A
ABORT           (   ---   )
   Clears the data stack and performs the function
   of  QUIT .


ABORT"     ( flag ---   ), (   ---   ) (compiling)
   If flag is true, message that follows " is dis-
   played  and  the  ABORT  function is performed.
   If flag is false, the flag is dropped and execu-
   tion continues.


ABS             ( n --- u )
   Leaves on the stack the absolute value, u of n.


AGAIN           (   ---   ), ( sys ---   ) (compiling)
   Affect an unconditional jump back to the  start
   of a BEGIN-AGAIN loop.


ALLOT           ( w ---   )
   Reserves w bytes of dictionary space.


AND             ( 16b1 16b2 --- 16b3 )
   Leaves the bitwise logical AND of 16b1 and 16b2
   as 16b3.


ATO4            (   ---  n )
   Returns  address  of  subroutine call to high
   level word as indicated in D register.


AUTOSTART       ( addr ---   )
   Prepare autostart vector  at  addr  which  will
   cause <name> to be executed upon reset.   Note:
   addr must be on a 1K byte boundary.