Question 1: What is the vm system called that is configured for assignment 0?
Answer: dumbvm (kern/arch/mips/conf.arch)

Question 2. Which register number is used for the stack pointer (sp) in OS/161?
Answer: Register 29 (kern/arch/mips/include/kern/regdefs.h)

Additional:: * a0 contains the address of the switchframe pointer in the old thread. * a1 contains the address of the switchframe pointer in the new thread. * The switchframe pointer is really the stack pointer.

Question 3. What bus/busses does OS/161 support?
Answer: LAMEbus (kern/arch/sys161/include/bus.h)

Question 4. Why do we use typedefs like uint32_t instead of simply saying "int"?
Answer: To enforce the size of their types, as lengths can be platform dependent. Also enforces the unsigned component (Larger positive number space)

Question 5. What function is called when user-level code generates a fatal fault?
Answer: static void kill_curthread(vaddr_t epc, unsigned code, vaddr_t vaddr) (kern/arch/mips/locore/trap.c)

Question 6. How frequently are hardclock interrupts generated?
Answer: 100 times a second (kern/include/clock.h)

**Question 7. How many characters are allowed in an SFS volume name? **
Answer: 32, inc null terminator (kern/include/kern/sfs.h)