Using NULLLAM

[David Hayden]

I've recently seen code like this in two different places:

Code:


   %1 %2 %3 %4 %5
   NULLLAM #5 NDUPN DOBIND

I was the impression that when using DOBIND, the LAMs had to be quoted like this:

Code:


   %1 %2 %3 %4 %5
   ' NULLLAM #5 NDUPN DOBIND

If you just execute NULLLAM, it appears to push a very small pointer on the stack. Also Chapter 13 of RPLMAN says "Executing an unbound temporary identifier object is
an error condition."

So everything I've seen indicates that one should quote NULLLAM when binding it, but I've run across two cases that don't, and that leads me to wonder if I'm wrong. Can anyone shed some light on this?

Thanks,
Dave