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Acorn BBC Micro on an Altera DE1 Cyclone II FPGA board ------------------------------------------------------ http://www.mike-stirling.com/retro-fpga/bbc-micro-on-an-fpga/ (C) 2011-2016 Mike Stirling Uses components from: T65 implementation from http://www.fpgaarcade.com/resources/T65_v302.zip (bug fixes from PACE dev) M6522 implementation from FPGA arcade VIC20 design. Various bug fixes added locally. SN76489 implementation by Arnim Laeuger and obtained from FPGA arcade -- BBC Micro for Altera DE1 -- -- Copyright (c) 2011 Mike Stirling -- -- All rights reserved -- -- Redistribution and use in source and synthezised 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 synthesized 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 author nor the names of other contributors may -- be used to endorse or promote products derived from this software without -- specific prior written agreement from the author. -- -- * License is granted for non-commercial use only. A fee may not be charged -- for redistributions as source code or in synthesized/hardware form without -- specific prior written agreement from the author. -- -- 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 AUTHOR 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.