-- Author : Julian Andres Guarin Reyes.
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-- Author : Julian Andres Guarin Reyes.
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-- Project : JART, Just Another Ray Tracer.
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-- Project : JART, Just Another Ray Tracer.
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-- email : jguarin2002 at gmail.com, j.guarin at javeriana.edu.co
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-- This code was entirely written by Julian Andres Guarin Reyes.
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-- This code was entirely written by Julian Andres Guarin Reyes.
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-- The following code is licensed under GNU Public License
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-- The following code is licensed under GNU Public License
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-- http://www.gnu.org/licenses/gpl-3.0.txt.
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-- http://www.gnu.org/licenses/gpl-3.0.txt.
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-- This file is part of JART (Just Another Ray Tracer).
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-- This file is part of JART (Just Another Ray Tracer).
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-- JART (Just Another Ray Tracer) is free software: you can redistribute it and/or modify
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-- JART (Just Another Ray Tracer) is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation, either version 3 of the License, or
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-- the Free Software Foundation, either version 3 of the License, or
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-- (at your option) any later version.
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-- (at your option) any later version.
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-- JART (Just Another Ray Tracer) is distributed in the hope that it will be useful,
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-- JART (Just Another Ray Tracer) is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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-- GNU General Public License for more details.
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-- You should have received a copy of the GNU General Public License
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-- You should have received a copy of the GNU General Public License
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-- along with JART (Just Another Ray Tracer). If not, see <http://www.gnu.org/licenses/>.
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-- along with JART (Just Another Ray Tracer). If not, see <http://www.gnu.org/licenses/>.
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-- The following HDL is compares 2 32 bit numbers instantiating a comparator.
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-- The following HDL compares 2 32 bit numbers instantiating a comparator.
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-- vd is one operand and k the other.
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-- vd is one operand and k the other.
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-- i is the result 1 if vd is grater or equal than k.
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-- i is the result 1 if vd is grater or equal than k.
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-- The comparator instantiation is called intersection, cause this block function is to decide wheter or not a ray intersects a sphere making the vd and k,
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-- The comparator instantiation is called intersection, cause this block function is to decide wheter or not a ray intersects a sphere making the vd and k,
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-- comparison.
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-- comparison.
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library ieee;
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library ieee;
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use ieee.std_logic_1164.all;
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use ieee.std_logic_1164.all;
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entity bl01 is
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entity bl01 is
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port (
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port (
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vd: in std_logic_vector (31 downto 0);
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vd: in std_logic_vector (31 downto 0);
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k : in std_logic_vector (31 downto 0);
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k : in std_logic_vector (31 downto 0);
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i : out std_logic
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i : out std_logic
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);
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);
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end entity;
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end entity;
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architecture rtl of bl01 is
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architecture rtl of bl01 is
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component compare_A15_16 is
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component compare_A15_16 is
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port
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port
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(
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(
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dataa : in std_logic_vector(31 downto 0);
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dataa : in std_logic_vector(31 downto 0);
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datab : in std_logic_vector(31 downto 0);
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datab : in std_logic_vector(31 downto 0);
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AgeB : out std_logic
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AgeB : out std_logic
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);
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);
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end component;
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end component;
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begin
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begin
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intersection : compare_A15_16 port map ( dataa => vd, datab => k, AgeB => i);
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intersection : compare_A15_16 port map ( dataa => vd, datab => k, AgeB => i);
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end rtl;
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end rtl;
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