assign SP0 = (P1[Ai0%(S_in2*S_in2)][Fi][M-1])? {10'b1111111111,P1[Ai0%(S_in2*S_in2)][Fi][M-1:10]}: {10'b0000000000,P1[Ai0%(S_in2*S_in2)][Fi][M-1:10]};