19 Suppose we have a deeply pipelined processor, for which we implement a BTB for the conditional branches only. Assume that the misprediction penalty is always 4 cycles and the buffer miss penalty is always 3 cycles. Assume 90% hit rate and 90% accuracy, and 15% branch frequency. How much faster is the processor with the BTB versus a processor that has a fixed 2 cycle branch penalty? Assume a base CPI without .branch stalls of 1 Prediction accuracy of 90% Hit rate in the buffer of 90% * branch frequency 15% (3 (3 )