Horizontal microprogramming has high parallelism, It is fast over vertical.

Vertical microprogramming uses fewer bits to represent control words. (It uses decoder)

Hence in HMP = number of signals = number of bits

In VMP = number of signals (n), then bits = logn

Here answer is 256.

Vertical microprogramming uses fewer bits to represent control words. (It uses decoder)

Hence in HMP = number of signals = number of bits

In VMP = number of signals (n), then bits = logn

Here answer is 256.