Frame

Class Frame

java.lang.Object

Frame.Frame

Direct Known Subclasses:

ArmFrame, MipsFrame

public abstract class Frame
extends java.lang.Object

Holds information about local variables and formal parameters that have been allocated in this frame.

Field Summary

Fields

Modifier and Type	Field and Description
java.util.List<Access>	formals
Label	name

Constructor Summary

Constructors

Constructor and Description
Frame()

Method Summary

Modifier and Type	Method and Description
abstract Access	allocFormal()
abstract Access	allocLocal()
abstract Label	badPtr()
abstract Label	badSub()
abstract java.util.List<Instr>	codeGen(java.util.List<Tree.Stm> stms)
abstract Temp[]	colorRegs()
abstract Tree.Exp	externalCall(Symbol func, java.util.List<Tree.Exp> args)
abstract Temp	FP()
abstract Frame	newFrame(Symbol name)
abstract void	printFrame(java.io.PrintWriter pw)
abstract void	procEntryExit1(java.util.List<Tree.Stm> body)
abstract void	procEntryExit2(java.util.List<Instr> body)
abstract void	procEntryExit3(java.util.List<Instr> body)
abstract java.lang.String	record(Label label, int words)
abstract java.lang.String	record(Label label, java.util.List<Label> values)
abstract Temp	RV()
abstract Temp[]	specialRegs()
abstract void	spill(java.util.List<Instr> insns, Temp[] spills)
abstract java.lang.String	string(Label label, java.lang.String value)
abstract java.lang.String	tempMap(Temp temp)
abstract int	wordSize()

Methods inherited from class java.lang.Object

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

Field Detail

name

public Label name

formals

public java.util.List<Access> formals

Constructor Detail

Frame

public Frame()

Method Detail

newFrame

public abstract Frame newFrame(Symbol name)

allocFormal

public abstract Access allocFormal()

allocLocal

public abstract Access allocLocal()

FP

public abstract Temp FP()

wordSize

public abstract int wordSize()

externalCall

public abstract Tree.Exp externalCall(Symbol func,
                                      java.util.List<Tree.Exp> args)

RV

public abstract Temp RV()

string

public abstract java.lang.String string(Label label,
                                        java.lang.String value)

record

public abstract java.lang.String record(Label label,
                                        int words)

record

public abstract java.lang.String record(Label label,
                                        java.util.List<Label> values)

badPtr

public abstract Label badPtr()

badSub

public abstract Label badSub()

tempMap

public abstract java.lang.String tempMap(Temp temp)

printFrame

public abstract void printFrame(java.io.PrintWriter pw)

procEntryExit1

public abstract void procEntryExit1(java.util.List<Tree.Stm> body)

codeGen

public abstract java.util.List<Instr> codeGen(java.util.List<Tree.Stm> stms)

procEntryExit2

public abstract void procEntryExit2(java.util.List<Instr> body)

procEntryExit3

public abstract void procEntryExit3(java.util.List<Instr> body)

spill

public abstract void spill(java.util.List<Instr> insns,
                           Temp[] spills)

colorRegs

public abstract Temp[] colorRegs()

specialRegs

public abstract Temp[] specialRegs()