CONTENTS

  Title Page

  Copyright Page

  Preface

  DELTA/XDELTA DESCRIPTION

  1       Entering and Exiting from DELTA/XDELTA
    1.1        Invoking DELTA
    1.2        Exiting from DELTA
    1.3        Invoking XDELTA
      1.3.1        Booting XDELTA on a VAX 9000 Computer
      1.3.2        Booting XDELTA on a VAX 8530, 8550, 8810 (8700), 8820, 8820-N (8800), 8830, or 8840 Computer
      1.3.3        Booting XDELTA on a VAX 8600 or a VAX 8650 Computer
      1.3.4        Booting XDELTA on a VAX 8200, 8250, 8300, or 8350 Computer
      1.3.5        Booting XDELTA on a VAX 6000 Series Computer
      1.3.6        Booting XDELTA on a VAXstation 3100 or MicroVAX 3100 Series or VAXstation 4000 Series Computer
      1.3.7        Booting XDELTA on a VAXft 3000, VAXft-410, VAXft-610, or VAXft-612 Computer
      1.3.8        Booting XDELTA on a MicroVAX 2000, VAXstation 2000, MicroVAX 3300/3400 Series, VAXstation 3520, VAXstation 3V
      1.3.9        Booting XDELTA on a VAX-11/780 or a VAX-11/785 Computer
      1.3.10       Booting a VAX-11/730 Computer Using the VMS Console TU58
    1.4        Requesting an Interrupt
    1.5        Accessing the Initial Breakpoint
    1.6        Proceeding from Initial XDELTA Breakpoints
    1.7        Exiting from XDELTA

  2       DELTA and XDELTA Symbols and Expressions
    2.1        Symbols Supplied by DELTA and XDELTA
    2.2        Forming Numeric Expressions

  3       Guidelines for Debugging Programs with DELTA or XDELTA
    3.1        Referencing Addresses
    3.2        Referencing Registers
    3.3        Interpreting the Error Message
    3.4        Using XDELTA on Multiprocessor Systems

  DELTA/XDELTA USAGE SUMMARY

  DELTA/XDELTA COMMANDS
    [ (Set Display Mode)
    / (Open Location and Display Contents in Prevailing Width Mode)
    !  (Open Location and Display Contents in Instruction Mode)



    " (Open Location and Display Contents in ASCII)

    ;B (Breakpoint)
    ;P (Proceed from Breakpoint)
    ;G (Go)
    S (Step Instruction)
    O (Step Instruction Over Subroutine)
    ' (Deposit ASCII String)
    ;E (Execute Command String)
    ;X (Load Base Register)
    = (Display Value of Expression)
    ;M (Set All Processes Writable)
    ;L (List Names and Locations of Loaded Executive Images)
    EXIT (Exit from DELTA Debugging Session)

  A   Sample DELTA Debug Session

  EXAMPLES

  A-1        Program for Getting LOGINTIMs

  A-2        LOGINTIM Program .Map File

  A-3        Delta Debugging Session Example

  TABLES

  DELT-1    Boot Command Qualifier Values

  DELT-2    BOOT Command Qualifiers for the VAX 9000 Computer

  DELT-3    Boot Command Qualifiers

  DELT-4    DELTA/XDELTA Symbols

  DELT-5    Arithmetic Operators

  DELT-6    DELTA/XDELTA Command Summary