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authorPavel V. Shatov (Meister) <meisterpaul1@yandex.ru>2016-10-31 00:14:51 +0300
committerPavel V. Shatov (Meister) <meisterpaul1@yandex.ru>2016-10-31 00:14:51 +0300
commit25e338149fdb8e06c82d99600769a8498a85ef2c (patch)
treecf4b855bcf1083f3cffebf6a98b5aaad45baf362 /rtl/lowlevel/artix7/dsp48e1_wrapper.v
Initial commit of base point multiplier core for ECDSA curve P-256.
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+//------------------------------------------------------------------------------
+//
+// dsp48e1_wrapper.v
+// -----------------------------------------------------------------------------
+// Hardware (Artix-7 DSP48E1) tile wrapper.
+//
+// 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 dsp48e1_wrapper
+ (
+ input clk,
+
+ input ce,
+
+ input [ 6: 0] opmode,
+ input [ 3: 0] alumode,
+
+ input carry,
+
+ input [29: 0] a,
+ input [17: 0] b,
+ input [47: 0] c,
+
+ output [47: 0] p
+ );
+
+
+ //
+ // Tile instantiation
+ //
+ DSP48E1 #
+ (
+ .AREG (0),
+ .BREG (0),
+ .CREG (0),
+ .DREG (1),
+ .MREG (0),
+ .PREG (1),
+ .ADREG (0),
+
+ .ACASCREG (0),
+ .BCASCREG (0),
+ .ALUMODEREG (0),
+ .INMODEREG (0),
+ .OPMODEREG (0),
+ .CARRYINREG (0),
+ .CARRYINSELREG (0),
+
+ .A_INPUT ("DIRECT"),
+ .B_INPUT ("DIRECT"),
+
+ .USE_DPORT ("FALSE"),
+ .USE_MULT ("DYNAMIC"),
+ .USE_SIMD ("ONE48"),
+
+ .USE_PATTERN_DETECT ("NO_PATDET"),
+ .SEL_PATTERN ("PATTERN"),
+ .SEL_MASK ("MASK"),
+ .PATTERN (48'h000000000000),
+ .MASK (48'h3fffffffffff),
+ .AUTORESET_PATDET ("NO_RESET")
+ )
+ DSP48E1_inst
+ (
+ .CLK (clk),
+
+ .RSTA (1'b0),
+ .RSTB (1'b0),
+ .RSTC (1'b0),
+ .RSTD (1'b0),
+ .RSTM (1'b0),
+ .RSTP (1'b0),
+
+ .RSTCTRL (1'b0),
+ .RSTINMODE (1'b0),
+ .RSTALUMODE (1'b0),
+ .RSTALLCARRYIN (1'b0),
+
+ .CEA1 (1'b0),
+ .CEA2 (1'b0),
+ .CEB1 (1'b0),
+ .CEB2 (1'b0),
+ .CEC (1'b0),
+ .CED (1'b0),
+ .CEM (1'b0),
+ .CEP (ce),
+ .CEAD (1'b0),
+ .CEALUMODE (1'b0),
+ .CEINMODE (1'b0),
+
+ .CECTRL (1'b0),
+ .CECARRYIN (1'b0),
+
+ .A (a),
+ .B (b),
+ .C (c),
+ .D ({25{1'b1}}),
+ .P (p),
+
+ .CARRYIN (carry),
+ .CARRYOUT (),
+ .CARRYINSEL (3'b000),
+
+ .CARRYCASCIN (1'b0),
+ .CARRYCASCOUT (),
+
+ .PATTERNDETECT (),
+ .PATTERNBDETECT (),
+
+ .OPMODE (opmode),
+ .ALUMODE (alumode),
+ .INMODE (5'b00000),
+
+ .MULTSIGNIN (1'b0),
+ .MULTSIGNOUT (),
+
+ .UNDERFLOW (),
+ .OVERFLOW (),
+
+ .ACIN (30'd0),
+ .BCIN (18'd0),
+ .PCIN (48'd0),
+
+ .ACOUT (),
+ .BCOUT (),
+ .PCOUT ()
+ );
+
+endmodule