Explain dos function call with one illustration, Computer Engineering

Assignment Help:

Explain DOS function call with one illustration

DOS function call

In order to use DOS function calls, always place function number into register AH and load all other relevant information into registers, as described in the entry data table. Once this is accomplished, follow with an INT 21H to execute DOS function.

Illustration:      MOV AH, 6

                        MOV DL, 'A'

                        INT 21H

Example demonstrates how to display an ASCII A on the CRT screen at the current cursor position with a DOS function call.

 


Related Discussions:- Explain dos function call with one illustration

The types of parameters in the function modules, What are the types of para...

What are the types of parameters in the function modules? In general, function module can have four types of parameters: EXPORTING : for passing data to the called function

String, super string checker

super string checker

Write a ''c'' functions to arrange the elements of an integer , Write a 'C'...

Write a 'C' functions to arrange the elements of an integer array in such a way that all the negative elements are before the positive elements. The array is passed to it as an arg

Rank the list elements in terms of distance, Q. Rank the list elements in t...

Q. Rank the list elements in terms of distance? Rank the list elements in terms of distance from each to last element in given linear linked list. A parallel algorithm for t

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

Define process, Define Process Process is a program in execution; proc...

Define Process Process is a program in execution; process execution should progress in sequential fashion. A process involves: a) Program counter  b) Stack c) Data se

Explain ps-2 connector, PS/2 connector (PS/2 keyboards): These were int...

PS/2 connector (PS/2 keyboards): These were introduced with IBM's PS/2 computers and therefore are known as PS/2 connectors.  They have 6-pins but actually their wiring is just

Explain briefly the function of layers, Explain briefly the function of dif...

Explain briefly the function of different layers which are covered under end to end layer connectivity. Different layer are as follows: 1. Transport Layer:  This is res

What is referred as memory mapped i/o, What is referred as memory mapped I/...

What is referred as memory mapped I/O. The case in computers that employ only set of read and write signals and do not differentiate between memory and I/O address. This is kno

Truth tables, Any function can be expressed in a truth table.A truth table ...

Any function can be expressed in a truth table.A truth table lists all possible combinations ofinputs and gives the output produced in eachcase.Truth tables must include all combin

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