8 BIT DIVISION

AIM:

            To write an assembly language program in microcontroller to perform division between two 8 bit numbers.

APPARATUS REQUIRED:

            8051 kit, power chord

ALGORITHM:

1.      Start the program.

2.      Get the dividend (65) in accumulator.

3.      Get the divisor (08) in B reg.

4.      Divide the two data.

5.      Move the address location to Data Pointer.

6.      Store the remainder result in the Data Pointer.

7.      Increment the Data Pointer.

8.      Move the content of B reg (quotient) to accumulator.

9.      Move the content of accumulator to the address location in DPTR.

10. Stop the program.

PROGRAM:    

ADDRESS	LABEL	OPCODE	MNEMONICS	OPERAND	COMMENTS
4400		74	MOV	A, #Data 1	Move the dividend (65) to accumulator.
4401		65
4402		75	MOV	B, #Data 2	Move the divisor (08) to B reg.
4403		F0
4404		08
4405		84	DIV	A,B	Dividend the content of Acc and B reg.
4406		90	MOV	DPTR, #4500	Move the address location 4500 to DPTR.
4407		45
4408		00
4409		F0	MOVX	@DPTR,A	Move the content of accumulator to the address location (4500) in DPTR
440A		A3	INC	DPTR	Increment the content of DPTR.
440B		E5	MOV	A,B	Move the content of B to acc.
440C		F0
440D		F0	MOVX	@DPTR,A	Move the content of accumulator to the address location (4501) in DPTR
440E		80	HERE:SJMP HERE
440F		FE

INPUT:

4401: 65                                                                               4404: 08

OUTPUT:

4500: 0C

4501: 00

RESULT:

            Thus an assembly language program for the division of two 8 bit numbers in microcontroller was written and executed successfully.