| 62D59 |  NULL$SWAP | ( ob → $ ob )
 NULL$, thenSWAP. | 
| 04D3E |  DROPNULL$ | ( ob → NULL$)
 DROPthenNULL$. | 
| 04D57 |  (TWODROPNULL$) | ( ob ob' → NULL$)
 2DROPthenNULL$. | 
| 1613F |  NULL$TEMP | (  → $ )Creates null string in temporary memory
(
 NULL$, then <REF>TOTEMPOB). |