[Info-vax] How to detect ^Y from an inner command procedure

[alanfe...@gmail.com]

Suppose you're running a command procedure from a command procedure.

$ TYPE 1.COM
$ @2.COM
$ EXIT

$ TYPE 2.COM
$ WAIT 0:00:04
$ EXIT

So 1.com runs 2.com. 

Suppose you run 1.com and press ^ Y while 2.com is running. The command interpreter then exits 2.com and resumes running 1.com. Is there any way to tell from 1.com if 2.com was aborted via ^Y or just finished normally?

I thought $STATUS might help, but sometimes I get 
$STATUS == "%X10000001"
and sometimes I get
$STATUS == "%X10010001"
So I guess that's not the way to go.
Is there a way to do this?
TIA.