Write an assembly function which hides the cursor, Computer Engineering

Assignment Help:

Q. Write an assembly function which hides the cursor?

Write an assembly function which hides the cursor. Call it from a C program.

            . PUBLIC CUROFF

            . MODEL small, C

            . CODE

CUROFF PROC

MOV                        AH, 3                 ; get the current cursor position

XOR                         BX, BX             ; empty BX register

INT                           10h                     ; use int 10hto do above  

OR                            CH, 20h             ; force to OFF condition

MOV                        AH, 01               ; set the new cursor values

INT                           10h  

RET   

CUROFF ENDP

END 

The C program to test this routine is as follows:

# include < stdio.h 

void curoff(void);

void main()

 {

printf("%s\n, "The cursor is now turning off);

curoff();

 }

You can write another procedure in assembly language program to put cursor on. This can be done by replacing OR CH, 20h instruction by AND CH, 1Fh. You can call this new function from C program to put cursor on after curoff.


Related Discussions:- Write an assembly function which hides the cursor

C++, explain parallel database system

explain parallel database system

Define process, Define Process. Process: It is a program in executi...

Define Process. Process: It is a program in execution; process execution should progress into sequential fashion. Process contains: program counter stack dat

Techniques are used to increase the clock rate r, What techniques are used ...

What techniques are used to increase the clock rate R? Ans: The 2 techniques used to increase the clock rate R are: 1. We can reduce the amount of processing done in one basi

Operating system.., what is network operating system design issues

what is network operating system design issues

Explain microcode and VLSI technology, Q. Explain Microcode and VLSI Techno...

Q. Explain Microcode and VLSI Technology? It is considered that CU of a computer be assembled using two ways; create micro-program which execute micro-instructions or construct

How do you add a developer to a trusted publishers list, Whenever a develop...

Whenever a developer is signing into the code project you will have three options they are disable the macro, enable the macro and explicitly trusting the publisher. You can trust

Postpurchase interaction, Postpurchase Interaction Customer service an...

Postpurchase Interaction Customer service and support: The considerations at this stage can be explained by the following example: Consider a bundle having of a portfolio

Extension of propositional logic, Extension of propositional logic: Aw...

Extension of propositional logic: Away from proving  theorems directly, and the other main use for rewrite rules is to prepare a statement just for use before we search for th

What is line option explicit, What is line option explicit Line explici...

What is line option explicit Line explicit function makes the compiler to recognize all the variables which are not particular by the dim statement. This command significantly

Data base, why to learn data base?

why to learn data base?

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