(DICTFENCE)
* (DICTFENCE) ( -- constvalue )

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