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|release = 1998
|discontinued = 2009
|predecessor = [[Sega Model 3Saturn emulators|ST-V]]|successor = Sega Hikaru(光) / System SP, [[Xbox emulators|Chihiro]] (千尋)
|emulated = {{✓}}
}}
====[[wikipedia:List_of_Sega_arcade_system_boards#Sega_Hikaru|Sega Hikaru]] (1999–2002)====
Codenamed "Samurai" The Sega Hikaru had a specific Motorola 68000 CPU just for networkingwas the successor to the Model 3. The CPU was a 2× Hitachi SH-4 CPU at 200 MHz and , the GPU was a 2× NEC-VideoLogic Custom Chipset and NOT related to PowerVR 2 (PVR2DC/CLX2)at all. It had 100MB of RAM.
====Gaelco PowerVR Based (1999-2002)====
PowerVR 2-based board from [https://en.wikipedia.org/wiki/Gaelco Spanish company]. Not their early 'Gaelco 3D' board from 1996-1998. There is also an [https://github.com/aaronsgiles/Gaelco3D inactive emulator] for the unrelated earlier Gaelco 3D system, and [http://adb.arcadeitalia.net/dettaglio_mame.php?game_name=gaelco_serial&search_id=&lang=en MAME] [https://github.com/mamedev/mame/blob/master/src/mame/driversgaelco/gaelco3d.cpp supports] that one.
====[[wikipedia:List_of_Sega_arcade_system_boards#Sega_NAOMI_2|Sega NAOMI 2]] (2001–2006)====
===Comparisons===
*'''[[DEmul]]''' is a closed-source emulator for Sega Dreamcast and arcade boards of Sega NAOMI and follow-up variants, including the NAOMI, Atomiswave, Hikaru, Gaelco, NAOMI 2, System SP (Aurora) and couple Cave CV1000 systems. Only non-MAME arcade ROMs work here.
*'''[[Flycast]]''' is a fork from the independent [[reicast]] emulator avaliable as a standalone emulator and as a libretro core; and seems to be more advanced in overall compatibility and feature levels of Dreamcast and several arcade boards emulation. It is possible that some optional hacks are used to achieve correct graphics on some compatible arcade games. [https://www.libretro.com/index.php/reicast-libretro-atomiswave-support/ Atomiswave support] was initiated around November 2018. Since August 2022 Flycast is able to emulate NAOMI 2 [https://github.com/flyinghead/flycast/releases/tag/v2.0].
*'''[[nullDC]]''' was the first independent, open-source Sega Dreamcast emulator to attempt emulation of the NAOMI arcade board. Its compatibility is unknown, so is not included in the NAOMI compatibility chart below. The emulator has since been superseded by its follow-up spin-off, 'reicast', although that one doesn't yet have any arcade board support. However, its libretro arm now supports partial emulation of NAOMI and Atomiswave boards.
*'''[[MAME]]''' is a long way behind DEmul in terms of compatibility but is being actively developed. It is shown to have adequate support of the NAOMI (Most games could show graphics & some are playable), and preliminary support for Atomiswave and Hikaru boards and at least [https://wiki.mamedev.org/index.php/MAME_0.127u1 BIOS] support for NAOMI 2. [https://wiki.mamedev.org/index.php/MAME_0.191 v0.191] (Oct 2017) supports SuperH CPU cores and has a preliminary SH3/SH4 recompiler for CV-1000 only. NAOMI & Hikaru driver emulation was still being worked on since then up to [https://wiki.mamedev.org/index.php/MAME_0.201 0.201] (Aug 2018).
|-
|18 Wheeler: American Pro Trucker
|{{✓}} ||{{✓}} ||{{✗✓}} ||{{✓}}
|-
|Akatsuki Blitzkampf Ausf.Achse/Akatsuki Denkou Senki
|-
|Crazy Taxi
|{{✓}} ||{{✓}} ||{{✗✓}} ||{{✓}}
|-
|Cyber Troopers Virtual-On: Oratorio Tangram M.S.B.S. Ver. 5.66
|-
|Capcom vs. SNK: Millennium Fight 2000
|{{✓}} ||{{✓}} ||{{✗✓}} ||{{✓}}
|-
|Giga Wing 2
|-
|Gun Survivor 2: Biohazard CODE:Veronica
|{{✓}} ||{{✓}} ||{{✗✓}} ||{{✓}}
|-
|Mazan: Flash Of The Blade
|}
These lists are updated as of MAME 0.202262 (not all of them have been tested on 0.262 though), DEmul's April 2018 build and Flycast's overall compatibility updated as of June 2019.
<nowiki>*</nowiki> '''DEmul:''' The arcade boards' compatibility lists for DEmul can be found inside the 'arcade_compat.txt' file inside DEmul's release archives. It covers most boards but not the Cave CV1000 boards. Also see [http://www.gametronik.com/site/rubriques/DEMUL/Utilitaires/naomi.compat.txt naomi.compat.txt].
<nowiki>**</nowiki> '''Flycast:''' The arcade boards' [https://github.com/libretro/reicast-emulator/issues/136 compatibility lists] for reicast's libretro core can be found on that core's GitHub repository ([https://github.com/libretro/flycast/blob/master/core/hw/naomi/naomi_roms.h Official]). It now supports reading/decryption of [https://github.com/libretro/reicast-emulator/issues/371#issuecomment-435695058 all types of proper MAME rom sets for DC-based arcade systems] (NAOMI games with M1, M2, M3 & [https://www.libretro.com/index.php/reicast-libretro-naomi-and-mame-rom-support/ M4] keys-based encryption; NAOMI GD-ROM games & Atomiswave games). There is no emulation for NAOMI 2 and NAOMI 2 GD-ROMs as it's held back by the fact MAME lacks documentation on the special ELAN custom chip for geometry processing on that board. Ongoing [https://github.com/libretro/flycast/issues/418 support list of arcade platforms based on the SH-4 CPU]. Supports loading both .gdi and CHDv5 formatted files - see a [https://github.com/libretro/flycast/issues/54#issuecomment-435374418 git comment] for how to format a folder with GDI dump files into highly compressed CHD files. Merged ROMs, ROMs archived with 7zip as well as parent/split ROMs are now supported. It can play Demul-compatible ROMS (In .bin/.dat file formats).
<nowiki>***</nowiki> '''MAME:''' MAME has [https://wiki.mamedev.org/index.php/MNW#naomi working] but [https://wiki.mamedev.org/index.php/MNS#naomi incomplete] NAOMI board emulation. Some games are playable. Support for several other boards (i.e. System SP/Aurora & Hikaru) are very basic. GitHub compat pages: [https://github.com/mamedev/mame/blob/master/src/mame/driverssega/naomi.cpp NAOMI 1-2/Atomiswave], [https://github.com/mamedev/mame/blob/master/src/mame/driverssega/hikaru.cpp Hikaru]. adb.arcadeitalia.net's MAME compat database for [http://adb.arcadeitalia.net/lista_mame.php?game_sourcefile=naomi.cpp&arcade_only=0¤t_version=0 NAOMI]. Progetto Emma's [http://www.progettoemma.net/indice.php?source=naomi.cpp NAOMI compat database].
<nowiki>****</nowiki> '''Ports:''' Many games were ported to consoles available when the arcade games where released. These games from the NAOMI board have come on Dreamcast (overwhelmingly), GameCube, PlayStation 2, Xbox, Wii, Xbox 360, Windows and macOS as well as handhelds like GBA, PSP, and NDS.
* [http://romshepherd.com/index.php?topic=4325.0 romshepherd.com's thread] (DEmul's arcade setup guide)
* [https://forums.launchbox-app.com/topic/38161-sammy-atomiswave-demullaunchbox-tutorial/ forums.launchbox-app.com's thread] (DEmul's Atomiswave setup guide)
* [https://github.com/TheArcadeStriker/flycast-wiki/wiki/Getting-started-with-Flycast#naomiatomiswave-bios-files Getting Started with Flycast - NAOMI/Atomiswave BIOS files]
* [https://www.gamulator.com/roms/sega-naomi Full Set of Sega Naomi ROMs]
* [https://www.retrostic.com/roms/naomi Sega Naomi ROMs]
