M100 ERROR CODES (including Chipmunk) in alphabetical order, together with some common cures. W. H. Calvin /0 11 Division by zero AO 53 File already open (do CLOSE before OPEN) BN 51 Bad file number (do MAXFILES before OPEN) BS 9 Bad subscript (e.g., >10 without DIM) CC 67 CRC error (disk media problem, retry, reinsert disk) CF 58 File not open (do OPEN) CN 17 Can't continue DD 10 Double dimensioned array DF 63 Disk full DN 60 bad drive number DS 56 Direct statement in BASIC file (look for misplaced line ends) EF 54 Input past End of File (prevent with EOF test before input) FC 5 Illegal function call FE 62 File already exists (F6 rename file) FF 52 File not found FL 57 Undefined errors ID 12 Illegal direct command in BASIC IE 50 Undefined error IO 18 I/O error LD 66 lost data (hardware error) LS 15 String too long (e.g., >255 characters) MO 22 Missing operand ND 68 No Disk in drive NF 1 NEXT without FOR NM 55 Bad file name NR 71 Drive Not Ready (not plugged in or turned on) NR 19 No RESUME OD 4 Out of DATA OM 7 Out of Memory OS 14 Out of string space (use CLEAR) OV 6 Overflow RC 70 ROM CRC error (Chipmunk ROM is bad) RF 65 Record not Found (hardware error: do LFILES OFF then press RESET as a precaution against more trouble later) RG 3 RETURN without GOSUB (need END to prevent overrunning) RW 20 RESUME without ERROR (need END to prevent overrunning) SN 2 Syntax error ST 16 String formula too complex TM 13 Type mismatch TS 61 bad track/sector in DSKI$ or DSKO$ UE 21 Undefined error UL 8 Undefined line WP 64 write protected disk (move corner tab)