Package jminusminus

Class NLIRArithmetic

java.lang.Object

jminusminus.NLIRInstruction

jminusminus.NLIRArithmetic

class NLIRArithmetic
extends NLIRInstruction

LIR instruction corresponding to the JVM arithmetic instructions.

Field Summary

Fields inherited from class jminusminus.NLIRInstruction

block, id, lirMnemonic, reads, write

Constructor Summary

Constructors

Constructor	Description
NLIRArithmetic(NBasicBlock block, int id, int opcode, NLIRInstruction lhs, NLIRInstruction rhs)	Constructs an NLIRArithmetic object.

Method Summary

Modifier and Type	Method	Description
void	allocatePhysicalRegisters()	Replace references to virtual registers in this LIR instruction with references to physical registers.
void	toSpim(PrintWriter out)	Translates this LIR instruction into SPIM and writes it out to the specified output stream.
String	toString()	Returns a string representation of this instruction.

Methods inherited from class java.lang.Object

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

Constructor Details

NLIRArithmetic

public NLIRArithmetic(NBasicBlock block,
 int id,
 int opcode,
 NLIRInstruction lhs,
 NLIRInstruction rhs)

Constructs an NLIRArithmetic object.

Parameters:

block - enclosing block.

id - identifier of the instruction.

opcode - opcode for the arithmetic operator.

lhs - LIR for lhs.

rhs - LIR for rhs.

Method Details

allocatePhysicalRegisters

public void allocatePhysicalRegisters()

Replace references to virtual registers in this LIR instruction with references to physical registers.

Overrides:

allocatePhysicalRegisters in class NLIRInstruction

toSpim

public void toSpim(PrintWriter out)

Translates this LIR instruction into SPIM and writes it out to the specified output stream.

Overrides:

toSpim in class NLIRInstruction

Parameters:

out - output stream for SPIM code.

toString

public String toString()

Returns a string representation of this instruction.

Overrides:

toString in class NLIRInstruction

Returns:

a string representation of this instruction.