module IIR_top #( parameter data_out_width = 18 ,parameter coef_width = 32 ,parameter a0_width = 32 ,parameter b0_width = 29 ,parameter b0_i_width = 29 ,parameter b0_o_width = 19 ,parameter a1_width = 19 ,parameter b1_width = 19 ,parameter b1_i_width = 19 ,parameter b1_o_width = 19 ,parameter a2_width = 21 ,parameter b2_width = 21 ,parameter b2_i_width = 19 ,parameter b2_o_width = 19 ,parameter a3_width = 21 ,parameter b3_width = 21 ,parameter b3_i_width = 19 ,parameter b3_o_width = 19 ,parameter a4_width = 20 ,parameter b4_width = 20 ,parameter b4_i_width = 19 ,parameter b4_o_width = 18 ,parameter a5_width = 21 ,parameter b5_width = 21 ,parameter b5_i_width = 18 ,parameter b5_o_width = 18 ,parameter a6_width = 21 ,parameter b6_width = 21 ,parameter b6_i_width = 18 ,parameter b6_o_width = 18 ,parameter a7_width = 22 ,parameter b7_width = 22 ,parameter b7_i_width = 18 ,parameter b7_o_width = 18 ,parameter a8_width = 23 ,parameter b8_width = 23 ,parameter b8_i_width = 18 ,parameter b8_o_width = 18 ,parameter a9_width = 24 ,parameter b9_width = 24 ,parameter b9_i_width = 18 ,parameter b9_o_width = 18 ,parameter a10_width = 25 ,parameter b10_width = 25 ,parameter b10_i_width = 18 ,parameter b10_o_width = 18 ,parameter a11_width = 26 ,parameter b11_width = 26 ,parameter b11_i_width = 18 ,parameter b11_o_width = 18 ,parameter a12_width = 27 ,parameter b12_width = 27 ,parameter b12_i_width = 18 ,parameter b12_o_width = 18 ,parameter a13_width = 28 ,parameter b13_width = 28 ,parameter b13_i_width = 18 ,parameter b13_o_width = 18 ,parameter a14_width = 29 ,parameter b14_width = 29 ,parameter b14_i_width = 18 ,parameter b14_o_width = 18 ,parameter a15_width = 29 ,parameter b15_width = 29 ,parameter b15_i_width = 18 ,parameter b15_o_width = 18 ) ( input rstn ,input clk ,input en ,input signed [15 :0] IIRin_p0 // x(8n+9) ,input signed [15 :0] IIRin_p1 // x(8n+10) ,input signed [15 :0] IIRin_p2 // x(8n+11) ,input signed [15 :0] IIRin_p3 // x(8n+12) ,input signed [15 :0] IIRin_p4 // x(8n+13) ,input signed [15 :0] IIRin_p5 // x(8n+14) ,input signed [15 :0] IIRin_p6 // x(8n+15) ,input signed [15 :0] IIRin_p7 // x(8n+16) ,input signed [15 :0] IIRin_p8 // x(8n+9) ,input signed [15 :0] IIRin_p9 // x(8n+10) ,input signed [15 :0] IIRin_pa // x(8n+11) ,input signed [15 :0] IIRin_pb // x(8n+12) ,input signed [15 :0] IIRin_pc // x(8n+13) ,input signed [15 :0] IIRin_pd // x(8n+14) ,input signed [15 :0] IIRin_pe // x(8n+15) ,input signed [15 :0] IIRin_pf // x(8n+16) ,input signed [15 :0] IIRin_p0_r2 // x(8n+9) delay 2M -> x(8n- 7) ,input signed [15 :0] IIRin_p1_r4 // x(8n+10) delay 4M -> x(8n-22) ,input signed [15 :0] IIRin_p2_r6 // x(8n+11) delay 6M -> x(8n-37) ,input signed [15 :0] IIRin_p3_r8 // x(8n+12) delay 8M -> x(8n-52) ,input signed [15 :0] IIRin_p4_r10 // x(8n+13) delay 10M -> x(8n-67) ,input signed [15 :0] IIRin_p5_r12 // x(8n+14) delay 12M -> x(8n-82) ,input signed [15 :0] IIRin_p6_r14 // x(8n+15) delay 14M -> x(8n-97) ,input signed [15 :0] IIRin_p7_r16 // x(8n+16) delay 16M -> x(8n-112) ,input signed [15 :0] IIRin_p8_r18 // x(8n+15) delay 18M -> x(8n-127) ,input signed [15 :0] IIRin_p9_r20 // x(8n+14) delay 20M -> x(8n-142) ,input signed [15 :0] IIRin_pa_r22 // x(8n+13) delay 22M -> x(8n-157) ,input signed [15 :0] IIRin_pb_r24 // x(8n+12) delay 24M -> x(8n-172) ,input signed [15 :0] IIRin_pc_r26 // x(8n+11) delay 26M -> x(8n-187) ,input signed [15 :0] IIRin_pd_r28 // x(8n+10) delay 28M -> x(8n-202) ,input signed [15 :0] IIRin_pe_r30 // x(8n+9) delay 30M -> x(8n-217) ,input signed [31 :0] a_re ,input signed [31 :0] b_re ,input signed [31 :0] ab_re ,input signed [31 :0] abb_re ,input signed [31 :0] ab_pow3_re ,input signed [31 :0] ab_pow4_re ,input signed [31 :0] ab_pow5_re ,input signed [31 :0] ab_pow6_re ,input signed [31 :0] ab_pow7_re ,input signed [31 :0] ab_pow8_re ,input signed [31 :0] ab_pow9_re ,input signed [31 :0] ab_powa_re ,input signed [31 :0] ab_powb_re ,input signed [31 :0] ab_powc_re ,input signed [31 :0] ab_powd_re ,input signed [31 :0] ab_powe_re ,input signed [31 :0] ab_powf_re ,input signed [31 :0] b_pow16_re ,input signed [31 :0] a_im ,input signed [31 :0] b_im ,input signed [31 :0] ab_im ,input signed [31 :0] abb_im ,input signed [31 :0] ab_pow3_im ,input signed [31 :0] ab_pow4_im ,input signed [31 :0] ab_pow5_im ,input signed [31 :0] ab_pow6_im ,input signed [31 :0] ab_pow7_im ,input signed [31 :0] ab_pow8_im ,input signed [31 :0] ab_pow9_im ,input signed [31 :0] ab_powa_im ,input signed [31 :0] ab_powb_im ,input signed [31 :0] ab_powc_im ,input signed [31 :0] ab_powd_im ,input signed [31 :0] ab_powe_im ,input signed [31 :0] ab_powf_im ,input signed [31 :0] b_pow16_im ,output signed [data_out_width-1 :0] IIRout_p0 // y(8n-8) ,output signed [data_out_width-1 :0] IIRout_p1 // y(8n-23) ,output signed [data_out_width-1 :0] IIRout_p2 // y(8n-38) ,output signed [data_out_width-1 :0] IIRout_p3 // y(8n-53) ,output signed [data_out_width-1 :0] IIRout_p4 // y(8n-68) ,output signed [data_out_width-1 :0] IIRout_p5 // y(8n-83) ,output signed [data_out_width-1 :0] IIRout_p6 // y(8n-98) ,output signed [data_out_width-1 :0] IIRout_p7 // y(8n-113) ,output signed [data_out_width-1 :0] IIRout_p8 // y(8n-128) ,output signed [data_out_width-1 :0] IIRout_p9 // y(8n-143) ,output signed [data_out_width-1 :0] IIRout_pa // y(8n-158) ,output signed [data_out_width-1 :0] IIRout_pb // y(8n-173) ,output signed [data_out_width-1 :0] IIRout_pc // y(8n-188) ,output signed [data_out_width-1 :0] IIRout_pd // y(8n-203) ,output signed [data_out_width-1 :0] IIRout_pe // y(8n-218) ,output signed [data_out_width-1 :0] IIRout_pf // y(8n-233) ); wire signed [b0_o_width- 1:0] IIRout_p0_re; wire signed [b1_o_width- 1:0] IIRout_p1_re; wire signed [b2_o_width- 1:0] IIRout_p2_re; wire signed [b3_o_width- 1:0] IIRout_p3_re; wire signed [b4_o_width- 1:0] IIRout_p4_re; wire signed [b5_o_width- 1:0] IIRout_p5_re; wire signed [b6_o_width- 1:0] IIRout_p6_re; wire signed [b7_o_width- 1:0] IIRout_p7_re; wire signed [b8_o_width- 1:0] IIRout_p8_re; wire signed [b9_o_width- 1:0] IIRout_p9_re; wire signed [b10_o_width- 1:0] IIRout_pa_re; wire signed [b11_o_width- 1:0] IIRout_pb_re; wire signed [b12_o_width- 1:0] IIRout_pc_re; wire signed [b13_o_width- 1:0] IIRout_pd_re; wire signed [b14_o_width- 1:0] IIRout_pe_re; wire signed [b15_o_width- 1:0] IIRout_pf_re; wire signed [b0_o_width- 1:0] IIRout_p0_im; wire signed [b1_o_width- 1:0] IIRout_p1_im; wire signed [b2_o_width- 1:0] IIRout_p2_im; wire signed [b3_o_width- 1:0] IIRout_p3_im; wire signed [b4_o_width- 1:0] IIRout_p4_im; wire signed [b5_o_width- 1:0] IIRout_p5_im; wire signed [b6_o_width- 1:0] IIRout_p6_im; wire signed [b7_o_width- 1:0] IIRout_p7_im; wire signed [b8_o_width- 1:0] IIRout_p8_im; wire signed [b9_o_width- 1:0] IIRout_p9_im; wire signed [b10_o_width- 1:0] IIRout_pa_im; wire signed [b11_o_width- 1:0] IIRout_pb_im; wire signed [b12_o_width- 1:0] IIRout_pc_im; wire signed [b13_o_width- 1:0] IIRout_pd_im; wire signed [b14_o_width- 1:0] IIRout_pe_im; wire signed [b15_o_width- 1:0] IIRout_pf_im; IIR_Filter_p16#( .coef_width ( coef_width ), .b_pow16_width ( b0_width ), .ab_pow_width ( a0_width ), .temp_var_width ( b0_i_width ), .data_out_width ( b0_o_width ) )inst_iir_p0( .rstn ( rstn ), .clk ( clk ), .en ( en ), .dinp0 ( IIRin_pf ), .dinp1 ( IIRin_pe ), .dinp2 ( IIRin_pd ), .dinp3 ( IIRin_pc ), .dinp4 ( IIRin_pb ), .dinp5 ( IIRin_pa ), .dinp6 ( IIRin_p9 ), .dinp7 ( IIRin_p8 ), .dinp8 ( IIRin_p7 ), .dinp9 ( IIRin_p6 ), .dinpa ( IIRin_p5 ), .dinpb ( IIRin_p4 ), .dinpc ( IIRin_p3 ), .dinpd ( IIRin_p2 ), .dinpe ( IIRin_p1 ), .dinpf ( IIRin_p0 ), .a_re ( a_re ), .ab_re ( ab_re ), .abb_re ( abb_re ), .ab_pow3_re ( ab_pow3_re ), .ab_pow4_re ( ab_pow4_re ), .ab_pow5_re ( ab_pow5_re ), .ab_pow6_re ( ab_pow6_re ), .ab_pow7_re ( ab_pow7_re ), .ab_pow8_re ( ab_pow8_re ), .ab_pow9_re ( ab_pow9_re ), .ab_powa_re ( ab_powa_re ), .ab_powb_re ( ab_powb_re ), .ab_powc_re ( ab_powc_re ), .ab_powd_re ( ab_powd_re ), .ab_powe_re ( ab_powe_re ), .ab_powf_re ( ab_powf_re ), .b_pow16_re ( b_pow16_re ), .a_im ( a_im ), .ab_im ( ab_im ), .abb_im ( abb_im ), .ab_pow3_im ( ab_pow3_im ), .ab_pow4_im ( ab_pow4_im ), .ab_pow5_im ( ab_pow5_im ), .ab_pow6_im ( ab_pow6_im ), .ab_pow7_im ( ab_pow7_im ), .ab_pow8_im ( ab_pow8_im ), .ab_pow9_im ( ab_pow9_im ), .ab_powa_im ( ab_powa_im ), .ab_powb_im ( ab_powb_im ), .ab_powc_im ( ab_powc_im ), .ab_powd_im ( ab_powd_im ), .ab_powe_im ( ab_powe_im ), .ab_powf_im ( ab_powf_im ), .b_pow16_im ( b_pow16_im ), .dout_re ( IIRout_p0_re ), .dout_im ( IIRout_p0_im ) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a1_width ), .b_width (b1_width ), .cascade_in_width (b1_i_width ), .data_out_width (b1_o_width ) ) inst_iir_p1( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_p0_r2 ), // x(8n-7) .dout_r1_re (IIRout_p0_re ), // Re(y(8n-8)) .dout_r1_im (IIRout_p0_im ), // Re(y(8n-8)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_p1_re ), // Re(y(8n-23)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_p1_im ) // Re(y(8n-23)) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a2_width ), .b_width (b2_width ), .cascade_in_width (b2_i_width ), .data_out_width (b2_o_width ) ) inst_iir_p2 ( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_p1_r4 ), // x(8n-22) .dout_r1_re (IIRout_p1_re ), // Re(y(8n-23)) .dout_r1_im (IIRout_p1_im ), // Re(y(8n-23)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_p2_re ), // Re(y(8n-38)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_p2_im ) // Re(y(8n-38)) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a3_width ), .b_width (b3_width ), .cascade_in_width (b3_i_width ), .data_out_width (b3_o_width ) ) inst_iir_p3 ( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_p2_r6 ), // x(8n-37) .dout_r1_re (IIRout_p2_re ), // Re(y(8n-38)) .dout_r1_im (IIRout_p2_im ), // Re(y(8n-38)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_p3_re ), // Re(y(8n-53)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_p3_im ) // Re(y(8n-53)) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a4_width ), .b_width (b4_width ), .cascade_in_width (b4_i_width ), .data_out_width (b4_o_width ) ) inst_iir_p4 ( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_p3_r8 ), // x(8n-52) .dout_r1_re (IIRout_p3_re ), // Re(y(8n-53)) .dout_r1_im (IIRout_p3_im ), // Re(y(8n-53)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_p4_re ), // Re(y(8n-68)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_p4_im ) // Re(y(8n-68)) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a5_width ), .b_width (b5_width ), .cascade_in_width (b5_i_width ), .data_out_width (b5_o_width ) ) inst_iir_p5 ( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_p4_r10 ), // x(8n-67) .dout_r1_re (IIRout_p4_re ), // Re(y(8n-68)) .dout_r1_im (IIRout_p4_im ), // Re(y(8n-68)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_p5_re ), // Re(y(8n-83)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_p5_im ) // Re(y(8n-83)) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a6_width ), .b_width (b6_width ), .cascade_in_width (b6_i_width ), .data_out_width (b6_o_width ) ) inst_iir_p6 ( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_p5_r12 ), // x(8n-82) .dout_r1_re (IIRout_p5_re ), // Re(y(8n-83)) .dout_r1_im (IIRout_p5_im ), // Re(y(8n-83)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_p6_re ), // Re(y(8n-98)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_p6_im ) // Re(y(8n-98)) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a7_width ), .b_width (b7_width ), .cascade_in_width (b7_i_width ), .data_out_width (b7_o_width ) ) inst_iir_p7 ( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_p6_r14 ), // x(8n-97) .dout_r1_re (IIRout_p6_re ), // Re(y(8n-98)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_p7_re ), // Re(y(8n-113)) .dout_r1_im (IIRout_p6_im ), // Re(y(8n-98)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_p7_im ) // Re(y(8n-113)) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a8_width ), .b_width (b8_width ), .cascade_in_width (b8_i_width ), .data_out_width (b8_o_width ) ) inst_iir_p8 ( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_p7_r16 ), // x(8n-112) .dout_r1_re (IIRout_p7_re ), // Re(y(8n-113)) .dout_r1_im (IIRout_p7_im ), // Re(y(8n-113)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_p8_re ), // Re(y(8n-128)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_p8_im ) // Re(y(8n-128)) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a9_width ), .b_width (b9_width ), .cascade_in_width (b9_i_width ), .data_out_width (b9_o_width ) ) inst_iir_p9 ( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_p8_r18 ), // x(8n-127) .dout_r1_re (IIRout_p8_re ), // Re(y(8n-128)) .dout_r1_im (IIRout_p8_im ), // Re(y(8n-128)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_p9_re ), // Re(y(8n-143)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_p9_im ) // Re(y(8n-143)) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a10_width ), .b_width (b10_width ), .cascade_in_width (b10_i_width ), .data_out_width (b10_o_width ) ) inst_iir_pa ( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_p9_r20 ), // x(8n-142) .dout_r1_re (IIRout_p9_re ), // Re(y(8n-143)) .dout_r1_im (IIRout_p9_im ), // Re(y(8n-143)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_pa_re ), // Re(y(8n-158)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_pa_im ) // Re(y(8n-158)) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a11_width ), .b_width (b11_width ), .cascade_in_width (b11_i_width ), .data_out_width (b11_o_width ) ) inst_iir_pb ( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_pa_r22 ), // x(8n-157) .dout_r1_re (IIRout_pa_re ), // Re(y(8n-158)) .dout_r1_im (IIRout_pa_im ), // Re(y(8n-158)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_pb_re ), // Re(y(8n-173)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_pb_im ) // Re(y(8n-173)) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a12_width ), .b_width (b12_width ), .cascade_in_width (b12_i_width ), .data_out_width (b12_o_width ) ) inst_iir_pc ( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_pb_r24 ), // x(8n-172) .dout_r1_re (IIRout_pb_re ), // Re(y(8n-173)) .dout_r1_im (IIRout_pb_im ), // Re(y(8n-173)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_pc_re ), // Re(y(8n-188)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_pc_im ) // Re(y(8n-188)) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a13_width ), .b_width (b13_width ), .cascade_in_width (b13_i_width ), .data_out_width (b13_o_width ) ) inst_iir_pd ( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_pc_r26 ), // x(8n-187) .dout_r1_re (IIRout_pc_re ), // Re(y(8n-188)) .dout_r1_im (IIRout_pc_im ), // Re(y(8n-188)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_pd_re ), // Re(y(8n-203)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_pd_im ) // Re(y(8n-203)) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a14_width ), .b_width (b14_width ), .cascade_in_width (b14_i_width ), .data_out_width (b14_o_width ) ) inst_iir_pe ( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_pd_r28 ), // x(8n-202) .dout_r1_re (IIRout_pd_re ), // Re(y(8n-203)) .dout_r1_im (IIRout_pd_im ), // Re(y(8n-203)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_pe_re ), // Re(y(8n-218)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_pe_im ) // Re(y(8n-218)) ); IIR_Filter_p1 #( .coef_width (coef_width ), .a_width (a15_width ), .b_width (b15_width ), .cascade_in_width (b15_i_width ), .data_out_width (b15_o_width ) ) inst_iir_pf ( .clk (clk ), .rstn (rstn ), .en (en ), .din_re (IIRin_pe_r30 ), // x(8n-217) .dout_r1_re (IIRout_pe_re ), // Re(y(8n-218)) .dout_r1_im (IIRout_pe_im ), // Re(y(8n-218)) .a_re (a_re ), .b_re (b_re ), .dout_re (IIRout_pf_re ), // Re(y(8n-233)) .a_im (a_im ), .b_im (b_im ), .dout_im (IIRout_pf_im ) // Re(y(8n-233)) ); assign IIRout_p0 = IIRout_p0_re[b0_o_width-1 : b0_o_width-data_out_width]; // y(8n-8) assign IIRout_p1 = IIRout_p1_re[b1_o_width-1 : b1_o_width-data_out_width]; // y(8n-23) assign IIRout_p2 = IIRout_p2_re[b2_o_width-1 : b2_o_width-data_out_width]; // y(8n-38) assign IIRout_p3 = IIRout_p3_re[b3_o_width-1 : b3_o_width-data_out_width]; // y(8n-53) assign IIRout_p4 = IIRout_p4_re[b4_o_width-1 : b4_o_width-data_out_width]; // y(8n-68) assign IIRout_p5 = IIRout_p5_re[b5_o_width-1 : b5_o_width-data_out_width]; // y(8n-83) assign IIRout_p6 = IIRout_p6_re[b6_o_width-1 : b6_o_width-data_out_width]; // y(8n-98) assign IIRout_p7 = IIRout_p7_re[b7_o_width-1 : b7_o_width-data_out_width]; // y(8n-113) assign IIRout_p8 = IIRout_p8_re[b8_o_width-1 : b8_o_width-data_out_width]; // y(8n-128) assign IIRout_p9 = IIRout_p9_re[b9_o_width-1 : b9_o_width-data_out_width]; // y(8n-143) assign IIRout_pa = IIRout_pa_re[b10_o_width-1 : b10_o_width-data_out_width]; // y(8n-158) assign IIRout_pb = IIRout_pb_re[b11_o_width-1 : b11_o_width-data_out_width]; // y(8n-173) assign IIRout_pc = IIRout_pc_re[b12_o_width-1 : b12_o_width-data_out_width]; // y(8n-188) assign IIRout_pd = IIRout_pd_re[b13_o_width-1 : b13_o_width-data_out_width]; // y(8n-203) assign IIRout_pe = IIRout_pe_re[b14_o_width-1 : b14_o_width-data_out_width]; // y(8n-218) assign IIRout_pf = IIRout_pf_re[b15_o_width-1 : b15_o_width-data_out_width]; // y(8n-233) endmodule