Subversion Repositories linkruncca

/**************************************
Author: J.W Tang
Email: jaytang1987@hotmail.com
Module: row_buf
Date: 2016-04-24
 
Copyright (C) 2016 J.W. Tang
----------------------------
This file is part of LinkRunCCA.
 
LinkRunCCA is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
 
LinkRunCCA is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.
 
You should have received a copy of the GNU Lesser General Public License
along with LinkRunCCA. If not, see <http://www.gnu.org/licenses/>.
 
By using LinkRunCCA in any or associated publication,
you agree to cite it as: 
Tang, J. W., et al. "A linked list run-length-based single-pass
connected component analysis for real-time embedded hardware."
Journal of Real-Time Image Processing: 1-19. 2016.
doi:10.1007/s11554-016-0590-2.  
 
***************************************/
 
module row_buf(clk,datavalid,pix_in,pix_out1,pix_out2);
parameter length=640;
 
input clk,datavalid,pix_in;
output pix_out1,pix_out2;
 
reg [length-1:0] R;
//reg R[0:length-1];
 
always@(posedge clk)begin
	if(datavalid)begin
		R[length-1:1]<=R[length-2:0];
		R[0]<=pix_in;
	end
end
assign pix_out1=R[length-1];
assign pix_out2=R[length-2];
 
endmodule