Unsafe.clear(start.add(Offset.fromIntZeroExtend(memPtr)), Extent.fromIntZeroExtend(size));
Unsafe.clear(start.add(Offset.fromIntZeroExtend(memPtr)), Extent.fromIntSignExtend(size));
	public void clear(int memPtr, int size) {		testMemPtr(memPtr, size);		Unsafe.clear(start.add(Offset.fromIntZeroExtend(memPtr)), Extent.fromIntZeroExtend(size));	}