NB: This repositorty has been consolidated into JTGNG
JTDD FPGA Arcade Hardware Jose Tejada (@topapate)
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Yes, you always wanted to have a Double Dragon arcade board at home. First you couldn't get it because your parents somehow did not understand you. Then you grow up and your wife doesn't understand you either. Don't worry, MiST(er) is here to the rescue.
What you get with this is an extremely accurate (allegedly 100% accurate) clone of the original hardware. Bus timing and minor details have been observed and you should notice quite a different feeling when comparing the game to an emulator.
I hope you will have as much fun with it as I had it while making it!
Compatible Hardware
This repository contains hardware designed for FPGA compatible with the following systems:
- Renegade
- Double Dragon 1 & 2
Troubleshooting
Note that Double Dragon 1 and 2 are 57Hz games. Some screens do not support this refresh rate. ADPCM sounds with less treble than in MAME. Upon comparison with the arcade PCB, I think this is correct.
Flip mode is not supported. Because this is a horizontal game and cocktail tables are not popular anymore, I don't plan to implement the flip mode.
- If the game doesn't start up after loading the ROM press F3 (reset) or select reset from the OSD menu
- Please post any issues to the github page. Click on the issues tab.
https://github.com/jotego/jtdd
Schematics
The KiCAD schematics for Renegade developed by us are in the kunio core folder. A link to a PDF version is available below.
Conversion Accuracy
The HDL code respects all interaction between the different hardware subsystems. When the original signal names are used, those are in capitals. The handshaking between the main CPU and the MCU follows the original design as well. The M6801 core used for the MCU may or may not be cycle accurate. I have not checked it yet.
Although some dual port memories have been used, they can actually be replaced by single port memories with none or minimum changes to the HDL. I moved to dual port memories while I was debugging some glitches, which eventually were not related to that, and I just didn't change them back. There is no bus arbitrion related to the original memories as bus access is just time interleaved without handshaking in the original design.
The schematics of the original can be found in the doc folder.
Antialiasing Filters
Double Dragon 1 has no antialiasing whatsoever for ADPCM audio, as can be seen in the schematics.
I do not have the schematics of DD2, so I do not know what filter it may have had, if any. I have used a filter at 2xFs for it, which will preserve most of the aliasing and just removed very high frequencies.
Modules
The FPGA clone uses the following modules:
JT51: For YM2151 sound synthesis. From the same author. JT5205: For MSM5205 ADPCM sound synthesis. From the same author. JT6295: For MSM6295 ADPCM sound synthesis. From the same author. JTFRAME: A common framework for MiST arcades. From the same author. MC6809: from Greg Miller, slightly modified. Part of JTFRAME, the original can be found in github MC6801: By Dukov, slightly modified. It is part of JTFRAME but the original can be found at https://opencores.org/projects/mc6803
When populating the git, remember to use:
git submodule init git submodule update
To get the needed modules. If you update git, you may need to manually update the submodules commits like this:
git pull git submodule update
Compilation
Refer to JTFRAME for compilation instructions.
Keyboard
On MiSTer keyboard control is configured through the OSD.
For MiST and MiSTer: games can be controlled with both game pads and keyboard. The keyboard follows the same layout as MAME's default.
F3 Game reset
P Pause
1,2 1P, 2P start buttons
5,6 Left and right coin inputs
cursors 1P direction
CTRL 1P button 1
ALT 1P button 2
space 1P button 3
R,F,G,D 2P direction
Q,S,A 2P buttons 3,2 and 1
F7 Turn character layer on/off
F8 Turn second background layer on/off
F9 Turn object (sprite) layer on/off
ROM Generation
The rom folder contains the batch files for both linux and windows to generate the ROM file starting from a MAME set. Follow the instructions of that file. There is also a MRA file to use directly in MiSTer with the MAME zipped ROM.
SD Card
For MiST copy the file core.rbf to the SD card at the root directory. Copy also the rom you have generated with the name JTDD.rom. It will get loaded at start.
Extras
You can press F12 to bring the OSD menu up. You can turn off music, or sound effects with it. By default, a screen filter makes the screen look closer to an old tube monitor. If you turn it off you will get sharp pixels. Note that if you switch from sharp to soft pixels you will need a couple of seconds to get your eyes used as the brain initially perceives this as an out of focus image compared to the old one.
Credits
Jose Tejada Gomez. Twitter @topapate Project is hosted in http://www.github.com/jotego/jtdd License: GPL3, you are obligued to publish your code if you use mine
Special thanks to Greg Miller, Bruno Silva and to:
Adrian Fabio Leslie Law RetroDriven
AkaiFutari Fay Dek Lewis Waddington RetroShop.pt
Alan Steremberg Filip Kindt loloC2C Richard Gregory
albconde FRANCISCO JAVIER FUENTES MORENO Luis F Giron Rob Young
Alex Frank Wolf Manuel Roberto Abdelkader Martínez Pérez
Alex Hoerr Fred Fryolator Manuel Antoni Roberto Lari
Allen Tipper Frédéric Mahé Manuel Astudillo Roland
Amineko Stone Fredrik Berglind Manuel Fernández Rolf-Karsten Bråten
Amosfear FULLSET Manuelfx Roman Buser
Andrew Boudreau Funkycochise Marco Tavian Ryan Fig
Andrew Francomb furrtek Mario Salvini RyLe
Andrew Moore Gary Shepherdson Mark Paterson Rysha
Andylithia Geert Oost Mary Marshall Salvador Perugorria Lorente
Andyways Geoff Connell Matt Charlesworth Samuli Tuomola
Anthony Bolek Gonzalo López Matt Elder sawf01
Aqy Gregory Hogan Matteo Parolin Scralings
Arcade Express Guillermo Tunon Matthew Humphrey Sebastien COCHET
Arnaud Jacquemin Guinness matthew tecchio Sembiance
AtariSTFan Henry R Matthew Young Shane Lynch
Bibiabho Astoporri Herbert Krammer mattyhochs Shane Yates
Blue1597 Humanoide70 McNathan Shawn Wheatley
Brett McAlpine Ishmael Hallin Michael Scanlon Shogun7
Brian Sallee Jacques Henri Michael Stegen SJohansson
Bruno Silva James DeRose Mick Stone skywalky
Bryan Siemon James Williams Miguel Angel Rodriguez Jodar SmokeMonster
Buster D JD Mikael Tillander SteelRush
Carl Hagström Jeff Gerstmann Mike Holzinger Stefan Nordkvist
Carlos Del Alamo Jeff O'Meara Mister JBAM Stephen Marshall
Charles Sagett Jeremy Glass MrX-8B Stephen Pearce
Chris Jardine Jeremy Hopkins Neil Maguire Steven
Chris Mawman Jeremy Kaiman Nelson Jr Steven Wilson
Christian Bailey Jérôme Moreau Nelson Machado Stuart Fisk
Christopher Harvey Jeruro Niall O'Higgins Suvodip Mitra
Christopher rumford Jesus Garcia Nicolas Hamel Sweetlilmre
Christopher Tuckwell Jo Tomiyori Obiwantje Thomas Davies
Dana Rich Joe Kalwitz Oliver Jaksch Thomas Tahsin-Bey
Daniel Bauza Johannes Reß Oliver Seitz Toby Boreham
Daniel Casadevall John Kelley Oliver Wndmth Tony Peters
Daniel Hochman John Klimek Oscar Jacobsson type78
DarkStar7 John Perry Oscar Laguna Garcia UKShark
Darren Newman John Stringer Outchocinco Ultrarobotninja
David Filskov John Williams Owlnonymous Víctor Gomariz Ladrón de Guevara
David Taylor Jon Taylor Paul Herbert Videodr0me
Don Gafford Jootec from Mars Paulie B Violeta Martin Fernandez
Duane Hembrick Jorge Galán Phillip McMahon Visa-Valtteri Pimiä
Dustin Gray Jorge Slowfret Popov vladimir
Dyllon Moseychuck Juan Diego Sánchez Noguera Porkchop Express Vorvek
Ed Balan Juan Manuel Sandoval Jr PsyFX Wiedo Belochkin
Eduard Mateo Keith Kelly QcRetro William Clemens
EDUARDO ARANCIBIA PASTOR Ken ottosson Rafa Davila wvc
emceebois Kevin Bidwell Raziel Xtro
Eoin Gibney Kyle Good remowilliams Xzarian
Evan Clarke Kyle Troutman Renan Eler Zimmermann
Supporters for Renegade development:
8bits4ever Aaron Ray Adam Leslie Adam Small
Adrian Labastida Alan Shurvinton Alda Alesio Alex Mandic
Alexander Facchini Alexander Lash Alexander Upton Alfonso Clemente
Allen Tipper Allister Fiend Alvaro Paniagua Andrea Chiavazza
Andreas Micklei Andrew Boudreau Andrew Hannan Andrew P Gibson
Andrew Schmidt Angel Aguinaga Angelfred Angelo Kanaris
Anselmo Moreno Anthony Monaco Anton Gale Aquijacks (Flashjacks
Arend Pronk Arkadiusz Arthur Fung Aurich Lawson
BRCDEvg Banane Bear S Ben Toman
BigRedPimp Bit2018 Bitmap Bureau Bitmaps Retro
Bliz 452 Blue Abs Boris Pruessmann Brandon Lennie
Brandon Peach Brandon Thomas Brent Fraser Brian Peek
Brian Shiver Bruce Fontaine Bruno Meyere Bruno Silva
Bryan Adams Bryan Evans Byshop303 Cameron Berkenpas
Cameron Tinker Carlos Bailleres Carlos Gruberman Carrboroman
Cesar Sandoval Charles Chris Chris Angelini
Chris Babishoff Chris D Chris Hoff Chris Maguire
Chris Mzhickteno Chris O'Neil Chris Petroni Chris Scully
Chris Tuckwell Chris W Miller Chris smith Christian Bailey
Christophe GARDES Clinton Cronin Cobra Clips Colin Colehour
Cory Stargel Dan Doyle Daniel . Daniel Casadevall
Daniel Dongil Daniel Fowler Daniel Page Daniele Pellegrini
Darren Attwood Darren Wootton Daryll David Dasutin
Dave Bennett Dave Douglas David Drury David Fleetwood
David Jones Denis Brækhus Denny Letourneau Diana Carolina
Didgeridoo Didier Touron Dimitris Zongas Dr Catjail
Dr. Octagon DrMnike Dre137 Edward Mallett
Emilio Fahr Enthropy Eren Kotan Eric
Eric Gutt Eric J Faulkes Eric Sorensen F34R
Fabio Michelin Fabricio Federico Five Year Guy
Florian Raoult Fred Rojas Gavin C GeorgeSpinner
Grant McNaught Greg Greg Sargent Gregory Val
Guillermo Tunon HamsoloPlays Handheld Obsession Harmonica
Henry Henry R Hentai Joe Hugo Pinto
ItsBobDudes JR JSwan Jack Sammons
Jacob Hoffman Jacob Lawter James Dingo James Kilgore
James Wilson Janne Heikkarainen Jason Baker Jerry Langwell
Jerry Suggs Jesse Clark Jim Knowler JimLahey
Jimmy Richards Jockel Joe Dinges Joe Giuliano
Joel Albino Johan Smolinski John Figueroa John Fletcher
John Silva John T. Keen John Wilson Johnny harvick
Jonah Phillips Jonathan Jonathan Tuttle JonathanValls
Joost Peters Jork Sonkinfield Jose Perez Josep Barbie
Joseph Kulinski Joseph Milazzo Joseph Mogavero Josh Mayer
Josh Yates-Walker Justin D'Arcangelo Kai Cherry Kai Luotojoki
Kaiosten Keith Gordon Ken B Ken Scott
Kevin Dayton Kike Alcor KnC Kricys
KrzysFR Kyle Pedersen L.Rapter Lakeside
Lee Grocott Lee Osborne Lucius Bono Luis F Giron
M Reznor MaDDoG Mack H Madox
Magnus Kvevlander Manuel Astudillo Marcello Medini Marco Emparan
Mark Floyd MarthSR Martin Ansin Matt Elder
Matt Evans Matt Hargett Matt Heinrich Matt McCarthy
Matt Postema Matthew Pollard Matthew Woodford MechaGG
MiSTer Retro Michael Anderson Michael Bariszlovits Michael Berger
Michael Eggers Michael Martin Michael Rea Michael_DKT
Mickaël Renou Mike Holzinger Mike Jegenjan Mike Olson
Mottzilla Nadir Shabazz Nailbomb Nando Iron
Nathan Souris Neil St Clair NerdyNester Nic Kaiman
Nick Delia Nick G Nick Gudauskas Nico Stamp
Niko NonstopXiaowei Noyman29 Obvious Fakename
OopsAllBerrys Oriez Oskar Sigvardsson Pablo Avila-Estevez
Patrick McCarron Patrick Roman Paul Paul Cunningham
Paul Hoggett Paulo M. Paweł Mandes PeFClic
Pedro Santiago Per Ole Peter Mehes Philip Lai
Philip Lawson Pierre-Emmanuel Martin ProfessorAnon R D
R Omar Leal Rachael Netz Rachel Schaeffer Ralph Barbagallo
Ramon Gamaliel RandomRetro Raphael Melgar Raul3D
RayGun RetroRGB Rex Kung Rex Willer
Richard Eng Richard Murillo Richard Simpson Riyad Twair
Robert Daniel Robert Hayes Romain Dijoux Romier Silvera
Ronald Dean Ronan Amicel Ruben Ryan
Ryan Clark Ryan O'Malley SIDKidd64 Saiyan
Sam Hall Samuel Pizarro Samuel Warner Sang Hee
Sascha Zupanek Schnookums Ser Erris Seth Wickline
Shad Uttam Shannon King Sherwood Hachtman Sigmund68k
Skeletex Spank Minister Stadium ARTs SteelRush
Stefan Krueger Stephen R Price Steve Lin Steve Skrzyniarz
Steve Tack Steven A Steven Hansen Stuart Morton
Sunder Raj SuperBabyHix Synbios Taehyun Kim
Tales Dilli Terse The Collector The Video
Thomas Attanasio Thomas Irwin Thorias Timothy Bearup
Tobias Dossin Tom Milner Tony Shong Topher Campbell
Trifle Two Bards Ty B VickiViperZabel
Victor Bly Victor Fontanez Weston Boldt Will Abbott
William Clemens William Tryon Yunus Soğukkanlı Zane
Zoltan Kovacs albertprime alejandro carlos amdrgn
angel_killah arcadebros benedict lindley blackwine
brian burney cbab chauviere benjamin circletheory
dARKrEIGn dECKARD datajerk deathr0w
deathwombat gunmakuma jbrlll jim br
jonathan capparelli kamel rasennadja kccheng kernelchagi
kerobaros keropi liphy mattcurrie
meng po metal ojwales pacoarcade
raoulvp retrod00d rsn8887 slayer213
sourdille tim rogers tonitellezb troy coberly
turbochop3300 twilitezoner type78 vampsthevampyre
xqwarzia yoaarond Δlain
Thank you all!