Pete Lomax wrote:

My question is: What can I do to P4 entries to mark them as available
for re-use?

close: P0=P4[I1] close P0 # mark slot as free null P5 P4[I1]=P5 # set to NULL ret

you can test the entry by:

   set P0, P4[I1]
   isnull P0, is_close
   #
is_close:

Regards,
Pete

leo




Reply via email to