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Commodore 2031 - PATTERN MATCHING

Commodore 2031
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CBM Series 2001 CBM Series 8000
CBM Series 3000 CBM Series 4000
with with
BASIC 3.0 BASIC 4.0
10 OPEN 1,8,15 PRINT DS$
20 INPUT#1,A,B$,C,D
30 PRINT A,B$,C,D
where A = error message number B$ = error message C = track D = sector
SUMMARY OF CBM FLOPPY ERRROR MESSAGES
0 OK, no error exists.
1 Files scratched response. Not an error condition.
2-19 Unused error messages: should be ignored.
20 Block header not found on disk.
21 Sync character not found.
22 Data block not present.
23 Checksum error in data.
24 Byte decoding error.
25 Write-verify error.
26 Attempt to write with write protect on.
27 Checksum error in header.
28 Data extends into next block.
29 Disk id mismatch.
30 General syntax error.
31 Invalid command.
32 Long line.
33 Invalid filename.
34 No file given.
39 Command file not found.
50 Record not present.
51 Overflow in record.
52 File too large.
60 File open for write.
61 File not open.
62 File not found.
63 File exists.
64 File type mismatch.
65 No block.
66 Illegal track or sector.
67 Illegal system track or sector.
70 No channels available.
71 Directory error.
72 Disk full or directory full.
73 Power up message, or write attempt with DOS mismatch.
74 Drive not ready.
76

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