Microprocessor 8085 program to find the Multiplication of two 8-bit numbers

In the third year of the B.Sc. Physics program under TANSCHE, it's really important to learn how microprocessors work. One of the main experiments is with the Microprocessor 8085, which is a popular 8-bit processor. In this experiment, students get to practice basic math operations.

In this blog post, we will talk about the experiment called "Multiplication of Two 8-bit Numbers with the Microprocessor 8085." This hands-on activity helps students understand how the 8085 microprocessor works, including programming and memory tasks. By the end of this experiment, you'll have a good grasp of how the 8085 processes data and performs math operations, giving you a strong base in microprocessor systems.

Microprocessor 8085 program to find the Multiplication of two 8-bit numbers

Aim:

Write an assembly language program to multiplication of two 8-bit numbers using microprocessor 8085.

Apparatus required:

Microprocessor 8085 kit, power supply etc

Program:

Multiplication of two 8-bit numbers

Memory address	Machine code	Labels	Mnemonics	Operands	Comments
8000	2A		LHLD	8501H	Loads content of 8502 in H and 8501 in L
8001	01
8002	85
8003	EB		XCHG		Exchange contents of H with D and L with E
8004	4A		MOV	C, D	Copies the content of D in C
8005	0E		MVI	C, 00H	Store 00H to C register
8006	00
8007	21		LXI	H, 0000H	Assigns 00 to H and 00 to L
8008	00
8009	00
800A	19	BEHIND	DAD	D	Adds HL and DE and assigns the result to HL
800B	0D		DCR	C	Decrements C by 1
800C	CA		JNZ	BEHIND	Jump on no zero to 800A
800D	0A
800E	80
800F	22		SHLD	8503	Stores the values of H at 8504 and L at 8503
8010	03
8011	85
8012	76		HLT		Stop the program

Example:

Multiplication of two 8-bit numbers

First input location 8501H - 43H

Second input location 8502H - 07H

Result location 8503H - D5H

Result location 8504H - 01H

Procedure:

Result: 

The assembly programmes for microprocessor 8085 for multiplication of two 8-bit numbers were written and executed using the microprocessor 8085 kit.

Click here for Division
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