Branch
PCUpdate
PCWrite
RegWrite
MemWrite
IRWrite
ResultSrc[1:0]
ALUSrcB[1:0]
ALUSrcA[1:0]
AdrSrc
op[6:0]
Zero
ALUOp[1:0]
ALUCtl[2:0]
op[6:0]
ImmSrc[1:0]
op[6:0]
funct3[2:0]
funct7[5]
Main FSM
ALU Decoder
Instr Decoder