MIPS ALUControl

It depends on both MIPS opcode and MIPS function code .

Approach

• Naive

  Brute force, use opcode + function code, deal with 12 input bits.

• Pro

  MIPS ALU Multilevel decoding .

  Use some of the input to reduce cases, generate output.

  Reduce size of the main controller + up the ease of design + circuit speedup.