Using DEBUG

DEBUG.COM is a DOS efficacy that facilitates the trouble-shooting and debugging of assembly language programs. In particular case of personal computers, all of the resources, processor and memory resource management functions are carried out by the operating systems. Therefore, users have very little control on the computer hardware at lower levels. The DEBUG efficacy enables you to have the control of these resources up to some extent. In the easier, rather then, basic words, the DEBUG enable you to use the personal computer as a low level microprocessor kit.

The DEBUG command at DOS prompt invokes this facility. A '_' (dash) display signals the successful invoke  operation of DEBUG, further that is used as DEBUG  prompt for debugging  commands. Following command line, DEBUG prompt and the DEBUG command character display describe the DEBUG command entry procedure, as in  given Figure.

A valid command is accepted by using the enter key. The list of typically used valid commands of DEBUG is given in Table namely DUBEG command along with their respective syntax.

The program DEBUG can be used either to debug a source program or to view the results of execution of an .EXE file with the help of the .LST file and the above commands.  The .LST file indicates the offset address allotments for result variables of a program in the   specific segment. After the execution of the program is completed the offset address of the result variables can be observed by using the d command. The results available in the registers may be view by using the r command. So the DEBUG offers a reasonably good platform for trouble-shooting executing and observing the results of the assembly language programs. Here one should remember that the DEBUG is able to only trouble-shoot the .EXE files.

Posted Date: 10/12/2012 7:30:08 AM | Location : United States

Ask an Expert

Related Discussions:- Debug-microprocessor, Assignment Help, Ask Question on Debug-microprocessor, Get Answer, Expert's Help, Debug-microprocessor Discussions

Write discussion on Debug-microprocessor
Your posts are moderated

Write your message here..

Related Questions

Scas-string manipulation instruction-microprocessor, SCAS : Scan String By... SCAS : Scan String Byte or String Word:- This instruction scans a string of words or byte for an operand word or byte specified in the register AL or  register AX. The string i

Cbw-cwd-arithmetic instruction-microprocessor, CBW: Convert Signed Byte to... CBW: Convert Signed Byte to Word: This instruction converts a signed byte to a signed word. In other terms, it copies the sign bit of a byte to be converted to all of the bits in

Architecture of file transfer, Explain the architecture of the file transfe... Explain the architecture of the file transfer protocol ftp in terms of clients, servers, sockets

Mlil-arithmetic instruction-microprocessor, MLIL: Unsigned Multiplication ... MLIL: Unsigned Multiplication Byte or Word: This instruction multiplies an unsigned byte or word by the contents of the AL. The unsigned byte or word can be in any one of the gene

Schematic circuit diagram of system, Perform an extensive web search of pop... Perform an extensive web search of popular microcontroller manufacturers (some of the major players) to select a suitable device for the system to control the lighting of a typical

Inc-arithmetic instruction-microprocessor, INC: Increment : - This instruct... INC: Increment : - This instruction increments the contents of the particular memory or register location by the value 1. All the condition code flags are affected except the carry

Thesis statement of " ambition " please, thesis statement about ambition in... thesis statement about ambition in life

Operating System, Why is the capability to relocate processes desirable? Why is the capability to relocate processes desirable?

Summation Program., Write a program to solve problem 9, Summation Program, ... Write a program to solve problem 9, Summation Program, on page 179 of chapter 5 in the textbook (book:kip Irvine Assembly Language sixth edition)

Linking a program-microprocessor, Linking a program The DOS linking pro... Linking a program The DOS linking program LINK.EXE links the different object modules of function library routines and source program to produce an integrated executable code o