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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
hwat is the area fsdjlakl;aeklfjtealrtl;gka
convert BST into sorted doubly linked list
program????
I need a project on car rental system using c programming only of college level
Objectives: The objective of this assignment is to use C++ to queue students into an array-based queue for BCS registration. Students have the option of taking five different cours
A container class is a class which is used to hold objects in external storage and memory. A container class work as a generic holder. A container class contains a predefined behav
write a program to calculate the cuboid
Constructors By definition, a constructor function of some class is a member function that automatically gets implemented whenever an instance of the class to which the constru
Explain Operators in C Language? The C language is very rich in built - in - operators and it places more significance on operators than do most other computer languages. The C
can you tell me what is c#
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