Subversion Repositories tiny_tate_bilinear_pairing

/*

 * Copyright 2012, Homer Hsing <homer.hsing@gmail.com>

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

`timescale 1ns / 1ps

`define P 20 // clock period 

`define M     503         // M is the degree of the irreducible polynomial

`define WIDTH (2*`M-1)    // width for a GF(3^M) element

`define WIDTH_D0 (1008-1)

module test_pairing;

        // Inputs

        reg clk;

        reg reset;

        reg sel;

        reg [5:0] addr;

        reg w;

    reg update;

    reg ready;

    reg i;

        // Outputs

        wire done;

    wire o;

    // Buffers

        reg [`WIDTH_D0:0] out;

        // Instantiate the Unit Under Test (UUT)

        pairing uut (

        .clk(clk),

        .reset(reset),

        .sel(sel),

        .addr(addr),

        .w(w),

        .update(update),

        .ready(ready),

        .i(i),

        .o(o),

        .done(done)

        );

        initial begin

                // Initialize Inputs

                clk = 0;

                reset = 0;

                sel = 0;

                addr = 0;

                w = 0;

        update = 0;

        ready = 0;

        i = 0;

        out = 0;

                // Wait 100 ns for global reset to finish

                #100;

                // Add stimulus here

        /* keep FSM silent */

        reset = 1;

            /* init xp, yp, xq, yq */

            write(3, 1006'h0412500224298894260864922a0084a98a0454681a18164a08268062495a596469659050406960a191646a024a0aa26688240682059585a258a89664946584924a9a8a1a8145400889899a6a2601184a2596419a04161969169128281805669a9509145852901691690a8506a9145224850109a150110629229564901a00);

            write(5, 1006'h161181618265a480158208a088a01aa89a424001019a90912969511008944a806119a1429520105654089861546a912295590518a90842962660a665899405681aa510844840524240145a0295855920091640a66a5a044568510469454a18a06218922914510004a25409a81a5800456055996128a965624116289904aa);

            write(6, 1006'h0412500224298894260864922a0084a98a0454681a18164a08268062495a596469659050406960a191646a024a0aa26688240682059585a258a89664946584924a9a8a1a8145400889899a6a2601184a2596419a04161969169128281805669a9509145852901691690a8506a9145224850109a150110629229564901a00);

            write(7, 1006'h161181618265a480158208a088a01aa89a424001019a90912969511008944a806119a1429520105654089861546a912295590518a90842962660a665899405681aa510844840524240145a0295855920091640a66a5a044568510469454a18a06218922914510004a25409a81a5800456055996128a965624116289904aa);

            /* read back. uncomment me if error happens */

            /* read(3);

            $display("xp = %h", out);

            read(5);

            $display("yp = %h", out);

            read(6);

            $display("xq = %h", out);

            read(7);

            $display("yq = %h", out);*/

        reset = 0;

        sel = 0; w = 0;

        @(posedge done);

        @(negedge clk);

            read(9);

            check(1006'h2965a664a44a85426524a19821aa12a42605258540a056525248149a96061560451a6a95861496a8140985a8902955951552696a425948159a2141a0aaa5840442851218546a49a2a2496658644656a9a6162a5098a025645151aa668902aaa102a0805900488980545120462896204252584282868449488a00884995a9);

            read(10);

            check(1006'h244151402864a58144a0509a26121148024224a299a4062a248944801589895a04a8a681a4245492a5aa5958901a142120515582941220529512012554699982594528256086220a55641a5a212511aa50a0a4a198200560a628994925551249659028459a8a24688191044a08529064119949a112564a52082068858890);

            read(11);

            check(1006'h180645a168488aa651260a226a124a66080299922a8595404428610808262992a22682905a55625665824505a609882a88422a886296551a6221a29a16aa11141a12280942aa84094946860205964a26669684569054810a914124a086212a5a5821440119015a98844101854a9951141981221169224a1599a11914a504);

            read(12);

            check(1006'h18a6911a415584242209a6a52629464160400a0a45554552866a9a20a8520a551856814024118140a144a151604449609aa24085a609a2a0851285445a96602a2461212641204a591a66a5604211004882191912920862a9860a861a88a005516611622a44880a48690412292244615156004952521664a84a5961510225);

            read(13);

            check(1006'h250869062a008a1882940945a20441680111009595094282260a95488aaa4588262641912aa64a29a8526408451940619612014212441090209588888a004002462206a8294a158809258852650a15226a99808952201191614814166198a52a8151454968a288295994286919811691aa21048661a5288402182a558215);

            read(14);

            check(1006'h016641111896469064656661124a160226a89485469954a6a5406aa28590655a018922965688045984585a61888165085289a61a051258a59459210842108082566966664250991442a2941521806608610a52182256042680a4881900605a8459260a9824295244629865a6a62a18958a66955152404814065588150894);

            $display("Good");

        $finish;

        end

    initial #100 forever #(`P/2) clk = ~clk;

    task write;

        input [5:0] adr;

        input [`WIDTH_D0:0] dat;

        integer j;

        begin

            sel = 1;

            w = 0;

            addr = adr;

            update = 1;

            #`P;

            update = 0;

            ready = 1;

            for(j=0;j<`WIDTH_D0+1;j=j+1)

               begin

               i = dat[j];

               #`P;

               end

            ready = 0;

            w = 1; #`P; w = 0;

        end

    endtask

    task read;

        input [5:0] adr;

        integer j;

        begin

            sel = 1;

            w = 0;

            addr = adr;

            #`P;

            update = 1;

            #`P;

            update = 0;

            out = 0;

            ready = 1;

            for(j=0;j<`WIDTH_D0+1;j=j+1)

               begin

               out = {o, out[`WIDTH_D0:1]};

               #`P;

               end

        end

    endtask

    task check;

        input [`WIDTH_D0:0] wish;

        begin

            if (out !== wish)

                begin $display("Error!"); $finish; end

        end

    endtask

endmodule