB),$0-1
MRS DIT, R0
UBFX $24, R0, $1, R1
MOVB R1, ret+0(FP)
MSR $1, DIT
// TODO(roland): the SB instruction is significantly more
// performant when available. We should detect its availability
// and use it when we can.
DSB $7 // nsh
ISB $15 // sy
RET
TEXT ·DITEnabled(SB),$0-1
MRS DIT, R0
UBFX $24, R0, $1, R1
MOVB R1, ret+0(FP)
RET
TEXT ·DisableDIT(SB),$0
MSR $0, DIT
RET
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