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

Design a multiplier, how can we design a multiplier by using ASM chart and ...

how can we design a multiplier by using ASM chart and then design the data controller ?!!

Difference between a null pointer and a void pointer, A NULL pointer is a p...

A NULL pointer is a pointer of any type whose value is zero. A void pointer is a pointer to an object of an unknown type, and is guaranteed to have sufficient bits to hold a pointe

State the term organizational structure, State the term Organizational Stru...

State the term Organizational Structure. A business organization might be structured in many various ways, depending on the environment in that this operates. There are alwa

Explain routing tone in strowger telephony, Explain routing tone in strowge...

Explain routing tone in strowger telephony with waveforms and the timings. The call-in-progress tone or routing tone is a 400 Hz or 800 Hz intermittent pattern. In electromec

Syntax and semantics for first-order logic , Syntax and Semanticsx and Sema...

Syntax and Semanticsx and Semantics for First-order logic - artificial intelligence: Propositional logic is limited  in its expressiveness: it may just represent true and false

Explain the different fields of an instructions, Explain the significance o...

Explain the significance of different fields of an instruction An instruction is a command given to a computer to perform a particular operation on some given data and the form

Explain different system calls for performing different task, Write down di...

Write down different system calls for performing different kinds of tasks. The major types of system calls are given as: Process Control: These kinds of system calls are

Returns and procedures definitions in 8086, Q. Returns and Procedures defin...

Q. Returns and Procedures definitions in 8086? 8086 microprocessor supports RET and CALL instructions for procedure call. CALL instruction not only branches to indicate address

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