Kageki
Español abajo 日本語は以下
We bring support to one more arcade title this week: Kageki. This game operates on hardware very similar to Insector X except for the sound. The PCB features a PCM driver to play voices and sound effects. The English and Japanese versions have different voices, although the game has a distinct Japanese atmosphere in every scene.
Note: MRA and .rom files for Insector X have changed for this version of the JTKIWI core. This was needed to support Kageki in the same core.
As for CPS3, we got the first set of CPS3 chip samples thanks to a donation by @thingsgeek81. We have unsoldered them and sent to Furrtek for decapping and imaging. We are unsure about how far we can go with this reverse engineering as the chip technology may be too advanced. We’ll see. Work on the schematics continued too. We have been able to identify ground and VCC pins after J. Cruz told us that 38 Ohm between those two pins was expected in sound boards too. Thank you
The CPS1 and CPS1.5 cores had a bug introduced last August that increased the CPU speed and broke the cycle accuracy. Sqwirral noticed and reported it. We have confirmed and identified when the error was introduced. The bad version has been removed from JTBIN. Version jtcps1_20220705 (reported as 61626fc in MiSTer’s OSD menu) is correct and is the latest one published in JTBIN now.
Have a nice weekend and see you next Friday
Español
Brindamos soporte a un título arcade más esta semana: Kageki. Este juego funciona con un hardware muy similar a Insector X excepto por el sonido. La PCB cuenta con un controlador PCM para reproducir voces y efectos de sonido. Las versiones en inglés y japonés tienen voces diferentes, aunque el juego tiene una atmósfera claramente japonesa en cada escena.
Nota: Los archivos MRA y .rom para Insector X han cambiado para esta versión del core JTKIWI. Esto era necesario para que Kageki funcionase en el mismo core.
En cuanto a CPS3, obtuvimos los primeros chips para investigación gracias a una donación de @thingsgeek81. Los hemos desoldado y enviado a Furrtek para su descapsulado y fotografiado. No estamos seguros de hasta dónde podemos llegar con esta ingeniería inversa, ya que la tecnología de chips puede que sea demasiado avanzada. Ya veremos. El trabajo en los diagramas esquemáticos prosigue. Hemos podido identificar los pines de tierra y VCC después de que J. Cruz nos dio la pista de que 38 ohmios entre esos dos pines era normal en esta placa. ¡Gracias!
Los cores de CPS1 y CPS1.5 sufrieron un error en agosto que aumentó la velocidad de la CPU y rompió la precisión del core. Sqwirral se dio cuenta y nos informó. Hemos confirmado e identificado cuándo se introdujo el error. La mala versión está eliminada de JTBIN. La versión jtcps1_20220705 (aparece como 61626fc en el menú OSD de MiSTer) es correcta y es la última publicada en JTBIN ahora.
Que tengáis un buen fin de semana y nos vemos el próximo viernes.
火激 日本語
日本語のTwitterアカウントもあるのでぜひご覧ください!
今週はもう一本、アーケードタイトルをお届けします。火激です。このゲームは、サウンドを除いてインセクターXと非常によく似たハードウェアで動作します。PCBはボイスと効果音を再生するためのPCMドライバを備えています。英語版と日本語版では音声が違いますが、どのシーンでも日本独特の雰囲気があります。
注：このバージョンのJTKIWIコアでは、インセクター XのMRAと.romファイルが変更されています。これは同コアで火激に対応するために必要なことでした。
CPS3に関しては、@thingsgeek81さんからの寄付のおかげで、CPS3チップサンプルの最初のセットを手に入れました。これをアンソルダーしてFurrtekに送り、デキャップとイメージングを行ってもらっています。チップの技術が進みすぎている可能性があるため、このリバース・エンジニアリングにどこまで踏み込めるか、私たちはまだ確信が持てません。いずれ分かるでしょう。回路図の作成も引き続きしています。J. Cruz氏から、サウンドボードでもこの2つのピンの間に38オームが想定されていることを教えてもらい、グランドとVCCピンを特定することが出来ました。ありがとうございました
CPS1とCPS1.5コアには、昨年8月に導入された時点でバグがあり、CPU速度が上がり、サイクル精度が壊れました。Sqwirralがそれに気づき、報告しました。このエラーがいつ発生したかを確認し、特定しました。この不良バージョンはJTBINから削除されました。バージョンjtcps1_20220705（MiSTerのOSDメニューで61626fcと報告されています）は正しく、現在JTBINで公開されている最新のものです。
よい週末を。そしてまた来週金曜日に!!
Comments (18)
Seriously and Mohamed I got an easy solution for ya dude. Don't pay for the Patreon if you're not happy.
100% agree, in fact whatever Mohamed is paying I’ll up my subscription and cover the difference - JT pm me with what you like to do as happy to
Sadly, The pocket is slowing down the progress on the new cores...
you got proof of this?
Thanks very much! I've tested it on MiST, it has debug symbols/numbers on screen. Insector X works very well 😊. There will be a Sidi update?
Yes, I’ll update it when I add support for The New Zealand story
That's great news! Looking forward to CPS3 and future Pocket cores.
Any updates on the OutRun core Jotego??
I have to get back to the DDR (MiSTer) PSRAM (Pocket) problems I found when implementing the object frame buffer. I'm giving priority to publishing a few new games this month as Out Run development took several weeks already.
Appreciate you guys!
Ooo neat, KaGeKi! Another one that my childhood skating rink had! I remember that machine had a fun quirk where it would actually respond to controls in the attract mode. No scoring and it would eventually time out and go back to the title but it was a fun way to kill time when I was out of quarters. :)
Nice one JT - does anyone have some weird numbers down the left hand side of the screen?
My fault. Those are debug numbers. I have corrected the MiSTer version. If you run update_all again you'll get it fixed.
Thank you for the new core, however the Kageki (hack).json and Kageki (US).json don't appear to have corresponding .mra files in the jtbin. World and Japan do have their respective .mra files.
I was not intending to publish them as I hadn't tested them. The MRA files slipped through as it happens sometimes. They seem to work fine. I'll add them for the Pocket too.
Awesome. A new game to check out tomorrow 👍
If you can’t reverse engineer the chip with the way you’re utilizing now, what is the alternative?
The alternative is to use the information gathered using traditional software reverse engineering. MAME has a lot of information about that. Most of the time, MAME information is correct but we pretty much make new discoveries each time we do in deep research. We then tell the MAME team too so they can improve emulation. Either way, we will have a CPS3 core.