Review Oct 31
Install Qemu, download xv6, run make qemu, read code along with video
add a system call to xv6
xv6 project 1 videoRead through end of Chapter 8, page 98 in our class text book 3 easy pieces.
add the system call "int getreadcount(void)" to xv6. It is a system call that returns the number of times the system call read has been called since boot time. Write a program that calls the new system call and prints the output. Run cat several times and make sure your new system call is working.
Send me the new code you wrote along with the name of the files where that code was place in, as well as a screen shot of the output, and your user code calling it.