1.d. 8-BIT DIVISION.

1.d. 8-BIT DIVISION

AIM:

            To write an assembly language program for the division of two 8 – bit number.

APPARATUS REQUIRED:

                                    8085 kit, power chord

ALGORITHM:

1.      Start the program                                   

2.      Load the divisor to accumulator

3.      Load the dividend to B-register          

4.      Compare the B-register value with the accumulator                                   

5.      Jump on carry to step - 9

6.      Subtract B-register value with accumulator

7.      Increment the C-register accumulator           

8.      Jump to step – 4

9.      Store the content of accumulator and C-register

10.  Stop the program

PROGRAM:

ADDRESS	LABEL	OPCODE	MNEMONICS	OPERAND	COMMENTS
4500		3E,data	MVI	A, data1	Move dividend to   accumulator
4502		06,data	MVI	B, data2	Move divisor to B Register.
4504		0E, 00	MVI	C, 00	Clear c register
4506	LOOP2	B8	CMP	B	Compare b reg and accumulator.
4507		DA, 0F, 45	JC	LOOP1	Jump on carry to adder
450A		90	SUB	B	Repetitive subtraction for division
450B		0C	INR	C	Increment c register
450C		C3, 06,45	JMP	LOOP2	Jump to Loop2
450F	LOOP1	32,00,50	STA	5000	Store the remainder.
4512		79	MOV	A, C	Move c reg to accumulator
4513		32,01,50	STA	5001	Store the quotient.
4516		76	HLT		Stop the process.

INPUT:  A – CD            B – AB      OUTPUT:     5001 – OD (c)           5000 – OC(R)

RESULT:

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