8 BIT ARITHMETIC OPERATION

1. 8 BIT ARITHMETIC OPERATION

                                    a. 8-BIT ADDITION

AIM: 

            To write an assembly language program for the addition of two 8-bit numbers

APPARATUS REQUIRED:

                                                8085 kit, power chord

ALGORITHM:

            1. Start the program

            2. Initialize the carry register as zero.

            3. Load the accumulator immediately as 51

            4. Load the B register as EB

            5. Add B register as accumulator

            6. Jump on no carry to step 8

            7. Increment the C register

            8. Store the content of accumulator to the memory location 5000

            9. Store the content of C register  

10. Stop the program.

PROGRAM:     

ADDRESS	LABEL	OPCODE	MNEMONICS	OPERAND	COMMENTS
4100		0E, 00	MVI	C, 00	Clear c register
4102		3E,data1	MVI	A.data1	Movedata1toaccumulator
4104		06,data2	MVI	B, data2	Move data2 to B Register
4106		80	ADD	B	Add BReg to accumulator
4107		D2, 0B, 41	JNC	GO (410B)	Jump on No carry to address
410A		0C	INR	C	Increment C Register
410B	GO	32,00,50	STA	5000	Store the result
410E		79	MOV	A, C	Move carry to acc
410F		32,01,50	STA	5001	Store the carry
4112		76	HLT		Stop the program

INPUT:         A = 51,B = EB

OUTPUT: 5000=3C,           5001 = 01 (C)          

RESULT:

            Thus the assembly language program for 8-bit addition is executed and the results are verified.