Sinclair ZX Spectrum 48k and 128k on an Altera DE1 FPGA board
VHDL C C++ Other
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T80 Added 128K paging register and rom selection. Now running as a 128K m… Aug 27, 2011
YM2149 Split paging register back out of ULA - it's not in there in the real… Aug 27, 2011
src Cleaned up zxloader source Jan 13, 2016
CII_Starter_pin_assignments.csv New VHDL top level with SRAM interface logic from the BBC. Eliminates… Aug 27, 2011
README Added readme Jan 13, 2016
clocks.vhd Updated license text Sep 1, 2011
debugger.vhd Updated license text Sep 1, 2011
i2c_loader.vhd Updated license text Sep 1, 2011
i2c_loader_tb.vhd Added license text Nov 21, 2010
i2s_intf.vhd Updated license text Sep 1, 2011
i2s_intf_tb.vhd Added license text Nov 21, 2010
keyboard.vhd Updated license text Sep 1, 2011
pll_main.ppf Initial commit after starting new standalone repo. This is a working … Jul 18, 2010
pll_main.qip Initial commit after starting new standalone repo. This is a working … Jul 18, 2010
pll_main.vhd Initial commit after starting new standalone repo. This is a working … Jul 18, 2010
ps2_intf.vhd Updated license text Sep 1, 2011
ps2_intf_tb.vhd Added license text Nov 21, 2010
seg7.vhd Updated license text Sep 1, 2011
spectrum.cdf Removed obsolete z80_tests Nov 21, 2010
spectrum.pin New VHDL top level with SRAM interface logic from the BBC. Eliminates… Aug 27, 2011
spectrum.qpf Initial commit after starting new standalone repo. This is a working … Jul 18, 2010
spectrum.qsf Added ZXMMC support to work with +3e ROMs Aug 29, 2011
spectrum_de1.vhd Updated license text Sep 1, 2011
spi.vhd Added license text Nov 21, 2010
ula_port.vhd Updated license text Sep 1, 2011
video.vhd Updated license text Sep 1, 2011
video_tb.vhd Added license text Nov 21, 2010
zxmmc.vhd Updated license text Sep 1, 2011

README

Sinclair ZX Spectrum on an Altera DE1 Cyclone II FPGA board
-----------------------------------------------------------

http://www.mike-stirling.com/retro-fpga/zx-spectrum-on-an-fpga/
(C) 2009-2016 Mike Stirling

Uses components from:

T80 Z80 core Copyright (c) 2001-2002 Daniel Wallner (jesus@opencores.org)
YM2149 Copyright (c) MikeJ - Jan 2005

-- ZX Spectrum for Altera DE1
--
-- Copyright (c) 2009-2011 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.