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//////////////////////////////////////////////////////////////////////

////                                                              ////

////  Logic functions                                             ////

////                                                              ////

////  Description                                                 ////

////  Logic functions such as multiplexers                        ////

////                                                              ////

////                                                              ////

////  To Do:                                                      ////

////   -                                                          ////

////                                                              ////

////  Author(s):                                                  ////

////      - Michael Unneback, unneback@opencores.org              ////

////        ORSoC AB                                              ////

////                                                              ////

//////////////////////////////////////////////////////////////////////

////                                                              ////

//// Copyright (C) 2010 Authors and OPENCORES.ORG                 ////

////                                                              ////

//// This source file may be used and distributed without         ////

//// restriction provided that this copyright statement is not    ////

//// removed from the file and that any derivative work contains  ////

//// the original copyright notice and the associated disclaimer. ////

////                                                              ////

//// This source file 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 2.1 of the License, or (at your option) any   ////

//// later version.                                               ////

////                                                              ////

//// This source 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 this source; if not, download it   ////

//// from http://www.opencores.org/lgpl.shtml                     ////

////                                                              ////

//////////////////////////////////////////////////////////////////////

module vl_mux_andor ( a, sel, dout);

parameter width = 32;

parameter nr_of_ports = 4;

input [nr_of_ports*width-1:0] a;

input [nr_of_ports-1:0] sel;

output reg [width-1:0] dout;

integer i,j;

always @ (a, sel)

begin

    dout = a[width-1:0] & {width{sel[0]}};

    for (i=nr_of_ports-2;i<nr_of_ports;i=i+1)

        for (j=0;j<32;j=j+1)

            dout[j] = (a[(i-1)*width + j] & sel[i]) | dout[j];

end

endmodule

module vl_mux2_andor ( a1, a0, sel, dout);

parameter width = 32;

localparam nr_of_ports = 2;

input [width-1:0] a1, a0;

input [nr_of_ports-1:0] sel;

output [width-1:0] dout;

vl_mux_andor

    # ( .width(width), .nr_of_ports(nr_of_ports))

    mux0( .a({a1,a0}), .sel(sel), .dout(dout));

endmodule

module vl_mux3_andor ( a2, a1, a0, sel, dout);

parameter width = 32;

localparam nr_of_ports = 3;

input [width-1:0] a2, a1, a0;

input [nr_of_ports-1:0] sel;

output [width-1:0] dout;

vl_mux_andor

    # ( .width(width), .nr_of_ports(nr_of_ports))

    mux0( .a({a2,a1,a0}), .sel(sel), .dout(dout));

endmodule

module vl_mux4_andor ( a3, a2, a1, a0, sel, dout);

parameter width = 32;

localparam nr_of_ports = 4;

input [width-1:0] a3, a2, a1, a0;

input [nr_of_ports-1:0] sel;

output [width-1:0] dout;

vl_mux_andor

    # ( .width(width), .nr_of_ports(nr_of_ports))

    mux0( .a({a3,a2,a1,a0}), .sel(sel), .dout(dout));

endmodule

module vl_mux5_andor ( a4, a3, a2, a1, a0, sel, dout);

parameter width = 32;

localparam nr_of_ports = 5;

input [width-1:0] a4, a3, a2, a1, a0;

input [nr_of_ports-1:0] sel;

output [width-1:0] dout;

vl_mux_andor

    # ( .width(width), .nr_of_ports(nr_of_ports))

    mux0( .a({a4,a3,a2,a1,a0}), .sel(sel), .dout(dout));

endmodule

module vl_mux6_andor ( a5, a4, a3, a2, a1, a0, sel, dout);

parameter width = 32;

localparam nr_of_ports = 6;

input [width-1:0] a5, a4, a3, a2, a1, a0;

input [nr_of_ports-1:0] sel;

output [width-1:0] dout;

vl_mux_andor

    # ( .width(width), .nr_of_ports(nr_of_ports))

    mux0( .a({a5,a4,a3,a2,a1,a0}), .sel(sel), .dout(dout));

endmodule