MiSTer FPGA Forum

Newsdee

flynnsbit wrote: ↑Thu Nov 30, 2023 5:11 pm
Out of anyone on the planet. I know this pain.

The ExoDOS comverter was quite useful, but I suppose automating all of it is more work than a fresh install?

Newsdee

Sadly it doesn't work with my TV

Newsdee

Would it be possible to support 3440 x 720 resolutions? What modeline and filter should I use for that? (it would need 2x scanlines) The problem is that increasing the max horizontal resolution from 2048 to 4096 can cause timing issues and compilation failures due to resource limitations. I addressed these issues by removing features, but that woul...

Newsdee

I'd like to do that, but there's a good deal of core-specific logic in main that looks for an exact name match, to the extent that changing the name can completely break the core. For instance, the PSX core can't boot games if it isn't named "PSX". You're absolutely right, I forgot about those! They are needed by most cores with a CD at ...

Newsdee

Interesting. So this allows geting 4K by letting the TV do the vertical scandoubling (technically quadrupling) This should work great for horizontal scrolling games, they often suffer from shimmering if they are not stretched properly. Small suggestion, could you change the name of the core in config string (e.g. NES4k) so that settings can be save...

Newsdee

Can anyone confirm its functionality with mister (or mame). Thanks! Yes it works after a few tweaks. The controller is recognized by default by MiSTer only with the trackball. You will need to change some INI settings to get the spinner to work as well. So far I tried it successfully with: Apple II core (set "Paddle as Analog" to "X...

Newsdee

I'd say its worth preserving what you can, especially if nothing can be found online already.

Newsdee

For MADrigal's simulators, best to use a RaspberryPi with RetroPie. The DE-10 Nano is not a good substitute for a recent RPi, and the installation will be streamlined for you. Anything else will require work to port and that same time and effort could be put towards more suitable alternatives such as: Emulate the game with the proper CPU and ROM da...

Newsdee

You had the Ti83/84 line, the Ti89 was more powerful. And then there were also good games in grayscale for the HP48/49... all of those would be gteat to have as cores

Newsdee

bbond007 wrote: ↑Mon Oct 23, 2023 8:57 pm
It comes from the MiST project which is named for Amiga/ST

Yep and Ter for Terasic (aMIga ST TERasic)

Newsdee

Just call it MiSTer FPGA...

Newsdee

PikWik wrote: ↑Tue Oct 17, 2023 1:03 am
if this is openFPGA, and people get a bunch of MiSTer cores ported over

It won't be supported, according to the small print (I missed it at first). Same as what was said for the Duo.

Newsdee

I have a USB3 switch... i.e. it does not have viseo. But it works fine. I use a separate switch for VGA in reverse (i.e. single source from MiSter into either a monitor or a capture card)

Newsdee

I've used the shapehifter image with the Minimig core a while back, and it runs great at 1080p

Newsdee

There are some cores that overclock (e.g. SNES with SuperFX) or that allow removing some hardware limitations (hardware sprite flickering).
So yes, there are some cases where an FPGA core can enhance the original.

Newsdee

I know a way to use the MiSTer scaler, but it's hacky and I do not recommend it unless it is for a custom builds It introduces a frame of latency as it relies on the MiSTer framebuffer. I don't care if I use it for an Apple II or 2600 cores, but it would be problematic for some other systems. Aspect ratio is also hard to get right. I didn't bother ...

Newsdee

HarborSeal wrote: ↑Sun Oct 01, 2023 4:13 pm
We don't have BlissBox or the GamerPro Advanced here in the USA apparently.

Have you checked their store? http://bliss-box.net
I thought it was a US Company.

Newsdee

SegaMan wrote: ↑Tue Sep 26, 2023 7:20 pm
8bitdo Ultimate via 2.4Ghz dongle ... no up/down on analog Stick.

Try remapping the controller again in the startup menu core, then again in the n64 core.

I had the exact same problem with another controller (USB adapter with the original N64 pad). I figure the Y axis got mapped wrong somehow.

Newsdee

Even hardware revisions of OG consoles and computers were not cycle or behavior accurate to their predecessors Famous examples are the SiD chip revisions (the original ASIC was never remade exactly), 8088 and x86 clone CPUs, Megadrive/Genesis sound chips, etc. This is why projects like Artemio's MDFourier are important. It's an analysis tool compar...

Newsdee

I also thought up the silly notion that what i have here is a thing that allows me to get into electronics and breadboarding without the need to spend my meagre funds on components, expensive soldering kits and leftover throwaway garbage, 6502 and other chips and can just try to create virtual ghosts inthere (once i wrap my head around it a little...

Newsdee

Fair enough. I notice the aurhor of MCL86 cleverly mentions the CPU is "cycle accurate but nof cycle exact" :mrgreen: But then I wonder how many emulators are cycle exact for the same CPU (if any). The truth often comes in shades of gray though. Would it be fair to say that cycle accuracy is a spectrum? With that metric, are FPGA cores in...

Newsdee

The PCXT core is cycle accurate in its 4.77 MHz, 7.16 MHz, and 9.54 MHz modes, but is no longer cycle accurate at maximum speed (AT like performance).

Newsdee

For most software emulation means running on a general purpose computer system, with hardware shared between processes. The main issue I have with software emulation is commercial devices. Most of them are "good enough" setups, with often bad upscaling and lag, running on cheap phone SoC boards barely suited for the task. So in a commerc...

Newsdee

What's missing from the "debate" (which is really marketing hype) is to clearly define what is being measured, and what do we mean by "better". FPGAs are much better at having high throughput of signals (data transmission/conversion). That makes it great for replicating low level electronics, interfacing with CRTs, original peri...

Newsdee

The term is thrown around but doesnt mean that much when talking of an overall system. Maybe the disk drive is not cycle accurate, but the CPU may be. That means some niche uses may not work but all games and demos work perfeclty anyway. To me one thing that that matters is how close we are of accuracy for the power consumed. FPGAs beat hands down ...

Newsdee

What are you trying to do? This may help: https://github.com/MiSTer-devel/Gamecontrollerdb_MiSTer There is a central configuration for each VID:PID (which this db helps handle by default) and then an option to map per core. Cores can specify default mappings based on central config. The .map file format is very simple (its just a binary dump), I fo...

Newsdee

What do you want to do exactly? You can use MGL files to customize a core name and change default values without recompiling. For example you can have an "Amiga 500" and "Amiga 1200" MGL files, both uaing rhe same exact RBF for Minimig, but starting with differemt options, and saving settings separately. https://mister-devel.git...

Newsdee

If that means direction keys already mapped, then 4 is not ideal but way better than nothing. It could work well for a lot of games, barring some key-heavy ones such as flight sims (even with these it'd shorten the time it takes to remap everything though). Just to clarify, this approach does not use the MiSTer feature at all, but instead maps to ...

Newsdee

10 print pdl(0),pdl(1): goto 10 This will let you see the range of values while the joystick is moved around. If all you see is 255 then that's why your character just moves right. This, exactly. Apple II joysticks have physical knobs to help center them, and the core seems to be sligthtly off center by default. This can cause some controllers tk ...

Newsdee

The C64 (and Mini) / The VIC-20 have functionality to map keys to controller buttons per game. They can only map a preset collection of keys though. It is really handy though and used with a lot of games. That's because they have a fixed list of games with predefined settings. As a comparison, on MiSTer you could use MGL files to boot each core pr...

MiSTer FPGA Forum

Search found 830 matches

Re: Individually Bootable VHDs for Each Game

Re: Forked cores with 4K horizontal resolution support

Re: Forked cores with 4K horizontal resolution support

Re: Forked cores with 4K horizontal resolution support

Re: Forked cores with 4K horizontal resolution support

Re: Taito Egret II Mini Rollerball/Spinner Controller

Re: Electronic Games/Electronic Board Games + MADrigal Simulators

Re: Electronic Games/Electronic Board Games + MADrigal Simulators

Re: Ti Calculators? (Ti 83/84)

Re: My only minor side to the MiSTer

Re: My only minor side to the MiSTer

Re: Analogue N64 Product

Re: KVM Swtiches

Re: So What Happened in 2023?

Re: The “Cycle Accurate” Conundrum and Is There a List of Cores That Are?

Re: How Difficult Is It to Add Vertical Flip to a Core?

Re: N64 Core

Re: N64 Core

Re: The “Cycle Accurate” Conundrum and Is There a List of Cores That Are?

Re: The “Cycle Accurate” Conundrum and Is There a List of Cores That Are?

Re: The “Cycle Accurate” Conundrum and Is There a List of Cores That Are?

Re: The “Cycle Accurate” Conundrum and Is There a List of Cores That Are?

Re: The “Cycle Accurate” Conundrum and Is There a List of Cores That Are?

Re: The “Cycle Accurate” Conundrum and Is There a List of Cores That Are?

Re: The “Cycle Accurate” Conundrum and Is There a List of Cores That Are?

Re: Edit .map Files?

Re: RBF File Structure

Re: Mapping Keyboard to Gamepad?

Re: Apple II Core

Re: Mapping Keyboard to Gamepad?