HPlogo System Debug Reference Manual > Chapter 6 System Debug Command Specifications M-X

SYMOPEN

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E0201 Edition 4 ♥
E0300 Edition 3
E0692 Edition 3

Opens a symbolic data type file and sets up pointers to the symbolic debug records.

Syntax


   SYMOPEN filename [symname]
The SYMOPEN command must be used to open a symbolic data type file before the symbolic formatting command and functions can be used.

Parameters

filename

The file name of the symbolic data type file. The file must contain symbolic debug records.

symname

The symbolic name under which the symbolic data type file is referenced in the formatter commands. If this parameter is omitted, the file name will be used as the symbolic name.

Examples


   $nmdat > symopen SYMOS.PUB.SYS OS

   $nmdat >
Open the symbolic file SYMOS.PUB.SYS and assign the symbolic name OS to it.

Limitations, Restrictions

Before a symbolic data type file is ready to be opened with SYMOPEN, ensure that the following steps have been followed:

  1. The types must be compiled with the $SYMDEBUG 'xdb'$ option.

  2. The program containing the types must have at least one statement.

  3. The relocatable library generated by the compiler must be run through LINKEDIT.

  4. The program file generated by LINKEDIT must be run through PXDB.

  5. The modified program file generated by PXDB must be prepared with SYMPREP in DAT or Debug.

  6. The program file (symbolic data type file) is now ready to be opened with SYMOPEN.



SYML[IST]

SYMPREP