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Diffstat (limited to 'lowlevel/cryptech_primitive_switch.vh')
| -rw-r--r-- | lowlevel/cryptech_primitive_switch.vh | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/lowlevel/cryptech_primitive_switch.vh b/lowlevel/cryptech_primitive_switch.vh new file mode 100644 index 0000000..a4aad45 --- /dev/null +++ b/lowlevel/cryptech_primitive_switch.vh @@ -0,0 +1,94 @@ +//====================================================================== +// +// Copyright (c) 2018, 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. +// +//====================================================================== + +/* IMPORTANT: The scope of `define in Verilog is somewhat unevident (one + "compilation unit"), thus all `defines are prefixed with + CRYPTECH_ to prevent any potentical conflicts. + */ + +/* NOTE: You can comment the following line when simulating to use generic + primitives and get some speedup, otherwise un-comment it to take + advantage of vendor-specific hardware math slices when building the + bitstream. + */ + + + // generic/vendor switch +`define CRYPTECH_USE_VENDOR_PRIMITIVES + + + // + // Generic Math Primitives + // +`define CRYPTECH_PRIMITIVE_MAC16_GENERIC mac16_generic +`define CRYPTECH_PRIMITIVE_ADD32_GENERIC adder32_generic +`define CRYPTECH_PRIMITIVE_ADD47_GENERIC adder47_generic +`define CRYPTECH_PRIMITIVE_SUB32_GENERIC subtractor32_generic + + + // + // Xilinx Math Primitives for Artix-7 Family + // +`define CRYPTECH_PRIMITIVE_MAC16_VENDOR mac16_artix7 +`define CRYPTECH_PRIMITIVE_ADD32_VENDOR adder32_artix7 +`define CRYPTECH_PRIMITIVE_ADD47_VENDOR adder47_artix7 +`define CRYPTECH_PRIMITIVE_SUB32_VENDOR subtractor32_artix7 + + + +/* map CRYPTECH_PRIMITIVE_* to either CRYPTECH_PRIMITIVE_*_GENERIC or + CRYPTECH_PRIMITIVE_*_VENDOR based on the value of the earlier generic/vendor + switch. + */ + +`ifndef CRYPTECH_USE_VENDOR_PRIMITIVES + + // generic primitives +`define CRYPTECH_PRIMITIVE_MAC16 `CRYPTECH_PRIMITIVE_MAC16_GENERIC +`define CRYPTECH_PRIMITIVE_ADD32 `CRYPTECH_PRIMITIVE_ADD32_GENERIC +`define CRYPTECH_PRIMITIVE_ADD47 `CRYPTECH_PRIMITIVE_ADD47_GENERIC +`define CRYPTECH_PRIMITIVE_SUB32 `CRYPTECH_PRIMITIVE_SUB32_GENERIC + +`else + + // vendor-specific primitives +`define CRYPTECH_PRIMITIVE_MAC16 `CRYPTECH_PRIMITIVE_MAC16_VENDOR +`define CRYPTECH_PRIMITIVE_ADD47 `CRYPTECH_PRIMITIVE_ADD47_VENDOR +`define CRYPTECH_PRIMITIVE_ADD32 `CRYPTECH_PRIMITIVE_ADD32_VENDOR +`define CRYPTECH_PRIMITIVE_SUB32 `CRYPTECH_PRIMITIVE_SUB32_VENDOR + +`endif + + +//------------------------------------------------------------------------------ +// End-of-File +//------------------------------------------------------------------------------ |