CS609 Assignment 2 Solution File spring 2021

CS609 Assignment 2 Solution File spring 2021 - Virtual University

Solution:

Cs609 Assignment 2 Solution 2021

 

Question

Solution

Code

Mov 0x178, al;

Outb al,0x20;

Outb al, 0xA0;

 

Mov 0x80,al;

Outb al, 0x21;

Add 0x70, al;

Outb al,0xAl;

 

In al, 0x21

Or al, 2;

Out 0x21, al;

 

In al, 0x21Al

Or al,2          ;

Out  0xAl, al;

Mov ax, 0x4c00;

Int0x21

 

Question 2

Solution

AH=30H

Printer Status=?

 

The Status of  the  printer can be described in the manner to check if the printer can perform printing or not .in this  AH is 30.it means the  5^th  bit of the status  byte is 1 which tells that  the printer is out of paper and printer  could not be accessed.