plugins/net.mograsim.machine/src/net/mograsim/machine/standard/memory/StandardBitVectorMemory.java

   1 package net.mograsim.machine.standard.memory;
   2
   3 import java.math.BigInteger;
   4
   5 import net.mograsim.logic.core.types.Bit;
   6 import net.mograsim.logic.core.types.BitVector;
   7 import net.mograsim.machine.BitVectorMemory;
   8 import net.mograsim.machine.BitVectorMemoryDefinition;
   9 import net.mograsim.machine.GenericMemory;
  10
  11 public class StandardBitVectorMemory<D extends BitVectorMemoryDefinition> extends GenericMemory<BitVector, D> implements BitVectorMemory
  12 {
  13         public StandardBitVectorMemory(D definition)
  14         {
  15                 super(definition);
  16         }
  17
  18         @Override
  19         public BitVector getCell(long address)
  20         {
  21                 BitVector cell = super.getCell(address);
  22                 if (cell == null)
  23                         setCell(address, cell = getDefaultValue(address));
  24                 return cell;
  25         }
  26
  27         @Override
  28         public BigInteger getCellAsBigInteger(long address)
  29         {
  30                 return getCell(address).getUnsignedValue();
  31         }
  32
  33         @Override
  34         public void setCell(long address, BitVector data)
  35         {
  36                 if (data.isBinary())
  37                         super.setCell(address, data);
  38         }
  39
  40         @Override
  41         public void setCellAsBigInteger(long address, BigInteger data)
  42         {
  43                 setCell(address, BitVector.from(data, getDefinition().getCellWidth()));
  44         }
  45
  46         protected BitVector getDefaultValue(@SuppressWarnings("unused") /* this method is inteded to be overridden */ long address)
  47         {
  48                 return BitVector.of(Bit.U, getDefinition().getCellWidth());
  49         }
  50 }