diff options
| author | Pavel V. Shatov (Meister) <meisterpaul1@yandex.ru> | 2018-12-19 15:34:55 +0300 |
|---|---|---|
| committer | Pavel V. Shatov (Meister) <meisterpaul1@yandex.ru> | 2018-12-19 15:41:00 +0300 |
| commit | c617c0c711620f58eb3ead22edcdfe57fed06088 (patch) | |
| tree | 8c15184d5ca6403ea01843560394f6d909a0986f /rtl/curve/rom/brom_p256_q.v | |
| parent | ea4d251c81c8b53e0bbc71cd1719dfea4d0517c1 (diff) | |
core for better timing performance
* Removed custom modular inversion sub-module, now uses micro-coded modular
inversion routine based on Fermat's little theorem (~10% faster)
* Uses math primitives from core/lib
* Added randomized test vector
(see user/shatov/ecdsa_fpga_model/test_vectors/)
Diffstat (limited to 'rtl/curve/rom/brom_p256_q.v')
| -rw-r--r-- | rtl/curve/rom/brom_p256_q.v | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/rtl/curve/rom/brom_p256_q.v b/rtl/curve/rom/brom_p256_q.v deleted file mode 100644 index 101a524..0000000 --- a/rtl/curve/rom/brom_p256_q.v +++ /dev/null @@ -1,68 +0,0 @@ -//====================================================================== -// -// Copyright (c) 2016, NORDUnet A/S All rights reserved. -// -// 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 brom_p256_q - ( - input wire clk, - input wire [ 3-1:0] b_addr, - output wire [32-1:0] b_out - ); - - - // - // Output Registers - // - reg [31:0] bram_reg_b; - - assign b_out = bram_reg_b; - - - // - // Read-Only Port B - // - always @(posedge clk) - // - case (b_addr) - 3'b000: bram_reg_b <= 32'hffffffff; - 3'b001: bram_reg_b <= 32'hffffffff; - 3'b010: bram_reg_b <= 32'hffffffff; - 3'b011: bram_reg_b <= 32'h00000000; - 3'b100: bram_reg_b <= 32'h00000000; - 3'b101: bram_reg_b <= 32'h00000000; - 3'b110: bram_reg_b <= 32'h00000001; - 3'b111: bram_reg_b <= 32'hffffffff; - endcase - - -endmodule |