You decide to speed up the virtual memory system of Exercise 8.21 by using a translation lookaside buffer (TLB) with 128 entries.
(a) How big (in bits) is the TLB? Give numbers for data (physical page number), tag (virtual page number), and valid bits of each entry. Show your work clearly.
(b) Sketch the TLB. Clearly label all fields and dimensions. (c) What size SRAM would you need to build the TLB described in part (b)? Give your answer in terms of depth × width.