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ERROR MESSAGES
28.3 -- Input/Output Function Errors
the standard error messages explained
above.
This
section
contains
the
system
symbols Trom the MOOS equate Tile that
are used to
re~erence
the I/O errors.
The
following" table
shows the value
Or
the IOCSTA byte,
the system symbol equated
to that value from
the
MDOS
equate
file,
and
the
error
message.
IOCSTA
Value
00
01
02
03
04
05
06
07
08
09
OA
OB
OC
00
OE
OF
10
11
12
13
14
15
16
17
18
19
System
Symbol
I$NOER
I$NOD\I
r$RESV
I$NORV
I$NRDY
I$1\lDV
I$DUPE
I$NONM
I$CLOS
I$EOF
I$FTYP
I$DTYP
I$EOM
I$aUFO
I$CKSM
I$WRIT
I$DELT
I$RANG
I$FSPC
I$DSPC
I$SSPC
I$IDEN
I$RIB
ISDEAL
I$RECL
I$"SECB
Standard Error Message Displayed
by
.MDERR (B=O,
X=IOCB address)
Normal return,
no error
**
28 DEVICE NAME NOT FOUND
**
18
DEVICE ALREADY RESERVED
**
19 DEVICE NOT RESERVED
**
11 DEVICE NOT READY
**
31
INVALID DEVICE
**
06 DUPLICATE FILE NAME
**
04
FILE NAME NOT FOUND
**
20 INVALID
OPEN/CLOSED
FLAG
**
21 END OF FILE
**
14
INVALID FILE TYPE
**
17
INVALID
DATA TRANSFER TYPE
**
37 END OF MEDIA
**
22 BUFFER OVERFLOW
**
23
CHECKSUM
ERROR
**
26 FILE IS WRITE
PROTECTED
**
10 FILE IS DELETE PROTECTED
**
24
LOGICAL SECTOR
NUMBER
OUT
OF
RANGE
**
41
INSUFFICIENT DISK SPACE
**
40 DIRECTORY
SPACE FULL
**
42 SEGMENT DESCRIPTOR SPACE FULL
**
43
INVALID
DIRECTORY ENTRY NO.
AT
nnnn
**
32 INVALID RIB
**
44 CANNOT DEALLOCATE ALL
SPACE,
DIRECTORY
ENTRY EXISTS AT
nnnn
**
45 RECORD LENGTH TOO LARGE
**
52 SECTOR BUFFER SIZE ERROR
28.4 System Error Status Woro
Within
the
operating
system's resident variables is a
two-byte error status word.
Each MOOS command
will
set
or
clear a bit within this status word to indicate the status of
the command's completion.
The
error
status
word
has
the
following format:
Page
28-19
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