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SA-1 chip doesn't exist

Nov 12, 2017 at 9:44:48 PM
Aaendi (0)

(Andy Koenigs) < Eggplant Wizard >
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Explain to me how Kirby Super Star and Super Mario RPG and everything else that supposedly "uses an SA-1 chip" work at full speed on emulators and SD cartridges that "don't support the SA-1." 

Also, why is it that if you open these games you don't see a chip that resembles the one shown on Wikipedia.  I've openned like 10 of these games, and not a single one of them has a chip labelled as a SA-1 inside.  Every chip just says "PRG-ROM" and a number.  There isn't even a chip with enough pins to be an SA-1.  SA-1 supposedly has 40 pins, and all of these ROM chips only contain 20 to 30 pins on them.

The most jarring proof is the fact that according to "technical documents" the SA-1 apparently access SNES's BUS B through the cart.  BUS B ISN'T EVEN CONNECTED TO THE CARTRIDGE SLOT OF THESE GAMES!  They have the same number of pins as a typical SNES game.

Nov 12, 2017 at 10:02:26 PM
Ichinisan (29)
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< King Solomon >
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Emulators support SA1. I remember when they didn't.

Until emulators finally developed SA1 support, people didn't know that the commonly distributed Super Mario RPG dump at the time was a bad dump. Apparently it can't be properly dumped through the cartridge connector since the ROM data must be accessed through the SA1. Someone that understands Nintendo's proprietary ROM pinout probably had to disassemble a cart to get a proper dump.


Edited: 11/12/2017 at 10:59 PM by Ichinisan

Nov 12, 2017 at 10:04:09 PM
Ichinisan (29)
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< King Solomon >
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Originally posted by: Aaendi

Explain to me how Kirby Super Star and Super Mario RPG and everything else that supposedly "uses an SA-1 chip" work at full speed on emulators and SD cartridges that "don't support the SA-1." 

Also, why is it that if you open these games you don't see a chip that resembles the one shown on Wikipedia.  I've openned like 10 of these games, and not a single one of them has a chip labelled as a SA-1 inside.  Every chip just says "PRG-ROM" and a number.  There isn't even a chip with enough pins to be an SA-1.  SA-1 supposedly has 40 pins, and all of these ROM chips only contain 20 to 30 pins on them.

The most jarring proof is the fact that according to "technical documents" the SA-1 apparently access SNES's BUS B through the cart.  BUS B ISN'T EVEN CONNECTED TO THE CARTRIDGE SLOT OF THESE GAMES!  They have the same number of pins as a typical SNES game.


Wow. Um. Super Mario RPG and Kirby’s Super Star definitely do have the extra PCB tabs, just like you see with Super FX games, CX4 games (Mega Man X2/X3), and SDD-1 games.

Which SD cartridge supports Super Mario RPG?


Edited: 11/12/2017 at 10:42 PM by Ichinisan

Nov 12, 2017 at 10:14:48 PM
BouncekDeLemos (81)
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(Bouncy Blooper) < Wiz's Mom >
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I don't think I've heard of those games not being supported to anything, just the FX/Mario chip ones. (correct me if I'm wrong)

I think we all need a rundown refresher on what's what if anyone can. I would, but it's not my expertise not that I'd could recall it anyway, so I'd probably end up spewin' misinformation.

Also, can someone start poppin' open some SA-1 carts? If the OP says they aren't there, then what is?

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Edited: 11/12/2017 at 10:15 PM by BouncekDeLemos

Nov 12, 2017 at 10:34:08 PM
Ichinisan (29)
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< King Solomon >
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My  brother (CZroe) repaired a Super Mario RPG cartridge for another member here. This is what the pins looked like after the repair:


Take note of the extra tabs.

This is the thread:
http://nintendoage.com/forum/mess...

Nov 12, 2017 at 10:41:24 PM
Lincoln (138)
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(Frank W. Doom) < Bowser >
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somebody's off their meds. http://snescentral.com/pcbboards.... that big one, right in the middle "SA1". emulators implement the sa1 features the same way they implement the rest of the console architecture.

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Nov 13, 2017 at 7:16:12 AM
Sign Collector Guy (8)
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I am completely lost here.

Nov 13, 2017 at 9:20:59 AM
Mobiusstriptech (22)
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< Meka Chicken >
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No flash carts support SA-1, that's true, emulators do though. It's been that way for a while now. Maybe someday we will get support on flash carts.

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Nov 13, 2017 at 2:59:07 PM
Lincoln (138)
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(Frank W. Doom) < Bowser >
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Originally posted by: Mobiusstriptech

No flash carts support SA-1, that's true, emulators do though. It's been that way for a while now. Maybe someday we will get support on flash carts.

doesn't one of them allow you to transplant a sa-1 from a donor cart? fancy everdrive version maybe?
 

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Nov 13, 2017 at 3:32:08 PM
Mobiusstriptech (22)
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< Meka Chicken >
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No. The super everdrive has a dsp chip, but no other coprocessor support. The sd2snes supports everything but the SA-1 and SuperFX.

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Nov 13, 2017 at 4:13:14 PM
TDIRunner (17)
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(Jon ) < King Solomon >
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Super Everdrive supports DSP if it has an optional DSP chip installed (which can be taken from a donor cart).  No other enhancement chips are supported.

SD2SNES supports:
  • DSP
  • CX4
  • S-RTC
  • OBC-1
  • ST010


SD2SNES does not support:
  • SA1
  • S-DD1
  • SPC7110
  • ST011
  • ST018
  • Super FX
The unsupported chips could theoretically be added in the future.  

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Maybe, just once, someone will call me "sir" without adding, "you're making a scene."


Edited: 11/13/2017 at 04:15 PM by TDIRunner

Nov 13, 2017 at 4:18:20 PM
TDIRunner (17)
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(Jon ) < King Solomon >
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I'm still confused by this thread. Is OP stating that the SA-1 chip is actually some type of conspiracy theory that doesn't really exist?

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Maybe, just once, someone will call me "sir" without adding, "you're making a scene."

Nov 13, 2017 at 4:25:57 PM
Retrostage (36)
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(Mike S) < Meka Chicken >
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I feel like this is some kind of trolling...

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Nov 13, 2017 at 6:27:22 PM
Aaendi (0)

(Andy Koenigs) < Eggplant Wizard >
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Originally posted by: Mobiusstriptech

No. The super everdrive has a dsp chip, but no other coprocessor support. The sd2snes supports everything but the SA-1 and SuperFX.





Yep and it still runs Super Mario RPG and Kirby's Super Star.

Nov 13, 2017 at 6:38:41 PM
Mobiusstriptech (22)
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< Meka Chicken >
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Well if this isn't a troll then the drugs in use by the OP are strong indeed.

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Nov 13, 2017 at 7:02:29 PM
Final Theory (2)

(Final Theory) < Crack Trooper >
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From what I've heard there is one person, the person behind the verisnes, an fpga snes console, who might be working on trying to get sa-1 support for the sd2snes. It would be this person doing the coding work if he actually goes through with it all. This is what I've heard.

Nov 13, 2017 at 8:20:02 PM
11numbers (0)

< Cherub >
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Originally posted by: Aaendi
Yep and it still runs Super Mario RPG and Kirby's Super Star.
I guess this is where the confusion comes in... the Super Everdrive and the SD2SNES do not support either of those games.  Maybe this link will provide some insight or proof krikzz.com/forum/index.php?topic=6299.msg50735

Nov 14, 2017 at 7:27:22 AM
dougeff (13)
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I have a super everdrive with dsp chips. It does NOT play these games. I have tried.

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nesdoug.com -- blog/tutorial on programming for the NES

Nov 14, 2017 at 3:49:45 PM
Ichinisan (29)
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< King Solomon >
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Originally posted by: Aaendi
 
Originally posted by: Mobiusstriptech

No. The super everdrive has a dsp chip, but no other coprocessor support. The sd2snes supports everything but the SA-1 and SuperFX.



Yep and it still runs Super Mario RPG and Kirby's Super Star.

How did you get the impression that those games can currently work on any flashcart? They don’t.
 

Nov 14, 2017 at 3:53:07 PM
Mobiusstriptech (22)
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< Meka Chicken >
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I'm guessing like others have said, that he is just trolling.

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Nov 14, 2017 at 3:59:27 PM
TDIRunner (17)
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(Jon ) < King Solomon >
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Originally posted by: Mobiusstriptech

I'm guessing like others have said, that he is just trolling.

When you look at his history, it makes sense.  I actually remember some of those threads, I just didn't recognize the user name.  
 

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Maybe, just once, someone will call me "sir" without adding, "you're making a scene."

Nov 22, 2018 at 11:54:28 AM
Ichinisan (29)
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< King Solomon >
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Update: There has been progress with SD2SNES. Support for Super FX chip games and SA-1 chip games is somewhat functional now!

Thanks to a fellow called "RedGuy" who started contributing to the open-source SD2SNES.


Edited: 11/22/2018 at 11:55 AM by Ichinisan

Nov 24, 2018 at 8:45:55 AM
dra600n (300)
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(Adym \m/) < Bonk >
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There's also 2 versions of SMRPG - one without the SA-1 chip

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Nov 24, 2018 at 8:52:02 AM
CZroe (31)
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(Julian Emmett Turner II) < Bowser >
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Originally posted by: dra600n

There's also 2 versions of SMRPG - one without the SA-1 chip
LOL! Don’t encourage this paranoid delusion.  

 


Edited: 11/24/2018 at 08:52 AM by CZroe

Nov 24, 2018 at 9:41:05 AM
dra600n (300)
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(Adym \m/) < Bonk >
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Originally posted by: CZroe
 
Originally posted by: dra600n

There's also 2 versions of SMRPG - one without the SA-1 chip
LOL! Don’t encourage this paranoid delusion.  

 
It's not a delusion. When the Retro Duo came out, it was a game that had mixed success in it working on the console (since SA-1 and other special chip games didn't wok on it). There's versions of the game that the SA-1 isn't present.

https://www.cheapassgamer.com/top...

Seriously.


 

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