     $47-$48/71-72:   Pointer: to value of (VARNAM) if Integer, to descriptor
                               if String

    Kernal-Reference:

     LDA $47     : $B349 $B3D2 $B435
         ($47),Y : $B418
     LDY $47     : $BEB4
     STA $47     : $B18F $B341 $B40D
     STY $47     : $BE9D

     LDA $48     : $B3CF $B432
     LDY $48     : $B41E
     STA $48     : $B346 $B415
     STY $48     : $B191