import net.mograsim.logic.core.components.BasicComponent;
import net.mograsim.logic.core.timeline.Timeline;
import net.mograsim.logic.core.types.Bit;
-import net.mograsim.logic.core.types.BitVector;
import net.mograsim.logic.core.wires.Wire.ReadEnd;
import net.mograsim.logic.core.wires.Wire.ReadWriteEnd;
+import net.mograsim.machine.MainMemoryDefinition;
/**
- * A memory component that only allows access to words of a specific length
+ * A memory component that only allows access to words of a specific width
*/
public class WordAddressableMemoryComponent extends BasicComponent
{
* @param rWBit The value of the 0th bit dictates the mode: 0: Write, 1: Read
* @param address The bits of this ReadEnd address the memory cell to read/write
*/
- public WordAddressableMemoryComponent(Timeline timeline, int processTime, long minimalAddress, long maximalAddress, ReadWriteEnd data,
+ public WordAddressableMemoryComponent(Timeline timeline, int processTime, MainMemoryDefinition definition, ReadWriteEnd data,
ReadEnd rWBit, ReadEnd address)
{
super(timeline, processTime);
+ if(data.width() != definition.getCellWidth())
+ throw new IllegalArgumentException(String.format("Bit width of data wire does not match main memory definition. Expected: %d Actual: %d", definition.getCellWidth(), data.width()));
+ if(rWBit.width() != 1)
+ throw new IllegalArgumentException(String.format("Bit width of read/write mode select wire is unexpected. Expected: 1 Actual: %d", rWBit.width()));
+ if(address.width() != definition.getMemoryAddressBits())
+ throw new IllegalArgumentException(String.format("Bit width of address wire does not match main memory definition. Expected: %d Actual: %d", definition.getMemoryAddressBits(), address.width()));
this.data = data;
this.rWBit = rWBit;
this.address = address;
rWBit.registerObserver(this);
address.registerObserver(this);
- memory = new WordAddressableMemory(data.length(), minimalAddress, maximalAddress);
+ memory = new WordAddressableMemory(definition);
}
@Override
if (!address.hasNumericValue())
{
if (read.equals(rWBit.getValue()))
- data.feedSignals(BitVector.of(Bit.U, data.length()));
+ data.feedSignals(Bit.U.toVector(data.width()));
else
data.clearSignals();
return;