Define com programs, Computer Engineering

Assignment Help:

Q. Define COM Programs?

A COM (Command) program is binary image of a machine language program. It is loaded in memory at the lowest available segment address. Program code starts at an offset 100h, the first 1K locations being occupied by IVT.

A COM program keeps itsdata, code and stack segments within same segment. Because the offsets in a physical segment can be of 16 bits hence size of COM program is limited to 216 = 64K that involvesdata, code and stack. The subsequent program displays a COM program:

; Title add two numbers as well as store result and carry in memory variables.

; name of segment in this program is chosen to be CSEG


Related Discussions:- Define com programs

Prove the equations using the boolean algebraic theorems, Prove the equatio...

Prove the equations A + A‾ .B + A.B‾ = A + B using the Boolean algebraic theorems ? Ans. The equation is A + A‾.B + A.B‾ = A + B L.H.S. = A + A‾ .B + A.B‾ = (A + A.B‾) + A‾.B

Explain dma and interrupt breakpoints, Q. Explain about DMA and Interrupt B...

Q. Explain about DMA and Interrupt Breakpoints? DMA interface transfers complete block of data one word at a time directly to or from memory without going through processor. Wh

Face scanning security system - biometric, Face Scanning Security System - ...

Face Scanning Security System - Biometric Computer Security Systems Finally, face scanning security system are also one of biometric technologies. Generally, the principle of

Structure tensor, what is structure tensor?how we calculate for image pixel...

what is structure tensor?how we calculate for image pixel?

Carry look-ahead adder and booth''s algorithm, Describe carry look-ahead ad...

Describe carry look-ahead adder? Ans: The input carry required by a stage is directly computed from carry signals obtained from all of the preceding stages i-1,i-2,.....0, rat

Explain the pdca cycle, Explain the PDCA cycle. PDCA is a four step pro...

Explain the PDCA cycle. PDCA is a four step problem solving method. The following are the description of each step: 1. P - Plan (Devise your Plan). Identify an opportunity a

Explain point-to-point message passing, Q. Explain Point-to-point Message P...

Q. Explain Point-to-point Message Passing? In point to point message passing, one process transmits/receives message from/to another process. There are four communication modes

Explain about behavioral notations, Explain about Behavioral Notations ...

Explain about Behavioral Notations These notations contain dynamic elements of the model.  Their elements comprise interaction and the state machine. It also comprise classe

What is a multiplexer tree, What is a Multiplexer Tree? Ans Multip...

What is a Multiplexer Tree? Ans Multiplexer Tree: The largest available MUX IC is 16 to 1. Meeting the larger input requires there must be a provision to expand this. It

Explain naming convention globals, Explanation The values of global vari...

Explanation The values of global variables can be used and changed all over the project within all scripts and libraries. However it is highly recommended to remain the number o

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