MiSTer FPGA Forum

pgimeno

DS? He said it wasn't possible before but he is more experienced now and probably has more tricks up his sleeves. Definitely not. This post is from page 2 of this very thread, when DS was discussed as a possibility: https://misterfpga.org/viewtopic.php?p=68792#p68792 Most bets are on the Jag. The other possibilities are NGCD, CD-i, VirtualBoy or a...

pgimeno

I doubt it's Saturn, given the current WIP core can already run some games, and because it would be a very ugly thing to do to srg320. As much as I hope it was a 3DO, I don't really think that will be it. NGCD sounds plausible, given the size of the project.

pgimeno

Don't forget that update_all is unofficial.

pgimeno

Replacing the menu core with a custom version that switches to the Linux screen from the beginning and loads a certain script automatically at start, should be doable. This script can launch the front end. Upon selecting a core, it should be easy to load it via writing a command to /dev/MiSTer_cmd. This can be done in any language, including a shel...

pgimeno

@CartoonDonkey I've only seen that kind of problem when I've tried to install a corrupted RBF. Maybe try re-downloading it again, and making sure it has the right length (3,709,856 bytes).

pgimeno

HerrBerzerk wrote: ↑Fri Feb 24, 2023 2:00 pm
A lot of classic arcade games have sound issues like Galaxian, Frogger etc... some of them nearly unplayable. I know analog sound is hard/impossible to FPGA, but why not using samples then, like early mame did for many games. It would make them playable.

I did that with Donkey Kong. It wasn't good enough.

pgimeno

Most "2D" DS titles use the 3D engine to show more sprites or even just use it as additional 5th background layer. Only very few titles don't use 3D at all. Easily < 10% As a programmer who has enjoyed the GBA video hardware and hated the GBA sound hardware and CPU limitations, I would be delighted to have a GBA with the processor and sp...

pgimeno

Is there any way you could walk me through how you do this? I have my raw save files from uLaunchELF on a USB stick and I have tried converting them to .mcd format with MemcardRex. I boot the corresponding game on MiSTer and mount the .mcd file and when I try to load my save in game it says "memory card not formatted". Am I missing a ste...

pgimeno

Keep in mind that cores are written by many different developers who possibly haven't checked the other developers' cores, so consistency is not something to expect; however, some developers may be happy to hear feedback from users and make the necessary changes to improve consistency.

pgimeno

Yes, like I mentioned earlier, on my IBM-XT PCem it also crashes, but it works on the 486 PCem setup (similar to situation on PCXT and ao486 cores here on MiSTer). Yeah, sorry, I totally forgot. I should have re-read the thread first. :oops: What's puzzling is that you get disk errors. Did you manage to get past them? If not, maybe it's a question...

pgimeno

One question, do you have PCEm? If so, does any of the problematic BASIC programs run there with the same disk image? (I don't have it and can't try, sorry)

pgimeno

Apparently it's the same with a CPC using a French layout, except that the symbol displayed is ù instead of | but typing ùcpm works.

pgimeno

OK I've managed to take a look. There's something very wrong with BASICA. I suspect it's related to the version of DOS; the other alternative is a bug in the core. It seems to corrupt the disk buffers or something like that. If e.g. you run BASICA and then type SYSTEM to go back to DOS, the directories are all messed up. What caused the "Direc...

pgimeno

Left shift and the key to the right of P works for me.

pgimeno

Malor wrote: ↑Sun Jan 22, 2023 5:32 pm
I guess my aging brain has let me down again, then. Wordperfect 5.1 used function keys very heavily, and I thought F11 was one of them, but I haven't touched it in probably thirty years.

That's my recollection as well, though I don't remember ever using it on an XT.

pgimeno

FPGA is for sub-millisecond devices, not for something hanging off a 31.5KHz serial bus. Technically that's sub-millisecond :cool: MIDI is a 10-bit transmission protocol (8 bit + start + stop, no parity). Each note involves three bytes - event+channel, note, velocity. So, the total time to send a note is 3*10/31250 which is 0.96 ms - very slightly...

pgimeno

CRC media/fat/games/mame/temp/pacman# cksum pacman.5e|awk -F’ ' ‘{print $1}’ | xargs echo “obase=16; $1”|bc 7359FAA1 That's not the CRC32 that it expects. Try to zip it and then use unzip -v to view the CRC. There's also rhash and possibly others. This Python program also calculates it: import sys, zlib def crc32(b): crc = zlib.crc32(b) return crc...

pgimeno

akeley wrote: ↑Wed Jan 18, 2023 3:54 am
Interesting, you might well be onto something here (thought it's well over my head). But the confusing thing is why do these games work in ao486 and 486 PCem? (from the same hdd image).

With BASIC or BASICA? I don't think either of these works on ao486, because they depend on the BASIC ROM, which is only present in older IBM computers.

pgimeno

-BASIC games remain a big mystery. Despite the problems with keyboard I did manage to test some, and the GW basic games seem to work, but BASICA all end with the "Direct statement..." error. Some more examples (aside from B1 Nuclear Bomber, Baseball) are Big 8 Football, Black1, 15 Puzzle, Acey Deucey. "Direct statement in file"...

pgimeno

Would a 80386 that only operates in real mode be interesting? Implementing protected mode is a heavy lift and DOS doesnt even use it... DOS programs routinely used it. Version 2 of my Spectrum emulator was written to work in protected mode, initially with PMODE/W (a DOS4GW restricted clone) and later with a DPMI host like CWSDPMI, to enter and han...

pgimeno

PistolsAtDawn wrote: ↑Sun Jan 08, 2023 5:27 am
Have you updated the firmware on the controller?

No, I don't meet the requisites to run the updater. But that line comes from the core anyway. I wonder what makes it trigger. Light gun on/off isn't even an available binding.

pgimeno

I've reverted that commit and update sys to latest. Please test against possible regressions. I don't remember what that change was for. Thanks a lot! When I investigated it, judging by the dates I concluded that this commit was introduced in an attempt to fix issue #4, which didn't fix it but it also caused this new problem. Probably introduced w...

pgimeno

I also use the button as "start" and it works fine. Make sure to map the buttons both on menu core as well as the psx core. Yes, I did that. In fact, at first I thought that I could get rid of the light gun toggle by going to main and remapping the controller, and that it got broken when I went to the core and remapped it there. Later I ...

pgimeno

I have a PS5 controller, which has an extra Mute button. In Main, I have defined the Mute button as the menu button. It works fine in every other core I've tried. However, in the PSX core, sometimes the menu isn't activated when I press it, and instead I get a line that says "Light gun mode is ON" (or OFF). Other times it seems to work fi...

pgimeno

Someone just made the problem worse by pointing to issue #6 instead of issue #4. https://github.com/MiSTer-devel/ZXNext_MISTer/issues/11

Issue #6 is NOT about a problem saving configuration. It's about a problem saving BASIC programs. That mistake will just add to the confusion and reinforce the idea that issue 6 is the same as 4, when it's not.

pgimeno

I don't understand why this fix isn't in the official core. :? Because I left MS Github to not return, and no other person who reads this thread seems to be willing to reopen issue 6 and tell Sorg that he was wrong because it isn't a duplicate of issue 4 , and tell him that the fix is to revert commit e7e7fd56 . So, a question of lack of communica...

pgimeno

Bash is great for these kind of things, and MiSTer has it of course. Here's a short script that does this: mkdir {A..Z} for i in {A..Z} ; do mv "$i"?* "${i,}"?* "$i/" done mkdir -p 1 for i in ??* ; do mv "$i" 1/ done rmdir 1 {A..Z} # remove empty folders It may spit a few errors that can be ignored. This one ...

pgimeno

Aberu, you have a few good points but you even contradict yourself in some others. Sorry for the point-by-point reply but I think it's worth dissecting it. First of all, everyone should have listened to rampa's wishes in the other topic and been respectful. I'm glad some of you decided to take the license debatelord stuff here, thank you for that. ...

pgimeno

Let's not lose sight of what the real issue here is. Some people offered their code under the condition that if it is used, the GPL freedoms must be granted. That code is incorporated into every core for MiSTer, and in most cases it just can't work without it (or without a non-GPL replacement that is not yet written). Neglecting to comply with thei...

pgimeno

You can use incompatible software licenses together as long as you have the author's permission. Yes, but all of the authors. In the PDP-11 core case, Rampa only got permission from the PDP module's author, not from the framework's authors. The issue applying a software license to files that describe hardware is another issue altogether and I do...

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