>FFA >EXECUTE >FLOAT
>FFA ( nfa -- ffa )  
<FORTH-83>
converts a pointer to the name-field (NFA) to point then to the corresponding flag-field (FFA) - in traditinal Forth this is the same address. pfe _can_ do different. 
 implementation-specific configure-dependent simulation:
   : FFA  1- ;

reference: p4_to_ffa in ../src/forth-83.c:0444, export CO >FFA