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/*
 Asynchronous SDM NoC
 (C)2011 Wei Song
 Advanced Processor Technologies Group
 Computer Science, the Univ. of Manchester, UK
 
 Authors: 
 Wei Song     wsong83@gmail.com
 
 License: LGPL 3.0 or later
 
 The mesh network for simulation. 
 
 History:
 03/03/2011  Initial version. <wsong83@gmail.com>
 04/03/2011  Support VC. <wsong83@gmail.com>
 05/06/2011  Clean up for opensource. <wsong83@gmail.com>
 
*/
 
// the router structure definitions
`include "define.v"
 
module noc_top(/*AUTOARG*/
   // Inputs
   rst_n
   );
   input rst_n;
 
 
   parameter DW = 32;
   parameter VCN = 1;
   parameter FT = 3;
   parameter DIMX = 8;
   parameter DIMY = 8;
   parameter SCN = DW/2;
 
   wire [DIMX-1:0][DIMY-1:0][3:0][SCN-1:0]     di0, di1, di2, di3;
   wire [DIMX-1:0][DIMY-1:0][3:0][SCN-1:0]     do0, do1, do2, do3;
   wire [DIMX-1:0][DIMY-1:0][3:0] 	       dia, doa;
   wire [DIMX-1:0][DIMY-1:0][3:0][FT-1:0]      dift, doft;
   wire [DIMX-1:0][DIMY-1:0][3:0][VCN-1:0]     divc, dovc;
   wire [DIMX-1:0][DIMY-1:0][3:0][VCN-1:0]     dic, doc;
   wire [DIMX-1:0][DIMY-1:0][3:0][VCN-1:0]     dica, doca;
 
   genvar 				     x, y;   
 
   generate for(x=0; x<DIMX; x++) begin: DX
      for(y=0; y<DIMY; y++) begin: DY
 
	 node_top #(.DW(DW), .VCN(VCN), .FT(FT), .x(x), .y(y))
	 NN (
	     .si0 (di0[x][y][0]), .si1 (di1[x][y][0]), .si2 (di2[x][y][0]), .si3 (di3[x][y][0]), .sia (dia[x][y][0]), .sift(dift[x][y][0]), .sivc(divc[x][y][0]), .sic(dic[x][y][0]), .sica(dica[x][y][0]),
	     .wi0 (di0[x][y][1]), .wi1 (di1[x][y][1]), .wi2 (di2[x][y][1]), .wi3 (di3[x][y][1]), .wia (dia[x][y][1]), .wift(dift[x][y][1]), .wivc(divc[x][y][1]), .wic(dic[x][y][1]), .wica(dica[x][y][1]),
	     .ni0 (di0[x][y][2]), .ni1 (di1[x][y][2]), .ni2 (di2[x][y][2]), .ni3 (di3[x][y][2]), .nia (dia[x][y][2]), .nift(dift[x][y][2]), .nivc(divc[x][y][2]), .nic(dic[x][y][2]), .nica(dica[x][y][2]),
	     .ei0 (di0[x][y][3]), .ei1 (di1[x][y][3]), .ei2 (di2[x][y][3]), .ei3 (di3[x][y][3]), .eia (dia[x][y][3]), .eift(dift[x][y][3]), .eivc(divc[x][y][3]), .eic(dic[x][y][3]), .eica(dica[x][y][3]),
	     .so0 (do0[x][y][0]), .so1 (do1[x][y][0]), .so2 (do2[x][y][0]), .so3 (do3[x][y][0]), .soa (doa[x][y][0]), .soft(doft[x][y][0]), .sovc(dovc[x][y][0]), .soc(doc[x][y][0]), .soca(doca[x][y][0]),
	     .wo0 (do0[x][y][1]), .wo1 (do1[x][y][1]), .wo2 (do2[x][y][1]), .wo3 (do3[x][y][1]), .woa (doa[x][y][1]), .woft(doft[x][y][1]), .wovc(dovc[x][y][1]), .woc(doc[x][y][1]), .woca(doca[x][y][1]),
	     .no0 (do0[x][y][2]), .no1 (do1[x][y][2]), .no2 (do2[x][y][2]), .no3 (do3[x][y][2]), .noa (doa[x][y][2]), .noft(doft[x][y][2]), .novc(dovc[x][y][2]), .noc(doc[x][y][2]), .noca(doca[x][y][2]),
	     .eo0 (do0[x][y][3]), .eo1 (do1[x][y][3]), .eo2 (do2[x][y][3]), .eo3 (do3[x][y][3]), .eoa (doa[x][y][3]), .eoft(doft[x][y][3]), .eovc(dovc[x][y][3]), .eoc(doc[x][y][3]), .eoca(doca[x][y][3]),
	     .rst_n(rst_n)
	     );
 
	 // north link
	 if(x==0) begin
	    assign di0[x][y][2] = do0[x][y][2];
	    assign di1[x][y][2] = do1[x][y][2];
	    assign di2[x][y][2] = do2[x][y][2];
	    assign di3[x][y][2] = do3[x][y][2];
	    assign doa[x][y][2] = dia[x][y][2];
	    assign dift[x][y][2] = doft[x][y][2];
	    assign divc[x][y][2] = dovc[x][y][2];
	    assign doc[x][y][2] = dic[x][y][2];
	    assign dica[x][y][2] = doca[x][y][2];
	 end else begin
	    assign di0[x][y][2] = do0[x-1][y][0];
	    assign di1[x][y][2] = do1[x-1][y][0];
	    assign di2[x][y][2] = do2[x-1][y][0];
	    assign di3[x][y][2] = do3[x-1][y][0];
	    assign doa[x-1][y][0] = dia[x][y][2];
	    assign dift[x][y][2] = doft[x-1][y][0];
	    assign divc[x][y][2] = dovc[x-1][y][0];
	    assign doc[x-1][y][0] = dic[x][y][2];
	    assign dica[x][y][2] = doca[x-1][y][0];
	 end	    
 
	 // south link
	 if(x==DIMX-1) begin
	    assign di0[x][y][0] = do0[x][y][0];
	    assign di1[x][y][0] = do1[x][y][0];
	    assign di2[x][y][0] = do2[x][y][0];
	    assign di3[x][y][0] = do3[x][y][0];
	    assign doa[x][y][0] = dia[x][y][0];
	    assign dift[x][y][0] = doft[x][y][0];
	    assign divc[x][y][0] = dovc[x][y][0];
	    assign doc[x][y][0] = dic[x][y][0];
	    assign dica[x][y][0] = doca[x][y][0];
	 end else begin
	    assign di0[x][y][0] = do0[x+1][y][2];
	    assign di1[x][y][0] = do1[x+1][y][2];
	    assign di2[x][y][0] = do2[x+1][y][2];
	    assign di3[x][y][0] = do3[x+1][y][2];
	    assign doa[x+1][y][2] = dia[x][y][0];
	    assign dift[x][y][0] = doft[x+1][y][2];
	    assign divc[x][y][0] = dovc[x+1][y][2];
	    assign doc[x+1][y][2] = dic[x][y][0];
	    assign dica[x][y][0] = doca[x+1][y][2];
	 end
 
	 // west link
	 if(y==0) begin
	    assign di0[x][y][1] = do0[x][y][1];
	    assign di1[x][y][1] = do1[x][y][1];
	    assign di2[x][y][1] = do2[x][y][1];
	    assign di3[x][y][1] = do3[x][y][1];
	    assign doa[x][y][1] = dia[x][y][1];
	    assign dift[x][y][1] = doft[x][y][1];
	    assign divc[x][y][1] = dovc[x][y][1];
	    assign doc[x][y][1] = dic[x][y][1];
	    assign dica[x][y][1] = doca[x][y][1];
	 end else begin
	    assign di0[x][y][1] = do0[x][y-1][3];
	    assign di1[x][y][1] = do1[x][y-1][3];
	    assign di2[x][y][1] = do2[x][y-1][3];
	    assign di3[x][y][1] = do3[x][y-1][3];
	    assign doa[x][y-1][3] = dia[x][y][1];
	    assign dift[x][y][1] = doft[x][y-1][3];
	    assign divc[x][y][1] = dovc[x][y-1][3];
	    assign doc[x][y-1][3] = dic[x][y][1];
	    assign dica[x][y][1] = doca[x][y-1][3];
	 end // else: !if(y==0)
 
	 // east link
	 if(y==DIMY-1) begin
	    assign di0[x][y][3] = do0[x][y][3];
	    assign di1[x][y][3] = do1[x][y][3];
	    assign di2[x][y][3] = do2[x][y][3];
	    assign di3[x][y][3] = do3[x][y][3];
	    assign doa[x][y][3] = dia[x][y][3];
	    assign dift[x][y][3] = doft[x][y][3];
	    assign divc[x][y][3] = dovc[x][y][3];
	    assign doc[x][y][3] = dic[x][y][3];
	    assign dica[x][y][3] = doca[x][y][3];
	 end else begin
	    assign di0[x][y][3] = do0[x][y+1][1];
	    assign di1[x][y][3] = do1[x][y+1][1];
	    assign di2[x][y][3] = do2[x][y+1][1];
	    assign di3[x][y][3] = do3[x][y+1][1];
	    assign doa[x][y+1][1] = dia[x][y][3];
	    assign dift[x][y][3] = doft[x][y+1][1];
	    assign divc[x][y][3] = dovc[x][y+1][1];
	    assign doc[x][y+1][1] = dic[x][y][3];
	    assign dica[x][y][3] = doca[x][y+1][1];
	 end // else: !if(y==DIMY-1)
 
      end // block: DY
   end // block: DX
   endgenerate
 
endmodule // noc_top
 

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