How to do these questions? there is no information about no. of stages an instruction takes?
Consider the 2 GHz clock frequency processor used execute the following program segment.
Assume the 3 clock cycles required for Register to/from memory transfer, 1 clock cycle for ADD with both operands in register, 2 clock cycle MUL with both operands in register, 3 clock cycles per word for instruction fetch and decode. What is the total time required to complete the program execution (in ns)?
A) 12
B) 15
C) 18
D) 25