Search found 61 matches

by jotego
Sun Mar 17, 2024 8:19 pm
Forum: Arcade Cores
Topic: Twin Cobra PCB
Replies: 9
Views: 1422

Re: Twin Cobra PCB

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 engineeri...
by jotego
Mon Jul 24, 2023 2:41 pm
Forum: General Discussions
Topic: Why Are So Many Cores Missing Horizontal & Vertical Position Settings for CRTs?
Replies: 16
Views: 5344

Re: Why Are So Many Cores Missing Horizontal & Vertical Position Settings for CRTs?

You cannot fix the overscan, it is what it is. The only thing we can do on the analogue output is move the synchronization pulses around a bit. That has the effect of moving the relative image position within the screen. I also included an option to stretch the image horizontally a bit, but it can only help so much. In the end, we cannot emulate th...
by jotego
Wed Jan 18, 2023 6:25 am
Forum: General Discussions
Topic: Xilinx Compatibility
Replies: 7
Views: 2279

Re: Xilinx Compatibility

Porting a core alone is one thing, but you also have to provide things like disc access and controllers, video out, ... that come from our MiSTers Linux application and FPGA framework. E.g. i ported the GBA core in less than a week to the Nexys Video board(Xilinx Artix 7). But to do that, i previously made a very simplistic framework for the board...
by jotego
Wed Jan 18, 2023 6:21 am
Forum: General Discussions
Topic: Hotkey to Mute MiSTer?
Replies: 4
Views: 953

Re: Hotkey to Mute MiSTer?

As far as I know, the sound output comes directly from the FPGA, so when the FPGA gets reconfigured to become a different hardware, the sound output is not driven. Hence the noise. In order to prevent this, the part of the system that is kept alive in between core changes should take control of the audio. That part is the linux subsystem. But, as f...
by jotego
Tue Jun 21, 2022 6:33 am
Forum: General Discussions
Topic: Show display information on OSD instead of battery status
Replies: 0
Views: 645

Show display information on OSD instead of battery status

When I go into the OSD and press left, I get the information screen (where you can set the core/global volume and select the config file). Some people get the display resolution there. I only get wrong information about a battery which does not exist.

Is there a way to hide the battery miss-information?

Using MiSTer v220529
by jotego
Wed May 11, 2022 3:26 pm
Forum: Arcade Cores
Topic: Rastan and/or Speed Rumbler (Rush n’ Crash) — Anyone working on them?
Replies: 14
Views: 5401

Re: Rastan and/or Speed Rumbler (Rush n’ Crash) — Anyone working on them?

I think all the Konami titles and Rastan will be good for you now.
by jotego
Sat Apr 09, 2022 10:55 am
Forum: Arcade Cores
Topic: Rastan and/or Speed Rumbler (Rush n’ Crash) — Anyone working on them?
Replies: 14
Views: 5401

Re: Rastan and/or Speed Rumbler (Rush n’ Crash) — Anyone working on them?

jotego wrote: Wed Apr 21, 2021 8:01 am I have a Rastan original board and a bootleg too. I want to do it, but I guess it will come after System 16 unless I get fed up and need a break from some ugly System 16 issue or something.
About one year after that post, Rastan is done.
by jotego
Sat Apr 09, 2022 10:48 am
Forum: Arcade Cores
Topic: Public Release for Jotego Arcade Cores (Road Fighter, Ping Pong, Hyper Sports)
Replies: 25
Views: 4501

Re: Public Release for Jotego Arcade Cores (Road Fighter, Ping Pong, Hyper Sports)

jca wrote: Fri Apr 08, 2022 5:31 pm Too bad: there is some remnant of the beta phase: annoying popup + text remaining on the screen, covering the top 1/3rd of the screen.
Run update_all again, you seem to be using the beta versions.
by jotego
Fri Feb 04, 2022 3:56 pm
Forum: Arcade Cores
Topic: New Konami cores (public release)
Replies: 12
Views: 10101

Re: New Konami cores (public release)

I have released the public core for Konami's Mikie today.
by jotego
Tue Feb 01, 2022 10:20 am
Forum: Arcade Cores
Topic: New Konami cores (public release)
Replies: 12
Views: 10101

Re: New Konami cores (public release)

Check that your downloader.ini file, at the root of the SD card, contains a jtcores section:

Code: Select all

[distribution_mister]
db_url = https://raw.githubusercontent.com/MiSTer-devel/Distribution_MiSTer/main/db.json.zip

[jtcores]
db_url = https://raw.githubusercontent.com/jotego/jtpremium/main/jtbindb.json.zip
by jotego
Mon Jan 31, 2022 5:27 pm
Forum: Arcade Cores
Topic: New Konami cores (public release)
Replies: 12
Views: 10101

Re: New Konami cores (public release)

gamingarena wrote: Sat Jan 15, 2022 8:33 pm Any estimate on Shinobi release? Looked playable since months back. Thanks for all your hard work
The thing is that Alien Syndrome works with the same RBF and it has severe problems (character stuck and sped-up count down). I want to finish it this month because for me it also feels like a weight when a beta lasts so long.
by jotego
Mon Jan 31, 2022 5:23 pm
Forum: Arcade Cores
Topic: Namco ND-1
Replies: 45
Views: 41426

Re: Namco ND-1

Well this post is from 30 September... so that is almost 4 months ago and still no sign of any of my boards I have sent you... I understand that it always takes more time then you expected but still a little disapointed to wait so long.. Not at all! We've been working around your Hyper Olympic PCB for quite a while. All these Konami cores I have r...
by jotego
Sat Jan 15, 2022 9:54 am
Forum: Arcade Cores
Topic: Jotego's RoboCop Beta Core Released to Patreon Subscribers
Replies: 25
Views: 17698

Re: Jotego's RoboCop Beta Core Released to Patreon Subscribers

Just an update on my issues, i just ran the update_all script again and it seems to work ok now, played on past level 3, and left it running for an hour with no hangups or issues, so not sure what was going on there but all is ok, many thanks to JT. A bad compilation made its way to the first beta by mistake. It was failing on some FPGA devices. I...
by jotego
Sat Jan 15, 2022 9:51 am
Forum: Arcade Cores
Topic: New Konami cores (public release)
Replies: 12
Views: 10101

Re: New Konami cores (public release)

MostroW wrote: Fri Jan 14, 2022 9:01 pm Both cores show the Beta / Patreon screen and are not playable.
You seem to be running the beta versions. Update your system. The public ones read v0f9469c in the OSD about screen. You can also tell because the OSD colour is gray, whereas the beta ones use a yellow colour.
by jotego
Fri Jan 14, 2022 8:31 pm
Forum: Arcade Cores
Topic: New Konami cores (public release)
Replies: 12
Views: 10101

New Konami cores (public release)

Yie Ar Kungfu and Super Basketball are now public cores. Download them from JTBIN or use update_all. Detailes here.
by jotego
Sun Jan 02, 2022 3:57 pm
Forum: Arcade Cores
Topic: When is Sega 16 being Released to the Poor Public?
Replies: 11
Views: 11226

Re: When is Sega 16 being Released to the Poor Public?

Although a long list of titles already work correctly, I still have another long list of titles to fix before making a public release. This is the list of missing games as of today. Anyway, if you want to enjoy the ~100 games working and support the development, you know where to go. ;) The names below refer to the MAME setname: ############ Workin...
by jotego
Sat Dec 18, 2021 5:28 am
Forum: Arcade Cores
Topic: Shaolin's Road (Kicker)
Replies: 7
Views: 6168

Re: Shaolin's Road (Kicker)

Yes, I have a plan since a while ago but have been slow putting it to practice. Many of the cores I made in the second half of the year were designed to ease high score saving but I haven't added the rest of the logic needed to execute it yet.
by jotego
Sat Dec 18, 2021 5:25 am
Forum: Arcade Cores
Topic: Namco System 1?
Replies: 6
Views: 6477

Re: Namco System 1?

I have a Pacmania and a Rolling Thunder PCBs already. They are not at the top of the to-do list but we'll receive attention next year.
by jotego
Sat Dec 11, 2021 9:08 am
Forum: Arcade Cores
Topic: No sound in 1942
Replies: 1
Views: 2792

Re: No sound in 1942

My mistake. It's fixed now.
by jotego
Fri Dec 10, 2021 4:47 pm
Forum: Arcade Cores
Topic: Shaolin's Road (Kicker)
Replies: 7
Views: 6168

Shaolin's Road (Kicker)

Finally, it's here, the public release for Kicker. Extracting the full schematics manually was not the full story. For a specific custom chip, I had to write a small custom code to run in the original board to check what it was doing. I could verify that the chip was reporting the current scan line to the CPU. The game software actually reads it, b...
by jotego
Sun Nov 28, 2021 4:16 pm
Forum: Arcade Cores
Topic: No image anymore on 1941, 1942, 1943 and Commando
Replies: 4
Views: 3538

Re: No image anymore on 1941, 1942, 1943 and Commando

A blank screen usually means that MiSTer cannot find the ROM files.
by jotego
Fri Oct 22, 2021 6:45 pm
Forum: Arcade Cores
Topic: New Arcade Core : Fast Lane
Replies: 4
Views: 2226

Re: New Arcade Core : Fast Lane

I noticed this too - this is the first new arcade core I've seen released to the public since I got my mister and I've updated but this one is not showing up at all and being a bit of a noob there might be something I don't know with regards to the arcade cores. I try to publish at least one core every month. It was MX5000 last month and Fast Lane...
by jotego
Wed Oct 20, 2021 5:05 pm
Forum: Arcade Cores
Topic: Toaplan
Replies: 25
Views: 10756

Re: Toaplan

Hi N.Master,

If there are no schematics available, I extract them from the PCB either fully or partly depending on the need. Measuring signals is very important too, particularly for custom chips. I have a Demon's World PCB at home from Gyrrus. The plan is to do that one after Flying Shark as they share some chips.
by jotego
Sun Oct 17, 2021 4:13 pm
Forum: Arcade Cores
Topic: Toaplan
Replies: 25
Views: 10756

Re: Toaplan

I am finishing Konami's Kicker schematics next week. Toaplan schematics for the Twin Cobra PCB are next. I am trying to include extracted schematics as part of core releases. Schematics ar good for preservation, repairing and also to allow others to check whether the FPGA implementation is accurate. The first system for which I released schematics ...
by jotego
Thu Sep 30, 2021 6:54 am
Forum: Arcade Cores
Topic: Namco ND-1
Replies: 45
Views: 41426

Re: Namco ND-1

Schematics are rarely available. I collect all I can find on the internet as PDF files. I also buy the ones I find on eBay. But, they are still uncommon. For most arcade games, if you want the schematics, you have to create them yourself using the actual PCB. You can see the schematics I made for Exed Exes from the PCB here . So PCBs are necessary ...
by jotego
Thu Sep 30, 2021 6:38 am
Forum: Arcade Cores
Topic: Altered beast arcade core with some wrong sound effects
Replies: 12
Views: 4348

Re: Altered beast arcade core with some wrong sound effects

This is a software problem. It can be solved with a ROM patch, which could go inside the MRA file. Maybe someone will write it...
by jotego
Sun Aug 01, 2021 2:18 pm
Forum: Arcade Cores
Topic: New distribution system for Jotego cores
Replies: 108
Views: 34666

Re: New distribution system for Jotego cores

Sorry, I don't come here often. I am the owner of my code, the license does not apply to me, as you can imagine. My cores use mostly my own intellectual property, with the exception of some of the CPUs. These CPUs have permissive licenses (not GPL ones). In cases like the M68000 core, which is GPL3, I have expressed permission by the author to use ...
by jotego
Sun Aug 01, 2021 2:01 pm
Forum: Official Addon Boards
Topic: SDRAM Reliability
Replies: 36
Views: 36640

Re: SDRAM Reliability

I received a couple of weeks ago some SDRAM boards using the v2.9 design. This version uses a voltage regulator and has other improvements to prevent some of the issues discussed above. I have not found problems so far and measuring the memory supply voltage, is most of the time around 3.3V, with occasional peaking at ~3.7V and 2.8V. Remember that ...