Error Meaning
0 *Invalid* : VS and R0 = 0 should never be used
<&100 Internal filecore error number
b31 set b0-20 : disc address, shifted down 8 bits
b21-23 : drive number
b24-29 : disc error number
b30 : 0
FileCore_DiscOp FS specific errors
1772 floppy discs:
Bit Meaning
7 Drive was already running
6 Drive is write protected
5 Write failed
4 Record not found
3 CRC error
2 Lost data
1 Track 0 found
0 Drive busy
ST506 hard discs:
Value Meaning
&1 Abort command accepted
&2 Invalid command issued
&3 Invalid command parameter
&4 Head positioning, disc access, or drive check before SPC issued
&5 TST command after SPC command
&6 USELD for a drive has not been returned
&7 Write fault detected by interface
&8 Drive not ready
&9 Seek complete timed out
&A SEK, or disc access issued during a seek
&B Next cylinder address is too big
&C Invalid step rate: highest-speed seek specified in normal mode
&D SEK, or disc access issued to drive with seek error
&E Data overrun (memory is slower than the drive)
&F Head address too high
&10 Error correction code detected an error
&11 CRC error in data area
&12 Error correction code corrected an error
&13 Error correction code failed in data area
&14 In CMPD command data mismatched from host and disc
&15 CRC in ID field (never generated)
&16 ID search timed out
&17 ID area has bad address mark
&18 Missing address mark
&19 Drive write protected
IDE discs:
Value Meaning
&2 Command aborted by controller
&7 Write fault
&8 Drive not ready
&9 Track 0 not found
&13 Uncorrected data error
&16 Sector ID field not found
&17 Bad block mark detected
&18 No data address mark
&20 No DRQ when expected
&21 Drive busy when commanded
&22 Drive busy on command completion
&23 Controller did not respond within timeout
&24 Unknown code in error register
710/711 floppy discs:
Value Meaning
&1 Fatal error, controller hardware error
&2 Fatal error, command timed out; drive problem
&3 Fatal error, track 0 not found; drive problem
&10 Critical error, seek failed
&20 Recoverable error, non specific command error
&21 Data overrun
&22 Data CRC error
&23 Sector or ID not found
&24 Missing address mark
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