4-Player Controller Dock
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Does anyone have any insight into how the 4 player dock works? Does it contain special circuitry or can you simply wire 4 controllers directly into an NES?
Craig Damlo
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Re: 4-Player Controller Dock
I'm curious about this too, I'll look something up on the nes four score, my nes broke but im in the process of fixing it and I want to make a four score. The only 4 player nes game i know is nightmare on elm street
i hate how electronic part suppliers give you an option on their website to filter your searches so that you can find a certain part and no results come up!
Re: 4-Player Controller Dock
Yea, I was thinking along the same lines as you, but I have three 4-player games: Super Off Road, Double Dribble, and Magic Johnson's Fast Break.
Craig Damlo
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Re: 4-Player Controller Dock
I would also like to know what's up with it.....i started a thread like this quite a few years ago, but got no replys on it. Maybe this time something will show
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Re: 4-Player Controller Dock
It has some special circuitry, but probably not anything that you couldn't do yourself. You might be better off just getting a four score, though. I think Wikipedia has some info on it.CraigD wrote:Does it contain special circuitry or can you simply wire 4 controllers directly into an NES?
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Re: 4-Player Controller Dock
hmmm, I looked but came up emptynevermind1534 wrote:It has some special circuitry, but probably not anything that you couldn't do yourself. You might be better off just getting a four score, though. I think Wikipedia has some info on it.CraigD wrote:Does it contain special circuitry or can you simply wire 4 controllers directly into an NES?
i hate how electronic part suppliers give you an option on their website to filter your searches so that you can find a certain part and no results come up!
Re: 4-Player Controller Dock
Yea me too; I assume that it's just gonna be easier to buy one and crack it open.footinmouth wrote:hmmm, I looked but came up emptynevermind1534 wrote:It has some special circuitry, but probably not anything that you couldn't do yourself. You might be better off just getting a four score, though. I think Wikipedia has some info on it.CraigD wrote:Does it contain special circuitry or can you simply wire 4 controllers directly into an NES?
Craig Damlo
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Re: 4-Player Controller Dock
once someone does, I hope they make a schematic and take some extra notes. Once i get my lcd ill keep my eyes out for a fourscore I'm pretty good at drawing schematics.CraigD wrote:Yea me too; I assume that it's just gonna be easier to buy one and crack it open.footinmouth wrote:hmmm, I looked but came up emptynevermind1534 wrote:It has some special circuitry, but probably not anything that you couldn't do yourself. You might be better off just getting a four score, though. I think Wikipedia has some info on it.CraigD wrote:Does it contain special circuitry or can you simply wire 4 controllers directly into an NES?
i hate how electronic part suppliers give you an option on their website to filter your searches so that you can find a certain part and no results come up!
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Re: 4-Player Controller Dock
http://en.wikipedia.org/wiki/NES_Four_Score" onclick="window.open(this.href);return false;
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Re: 4-Player Controller Dock
information reposted from NESdev.com nes4play.txt reposted without permisssion as contact information was not included.
This is cited from nocash.emubase.deEverynes - Nocash NES Specs Controllers - Joypads
Spoiler:
Martin Korth wrote:NES Four-player devices (Satellite and Four Score)
Used by Tengen's "Gauntlet II", and Nintendo's "RC Pro Am 2". The device is connected to both of the consoles two controller ports, and up to four controllers can be connected to the device.
The device is accessed much like normal joypads, except that the returned bitstream consist of 24 bits instead of normal 8 bits:The ID codes can be used to detect if the 4-player adapter is connected (used by RC Pro Am 2, not used by Gauntlet II). Otherwise the ID field typically contains all ones (normal/single controller), or all zeros (no controller connected at all).Code: Select all
write "1-then-0" to (4016h) (that only once, for all 24 bits) read 1st 8 bits: controller 1 (4016h) / controller 2 (4017h) (as normal) read 2nd 8 bits: controller 3 (4016h) / controller 4 (4017h) (new ports) read 3rd 8 bits: 0,0,0,1,0,0,0,0 (4016h) / 0,0,1,0,0,0,0,0 (4017h) (ID codes)
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Re: 4-Player Controller Dock
I don't know if this is of any value;
http://en.wikipedia.org/wiki/Famicom_Four-way_Adaptor" onclick="window.open(this.href);return false;
(the third paragraph)
http://en.wikipedia.org/wiki/Famicom_Four-way_Adaptor" onclick="window.open(this.href);return false;
(the third paragraph)
Re: 4-Player Controller Dock
Yes, though that is an exerpt from nesdev.comFamicom Four-Player Adapters Technical Document by Richard Hoelscher.
This the first time that I've seen an article plagarized to Wikipedia!
I am troubled and yet also very much amused.
Meow;Richard Hoelscher wrote:+----
| NES Incompatibility
+--------
The NES was designed to accommodate the use of the light gun and robot that were already being used for the famicom, without making the console more complicated. To accommodate this without redesigning their devices and programs, the ports of the removable joysticks were equipped not only with data line D0, but also D3 and D4. Unfortunately, this prevented games that used other methods of communicating with the Famicom expansion port, including keyboard and four player games, from being released on the NES without major modifications.
To accommodate four player gaming on the NES, Nintendo later released the Satellite and Four Score, which requires games to support another method of reading the joystick ports (first eight reads come from the first controller on the port, second eight reads come from the second controller on the port, followed by another 8 reads that includes a signature, letting the game know whether or not a four-player device is plugged in).
It comes as a surprise to most people that the Famicom's four player games are incompatible with the NES' Four Score, but many of them forget that the original Famicom's controllers were hardwired on to the unit.
This the first time that I've seen an article plagarized to Wikipedia!
I am troubled and yet also very much amused.
Re: 4-Player Controller Dock
zeturi wrote:If you're getting 404'd when trying to use the links in stickies, try this tutorial to find that juicy info.
four play adaptor
It looks like the FourScore uses a single PGA/custom IC that has toffleable modulator for bits A/B.
I think that I've worked out a compatible logic (minus turbo) for a four player adaptor. (I know that it can be reduce by to IC's, but it works in theory...)
Logic Diagram
EDIT: Attachment deleted, PM for CDL file.
Additional gate definitions for scienceontheweb.netCEDAR LS 1.5 beta (insert into line #4848 of cl_gatedefs.lib where "#NOTE: Need to make the 8-bit shift register shape." follows.)
edit: moved image to external host
I think that I've worked out a compatible logic (minus turbo) for a four player adaptor. (I know that it can be reduce by to IC's, but it works in theory...)
Logic Diagram
Spoiler:
Additional gate definitions for scienceontheweb.netCEDAR LS 1.5 beta (insert into line #4848 of cl_gatedefs.lib where "#NOTE: Need to make the 8-bit shift register shape." follows.)
Spoiler:
Last edited by Snow_Cat on Sat Sep 11, 2010 3:43 pm, edited 2 times in total.
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Re: 4-Player Controller Dock
bump
Last edited by gamax92 on Sun Aug 22, 2010 10:35 pm, edited 1 time in total.
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