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diff --git a/rtl/lowlevel/artix7/mac16_artix7.v b/rtl/lowlevel/artix7/mac16_artix7.v
deleted file mode 100644
index 421e7ba..0000000
--- a/rtl/lowlevel/artix7/mac16_artix7.v
+++ /dev/null
@@ -1,90 +0,0 @@
-//------------------------------------------------------------------------------
-//
-// mac16_artix7.v
-// -----------------------------------------------------------------------------
-// Hardware (Artix-7 DSP48E1) 16-bit multiplier and 47-bit accumulator.
-//
-// 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 mac16_artix7
-  (
-   input 	  clk, // clock
-   input 	  clr, // clear accumulator (active-high)
-   input 	  ce, // enable clock (active-high)
-   input [15: 0]  a, // operand input
-   input [15: 0]  b, // operand input
-   output [46: 0] s			// sum output
-   );
-
-
-   //
-   // DSP48E1 Slice
-   //
-
-   /* Operation Mode */
-   wire [ 3: 0]   dsp48e1_alumode	= 4'b0000;
-   wire [ 6: 0]   dsp48e1_opmode		= {2'b01, clr, 4'b0101};
-
-   /* Internal Product */
-   wire [47: 0]   p_int;
-
-   dsp48e1_wrapper dsp_adder
-     (
-      .clk			(clk),
-
-      .ce			(ce),
-
-      .carry		(1'b0),
-
-      .alumode		(dsp48e1_alumode),
-      .opmode		(dsp48e1_opmode),
-
-      .a				({{14{1'b0}}, a}),
-      .b				({{ 2{1'b0}}, b}),
-      .c				({48{1'b0}}),
-
-      .p				(p_int)
-      );
-
-   //
-   // Output Mapping
-   //
-   assign s = p_int[46:0];
-
-
-endmodule
-
-
-//------------------------------------------------------------------------------
-// End-of-File
-//------------------------------------------------------------------------------