Online HelpPC 2.10      Quick Reference Utility     Copyright 1991 David Jurgens

 
                               SUB - Subtract                               
                                                                                
        Usage:  SUB     dest,src                                                
        Modifies flags: AF CF OF PF SF ZF                                       
                                                                                
                                                                                
        The source is subtracted from the destination and the result is         
        stored in the destination.                                              
                                                                                
                                 Clocks                 Size                    
        Operands         808x  286   386   486          Bytes                   
                                                                                
        reg,reg           3     2     2     1             2                     
        mem,reg         16+EA   7     6     3            2-4  (W88=24+EA)       
        reg,mem          9+EA   7     7     2            2-4  (W88=13+EA)       
        reg,immed         4     3     2     1            3-4                    
        mem,immed       17+EA   7     7     3            3-6  (W88=25+EA)       
        accum,immed       4     3     2     1            2-3                    
                                                                                
                                                                                
        - see Instruction Timing                                                
                                                                                
                                                                                
 

[helppc.bosbyte.nl]                   sub                     Home  Back  Topics