Instructions(1)


  (load/store) mov
  (stack)      push/pop
  (immediate)  movi
  (arith)      add/sub/cmp
  (simple mul) mul  16x16->32
  (complex mul) clr/add/sub and mul (one instruction)
  (others)     neg abs rnd
  (1 bit div)  div 
  (logic)      and/or/eor/com
  (bit)        bset/bclr/btgl/btst
  (shift)      asl/asr/lsl/lsr/rol
  (pc control) nop/jmp/call/bra/loop
               ret/rti
  (misc)       sleep