Subversion Repositories rtf65002

// ============================================================================

//        __

//   \\__/ o\    (C) 2013  Robert Finch, Stratford

//    \  __ /    All rights reserved.

//     \/_//     robfinch<remove>@opencores.org

//       ||

//

// 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 3 of the License, or     

// (at your option) any later version.                                      

//                                                                          

// This source file 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, see <http://www.gnu.org/licenses/>.    

//                                                                          

// ============================================================================

//

module rtf65002_dtagmem(wclk, wr, wadr, cr, rclk, radr, hit);

input wclk;

input wr;

input [31:0] wadr;

input cr;

input rclk;

input [31:0] radr;

output hit;

reg [31:0] rradr;

wire [31:0] tag;

syncRam512x32_1rw1r u1

        (

                .wrst(1'b0),

                .wclk(wclk),

                .wce(1'b1),

                .we(wr),

                .wadr(wadr[10:2]),

                .i({wadr[31:1],cr}),

                .wo(),

                .rrst(1'b0),

                .rclk(rclk),

                .rce(1'b1),

                .radr(radr[10:2]),

                .o(tag)

        );

always @(posedge rclk)

        rradr <= radr;

assign hit = tag[31:11]==rradr[31:11] && tag[0];

endmodule