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Diffstat (limited to 'bench/tb_curve_adder_256.v')
| -rw-r--r-- | bench/tb_curve_adder_256.v | 420 |
1 files changed, 420 insertions, 0 deletions
diff --git a/bench/tb_curve_adder_256.v b/bench/tb_curve_adder_256.v new file mode 100644 index 0000000..a20743a --- /dev/null +++ b/bench/tb_curve_adder_256.v @@ -0,0 +1,420 @@ +//------------------------------------------------------------------------------ +// +// tb_curve_adder_256.v +// ----------------------------------------------------------------------------- +// Testbench for 256-bit curve point adder. +// +// Authors: Pavel Shatov +// +// Copyright (c) 2016, NORDUnet A/S +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are met: +// +// - Redistributions of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// +// - Redistributions in binary form must reproduce the above copyright notice, +// this list of conditions and the following disclaimer in the documentation +// and/or other materials provided with the distribution. +// +// - Neither the name of the NORDUnet nor the names of its contributors may be +// used to endorse or promote products derived from this software without +// specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE +// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +// POSSIBILITY OF SUCH DAMAGE. +// +//------------------------------------------------------------------------------ + +//------------------------------------------------------------------------------ +`timescale 1ns / 1ps +//------------------------------------------------------------------------------ + +module tb_curve_adder_256; + + + // + // Test Vectors + // + localparam [255:0] PX_1 = 256'ha536512112e4bb911ae72744a914761ddc53700f889c88e583e0edd45c179b08; + localparam [255:0] PY_1 = 256'h239e73bf40f4831ab71ccea072291893ac8582982ea6fec6bd6aaf36ac32d22e; + localparam [255:0] PZ_1 = 256'h32258ae04c5498bb34b29c54a7f95afc10c009540c51731eae164750ca385029;
+
+ localparam [255:0] RX_1 = 256'he4fcdd1a151b405b2a567d20d7674031c6d5b207b0b5dcf277015d81784492d5; + localparam [255:0] RY_1 = 256'h4782c540b58988b07bb8e0c5ad3ff562dd45c075a39ee71896d5eb33702dd656; + localparam [255:0] RZ_1 = 256'hae637ff2fd5468780241afb3a8ebaeb8618e86b4a1a211b350546c9e6fea93d4;
+
+ localparam [255:0] PX_2 = 256'he58a6470e038f6b261d5a9a72fb2bd96b6bad433ff7baea6a40b5facf5085189; + localparam [255:0] PY_2 = 256'h03dd8785b592307811ee5512e2d713c5dc65f60f01883340fe0f56f858a39474; + localparam [255:0] PZ_2 = 256'h1b4657b1e79c9074fbf7f63f96ce2854db4808afc72841fac623dc68d9bff64d; + + localparam [255:0] RX_2 = 256'hc354e99a827a3f1c30f29f6b1d72273eb0daaeb06bb373ed315e305b89d857ca; + localparam [255:0] RY_2 = 256'h0cb054f95589c1fcbe763df3b8d7badd568d5e93a667076dddfc70dcfab74948; + localparam [255:0] RZ_2 = 256'hd79d9170dd628aee82d149715a6ec6cc44426ccae236d2a146edbd15a564ea53;
+
+ localparam [255:0] PX_3 = 256'hbf5fe30c79025a0b638b0fd62bf1349aee0a9fc7fc2719291b0c23535c16eb52; + localparam [255:0] PY_3 = 256'h8a637c7c0b9459de664d40a717e1abc0f843f03169fae943e0835cbe767da06b; + localparam [255:0] PZ_3 = 256'h0871d93601d654216912866514a788a92e8a9b6047611bf185d459e204727377; + + localparam [255:0] RX_3 = 256'h1ba6259b5b750e4d6e4f490f661646cd9491be16965f47044ac2688048e567c5; + localparam [255:0] RY_3 = 256'h80e55c16f403f8d7282bca628477771a45330567caa5aaab9a54919dbe05e3e4; + localparam [255:0] RZ_3 = 256'hb99663f045c9602b05f23aaaa508e6167d15740be900175dbeceb957a9dad951;
+
+ localparam [255:0] PX_4 = 256'hxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx; + localparam [255:0] PY_4 = 256'hxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx; + localparam [255:0] PZ_4 = 256'h0000000000000000000000000000000000000000000000000000000000000000; + + localparam [255:0] RX_4 = 256'h6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296; // G.x + localparam [255:0] RY_4 = 256'h4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5; // G.y + localparam [255:0] RZ_4 = 256'h0000000000000000000000000000000000000000000000000000000000000001;
+
+ localparam [255:0] PX_5 = 256'h6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296; // G.x + localparam [255:0] PY_5 = 256'h4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5; // G.y + localparam [255:0] PZ_5 = 256'h0000000000000000000000000000000000000000000000000000000000000001; + + localparam [255:0] RX_5 = 256'h29d05c193da77b710e86323538b77e1b11f904fea42998be16bd8d744ece7ad0; // H.x + localparam [255:0] RY_5 = 256'hb01cbd1c01e58065711814b583f061e9d431cca994cea1313449bf97c840ae07; // H.y + localparam [255:0] RZ_5 = 256'h0000000000000000000000000000000000000000000000000000000000000001;
+
+ localparam [255:0] PX_6 = 256'h6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296; // G.x + localparam [255:0] PY_6 = 256'h4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5; // G.y + localparam [255:0] PZ_6 = 256'h0000000000000000000000000000000000000000000000000000000000000001; + + localparam [255:0] RX_6 = 256'h0000000000000000000000000000000000000000000000000000000000000001; + localparam [255:0] RY_6 = 256'h0000000000000000000000000000000000000000000000000000000000000001; + localparam [255:0] RZ_6 = 256'h0000000000000000000000000000000000000000000000000000000000000000;
+
+ localparam [255:0] Q = 256'hffffffff00000001000000000000000000000000ffffffffffffffffffffffff;
+
+
+ // + // Core Parameters + // + localparam WORD_COUNTER_WIDTH = 3; + localparam OPERAND_NUM_WORDS = 8;
+ + + // + // Clock (100 MHz) + // + reg clk = 1'b0; + always #5 clk = ~clk; + + + // + // Inputs, Outputs + // + reg rst_n; + reg ena;
+ wire rdy; + + + // + // Buffers (PX, PY, PZ, RX, RY, RZ, Q) + // + wire [WORD_COUNTER_WIDTH-1:0] core_px_addr; + wire [WORD_COUNTER_WIDTH-1:0] core_py_addr;
+ wire [WORD_COUNTER_WIDTH-1:0] core_pz_addr;
+
+ wire [WORD_COUNTER_WIDTH-1:0] core_rx_addr; + wire [WORD_COUNTER_WIDTH-1:0] core_ry_addr;
+ wire [WORD_COUNTER_WIDTH-1:0] core_rz_addr;
+
+ wire [WORD_COUNTER_WIDTH-1:0] core_q_addr;
+
+ wire core_rx_wren;
+ wire core_ry_wren;
+ wire core_rz_wren;
+
+ wire [ 32-1:0] core_px_data; + wire [ 32-1:0] core_py_data;
+ wire [ 32-1:0] core_pz_data;
+
+ wire [ 32-1:0] core_rx_data_wr; + wire [ 32-1:0] core_ry_data_wr;
+ wire [ 32-1:0] core_rz_data_wr;
+
+ wire [ 32-1:0] core_rx_data_rd; + wire [ 32-1:0] core_ry_data_rd;
+ wire [ 32-1:0] core_rz_data_rd;
+
+ wire [ 32-1:0] core_q_data;
+
+ reg [WORD_COUNTER_WIDTH-1:0] tb_xyzq_addr; + reg tb_xyzq_wren; + + reg [ 31:0] tb_px_data; + reg [ 31:0] tb_py_data; + reg [ 31:0] tb_pz_data; + wire [ 31:0] tb_rx_data; + wire [ 31:0] tb_ry_data; + wire [ 31:0] tb_rz_data;
+ reg [ 31:0] tb_q_data;
+
+ bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_px + ( .clk(clk), + .a_addr(tb_xyzq_addr), .a_wr(tb_xyzq_wren), .a_in(tb_px_data), .a_out(), + .b_addr(core_px_addr), .b_out(core_px_data) + );
+
+ bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_py + ( .clk(clk), + .a_addr(tb_xyzq_addr), .a_wr(tb_xyzq_wren), .a_in(tb_py_data), .a_out(), + .b_addr(core_py_addr), .b_out(core_py_data) + );
+
+ bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_pz + ( .clk(clk), + .a_addr(tb_xyzq_addr), .a_wr(tb_xyzq_wren), .a_in(tb_pz_data), .a_out(), + .b_addr(core_pz_addr), .b_out(core_pz_data) + );
+
+ bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_q + ( .clk(clk), + .a_addr(tb_xyzq_addr), .a_wr(tb_xyzq_wren), .a_in(tb_q_data), .a_out(), + .b_addr(core_q_addr), .b_out(core_q_data) + );
+
+ bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_rx + ( .clk(clk), + .a_addr(core_rx_addr), .a_wr(core_rx_wren), .a_in(core_rx_data_wr), .a_out(core_rx_data_rd), + .b_addr(tb_xyzq_addr), .b_out(tb_rx_data) + );
+
+ bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_ry + ( .clk(clk), + .a_addr(core_ry_addr), .a_wr(core_ry_wren), .a_in(core_ry_data_wr), .a_out(core_ry_data_rd), + .b_addr(tb_xyzq_addr), .b_out(tb_ry_data) + );
+
+ bram_1rw_1ro_readfirst # (.MEM_WIDTH(32), .MEM_ADDR_BITS(WORD_COUNTER_WIDTH)) + bram_rz + ( .clk(clk), + .a_addr(core_rz_addr), .a_wr(core_rz_wren), .a_in(core_rz_data_wr), .a_out(core_rz_data_rd), + .b_addr(tb_xyzq_addr), .b_out(tb_rz_data) + );
+
+
+ //
+ // Opcode
+ //
+ wire [ 5: 0] add_uop_addr; + wire [19: 0] add_uop;
+
+ uop_add_rom add_rom + ( + .clk (clk), + .addr (add_uop_addr), + .data (add_uop) + );
+ + // + // UUT + // + curve_dbl_add_256 uut + ( + .clk (clk), + .rst_n (rst_n), + + .ena (ena), + .rdy (rdy),
+ + .uop_addr (add_uop_addr), + .uop (add_uop),
+
+ .px_addr (core_px_addr),
+ .py_addr (core_py_addr),
+ .pz_addr (core_pz_addr),
+ .rx_addr (core_rx_addr),
+ .ry_addr (core_ry_addr),
+ .rz_addr (core_rz_addr),
+ .q_addr (core_q_addr),
+
+ .rx_wren (core_rx_wren),
+ .ry_wren (core_ry_wren),
+ .rz_wren (core_rz_wren),
+
+ .px_din (core_px_data),
+ .py_din (core_py_data),
+ .pz_din (core_pz_data),
+ .rx_din (core_rx_data_rd),
+ .ry_din (core_ry_data_rd),
+ .rz_din (core_rz_data_rd),
+ .rx_dout (core_rx_data_wr),
+ .ry_dout (core_ry_data_wr),
+ .rz_dout (core_rz_data_wr),
+ .q_din (core_q_data) + ); + + + // + // Testbench Routine + // + reg ok = 1; + initial begin + + /* initialize control inputs */ + rst_n = 0; + ena = 0; + + /* wait for some time */ + #200; + + /* de-assert reset */ + rst_n = 1; + + /* wait for some time */ + #100; + + /* run tests */ + test_curve_adder(PX_1, PY_1, PZ_1, RX_1, RY_1, RZ_1); + test_curve_adder(PX_2, PY_2, PZ_2, RX_2, RY_2, RZ_2);
+ test_curve_adder(PX_3, PY_3, PZ_3, RX_3, RY_3, RZ_3);
+ test_curve_adder(PX_4, PY_4, PZ_4, RX_4, RY_4, RZ_4);
+ test_curve_adder(PX_5, PY_5, PZ_5, RX_5, RY_5, RZ_5);
+ test_curve_adder(PX_6, Q - PY_6, PZ_6, RX_6, RY_6, RZ_6); + + /* print result */ + if (ok) $display("tb_curve_adder_256: SUCCESS"); + else $display("tb_curve_adder_256: FAILURE"); + // + $finish; + // + end + + + // + // Test Task + // + reg t_ok;
+
+ integer w;
+ + task test_curve_adder; + + input [255:0] px; + input [255:0] py; + input [255:0] pz;
+
+ input [255:0] rx; + input [255:0] ry; + input [255:0] rz; +
+ reg [255:0] px_shreg;
+ reg [255:0] py_shreg;
+ reg [255:0] pz_shreg;
+
+ reg [255:0] rx_shreg;
+ reg [255:0] ry_shreg;
+ reg [255:0] rz_shreg;
+
+ reg [255:0] q_shreg;
+ + begin + + /* start filling memories */
+ tb_xyzq_wren = 1;
+
+ /* initialize shift registers */ + px_shreg = px; + py_shreg = py;
+ pz_shreg = pz;
+ q_shreg = Q; +
+ /* write all the words */ + for (w=0; w<OPERAND_NUM_WORDS; w=w+1) begin + + /* set addresses */ + tb_xyzq_addr = w[WORD_COUNTER_WIDTH-1:0]; + + /* set data words */ + tb_px_data = px_shreg[31:0]; + tb_py_data = py_shreg[31:0]; + tb_pz_data = pz_shreg[31:0];
+ tb_q_data = q_shreg[31:0]; + + /* shift inputs */ + px_shreg = {{32{1'bX}}, px_shreg[255:32]}; + py_shreg = {{32{1'bX}}, py_shreg[255:32]}; + pz_shreg = {{32{1'bX}}, pz_shreg[255:32]};
+ q_shreg = {{32{1'bX}}, q_shreg[255:32]}; + + /* wait for 1 clock tick */ + #10; + + end
+
+ /* wipe addresses */ + tb_xyzq_addr = {WORD_COUNTER_WIDTH{1'bX}}; + + /* wipe data words */ + tb_px_data = {32{1'bX}}; + tb_py_data = {32{1'bX}}; + tb_pz_data = {32{1'bX}};
+ tb_q_data = {32{1'bX}}; + + /* stop filling memories */ + tb_xyzq_wren = 0;
+ + /* start operation */ + ena = 1; + + /* clear flag */ + #10 ena = 0; + + /* wait for operation to complete */ + while (!rdy) #10; +
+ /* read result */ + for (w=0; w<OPERAND_NUM_WORDS; w=w+1) begin + + /* set address */ + tb_xyzq_addr = w[WORD_COUNTER_WIDTH-1:0]; + + /* wait for 1 clock tick */ + #10; + + /* store data word */ + rx_shreg = {tb_rx_data, rx_shreg[255:32]};
+ ry_shreg = {tb_ry_data, ry_shreg[255:32]};
+ rz_shreg = {tb_rz_data, rz_shreg[255:32]}; + + end
+ + /* compare */ + t_ok = (rx_shreg == rx) &&
+ (ry_shreg == ry) &&
+ (rz_shreg == rz); + + /* display results */ + $display("test_curve_adder(): %s", t_ok ? "OK" : "ERROR"); + + /* update global flag */ + ok = ok && t_ok; + + end + + endtask
+ +endmodule +
+ +//------------------------------------------------------------------------------ +// End-of-File +//------------------------------------------------------------------------------ |