8d CHECK 1581 DISK FOR CONTROLLER TYPE & J1 JUMPERTn 12/09/87 FRED BOWENo MODIFIED FOR THE C64 BY HOWARD ROSENMANs:x"INSERT ANY FORMATTED DISK IN DRIVE."y"CHECK WHICH UNIT";U: }: 1,U,15 :L474255: H474256 2,U,2,"#"1 1,"M-R"(0)(192)(1): #1,A$e (A$)192 "DEVICE"U"IS NOT A 1581.": 360k : 1,"M-R"(L)(H)(5): MODIFY CONTROLLER CMDS I15:#1,A$:B$B$((A$)3):C$C$A$: 1,"M-W"(L)(H)(5)B$ :6 1,"U1";2;0;1;0 :500: SEEK TRACK 1 & RESETv 1,"U1";2;0;80;0 :600: SEEK TRACK 80 & READ | : 1,"M-W"(8)(64)(1)(0): TEST JUMPER J1 1,"M-R"(8)(64)(1): #1,J$ : 1,"M-W"(L)(H)(5)C$: RESTORE CONTROLLER CMDSG  (F$)0 "SEEK ERROR- CHECK DISKETTE.": : M : ""UNIT"U" CONTAINS A ";: REPORT , T20 "WD1770"; 6 T20 "WD1772"; @" AND J1 IS "; J J$"" "OPEN" T J$"" "CLOSED" h: r2: 1:  |: :6 I1181: 56320I,0: : d X1,F$,R$,E$,D$: T(56329)10(56328):