/* Copyright (c) 2010, Carl Burch. License information is located in the
* com.cburch.logisim.Main source code and at www.cburch.com/logisim/. */
package com.cburch.logisim.std.memory;
import com.cburch.logisim.data.BitWidth;
import com.cburch.logisim.data.Value;
import com.cburch.logisim.instance.InstanceLogger;
import com.cburch.logisim.instance.InstanceState;
import com.cburch.logisim.instance.StdAttr;
public class ShiftRegisterLogger extends InstanceLogger {
@Override
public Object[] getLogOptions(InstanceState state) {
Integer stages = state.getAttributeValue(ShiftRegister.ATTR_LENGTH);
Object[] ret = new Object[stages.intValue()];
for (int i = 0; i < ret.length; i++) {
ret[i] = Integer.valueOf(i);
}
return ret;
}
@Override
public String getLogName(InstanceState state, Object option) {
String inName = state.getAttributeValue(StdAttr.LABEL);
if (inName == null || inName.equals("")) {
inName = Strings.get("shiftRegisterComponent")
+ state.getInstance().getLocation();
}
if (option instanceof Integer) {
return inName + "[" + option + "]";
} else {
return inName;
}
}
@Override
public Value getLogValue(InstanceState state, Object option) {
BitWidth dataWidth = state.getAttributeValue(StdAttr.WIDTH);
if (dataWidth == null) dataWidth = BitWidth.create(0);
ShiftRegisterData data = (ShiftRegisterData) state.getData();
if (data == null) {
return Value.createKnown(dataWidth, 0);
} else {
int index = option == null ? 0 : ((Integer) option).intValue();
return data.get(index);
}
}
}