Problem 3 (15 pts) a) A program runs in 15 seconds on computer A, which has a 1 GHz clock. You are trying to help a computer designer build a computer, B, which will run this program in 7 seconds. The designer has determined that a substantial increase in the clock rate is possible, but this increase will affect the rest of the CPU design, causing computer B to require 1.4 times as many clock cycles as computer A for this program. What clock rate should you tell the designer to target for computer B? b) Assume that the contents (in hexadecimal) of some registers/memory locations are initially as shown in the following table: Register or Memory Contents $s Ox00000011 $s 1 Oxabcd1111 $s2 0x00fedc08 $s3 Oxff000009 Mem[0x00fedc04] Oxalb2c3d4 Mem[Ox00fedc08] 0x87654321 Mem[0x00fedc0c] 0x12345600 What would the contents of Sto, $s4, $s5, Mem[0x00fedc04), Mem[0x00fedc08), and Mem[0x00fedcOc) after the following code segment is run? lw $t0,($s2) addu $s4, $s0, $to and $55, $81, $s3 beq $sl, $s2, Label $54,-4($s2) $s3, 0($s2) $55, 4($s2) Label: SW SW SW