Advance microprocessor 8086 programs

Arithmetic operation

Practical-1

Aim: Write a program to addition of two numbers.

Software requirements: TASM Simulator

Logic:

assume cs:code,ds:data

data segment

a dw 0001h

b dw 0005h

sum dw ?

data ends

code segment

start: mov ax,data

mov ds,ax

mov ax,a

mov bx,b

add ax,bx

mov sum,ax

mov ah,04ch

int 21h

code ends

end start

Output:

Conclusion:

The program of  addition of two numbers is successfully executed with the use of tasam simulator.

Practical-2

Aim: Write a program to multiply two 16 bit numbers.

Software requirements: TASM Simulator

Logic:

assume cs:code,ds:data

data segment

a dw 0002h

b dw 0005h

multi dw ?

data ends

code segment

start:mov ax,data

mov ds,ax

mov ax,a

mov bx,b

mul bx

mov multi,ax

mov ah,04ch

int 21h

code ends

end start

Output:

Conclusion:

The program of to multiply two 16 bit numbers is successfully executed with the use of tasam simulator.

Practical-3

Aim: Write a program to add and subtract two 4 digit BCD numbers.

Software requirements: TASM Simulator

Logic:

ASSUME CS:CODE,DS:DATA

DATA SEGMENT

A DB 41H

B DB 29H

SUM DB ?

DIF DB ?

DATA ENDS

CODE SEGMENT

START: MOV AX,DATA

MOV DS,AX

MOV AL,A

MOV CL,AL

MOV BL,B

ADD AL,BL

DAA

MOV SUM,AL

MOv AL,CL

SUB AL,BL

DAS

MOV DIF,AL

MOV AH,04CH

INT 21H

CODE ENDS

END START

Output:

Conclusion:

The program of  add and subtract two 4 digit BCD numbers is successfully executed with the use of tasam simulator

Practical-4

Aim: Write a program to find sum of an integer 8-bit array.

Software requirements: TASM Simulator

Logic:

ASSUME CS:CODE,DS:DATA

DATA SEGMENT

A DB 01H,05H,06H

SUM DB ?

DATA ENDS

CODE SEGMENT

START: MOV AX,DATA

MOV DS,AX

MOV CL,03H

MOV AL,00H

MOV BL,00H

LEA SI,A

AGAIN:

MOV BL,[SI]

ADD AL,BL

INC SI

LOOP AGAIN

DAA

MOV SUM,AL

MOV AH,04CH

INT 21H

CODE ENDS

END START

Output:

Conclusion:

The program of  find sum of an integer 8-bit array is successfully executed with the use of tasam simulator.

Practical-5

Aim: Write a program to count the number of odds and evens from the given 8-bit array.

Software requirements: TASM Simulator

Logic:

assume cs:code,ds:data

data segment

n dw 1001h,8002h,0a003h,0b004h,5505h

d db ?

data ends

code segment

start : mov ax,data

mov ds,ax

mov cl,05h

lea si,n

again : mov ax,[si]

shl ax,1

jnc nocount

inc dl

nocount : inc si

shr ax,1

dec cl

jnz again

mov d,dl

mov ah,04ch

int 21h

code ends

end start

Output:

Conclusion:

The program of count the number of odds and evens from the given 8-bit array is successfully executed with the use of tasam simulator

Practical-6

Aim: Write a program to count the number of 1’s in 16-bit data.

Software requirements: TASM Simulator

Logic:

ASSUME CS:CODE,DS:DATA

DATA SEGMENT

N DW 2306H

O DB ?

DATA ENDS

CODE SEGMENT

START : MOV AX,DATA

MOV DS,AX

MOV AX,N

MOV CL,0FH

MOV DL,00H

AGAIN  :  SHR AX,1

JNC NOCOUNT

INC DL

NOCOUNT :  LOOP AGAIN

MOV O,DL

MOV AH,04CH

INT 21H

CODE ENDS

END START

Output:

Conclusion:

The program of count the number of 1’s in 16-bit data is successfully executed with the use of tasam simulator.

Practical-7

Aim: Write a program to find a factorial of a given number.

Software requirements: TASM Simulator

Logic:

ASSUME CS:CODE,DS:DATA

DATA SEGMENT

N DW 3

ANS DW ?

DATA ENDS

CODE SEGMENT

START: MOV AX,DATA

MOV DS,AX

MOV AX,0001H

MOV CX,N

AGAIN:

MUL CX

DEC CX

JNZ AGAIN

MOV ANS,AX

MOV AH,04CH

INT 21H

CODE ENDS

END START

Output:

Conclusion:

The program of find a factorial of a given number is successfully executed with the use of tasam simulator.

Practical-8

Aim: Write a program to find factors of the given number.

Software requirements: TASM Simulator

Logic:

ASSUME CS:CODE,DS:DATA

DATA SEGMENT

N Dw 06H

ANS Dw ?

MSG DB '  FACTORS '

DATA ENDS

CODE SEGMENT

START: MOV AX,DATA

MOV DS,AX

MOV AH,9

LEA DX,MSG

MOV AX,06h

MOV CL,06h

lea di,ans

AGAIN:

mov ax,06h

DIV cl

CMP AH,00H

JZ FCT

DEC CL

JNZ AGAIN

JZ PEND

FCT:

mov [di],cl

inc di

INC BL

DEC CL

JNZ AGAIN

PEND:

MOV AH,04CH

INT 21H

CODE ENDS

END START

Output:

Conclusion:

The program of find factors of the given number is successfully executed with the use of tasam simulator.

Practical-10

Aim: Write a program to find complete Fibonacci series till n th number. 

Software requirements: TASM Simulator

Logic:

ASSUME CS:CODE,DS:DATA

DATA SEGMENT

N DB 09H

A DB 01H

B DB 00H

MSG DB 'FIBONACCI','     ','SERIES'

SUM DB 01H

ANS DB ?

DATA ENDS

CODE SEGMENT

START:MOV AX,DATA

MOV DS,AX

MOV AH,9

LEA DX,MSG

MOV AL,A

MOV BL,B

MOV CL,N

MOV DL,SUM

lea si,ans

AGAIN:

CMP DL,CL

JNC AOUT

ADD AL,BL

CMP AL,CL

JNC AOUT

MOV DL,AL

mov [si],al

inc si

MOV AL,BL

MOV BL,DL

JMP AGAIN

AOUT:

MOV ANS,DL

MOV AH,04CH

INT 21H

CODE ENDS

END START

Output:

Conclusion:

The program of find complete Fibonacci series till n th number is successfully executed with the use of tasam simulator.

Practical-11

Aim: Write a program to find a total number of negative elements in a given array.

Software requirements: TASM Simulator

Logic:

ASSUME CS:CODE,DS:DATA

DATA SEGMENT

N DW 1001H,8002H,0A003H,0B004H,5505H

D DB ?

DATA ENDS

CODE SEGMENT

START : MOV AX,DATA

MOV DS,AX

MOV CL,05H

LEA SI,N

AGAIN : MOV AX,[SI]

SHL AX,1

JNC NOCOUNT

INC DL

NOCOUNT : INC SI

SHR AX,1

DEC CL

JNZ AGAIN

MOV D,DL

MOV AH,04CH

INT 21H

CODE ENDS

END START

Output:

Conclusion:

The program of find a total number of negative elements in a given array is successfully executed with the use of tasam simulator.