MiSTer FPGA Forum

Captain FPGA wrote: ↑Thu Jul 01, 2021 2:01 am

followed by iso' on a cotton

What's an iso?

Isopropyl alcohol.

Hmm, intersting if it could be the display itself with the tearing issue.

I would like to see this one, too. I remember it being quite the quarter muncher with its life mechanic.

The latest I have read on this forum is some DOS extenders, at least dos/4gw, iirc, have issues running on ao486. My guess is a similar compatibility issue.

I think the template project may be the place to report this.

https://github.com/MiSTer-devel/Template_MiSTer/issues

Here are video modes from Ralf Brown's Interrupt List:
http://www.ctyme.com/intr/rb-0069.htm

May or may not be applicable to TDL, though.

Sounds like we need some sort of video test. Perhaps 240p test suite and a high speed camera could be used to test 50hz at least? Not sure what might be out there that could run on ao486 to test 70hz.

Yes, but 15Khz CRTs weren't just about scanlines. It might look similar in a youtube video, but in reality image from most VGA monitors will look duller. Wishful thinking, but I would love to see a low lag external shader video processor. Megathread on libretro showing what shaders can do: https://forums.libretro.com/t/please-show-off-what-crt-sha...

venice wrote: ↑Thu May 27, 2021 6:41 pm At first I was thinking about using an e-ink for my project

Nice. E-ink is one of those areas I am "watching this space". Right now e-ink kind of reminds me of the first laptop with a color LCD I tried out in the 90s, though (a blurry mess ).

jca wrote: ↑Tue May 18, 2021 11:40 pm Interesting video:
https://www.youtube.com/watch?v=FkHjG759ABY

Getting some flashbacks to 80s/90s laser light shows here.

Some sort of either a delay or fade-in on core load would be nice. I think modern car stereos do this when you turn on a car, so you do not blast your eardrums out.

There are a fair number of games made with "CGA Composite" support that could make 15khz output useful (albeit with a composite conversion). Moby Games has a list: https://www.mobygames.com/attribute/sheet/attributeId,29/p,4/ I found the Moby Games link from this blog post: http://pcretrogames.blogspot.com/2010/10/cga-composite-video-mode...

You can list out what the USB devices are reporting as on the Mister itself. Here is a script I used that could do this: https://github.com/mcarans/resetusb/ My M30 controllers reported as "Pro Controller". (I used this script when I was trying some things to try to "soft reset" M30 controllers, which did not work, at least for ...

Neat! I had not heard of love2d. I am a big fan of lua since I started using it a few years ago.

I get similar artifacts in ao486 with vga out of the analog io board running at 1680x1050.

It would also be useful if the DE-10 Nano user manual actually had anything at all on the topic of power. But then I guess they are going to just assume you're using the power supply that it came with and no inline switch. Which I'm not because it was an EU power supply and while I could have used an adapter, that's clunky and I had a UK one suita...

Back in win9x days, software like njwin could be used to view cjk text. Who knows if any sort of "overlay" like that would ever be possible.

I ran into this on my second mister since I renamed it to avoid conflicts on my network. I look forward to an update to the scripts.

You may want to report the issue over at github: https://github.com/jotego/jtcps1/issues

I tried the scanline sharp and soft filters but both seem pretty blurry compared to regular 75% scanlines. Do these force interpolation? Running integer scaling on both axis you want to use the regular scanlines. Let’s hope these smart people developing will enable a 100% scanline filter without interpolation. From what I understand, Scandoubler F...

You can test out the polyphase filters with this app: https://github.com/rikard-softgear/PolyphasePreviewer Here are a couple examples of the 100% scanline filter (the regular one, not the "bright" or "soft" ones) - parts of the images, zoomed in 4x. Test image that comes with the app. testimage_scanlines_100_4x.png SF2 select s...

M30 with an USB adapter will have problems with the USB hub but the M30 genesis controller adapter version with a Genesis Daemonbite adapter it works perfectly. Have you used the Genesis Daemonbite with multiple controllers? I have 4x m30 2.4 usb controllers, with the usual issues, and would gladly switch over to the Daemonbite adapter(s) if they ...

I have been running my mister with 500hz polling instead of 1000hz. I had been playing nes contra a lot before and after making that change. I do not have any hard science to back it up, but the controls felt a bit more "consistent" at 500hz polling. I made a modified copy of the fast polling script to allow selecting the polling rate. It...

MiSTer AO486 Core Part 2 – Sharing Files With MiSTerFS
http://www.jamesfmackenzie.com/2021/02/ ... -misterfs/

-N2 wrote: ↑Sat Feb 20, 2021 7:20 pm How do I access the configuration menu for this core? I've tried all the Function keys and that didn't work.

WIN+F12
https://github.com/MiSTer-devel/ao486_MiSTer#note

Also, if negative borders would work, you could even do integer scaling with some cropping. The Space Invaders core seems to handle the borders incorrectly, looks like it handles them the wrong way around. You get severe glitching and I even had to cold reboot the MiSTer. I wanted to try negative borders (if it had been available) for cropping to ...

For curiosity sake, I searched for any sort of audio spec document for toslink. I did not find one, but I did find a rather humorous article instead: https://ayrn.io/toslink-optical-connect ... khz-audio/

To fix the pop as a core changes, the firmware would have to notify the core a second or so before the core change, and the core would have to ramp its audio output back up to maximum before the core change takes place. Just thinking out loud, a core "shutdown" function could be useful, perhaps for other things, too (autosave write-back?).

The scaler filter was really only meant to implement scaling filters that are up to 4 taps like lanczos2 or bicubic interpolation. We're just lucky that you can make a scanline effect by darkening the phases corresponding to the center of the pixel. But there are a few ways to calculate scanlines. (1) Use a gaussian (bell curve) profile for the fi...

SegaSnatcher wrote: ↑Thu Feb 11, 2021 10:23 pm

ash2fpga wrote: ↑Thu Feb 11, 2021 4:00 pm Bob at retrorgb gave his take on this, and brought up the idea of shifting the image up or down.

https://www.retrorgb.com/mister-1080p-5 ... sting.html

This was implemented. The setting is "Crop Offset".

Awesome!