1_4.txt

This are the Laboratory programs for the 89c51

;ADDITION OF TWO 32 BIT NO
ORG 0000H
MOV R0,30H
MOV A,34H
ADD A,R0		  
;MOV R4,A 
MOV 40H,A  
MOV R1,31H
MOV A,35H
ADDC A, R1
;MOV R5, A
MOV 41H,A  
MOV R2,32H
MOV A,36H
ADDC A, R2
;MOV R6, A
MOV 42H,A  
MOV R3,33H
MOV A,37H
ADDC A, R3
;MOV R7, A
MOV 43H,A  
JNC XXX
MOV 44H, #01
XXX:
END