Twin Cobra PCB

[Sneakyturtleegg]

I am in the U.S. and have a Twin Cobra PCB. It is something I bought in 2009 and never tested/played. I don't have a Mister but do have an Analogue Pocket. I am ignorant as to what arcade games/cores are available for the Mister. I was wondering if a core containing Twin Cobra has been released? If not, are any devs interested in reverse engineering my board? Let's discuss! Thanks.

[RiotRay]

Hi!

As far as I know Jotego is already working on a "Twin Cobra'" core. I guess he has a working board for this too.
But you can ask him yourself about this. Help is always welcome.

[LamerDeluxe]

Hi!

As far as I know Jotego is already working on a "Twin Cobra'" core. I guess he has a working board for this too.
But you can ask him yourself about this. Help is always welcome.

Is Jotego actually already working on it, or is it in the pipeline? Because then it could still take years. Personally, I think if it is only planned for sometime in the future, it shouldn't deter other developers from creating a core.

[pepito]

Jotego is working on many cores but very little of them will goes out.
this is a way of grabbing all to avoid other devs to work on it.
still waiting updates from Atari Jaguar core.

[FPGA64]

Jotego is working on many cores but very little of them will goes out.
this is a way of grabbing all to avoid other devs to work on it.
still waiting updates from Atari Jaguar core.

Its not a first claim situation. No one is stopping anyone working on any core they wish.

[pepito]

sure...
but it is stupid.

[bootsector]

It would be stupid to work on a core that already exists.

Working on, and actually delivering, a core that someone else claimed as being WIP is awesomeness!

[thorr]

It would be stupid to work on a core that already exists.

Not necessarily true. There are many cores that can be improved and there are several that have been with completely new cores. Sometimes it is better to just start over. I personally prefer quality or as close to perfect as possible over quantity.

[bootsector]

It would be stupid to work on a core that already exists.

Not necessarily true. There are many cores that can be improved and there are several that have been with completely new cores. Sometimes it is better to just start over. I personally prefer quality or as close to perfect as possible over quantity.

Agreed! However, my comment was in the context of people announcing cores as WIP for parking lot purposes without actually releasing anything.

[jotego]

I am in the U.S. and have a Twin Cobra PCB. It is something I bought in 2009 and never tested/played. I don't have a Mister but do have an Analogue Pocket. I am ignorant as to what arcade games/cores are available for the Mister. I was wondering if a core containing Twin Cobra has been released? If not, are any devs interested in reverse engineering my board? Let's discuss! Thanks.

We extracted the schematics for a bootleg board but they turned out to be rather different from the original. We would like to analyze the original board and publish the data. We have done so for many boards regardless of who ends up doing the core.
This board has a DSP which put me off for a while. I heard that the DSP may only be used for copy protection so it is possible to make a first version of the core without the DSP. I think there was one developer trying to make it. But he wouldn’t extract the schematics.
So, if you want to contribute to preserving the game, please, send the board over and we will dedicate 3-4 weeks of full time work to do it in return for your donation.

[atrac17]

I am in the U.S. and have a Twin Cobra PCB. It is something I bought in 2009 and never tested/played. I don't have a Mister but do have an Analogue Pocket. I am ignorant as to what arcade games/cores are available for the Mister. I was wondering if a core containing Twin Cobra has been released? If not, are any devs interested in reverse engineering my board? Let's discuss! Thanks.

We extracted the schematics for a bootleg board but they turned out to be rather different from the original. We would like to analyze the original board and publish the data. We have done so for many boards regardless of who ends up doing the core.
This board has a DSP which put me off for a while. I heard that the DSP may only be used for copy protection so it is possible to make a first version of the core without the DSP. I think there was one developer trying to make it. But he wouldn’t extract the schematics.
So, if you want to contribute to preserving the game, please, send the board over and we will dedicate 3-4 weeks of full time work to do it in return for your donation.

I own the board; the core is functional. There are errors due to the DSP, this is heavily used and not just for protection checks in post... Neither of the implementations for the TMS32010 are fully functional. We've already fixed the ALU and are debugging in a test bench.

[pram0d]

I am in the U.S. and have a Twin Cobra PCB. It is something I bought in 2009 and never tested/played. I don't have a Mister but do have an Analogue Pocket. I am ignorant as to what arcade games/cores are available for the Mister. I was wondering if a core containing Twin Cobra has been released? If not, are any devs interested in reverse engineering my board? Let's discuss! Thanks.

We extracted the schematics for a bootleg board but they turned out to be rather different from the original. We would like to analyze the original board and publish the data. We have done so for many boards regardless of who ends up doing the core.
This board has a DSP which put me off for a while. I heard that the DSP may only be used for copy protection so it is possible to make a first version of the core without the DSP. I think there was one developer trying to make it. But he wouldn’t extract the schematics.
So, if you want to contribute to preserving the game, please, send the board over and we will dedicate 3-4 weeks of full time work to do it in return for your donation.

Hi Jose,

I actually took a brief look at this last December. The DSP controls properties and certain mechanics of the helicopter. Commenting out certain instructions in the DSP led to gaining invincibility against only certain enemies and did other weird things. So yes, the DSP must be complete and functional for the game to work. Other than that, every aspect of the core seemed to be complete so there's just an outstanding DSP.

Thanks,
Pramod