chickadee » describe » dump

dump obj #!optional offset length outprocedure

Hexdump the contents of OBJ to output port OUT, starting at OFFSET and continuing for LENGTH bytes. Offset defaults to 0, length to #f (meaning, until the end) and output to (current-output-port).

If dumping a pointer object, length defaults to 32 bytes, as the underlying length is unknown to us.