A 8051 MicroController Write a program which adds the follow

A. )8051 MicroController: Write a program which adds the following numbers together and stores the results in BCD.

Addition of unsigned numbers is a need for many programs. Perform the following calculation manually fill in the following: F5H OBH a. F5H binary binary binary d. Parity bit e. Carry bit f. Auxiliary Carry

Solution

A) MOV DPTR,#F5H

MOVX A,@DPTR

MOV B,A

MOV DPTR,#0BH

MOVX A,@DPTR

ADDC A,B

B)

a) F5 H=1111 0101 H

b) 0B H=0000 1010 H

F5 H= 1111 0101 H

0B H= 0000 1010 H

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1 1 1 1 1 1 1 1

Carry Flag=0

Auxilary Carry flag=0

Parity Fag=1(even Parity)