10 REM         USER BOOT
20 REM
30 POKE53281,0:POKE53820,0
40 INPUT"[147][152] DEVICE NUMBER 8[157][157][157]";C$:DV=VAL(C$):IFDV<8ORDV>9GOTO40
50 POKE49178,DV
60 PRINT"[147]POKE43,1:POKE44,16:POKE4096,0:CLR"
70 PRINT"LOAD"CHR$(34)"USER CONV*"CHR$(34)","DV"
80 [153]"RUN"
90 [129]X[178]631[164]640:[151]X,13:[130]:[151]198,10:[128]