| 81789 |  NOP | (  →  )Does nothing.
 | 
| 8172A |  'R | (  → ob )Pushes next object in return stack (i.e., the
first object in the composite above this one)
to the stack (skipping it). If top return
stack is empty (contains
 SEMI), a null
secondary is pushed and the pointer is not
advanced. | 
| 8172F |  'REVAL | (  → ? )Does <REF>'R then <REF>EVAL.
 | 
| 843E9 |  'R'R | (  → ob1 ob2 )Does <REF>'R twice.
 | 
| 8148C |  ticR | (  → ob T )
 (  → F    )Pushes next object in return stack to stack
and
 TRUE, of justFALSEif the top return
stack body is empty. In this case, it is
dropped. | 
| 84407 |  'RRDROP | (  → ob )Does <REF>'R , then <REF>RDROP.
 | 
| 81734 |  >R | ( :: →  )Pushes :: to top of return stack (skips
prolog, i.e., the composite will be executed
automatically).
 | 
| 8178E |  R> | (  → :: )Creates and pops a secondary from top
return stack body to stack.
 | 
| 81793 |  R@ | (  → :: )Like <REF>R>, but the return stack is not
popped.
 | 
| 81757 |  EVAL | ( ob →  )Evaluates object.
 | 
| 81CBB |  COMPEVAL | ( comp →  )
 EVALjust pushes a list back, this one
executes it. | 
| 81B21 |  RDUP | (  →  )Duplicates top return stack level.
 | 
| 81798 |  RDROP | (  →  )Pops the return stack.
 | 
| 813CE |  2RDROP | (  →  )Pops two return stack levels.
 | 
| 81469 |  3RDROP | (  →  )Pops three return stack levels.
 | 
| 83D68 |  DROPRDROP | ( ob →  )Does
 DROPthen <REF>RDROP . | 
| 81432 |  RDROPCOLA | (  →  )Does <REF>RDROP then <REF>COLA .
 | 
| 81437 |  RSWAP | (  →  )Swap in the return stack.
 | 
| 81B26 |  RROLL | ( #n →  )Rolls nth return stack level to top of return
stack.
 | 
| 84272 |  RSKIP | (  →  )Skips first object in the return stack (i.e.,
the first object in the composite above this
one).
 | 
| 0312B |  SEMI | (  →  )
 DROPthe rest of the current stream. |