MiSTer Project: Open Source FPGA Gaming

MiSTer Project: Open Source FPGA Gaming


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Disclaimer:
This intro post is by no means an in-depth tutorial. There are MUCH more detailed websites I will be linking to if you want to take a deeper dive into the MiSTer project. Think of this as more of a brochure with a testimonial from a non-expert user and a starting point for questions.

If you'd rather jump into the deep end - start here:
https://github.com/MiSTer-devel/Main_MiSTer/wiki


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### The MiSTer Project: Open Source FPGA Gaming

[URL=https://i.imgur.com/Kq3fqlN.jpg][IMG]https://i.imgur.com/Kq3fqlN.jpg[/IMG][/URL]

### Accurate, Low-Latency, Multi-System Hardware Emulation

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**Table of Contents:**
1. What is it?
2. Why use it?
3. Where do I get one?
4. What do I need?
5. How do I set up the hardware?
6. How do I set up the software?
7. Tips
8. Helpful Links
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### 1. What is it?

  • -

    The MiSTer Project is an open-source low-level hardware emulation platform using the mass produced Terasic DE10-Nano board as it's base. The board uses an Intel System-on-Chip (SoC) that consists of an 800 MHz dual-core ARM Cortex-A9 Hard Processor Unit (HPU) with a Cyclone V Field Programmable Gate Array (FPGA). It also has 1 GB of DDR3 RAM, HDMI, ethernet, a micro SD card slot, and uses a 5v 2amp power supply (about the same as a modern phone charger). It's a great little board for learning how to program FPGAs and combine them with other hardware like Arduinos!

  • -

    A MiSTer usually consists of a hardware IO board, SDRAM expansion module and the software for the DE10-Nano.
    • The SDRAM expansion is the only completely necessary hardware part for the DE10-Nano since it provides memory for the game ROMs and the bigger the games, the more memory they need (for instance NeoGeo games requires the largest 128mb version).
    • The IO board provides cooling, additional audio/video outputs, and some handy buttons if you don't have a modern controller.
    • You can buy the SDRAM and IO boards pre-assembled or in a solder-yourself kit.
    • You will also need a USB OTG adapter or hub to convert the micro USB port to female Type A to plug in your controllers, keyboard, mouse, wifi and bluetooth adapters, or external USB storage (more USB devices might require a seperate power adapter).
    • Finally you install the MiSTer OS onto a micro SD card, copy some cores (e.g. the emulated systems) and games onto it and you're done!

  • -

    Since MiSTer is open-source it's getting better all the time and all developed software is free*. Cores exist for several retro arcade boards, 80s low-end computers, and most 8 and 16 bit home consoles and handhelds (plus the NeoGeo!). Some cores in the works are the for Capcom CPS1 Arcade, PC 486 and the PlayStation (as of August 2020). You can even develop cores and add to the project yourself!

  • *Note: This does not mean the games, BIOS files, or any other copyrighted materials are free and I will NOT be linking to any sources here.
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    ### 2. Why use it?

  • -

    An FPGA is a kind of malleable hardware that allows developers to program the actual chips of a classic computer or console into the Cyclone V's logic gates. This allows for cycle accurate and full-speed hardware emulation for the games to run on, rather than total software emulation which relies entirely on a CPU that is based on clock cycles - which can be quite demanding if you want accuracy and low lag. Games will look, sound, and play as good as you remember them (if not better) using the MiSTer.

  • -

    The "luxury" retro consoles developed by Analog such as the NT Mini, Super NT, Mega Sg, and upcoming Analog Pocket all use FPGA technology. The MiSTer basically operates in a similar fashion, but you can play more than one system and there's no need to jailbreak any firmware to load custom software since everything is already custom and open source. You cannot, however, run your own cartridges by just slamming them into the system. You would need to find a way to dump the ROMs into file on your computer using a device like the Retrode 2, then copy them onto the MiSTer.

  • -

    If you want the most accurate, perfectly scaled, low latency, low wattage, multi-system retro gaming setup possible - the MiSTer is for you! If you're happy with a Raspberry Pi, classic consoles or your gaming PC for emulation then stick with it! The MiSTer is a step beyond the Raspberry Pi for the same amount of electricity, but it certainly cannot do all of the enhancements a modern powerful PC can. It's more for the purist who would be willing to buy the actual consoles and do all the modifications needed to play it on a newer screen (although you can use the MiSTer on old screens too!) but has neither the space nor the time.

  • A better explaination is here: https://github.com/MiSTer-devel/Main_MiSTer/wiki/Why-FPGA
    and here: https://github.com/MiSTer-devel/Main_MiSTer/wiki/Lag-Explained

  • - Downsides? There are a few:

    Only the GBA core supports save states. Most cores now have save states! Also, you can enable cheats for every console core.

    • It‘s a little pricey. A complete MiSTer can range from $200 USD to $250 and beyond depending your customization. (I spent about $300) Premade kits go for about $600 in 2023.

    • The interface is not a looker unless you like lo-fi terminal looking stuff. No boxarts, videos, descriptions or library customization in general.

    • Only basic filters (HQx, sharpening, blur, bilinear, scanlines, LCD grids) so no crazy GPU powered faux glowing CRTs, borders or 3D transformations here. UPDATE: With the right TV, HDR and Shadow Masks you make the MiSTer look like a giant CRT!

    • Setup is a little complicated, but if you’re used to running PC emulators it's pretty simple. Similar difficulty to a Raspberry Pi.

    • Good clean ROMs are required
  • - Fan hacks, translations and mods can work if done properly so you can play stuff like full speed SA-1 modded Gradius and Contra 3 on the SNES! EDIT - SNES has MSU1 CD game compatibility now too!
  • - If a game does not work then you may have to get another version with proper headers or re-patch fan mods yourself.
    • The project is relatively young so there are some notable systems available on other devices that are not on the MiSTer (yet?) such as:
    - Sega Saturn (currently in beta!)
    - Nintendo 64 (in development!)
    - NeoGeo Pocket Color (currently in development!)
    - Several Arcade boards (MAME is still WAY more comprehensive, but it can play Out Run!)
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    ### 3. Where do I get one?

    - Here is a short list of vendors that sell MiSTer parts:
    • (USA) MiSTer Addons - https://misteraddons.com/ (this is where I got my stuff)
    • (UK) MiSTer FPGA - https://misterfpga.co.uk/
    • (USA) zerohimself on Esty: https://www.etsy.com/shop/zerohimself
    - Typically you'll just need the 128 SDRAM module and the MiSTer IO Board from these sellers, but you can also get cases and nicer USB boards for it too.
    - Since the MiSTer consists of various parts, you can either buy each part seperately and save some money or get a completely assembled version if offered by a vendor. If you think you have faulty parts or have any questions about assembly you should contact them.
    - The Terasic DE10-Nano board can be bought from multiple websites such as Amazon (https://www.amzn.com/B07B89YHSB), Terasic's website, or other computer parts distributors. Several vendors that sell MiSTer parts also sell just the DE10-Nano, including the ones above.
    - Just want one completely made for an extra premium? Buy this: https://misteraddons.com/products/mister-bundles
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    ### 4. What do I need?

    --Required-- DE10-Nano Kit (buy from various places like Amazon or a MiSTer vendor)
    • The kit comes with a 5v 2amp AC adapter that uses a Type M barrel plug, standoffs, an 8gb micro SD card and few male-to-male USB cables.

    --Optional - but strongly recommended!-- MiSTer IO board (buy from a MiSTer vendor)
    • There are two versions, an Analog and Digital.
    • These boards connect to the top of the DE10-Nano and provide:
    - (Both) A fan mount to cool the DE10-Nano (fan and heastsink usually included wih the board)
    - (Analog) Analog video VGA connector (VGA DB15 / YPbPr / RGB) with a Sync on Green switch
    - (Both) 3.5mm audio and optical audio port
    - (Digital) 3.5mm audio jack for ADC In (Tape Input for old computers)
    - (Both) Buttons to reset the system, reset the current game, and open the UI menu (handy if your controller does not have a menu button)
    - (Both) External headers for custom case buttons for the above
    - (Both) A second micro SD slot that can be used by certain cores (mostly retro computers like the X68000)
    - (Both) Status LEDs
    • The Analog board is more common (I'm using one) since it allows you to use a CRT monitor or PVM with low latency.
    - VGA to S-Video and composite adapters also exist made by a Antonio Villena: https://www.antoniovillena.es/store/

    --Required-- Cooling
    • A fan and heastink are needed since using MisTer cores will cause the DE10-Nano to run a little hot.
    • Fan must be a size 40x10mm at 5v and an aluminum heatsink must be placed onto the SoC (the big chip that says Cyclone V).
    • Preassmbled MiSTer IO boards will come with these and the fan will be pre-mounted (a Noctua fan is the quietest).

    --Required-- Micro SD card
    • I use a 64gb one. Games on CDs can be large but 16 or 32gb should be enough for large cartridge libraries.
    - Games are typically uncompressed and require proper filename extensions to be recognized by the cores.

    --Required-- A computer with an SD card slot
    • The MiSTer OS can be installed onto the micro SD card using Windows, Mac, or Linux.
    - See part 5 for additional software setup information.

    --Required-- SDRAM Module (buy from a MiSTer vendor)
    • 32mb minimum - I'd go with the 128mb version for full game support, like with the NeoGeo.

    --Required-- Micro USB Adapter for input devices
    • A simple OTG cable will work fine or you can get a low-power USB Hub. I got this one: https://www.amzn.com/B01JL837X8
    • You can also get one of the many adapters from the vendors above to use an acutal controller for a console.
    • There are more hardcore USB boards and bridges available as well that mount to the bottom such as the BlisSTer.

    --Required-- A keyboard and controller(s)
    • You will need a keyboard for initial setup and to map your controller.
    • Common controllers with USB connectors should work fine like DualShock 4, Xbox One pad, or most 8bitdo controllers.
    • Here is a google doc of tested controllers with their latencies: https://t.co/DUi2yV0GSU?amp=1

    --Required-- AV cables
    • You can just use an HDMI 1.4 or better cable to keep things simple (not included) if you have a modern TV.
    • If you get the IO Board you can use a VGA cable or an adapter*.
    - *Note: The system outputs at 720p 60hz by default, but you can select up to 4 custom config files with different resolutions and refresh rates.
    - You can use the HDMI and VGA outputs simultaneously.
    • If you get the IO Board and use just the VGA, a 3.5mm stereo audio cable or optical audio cable will be needed for sound.

    --Optional-- Case
    • The DE10-Nano includes all needed stand-offs and rubber feet if you like raw boards just hanging out.
    • The vendors listed above sell MiSTer cases
    • There are also various 3rd party sellers with 3D printed plates (or print your own if you can find the files).
    • Or you can get creative and mount the MiSTer into a re-purposed PC case. Just get some motherboard screws and drill some holes!
    - I'm using this mini-ITX case (https://www.amzn.com/B00DL4BMMC). The front button and LEDs don't work (yet) but I just got an adapter for the front USB ports.

    --Optional-- Power Switch
    • To turn the system on or off, you basically just have to plug and unplug it from the wall.
    • You can get inline Type M cables or adapters with a toggle switch, but be cautious if they reduce the power throughput.
    • Another option is getting a Single Port Power Adapter switch for the AC Adapter (my solution) or just use a power strip.
    • There are ways to solder a PC case switch to the power input using a "Momentary to Latching Switch Adapter" or through the GPIO pins (if you're knowledgeable in the subject unlike me).

    --Required-- A phillips head screwdriver

    Miscellaneous (depending on your needs)
    • PC case screws and pads
    • Extention cables
    • Cable adapters
    • External hard drives or USB storage for games
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    ### 5. How do I set up the hardware?

  • - Assuming you have the following parts...
    • DE10-Nano board
    • MiSTer IO board
    • SDRAM module
    • USB OTG adapter
    • USB keyboard
    • USB game controller
    • HDMI cable
    • A phillips head screwdriver
    the MiSTer is assembled as such:
  • 1. Remove the clear acrylic plate from the top of the DE10-Nano and set the 4 screws aside.
  • 2. Stick the heatsink onto the Cyclone V SoC on the DE10-Nano. It's the largest chip on the board.
  • 3. Carefully insert the SDRAM module into the DE10-Nano GPIO 0 pins (above the SoC). There should be a label that says "This side faces outward" on the module.
  • 4. Carefully insert the MiSTer IO board into the DE10-Nano GPIO 1 pins. The SDRAM module will fit into the cutaway on the IO board.
  • 5. Fasten the 4 screws from step 1 into the corners of the IO board to secure everything.
  • 6. Plug in the USB OTG adapter/hub into the DE10-Nano's micro USB port.
  • 7. Plug in your keyboard.
  • 8. Plug in the HDMI cable to the MiSTer and the TV.
  • 9. Setup the micro SD card in Part 6 below, and then plug it into the DE10-Nano SD card slot (NOT the slot on the IO board!)
  • 10. Plug in the AC adapter and let the micro SD card finish it's initial configuration.

  • After you've got the micro SD card setup you can copy over some games (see Part 6), map your controller from the main menu, and start playing!
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    ### 6. How do I set up the software?

    • Complete instructions can be found here: https://github.com/MiSTer-devel/Main_MiSTer/wiki/Setup-Guide
    • Use the "Mr. Fusion" method on that page if you want a simple full featured installation with handy scripts.
    - You can also go here: https://github.com/MiSTer-devel/mr-fusion
    - Note: the MiSTer file system uses a strict directory structure and file extensions or the cores and games won't be found.
    • You can use the vanilla image if you'd prefer to keep just a few cores on your installation. Just download and copy over the cores you want.
    - Additional information for installation can be found on each core's Github page below including information on which BIOS files might be needed.
    - Link to the main wiki page: https://github.com/MiSTer-devel/Main_MiSTer/wiki.
    • Run the micro SD card on the MiSTer so it can finish configuration.
    • After running the micro SD card once on the MiSTer you can then copy over your games
    - Place your ROMs into the appropriate folder under the /games directory (e.g. /games/NES)
    - The ROMS must use a a valid file extension for the core to see them and be uncompressed unless otherwise noted.
    • If your MiSTer is on a network, you can run the updater scripts from the MiSTer menu to get the latest cores and system files.
    • You can also use updater scripts on the computer and copy the new files onto the SD card manually if you don't have the MiSTer on a network.
    • If you are using the IO board and want custom resolutions over VGA you can make .ini files that use custom settings.
    - See this page for more info: https://github.com/MiSTer-devel/Main_MiSTer/wiki/Configuration-Files
    - See Section 7 Tips for more info on proper video output.
    • To run a core simply select it from the main menu.
    • After it loads you can select a ROM from the Core menu or change the core's settings.
    • Press left or right on the main menu to switch between the Misc. Options menu, Core menu, and System menu.
    - Remember to save the settings in the core's System menu by pressing right.
    • You can change cores from the menu or reboot the system entirely.
    • If you want to change change mister.ini files (e.g. mister_alt_1.ini etc.) for different settings like resolution that can be done from the Misc. Options menu by pressing left.
    • You might also want to change your controller mappings per core in the system menu, such as with a 6-button controller like a Saturn or Genesis pad.
    • Each core might also have specific hardware options like enabling the Genesis and TurboGrafx16 6-button pads or the SNES mouse.
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    ### 7. Tips

    • Use the MiSTer main github wiki: https://github.com/MiSTer-devel/Main_MiSTer/wiki
    - It is by far the most comprehensive source to use and should be the starting point for all of your questions
    • Use an external video filter: https://github.com/MiSTer-devel/Main_MiSTer/wiki/HDMI-Scaler-Custom-Filter-Coefficients#introduction
    - Since the MiSTer is upscaling a 240p image to 720p the pixels and stretched in ways that can cause unevenness and shimmering.
    - I typically use the Interpolation (Sharp) filter for the cleanest image possible, but the scanlines and LCD grids can be fun too!
    - There are some scandoubler effects (under Video settings) for scanlines but I would not recommend using them because they are not scaled properly
    - A good example game to use is Mega Man on the NES. His health bar should have even lines.
    • Be mindful of your setup
    - Read about input and display latency to determine if you can reduce lab in some way.
    - Make sure the system is getting adequate power by reducing the number of external devices. A powered USB might be needed otherewise.
    - Read more about 240p image scaling and modern displays to make the games look correct. 720p is good because it's a perfect 3x scale.
    • Be mindful of your content
    - Read each core's github information page before using it.
    - This is especially true for Arcade boards that use mapping files.
    - Use the Mr. Fusion* image and updater scripts** to make sure the system file structure is correct.
    *https://github.com/MiSTer-devel/mr-fusion/releases
    **https://github.com/MiSTer-devel/Updater_script_MiSTer
    - If a game is not working make sure it's the right format or is a clean dump with good headers.
    - Certain compressed images, such as *.chd files for Sega CD games will not work and they must be in *.bin *.cue format.
    - Again - Read each core's github information page before using it.
    • Save your game!
    - Set the core's Backup RAM Autosave setting to ON to make sure your games actually save their progress if they have that feature.
    - Only the GBA core supports save states at the moment, but if you really want to win you can use Game Genie like cheats added by an updater script and accessed from the core's menu.
    • Don't be afraid to tweak the settings
    - Make backups of your custom .ini config files and try out different settings to make the games look how you want them on the displays you are using.
    - Try to use either the native resolution of the display or an evenly scaled integer resolution of 240p like 960p, 720p, or 480p so pixels look correct.
    - 1080p should look fine too (especially on a 4k TV) and there are presets in the *.ini for common resolutions mentioned
    - If you're using VGA output then definitely check out the configuration files on Github (see below) for proper scaling.
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    ### 8. Helpful Links

    See Section 3 for vendors to buy MiSTer parts.
    • MiSTer main Github wiki: https://github.com/MiSTer-devel/Main_MiSTer/wiki
    • Configuration file Github page: https://github.com/MiSTer-devel/Main_MiSTer/wiki/Configuration-Files
    • MiSTer updater scripts: https://github.com/MiSTer-devel/Updater_script_MiSTer
    • MiSTer forum: https://misterfpga.org/
    • MiSTer on reddit: https://www.reddit.com/r/MiSTerProject/
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    Hope this thread helps people out and gives a spot to talk about new developments! Here's what my setup looks like:





    https://twitter.com/nullobject/status/1290244049799004160

    I needa make me one of these one day haha. I just fear when I do I'll be like “great this is awesome!” and never touch it again.

    just like my retropie lol

    Been following this casually. Curious to hear your personal experience.

    @p3ters#5225 I thought the same and almost went with a newer Pi 4, but the MiSTer is about as close to authentic as you can get for older consoles that rely heavily on low latency. The games just feel better since there is almost no lag. I‘ve got a pretty decent PC that does a good job with DS, 3DS, N64, Dreamcast, PSP, PS2, and Wii emulation. But for older stuff it’s nice to have a low power solution that's accurate and low latency that I can just flip on and off without needing to login or update other software. Having it just sitting near my desk helps stay engaged with it too! :smile:

    @Blrb#5226 it's been pretty great and if you use the Mr. Fusion image and the updater scripts setup is pretty simple since they include all of the community open-source stuff. You just need to add the ROMs, a few BIOS files for systems that require it, setup your config .ini file if you want something other than 720p and you're done! Every controller I've tried works and you can even use any old USB mouse for Mario Paint. Honestly - the thing I struggled most with was trying to find, then mount everything into a little case!

    I‘ve been very close to buying everything to build a MiSTer on multiple occasions now. I’m kind of waiting to see what the custom core support for the Analogue Pocket looks like first. That NeoGeo core for the MiSTer is looking mighty fine these days though, and I'm always looking for better ways to play Neo Turf Masters…

    @badatgaems#5253 Indeed - I was waiting too but for almost the same amount of money you get much more capability (for both hardware and software) and community support and MiSTers will never be rare (as long people keep buying them - lol). Plus I rarely travel and if I did I would take a laptop plus a Switch and/or 3DS anyways.

    As for the NeoGeo support it's pretty much spot on from what I can tell, you just need the big 128mb SDRAM module. Full MVS and AES modes and if you use the UNI 4.0 bios you can change all the dip settings like region, number of continues and violence (just press A+B+C on the bios screen) . Plays later stuff Garou and Sengoku 3 perfectly too.

    @copySave#5256 What is controller support like? How easy is it to hotswap and bind buttons? I would love to take something like the MiSTer to FGC events (one day when those can happen again) so allowing easier plug and play would be ideal.

    @badatgaems#5258 It has pretty robust compatibility. Here is a google doc of tested controllers with their latencies: https://t.co/DUi2yV0GSU?amp=1 (I use a wired HORI FC4 with a 4 port USB OTG hub).

    To remap buttons just press the menu button on the IO board or controller (I have mine mapped to the PS button) and then select "Define Buttons" and it will prompt you for each button used by the current core (or per game!) and it will save the config. So if you are using a Saturn style pad you could map all 6 face buttons for a Genesis/ MegaDrive and if you switch to the SNES core it will keep the 4 face buttons with the shoulder buttons (and I guess you could map select to C or Z). And if you want to play SNES 6 button fighters like TMNT, you could map all the buttons to the face just for that game.

    People have also made adapters to use actual old controllers. Check out Bliss-box for more about that: https://bliss-box.net/store/Bliss-Box-Cable-p65613202. If you want absolute lowest latency for competitive fighting you can use a SNAC adapter with a CRT over VGA: https://misteraddons.com/products/serial-native-accessory-converter-snac

    Here's some more info about the MisTer and lag: https://github.com/MiSTer-devel/Main_MiSTer/wiki/Lag-Explained

    @p3ters#5225 yeah…im 100% sure that's what I would do!

    Oh cool, you can even get in there with SSH, FTP and Samba. Can you load games via network? So I could keep all my games on my NAS? Looks like I can mount with cifs like regular Linux?

    @Blrb#5291 Yep looks like it from this reddit thread: https://www.reddit.com/r/fpgagaming/comments/f5n557/mister_fpga_cifs_mount_help_needed/

    Really need to setup a Samba share on my home network instead of buying SD cards when they're on sale 😆

    Good ol Jeff at Giant Bomb messed around with the 486 core a couple days ago. Good demo of what it can do at the moment. Was recently updated to use L2 cache:

    https://youtu.be/lkzDEJS8EYo?t=235

    Hey it's my MiSTer thread!

    A couple notable updates:

    This individual has the early stages of the PlayStation core running:
    https://twitter.com/Laxer3A/status/1341853428734160897

    and DoDonpachi has been released:
    https://www.reddit.com/r/MiSTerProject/comments/kwdva3/dodonpachi_public_release/
    https://www.youtube.com/watch?v=ARtxczTPazI

    Edit: here's another link to the updater script for easy setup (except arcade). Just drop in your games and bios' and you're good to go!
    https://github.com/MiSTer-devel/Updater_script_MiSTer

    This is glorious! I‘m always-be-bombing but it’s sooo satisfying.

    [URL=https://i.imgur.com/y4KNBGx.jpg][IMG]https://i.imgur.com/y4KNBGxh.jpg[/IMG][/URL]

    Mister is such a cyberpunky console. People are wrangling cycle perfect game machines on to a literal industrial equipment used for things like missiles and high frequency trading.

    I just got one of these and while I am blown away by the PC Engine CD core, and the Neo Geo core. What really amazed me was the classic computer cores. I have never owned an Amiga and now I can sample all of its games, same with the MSX and C64. And for pure nostalgia I have been diving into some choice elementary school Apple II games. There is a lot of set up and tinkering to get the machine up and running correctly, but once you do…

    [URL=https://i.imgur.com/sBwe1RA.jpg][IMG]https://i.imgur.com/sBwe1RA.jpg[/IMG][/URL]

    Saturn core by srg320 (Sergey Dvodnenko). Super exciting.

    https://twitter.com/srg320_/status/1356653868759871493?s=20
    https://twitter.com/srg320_/status/1356654120313184276?s=20

    I finally ordered mine this past weekend! A bit of snow is holding up delivery a little later than expected but I've got my SD card formatted and a 2.4G 8bitdo M30 ready to party.

    dang, the progress on this thing is crazy. seems like new cores are sprouting up all the time. i think i might invest, and i‘ll be following this guide! one question i had though- how does saving stuff like arcade core scores work? does the functionality exist? i’m no hardware guy, but if they‘re replicating the original hardware to a t, then scores would be wiped on shut down or when you switch games? it’s not a deal breaker for me either way. i was just curious.