Virtual Study Solutions: CS401 Assignment No 3 Solution

<div dir="ltr" style="text-align: left;" trbidi="on">
<h3 style="text-align: left;">
CS401 Assignment No 3 Spring 2017</h3>
Dear Students, here we have CS401 - Computer Architecture and Assembly Language Programming Assignment No 3 Solution Spring 2017. Due Date 20 /July/2017. Total Marks : 20. 
<div>
 </div>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgItBXB98xY1R2g6FbSFOOd1tPHwLSpFREVbkteGP1_-JW1d9yEAuRuBDudlkuQwwWJoWoT4_tYIit4EO9DmUiWY3lZ43tTjM8q3LCgaUVyzg16B1CeE29ueVj4-NvbZNsz_YhgHa2aFxI/s1600/CS401+Assignment+No+3+Solution+Spring+2017.png" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img alt="CS401 - Computer Architecture and Assembly Language Programming Assignment No 3 Solution" border="0" data-original-height="243" data-original-width="478" height="202" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgItBXB98xY1R2g6FbSFOOd1tPHwLSpFREVbkteGP1_-JW1d9yEAuRuBDudlkuQwwWJoWoT4_tYIit4EO9DmUiWY3lZ43tTjM8q3LCgaUVyzg16B1CeE29ueVj4-NvbZNsz_YhgHa2aFxI/s400/CS401+Assignment+No+3+Solution+Spring+2017.png" title="CS401 - Computer Architecture and Assembly Language Programming Assignment No 3 Solution" width="400" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">CS401 - Computer Architecture and Assembly Language Programming Assignment No 3 Solution</td></tr>
</tbody></table>
<div>
Recommended : <a href="http://virtualstudysolutions.blogspot.com/2017/05/cs401-assignment-no-2-spring-2017.html" itemprop="url">CS401 Assignment No 2 Spring 2017 Solution and Discussion</a> 
<h3 style="text-align: left;">
CS401 Assignment Rules for Marking</h3>
It should be clear that your assignment would not get any credit if: 
<ul style="text-align: left;">
<li>The assignment is submitted after the due date.</li>
<li>The submitted assignment does not open or file is corrupt.</li>
<li>Strict action will be taken if submitted solution is copied from any other student or from the internet.</li>
</ul>

You should consult the recommended books to clarify your concepts as handouts are not sufficient. You are supposed to submit your assignment in .doc or docx format. Any other formats like scan images, PDF, zip, rar, ppt and bmp etc will not be accepted. 
<h3 style="text-align: left;">
Topic Covered in CS401 Assignment No 3:</h3>
 
<ul style="text-align: left;">
<li>BIOS and DOS interrupts</li>
<li>Hardware Interrupts</li>
<li>Ports</li>
</ul>

 
<h4 style="text-align: left;">
Please Note</h4>
No assignment will be accepted after the due date via email in any case (whether it is the case of load shedding or internet malfunctioning etc.). Hence refrain from uploading assignment in the last hour of deadline. It is recommended to upload solution file at least two days before its closing date. If you people find any mistake or confusion in assignment (Question statement), please consult with your instructor before the deadline. After the deadline no queries will be entertained in this regard. For any query, feel free to email at: cs401@vu.edu.pk 
<h3>
CS401 Assignment Question</h3>
Suppose, you are interfacing an old monochrome dot matrix printer (receipt printer) with your computer’s parallel port. The stated dot matrix printer will print receipts character wise, so the system will transmit each character parallelly. The printer will be operated as under: 
<ul style="text-align: left;">
<li>First, you should select the printer by setting “select printer” pin on your parallel port.</li>
<li>Initialize printer by sending initialize signal.</li>
<li>Read “acknowledge” pin.</li>
<li>Transmit ASCII character data to the data port of the parallel port.</li>
<li>Clear initialize signal.</li>
<li>Deselect printer.</li>
</ul>

You should write a subroutine to print <div style="text-align: center;">
“Welcome to Virtual University of Pakistan”</div>
 Your subroutine will get each character as an input from keyboard using interrupt mechanism and transmit it to the printer port according to the stated working mechanism 
<h4 style="text-align: left;">
CS401 Assignment No 3 Solution</h4>
BITS 16 ;Set code generation to 16 bit mode ORG 0x0100 ;Set code start address to 0000h MAIN: jmp START DISP: mov ah,09h ;String Print int service int 21h ret OFF: mov al,00h ;All LEDs OFF mov dx, 378h out dx, al jmp MAIN ON: mov al,0FFh ;All LEDs ON mov dx, 378h out dx, al START: lea dx,[msg1] ;Display message call DISP mov ah, 01h ;keyboard interrupt int 21h cmp al,'1' ;press 1 to ON je ON cmp al,'0' ;press 0 to OFF je OFF END: mov al, 00h ;OFF LEDs and motor mov dx, 378h out dx, al mov ah, 4Ch ;End of program int 21h section .data msg1 db 13,10,'Press 1/0(press any key to exit): ','$' ; Description : A simple example of ;parallel interfacing file programmed bits 16 ; Set 16 bit code generation org 0x0100 ; Set code start address to ; 100h (COM file) MAIN: jmp START ; Jump to label 'START' DISPLAY: ; Subroutine program lea dx,[msg1] ; string print mov ah,09h ; service no 09h int $21 ; interrupt 21h ret DELAY: ;Delay program MOV CX, 01Fh ;outer loop .NEXT: MOV BX,0FFFFH ;inner loop .NEXT2: NOP NOP NOP DEC BX JNZ .NEXT2 LOOP .NEXT RET END: ;Define label 'END' mov ah, $4C ;service no =4ch int $21 ret ;return to calling PATTERN: ;1st pattern mov dx,$378 ;set data port address mov al,$03 ;set two LEDs ON out dx,al ;output to data port call DELAY ;call delay subroutine ;2nd pattern mov dx,$378 ;set data port address mov al,$02 ;set one LED = OFF, another LED=ON out dx,al ;output to data port call DELAY ;call delay subroutine ;3rd pattern mov dx,$378 ;set data port address mov al,$01 ;set one LED = ON, another LED=OFF out dx,al ;output to data port call DELAY ;call delay subroutine ;4th pattern mov dx,$378 ;set data port address mov al,$00 ;set two LEDs = OFF out dx,al ;output to data port call DELAY ;call delay subroutine ret START: call DISPLAY ; display message on screen call PATTERN ; display pattern call END ; end program section .data msg1 db 13,10,Program running? ','$' BITS 16 ;Set code generation to 16 bit mode ORG 0x0100 ;Set code start address to 0000h [section .text] MAIN: jmp START DISP: mov ah,09h ;String Print int service int 21h ret ON2: lea dx,[msg3] ;Display message call DISP mov al,0F0h ;2nd 7-seg ON mov dx, 378h out dx, al jmp MAIN ON1: lea dx,[msg2] ;Display message call DISP mov al,0Fh ;1st 7-seg ON mov dx, 378h out dx, al START: lea dx,[msg1] ;Display message call DISP mov ah, 01h ;keyboard interrupt int 21h cmp al,'1' ;press 1 to ON1 je ON1 cmp al,'2' ;press 2 to ON2 je ON2 END: mov al, 00h ;LEDs OFF mov dx, 378h out dx, al mov ah, 4Ch ;End of program int 21h section .data msg1 db 13,10,'Press 1/0: ','$' msg2 db 13,10,'First 7-SEG ON...','$' msg3 db 13,10,'Second 7-SEG ON...','$' 
<div>
 </div>
<div>
 </div>
Dear Students, Assembly ke coding simple notepad file main likhtay hain phir iss koo compile kertay hain oor uss say .com and .lst file banatay hain...... don't be confused yeah language zaror perho kiun kay yeah to basic hai hardware engineering kee 
<div>
 </div>
<div>
Please share with your friends. Thank You.</div>
</div>
</div>

CS401 Assignment No 3 Solution Spring 2017

CS401 Assignment No 3 Spring 2017 Dear Students, here we have CS401 - Computer Architecture and Assembly Language Programming Assignment ...

Virtual Study Solutions

Adsetra Ads

CS401 Assignment No 3 Solution Spring 2017

Trending

Archive