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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
Classify computer system according to capacity. How they are different from computers according to the classification of technology. Provide comparative study also.
Define Functions with arguments and return values? The earlier category functions receive values from the calling function through arguments but do not send back any value rath
minimum of seven number
#questionAt a shop of marbles, packs of marbles are prepared. Packets are named A, B, C, D, E …….. All packets are kept in a VERTICAL SHELF in random order. Any numbers of packets
Write a algorithm to explain the processof wakingbup in morning
how many values we can return from pointer to function?
Should one design a classes from the outside (interfaces first) or inside (data first)? A: From the outside. A superior interface provides a simplified view which is express
How to run in C++
2 flowcharts, pseudocode for each (at least 4 algorithms), and code for either a stack or a queuestion..
Designing a deck plan space ship in eclipse.
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