1220 PRINT CHR$(7);: GET G$:YES = G$ = "Y":NO = G$ = "N": ON NOT (YES OR NO) GOTO 1220: PRINT G$: RETURN
1400 REM MEMORY DOS
1410 PRINT : PRINT " CURRENT DOS: "(DA +8960)/1024"K DOS 3."DV
1420 IF DV <2 THEN INVERSE : PRINT : PRINT "THIS VERSION OF DOS NOT SUPPORTED!" CHR$(7); CHR$(7); CHR$(7): NORMAL : GOTO 890
1430 PRINT : PRINT "TOP OF FIRST FILE BUFFER (+7):"
1440 PRINT : PRINT "CURRENT:";:DP = FN PK2(DA) +45: GOSUB 1040: PRINT " NORMAL:";:DP = DA: GOSUB 1040: PRINT : IF G THEN PRINT "(LOCATE USER ROUTINES IN ABOVE RANGE.)"
1520 PRINT : PRINT "CURRENT:";:DP = FN PK2(DA +12): GOSUB 1040: PRINT " NORMAL:";:DP = DA: GOSUB 1040: PRINT : PRINT "(ROUTINES IN THE ABOVE RANGE WILL BE": PRINT "WRITEN TO DISK WITH DOS DURING INIT.)"