(Comp.sys.handhelds)
Item: 1702 by jmorriso at ee.ubc.ca
Author: [John Paul Morrison]
  Subj: Cute HP48 bug
  Date: Sat Jan 12 1991

Try this on the command line:

:&:123 (enter)
then press EVAL.

you get the system binary for 123, ie <123d> or <7Bh>
This works for any number that is not a library in a port.

ps. BUG = unintended/unexpected results from normal operations.

John Paul Morrison