Interfacing subroutines with parameter passing, Computer Engineering

Assignment Help:

Interfacing Subroutines with Parameter Passing

Let's now write a C program which calls the assembly program for parameter passing. Let's extend the previous two programs such that if on function call 0 is passed then cursor is turned off and if 1 is passed then cursor is turned on. Calling C program for such may look like:

# include < stdio.h 

voidcursw(int);

void main()

{

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

cursw(0); /* call to assembly routine with 0 as parameter

getchar();

printf("%s\n","the cursor is now turning on");

cursw(l); /* call to assembly routine with parameter as1.

   }

The variables in C or C + + are passed on the stack.


Related Discussions:- Interfacing subroutines with parameter passing

What is a good resolution, Q. What is a good resolution? In fact it rel...

Q. What is a good resolution? In fact it relies on your hardware. Hence it's the maximum your hardware can allow you.  But one odd-looking resolution that has become popular is

What are the properties exposed by activex controls, An ActiveX control has...

An ActiveX control has four types of properties: 1. Stock:-> These are standard properties supplied to each control, such as font / color. The developer must activate stock pro

Angle of elevation and depression, in building a suspension bridge a cable ...

in building a suspension bridge a cable is to be stretched from the top of a pier to a point 852.6 ft. from it''s foot. if from this point the angle of elevation of the top of the

Software architecture of microprocessor, The 68HC11 series is based on the ...

The 68HC11 series is based on the Motorola 6800/1 programming instruction set and hence is a fairly simple 8 bit microprocessor. The internal structure of the 6800/1 is shown below

Determine the adding operations of describe function, Adding Operations of ...

Adding Operations of describe function  Whenever take a look at the operations in OOPs you find queries about attributes or associations in object model (such as student.name)

Describe the limitation of fat16, Q. Describe the Limitation of FAT16? ...

Q. Describe the Limitation of FAT16? DOS designers decided to use clusters with as a minimum four sectors in them (so a cluster size of at least 2KB) for all FAT16 hard disks.

How can a function return a pointer to its calling routine, How can a funct...

How can a function return a pointer to its calling routine? The general form of a function is: type_specifier function_name(parameter list) { body of function; }

Show the example of internet address, Q. Show the example of internet addre...

Q. Show the example of internet address? The following can be a typical person understandable address on Internet: VVS @ expertsmind.us VVS is an username which in gene

What is a priority interrupt, What is a Priority Interrupt? A priority ...

What is a Priority Interrupt? A priority interrupt is an interrupt that establishes a priority over the various sources to determine which condition is to be serviced first whe

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