Write an assembly language program to Compute ∑_(i=1)^n▒(x_i y_i )

Objective:

(i) To know about several command in the Assembly language.

(ii) Input a Character.

(iii) Output a Character.

Source Code:

.model small

.stack 100h

print macro msg

                   lea dx,msg

                   mov ah,09h

                   int 21h

endm

.data

                   msg1 db “Result =$”

                   X db 2,3,4

                   Y db 3,2,4

                   Sdw?

.code

main proc

                   mov ax,@data

                   mov ds,ax

                   mov cx,3;loop count 3 times

                   lea si,X;assign address of x to si

                   lea di,y; assign address of y to di

          A1:

                   moval,[si];value of si is placed intoal

                   mov bl,[di];value of di is placed into     bl

                   mul bl

                   add S,ax

                   mov ax,0000h

                   add si,1

                   add di,1

                   loop A1

          print msg1

          mov ax,s

          call int2asc

          mov ah,4ch

          int 21h

main endp

int2ascproc

                   movcx,00

                   mov bx,0ah; 0ah=10

          rpt:

                   mov dx,00h

                   div bx

                   add dl,30h

                   inc cx

                   push dx

                   cmp ax,0ah

                   jgerpt

          add al,30h

          inc cx

          push ax

          mov ah,02h

          print_loop:

                   pop dx

                   int 21h

                   loop print_loop

          ret;return to main function

int2asc endp

end main

Input/output:

          Result = 28