TailCorr/rtl/z_dsp/diff_p.v

module 	diff_p	 	
(
 input                 rstn
,input                 clk
,input                 en
,input                 vldi 
,input   signed [15:0] din0
,input   signed [15:0] din1
,input   signed [15:0] din2
,input   signed [15:0] din3
,input   signed [15:0] din4
,input   signed [15:0] din5
,input   signed [15:0] din6
,input   signed [15:0] din7
,input   signed [15:0] din8
,input   signed [15:0] din9
,input   signed [15:0] dina
,input   signed [15:0] dinb
,input   signed [15:0] dinc
,input   signed [15:0] dind
,input   signed [15:0] dine
,input   signed [15:0] dinf
,output                vldo 
,output  signed	[15:0] diff_p0
,output  signed	[15:0] diff_p1
,output  signed	[15:0] diff_p2
,output  signed	[15:0] diff_p3
,output  signed	[15:0] diff_p4
,output  signed	[15:0] diff_p5
,output  signed	[15:0] diff_p6
,output  signed	[15:0] diff_p7
,output  signed	[15:0] diff_p8
,output  signed	[15:0] diff_p9
,output  signed	[15:0] diff_pa
,output  signed	[15:0] diff_pb
,output  signed	[15:0] diff_pc
,output  signed	[15:0] diff_pd
,output  signed	[15:0] diff_pe
,output  signed	[15:0] diff_pf

		 	);		
reg signed [15:0] dinf_r1;

sirv_gnrl_dfflr #(16) din_pf_1(en,dinf, dinf_r1 ,clk,rstn);

reg signed [15:0] diff_p0_r1;
reg signed [15:0] diff_p1_r1;
reg signed [15:0] diff_p2_r1;
reg signed [15:0] diff_p3_r1;
reg signed [15:0] diff_p4_r1;
reg signed [15:0] diff_p5_r1;
reg signed [15:0] diff_p6_r1;
reg signed [15:0] diff_p7_r1;
reg signed [15:0] diff_p8_r1;
reg signed [15:0] diff_p9_r1;
reg signed [15:0] diff_pa_r1;
reg signed [15:0] diff_pb_r1;
reg signed [15:0] diff_pc_r1;
reg signed [15:0] diff_pd_r1;
reg signed [15:0] diff_pe_r1;
reg signed [15:0] diff_pf_r1;

always  @(posedge clk or negedge rstn)begin
if(rstn==1'b0)begin
    diff_p0_r1 <= 0;
    diff_p1_r1 <= 0;
    diff_p2_r1 <= 0;
    diff_p3_r1 <= 0;
    diff_p4_r1 <= 0;
    diff_p5_r1 <= 0;
    diff_p6_r1 <= 0;
    diff_p7_r1 <= 0;
    diff_p8_r1 <= 0;
    diff_p9_r1 <= 0;
    diff_pa_r1 <= 0;
    diff_pb_r1 <= 0;
    diff_pc_r1 <= 0;
    diff_pd_r1 <= 0;
    diff_pe_r1 <= 0;
    diff_pf_r1 <= 0;
end
else if(en)begin
    diff_p0_r1 <= din0 - dinf_r1;
    diff_p1_r1 <= din1 - din0;
    diff_p2_r1 <= din2 - din1;
    diff_p3_r1 <= din3 - din2;
    diff_p4_r1 <= din4 - din3;
    diff_p5_r1 <= din5 - din4;
    diff_p6_r1 <= din6 - din5;
    diff_p7_r1 <= din7 - din6;
    diff_p8_r1 <= din8 - din7;
    diff_p9_r1 <= din9 - din8 ;
    diff_pa_r1 <= dina - din9 ;
    diff_pb_r1 <= dinb - dina;
    diff_pc_r1 <= dinc - dinb;
    diff_pd_r1 <= dind - dinc;
    diff_pe_r1 <= dine - dind;
    diff_pf_r1 <= dinf - dine;
end
else begin
    diff_p0_r1 <= diff_p0_r1;
    diff_p1_r1 <= diff_p1_r1;
    diff_p2_r1 <= diff_p2_r1;
    diff_p3_r1 <= diff_p3_r1;
    diff_p4_r1 <= diff_p4_r1;
    diff_p5_r1 <= diff_p5_r1;
    diff_p6_r1 <= diff_p6_r1;
    diff_p7_r1 <= diff_p7_r1;
    diff_p8_r1 <= diff_p8_r1;
    diff_p9_r1 <= diff_p9_r1;
    diff_pa_r1 <= diff_pa_r1;
    diff_pb_r1 <= diff_pb_r1;
    diff_pc_r1 <= diff_pc_r1;
    diff_pd_r1 <= diff_pd_r1;
    diff_pe_r1 <= diff_pe_r1;
    diff_pf_r1 <= diff_pf_r1;
end
end

assign diff_p0 = diff_p0_r1;
assign diff_p1 = diff_p1_r1;
assign diff_p2 = diff_p2_r1;
assign diff_p3 = diff_p3_r1;
assign diff_p4 = diff_p4_r1;
assign diff_p5 = diff_p5_r1;
assign diff_p6 = diff_p6_r1;
assign diff_p7 = diff_p7_r1;
assign diff_p8 = diff_p8_r1;
assign diff_p9 = diff_p9_r1;
assign diff_pa = diff_pa_r1;
assign diff_pb = diff_pb_r1;
assign diff_pc = diff_pc_r1;
assign diff_pd = diff_pd_r1;
assign diff_pe = diff_pe_r1;
assign diff_pf = diff_pf_r1;

sirv_gnrl_dffr #(1) vldo_1(vldi, vldo ,clk,rstn);

endmodule