How to show data in hex format?

If gdb is the inferior debugger then one can use a gdb command and the
gdb way, e.g. p/x expression

Zarko Zivanov contributed a patch a while ago to make viewing on x68
nicer. It might have also had some hex patches. His patch has been
encorprated into the pydb branch of ddd and there was a test release a
while ago with this.

Geert Vancompernolle writes:
 > Hi,
 > 
 > When debugging, How can I see the data represented in hex iso. octal or 
 > decimal format?
 > 
 > Best rgds,
 > 
 > --Geert