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Diffstat (limited to 'lowlevel/artix7/dsp48e1_wrapper_modexp.v')
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diff --git a/lowlevel/artix7/dsp48e1_wrapper_modexp.v b/lowlevel/artix7/dsp48e1_wrapper_modexp.v new file mode 100644 index 0000000..17d8efe --- /dev/null +++ b/lowlevel/artix7/dsp48e1_wrapper_modexp.v @@ -0,0 +1,159 @@ +//------------------------------------------------------------------------------ +// +// dsp48e1_wrapper_modexp.v +// ----------------------------------------------------------------------------- +// Extended hardware (Artix-7 DSP48E1) tile wrapper. +// +// Authors: Pavel Shatov +// +// Copyright (c) 2016-2018, 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 modexpa7_dsp48e1_wrapper_modexp # + ( + parameter AREG = 1'b0, + parameter PREG = 1'b0, + + parameter A_INPUT = "DIRECT" + ) + ( + input clk, + input [ 6: 0] opmode, + input [29: 0] a, + input [17: 0] b, + output [47: 0] p, + input [29: 0] acin, + input [47: 0] pcin, + output [29: 0] acout, + output [47: 0] pcout + ); + + // + // Tile instantiation + // + DSP48E1 # + ( + .AREG (AREG), + .BREG (1'b1), + .CREG (0), + .DREG (0), + .MREG (0), + .PREG (PREG), + .ADREG (0), + + .ACASCREG (AREG), + .BCASCREG (1'b1), + .ALUMODEREG (0), + .INMODEREG (0), + .OPMODEREG (0), + .CARRYINREG (0), + .CARRYINSELREG (0), + + .A_INPUT (A_INPUT), + .B_INPUT ("DIRECT"), + + .USE_DPORT ("FALSE"), + .USE_MULT ("MULTIPLY"), + .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 (AREG), + .CEB1 (1'b0), + .CEB2 (1'b1), + .CEC (1'b0), + .CED (1'b0), + .CEM (1'b0), + .CEP (PREG), + .CEAD (1'b0), + .CEALUMODE (1'b0), + .CEINMODE (1'b0), + + .CECTRL (1'b0), + .CECARRYIN (1'b0), + + .A (a), + .B (b), + .C ({48{1'b0}}), + .D ({25{1'b1}}), + .P (p), + + .CARRYIN (1'b0), + .CARRYOUT (), + .CARRYINSEL (3'b000), + + .CARRYCASCIN (1'b0), + .CARRYCASCOUT (), + + .PATTERNDETECT (), + .PATTERNBDETECT (), + + .OPMODE (opmode), + .ALUMODE (4'b0000), + .INMODE (5'b00000), + + .MULTSIGNIN (1'b0), + .MULTSIGNOUT (), + + .UNDERFLOW (), + .OVERFLOW (), + + .ACIN (acin), + .BCIN (18'd0), + .PCIN (pcin), + + .ACOUT (acout), + .BCOUT (), + .PCOUT (pcout) + ); + +endmodule |