gdb script (list 2, page 4)

(..gcc/sample_code)% cat  gdb-returned-value-check
# $Id: ximo16.mgp,v 1.15 2011/03/19 23:39:16 makoto Exp $
file a.out
target sim
load a.out
# GOOD destination (breakpoint 1)
b *0xffe4*2
# BAD destination (breakpoint 2)
b *0xffe8*2
run
stop
quit