Subversion Repositories theia_gpu

`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