MiSTer FPGA Forum

thera34 wrote: ↑Thu Apr 01, 2021 5:23 pm Yes, @mhartman, the ultimate goal is to port IBM 5100, thus rendering John Titor obsolete

... or is it time travel?

I've come to conclude that it is a secret government project designed to have the MiSTer community think that they are building cores to entertain themselves. The actual purpose is to have vintage computers recreated in FPGA to ensure that the government(s) can access the multitude of files that they have stored in the national archives. It turns o...

Weird. Isn’t happening for me. I run audio through an HDMI to VGA adapter.

jimmystones wrote: ↑Sun Mar 21, 2021 7:47 pm Donkey Kong now has high score save/load and pause (and by extension so does the dodgy Donkey Kong 3 bootleg and Radar Scope), enjoy

Thanks again for doing this. It made my day today!

akerasi wrote: ↑Tue Mar 23, 2021 5:36 pm Jotego has said in the past that he'd get to Speed Rumbler at some point, which makes sense as he's done many similar Capcom games. No idea about Rastan, though.

That would be cool. I forgot that SR is a Capcom title. I’d love to see that one as I spent many a quarter on it back in the day.

jimmystones wrote: ↑Sun Mar 21, 2021 7:47 pm Donkey Kong now has high score save/load and pause (and by extension so does the dodgy Donkey Kong 3 bootleg and Radar Scope), enjoy

You rock my friend. Thank you!

These are two that would be a lot of fun on MiSTer.

jimmystones wrote: ↑Thu Mar 18, 2021 6:51 am Highscore and pause support is in for Time Pilot - pause is a bit ugly as the cloud layers don't stay in line, but functionally it works so I'll have to come back later and work that one out.

Oh and Pengo is done too

You rock. Thank you!! BTW, I would love to see Donkey Kong high score support if you ever find the time.

Here’s mine. It’s a big “case”, but it is a lot of fun!

Thanks for your great work on this core! One thing that would be awesome on Centipede for a future release is screen flip as Centipede was one of those PCBs that displays everything upside down in relation to most popular games of that era. I'm not the original author, but I have been fixing lots of bugs. I'm working on adding screen flip support....

retrodroid wrote: ↑Thu Mar 11, 2021 8:10 pm

mhartman wrote: ↑Tue Feb 16, 2021 8:45 pm

jca wrote: ↑Tue Feb 16, 2021 5:54 pm

Are you using a USB drive?

No, just the SD card.

Same issue here with my arcade monitor. I opened a new issue for this on the github site.

Try loading and using the update_all script. That fixed it (and several others) for me. The main update script seems to be broken.

Thanks for your great work on this core! One thing that would be awesome on Centipede for a future release is screen flip as Centipede was one of those PCBs that displays everything upside down in relation to most popular games of that era.

Hi all, Regarding the Galaga explosion, I had a conversation with a friend of mine who is an expert in this area. Here is a summary of his thoughts: The 54XX custom chip outputs digital white noise, usually that would be a stream of 0's and 1's randomly distributed (https://en.wikipedia.org/wiki/White_noise). However, the 54xx outputs 4bit values, ...

Coin, P1 and P2 are all separate and work great on my cab.

I wouldn’t worry about it. HDMI works great for LCDs. I use a cheap HDMI to VGA converter to hook my MiSTer up to a CRT in my arcade cabinet, which works great (using a J-Pac and sound amp). Make sure you get a HDMI to VGA converter with sound out as well.

It would be great if you could post some samples here. Thank you. Cool. Here are all of the Galaga sounds sampled directly from an original Midway Galaga PCB (if you boot with the test switch on, you can play the sounds individually with the fire button). I used PCB speaker out to a speaker-to-line converter into a recording interface, so this is ...

alanswx wrote: ↑Fri Feb 19, 2021 8:45 pm I am sure it needs to be fixed. Just not copied from mame necessarily.

Agreed. If someone has the know how to implement it, I’m happy to send them a sample directly from one or two of my original Galaga PCBs.

Please watch YouTube videos of the original games. Also some of these boards shipped with different value parts throughout their life and sounded different depending on the board. See galaxian. I’ve owned several Galagas over the years (and even more PCBs). The explosion on mister is nothing like any of the originals. Again, I appreciate the work ...

If anyone needs a sample from an original Galaga board let me know. I love the Galaga version on MiSTer, but the explosion is so off from the original (it is a bit disconcerting). I would be awesome to get it corrected.

jca wrote: ↑Tue Feb 16, 2021 5:54 pm

mhartman wrote: ↑Tue Feb 16, 2021 5:51 pm I’ve got the same issue. Everything just boots to a black screen and no activity (MISTER menu works though). I’m using a CRT arcade monitor that works great for most arcade cores. Any ideas? Thanks!

Are you using a USB drive?

No, just the SD card.

I am having problems with this core. Upon loading nothing happens, the screen stays black. If I go in the OSD and switch the settings from Horizontal to Vertical and vice-versa there is some activity on the screen: - When switching to horizontal a band of pixels appears briefly at the bottom of the screen, its height is about 1cm and its width cor...

The core is still relying on audio samples, as did MAME prior to 2007. Open the .mra files and you'll see them encoded in there. Till somebody figures out a way to simulate the analogue audio hardware like modern versions of MAME do, we're stuck with those inaccurate sound effects. Thanks for the info. Does that include the music / tunes as well? ...

shertz wrote: ↑Sun Jan 31, 2021 2:15 am Sounds are still not right.

Agreed - I just checked it out. I would pay to have the sounds fixed. I plays really close to my original PCB, but the sounds are bothersome.

What was changed with the DK core?

Nice! One of the best games ever. I’ve got a full size Multi-Williams arcade and it stays on Robotron 90% of the time.

How accurate are the sound effects in MAME? Old versions of MAME (and MAME 2003) use samples to get around the analogue circuitry, but modern versions have some kind of simulation/emulation going on. MAME is accurate. I’m not sure if embedded the samples or are generating them some other way. On Mister, the music/tune rhythms are off, which is str...

I don’t recall seeing the option in Mister. That being said, I have a hard time getting past the sound/music issues in the Mister version of DK.

Try linking the boot In the ini file to the *.rbf file that you want to load. I’m pretty sure that’s how I do it.

I use this amp in my arcade cab: https://www.amazon.com/gp/aw/d/B01MYTZGYM

It’s pretty rare to have a CRT with HDMI. Pretty cool. It is hardware dependent based on the TV’s preferred frequency, but I’d start with HDMI. I believe that what will really matter is what frequency the TV likes vs. the native frequency of the core. Any conversions between the two likely will cause lag.