1- Suppose a program runs in on a computer with multiply operations responsible for 60% of the execution time.

1. What is the overall speedup achieved if the speed of multiply operations is improved by 8?
2. How much do we have to improve the speed of multiplication if i want my program to run two times faster.

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2-Convert the following C statements into equivalent MIPS assembly language:

a = 10;

b = 20;

while ((a > (b - 5))

{

D[6] = b - 10;

b = b - 5;

a = 1 - C[i];

}

Assume that the variables a, b, and i are assigned to registers $s0, $s1 and $s2 and the base address of arrays C and D are stored in registers $s6 and $s7 respectively.

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Assume that the following code segment. Calculate the address stored in the assembled instruction for the label NEXT_2?

0x00400038 add $s0, $0, $0

0x0040003C NEXT_2: add $t0, $s1, $0

0x00400040 j EXIT_2

0x00400044 sub $t1, $t0, $s0

0x00400048 addi $s0, $s0, 5

0x0040004C lw $t1, 20($0)

0x00400050 EXIT_2: bne $t1, $0, NEXT_2