memcpy(block + start - address, image->data + start - image->address, stop - start);
ao_self_block_write(cc, address, block);
ao_self_block_read(cc, address, check);
memcpy(block + start - address, image->data + start - image->address, stop - start);
ao_self_block_write(cc, address, block);
ao_self_block_read(cc, address, check);