Konami developed a graphic chip called 007121. This was used in several games. This project aims to accurately replicate those games in modern electronics, namely FPGA systems.
| Name | JT Core | Main CPU | Sound CPU | K007121 units | Audio |
|---|---|---|---|---|---|
| Contra | contra | HD63C09EP | 68B09EP | x2 | YM2151 |
| Combat School | comsc | 6309 | Z80 | x2 | YM2203 + UPD7759 |
| Haunted Castle | KONAMI-2 | Z80 | x2 | YM3812 + K051649 | |
| Fast Lane | flane | 6309 | - | x1 + K051733 | K007232 x 2 |
| MX5000 | mx5k | 6309 | Z80 | x2 | YM2151 + K007232 |
| Labyrinth Runner | labrun | 6309 | - | x1 + K051733 | YM2203 x 2 |
MX5000 uses two K007121 but the second one is connected in such a way that it only serves to extract the 4-bit palette for the current pixel.
Games using the KONAMI-2 CPU:
- 88 Games
- Aliens
- Ajax
- Block Hole
- Chequered Flag
- Crime Fighters
- Escape Kids
- Gang Busters
- Haunted Castle
- Parodius
- Super Contra
- Surprise Attack
- Roller Games
- The Simpsons
- Thunder Cross
- Vendetta
Binary RBF files for MiST, MiSTer and SiDi will be provided for in https://github.com/jotego/jtbin
You need to have Quartus installed in a linux machine. Clone this repository and
its submodules following standard git instructions. Go to the root folder and
type source setprj.sh. Now you can compile the core with jtcore contra -mist
Use -mister or -sidi if appropriate.
Also check the instructions in modules/jtframe/doc/compilation.md
Use the mra file in rom/mra for MiSTer. For MiST/SiDi, convert the mra to a rom file using the mra tool.
| Name | Purpose | Author | URL |
|---|---|---|---|
| JT7759 | ADPCM sound | jotego | https://github.com/jotego/jt7759 |
| JT12 | YM2203 sound | jotego | https://github.com/jotego/jt12 |
| JT51 | YM2151 sound | jotego | https://github.com/jotego/jt51 |
| JTFRAME | FPGA framework | jotego | https://github.com/jotego/jtframe |
Furrtek made a full RE of this chip here
The internal register mapping has R/W access from the CPU. If the row scroll registers are prevented from reading, Combat School boots up with an error on "zure RAM", note that "zure" is Japanese for scroll.
| Address | Purpose |
|---|---|
| 20-3F | zure RAM - row scroll |
| 40-5F | text tilemap selection (over scroll tilemap) |
| 2000-2FFF | VRAM |
| 3000-3FFF | OBJ RAM |
Attribute byte
| Bits | Usage | Condition |
|---|---|---|
| 2:0 | Palette | |
| 3 | Palette MSB | MMR[6][0] high |
| 6:3 | Bank bits 4:1 | Enabled by MMR[4] and MMR[5] |
| 7 | Bank bit 0 |
| Pin Name | Number | I/O | Usage |
|---|---|---|---|
| H2 | 68 | O | 0=output ROM addr is for tilemaps, 1=objects |
| A13 | 109 | I | 0=internal config registers, 1=VRAM |
| A12 | 52 | I | 0=tilemaps, 1=objects |
| NXCS | 63 | I | chip select |
| COA6 | 81 | O | palette RAM address 6 |
| COA5 | 20 | O | palette RAM address 5 |
| COA4 | 80 | O | palette RAM address 4 |
| COA3 | 79 | O | palette RAM address 3 |
| COA2 | 18 | O | palette RAM address 2 |
| COA1 | 16 | O | palette RAM address 1 |
| COA0 | 17 | O | palette RAM address 0 |
| CK24 | 1 | I | 24MHz input clock |
| CK2 | 4 | O | CK24/4 (6MHz output clock) |
| NE | 65 | O | E signal for M6809 |
| NQ | 66 | O | Q signal for M6809 |
There are 8 programmable registers, most of them are 8-bit long, some have unused bits which do not connect to any physical register. Register cannot be read back.
The jotego nickname had already been used by other people so on some networks you will find me as topapate.
Contact via:
You can show your appreciation through
- Github:
- Patreon: https://patreon.com/topapate
- Paypal: https://paypal.me/topapate
80's spaceman Adam Leslie Adam Small Adam Zorzin Adrian Labastida Adrian Nabarro Alan Shurvinton Alexander Lash Alexander Upton Alfonso Clemente Alvaro Paniagua Andrea Chiavazza Andreas Micklei Andrew Boudreau Andrew Hannan Andrew P Gibson Andrew Schmidt Angelfred Angelo Kanaris Anthony Monaco Antoine Mariette Anton Gale Antwon Aquijacks (Flashjacks Arend Pronk Arthur Blough Arthur Fung BRCDEvg Banane Bear S Ben Toman Bitmap Bureau Bitmaps Retro Bliz 452 Brandon Peach Brandon Smith Brandon Thomas Brent Fraser Brian Peek Brian Plummer Bruno M C Cameron Tinker Carrboroman Cesar Sandoval Charles Chris Chung Chris Mzhickteno Chris Tuckwell Chris W Miller Chris smith Christian Bailey Clinton Cronin Cobra Clips Colin Colehour Colt83 DARK WEB DANGer Dan Doyle Daniel Daniel Casadevall Daniel Fowler Daniel Page Daniel Tibi Daniel Zetterman Darren Wootton Dasutin David Drury David Filskov David Fleetwood David Jones Denis Brækhus Diana Carolina Didier Touron Dimitris Zongas Dr Catjail DrMnike Dre137 Eren Kotan Eric J Faulkes Eric Schlappi Federico Five Year Guy Florian Raoult Focux GeorgeSpinner Gluthecat GohanX Gonzalo Lopez Goolio Greg Gregory Val HFSPlay Handheld Obsession Henry Hugo Pinto Ibrahim ItsBobDudes JOSE LUIS JR Jack Sammons Jacob Hoffman Jacob Lawter James B Ross James Dingo James Kilgore Javier Rodas Jeff Roberts Jeremy Hasse Jerry Suggs Jesse Clark Jim Knowler JimLahey Jimmy Dozier Jockel Johan Smolinski John Figueroa John Fletcher John Hood John Silva John T. Keen John Wilson Jonah Phillips Jonathan Brochu Jonathan Loor Jonathan Tuttle Joost Peters Jootec from Jorge Jork Sonkinfield Joseph Kulinski Joseph Milazzo Joseph Mogavero Josh Emery Josh Mayer Josiah Wilson Justin D'Arcangelo Kai Cherry Keith Gordon Kem Yos Ken Scott Kevin Gudgeirsson KnC KrzysFR L.Rapter LFT Lakeside Laurent Cooper Lee Grocott Lee Osborne Luc JOLY Luis F Giron MaDDoG Mack H Madox Magnus Kvevlander Manuel Astudillo Marco Emparan Mark Baffa Mark Davidson MarthSR Martin Ansin Matheus Matt Elder Matt Evans Matt Lichtenberg Matt McCarthy Matt ODonnell Matthew Humphrey Matthew Woodford Me getting MechaGG Megan Alnico Michael Anderson Michael Berger Michael C Michael Deshaies Michael Rea Michael_DKT Mick Stone Mike Holzinger Mike Jegenjan Mike Olson Mike Parks Mottzilla NINE Nailbomb Narugawa Neil St Clair NerdyNester Nick Delia Nick G Nico Stamp Nicolas Hurtado Niko NonstopXiaowei Norman Wehrle OopsAllBerrys Oriez Oskar Sigvardsson Parker Blackman Pascal Courtois Patrick Roman Paul Cunningham Paul Hoggett Paul M Paulo M. Paweł Mandes PeFClic Per Ole Philip Lai Philip Lawson Piafoman Pierre-Emmanuel M. Pontus Nyholm Rachael Netz Rachel Schaeffer RayGun RetroRGB Richard Eng Richard Murillo Richard Simpson Rick Ochoa Robert Daniel Romain Dijoux Ronald Dean Ronan Amicel Roro Ryan Ryan O'Malley Sam Hall Samuel Warner Schnookums Shannon King Spank Minister SteelRush Stefan Krueger Stephen R Price Steve Ikeguchi Steve Skrzyniarz Steve Tack Steven Hansen Stuart Morton SuperBabyHix Syrotuck Taehyun Kim Taiki Hosoda Tales Dilli Tarnjeet Bhachu Tatton Partington TealShark Terse The Collector The Video TheLevelOfDetail . Thomas Attanasio Thomas Capetanakis Thomas Irwin Timothy Bearup Tobias Dossin Tom Milner Travis Brown Trifle Turboman UK Ty B VickiViperZabel Victor Bly Victor Fontanez Will Abbott William Clemens Yunus Soğukkanlı Zach Marquette Zoltan Kovacs albertprime alejandro carlos angel_killah arcadebros benedict lindley blackwine brian burney cbab chauviere benjamin datajerk deathwombat derFunkenstein gunmakuma joshewah777 kamel rasennadja kccheng kernelchagi liphy meng po natalie nonamebear qzxcvbn retrod00d rsn8887 slayer213 taal.M tonitellezb troy coberly yoaarond