(DICTFENCE)
 the lower limit of the forth writeable memory space,
 the variable >DICTFENCE must be above this line.
 Some code-areas are often moved in between >DICTFENCE and
 this constant. To guard normal Forth code from deletion
 the usual practice goes with the >FENCE variable
 
 >DICTLIMIT is the upper end of the writeable dictionary
  | 
  tools_misc   ordinary primitive