OS-9 Error Codes

The following table shows OS-9 error codes in hexadecimal and

decimal. Error codes other than those listed are generated by

programming languages or user programs.


OS-9 Error Codes
Code
 HEX DEC Code Meaning
$01 001 UNCONDITIONAL ABORT. An error occurred
 from which OS-9 cannot recover. All processes
 are terminated.
 $02 002 KEYBOARD ABORT. You pressed BREAK to
 terminate the current operation.
 $03 003 KEYBOARD INTERRUPT. You pressed
 sHm eR~a,K either to cause the current opera
 tion to function as a background task with no
 video display or to cause the current task to
 terminate.
 $B7 183 ILLEGAL WINDOW TYPE. You tried to
 define a text type window for graphics or used
 illegal parameters.
 $B8 184 WINDOW ALREADY DEFINED. You tried to
 create a window that is already established.
 $B9 185 FONT NOT FOUND. You tried to use a win
 dow font that does not exist.
 $BA 186 STACK OVERFLOW. Your process (or pro
 cesses) requires more stack space than is
 available on the system.
 $BB 187 ILLEGAL ARGUMENT. You have used an
 argument with a command that is
 inappropriate.
 $BD 189 ILLEGAL COORDINATES. You have given
 coordinates to a graphics command which are
 outside the screen boundaries.

 A-1
 OS-9 Commands Reference
Code
 HEX DEC Code Meaning
$BE 190 INTERNAL INTEGRITY CHECK. System
 modules or data are changed and no longer
 reliable.
 $BF 191 BUFFER SIZE IS-TOO SMALL. The data you
 assigned to a buffer is larger than the buffer.
 $CO 192 ILLEGAL COMMAND. You have issued a
 command in a form unacceptable to OS-9.
 $C1 193 SCREEN OR WINDOW TABLE IS FULL. You
 do not have enough room in the system win
 dow table to keep track of any more windows
 or screens.
 $C2 194 BAD/UNDEFINED BUFFER NUMBER. You
 have specified an illegal or undefined buffer
 number.
 $C3 195 ILLEGAL WINDOW DEFINITION. You have
 tried to give a window illegal parameters.
 $C4 196 WINDOW UNDEFINED. You have tried to
 access a window that you have not yet defined.
 $C8 200 PATH TABLE FULL. OS-9 cannot open the
 file because the system path table is full.
 $C9 201 ILLEGAL PATH NUMBER. The path number
 is too large, or you specified a non-existent
 path.
 $CA 202 INTERRUPT POLLING TABLE FULL. Your
 system cannot handle an interrupt request,
 because the polling table does not have room
 for more entries.
 $CB 203 ILLEGAL MODE. The specified device cannot
 perform the indicated input or output function.
 $CC 204 DEVICE TABLE FULL. The device table does
 not have enough room for another device.

 A-2
 OS-9 Error Codes / A
Code
 HEX DEC Code Meaning
$CD 205 ILLEGAL MODULE HEADER. OS-9 cannot
 load the specified module because its sync
 code, header parity, or cyclic redundancy code
 is incorrect.
 $CE 206 MODULE DIRECTORY FULL. The module
 directory does not have enough room for
 another module entry.
 $CF 207 MEMORY FULL. Process address space is full
 or your computer does not have sufficient mem
 ory to perform the specified task.
 $DO 208 ILLEGAL SERVICE REQUEST. The current
 program has issued a system call containing
 an illegal code number.
 $D1 209 MODULE BUSY. Another process is already
 using a non-shareable module.
 $D2 210 BOUNDARY ERROR. OS-9 has received a
 memory allocation or deallocation request that
 is not on a page boundary.
 $D3 211 END OF FILE. A read operation has encoun
 tered an end-of-file character and has
 terminated.
 $D4 212 RETURNING NON-ALLOCATED MEMORY.
 The current operation has attempted to deallo
 cate memory not previously assigned.
 $D5 213 NON-EXISTING SEGMENT. The file struc
 ture of the specified device is damaged.
 $D6 214 NO PERMISSION. The attributes of the speci
 fied file or device do not permit the requested
 access.
 $D7 215 BAD PATHNAME. The specified pathlist con-

 ' tains a syntax error, for instance an illegal
 character.
 $D8 216 ' PATH NAME NOT FOUND. The system can
 not find the specified pathlist.
 A-3
 OS-9 Commands Reference
Code
 HEX DEC Code Meaning
$D9 217 SEGMENT LIST FULL. The specified file is
 too fragmented for further expansion.
 $DA 218 FILE ALREADY EXISTS. The specified file
 name already exists m the specified directory.
 $DD 219 ILLEGAL BLOCK ADDRESS. The file struc
 ture of the specified device is damaged.
 $DC 220 PHONE HANGUP - DATA CARRIER LOST.
 The data carrier detect is lost on the RS-232
 port.
 $DD 221 MODULE NOT FOUND. The system received
 a request to link a module that is not in the
 specified directory.
 $DF 223 SUICIDE ATTEMPT. The current operation
 has attempted to return to the memory loca
 tion of the stack.
 $EO 224 ILLEGAL PROCESS NUMBER. The specified
 process does not exist.
 $E2 226 NO CHILDREN. The system has issued a
 wait service request but the current process
 has no dependent process to execute.
 $E3 227 ILLEGAL SWI CODE. The system received a
 software interrupt code that is less than 1 or
 greater than 3.
 $E4 228 PROCESS ABORTED. The system received a
 signal Code 2 to terminate the current
 process.
 $E5 229 PROCESS TABLE FULL. A fork request can
 not execute because the process table has no
 room for more entries.
 $E6 230 ILLEGAL PARAMETER AREA. A fork call
 has passed incorrect high and low bounds.
 $E7 231 KNOWN MODULE. The specified module is
 for internal use only.

 A-4

Code
 HEX DEC Code Meaning
$E8 232 INCORRECT MODULE CRC. The cyclic
 redundancy code for the module being
 accessed is bad.
 $E9 233 SIGNAL ERROR. The receiving process has a
 previous, unprocessed signal pending.
 $EA 234 NON-EXISTENT MODULE. The system can
 not locate the specified module.
 $EB 235 BAD NAME. The specified device, file, or mod
 ule name is illegal.
 $EC 236 BAD HEADER. The specified module header
 parity is incorrect.
 $ED 237 RAM FULL. No free system random access
 memory is available: the system address space
 is full, or there is no physical memory avail
 able when requested by the operating system
 -- in the system state.
 $EE 238 UNKNOWN PROCESS ID. The specified pro
 cess ID number is incorrect.
 $EF 239 NO TASK NUMBER AVAILABLE. All avail
 able task numbers are in use.


' cases, the codes are hardware-dependent. Consult your device










OS-9 Commands Reference
Code
 HEX DEC Code Meaning
$F3 243 CRC ERROR. A cyclic redundancy code error
 occurred on a read or write verify.
 $F4 244 READ ERROR. A data transfer error occurred
 during a disk read operation, or there is a
 SCF (terminal) input buffer overrun.
 $F5 245 WRITE ERROR. An error occurred during a
 write operation.
 $F6 246 NOT READY. The device specified has a not
 ready status.
 $F7 247 SEEK ERROR. The system attempted a seek
 operation on a non-existent sector.
 $F8 248 MEDIA FULL. The specified media has insuf
 ficient free space for the operation.
 $F9 249 WRONG TYPE. An attempt is made to read
 incompatible media (for instance an attempt to
 read double-side disk on single-side drive).
 $FA 250 DEVICE BUSY. A non-shareable device is in
 use.
 $FB 251 DISK ID CHANGE. You changed diskettes
 when one or more files are open.
 $FC 252 RECORD IS LOCKED-OUT. Another process
 is accessing the requested record.
 $FD 253 NON-SHARABLE FILE BUSY. Another pro
 cess is accessing the requested file.

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