HPlogo System Debug Reference Manual > Chapter 4 System Debug Command Specifications

ERRL[IST]

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E0201 Edition 4 ♥
E0300 Edition 3
E0692 Edition 3

Error list. Lists the most recent error(s) on the error stack.

Syntax



   ERRL[IST] [ALL]

Parameters


ALL

By default, only the most recent (set) of errors are displayed. If the special option ALL is specified, all sets of errors are displayed.

Examples



   $nmdat > dv a.234e0
   Display error.  Check ERRLIST for details.  (error #3800)

   $nmdat > errl
   $47:  Display error.  Check ERRLIST for details.  (error #3800)
   $47:  data read access error  (error #805)
   $47:    READ_CMWORD   bad address: $ VIRT a.234e0
   $47:  No dump file set is opened  (error #5083)

Display error information from the error stack about the last error. Useful additional error information is often available in the error stack. In this example, we see that several error lines were stacked for command number $47. The display command failed because no dump has been opened.

   $nmdat > errl all

   $47:  Display error.  Check ERRLIST for details.  (error #3800)
   $47:  data read access error  (error #805)
   $47:    READ_CMWORD   bad address: $ VIRT a.234e0
   $47:  No dump file set is opened  (error #5083)

   $22:  Error evaluating a predefined function.  (error #4240)
   $22:    function is"vtor"
   $22:    wl vtor(pc)
                      ^
   $22:  Virtual-to-real translation failed.  (error #6013)

   $1f:  Unknown topic for HELP.  (error #1488)

   $1c:  This command is invalid for this program.  (error #6115)
   $1c:       Program: DAT
$1c: mv a.c00012c4 ^ $17: File system error opening an old file. (error #1302) $17: NONEXISTENT PERMANENT FILE (FSERR 52) [LOADMACS]
Display all entries in the error stack. Multiple stacked errors are displayed, along with the command numbers that caused the errors. Errors are recorded for commands $47, $22, $1f, $1c, and $17.

Limitations, Restrictions


The error stack is implemented as a ring, with a total of 10 elements.




ERRD[EL]


E[XIT]