Problems in this exercise refer to the following sequence of instructions: or ri,r2,r3 or r2,r1,r4 or ri,ri,r2 Also, assume the following cycle times for each of the options related to forwarding: Without Forwarding With Full Forwarding 250ps 300ps 1 Indicate dependences and their type. 2 Assume there is no forwarding in this pipelined processor. Indicate hazards and add nop instructions to eliminate them. 3 Assume there is full forwarding. Indicate hazards and add NOP instructions to eliminate them. 4 What is the total execution time of this instruction sequence without forwarding and with full forwarding? What is the speedup achieved by adding full forwarding to a pipeline that had no forwarding