Emulator.Components
Class Flag

java.lang.Object
  Emulator.Components.Component
      Emulator.Components.Flag

All Implemented Interfaces:

DataComponent, Constants

public class Flag
extends Component
implements DataComponent

********************** Created By: Yuval Tzur Date: 14/12/12 Time: 23:21 Description: This class represents a 1-bit flag. A flag is a component. A flag has a boolean value and a change of state flag that indicates that the flag was set since the last time its value was checked. The boolean value has a buffer to mimic the master-slave functionality of real flip-flops. The change of state flag is set to true when the flag is set to true, and resets when the flag is read. Values are set to the buffer and read from the value. An update method will move the value from the buffer to the value. ***********************

Field Summary

Fields inherited from interface Emulator.Global.Constants

_0, _1, AC, ADDR_REGISTER_SIZE, ALU, ALU_IN0, ALU_IN1, ALU_OUT, AR, BUS, BUS_SIZE, DATA_COMPONENTS, DATA_REGISTER_SIZE, DATA_TABLE_SIZE, DR, E, FGI, FGO, I, IEN, INPR, IO_REGISTER_SIZE, IR, M, MEMORY_SIZE, OUTR, PC, R, S, TARGET_REACHED, TIMEOUT, TIMER, TIMER_LIMIT, TR, TR0, TR1, UNREACHABLE

Constructor Summary

Flag(int id, java.lang.String name)

Method Summary

void	and()
boolean	changed()
void	clear()
void	complement()
void	complement0()
void	complement1()
void	disableWrite()
void	disableWrite0()
void	disableWrite1()
void	divide()
void	enableWrite()
void	enableWrite0()
void	enableWrite1()
void	equal()
boolean	evaluateAsBoolean()
boolean	evaluateAsBoolean(int bitIndex)
boolean	evaluateAsBoolean(int bitStart, int bitEnd)
int	get_decimal()
int	get_decimal(int bitIndex)
int	get_decimal(int bitStart, int bitEnd)
DataComponent	get_input0()
DataComponent	get_input1()
DataComponent	get_output()
Value	get_row(int address)
Value	get_value()
Value	get_value(int index)
Value	get_value(int start, int end)
void	greaterOrEqual()
void	greaterThan()
void	increment()
boolean	isWritable()
boolean	isWritable0()
boolean	isWritable1()
void	lessOrEqual()
void	lessThan()
void	modulo()
void	multiply()
void	notEqual()
void	or()
void	passThrough0()
void	passThrough1()
void	set_value(int start, int end, Value value)
void	set_value(int index, Value value)
void	set_value(Value value)
void	set()
void	shiftLeft0(int numOfBits, boolean filler)
void	shiftLeft1(int numOfBits, boolean filler)
void	shiftRight0(int numOfBits, boolean filler)
void	shiftRight1(int numOfBits, boolean filler)
void	subtract()
void	sum()
void	update()
void	xor()

Methods inherited from class Emulator.Components.Component

get_id, get_name, set_id, set_name

Methods inherited from class java.lang.Object

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

Constructor Detail

Flag

public Flag(int id,
            java.lang.String name)

Method Detail

set_value

public void set_value(Value value)

Specified by:

set_value in interface DataComponent

get_value

public Value get_value()

Specified by:

get_value in interface DataComponent

get_input0

public DataComponent get_input0()

Specified by:

get_input0 in interface DataComponent

get_input1

public DataComponent get_input1()

Specified by:

get_input1 in interface DataComponent

get_output

public DataComponent get_output()

Specified by:

get_output in interface DataComponent

evaluateAsBoolean

public boolean evaluateAsBoolean(int bitIndex)

Specified by:

evaluateAsBoolean in interface DataComponent

evaluateAsBoolean

public boolean evaluateAsBoolean(int bitStart,
                                 int bitEnd)

Specified by:

evaluateAsBoolean in interface DataComponent

isWritable

public boolean isWritable()

Specified by:

isWritable in interface DataComponent

isWritable0

public boolean isWritable0()

Specified by:

isWritable0 in interface DataComponent

isWritable1

public boolean isWritable1()

Specified by:

isWritable1 in interface DataComponent

get_value

public Value get_value(int start,
                       int end)

Specified by:

get_value in interface DataComponent

get_value

public Value get_value(int index)

Specified by:

get_value in interface DataComponent

get_row

public Value get_row(int address)

Specified by:

get_row in interface DataComponent

set_value

public void set_value(int index,
                      Value value)

Specified by:

set_value in interface DataComponent

set_value

public void set_value(int start,
                      int end,
                      Value value)

Specified by:

set_value in interface DataComponent

enableWrite

public void enableWrite()

Specified by:

enableWrite in interface DataComponent

enableWrite0

public void enableWrite0()

Specified by:

enableWrite0 in interface DataComponent

enableWrite1

public void enableWrite1()

Specified by:

enableWrite1 in interface DataComponent

disableWrite

public void disableWrite()

Specified by:

disableWrite in interface DataComponent

disableWrite0

public void disableWrite0()

Specified by:

disableWrite0 in interface DataComponent

disableWrite1

public void disableWrite1()

Specified by:

disableWrite1 in interface DataComponent

increment

public void increment()

Specified by:

increment in interface DataComponent

passThrough0

public void passThrough0()

Specified by:

passThrough0 in interface DataComponent

passThrough1

public void passThrough1()

Specified by:

passThrough1 in interface DataComponent

sum

public void sum()

Specified by:

sum in interface DataComponent

subtract

public void subtract()

Specified by:

subtract in interface DataComponent

multiply

public void multiply()

Specified by:

multiply in interface DataComponent

divide

public void divide()

Specified by:

divide in interface DataComponent

modulo

public void modulo()

Specified by:

modulo in interface DataComponent

and

public void and()

Specified by:

and in interface DataComponent

or

public void or()

Specified by:

or in interface DataComponent

xor

public void xor()

Specified by:

xor in interface DataComponent

equal

public void equal()

Specified by:

equal in interface DataComponent

notEqual

public void notEqual()

Specified by:

notEqual in interface DataComponent

greaterThan

public void greaterThan()

Specified by:

greaterThan in interface DataComponent

lessThan

public void lessThan()

Specified by:

lessThan in interface DataComponent

greaterOrEqual

public void greaterOrEqual()

Specified by:

greaterOrEqual in interface DataComponent

lessOrEqual

public void lessOrEqual()

Specified by:

lessOrEqual in interface DataComponent

complement0

public void complement0()

Specified by:

complement0 in interface DataComponent

complement1

public void complement1()

Specified by:

complement1 in interface DataComponent

shiftLeft0

public void shiftLeft0(int numOfBits,
                       boolean filler)

Specified by:

shiftLeft0 in interface DataComponent

shiftLeft1

public void shiftLeft1(int numOfBits,
                       boolean filler)

Specified by:

shiftLeft1 in interface DataComponent

shiftRight0

public void shiftRight0(int numOfBits,
                        boolean filler)

Specified by:

shiftRight0 in interface DataComponent

shiftRight1

public void shiftRight1(int numOfBits,
                        boolean filler)

Specified by:

shiftRight1 in interface DataComponent

get_decimal

public int get_decimal(int bitIndex)

Specified by:

get_decimal in interface DataComponent

get_decimal

public int get_decimal(int bitStart,
                       int bitEnd)

Specified by:

get_decimal in interface DataComponent

evaluateAsBoolean

public boolean evaluateAsBoolean()

Specified by:

evaluateAsBoolean in interface DataComponent

get_decimal

public int get_decimal()

Specified by:

get_decimal in interface DataComponent

set

public void set()

Specified by:

set in interface DataComponent

clear

public void clear()

Specified by:

clear in interface DataComponent

complement

public void complement()

Specified by:

complement in interface DataComponent

changed

public boolean changed()

Specified by:

changed in interface DataComponent

update

public void update()

Specified by:

update in interface DataComponent