1 A=USR(0),0,1,4
2 A=USR(33),0:A=USR(34),0,Y,6:A=USR(34),X,255,7:A=USR(17):A=USR(1)
3 OPEN15,D0,15,"I":CLOSE15:POKE679,0
4 PRINTCHR$(14)"[147][208]RINT POSITION (0-3)?"
5 GETA$:IFA$=""THEN5
6 PRINT"[147]":IFA$>"0"ANDA$<"4"THENPOKE679,20*VAL(A$)
7 SYS32768
8 A=USR(0),0,1,4:A=USR(33),0:A=USR(34),0,Y,6:A=USR(34),X,255,7:A=USR(17)
9 A=USR(1):OPEN15,D0,15,"I":CLOSE15
10 PRINTCHR$(14);" ! TO SWITCH SCREENS AND PRINT,"
11 PRINT"[198]1 TO PRINT THE SAME SCREEN AGAIN,"
12 PRINT"OR ANY OTHER KEY TO EXIT."
13 GETA$:IFA$=""THEN13
14 IFA$="!"THENSYS36867:GOTO4
15 IFA$=CHR$(133)THEN4
16 PRINT"[147]":A=USR(0),1,7,14:A=USR(1):A=USR(16):A=USR(34),16,Y,6:A=USR(34),X,231,7
17 LOAD"CMND",D0