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`timescale 1ns / 1ps

`include "aDefinitions.v"

/**********************************************************************************

Theia, Ray Cast Programable graphic Processing Unit.

Copyright (C) 2010  Diego Valverde (diego.valverde.g@gmail.com)

This program is free software; you can redistribute it and/or

modify it under the terms of the GNU General Public License

as published by the Free Software Foundation; either version 2

of the License, or (at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

***********************************************************************************/

//------------------------------------------------------------------------------

module Module_OMemInterface

(

        input wire Clock,

        input wire Reset,

        input wire                  iWriteEnable,

        input wire [`DATA_ROW_WIDTH-1:0]     iData,

        input wire [`DATA_ROW_WIDTH-1:0]     iAddress,

        output wire [`WB_WIDTH-1:0] ADR_O,

        output wire[`WB_WIDTH-1:0]  DAT_O,

        output wire                                         WE_O

);

wire [2:0] wCurrentWord;

assign WE_O = iWriteEnable;

CIRCULAR_SHIFTLEFT_POSEDGE #(3) SHL

(

  .Clock(Clock),

  .Enable(iWriteEnable),

  .Reset(Reset),

  .Initial(3'b1),

  .O(wCurrentWord)

);

MUXFULLPARALELL_3SEL_WALKINGONE # ( `WB_WIDTH ) MUX1

 (

        .Sel( wCurrentWord ),

        .I3(iAddress[31:0]),

        .I2(iAddress[63:32]),

        .I1(iAddress[95:64]),

        .O1( ADR_O )

 );

 MUXFULLPARALELL_3SEL_WALKINGONE # ( `WB_WIDTH ) MUX2

 (

        .Sel( wCurrentWord ),

        .I3(iData[31:0]),

        .I2(iData[63:32]),

        .I1(iData[95:64]),

        .O1( DAT_O )

 );

endmodule