Package edu.iu.jrsalata

Class RegisterStatement

java.lang.Object

edu.iu.jrsalata.Statement

edu.iu.jrsalata.BaseStatement

edu.iu.jrsalata.RegisterStatement

public class RegisterStatement
extends BaseStatement

The RegisterStatement class represents a statement that involves register operations in an assembler. It extends the BaseStatement class and includes two registers (reg1 and reg2). The format of the statement is set to 2, and the size is adjusted accordingly.

Field Summary

Fields inherited from class edu.iu.jrsalata.BaseStatement

format, location, opcode

Fields inherited from class edu.iu.jrsalata.Statement

block, controlSection, line, size

Constructor Summary

Constructors

Constructor	Description
RegisterStatement()	Constructs a new RegisterStatement with default values.
RegisterStatement(HexNum location, HexNum opcode, HexNum reg1)	Constructs a RegisterStatement with the specified location, opcode, and register 1.
RegisterStatement(HexNum location, HexNum opcode, HexNum reg1, HexNum reg2)	Constructs a RegisterStatement with the specified location, opcode, and registers.

Method Summary

Modifier and Type	Method	Description
void	accept(VisitorInterface visitor)	Accepts a visitor object and allows it to visit this RegisterStatement instance.
String	assemble()	Assembles the opcode and register values into a hex string representation.
void	setOpcode(HexNum opcode)	Sets the opcode for this RegisterStatement.
void	setReg1(HexNum reg1)	Sets the value of the first register.
void	setReg2(HexNum reg2)	Sets the value of the second register.

Methods inherited from class edu.iu.jrsalata.BaseStatement

getLocation, setLocation

Methods inherited from class edu.iu.jrsalata.Statement

getBlock, getControlSection, getLine, getSize, setBlock, setControlSection, setLine

Methods inherited from class java.lang.Object

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

Constructor Details

RegisterStatement

public RegisterStatement()

Constructs a new RegisterStatement with default values. Initializes the format to 2, sets the size based on the format, and initializes both reg1 and reg2 to new HexNum instances with a value of 0.

RegisterStatement

public RegisterStatement(HexNum location,
 HexNum opcode,
 HexNum reg1)

Constructs a RegisterStatement with the specified location, opcode, and register 1.

Parameters:

location - the memory location of the statement

opcode - the operation code of the statement

reg1 - the first register involved in the statement

RegisterStatement

public RegisterStatement(HexNum location,
 HexNum opcode,
 HexNum reg1,
 HexNum reg2)

Constructs a RegisterStatement with the specified location, opcode, and registers.

Parameters:

location - the memory location of the statement

opcode - the operation code of the statement

reg1 - the first register involved in the statement

reg2 - the second register involved in the statement

Method Details

setReg1

public void setReg1(HexNum reg1)

Sets the value of the first register.

Parameters:

reg1 - the HexNum object to set as the first register. If reg1 is null, the current value of reg1 will not be changed.

setReg2

public void setReg2(HexNum reg2)

Sets the value of the second register.

Parameters:

reg2 - the HexNum object to set as the second register. If reg2 is null, the current value of reg2 will not be changed.

setOpcode

public void setOpcode(HexNum opcode)

Sets the opcode for this RegisterStatement.

Parameters:

opcode - the HexNum object representing the opcode to be set

assemble

public String assemble()

Assembles the opcode and register values into a hex string representation.

Specified by:

assemble in class Statement

Returns:

A hex string representation of the opcode and register values.

accept

public void accept(VisitorInterface visitor)

Accepts a visitor object and allows it to visit this RegisterStatement instance.

Specified by:

accept in class Statement

Parameters:

visitor - the visitor object that will visit this instance