scale.backend.trips2
Class Opcodes

java.lang.Object
  scale.backend.trips2.Opcodes

public class Opcodes
extends java.lang.Object

This class provides Trips instruction information.

$Id: Opcodes.java,v 1.19 2005-10-11 14:38:00 burrill Exp $

Copyright 2004 by the Scale Compiler Group,
Department of Computer Science
University of Massachusetts,
Amherst MA. 01003, USA
All Rights Reserved.

Trips opcodes are represented by an integer.

Field Summary

static int	_DUMMYSD
static int	_ENTER
static int	_ENTERA
static int	_ENTERB
static int	_LAST
static int	_LDSPILL
static int	_LPF
static int	_NOP
static int	_PHI
static int	_SDSPILL
static int	ADD
static int	ADDI
static int	AND
static int	ANDI
static int	APP
static byte	B0 This indicates a Trips Branch Instruction with no operands
static byte	B1 This indicates a Trips Branch Instruction with one operand
static int	BR
static int	BRO
static byte	C0 This indicates a Trips Constant Instruction with no operands
static byte	C1 This indicates a Trips Constant Instruction with one operand
static int	CALL
static int	CALLO
static int	DIVS
static int	DIVSI
static int	DIVU
static int	DIVUI
static byte	ENT This indicates an enter directive
static int	EXTSB
static int	EXTSH
static int	EXTSW
static int	EXTUB
static int	EXTUH
static int	EXTUW
static int	FADD
static int	FDIV
static int	FDTOI
static int	FDTOS
static int	FEQ
static int	FGE
static int	FGT
static int	FITOD
static int	FLE
static int	FLT
static int	FMUL
static int	FNE
static int	FSTOD
static int	FSUB
static byte	G0 This indicates a Trips General Instruction with no operands
static byte	G1 This indicates a Trips General Instruction with one operand
static byte	G2 This indicates a Trips General Instruction with two operands
static int	GENS
static int	GENU
static byte	I0 This indicates a Trips Immediate Instruction with no operands
static byte	I1 This indicates a Trips Immediate Instruction with one operand
static byte	L1 This indicates a Trips Load Instruction
static int	LB
static int	LBS
static int	LD
static int	LH
static int	LHS
static byte	LPF This indicates an LPF instruction
static int	LW
static int	LWS
static int	MFPC
static int	MOV
static int	MOVI
static int	MUL
static int	MULI
static int	NULL
static int	OR
static int	ORI
static byte	PHI This indicates a Phi Instruction
static byte	R0 This indicates a Trips Read Instruction with one operand
static int	READ
static int	RET
static byte	S2 This indicates a Trips Store Instruction
static int	SB
static int	SCALL
static int	SD
static int	SH
static int	SLL
static int	SLLI
static int	SRA
static int	SRAI
static int	SRL
static int	SRLI
static int	SUB
static int	SUBI
static int	SW
static int	TEQ
static int	TEQI
static int	TGE
static int	TGEI
static int	TGEU
static int	TGEUI
static int	TGT
static int	TGTI
static int	TGTU
static int	TGTUI
static int	TLE
static int	TLEI
static int	TLEU
static int	TLEUI
static int	TLT
static int	TLTI
static int	TLTU
static int	TLTUI
static int	TNE
static int	TNEI
static byte	UNK This indicates an unknown/unused instruction
static byte	W1 This indicates a Trips Write Instruction with one operand
static int	WRITE
static int	XOR
static int	XORI

Constructor Summary

Opcodes()

Method Summary

static byte	getFormat(int opcode) Return the instruction format.
static int	getIntImmOp(int op) Return the immediate form of an integer instruction.
static int	getIntOp(int op) Return the non-immediate form of an integer instruction.
static int	getNumTargets(Instruction inst) Return the number of targets.
static int	getNumTargets(int opcode) Return the number of targets.
static java.lang.String	getOp(Branch inst) Return the opcode mnemonic for the instruction.
static java.lang.String	getOp(Instruction inst) Return the opcode mnemonic for the instruction.
static java.lang.String	getOp(int opcode) Return the opcode mnemonic for the instruction opcode.
static int	getOp(java.lang.String opcode) Return the opcode for a mneumonic

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ENT

public static final byte ENT

This indicates an enter directive

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Constant Field Values

G0

public static final byte G0

This indicates a Trips General Instruction with no operands

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Constant Field Values

G1

public static final byte G1

This indicates a Trips General Instruction with one operand

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Constant Field Values

G2

public static final byte G2

This indicates a Trips General Instruction with two operands

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I0

public static final byte I0

This indicates a Trips Immediate Instruction with no operands

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I1

public static final byte I1

This indicates a Trips Immediate Instruction with one operand

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Constant Field Values

L1

public static final byte L1

This indicates a Trips Load Instruction

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Constant Field Values

S2

public static final byte S2

This indicates a Trips Store Instruction

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Constant Field Values

B0

public static final byte B0

This indicates a Trips Branch Instruction with no operands

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Constant Field Values

B1

public static final byte B1

This indicates a Trips Branch Instruction with one operand

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C0

public static final byte C0

This indicates a Trips Constant Instruction with no operands

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C1

public static final byte C1

This indicates a Trips Constant Instruction with one operand

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R0

public static final byte R0

This indicates a Trips Read Instruction with one operand

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Constant Field Values

W1

public static final byte W1

This indicates a Trips Write Instruction with one operand

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Constant Field Values

PHI

public static final byte PHI

This indicates a Phi Instruction

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LPF

public static final byte LPF

This indicates an LPF instruction

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Constant Field Values

UNK

public static final byte UNK

This indicates an unknown/unused instruction

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ADD

public static final int ADD

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SUB

public static final int SUB

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MUL

public static final int MUL

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DIVS

public static final int DIVS

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DIVU

public static final int DIVU

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AND

public static final int AND

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OR

public static final int OR

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XOR

public static final int XOR

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SLL

public static final int SLL

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SRL

public static final int SRL

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SRA

public static final int SRA

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TEQ

public static final int TEQ

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TNE

public static final int TNE

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TLE

public static final int TLE

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TLEU

public static final int TLEU

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TLT

public static final int TLT

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TLTU

public static final int TLTU

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TGE

public static final int TGE

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TGEU

public static final int TGEU

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TGT

public static final int TGT

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TGTU

public static final int TGTU

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ADDI

public static final int ADDI

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SUBI

public static final int SUBI

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MULI

public static final int MULI

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DIVSI

public static final int DIVSI

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DIVUI

public static final int DIVUI

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ANDI

public static final int ANDI

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ORI

public static final int ORI

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XORI

public static final int XORI

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SLLI

public static final int SLLI

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SRLI

public static final int SRLI

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SRAI

public static final int SRAI

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TEQI

public static final int TEQI

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TNEI

public static final int TNEI

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TLEI

public static final int TLEI

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TLEUI

public static final int TLEUI

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TLTI

public static final int TLTI

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TLTUI

public static final int TLTUI

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TGEI

public static final int TGEI

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TGEUI

public static final int TGEUI

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TGTI

public static final int TGTI

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TGTUI

public static final int TGTUI

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FADD

public static final int FADD

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FSUB

public static final int FSUB

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FMUL

public static final int FMUL

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FDIV

public static final int FDIV

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FEQ

public static final int FEQ

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FNE

public static final int FNE

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FLE

public static final int FLE

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FLT

public static final int FLT

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FGE

public static final int FGE

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FGT

public static final int FGT

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FITOD

public static final int FITOD

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FDTOI

public static final int FDTOI

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FSTOD

public static final int FSTOD

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FDTOS

public static final int FDTOS

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GENS

public static final int GENS

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GENU

public static final int GENU

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APP

public static final int APP

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LB

public static final int LB

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LH

public static final int LH

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LW

public static final int LW

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LD

public static final int LD

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LBS

public static final int LBS

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LHS

public static final int LHS

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LWS

public static final int LWS

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SB

public static final int SB

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SH

public static final int SH

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SW

public static final int SW

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SD

public static final int SD

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EXTSB

public static final int EXTSB

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EXTSH

public static final int EXTSH

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EXTSW

public static final int EXTSW

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EXTUB

public static final int EXTUB

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EXTUH

public static final int EXTUH

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EXTUW

public static final int EXTUW

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BR

public static final int BR

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CALL

public static final int CALL

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RET

public static final int RET

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BRO

public static final int BRO

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CALLO

public static final int CALLO

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SCALL

public static final int SCALL

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MOV

public static final int MOV

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MOVI

public static final int MOVI

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MFPC

public static final int MFPC

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WRITE

public static final int WRITE

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READ

public static final int READ

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NULL

public static final int NULL

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_NOP

public static final int _NOP

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_ENTER

public static final int _ENTER

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_ENTERA

public static final int _ENTERA

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_ENTERB

public static final int _ENTERB

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_PHI

public static final int _PHI

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_SDSPILL

public static final int _SDSPILL

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_LDSPILL

public static final int _LDSPILL

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Constant Field Values

_DUMMYSD

public static final int _DUMMYSD

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_LPF

public static final int _LPF

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_LAST

public static final int _LAST

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Constructor Detail

Opcodes

public Opcodes()

Method Detail

getNumTargets

public static int getNumTargets(Instruction inst)

Return the number of targets.

getNumTargets

public static int getNumTargets(int opcode)

Return the number of targets.

getIntOp

public static int getIntOp(int op)

Return the non-immediate form of an integer instruction.

getIntImmOp

public static int getIntImmOp(int op)

Return the immediate form of an integer instruction.

getOp

public static java.lang.String getOp(Instruction inst)

Return the opcode mnemonic for the instruction.

getOp

public static java.lang.String getOp(Branch inst)

Return the opcode mnemonic for the instruction.

getOp

public static java.lang.String getOp(int opcode)

Return the opcode mnemonic for the instruction opcode.

getOp

public static int getOp(java.lang.String opcode)

Return the opcode for a mneumonic

getFormat

public static byte getFormat(int opcode)

Return the instruction format.