My ACL 4.2 (January 1994) Manual, pages 5-38 thru 5-41 (this is UNIX) doesn't
tell me how, in

:trace (function :print-before (...) :print-after (...))

to get a hold of the argument values and return values.

I tried excl:arglist and the names of the arguments to the (compiled) functions
I'm tracing.

Anyone have any hints?

I'd like to do things like print only the second argument or only the
car of of the second returned value.

Is this documented somewhere else?

Any help would be appreciated.

Thanks
B. Kramer