A B ALUctr Zero S SIGctr ALUctr SUBctr OPctr ALctr LRctr X Cin CF SF Result ZF Y OF Cout A/L Dout L/R Din shamt C0 S Y X Pg Gg C16 F Pg Gg Cin Y X Cout P3 C1 P2 C2 C0 G1 G0 G3 C3 C4 Gg P1 Pg P0 G2 B F Cin G P A