MiSTer FPGA Forum

Joystick is weird on the Apple // series. It is 100% analogue, and uses a timing-dependent read routine to read how long a capacitor takes to go to zero after pulsing it with a charge. (this is discussed in Jim Sather's book, among other places) -- anyway another factor in analog joystick support is that many games have some kind of manual or autom...

Thanks for this wonderful core! Having grown up and learning to program on the Apple //e, it makes me happy to see that there's project like this that allow the software to remain accessible to folks today. If it helps, here are some notes on implementing Apple emulation features in no particular order (caveat: I authored a cycle-accurate Apple //e...

hi there! I'm the owner of that repo with the hardware description of the Another World VM for FPGAs. It is not in a fully working state, as I am not super skilled in FPGA development. But I was able to get some good results for byte-code execution. The video buffer is not yet properly working and there's no implementation of the polygon rendering...

I suppose a one big multi-demo vhd would be a nice thing to have. I'm not that interested in ST to download them one-by-one, I'd probably just grab some disk collection instead... I already thougt that :) Well, no problem...any favorites? Checkpoint: "Thunderdome" (their Second Reality 2013 is really nice too) Synergy: "Megademo&quo...

I found that Future Wars ran just a bit too fast, making a few timing-precise parts of the game nearly impossible. I had to switch over to the Atari ST version to get through the whole game.

25 seconds -- Yeah that sounds like the duration of time required for the game to finish loading (disk activity light is on, etc.) I'm not sure why I'm having trouble with this then but I do appreciate you took the time to check if it _can_ work. I updated the linux and mister core versions to match what you had but still dice. I am not sure how it...

Thanks @kathleen for confirming. I have not tried TOS 1.00 but I don't know that the ROM version would matter too much. What did you use to start the game, the joystick button? Do you have swap joysticks enabled or no? Any other configuration/mappings? Again, thanks! :D Don't want to have to stoop so low that I play the Amiga version... :twisted: -...

Also worth noting, I have tried this with the Automation 411 disk version as well as the 3gb HDD version. Both load to the title screen but do not allow starting the game. Have also tried TOS1.02 (with disk, 1meg), TOS1.06 (with disk, 1mb) and then TOS2.06/STE/2MB for HDD version. No dice. Also renamed trashcan to Amiga just in case that would help...

Problem 1) A lot of times reset by itself doesn't seem to resolve issues after a crash, usually I still see garbage and bombs on the screen. This could be just how the platform is but wasn't sure if that is really the case since I only used a real ST briefly in 7th grade. Problem 2) Cold boot from the OSD does what it's supposed to do, but it also ...

It's really weird, I know you are supposed to be able to start the game by pressing the joystick button. However, nothing happens and it just keeps playing the intro music on the title screen with the credits screen alternating. I know the button mapping isn't weird because I've used it on other games with the same configuration. Am I missing somet...

Every time I run it, the cat acts weird for about ten minutes. I'm just not going to ask questions.

Meanwhile I can't wait to see if the recent Moto 68k bugfixes might benefit other non-JT cores. Time will tell. All I can say is it's really exciting to see you devs rock this party like a hurricane. Send me updates over 110-baaud smoke signals, I have no rights to complain either way.

I can say with certainty that folks like Byuu and Blargg inspired a lot of the work I did on making color and cycle-accurate emulation a thing in my Apple // emulation. I can't really take any credit for the same features in other Apple emulators, nor would I deserve it, but I feel like the ongoing conversation among myself and like-minded authors ...

https://kotaku.com/the-brilliant-snes-e ... 1847182851

Just remember folks, we're all people. We all are equally capable of love, hatred, joy, and pain. We're all trapped together on this blue marble hurtling through the cosmos. Please be kind.

-B

I think when devs kinda just say "just learn to code or shuttup" (not saying what badvision said is this, but others do say this in varying ways), it's not realistic and it shuts down the potential of useful feedback being provided. Well no, I wasn't implying that. Programming is absolutely NOT for everyone. Then again being a good QA te...

Update_All has a configuration screen and you can disable parts of it from running if you need to, so it's opt-in. As for this change I welcome it. Consider that Jotego has already made a lot of amazing cores public and done a lot of collaboration to improve the state-of-art for MiSTer in general (especially his memory tester!) CPS-II is beta today...

First of all, I have to say it was a total thrill getting a chance to finally beat this one and it was a lot of fun. So massive kudos for a great core! :D That being said, I've outdone myself at breaking things while using this core in the process. 1) Unless I set a max framerate cap, e.g. 50, I get blinking on the display right after booting up th...

I've run into this and solved it (kind of) by forcing the refresh rate to 50hz. Can you explain me how to do it? Sure thing! For my video modes I specify 50hz modes, forcing the NTSC mode to match the PAL mode. This probably doesn't do much but setting refresh_max to 50 should do it: video_mode=9 video_mode_ntsc=9 video_mode_pal=9 refresh_min=30 r...

Turbo gives a good FPS boost to this demo: http://www.pouet.net/prod.php?which=24571

Wow, so the settings I tried and failed with worked for you? Well I'm glad the effort wasn't a complete waste then. I suppose it helps I was assuming (and it seems incorrectly) that my generic god-knows-what screen was using the same hardware as the Adafruit one. Unfortunately the driver board is glued to the screen and I don't feel like trying to ...

Would be awesome to see more tech demos possible thanks to these awesome cores. For example the Genesis core is able to handle probably the most complex tech demo ever made for mega-drive (Triton's "Overdrive II"), even using undocumented video registers and all other kinds of crazy tricks. It's very exciting to see how better tools means...

Question: Does it work if you subject it to random rewind/fast forward? I've had some games (Aria of Sorrow mainly) freeze up or glitch using that feature. Then again, it could be my bargin-bin 32mb sim purchased from ali express. But in the event that there is a bug in the state handling of rewind/ff it might not hurt to give it a try.

I understand that a game not working well is off-putting but when I read posts like this, as an emulation author, it seems very entitled and ungrateful to complain about your issue without acknowledging the hard work that people did. Only hearing a complaint about an issue with [insert your favorite game] and why that must mean their work was all f...

Unfortunately no, I hit a dead-end. But I wanted to at least post my partial progress in case someone with a better idea can draw some ideas from it. I feel like there's something to that negative hsync that is critical to the whole thing working, and I'm not sure if that is supported or not.

I've run into this and solved it (kind of) by forcing the refresh rate to 50hz.

For example in Aria of Sorrow, I notice background glitches (mainly, the moon keeps glitching in the background when I'm in the rooftop garden scene.) But turning on Turbo doesn't do anything on its own, nor does it make fast forward go any faster either. I was experimenting with this while experience grinding the lazy way.

I tried the standard modes and none worked. Some progress has been made though!

This mode is displaying a full screen but every other column is white. Still, it is some kind of progress at least. Thanks again for all the advice folks!

Thanks Morf77, unfortunately those just showed a white screen. As with my other attempts if I changed the horizontal/backporch settings low enough I would get half a screen again but nothing better. The only thing that seems to vary in these tests is sometimes I get a messed up left edge and other times I don't -- but it always seems to cut out rig...

The only other bit that caught my attention is in the modeline and report from SwitchResX is that it specifies -hsync and -vsync in both cases -- but is there any way to control sync polarity from MiSTer configuration?