Working with various instructions using debug, Electrical Engineering

Assignment Help:

The purpose of this experiment is to introduce you to a powerful 80x86 assembly/machine language utility called DEBUG.

Preparing Your DEBUG Environment

If you have an older version of Windows (95, or 98) or Windows XP 32-bit, or Windows Vista 32-bit, or Windows 7 32-bit, then the DEBUG utility program is built into the operating system. You can prove this to yourself by opening a Command Prompt window (Start, Run, type debug into the run field, and click OK, or just click the Command Prompt icon). Once inside the Command Prompt window, type debug and press Enter. If you get an error then DEBUG does not exist on your Windows system.

Start Menu showing Command Prompt icon

If you have 64-bit versions of Windows XP, Vista, 7, or 8, then you need to install some special software to create a DEBUG environment.

The special software you need (DosBox) as well as the actual DEBUG program are saved in the following ZIP file:

The debughelp2.doc document explains how to unzip the files and get DEBUG running through DosBox.

Procedure

1. Read Appendix D, pages 560 through 575. Perform all the example DEBUG command exercises that are presented.

2. Here is the DEBUG program you need to enter and execute:

a
mov ax,0
mov bx,1234
mov cx,5678
mov dx,9abc
and ax,bx
or ax,cx
xor ax,dx
not ax
r
t 8
q

3. Run DEBUG and enter the program and commands line by line. The blank line after the not ax instruction is needed to get out of the "a" command.

4. Examine the DEBUG output. The final value in AX should be 333B. This would be a good time to do an Alt Print Screen to capture a screen shot of the DEBUG window to paste into your lab writeup.

5. Quit DEBUG and then run it again.

6. After entering the "a" command, change the first instruction from

mov ax,0

to

mov ax,????

where ???? is your 4-digit birth date. For example, if you were born on July 15, your instruction would be mov ax,0715

Then enter the rest of the instructions and commands.

7. Use DEBUG to run the modified program. Do another Alt Print Screen to grab the new DEBUG results for your lab writeup.


Related Discussions:- Working with various instructions using debug

Digital communication systems, Q. Digital communication systems? Today ...

Q. Digital communication systems? Today digital communication systems are in common use, carrying the bulk of our daily information transmission through a variety of communicat

Guidelines from electricity regulatory commission, Guidelines from Electric...

Guidelines from Electricity Regulatory Commission The electricity companies have successfully adopted the guidelines issued through ERCs Utilities usually set their yearly KP

Circuit, y more number of resistance and capacitor are used in a circuit w...

y more number of resistance and capacitor are used in a circuit what is the purpose to add ore than one..?

Why memory decoding is required, Why memory decoding is required? To a...

Why memory decoding is required? To attach a memory device to the microprocessor, this is necessary to decode the address sent by the microprocessor. Decoding creates the memo

1-phase half bridge inverters, 1- Φ Half Bridge Inverters 1-Φ bridge  ...

1- Φ Half Bridge Inverters 1-Φ bridge  inverter may be  of two  type 1-? half  bridge  and 1-? full  bridge  inverter. 1-? half bridge  inverter with resistive load to explain

Ac generators - the alternator, In practice, it is usually better to wind t...

In practice, it is usually better to wind the field coils on the rotor and supply the field current to them via slip rings.  As the rotor turns, the changing magnetic field expe

Working of microprocessor control, Q. Working of Microprocessor Control? ...

Q. Working of Microprocessor Control? The microprocessor, which has rapidly become a key component in digital control systems, and its associated circuits function as the digit

Decoding logic, show the decoding logic for 11011 code if an active high an...

show the decoding logic for 11011 code if an active high and an active low output required

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd