num               129 syscall.c        int num;
num               131 syscall.c        num = proc->tf->eax;
num               132 syscall.c        if(num > 0 && num < NELEM(syscalls) && syscalls[num]) {
num               133 syscall.c          proc->tf->eax = syscalls[num]();
num               136 syscall.c                  proc->pid, proc->name, num);