diff options
author | Rob Austein <sra@hactrn.net> | 2017-03-07 19:55:09 -0500 |
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committer | Rob Austein <sra@hactrn.net> | 2017-03-07 19:55:09 -0500 |
commit | c09de3ee3a303bfab596def8e0b5c8b845e5a97f (patch) | |
tree | 6d191698da2a870c22205df77f9c4745b8898b38 /rtl/lowlevel/artix7/adder47_artix7.v | |
parent | ee269e585e173ee71b6861299d6f889878848514 (diff) |
Promote to a repository in the core tree.
Change name of reset signal from rst_n to reset_n for consistancy with
other Cryptech cores.
Code common between this core and the ecdsa256 core split out into a
separate library repository.
Minor cleanup (Windows-isms, indentation).
Diffstat (limited to 'rtl/lowlevel/artix7/adder47_artix7.v')
-rw-r--r-- | rtl/lowlevel/artix7/adder47_artix7.v | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/rtl/lowlevel/artix7/adder47_artix7.v b/rtl/lowlevel/artix7/adder47_artix7.v deleted file mode 100644 index 00566e4..0000000 --- a/rtl/lowlevel/artix7/adder47_artix7.v +++ /dev/null @@ -1,91 +0,0 @@ -//------------------------------------------------------------------------------ -// -// adder47_artix7.v -// ----------------------------------------------------------------------------- -// Hardware (Artix-7 DSP48E1) 47-bit 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. -// -//------------------------------------------------------------------------------
-
-module adder47_artix7
- (
- input clk, // clock
- input [46: 0] a, // operand input
- input [46: 0] b, // operand input
- output [46: 0] s // sum output
- );
-
- //
- // Lower and higher parts of operand
- //
- wire [17: 0] bl = b[17: 0];
- wire [28: 0] bh = b[46:18];
-
- //
- // DSP48E1 Slice
- //
-
- /* Operation Mode */
- wire [ 3: 0] dsp48e1_alumode = 4'b0000;
- wire [ 6: 0] dsp48e1_opmode = 7'b0110011;
-
- /* Internal Product */
- wire [47: 0] p_int;
-
- dsp48e1_wrapper dsp_adder
- (
- .clk (clk),
-
- .ce (1'b1),
-
- .carry (1'b0),
-
- .alumode (dsp48e1_alumode),
- .opmode (dsp48e1_opmode),
-
- .a ({1'b0, bh}),
- .b (bl),
- .c ({1'b0, a}),
-
- .p (p_int)
- );
-
- //
- // Output Mapping
- //
- assign s = p_int[46: 0];
-
-endmodule
-
-//------------------------------------------------------------------------------ -// End-of-File -//------------------------------------------------------------------------------
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