CS460 Midterm Exam #3
	       DUE: 9/28 2023

Base code: samples/MID3/mid3.tgz
It supports kfork() and timer interrupts

               REQUIREMENT

Implement process scheduling by time slice:
1. kfork 4 processes: P1 to P4
2. When a process runs, set its time slice to, e.g. 4 seconds
3. At each second: decrement running proc's time by 1;
4. When running->time reaches 0: swtich process

Sample solution: samples/MID3/mid3.bin