8085 program to multiply two 8 bit numbers using logical instructions

MicrocontrollerMicroprocessor8085

In this program we will see how to multiply using logical operators.

Problem Statement

Write 8085 Assembly language program to multiply two 8-bit numbers using logical operators.

Discussion

We are assuming the first number is in register B, and second number is in register C, and the result must not have any carry.

Here we are multiplying with 04H. We can perform the multiplication by left rotate two times. Assign 06H into B, and 04H into C. Load B to A, then rotate the accumulator two times. Store the result into a specified memory.

Input

Register
Data
B
06
C
04

Flow Diagram

 

Program

Address
HEX Codes
Labels
Mnemonics
Comments
F000
06, 06
 
MVI B,06H
 
F002
0E, 04
 
MVI C,04H
 
F004
78
 
MOV A,B
Load B to A
F005
07
 
RLC
Rotate left without carry
F006
07
 
RLC
Rotate left without carry
F007
32, 00, 80
 
STA 8000H
Store result into 8000H
F00A
76
 
HLT
Terminate the program

Output

Address
Data
8000
18
raja
Published on 11-Mar-2019 11:34:03
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