Online HelpPC 2.10      Quick Reference Utility     Copyright 1991 David Jurgens

 
                    DAS - Decimal Adjust for Subtraction                    
                                                                                
                                                                                
        Usage:  DAS                                                             
        Modifies flags: AF CF PF SF ZF (OF undefined)                           
                                                                                
                                                                                
        Corrects result (in AL) of a previous BCD subtraction operation.        
        Contents of AL are changed to a pair of packed decimal digits.          
                                                                                
                                                                                
                                 Clocks                 Size                    
        Operands         808x  286   386   486          Bytes                   
                                                                                
        none              4     3     4     2             1                     
                                                                                
                                                                                
        - see Instruction Timing                                                
                                                                                
                                                                                
 

[helppc.bosbyte.nl]                   das                     Home  Back  Topics