BASIC/FlashBASIC Debugger

BASIC/FlashBASIC Debugger

The BASIC/FlashBASIC debugger facilitates the debugging of new BASIC or FlashBASIC programs and the maintenance of existing BASIC or FlashBASIC programs.

The BASIC/FlashBASIC debugger has the following general capabilities:

Note: To use the BASIC/FlashBASIC debugger, sys2 privileges are required.
  1. Symbol table (FlashBASIC Debugger)
    When a BASIC or FlashBASIC program is compiled, a symbol table is generated, unless the s (suppress table) option has been used with the compile or basic TCL command. The symbol table is stored as part of the object code and is used by the BASIC/FlashBASIC debugger to reference symbolic variables.
  2. Entering the Debugger (BASIC/FlashBASIC Debugger)
    When the BASIC/FlashBASIC debugger is entered, it indicates the source code line number is to be executed next and prompts for commands with an asterisk. There are several ways to enter the debugger:
  3. Referencing variables
    Once in the debugger, the current value of any variable may be examined (and optionally changed) using the forms:
  4. Zone output specification
    The zone command sets left and right output zone limits of debugger display. Both limit arguments must be numeric, and it is advised that the second argument be larger than the first. Pressing ENTER after the [ command removes zone limits.
  5. FlashBASIC Debugger commands
    When the BASIC/FlashBASIC debugger is entered, it indicates the source code line number to be executed next and prompts for commands with an asterisk.