tests/general/vm.c

   1 // little virtual machine
   2 int acc1;
   3 int acc2;
   4 acc1 = 0;
   5 acc2 = 0;
   6
   7 void dispatch (int instr){
   8   switch (instr){
   9   case 0:
  10     acc1 = 0;
  11     acc2 = 0;
  12     break;
  13   case 1:
  14     acc1++;
  15     break;
  16   case 2:
  17     acc2++;
  18     break;
  19   case 3:
  20     acc2 = acc1;
  21     break;
  22   case 4:
  23     acc1 = acc1 + acc2;
  24     break;
  25   }
  26 }
  27
  28 dispatch(1);
  29 dispatch(1);
  30 dispatch(2);
  31 dispatch(4);
  32 dispatch(3);