3. Dynamic Instruction Scheduling II [22 marks] a) [8 marks] There is a flow dependence from instruction 'alpha' to instruction 'beta. The station containing 'alpha' is hotheaded and divorces its functional unit before the latter completes. How might this violate the flow dependence? b) [8 marks] Three instructions---a producer, a consumer, and one that writes to the p/c operand are dispatched in this order. If producer impersonation is impossible, why can't the third instruction harm the operand? are dispatched before any one completes. How many updates does the common destination register receive? Explain. 3. Dynamic Instruction Scheduling II [22 marks] a) [8 marks] There is a flow dependence from instruction 'alpha' to instruction 'beta. The station containing 'alpha' is hotheaded and divorces its functional unit before the latter completes. How might this violate the flow dependence? b) [8 marks] Three instructions---a producer, a consumer, and one that writes to the p/c operand are dispatched in this order. If producer impersonation is impossible, why can't the third instruction harm the operand? are dispatched before any one completes. How many updates does the common destination register receive? Explain