36 lines
1.0 KiB
Go
36 lines
1.0 KiB
Go
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// Copyright 2017 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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package arm64asm
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import (
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"strings"
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)
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// GNUSyntax returns the GNU assembler syntax for the instruction, as defined by GNU binutils.
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// This form typically matches the syntax defined in the ARM Reference Manual.
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func GNUSyntax(inst Inst) string {
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switch inst.Op {
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case RET:
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if r, ok := inst.Args[0].(Reg); ok && r == X30 {
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return "ret"
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}
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case B:
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if _, ok := inst.Args[0].(Cond); ok {
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return strings.ToLower("b." + inst.Args[0].String() + " " + inst.Args[1].String())
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}
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case SYSL:
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result := strings.ToLower(inst.String())
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return strings.Replace(result, "c", "C", -1)
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case DCPS1, DCPS2, DCPS3, CLREX:
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return strings.ToLower(strings.TrimSpace(inst.String()))
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case ISB:
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if strings.Contains(inst.String(), "SY") {
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result := strings.TrimSuffix(inst.String(), " SY")
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return strings.ToLower(result)
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}
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}
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return strings.ToLower(inst.String())
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}
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