hades.models.io
Class Ipin

java.lang.Object
  hades.simulator.SimObject
      hades.models.gates.GenericGate
          hades.models.io.Ipin

All Implemented Interfaces:

Assignable, java.lang.Cloneable, ContextToolTip, InputConnector, java.io.Serializable, Simulatable, Wakeable

Direct Known Subclasses:

IpinLarge, IpinStdLogic1164, PulseSwitch

public class Ipin

extends GenericGate

implements InputConnector, Assignable, Wakeable

Ipin - a simple subclass of GenericGate that models an switch. Also, a Ipin object is automatically interpreted as an input for a hierarchical Design - like a standard-CAD 'ipin'.

See Also:

Serialized Form

Field Summary

protected double	delay
protected StdLogic1164	output_0
protected StdLogic1164	output_1
protected StdLogic1164	output_U
protected StdLogic1164	output_X
protected StdLogic1164	output_Z
protected PortStdLogic1164	port_toplevel
protected PortStdLogic1164	port_Y
protected ColoredCircle	showOnOff
protected StdLogic1164	startValue
protected int	state

Fields inherited from class hades.models.gates.GenericGate

t_delay

Fields inherited from class hades.simulator.SimObject

classloader, console, debug, editor, name, parent, ports, propertySheet, simulator, symbol, versionId, visible

Constructor Summary

Ipin()
Ipin(): simple constructor

Method Summary

void	assign(java.lang.String value, double time) used to specify a new Ipin output value from an external source (e.g. a script).
void	configure() configure: display a dialog to specify the Ipin instance name, initial output value, and gate propagation delay.
void	elaborate(java.lang.Object arg) elaborate(): This method is called by the simulation engine to initialize the simulation object.
void	evaluate(java.lang.Object arg) evaluate: as interactive Ipin events are handled by mousePressed(), this method is only called by the simulation engine whenever our (hidden) toplevel signal changes.
double	getDelay()
java.lang.String	getStartValue()
protected void	initDisplay()
boolean	initialize(java.lang.String s) initialize an Ipin from a String, which contains the integer version id, and optionally the start value of this Ipin (the latter encoded via StdLogic1164.getChar() values, 'U' 'X' '0' ...
void	mousePressed(java.awt.event.MouseEvent me) handle a mouse click on this Ipin's graphical symbol.
protected void	schedule(int state, double delay, boolean interactive)
void	setDelay(java.lang.String s)
void	setName(java.lang.String name) set the name of this SimObject.
void	setStartState()
void	setStartValue(java.lang.String s)
void	setSymbol(Symbol s)
void	setValueAtTime(StdLogic1164 value, double time) Deprecated. please use assign(String,time) instead
void	showState()
void	wakeup(java.lang.Object arg) wakeup: this method is currently used to handle "external" events on this Ipin via the assign call, which schedules a Wakeup event to update the Ipin symbol at the correct simulation time.
void	write(java.io.PrintWriter ps) write the versionID and the start value of this Ipin (the latter as StdLogic1164.getChar() value), e.g. "1001 Z"

Methods inherited from class hades.models.gates.GenericGate

copy, getToolTip, scheduleEvent, scheduleEventAfter, scheduleOutputValue, scheduleOutputValueAfter, setDelay

Methods inherited from class hades.simulator.SimObject

constructDynamicSymbol, getClassLoader, getDebug, getEditor, getExternalResources, getFullName, getName, getParent, getPort, getPorts, getPropertySheet, getResourceAsStream, getSimulator, getSymbol, getSymbolResourceName, getVersionId, isVisible, message, needsDynamicSymbol, needsExternalResources, setClassLoader, setConsole, setDebug, setEditor, setParent, setPorts, setSimulator, setVersionId, setVisible, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface hades.simulator.Simulatable

message

Field Detail

state

protected int state

port_Y

protected PortStdLogic1164 port_Y

port_toplevel

protected PortStdLogic1164 port_toplevel

output_1

protected StdLogic1164 output_1

output_0

protected StdLogic1164 output_0

output_Z

protected StdLogic1164 output_Z

output_X

protected StdLogic1164 output_X

output_U

protected StdLogic1164 output_U

startValue

protected StdLogic1164 startValue

delay

protected double delay

showOnOff

protected ColoredCircle showOnOff

Constructor Detail

Ipin

public Ipin()

Ipin(): simple constructor

Method Detail

getDelay

public double getDelay()

Overrides:

getDelay in class GenericGate

setDelay

public void setDelay(java.lang.String s)

Overrides:

setDelay in class GenericGate

getStartValue

public java.lang.String getStartValue()

setStartValue

public void setStartValue(java.lang.String s)

initialize

public boolean initialize(java.lang.String s)

initialize an Ipin from a String, which contains the integer version id, and optionally the start value of this Ipin (the latter encoded via StdLogic1164.getChar() values, 'U' 'X' '0' ... 'D'), e.g. "1001 U"

Overrides:

initialize in class GenericGate

write

public void write(java.io.PrintWriter ps)

write the versionID and the start value of this Ipin (the latter as StdLogic1164.getChar() value), e.g. "1001 Z"

Overrides:

write in class GenericGate

setSymbol

public void setSymbol(Symbol s)

Overrides:

setSymbol in class SimObject

setName

public void setName(java.lang.String name)

Description copied from class: SimObject

set the name of this SimObject. If there is a Symbol for this SimObject, we also try to set the InstanceLabel in the Symbol.

To avoid consistency problems, when the user changes a SimObject's name interactively, we also try to enforce a unique name.

Overrides:

setName in class SimObject

initDisplay

protected void initDisplay()

setStartState

public void setStartState()

showState

public void showState()

mousePressed

public void mousePressed(java.awt.event.MouseEvent me)

handle a mouse click on this Ipin's graphical symbol. Toggle the Ipins output value, schedule a corresponding output event with the new output value, and update the graphical symbol. For a normal mouse-click, the output value toggles between "0-1-0...", while a shift-mouse-click toggles between "0-1-Z-U-0..." states.

Overrides:

mousePressed in class SimObject

elaborate

public void elaborate(java.lang.Object arg)

elaborate(): This method is called by the simulation engine to initialize the simulation object.

Specified by:

elaborate in interface Simulatable

Overrides:

elaborate in class GenericGate

Parameters:

arg - This parameter is ignored by Ipin

schedule

protected void schedule(int state,
                        double delay,
                        boolean interactive)

setValueAtTime

public void setValueAtTime(StdLogic1164 value,
                           double time)

Deprecated. please use assign(String,time) instead

used to specify a new Ipin output value from an external source (e.g. a script). Note that this method only schedules an output value, but does _not_ update the graphical representation of the Ipin. This should probably be corrected...

assign

public void assign(java.lang.String value,
                   double time)

used to specify a new Ipin output value from an external source (e.g. a script). Calling this method will result both in the corresponding output event and an update/repaint of the Ipin graphical symbol at the specified simulation time. The 'value' String is expected to have a one-character encoding of the StdLogic1164 value, namely "U" "X" "0" "1" "Z" "H" "L" "W" "D".

Internally, the latter graphical symbol update is implemented via a Wakeup event for this Ipin.

Specified by:

assign in interface Assignable

evaluate

public void evaluate(java.lang.Object arg)

evaluate: as interactive Ipin events are handled by mousePressed(), this method is only called by the simulation engine whenever our (hidden) toplevel signal changes. Take the toplevel signal value and propagate to our local signal.

Specified by:

evaluate in interface Simulatable

Overrides:

evaluate in class SimObject

Parameters:

arg - an arbitrary object argument

wakeup

public void wakeup(java.lang.Object arg)

wakeup: this method is currently used to handle "external" events on this Ipin via the assign call, which schedules a Wakeup event to update the Ipin symbol at the correct simulation time. To this end, the "arg" argument is expected to hold a WakeupEvent whose arg member is a StdLogic1164 object.

Specified by:

wakeup in interface Wakeable

configure

public void configure()

configure: display a dialog to specify the Ipin instance name, initial output value, and gate propagation delay.

Overrides:

configure in class GenericGate