11. Factorial Of A Given Number

Adam’s Engineering College, Paloncha ECE Department –MPI LAB Experiment No.: 11 Page 1 of 3

Year : III/IV B.Tech II Semester

FACTORIAL OF A GIVEN NUMBER

Aim: - To write an assembly language program to find the factorial of the given number. Registers: - Al, BL Description: - Factorial of a given number is found and the result is stored in the pointer. Ports:- None. DATA SEGMENT X DB ? FACT DB 2 DUP(0) DATA ENDS CODE SEGMENT ASSUME CS: CODE, DS: DATA, ES: DATA START:

MOV AL, 01 MOV BL, X LOOK: MUL BL DEC BL JNZ LOOK MOV FACT, AL CODE ENDS END START

Lab in-charge

HOD, ECE

Adam’s Engineering College, Paloncha ECE Department –MPI LAB Experiment No.: 11 Page 2 of 3

Year : III/IV B.Tech II Semester

(2) DATA SEGMENT X DB ? FACT DB 2 DUP(0) DATA ENDS CODE SEGMENT ASSUME CS: CODE, DS: DATA, ES: DATA START:

MOV AL, 01 MOV BL, X LOOK: JZ NEXT MUL BL JNZ LOOK NEXT: MOV FACT, AL CODE ENDS END START

(3) DATA SEGMENT X DB ? FACT DB 2 DUP(0) DATA ENDS CODE SEGMENT ASSUME CS: CODE, DS: DATA, ES: DATA START:

LOOK: Lab in-charge

MOV AL, 01 MOV CL, X JZ NEXT

HOD, ECE

Adam’s Engineering College, Paloncha ECE Department –MPI LAB Experiment No.: 11 Page 3 of 3

Year : III/IV B.Tech II Semester

MUL CL LOOP LOOK NEXT: MOV FACT, AL CODE ENDS END START Result: Factorial of a given number is obtained.

Lab in-charge

HOD, ECE