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Write a main program that uses these system calls to echo the typed characters. The pseudo code will look something like:
void traphandler () {
if (R0 == 0) { // read system call
R1 = getchar(); // poll the status register of the IO terminal until a char is available then load it into R1
} else if (R0 == 1) { // write system call
putchar(R1); // just store R1 to memory location 0xfff0
}
enableInterrupts();
void main() {
char c;
while (1) {
c = read(); // set R0 to 0 can issue the 'trap' instruction, result will be in R1
write(c); // set R0 to 1 and set R1 to 'c' and issue the 'trap' instruction
Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b
Smugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new technology, they are send
C Program for SORTING OF NUMBERS main() { int a[20],i,j,temp,n; clrscr(); printf("ENTER THE MAXIMUM LIMIT: "); scan
palindrome program with minimum character replacements
Explain the Function Prototype? The Functions must be declared before they are used, ANSI C provides for the new function declaration syntax called as the function prototype,
Implement a Algorithm to verify if the link list is in Ascending order? A: template bool linklist::isAscending() const{ nodeptr ptr = head; while (ptr->_next)
write a c program to solve exanple of lamis therom
Bitwise Operations 1. Write a function that has an int parameter n, makes an integer mask having the bit 1 at the nth place from the rightmost bit, and returns the mask. For ex
In this sub-task will you implement three functions for the final three function prototypes that will do exactly the same as the three functions that you have just written. This ti
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