1 files changed, 0 insertions, 94 deletions
diff --git a/rtl/lowlevel/artix7/subtractor32_artix7.v b/rtl/lowlevel/artix7/subtractor32_artix7.v
deleted file mode 100644
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--- a/rtl/lowlevel/artix7/subtractor32_artix7.v
+++ /dev/null
@@ -1,94 +0,0 @@
-//------------------------------------------------------------------------------
-//
-// subtractor32_artix7.v
-// -----------------------------------------------------------------------------
-// Hardware (Artix-7 DSP48E1) 32-bit subtractor.
-//
-// 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 subtractor32_artix7
-	(
-		input					clk,
-		input		[31: 0]	a,
-		input		[31: 0]	b,
-		output	[31: 0]	d,
-		input					b_in,
-		output				b_out	
-	);
-
-		//
-		// Lower and higher parts of operand
-		//
-	wire	[17: 0]	bl = b[17: 0];
-	wire	[13: 0]	bh = b[31:18];
-	
-		//
-		// DSP48E1 Slice
-		//
-		
-		/* Operation Mode */
-	wire	[ 3: 0]	dsp48e1_alumode	= 4'b0011;
-	wire	[ 6: 0]	dsp48e1_opmode		= 7'b0110011;
-
-		/* Internal Product */	
-	wire	[47: 0]	p_int;
-	
-	dsp48e1_wrapper dsp_subtractor
-	(
-		.clk			(clk),
-	
-		.ce			(1'b1),
-		
-		.carry		(b_in),
-		
-		.alumode		(dsp48e1_alumode),
-		.opmode		(dsp48e1_opmode),
-		
-		.a				({{16{1'b0}}, bh}),
-		.b				(bl),
-		.c				({{16{1'b0}}, a}),
-		
-		.p				(p_int)
-	);
-
-		//
-		// Output Mapping
-		//
-	assign d 		= p_int[31: 0];
-	assign b_out	= p_int[32];
-
-endmodule
-
-//------------------------------------------------------------------------------
-// End-of-File
-//------------------------------------------------------------------------------