public final void clobber() throws VM_PragmaUninterruptible { clobber(start, end); }
static public void clobber(VM_Address start, VM_Address end) throws VM_PragmaUninterruptible { VM.sysWrite("Zapping region ", start); VM.sysWrite(" .. ", end); VM.sysWriteln(" with 0xff****ff: "); int size = end.diff(start); for (int i=0; i<size; i+=4) { int pattern = 0xff0000ff; pattern |= i & 0x00ffff00; VM_Magic.setMemoryWord(start.add(i), pattern); } }
  public final void clobber() throws VM_PragmaUninterruptible { clobber(start, end); }