Ex parte JOHN E. BISHOP et al. - Page 4




          Appeal No. 95-3042                                                          
          Application No. 08/098,501                                                  


          modify Padawer by saving the variable value information for each            
          instruction to a record as is done by Balzer because of a "desire to        
          improve the program debugging process."                                     
                    The examiner also admits [answer, page 6] that neither            
          Padawer nor Balzer teaches the use of different logs for holding the        
          value information. "Nor is there a disclosure of the method for             
          retrieving the information from the plural logs as in claims 1 and          
          10."  Nevertheless, the examiner concludes that it would have been          
                    obvious to one of ordinary skill in the art                       
                    to store the variable value information for                       
                    distinct runs or simulations in distinct                          
                    logs since storage in the same log would                          
                    require an overwrite of previous                                  
                    information.  It would be very helpful to a                       
                    debugger to maintain the results of                               
                    different simulations or runs so as to be                         
                    able to compare them to see if results                            
                    changed.                                                          

                    The examiner continues, at page 6 of the answer:                  
                    The modification to include plural logs                           
                    would clearly necessitate the retrieval of                        
                    information from the logs as in claims 1 and                      
                    10. Balzer teaches on page 572 that the                           
                    history is searched in a forward or backward                      
                    direction for the next occurrence of a value                      
                    change depending upon which direction the                         
                    execution is going.  This teaches the                             
                    searching claimed in claims 1 and 10 as they                      
                    are best understood.  It would have been                          
                    obvious to modify Padawer et al by including                      
                    the plural logs as discussed above.  And                          
                    this modification would necessitate the                           

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