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     593         // M is the degree of the irreducible polynomial

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

`define WIDTH_D0 1187

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, 1186'h088a6aa4a8aa80a9aa922965a92a56510856606aa6400649a6004866466928a20090908210195560a8162a52442029a44a68004a8168496a0a8a8564962a0948118a5599a29450214995828245914a099051991602550105228289686988621a1a9126648644619a66111a026452641169158a4686884aa212199582406600921229a5948802528289a62454a2566a4122586a496);

            write(5, 1186'h05448582294062429a891a6509092496844141090214064988646241904502a0225046a54851a05454020044881088a2092411592909289861049124644a964a6188014aa25869a09890401a924048815a1008421459455411a4a65094410615a524458901026a9108a468650515a5aa50468005881a29055980995a145995146909841aa18890902264628884421894959956195);

            write(6, 1186'h088a6aa4a8aa80a9aa922965a92a56510856606aa6400649a6004866466928a20090908210195560a8162a52442029a44a68004a8168496a0a8a8564962a0948118a5599a29450214995828245914a099051991602550105228289686988621a1a9126648644619a66111a026452641169158a4686884aa212199582406600921229a5948802528289a62454a2566a4122586a496);

            write(7, 1186'h05448582294062429a891a6509092496844141090214064988646241904502a0225046a54851a05454020044881088a2092411592909289861049124644a964a6188014aa25869a09890401a924048815a1008421459455411a4a65094410615a524458901026a9108a468650515a5aa50468005881a29055980995a145995146909841aa18890902264628884421894959956195);

            /* 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(1186'h20115a6958895a08585a412698a58250900a651a859448a4848125164545598a426119a09885802424154a08855a0042a168516099228606222540582026aa0a6029a88805a1888628856a2a64504120aa290491925284508921140a24a0a8641548a521512698985a610861a401208644612a4a52625119000006004518844899810191a056aaa680889958996508954685a0920);

            read(10);

            check(1186'h228a9556506501a0258028a8856851a5466a205a2544849a12a10a018a40aaa461959859a4408245094969a44565a160a98229805169491120568121008a04918050a9022854868440662591221116889a9668a82aa84182a59025424469164015a56698a95989555601618402286696055608a82508125aaa5882000aaa96114998660a684582889a5a5190058a0411426145250);

            read(11);

            check(1186'h001224a468a9154205488585aaa9a0a9882056194952001a88424522191052a96a21102915181a845a5509844985196696160900a0515956a2a10a100a12566408a14450049a586951896442400a8620148582958a8a51869990a161412406860012a61a66214a4461a86895640a48284528201852615921952aaaaa40802586168a929582128a985929990826a9110186891489a);

            read(12);

            check(1186'h019618a9624a522a280a06a0654418906998059625a892054996a0560a941a842589189984190884426125114000aa60a0a568285221026662226a626a8600605095054405486561a95059449282969a5a10819101a620902609052a1294182962a020512196945a2aa42598a41842096596551544969262a12a86685214a952494a956166a199682a649249a990088296422051a);

            read(13);

            check(1186'h1a6999a0105054aaa2145298116480601695482119a0619155a4414a8a82840918a512a5680a8000889a4905016868480211289860a8a5699a250245161a042846096a9866025094a189860a9829465281646040866a26959a61a18621848689101a9a95685016a9581224968461a0a108958a91205a0220a18865105928298299a642a906900289a95095845649aa41591069866);

            read(14);

            check(1186'h15a4208a19a0405005900212505098a881a49445242619a12a12491844110169529a422046a684668819599891a411954196961160591865590a699a04908a6196928965a1686a664210420908115a5816919169662656a855099464680902514586265602510840a566a94a506961a615420a908aa91959610a1a0899589600902a10962460a664104126056a82551462459169a);

            $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