Why is microprogramming so unpopular today?

What will be an ideal response?

Microcode is not generally used today in new processors because executing microcode involves too many data
paths in series. In particular, there are several ROM look?up paths in series. First, it is necessary to look up the
instruction to decode it. Then you have to look up each microinstruction in the microinstruction memory. Today,
RISC?like processors with 32?bit instructions are encoded so that the instruction word itself is able to directly
generate the signals necessary to interpret the instruction in a single cycle. In other words, the machine itself has
become the new microcode.