20. Suppose you have a byte-addressable virtual address memory system with eight virtual pages of 64 bytes each and four page frames. Assuming the following page table, answer the questions below:

1.

a) How many bits are in a virtual address?
2.

b) How many bits are in a physical address?
3.

c) What physical address corresponds to the following virtual addresses? (If the address causes a page fault, simply indicate this is the case.)
1. 0x0 2. 0x44 3. 0xC2 4. 0x80

Page # 0 1 1 2 3 Frame # Valid Bit 1 3 0 0 1 4 2 1 5 6 7 0 0 0