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Diffstat (limited to 'bench/tb_mw_comparator.v')
-rw-r--r-- | bench/tb_mw_comparator.v | 322 |
1 files changed, 0 insertions, 322 deletions
diff --git a/bench/tb_mw_comparator.v b/bench/tb_mw_comparator.v deleted file mode 100644 index abab8bc..0000000 --- a/bench/tb_mw_comparator.v +++ /dev/null @@ -1,322 +0,0 @@ -//------------------------------------------------------------------------------ -// -// tb_mw_comparator.v -// ----------------------------------------------------------------------------- -// Testbench for multi-word comparator. -// -// 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_mw_comparator;
-
-
- //
- // Test Vectors
- //
- localparam [383:0] A_0 = 384'hBDC7B53C_616B13B5_77622510_75BA95FC_475D568B_79E730D4_18A9143C_18905F76;
-
- localparam [383:0] A_1 = 384'hBDC7B53C_616B13B5_77622510_75BA95FC_475D568B_79E730D4_18A9143C_18905F75;
- localparam [383:0] A_2 = 384'hBDC7B53C_616B13B5_77622510_75BA95FC_475D568B_79E730D4_18A9143C_18905F77;
-
- localparam [383:0] A_3 = 384'hBDC7B53C_616B13B5_77622510_75BA95FC_375D568B_79E730D4_18A9143C_18905F76;
- localparam [383:0] A_4 = 384'hBDC7B53C_616B13B5_77622510_75BA95FC_575D568B_79E730D4_18A9143C_18905F76;
-
- localparam [383:0] A_5 = 384'hBDC7B53C_616B13B5_77622510_75BA95FB_475D568B_79E730D4_18A9143C_18905F76;
- localparam [383:0] A_6 = 384'hBDC7B53C_616B13B5_77622510_75BA95FD_475D568B_79E730D4_18A9143C_18905F76;
-
- localparam [383:0] A_7 = 384'hADC7B53C_616B13B5_77622510_75BA95FC_475D568B_79E730D4_18A9143C_18905F76;
- localparam [383:0] A_8 = 384'hCDC7B53C_616B13B5_77622510_75BA95FC_475D568B_79E730D4_18A9143C_18905F76;
-
- localparam [383:0] B_0 = 384'h348A6D1F_7C66D21E_8D1490D9_AA6AE3C0_AD784F98_850046D4_10DDD64D_F6BB32E5;
-
- localparam [383:0] B_1 = 384'h348A6D1F_7C66D21E_8D1490D9_AA6AE3C0_AD784F98_850046D4_10DDD64D_F6BB32E4;
- localparam [383:0] B_2 = 384'h348A6D1F_7C66D21E_8D1490D9_AA6AE3C0_AD784F98_850046D4_10DDD64D_F6BB32E6;
-
- localparam [383:0] B_3 = 384'h348A6D1F_7C66D21E_8D1490D9_AA6AE3C0_9D784F98_850046D4_10DDD64D_F6BB32E5;
- localparam [383:0] B_4 = 384'h348A6D1F_7C66D21E_8D1490D9_AA6AE3C0_BD784F98_850046D4_10DDD64D_F6BB32E5;
-
- localparam [383:0] B_5 = 384'h348A6D1F_7C66D21E_8D1490D9_AA6AE3BF_AD784F98_850046D4_10DDD64D_F6BB32E5;
- localparam [383:0] B_6 = 384'h348A6D1F_7C66D21E_8D1490D9_AA6AE3C1_AD784F98_850046D4_10DDD64D_F6BB32E5;
-
- localparam [383:0] B_7 = 384'h248A6D1F_7C66D21E_8D1490D9_AA6AE3C0_AD784F98_850046D4_10DDD64D_F6BB32E5;
- localparam [383:0] B_8 = 384'h448A6D1F_7C66D21E_8D1490D9_AA6AE3C0_AD784F98_850046D4_10DDD64D_F6BB32E5;
-
-
- //
- // Core Parameters
- //
- localparam WORD_COUNTER_WIDTH = 3;
- parameter OPERAND_NUM_WORDS = 8;
-
-
- //
- // Clock (100 MHz)
- //
- reg clk = 1'b0;
- always #5 clk = ~clk;
-
-
- //
- // Inputs, Outputs
- //
- reg rst_n;
- reg ena;
- wire rdy;
-
- wire core_cmp_l;
- wire core_cmp_e;
- wire core_cmp_g;
-
-
- // - // Buffers (X, Y) - // - wire [WORD_COUNTER_WIDTH-1:0] core_xy_addr;
-
- wire [ 32-1:0] core_x_data;
- wire [ 32-1:0] core_y_data;
-
- reg [WORD_COUNTER_WIDTH-1:0] tb_xy_addr;
- reg tb_xy_wren;
-
- reg [ 32-1:0] tb_x_data;
- reg [ 32-1:0] tb_y_data;
-
- bram_1rw_1ro_readfirst # - ( - .MEM_WIDTH (32), - .MEM_ADDR_BITS (WORD_COUNTER_WIDTH) - ) - bram_x - ( - .clk (clk), - - .a_addr (tb_xy_addr), - .a_wr (tb_xy_wren), - .a_in (tb_x_data), - .a_out (), - - .b_addr (core_xy_addr), - .b_out (core_x_data) - );
-
- bram_1rw_1ro_readfirst # - ( - .MEM_WIDTH (32), - .MEM_ADDR_BITS (WORD_COUNTER_WIDTH) - ) - bram_y - ( - .clk (clk), - - .a_addr (tb_xy_addr), - .a_wr (tb_xy_wren), - .a_in (tb_y_data), - .a_out (), - - .b_addr (core_xy_addr), - .b_out (core_y_data) - );
-
-
- //
- // UUT
- //
- mw_comparator #
- (
- .WORD_COUNTER_WIDTH (WORD_COUNTER_WIDTH),
- .OPERAND_NUM_WORDS (OPERAND_NUM_WORDS)
- )
- uut
- (
- .clk (clk),
- .rst_n (rst_n),
-
- .ena (ena),
- .rdy (rdy),
-
- .xy_addr (core_xy_addr),
- .x_din (core_x_data),
- .y_din (core_y_data),
-
- .cmp_l (core_cmp_l),
- .cmp_e (core_cmp_e),
- .cmp_g (core_cmp_g)
- );
-
-
- //
- // Testbench Routine
- //
- reg ok = 1;
- initial begin
-
- /* initialize control inputs */
- rst_n = 0;
- ena = 0;
-
- tb_xy_wren = 0;
-
- /* wait for some time */
- #200;
-
- /* de-assert reset */
- rst_n = 1;
-
- /* wait for some time */
- #100;
-
- /* run tests */
- test_mw_comparator(A_0, A_0);
-
- test_mw_comparator(A_0, A_1);
- test_mw_comparator(A_0, A_2);
- test_mw_comparator(A_0, A_3);
- test_mw_comparator(A_0, A_4);
- test_mw_comparator(A_0, A_5);
- test_mw_comparator(A_0, A_6);
- test_mw_comparator(A_0, A_7);
- test_mw_comparator(A_0, A_8);
-
- test_mw_comparator(B_0, B_0);
-
- test_mw_comparator(B_0, B_1);
- test_mw_comparator(B_0, B_2);
- test_mw_comparator(B_0, B_3);
- test_mw_comparator(B_0, B_4);
- test_mw_comparator(B_0, B_5);
- test_mw_comparator(B_0, B_6);
- test_mw_comparator(B_0, B_7);
- test_mw_comparator(B_0, B_8);
-
- /* print result */
- if (ok) $display("tb_mw_comparator: SUCCESS"); - else $display("tb_mw_comparator: FAILURE"); - // - $finish; - //
- end
-
-
- //
- // Test Task
- //
- reg cmp_l;
- reg cmp_e;
- reg cmp_g;
- reg cmp_ok;
-
- integer w;
-
- task test_mw_comparator;
-
- input [255:0] x;
- input [255:0] y;
-
- reg [255:0] x_shreg;
- reg [255:0] y_shreg;
-
- begin
-
- /* start filling memories */ - tb_xy_wren = 1; - - /* initialize shift registers */ - x_shreg = x; - y_shreg = y; - - /* write all the words */ - for (w=0; w<OPERAND_NUM_WORDS; w=w+1) begin - - /* set addresses */ - tb_xy_addr = w[WORD_COUNTER_WIDTH-1:0]; - - /* set data words */ - tb_x_data = x_shreg[31:0]; - tb_y_data = y_shreg[31:0]; - - /* shift inputs */ - x_shreg = {{32{1'bX}}, x_shreg[255:32]}; - y_shreg = {{32{1'bX}}, y_shreg[255:32]}; - - /* wait for 1 clock tick */ - #10; - - end - - /* wipe addresses */ - tb_xy_addr = {WORD_COUNTER_WIDTH{1'bX}}; - - /* wipe data words */ - tb_x_data = {32{1'bX}}; - tb_y_data = {32{1'bX}}; - - /* stop filling memories */ - tb_xy_wren = 0;
-
- /* calculate reference values */
- cmp_l = (x < y) ? 1 : 0;
- cmp_e = (x == y) ? 1 : 0;
- cmp_g = (x > y) ? 1 : 0;
-
- /* start operation */
- ena = 1;
-
- /* clear flag */
- #10 ena = 0;
-
- /* wait for operation to complete */
- while (!rdy) #10;
-
- /* compare */
- cmp_ok = (cmp_l == core_cmp_l) && (cmp_e == core_cmp_e) && (cmp_g == core_cmp_g);
-
- /* display results */
- $display("test_mw_comparator(): %s", cmp_ok ? "OK" : "ERROR");
-
- /* update global flag */ - ok = ok && cmp_ok;
-
- end
-
- endtask
-
-endmodule
-
-
-//------------------------------------------------------------------------------ -// End-of-File -//------------------------------------------------------------------------------
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