/**
* Returns a piece of memory from a given offset and specified size If the offset + size exceed
* the current memory-size, the remainder will be filled with empty bytes.
*
* @param offset byte address in memory
* @param size the amount of bytes to return
* @return ByteBuffer containing the chunk of memory data
*/
public ByteBuffer memoryChunk(int offset, int size) {
allocateMemory(offset, size);
byte[] chunk;
if (memory != null) chunk = Arrays.copyOfRange(memory.array(), offset, offset + size);
else chunk = new byte[size];
return ByteBuffer.wrap(chunk);
}
public DataWord memoryLoad(int address) {
allocateMemory(address, DataWord.ZERO.getData().length);
DataWord newMem = new DataWord();
System.arraycopy(memory.array(), address, newMem.getData(), 0, newMem.getData().length);
return newMem;
}
/**
* Allocates a piece of memory and stores value at given offset address
*
* @param addr is the offset address
* @param allocSize size of memory needed to write
* @param value the data to write to memory
*/
public void memorySave(int addr, int allocSize, byte[] value) {
allocateMemory(addr, allocSize);
System.arraycopy(value, 0, memory.array(), addr, value.length);
}