8-BIT MULTIPLICATION

AIM

To perform 8-bit multiplication of two 8-bit data using immediate addressing and store the result in memory.

THEORY

In this Experiment the Multiplicand Data is entered in B register and the Multiplier Value is entered in Accumulator Data Register, Using indirect addressing multiplication of two 8-bit data is stored in Resultant address

GIVE INPUT TO THIS LOCATION:

8600 – Multiplicand
8601 – Multiplier

RESULT ADDRESS:

8700

ASSEMBLY PROGRAM TO MULTIPLY TWO 8 BIT NUMBER

MEMORY ADDRESS	OPCODES	MNEMONICS
8500	90 86 00	MOV DPTR,#8600H
8503	E0	MOVX A,@DPTR
8504	F5 F0	MOV B,A
8506	90 86 01	MOV DPTR,#8601H
8509	E0	MOVX A,@DPTR
850A	A4	MUL AB
850B	90 87 01	MOV DPTR,#8701H
850E	F0	MOVX @DPTR,A
850F	90 87 00	MOV DPTR,#8700H
8512	E5 F0	MOV A,B
8514	F0	MOVX @DPTR,A
8515	80 FE	E: SJMP E

PROCEDURE

☞Enter the input data in memory location 8600 to 8601.

☞Enter the above opcodes from 8500.

☞Execute the program.

☞Result stored in 8700 & 8701. Change data and check result in 8700, 8701.

RESULT

Thus the multiplication of two 8 bit numbers is stored in the resultant memory.