;this revision of Program 3-1a shows how to save the flags
;	before updating the pointers
 BACK: 	MOV 	EAX,DWORD PTR [SI] 	;move the operand to EAX 
 	ADC 	EAX,DWORD PTR [DI] 	;add the operand to EAX 
 	MOV 	DWORD PTR [BX],EAX 	;store the sum 
 	PUSHF				;save the flags
        ADD     SI,4                    ;point to next dword of operand1
        ADD     DI,4                    ;point to next dword of operand2
        ADD     BX,4                    ;point to next dword of sum 
 	POPF				;restore the flags
        LOOP    BACK                    ;if not finished, continue adding