Q3- We consider the following program which is executed based on MIPS processor: lw $10,20($1) sub $11,$2,$3 We distinguish two modes of execution: without or with pipeline. 1. Explain by a figure the execution ( stages and clock cycles) of the instructions of the program for the two modes 2. By applying the formula (defined in chapter 3 part 2 ), calculate the number of execution cycles for the two modes Q4- Considering the following program and by applying the formula (defined in chapter 3 part 2), Calculate the number of execution cycles without and with pipeline