| 1 |
2 |
atypic |
--------------------------------------------------------------------------------
|
| 2 |
|
|
-- This file is owned and controlled by Xilinx and must be used --
|
| 3 |
|
|
-- solely for design, simulation, implementation and creation of --
|
| 4 |
|
|
-- design files limited to Xilinx devices or technologies. Use --
|
| 5 |
|
|
-- with non-Xilinx devices or technologies is expressly prohibited --
|
| 6 |
|
|
-- and immediately terminates your license. --
|
| 7 |
|
|
-- --
|
| 8 |
|
|
-- XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" --
|
| 9 |
|
|
-- SOLELY FOR USE IN DEVELOPING PROGRAMS AND SOLUTIONS FOR --
|
| 10 |
|
|
-- XILINX DEVICES. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION --
|
| 11 |
|
|
-- AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION --
|
| 12 |
|
|
-- OR STANDARD, XILINX IS MAKING NO REPRESENTATION THAT THIS --
|
| 13 |
|
|
-- IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT, --
|
| 14 |
|
|
-- AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE --
|
| 15 |
|
|
-- FOR YOUR IMPLEMENTATION. XILINX EXPRESSLY DISCLAIMS ANY --
|
| 16 |
|
|
-- WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE --
|
| 17 |
|
|
-- IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR --
|
| 18 |
|
|
-- REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF --
|
| 19 |
|
|
-- INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS --
|
| 20 |
|
|
-- FOR A PARTICULAR PURPOSE. --
|
| 21 |
|
|
-- --
|
| 22 |
|
|
-- Xilinx products are not intended for use in life support --
|
| 23 |
|
|
-- appliances, devices, or systems. Use in such applications are --
|
| 24 |
|
|
-- expressly prohibited. --
|
| 25 |
|
|
-- --
|
| 26 |
|
|
-- (c) Copyright 1995-2007 Xilinx, Inc. --
|
| 27 |
|
|
-- All rights reserved. --
|
| 28 |
|
|
--------------------------------------------------------------------------------
|
| 29 |
|
|
-- You must compile the wrapper file fpu_adder.vhd when simulating
|
| 30 |
|
|
-- the core, fpu_adder. When compiling the wrapper file, be sure to
|
| 31 |
|
|
-- reference the XilinxCoreLib VHDL simulation library. For detailed
|
| 32 |
|
|
-- instructions, please refer to the "CORE Generator Help".
|
| 33 |
|
|
|
| 34 |
|
|
-- The synthesis directives "translate_off/translate_on" specified
|
| 35 |
|
|
-- below are supported by Xilinx, Mentor Graphics and Synplicity
|
| 36 |
|
|
-- synthesis tools. Ensure they are correct for your synthesis tool(s).
|
| 37 |
|
|
|
| 38 |
|
|
LIBRARY ieee;
|
| 39 |
|
|
USE ieee.std_logic_1164.ALL;
|
| 40 |
|
|
-- synthesis translate_off
|
| 41 |
|
|
Library XilinxCoreLib;
|
| 42 |
|
|
-- synthesis translate_on
|
| 43 |
|
|
ENTITY fpu_adder IS
|
| 44 |
|
|
port (
|
| 45 |
|
|
a: IN std_logic_VECTOR(25 downto 0);
|
| 46 |
|
|
b: IN std_logic_VECTOR(25 downto 0);
|
| 47 |
|
|
clk: IN std_logic;
|
| 48 |
|
|
result: OUT std_logic_VECTOR(25 downto 0);
|
| 49 |
|
|
underflow: OUT std_logic;
|
| 50 |
|
|
overflow: OUT std_logic;
|
| 51 |
|
|
invalid_op: OUT std_logic);
|
| 52 |
|
|
END fpu_adder;
|
| 53 |
|
|
|
| 54 |
|
|
ARCHITECTURE fpu_adder_a OF fpu_adder IS
|
| 55 |
|
|
-- synthesis translate_off
|
| 56 |
|
|
component wrapped_fpu_adder
|
| 57 |
|
|
port (
|
| 58 |
|
|
a: IN std_logic_VECTOR(25 downto 0);
|
| 59 |
|
|
b: IN std_logic_VECTOR(25 downto 0);
|
| 60 |
|
|
clk: IN std_logic;
|
| 61 |
|
|
result: OUT std_logic_VECTOR(25 downto 0);
|
| 62 |
|
|
underflow: OUT std_logic;
|
| 63 |
|
|
overflow: OUT std_logic;
|
| 64 |
|
|
invalid_op: OUT std_logic);
|
| 65 |
|
|
end component;
|
| 66 |
|
|
|
| 67 |
|
|
-- Configuration specification
|
| 68 |
|
|
for all : wrapped_fpu_adder use entity XilinxCoreLib.floating_point_v3_0(behavioral)
|
| 69 |
|
|
generic map(
|
| 70 |
|
|
c_has_b_nd => 0,
|
| 71 |
|
|
c_speed => 2,
|
| 72 |
|
|
c_has_sclr => 0,
|
| 73 |
|
|
c_has_a_rfd => 0,
|
| 74 |
|
|
c_b_fraction_width => 20,
|
| 75 |
|
|
c_has_operation_nd => 0,
|
| 76 |
|
|
c_family => "spartan3",
|
| 77 |
|
|
c_has_exception => 0,
|
| 78 |
|
|
c_a_fraction_width => 20,
|
| 79 |
|
|
c_has_flt_to_fix => 0,
|
| 80 |
|
|
c_has_flt_to_flt => 0,
|
| 81 |
|
|
c_has_fix_to_flt => 0,
|
| 82 |
|
|
c_has_invalid_op => 1,
|
| 83 |
|
|
c_latency => 0,
|
| 84 |
|
|
c_has_divide_by_zero => 0,
|
| 85 |
|
|
c_has_overflow => 1,
|
| 86 |
|
|
c_mult_usage => 0,
|
| 87 |
|
|
c_has_rdy => 0,
|
| 88 |
|
|
c_result_fraction_width => 20,
|
| 89 |
|
|
c_has_divide => 0,
|
| 90 |
|
|
c_has_inexact => 0,
|
| 91 |
|
|
c_has_underflow => 1,
|
| 92 |
|
|
c_has_sqrt => 0,
|
| 93 |
|
|
c_has_add => 1,
|
| 94 |
|
|
c_has_status => 0,
|
| 95 |
|
|
c_has_a_negate => 0,
|
| 96 |
|
|
c_optimization => 1,
|
| 97 |
|
|
c_has_a_nd => 0,
|
| 98 |
|
|
c_has_aclr => 0,
|
| 99 |
|
|
c_has_b_negate => 0,
|
| 100 |
|
|
c_has_subtract => 0,
|
| 101 |
|
|
c_compare_operation => 8,
|
| 102 |
|
|
c_rate => 1,
|
| 103 |
|
|
c_has_compare => 0,
|
| 104 |
|
|
c_has_operation_rfd => 0,
|
| 105 |
|
|
c_has_b_rfd => 0,
|
| 106 |
|
|
c_result_width => 26,
|
| 107 |
|
|
c_b_width => 26,
|
| 108 |
|
|
c_status_early => 0,
|
| 109 |
|
|
c_a_width => 26,
|
| 110 |
|
|
c_has_cts => 0,
|
| 111 |
|
|
c_has_ce => 0,
|
| 112 |
|
|
c_has_multiply => 0);
|
| 113 |
|
|
-- synthesis translate_on
|
| 114 |
|
|
BEGIN
|
| 115 |
|
|
-- synthesis translate_off
|
| 116 |
|
|
U0 : wrapped_fpu_adder
|
| 117 |
|
|
port map (
|
| 118 |
|
|
a => a,
|
| 119 |
|
|
b => b,
|
| 120 |
|
|
clk => clk,
|
| 121 |
|
|
result => result,
|
| 122 |
|
|
underflow => underflow,
|
| 123 |
|
|
overflow => overflow,
|
| 124 |
|
|
invalid_op => invalid_op);
|
| 125 |
|
|
-- synthesis translate_on
|
| 126 |
|
|
|
| 127 |
|
|
END fpu_adder_a;
|
| 128 |
|
|
|