def load(self, addr, length=<NUM_LIT:1>):
if addr is None:<EOL><INDENT>return<EOL><DEDENT>elif not isinstance(addr, Iterable):<EOL><INDENT>self.first_level.load(addr, length=length)<EOL><DEDENT>else:<EOL><INDENT>self.first_level.iterload(addr, length=length)<EOL><DEDENT>
Load one or more addresses.

:param addr: byte address of load location
:param length: All address from addr until addr+length (exclusive) are
               loaded (default: 1)