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62 lines
2.1 KiB
Verilog
62 lines
2.1 KiB
Verilog
// Copyright 2007 Altera Corporation. All rights reserved.
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// Altera products are protected under numerous U.S. and foreign patents,
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// maskwork rights, copyrights and other intellectual property laws.
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//
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// This reference design file, and your use thereof, is subject to and governed
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// by the terms and conditions of the applicable Altera Reference Design
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// License Agreement (either as signed by you or found at www.altera.com). By
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// using this reference design file, you indicate your acceptance of such terms
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// and conditions between you and Altera Corporation. In the event that you do
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// not agree with such terms and conditions, you may not use the reference
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// design file and please promptly destroy any copies you have made.
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//
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// This reference design file is being provided on an "as-is" basis and as an
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// accommodation and therefore all warranties, representations or guarantees of
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// any kind (whether express, implied or statutory) including, without
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// limitation, warranties of merchantability, non-infringement, or fitness for
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// a particular purpose, are specifically disclaimed. By making this reference
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// design file available, Altera expressly does not recommend, suggest or
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// require that this reference design file be used in combination with any
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// other product not provided by Altera.
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/////////////////////////////////////////////////////////////////////////////
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// baeckler - 03-29-2006
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// speed test bench for carry select adder
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module select_add_speed_test (clk,a,b,o);
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parameter BLOCK_SIZE = 14;
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parameter NUM_BLOCKS = 4;
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parameter DAT_WIDTH = BLOCK_SIZE * NUM_BLOCKS;
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parameter METHOD = 0;
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input clk;
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input [DAT_WIDTH-1:0] a,b;
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output [DAT_WIDTH:0] o;
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reg [DAT_WIDTH-1:0] ra,rb;
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reg [DAT_WIDTH:0] ro;
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always @(posedge clk) begin
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ra <= a;
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rb <= b;
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end
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generate
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if (METHOD == 0) begin
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car_select_add la (.clk(clk),.a(ra),.b(rb),.o(o));
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defparam la .BLOCK_SIZE = BLOCK_SIZE;
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defparam la .NUM_BLOCKS = NUM_BLOCKS;
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end
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else begin
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always @(posedge clk) begin
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ro <= ra + rb;
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end
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assign o = ro;
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end
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endgenerate
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endmodule
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