Intrinsics 0 - 20
Abs = 0
Ran = 1
Rem = 2
Reserve = 3
Swap = 4
Extend = 5
Restart = 6
ChIn = 7
ChOut = 8
CrLf = 9
IntIn = 10
IntOut = 11
Text = 12
OpenI = 13
OpenO = 14
Close = 15
Abort = 16
Trap = 17
Free = 18
Rerun = 19
GetHp = 20