Thu May 14 10:07:13 CEST 2009

functional PIC18 language

To make this work in practice, this needs jumps.  The control flow
analyser and control stack are not necessary so let's keep it simple.
What we need are:

      - function call / return instructions
      - conditional jump (ifte)

Ok. separated out pic18-control-unit.ss making pic18-unit.ss
independent of the control^ macro set.