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Commodore BASIC  |  1990-02-12  |  555b  |  21 lines
  1. 1 A=USR(0),0,1,4
  2. 2 A=USR(33),0:A=USR(34),0,Y,6:A=USR(34),X,255,7:A=USR(17):A=USR(1)
  3. 3 OPEN15,D0,15,"I":CLOSE15:POKE679,23
  4. 4 PRINTCHR$(14)"[147][208]RINT AT [204]EFT, [195]ENTER, OR [210]IGHT ?"
  5. 5 GETA$:IFA$=""THEN5
  6. 6 IFA$="L"THENPOKE679,6:GOTO10
  7. 7 IFA$="C"THENPOKE679,23:GOTO10
  8. 8 IFA$="R"THENPOKE679,40:GOTO10
  9. 9 LOAD"CMND",D0
  10. 10 OPEN4,4,5:CMD4
  11. 11 SYS36891
  12. 12 PRINT#4:CLOSE4
  13. 13 PRINT"[147] ! TO SWITCH SCREENS AND PRINT,"
  14. 14 PRINT"[198]1 TO PRINT THE SAME SCREEN AGAIN,"
  15. 15 PRINT"OR ANY OTHER KEY TO EXIT."
  16. 16 GETA$:IFA$=""THEN16
  17. 17 IFA$="!"THENSYS36867:GOTO4
  18. 18 IFA$=CHR$(133)THEN4
  19. 19 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
  20. 20 LOAD"CMND",D0
  21.