360     def _op(self, f, block=None, off=None, size=None):  argument
361         if block is None:
372                 count=max(self.count, block+1))
375             start = (block*self.size + off) / (self.size*self.count)
376             stop = (block*self.size + off+size) / (self.size*self.count)
386     def read(self, block=None, off=None, size=None):  argument
387         self._op(Block.read, block, off, size)
389     def prog(self, block=None, off=None, size=None):  argument
390         self._op(Block.prog, block, off, size)
392     def erase(self, block=None, off=None, size=None):  argument
393         self._op(Block.erase, block, off, size)
395     def clear(self, block=None, off=None, size=None):  argument
396         self._op(Block.clear, block, off, size)
569         block=(None,None),  argument
620     block_start = block[0]
621     block_stop = block[1] if len(block) > 1 else block[0]+1
730             block = int(m.group('read_block'), 0)
734             if block_stop is not None and block >= block_stop:
736             block -= block_start
743             bd.read(block, off, size)
747             block = int(m.group('prog_block'), 0)
751             if block_stop is not None and block >= block_stop:
753             block -= block_start
760             bd.prog(block, off, size)
764             block = int(m.group('erase_block'), 0)
767             if block_stop is not None and block >= block_stop:
769             block -= block_start
774             bd.erase(block, off, size)