public SignExtend(UnaryOp cast) {
Iterator<Port> ports = cast.getDataPorts().iterator();
Port d_port = ports.next();
assert (d_port.isUsed()) : "Operand port in unary operation is set to unused.";
Bus d_bus = d_port.getBus();
assert (d_bus != null) : "Operand port in unary operation not attached to a bus.";
PortWire pwire = new PortWire(d_port);
if (pwire.getExpression() instanceof BaseNumber) {
// input is a constant value, so the resize should be a no-op?
} else {
if (pwire.getExpression() instanceof Wire) {
operand = (Wire) pwire.getExpression();
} else {
operand =
new Wire(ID.toVerilogIdentifier(ID.showLogical(cast)), d_port.getValue().getSize());
add(new Assign.Continuous(operand, new PortWire(d_port)));
produced_nets.add(operand);
}
result_wire = NetFactory.makeNet(cast.getResultBus());
produced_nets.add(result_wire);
int result_width = result_wire.getWidth();
/** unsigned value will be padded with zeros * */
add(
new Assign.Continuous(
result_wire,
new org.xronos.openforge.verilog.pattern.SignExtend(operand, result_width)));
}
}
public UnaryOpAssignment(UnaryOp uo, boolean checkBalance) {
Iterator<Port> ports = uo.getDataPorts().iterator();
Port d_port = ports.next();
assert (d_port.isUsed()) : "Operand port in unary operation is set to unused.";
// Bus d_bus = d_port.getBus();
// assert (d_bus != null) :
// "Operand port in unary operation not attached to a bus.";
assert (d_port.getValue() != null) : "Operand port in unary operation does not have a value.";
operand = new PortWire(d_port);
result_wire = NetFactory.makeNet(uo.getResultBus());
add(new Assign.Continuous(result_wire, makeOpExpression(operand), checkBalance));
}
/**
* Creates Pins on the design to connect each task's I/O.
*
* @param design the Design to be connected
*/
@SuppressWarnings("deprecation")
private void connectTasks(Design design) {
// Map kickers = new HashMap();
for (Task task : design.getTasks()) {
Call call = task.getCall();
// Note: when creating the InputPins, they are based on the related
// procedure port instead of the call port, because the InputPin
// needs
// the Port's peer bus to get sizing information
// might have a this port
if (task.getCall().getThisPort() != null) {
int width = task.getCall().getThisPort().getValue().getSize();
/*
* The base address of the top level object reference is always
* 0, since it isn't actually stored in memory.
*/
Constant constant = new SimpleConstant(0, width, false);
task.setHiddenConstant(constant);
}
// If module_builder, then publish the ports, and don't use a kicker
if (EngineThread.getGenericJob()
.getUnscopedBooleanOptionValue(OptionRegistry.MODULE_BUILDER)) {
// get the entry method
EntryMethod em = call.getProcedure().getEntryMethod();
Port go = call.getGoPort();
if (go.isUsed()) {
Pin p = connectInputPin(design, call, go, call.getGoName());
if (em != null) {
p.setApiPin(em.getGoPin());
}
}
List<Port> dataPorts = new ArrayList<Port>(call.getDataPorts());
// 'this' port is handled specially.
dataPorts.remove(call.getThisPort());
int index = 0;
for (Port port : dataPorts) {
if (port.getTag().equals(Component.NORMAL)) {
if (port.isUsed()) {
Pin p = connectInputPin(design, call, port, null);
if (em != null) {
p.setApiPin(em.getArgPin(index));
}
}
}
index++;
}
Exit exit = call.getExit(Exit.DONE);
Bus done = exit.getDoneBus();
if (done.isUsed()) {
OutputPin pin = connectOutputPin(design, call, done, call.getProcedure().getDoneName());
if (em != null) {
pin.setApiPin(em.getDonePin());
}
}
for (Bus bus : exit.getDataBuses()) {
if (bus.getTag().equals(Component.NORMAL)) {
if (bus.isUsed()) {
OutputPin pin =
connectOutputPin(design, call, bus, call.getProcedure().getResultName());
if (em != null) {
pin.setApiPin(em.getResultPin());
}
}
}
}
}
}
}