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no need to over-complicate things, desolder and flash directly to 4.02 works just fine, this was confirmed many times

have you checked links to dreamcast-talks etc forums ? sure, system load (and possible performance too) will be not exact same as original.

as was said above - FOV change. i.e. games still works in 640x480 but ratio changed to fit nice on 16:9 LCD screens it is a bit more complex in case of 3-screen F355 but same principle - they changed view matrix values to make in look good on flat line of 3 screens

there shouldn't be any difference between 4.01 and 4.02 in case of netboot, .02 hack affects CF boot only. it more smells something hardware-wise, bad RAM or smth like that.

you may find cartridge dump in MAME crack its protection, or decrypt some data or smth else like that basically same type of task as crack some PC game to play it for free :D nobody. at various points it was Elsemi, Deunan Knute, or me

it's just one of later revisions Naomi 1, you may check some notes there https://github.com/mamedev/mame/blob/140b1ca07adda3edc8b4d0830211f586b97e07cc/src/mame/drivers/naomi.cpp#L86 they was mainly used in games which uses RS232 peripheral devices, like Star Horse or Mushiking series, and number...

it doesn't say that, list at page 4 is about netboot "conversions". the game itself dumped, it's just nobody cared to crack it to boot from DIMM. this list is way too outdated (~10years I think) and not recommended to use, it also have wrong information in number of places.

only 2 Naomi is not enough, you'll need at least 4 regular Naomi 1/2, plus one more 2x-PCB multi-board main unit, all of them should have comm.boards and should be connected via optical network. each of 4 regular Naomis also should have card reader. only in this case game will work. so, very...

yep, this one looks pretty good to me, good work :)

not sure about baudrate, but 8E1 part are correct, I've checked "RS422/RS232C BD DOC" MCU code and it initializes serial port in this mode.

yep, you did it right. but it seems something went wrong, perhaps not correct serial comms settings like parity or stop bits count ? I'd imagine these things might be configured by CRW DIP switches, so even if InitialD games uses exact same device, in theory they may use not the same UART...

you can't Naomi 1 != Naomi 2 in CN8 part, N1 have there custom RS422 serial comms (connected to MIE MCU), while in case of N2 InitialD you have at CN8 standard UART (connected to SH4's SCIF serial port). that's why Derby Owners Club games uses setup like: Naomi 1 CN8 <-RS422-> 838-13661...

I'd recommend to forget about that. N1 CN8 are Sega's custom RS422-like serial interface, no one knows how the heck it works at hardware level, at software level uses custom protocol to communicate with RS422/RS232 interface board. RE'ing of these sounds way above your (current) skills, if you...

@AbolishedEnigma you've did something wrong, captured data looks garbage nonsense. check beginning of this thread for InitialD reader logs, DOC should be almost the same.

it's hard to say, so far we have none dumps of any SFIII 3rd ASIA carts BIOSes, neither CD nor NoCD versions. btw, @Darksoft

yes, this seller even don't bothered to do full ISO copy, but rather copied files and burn them to CD-R. I was expecting, for such a big price tag seller will be at least cared to fake ISO filesystem/image creation timestamp's :D

you didn't get it. it's suck because it's quite stupid "hardcoded request - hardcoded reply" type script, which works for specific game (series) only. if it was proper emulation - it would work with any games which uses same reader model, with no changes required, or in worst case with minimal...

you didn't get the point. in short, how most of arcades was RE'd: was dumped their's code&data ROMs and analyzed. this is reverse engineering, it's legal in US, but it is NOT "clean-room". clean-room it's when you don't do even single peek into some software code or data at all. all the...

:cursing:guys, please do not use terms if you don't know what they actually means. neither of emulators of undocumented platforms (=all arcades) was developed using clean-room reverse engineering. all of them are "not clean" :)

btw, are not correct. it is illegal to use pre-2016 MAME versions commercially, or any its derivatives like for example "mame2003-plus" from RetroArch/Libretro. modern MAME versions have no any commercial use restrictions