CS401 Assignment 2 ( Spring 2016 ) Complete Solution With step by step Guideline

CS401 Assignment 2 ( Spring 2016 ) Complete Solution With step by step Guideline

Download Assembly Software from below Link 

Download DosBox Software from below Link 

Assignmnet Code : Copy this Code And Save AnyName E.G: Arslan.asm

;Assingment 2 using string instructions [org 0x0100] jmp start message: db 'BS110401050 Arslan Arshad' ; string to be printed length: dw 25 ; length of string clrscr: push es push ax push cx push di mov ax, 0xb800 mov es, ax ; point es to video base xor di, di ; point di to top left column mov ax, 0x0720 ; space char in normal attribute mov cx, 2000 ; number of screen locations cld ; auto increment mode rep stosw ; clear the whole screen pop di pop cx pop ax pop es ret ; subroutine to print a string ; takes the x position, y position, attribute, address of string and ; its length as parameters printstr: push bp mov bp, sp push es push ax push cx push si push di mov ax, 0xb800 mov es, ax ; point es to video base mov al, 80 ; load al with columns per row mul byte [bp+10] ; multiply with y position add ax, [bp+12] ; add x position shl ax, 1 ; turn into byte offset mov di,ax ; point di to required location mov si, [bp+6] ; point si to string mov cx, [bp+4] ; load length of string in cx mov ah, [bp+8] ; load attribute in ah cld ; auto increment mode nextchar: lodsb ; load next char in al stosw ; print char/attribute pair loop nextchar ; repeat for the whole string pop di pop si pop cx pop ax pop es pop bp ret 10 start: call clrscr ; call the clrscr subroutine mov ax, 10 push ax ; push x position mov ax, 15; push ax ; push y position mov ax, 0x12 ; blue on black attribute push ax ; push attribute mov ax, message push ax ; push address of message push word [length] ; push message length call printstr ; call the printstr subroutine mov ax, 0x4c00 ; terminate program int 0x21

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