Online HelpPC 2.10      Quick Reference Utility     Copyright 1991 David Jurgens

 
                          BT - Bit Test	(386+ only)                          
                                                                                
                                                                                
        Usage:  BT      dest,src                                                
        Modifies flags: CF                                                      
                                                                                
                                                                                
        The destination bit indexed by the source value is copied into the      
        Carry Flag.                                                             
                                                                                
                                                                                
                                 Clocks                 Size                    
        Operands         808x  286   386   486          Bytes                   
                                                                                
        reg16,immed8      -     -     3     3            4-8                    
        mem16,immed8      -     -     6     6            4-8                    
        reg16,reg16       -     -     3     3            3-7                    
        mem16,reg16       -     -     12    12           3-7                    
                                                                                
                                                                                
        - see Instruction Timing                                                
                                                                                
                                                                                
 

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