Ex parte STEWART et al. - Page 3




          Appeal No. 96-1422                                                          
          Application 08/048,339                                                      


               We reverse the rejection of claims 6 to 12 under 35                    
          U.S.C.                                                                      
           103.                                                                      
               As the title of the application reflects, the disclosed                
          and claimed invention relates to a method to reduce control                 
          store space in a VLSI central processor integrated circuit                  
          chip which has been pipelined.  There are a plurality of read               
          only memory (ROM) control stores utilized to implement the                  
          microprogrammed execution unit.  The control words of the                   
          control stores have                                                         
          been subdivided into primary nanocontrol words and secondary                
          nanocontrol words, where certain ones of the secondary                      
          nanocontrol words have been specified as being in a “guarded”               
          field or a “don’t care” field.  Clause D of each independent                
          claim 6 and 12 on appeal relates to the combining of first and              
          second secondary nanocontrol words into a single secondary                  
          nanocontrol word based upon specifically recited conditions or              
          relationships among these various “guarded” and “don’t care”                
          control fields.                                                             
               Essentially, none of these very specific features of the               
          disclosed and claimed invention are found in either of the                  
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