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Important: jtbeta.zip changed, you need to update your copy.

I used to believe in Christmas miracles, now I have to believe in Halloween miracles too! Just five days ago, the JTSHOUSE core was unplayable and with completely broken music. I thought that having this beta release was a long shot, but here we are.

The main difficulty, as I explained before, has been the microcontroller (MCU). I had assumed it was based on a different CPU, and later on found that it was based on a newer model. I had to add the new instructions to this code (foreign to me). Still, the game didn't improve. Looking deeper into it, this newer CPU was running many instructions faster than the older model. Changing that was not doable in a day, but luckily there was a way around: overclocking! That finally made the game playable. So the beta core has three accurate CPUs and a fourth one, which is not cycle accurate but doing the job. Making a new design for this CPU should not be too hard, maybe a 2-week task, and it is important for other games too. I will look again into it but, for a beta, this is good to go.

Other beta quirks: no pause function yet and some minor graphical glitches.

Working on this core this week has shed new light to Bubble Bobble (again) and also the JT51 (YM2151 compatible) module. So expect several public core maintenance updates for this Friday. There will not be a Patreon post but just a quick note on Discord and X.

Note that this JTSHOUSE beta is only for MiSTer and Pocket as the system does not fit in smaller devices.

We are looking into adjusting the Patreon prices for low tiers after four years without changes. This will not affect current subscribers. New comers will see the new price while legacy subscribers will keep the old one. No action needed on your side.

Have a spooktacular Halloween!

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Importante: jtbeta.zip ha cambiado, tienes que actualizar tu copia.

Solía creer en los milagros navidadeños, ¡ahora también tengo que creer en los milagros de Halloween! Hace sólo cinco días, el núcleo de JTSHOUSE era injugable y con la música mal, pero mal. Pensaba que tener esta versión beta era una posibilidad remota, pero aquí estamos.

El principal escollo, como ya expliqué, ha sido el microcontrolador (MCU). Había asumido que estaba basado en una CPU concreta, y más tarde descubrí que estaba basado en un modelo más nuevo. Tuve que añadir las nuevas instrucciones a un código extraño para mí. Aún así, el juego no mejoró. Mirando más a fondo, esta CPU nueva ejecutaba muchas instrucciones más rápido que el modelo antiguo. Cambiar eso no era posible en un día, pero por suerte había una solución: ¡overclocking! Eso finalmente hizo que el juego funcionase. Así que el núcleo beta tiene tres CPUs precisas y una cuarta, que no es exacta al ciclo, pero que hace su faena. Hacer un nuevo diseño para esta CPU no debería ser demasiado difícil, tal vez una tarea de 2 semanas, y es importante para otros juegos también. Volveré a investigarlo pero, para ser una beta, así está bien.

Otras peculiaridades de la beta: aún no hay función de pausa y hay algunos fallos gráficos menores.

Trabajar en este núcleo esta semana ha arrojado nueva luz sobre Bubble Bobble (otra vez) y también sobre el módulo JT51 (compatible con YM2151). Así que esperad varias actualizaciones públicas de mantenimiento del núcleo para este viernes. No habrá un post en Patreon sino una nota rápida en Discord y X.

Ten en cuenta que esta beta de JTSHOUSE es sólo para MiSTer y Pocket ya que el sistema no cabe en dispositivos más pequeños.

Estamos considerando ajustar los precios de Patreon para los niveles bajos después de cuatro años sin cambios. Esto no afectará a los suscriptores actuales. Los nuevos suscriptores verán el nuevo precio, mientras que los antiguos mantendrán el anterior. No es necesaria ninguna acción por tu parte.

¡Que tengáis un Halloween espeluznante!

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Comments

Anonymous

Has anyone gotten this to work, yet? Splatterhouse runs, but I can' insert a coin. This is with the new beta-2.bin file. All the other Jotego games now have credits rolling. Do I need to replace beta.bin with beta-2.bin? I've tried that, too, but still credits on everything.

Anonymous

I have the same issue. None of the games on beta will allow me to even insert a coin and I cannot play any of them.

Anonymous

Had the same issue until I manually put the beta.bin (from jtbeta.zip, downloaded from the splatter house post) in assets/NAME/common (also make sure you don’t have an old beta.bin in your root when/if you run an updater)

Anonymous

I can't get Splatter House working on MiSTer. The buttons don't respond on Splatter House and I'm locked out of all the other beta cores after updating the beta zip file. Splatter House is running fine on Pocket tho.

Anonymous

I'm going to miss the wild audio of the Splatterhouse beta when the core is updated/fixed. Like others have said, it's genuinely brilliant to experience its broken/chaotic character. A menu toggle for the "Halloween Beta Music" would be a treat, if it's simple to implement. In any case, many many thanks for bringing another video game holy grail home.

Holger Lagerfeldt

Awesome! There's a flicking block of lines on the first level on the left and right side of the screen - bug?

JOTEGO

Can you tell us the approximate location of it? We can't confirm it when we play.

Televicious Goober

Just thought I should note here, but Splatterhouse video sync is very skewed with the official mister composite adapter. There is a color image, but it's unplayable.

Rent Optional

Anyone else suddenly not able to get Splatter house to boot? The core loads, then a black screen.

Wayne

Yup latest update simpsons tmnt and aliens cores won’t work so frustrating

XC-3730C

I am still not able to insert coins