The putchar is a library function. It calls the write system call to write the character in stdout. If we access the system call so many time, the system performance will get slow. So only, the library functions are implemented. The library functions for writing, it allocates a buffer, once if the buffer is fulled … Read more
I have found the answer. This question should not have been deleted. As a rule only syscalls which are “slow” return EINTR. Slow things are terminal I/O and things which wait (select, wait, sleep, pause, etc). solved Which system calls can return EINTR or EAGAIN error codes? [closed]
Functions return their value in $v0; the print integer syscall expects its argument in $a0. You need to move $a0 to $v0 before you do the print, otherwise you’ll be printing whatever happened to be in $a0 (which in the case is the last value that you recursively added; i.e. 10). solved the answer is … Read more
First of all, in the core image of your program, you initialise two values, ret_val, and i which acts as a counter. From there on, for 5 times, you fork() the program, creating another process with the same image (code). At this point I am assuming your code is wrong, because you are using the … Read more