Sun Microsystems SunFastEthernet Adapte - Manual (Page 69)

Running Diagnostics C-3
C
To browse the OBP device tree, use the cd command to get to a specific
working directory, and words to find all the Forth words available in that
directory:
To examine the definition of a word, use the see command as follows:
For more information on using the OBP commands, refer to the Open Boot
Command Reference manual, part no. 800-6076-11.
ok setenv auto-boot? false
ok reset
ok cd /sbus/qec@1,20000/be
ok words
read write load close
open seek reset selftest
ok
ok see selftest
: selftest
(ffd988d0) (ffd98c28) (ffd99564) (ffd98c60) swap (ffd5fb9c)
(ffd988d0)
if
(ffd995ec)
else
-1
then
;
ok