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Diffstat (limited to 'rtl/ed25519_banks.v')
| -rw-r--r-- | rtl/ed25519_banks.v | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/rtl/ed25519_banks.v b/rtl/ed25519_banks.v deleted file mode 100644 index 1b22c4b..0000000 --- a/rtl/ed25519_banks.v +++ /dev/null @@ -1,119 +0,0 @@ -//------------------------------------------------------------------------------ -// -// ed25519_banks.v -// ----------------------------------------------------------------------------- -// Ed25519 Operand Banks -// -// Authors: Pavel Shatov -// -// Copyright (c) 2018, 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. -// -//------------------------------------------------------------------------------ - -module ed25519_banks -( - input clk, - - input banks, // 0: LO -> HI, 1: HI -> LO - - input [ 5:0] src1_operand, - input [ 5:0] src2_operand, - input [ 5:0] dst_operand, - - input [ 2:0] src1_addr, - input [ 2:0] src2_addr, - input [ 2:0] dst_addr, - - input dst_wren, - - output [31:0] src1_dout, - output [31:0] src2_dout, - - input [31:0] dst_din -); - - - // - // Banks - // - wire [31:0] bank_lo1_dout; - wire [31:0] bank_lo2_dout; - wire [31:0] bank_hi1_dout; - wire [31:0] bank_hi2_dout; - - assign src1_dout = !banks ? bank_lo1_dout : bank_hi1_dout; - assign src2_dout = !banks ? bank_lo2_dout : bank_hi2_dout; - - ed25519_bank bank_lo1 - ( - .clk (clk), - .a_addr ({dst_operand, dst_addr}), - .a_wr (dst_wren & banks), - .a_in (dst_din), - .b_addr ({src1_operand, src1_addr}), - .b_out (bank_lo1_dout) - ); - - ed25519_bank bank_lo2 - ( - .clk (clk), - .a_addr ({dst_operand, dst_addr}), - .a_wr (dst_wren & banks), - .a_in (dst_din), - .b_addr ({src2_operand, src2_addr}), - .b_out (bank_lo2_dout) - ); - - ed25519_bank bank_hi1 - ( - .clk (clk), - .a_addr ({dst_operand, dst_addr}), - .a_wr (dst_wren & ~banks), - .a_in (dst_din), - .b_addr ({src1_operand, src1_addr}), - .b_out (bank_hi1_dout) - ); - - ed25519_bank bank_hi2 - ( - .clk (clk), - .a_addr ({dst_operand, dst_addr}), - .a_wr (dst_wren & ~banks), - .a_in (dst_din), - .b_addr ({src2_operand, src2_addr}), - .b_out (bank_hi2_dout) - ); - - -endmodule - - -//------------------------------------------------------------------------------ -// End-of-File -//------------------------------------------------------------------------------ |