Recent Posts

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91
General Discussion / Re: SEGA SMS/GG Firmware (BETA)
« Last post by Nori on 29/Dec/2017 05:12:07 PM »
Wow that looks so great. I wish someone would mass produce the Gamegear plugin. I'd love to have one and wouldn't be able to make one myself.
92
I hope they reprint the N64 one, I have a feeling it's going to become a hot item.
93
General Discussion / Re: SEGA SMS/GG Firmware (BETA)
« Last post by skaman on 27/Dec/2017 08:38:30 PM »
Cool, does this work with an official Master System Converter?

No, it only works with the Retrode SMS/GG Plugin.
94
Support / Re: SNES Games Being Shown as Differenty File?
« Last post by skaman on 27/Dec/2017 08:34:23 PM »
SNES detection comes before Atari detection.  The Retrode is not finding a valid SNES header for the carts.  Dirty pins can cause this problem.

You can modify the Config file to force it to read the cart as SNES.  Change the [forceSystem] setting from "auto" to "snes".  Check the file to see what data the Retrode is reading from the cart.  Compare it against a No-Intro dump of the same cart.

Good Luck!
95
General Discussion / Re: SEGA SMS/GG Firmware (BETA)
« Last post by ICEknight on 27/Dec/2017 05:15:48 PM »
Cool, does this work with an official Master System Converter?
96
Support / SNES Games Being Shown as Differenty File?
« Last post by Schatzy23 on 24/Dec/2017 05:57:58 AM »
Hey Everyone,

I'm working on messing around with a few of my older SNES cartridges, testing them out to make sure they still work, and I've gotten a few carts that are showing the ROMs as something completely different than I've normally seen.  The files are showing up as 2600Cartridge.a26 file.  So far, it's only been a few of the games that have done, and I'm hoping that the issue will go away once I spend more time cleaning the pins.  Has anyone else seen this before?  Is it really an issue with dirty connectors or is it something else?  For reference, the games that have been doing this so far are Mortal Kombat, The Great Circus Mystery Staring Mickey and Minnie, and Batman Returns.

Thanks!!
97
General Discussion / Re: Need a bit of help making a Mark III adapter
« Last post by Bock on 23/Dec/2017 08:15:25 AM »
SG-1000/SC-3000 roms have no header.

There are also board variations that present the data in different way (with slightly adjusted code):

Code: [Select]
# smspage /8 /crc "Sega Flipper.sg"
[Sega Flipper.sg]
Size: 16384 bytes (2 pages), CRC:8EFC77BC
 0 ; f3 31 64 c0 ed 56 cd a4 3c 21 00 c0 01 00 04 36 ; Sum:0ADB77, CRC:76994E5B
 1 ; 03 00 03 01 03 02 02 03 03 03 03 03 02 03 02 03 ; Sum:0E3874, CRC:BAECDD57

# smspage /8 /crc "Sega Flipper [40k map].sg"
[Sega Flipper [40k map].sg]
Size: 40960 bytes (5 pages), CRC:FD76AD99
 0 ; f3 31 64 c0 ed 56 cd a4 9c 21 00 c0 01 00 04 36 ; Sum:0AE177, CRC:9923C1F3
  Same pages: 00-03
 1 ; f3 31 64 c0 ed 56 cd a4 9c 21 00 c0 01 00 04 36 ; Sum:0AE177, CRC:9923C1F3
  Same pages: 00-03
 2 ; f3 31 64 c0 ed 56 cd a4 9c 21 00 c0 01 00 04 36 ; Sum:0AE177, CRC:9923C1F3
  Same pages: 00-03
 3 ; f3 31 64 c0 ed 56 cd a4 9c 21 00 c0 01 00 04 36 ; Sum:0AE177, CRC:9923C1F3
  Same pages: 00-03
 4 ; 03 00 03 01 03 02 02 03 03 03 03 03 02 03 02 03 ; Sum:0E7339, CRC:6EE6531C

Notice that second version, there's technically also 16 KB of data but in the memory map exposed by the circuitry, the first 8 kb are mirrored 4 times. Some games access the mirrored regions.

They are fairly unusual, and due to compatibility reasons we decided to release rom dumps in this same format (with the duplicated 8 kb, so the .sg files are 40 KB there).

If you have any technical questions on Sega 8-bit stuff don't hesitate to post on that smspower thread (where we are), we'll happily help you.
98
Support / Re: Game Gear Roms Not Detecting Correct Size
« Last post by KingMike on 23/Dec/2017 07:57:03 AM »
The problem was fixed long ago, but from what I recall reading on SMS Power, games above 256KB (at least for SMS, but perhaps the practice carried over to GG dev since it was a similar console) didn't state a larger size as the BIOS would take longer to verify the cart. I'm guessing the point in the BIOS checking the cart was to check if it was inserted and working and checking only 256KB was perhaps considered enough to get the point.
99
General Discussion / Re: Need a bit of help making a Mark III adapter
« Last post by skaman on 23/Dec/2017 05:43:14 AM »
If anyone is interested in a Mark III Plug-in, I have some extra PCBs and I can also assemble a small number with cart connector (NO SHELL).

Contact me by PM.
100
Support / Re: StarFlight (Sega Genesis) missing RAM file. ROM file ok.
« Last post by bluegrassjedi on 16/Dec/2017 11:56:11 PM »
ALCON,

Setup= Retrode2 + .024b BETA FW
Game= Starflight (Genesis)

The new Retrode2 .24b BETA FW solved the problem.
I can now see the RAM and ROM file for starflight.
I was able to load it in my emulator as well. :)
EPIC Thank you and Kudos to skaman!!

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