Recent content by whatnot

https://github.com/GXTX/YACardEmu Enjoy

You can try that yes, there's no data that's tied to the system beyond the SN which can be changed easily. Would suggest using the one that's in MAME just to be safe if you go down that route. They are, yes. But what I'm confused by is the firmware updater *only* touches the second half of the...

Simply false. How do you think CF flash hacks are used? It isn't by modifying segaboot.

TSOP on the mediaboard is a "filesystem" as described above. "firmware.asic" & "unk_firmware.asic" is what gets run on the asic.

It's pretty easy to add support for different models, but I need to see the log when you run with "-t" in the command line. But you've confirmed that it works with the US version, just not the JP?

Weird! Looks right, can you launch it with `-d` or `-t` so I can see if anything is happening.

Hey there. It should already be supported with my program, did you make sure you set the parity to "even"? RE: your pic, I'm not sure what's going on with those 0x3F FF's

There's nothing special with 1.0's, you just need the USB riser -- the MCP requires it.

I haven't went and looked at what other games actually do, but as far as I can tell Gundam is the only one that actually requires a specific version, rather than checking if the version is over X. https://installgentoo.net/~wutno/sum/FACTORYCHECKXB.512_hacked.BIN When you boot into the...

I'm aware, and I'm aware of it's weird read 8 bytes, dec, flip thing. The hack for Chihiro is interesting, just a single byte change, the second byte was in the interrupt section(?) didn't look much further. Good to know, thanks! Yea, I loaded it at the reset for Alchemy, made the virtual...

I'm not great with actual RE, but I'd love for some tips with getting IDA or Ghidra to xref to text section... On either the V850 ASIC or the MIPS on the net board. I even went as far as getting up the virtual sections on the V850 and *nothing* was getting referenced in terms of strings in the ROMs.

I'm talking about the type-3 net board, not media board. Yes, it has 2 revisions on the flash, but it's only accessible via the jumper I documented earlier in the thread.

They only really check it when writing from the factory tool -- if you remove the flash and write it there it's not checked by the MIPS proc. But it's just CRC32 then inverted lol.

Figured out the checksum method they used with the net firmware and can produce flashable packages with it. My motivation for this was Gundam Battle Operating Simulator actually requires a specific firmware version and wont run without it, however, they actually check if the version is NULL...

Just documenting some undocumented jumpers on the base board. The 6 jumpers on the board are actually for controlling the D-Terminal settings, this would only be useful if you have a monitor/TV which abides by the reported settings on a D-Terminal input. JP3S & JP4S control line count JP5S &...