Simple instruction formats:
RISC uses simple instruction formats. Usually only one or a few instruction formats are used. In these machines instruction length is fixed and aligned on word boundaries. Additionally the field locations can also be fixed. Such an instruction format has a number of advantages. With opcode decoding, fixed fields and register operand accessing can take place in parallel. This kind of design has many benefits. These are:
- It makes simpler the control unit
- Simple fetching as memory words of equal size are to be fetched
- Instructions aren't across page boundaries.
So RISC is possibly a very strong architecture. It has high performance potential and can support VLSI implementation.