src/cmd/internal/obj/x86/list6.go - go - Git at Google

 // Inferno utils/6c/list.c
 // http://code.google.com/p/inferno-os/source/browse/utils/6c/list.c
 //
 //	Copyright © 1994-1999 Lucent Technologies Inc.  All rights reserved.
 //	Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
 //	Portions Copyright © 1997-1999 Vita Nuova Limited
 //	Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
 //	Portions Copyright © 2004,2006 Bruce Ellis
 //	Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
 //	Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
 //	Portions Copyright © 2009 The Go Authors.  All rights reserved.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
 // in the Software without restriction, including without limitation the rights
 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 // copies of the Software, and to permit persons to whom the Software is
 // furnished to do so, subject to the following conditions:
 //
 // The above copyright notice and this permission notice shall be included in
 // all copies or substantial portions of the Software.
 //
 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.

 package x86

 import (
 	"cmd/internal/obj"
 	"fmt"
 )

 //
 // Format conversions
 //	%A int		Opcodes (instruction mnemonics)
 //
 //	%D Addr*	Addresses (instruction operands)
 //
 //	%P Prog*	Instructions
 //
 //	%R int		Registers
 //
 //	%$ char*	String constant addresses (for internal use only)

 const (
 	STRINGSZ = 1000
 )

 var bigP *obj.Prog

 func Pconv(p *obj.Prog) string {
 	var str string
 	var fp string

 	switch p.As {
 	case obj.ADATA:
 		str = fmt.Sprintf("%.5d (%v)\t%v\t%v/%d,%v", p.Pc, p.Line(), Aconv(int(p.As)), Dconv(p, 0, &p.From), p.From3.Offset, Dconv(p, 0, &p.To))

 	case obj.ATEXT:
 		if p.From3.Offset != 0 {
 			str = fmt.Sprintf("%.5d (%v)\t%v\t%v,%d,%v", p.Pc, p.Line(), Aconv(int(p.As)), Dconv(p, 0, &p.From), p.From3.Offset, Dconv(p, 0, &p.To))
 			break
 		}

 		str = fmt.Sprintf("%.5d (%v)\t%v\t%v,%v", p.Pc, p.Line(), Aconv(int(p.As)), Dconv(p, 0, &p.From), Dconv(p, 0, &p.To))

 	default:
 		str = fmt.Sprintf("%.5d (%v)\t%v\t%v,%v", p.Pc, p.Line(), Aconv(int(p.As)), Dconv(p, 0, &p.From), Dconv(p, 0, &p.To))

 		// TODO(rsc): This special case is for SHRQ $32, AX:DX, which encodes as
 		//	SHRQ $32(DX*0), AX
 		// Remove.
 		if (p.From.Type == obj.TYPE_REG || p.From.Type == obj.TYPE_CONST) && p.From.Index != REG_NONE {
 			str += fmt.Sprintf(":%v", Rconv(int(p.From.Index)))
 		}
 	}

 	fp += str
 	return fp
 }

 func Aconv(i int) string {
 	var fp string

 	fp += Anames[i]
 	return fp
 }

 func Dconv(p *obj.Prog, flag int, a *obj.Addr) string {
 	var str string
 	var s string
 	var fp string

 	switch a.Type {
 	default:
 		str = fmt.Sprintf("type=%d", a.Type)

 	case obj.TYPE_NONE:
 		str = ""

 		// TODO(rsc): This special case is for instructions like
 	//	PINSRQ	CX,$1,X6
 	// where the $1 is included in the p->to Addr.
 	// Move into a new field.
 	case obj.TYPE_REG:
 		if a.Offset != 0 {
 			str = fmt.Sprintf("$%d,%v", a.Offset, Rconv(int(a.Reg)))
 			break
 		}

 		str = fmt.Sprintf("%v", Rconv(int(a.Reg)))

 	case obj.TYPE_BRANCH:
 		if a.Sym != nil {
 			str = fmt.Sprintf("%s(SB)", a.Sym.Name)
 		} else if p != nil && p.Pcond != nil {
 			str = fmt.Sprintf("%d", p.Pcond.Pc)
 		} else if a.U.Branch != nil {
 			str = fmt.Sprintf("%d", a.U.Branch.Pc)
 		} else {
 			str = fmt.Sprintf("%d(PC)", a.Offset)
 		}

 	case obj.TYPE_MEM:
 		switch a.Name {
 		default:
 			str = fmt.Sprintf("name=%d", a.Name)

 		case obj.NAME_NONE:
 			if a.Offset != 0 {
 				str = fmt.Sprintf("%d(%v)", a.Offset, Rconv(int(a.Reg)))
 			} else {
 				str = fmt.Sprintf("(%v)", Rconv(int(a.Reg)))
 			}

 		case obj.NAME_EXTERN:
 			str = fmt.Sprintf("%s+%d(SB)", a.Sym.Name, a.Offset)

 		case obj.NAME_STATIC:
 			str = fmt.Sprintf("%s<>+%d(SB)", a.Sym.Name, a.Offset)

 		case obj.NAME_AUTO:
 			if a.Sym != nil {
 				str = fmt.Sprintf("%s+%d(SP)", a.Sym.Name, a.Offset)
 			} else {
 				str = fmt.Sprintf("%d(SP)", a.Offset)
 			}

 		case obj.NAME_PARAM:
 			if a.Sym != nil {
 				str = fmt.Sprintf("%s+%d(FP)", a.Sym.Name, a.Offset)
 			} else {
 				str = fmt.Sprintf("%d(FP)", a.Offset)
 			}
 		}

 		if a.Index != REG_NONE {
 			s = fmt.Sprintf("(%v*%d)", Rconv(int(a.Index)), int(a.Scale))
 			str += s
 		}

 	case obj.TYPE_CONST:
 		str = fmt.Sprintf("$%d", a.Offset)

 	case obj.TYPE_TEXTSIZE:
 		if a.U.Argsize == obj.ArgsSizeUnknown {
 			str = fmt.Sprintf("$%d", a.Offset)
 		} else {
 			str = fmt.Sprintf("$%d-%d", a.Offset, a.U.Argsize)
 		}

 	case obj.TYPE_FCONST:
 		str = fmt.Sprintf("$(%.17g)", a.U.Dval)

 	case obj.TYPE_SCONST:
 		str = fmt.Sprintf("$%q", a.U.Sval)

 	case obj.TYPE_ADDR:
 		a.Type = obj.TYPE_MEM
 		str = fmt.Sprintf("$%v", Dconv(p, 0, a))
 		a.Type = obj.TYPE_ADDR
 	}

 	fp += str
 	return fp
 }

 var Register = []string{
 	"AL", /* [D_AL] */
 	"CL",
 	"DL",
 	"BL",
 	"SPB",
 	"BPB",
 	"SIB",
 	"DIB",
 	"R8B",
 	"R9B",
 	"R10B",
 	"R11B",
 	"R12B",
 	"R13B",
 	"R14B",
 	"R15B",
 	"AX", /* [D_AX] */
 	"CX",
 	"DX",
 	"BX",
 	"SP",
 	"BP",
 	"SI",
 	"DI",
 	"R8",
 	"R9",
 	"R10",
 	"R11",
 	"R12",
 	"R13",
 	"R14",
 	"R15",
 	"AH",
 	"CH",
 	"DH",
 	"BH",
 	"F0", /* [D_F0] */
 	"F1",
 	"F2",
 	"F3",
 	"F4",
 	"F5",
 	"F6",
 	"F7",
 	"M0",
 	"M1",
 	"M2",
 	"M3",
 	"M4",
 	"M5",
 	"M6",
 	"M7",
 	"X0",
 	"X1",
 	"X2",
 	"X3",
 	"X4",
 	"X5",
 	"X6",
 	"X7",
 	"X8",
 	"X9",
 	"X10",
 	"X11",
 	"X12",
 	"X13",
 	"X14",
 	"X15",
 	"CS", /* [D_CS] */
 	"SS",
 	"DS",
 	"ES",
 	"FS",
 	"GS",
 	"GDTR", /* [D_GDTR] */
 	"IDTR", /* [D_IDTR] */
 	"LDTR", /* [D_LDTR] */
 	"MSW",  /* [D_MSW] */
 	"TASK", /* [D_TASK] */
 	"CR0",  /* [D_CR] */
 	"CR1",
 	"CR2",
 	"CR3",
 	"CR4",
 	"CR5",
 	"CR6",
 	"CR7",
 	"CR8",
 	"CR9",
 	"CR10",
 	"CR11",
 	"CR12",
 	"CR13",
 	"CR14",
 	"CR15",
 	"DR0", /* [D_DR] */
 	"DR1",
 	"DR2",
 	"DR3",
 	"DR4",
 	"DR5",
 	"DR6",
 	"DR7",
 	"TR0", /* [D_TR] */
 	"TR1",
 	"TR2",
 	"TR3",
 	"TR4",
 	"TR5",
 	"TR6",
 	"TR7",
 	"TLS",    /* [D_TLS] */
 	"MAXREG", /* [MAXREG] */
 }

 func Rconv(r int) string {
 	var str string
 	var fp string

 	if r == REG_NONE {
 		fp += "NONE"
 		return fp
 	}

 	if REG_AL <= r && r-REG_AL < len(Register) {
 		str = fmt.Sprintf("%s", Register[r-REG_AL])
 	} else {
 		str = fmt.Sprintf("gok(%d)", r)
 	}

 	fp += str
 	return fp
 }
	// Inferno utils/6c/list.c
	// http://code.google.com/p/inferno-os/source/browse/utils/6c/list.c
	//
	// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
	// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
	// Portions Copyright © 1997-1999 Vita Nuova Limited
	// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
	// Portions Copyright © 2004,2006 Bruce Ellis
	// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
	// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
	// Portions Copyright © 2009 The Go Authors. All rights reserved.
	//
	// Permission is hereby granted, free of charge, to any person obtaining a copy
	// of this software and associated documentation files (the "Software"), to deal
	// in the Software without restriction, including without limitation the rights
	// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	// copies of the Software, and to permit persons to whom the Software is
	// furnished to do so, subject to the following conditions:
	//
	// The above copyright notice and this permission notice shall be included in
	// all copies or substantial portions of the Software.
	//
	// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	// THE SOFTWARE.

	package x86

	import (
	"cmd/internal/obj"
	"fmt"
	)

	//
	// Format conversions
	// %A int Opcodes (instruction mnemonics)
	//
	// %D Addr* Addresses (instruction operands)
	//
	// %P Prog* Instructions
	//
	// %R int Registers
	//
	// %$ char* String constant addresses (for internal use only)

	const (
	STRINGSZ = 1000
	)

	var bigP *obj.Prog

	func Pconv(p *obj.Prog) string {
	var str string
	var fp string

	switch p.As {
	case obj.ADATA:
	str = fmt.Sprintf("%.5d (%v)\t%v\t%v/%d,%v", p.Pc, p.Line(), Aconv(int(p.As)), Dconv(p, 0, &p.From), p.From3.Offset, Dconv(p, 0, &p.To))

	case obj.ATEXT:
	if p.From3.Offset != 0 {
	str = fmt.Sprintf("%.5d (%v)\t%v\t%v,%d,%v", p.Pc, p.Line(), Aconv(int(p.As)), Dconv(p, 0, &p.From), p.From3.Offset, Dconv(p, 0, &p.To))
	break
	}

	str = fmt.Sprintf("%.5d (%v)\t%v\t%v,%v", p.Pc, p.Line(), Aconv(int(p.As)), Dconv(p, 0, &p.From), Dconv(p, 0, &p.To))

	default:
	str = fmt.Sprintf("%.5d (%v)\t%v\t%v,%v", p.Pc, p.Line(), Aconv(int(p.As)), Dconv(p, 0, &p.From), Dconv(p, 0, &p.To))

	// TODO(rsc): This special case is for SHRQ $32, AX:DX, which encodes as
	// SHRQ $32(DX*0), AX
	// Remove.
	if (p.From.Type == obj.TYPE_REG \|\| p.From.Type == obj.TYPE_CONST) && p.From.Index != REG_NONE {
	str += fmt.Sprintf(":%v", Rconv(int(p.From.Index)))
	}
	}

	fp += str
	return fp
	}

	func Aconv(i int) string {
	var fp string

	fp += Anames[i]
	return fp
	}

	func Dconv(p obj.Prog, flag int, a obj.Addr) string {
	var str string
	var s string
	var fp string

	switch a.Type {
	default:
	str = fmt.Sprintf("type=%d", a.Type)

	case obj.TYPE_NONE:
	str = ""

	// TODO(rsc): This special case is for instructions like
	// PINSRQ CX,$1,X6
	// where the $1 is included in the p->to Addr.
	// Move into a new field.
	case obj.TYPE_REG:
	if a.Offset != 0 {
	str = fmt.Sprintf("$%d,%v", a.Offset, Rconv(int(a.Reg)))
	break
	}

	str = fmt.Sprintf("%v", Rconv(int(a.Reg)))

	case obj.TYPE_BRANCH:
	if a.Sym != nil {
	str = fmt.Sprintf("%s(SB)", a.Sym.Name)
	} else if p != nil && p.Pcond != nil {
	str = fmt.Sprintf("%d", p.Pcond.Pc)
	} else if a.U.Branch != nil {
	str = fmt.Sprintf("%d", a.U.Branch.Pc)
	} else {
	str = fmt.Sprintf("%d(PC)", a.Offset)
	}

	case obj.TYPE_MEM:
	switch a.Name {
	default:
	str = fmt.Sprintf("name=%d", a.Name)

	case obj.NAME_NONE:
	if a.Offset != 0 {
	str = fmt.Sprintf("%d(%v)", a.Offset, Rconv(int(a.Reg)))
	} else {
	str = fmt.Sprintf("(%v)", Rconv(int(a.Reg)))
	}

	case obj.NAME_EXTERN:
	str = fmt.Sprintf("%s+%d(SB)", a.Sym.Name, a.Offset)

	case obj.NAME_STATIC:
	str = fmt.Sprintf("%s<>+%d(SB)", a.Sym.Name, a.Offset)

	case obj.NAME_AUTO:
	if a.Sym != nil {
	str = fmt.Sprintf("%s+%d(SP)", a.Sym.Name, a.Offset)
	} else {
	str = fmt.Sprintf("%d(SP)", a.Offset)
	}

	case obj.NAME_PARAM:
	if a.Sym != nil {
	str = fmt.Sprintf("%s+%d(FP)", a.Sym.Name, a.Offset)
	} else {
	str = fmt.Sprintf("%d(FP)", a.Offset)
	}
	}

	if a.Index != REG_NONE {
	s = fmt.Sprintf("(%v*%d)", Rconv(int(a.Index)), int(a.Scale))
	str += s
	}

	case obj.TYPE_CONST:
	str = fmt.Sprintf("$%d", a.Offset)

	case obj.TYPE_TEXTSIZE:
	if a.U.Argsize == obj.ArgsSizeUnknown {
	str = fmt.Sprintf("$%d", a.Offset)
	} else {
	str = fmt.Sprintf("$%d-%d", a.Offset, a.U.Argsize)
	}

	case obj.TYPE_FCONST:
	str = fmt.Sprintf("$(%.17g)", a.U.Dval)

	case obj.TYPE_SCONST:
	str = fmt.Sprintf("$%q", a.U.Sval)

	case obj.TYPE_ADDR:
	a.Type = obj.TYPE_MEM
	str = fmt.Sprintf("$%v", Dconv(p, 0, a))
	a.Type = obj.TYPE_ADDR
	}

	fp += str
	return fp
	}

	var Register = []string{
	"AL", /* [D_AL] */
	"CL",
	"DL",
	"BL",
	"SPB",
	"BPB",
	"SIB",
	"DIB",
	"R8B",
	"R9B",
	"R10B",
	"R11B",
	"R12B",
	"R13B",
	"R14B",
	"R15B",
	"AX", /* [D_AX] */
	"CX",
	"DX",
	"BX",
	"SP",
	"BP",
	"SI",
	"DI",
	"R8",
	"R9",
	"R10",
	"R11",
	"R12",
	"R13",
	"R14",
	"R15",
	"AH",
	"CH",
	"DH",
	"BH",
	"F0", /* [D_F0] */
	"F1",
	"F2",
	"F3",
	"F4",
	"F5",
	"F6",
	"F7",
	"M0",
	"M1",
	"M2",
	"M3",
	"M4",
	"M5",
	"M6",
	"M7",
	"X0",
	"X1",
	"X2",
	"X3",
	"X4",
	"X5",
	"X6",
	"X7",
	"X8",
	"X9",
	"X10",
	"X11",
	"X12",
	"X13",
	"X14",
	"X15",
	"CS", /* [D_CS] */
	"SS",
	"DS",
	"ES",
	"FS",
	"GS",
	"GDTR", /* [D_GDTR] */
	"IDTR", /* [D_IDTR] */
	"LDTR", /* [D_LDTR] */
	"MSW", /* [D_MSW] */
	"TASK", /* [D_TASK] */
	"CR0", /* [D_CR] */
	"CR1",
	"CR2",
	"CR3",
	"CR4",
	"CR5",
	"CR6",
	"CR7",
	"CR8",
	"CR9",
	"CR10",
	"CR11",
	"CR12",
	"CR13",
	"CR14",
	"CR15",
	"DR0", /* [D_DR] */
	"DR1",
	"DR2",
	"DR3",
	"DR4",
	"DR5",
	"DR6",
	"DR7",
	"TR0", /* [D_TR] */
	"TR1",
	"TR2",
	"TR3",
	"TR4",
	"TR5",
	"TR6",
	"TR7",
	"TLS", /* [D_TLS] */
	"MAXREG", /* [MAXREG] */
	}

	func Rconv(r int) string {
	var str string
	var fp string

	if r == REG_NONE {
	fp += "NONE"
	return fp
	}

	if REG_AL <= r && r-REG_AL < len(Register) {
	str = fmt.Sprintf("%s", Register[r-REG_AL])
	} else {
	str = fmt.Sprintf("gok(%d)", r)
	}

	fp += str
	return fp
	}