0013
 0256  Hardware problem

 1001  Length of character string is less than one
 1002  Address error in reference to primary data record
 1003  Address error in reference to secondary data record
 1004  Address error in reference to user buffer area
 1005  Address error in reference to system text memory area
 1006
 1008  Invalid Chaprola procedure file (in line 0 - uncompiled program)
 1009  Illegal code in the Chaprola procedure file
 1011  Reading secondary file whose record length is less than or equal to 0
       (file not defined)
 1012  Writing secondary file whose record length is less than or equal to 0
       (file not defined)
 1014  Invalid operation, for example, disk full.
 1024  Too many CALL statements (the number exceeds nine)
 1025  Too many RETURN statements

 2001  IF statement with ; terminator missing
 2004  IF statement with ; terminator missing
 2005  IF statement with ; terminator missing
 2013  IF statement with ; terminator missing

 4760  Maximum record length of secondary file has been exceeded


DOS Error Codes

Version 2 file-function errors
   01  Invalid function number
   02  File not found
   03   Path not found
   04  Too many open files (no open handles left)
   05  Access denied
   06  Invalid handle
   07  Memory control blocks destroyed
   08  Insufficient memory
   09  Invalid memory block address
   10  Invalid environment
   11  Invalid format
   12  Invalid access code
   13  Invalid data
   14  Reserved
   15  Invalid disk drive
   16  Attempt to remove current directory
   17  Not same device
   18  No more files
Mappings to critical error handler
   19  Disk write-protected
   20  Unknown disk unit
   21  Drive not ready
   22  Unknown command
   23  Data error (CRC)
   24  Bad request structure length
   25  Seek error
   26  Unknown media type
   27  Sector not found
   28  Printer out of paper
   29  Write fault
   30  Read fault
   31  General failure

Version 3 additional error codes
   32  Sharing violation
   33  Lock violation
   34  Invalid disk change
   35  FCB unavailable
   36  Sharing buffer overflow
   37-49 Reserved
   50  Network request not supported
   51  Remote computer not listening
   52  Duplicate name on network
   53  Network name not found
   54  Network busy
   55  Network device no longer exists
   56  Network BIOS command limit exceeded
   57  Network adapter hardware error

Errors and Error Recovery

Frozen Keyboard If there is no B in status line, press Ctrl-F2, once.

Blank Screen Press F3 to restore display.

Greek Letters Appear  Press Ctrl-O (letter not zero).

Record Length Problems Screen specified does not fit data file specified.

In Case of Disaster While pressing Alt and Ctrl, press the Del key. Changes
on the displayed screen will be lost.  The file,
ENTRY, will be IN USE.

FILE IN USE >>? RESET .  For example:  >>? RESET ENTRY

SCIOS ERROR 256  A hardware problem exists.