ZX Spectrum Next Initial Port to MiSTer

OriginalXOR
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by OriginalXOR »

A tiny question if I may, the Next in real hardware terms has an option to add another SD card and thus appears as Drive D. So my question being is there a way to have 2 SD cards (or images) running as separate drives? (Within the MiSTer core that is) NB: I do have a Real Hardware Rev.1 Next (Inside a 48K modified case), and use this 2 card method meaning I can update the Main C drive with any updates while keeping my software collections on the D. Anyway just asking as I couldn't see a mention in the docs.

Absolutely loving this core, amazing work.
For those scratching their heads with all things ZXNext, the original site may prove helpful, as well as the forums.
https://www.specnext.com/
https://www.specnext.com/forum/

On a different note, for those looking for games here is something NEXT specific:
https://gitlab.com/strandgames/brahman/ ... ompilation
Remember the Magnetic Scrolls games, well here are the updated versions complete with graphics: Yes Spectrum owners missed out on pictures with these games. There is even a compilation version you can make into an image and use that inside the emulator without upsetting the boot.vhd image.

I also strongly advise checking out Lords of Midnight within the Games>Next folder already part of the NextOS.
A fine upgrade on the original and worth a little of your time.
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Sorgelig
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by Sorgelig »

Yes, it's possible to add a second VHD.
I just need more info about it. There is a signal to select a secondary SD card but i don't know for example how to select SD card. In main Specrtum menu i see on bottom "CM" but how to switch from C to M?
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Sorgelig
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by Sorgelig »

Btw today's release has much higher performance on 28MHz. Pogie demo (second version) doesn't hicup for me now even with VHD.
OriginalXOR
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by OriginalXOR »

Sorgelig wrote: Wed Apr 07, 2021 11:26 am Yes, it's possible to add a second VHD.
I just need more info about it. There is a signal to select a secondary SD card but i don't know for example how to select SD card. In main Specrtum menu i see on bottom "CM" but how to switch from C to M?
Yes it is within this menu, when looking at the Browser listing you simply press 'D' (Drive) and it switches. However, if you have physically added a second SD card into the hardware of the ZXNext, you'll see this list shows as "CDM" and as such switch between both SDcards and Memory using the D key...
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by Fallon »

Sprites seem to be missing from the Warhawk Demo on latest release. Anyone else see this?
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Sorgelig
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by Sorgelig »

Fallon wrote: Wed Apr 07, 2021 12:56 pm Sprites seem to be missing from the Warhawk Demo on latest release. Anyone else see this?
it's fine for me. May be your VHD is broken by 0404 release write.
lordoftime79
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by lordoftime79 »

How do I make the screen scale propperly - on my actual next it fills my DELL nicely but I cant seem to make the Mister next core do the same and its the only thing stopping me from enjoying it right now.
Fallon
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by Fallon »

Sorgelig wrote: Wed Apr 07, 2021 1:11 pm
Fallon wrote: Wed Apr 07, 2021 12:56 pm Sprites seem to be missing from the Warhawk Demo on latest release. Anyone else see this?
it's fine for me. May be your VHD is broken by 0404 release write.
Still not working for me with latest core - I downloaded the boot.vhd again from MiSTer ZXNext Github and replaced my old boot.vhd

I reverted the core to ZXNext_20210404.rbf, enemy sprites return.
StalkS
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by StalkS »

Going round in circles with this core atm. I mount the VHD, It boots I get a resolution selection screen (Mode 0/50Hz/scan*1) press Enter then Y - Then Nadda, Nothing - Black screen

/media/fat/_Computer/ZXNext_20210407.rbf - (Internal SD)
/media/usb0/Games/ZXNext/boot.vhd - (External USB HDD)

I have tried having all the files on just the SD but don't get anywhere with either.

Downloaded both the rbf and the boot.zip multiple times from the Github page but I cannot get this thing going - can anyone point me in the right direction?
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by pgimeno »

How difficult would it be to integrate a Pi Zero in this core?

If that's out of the equation, how difficult would it be to emulate enough of the communication, as to get TZX support working?
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Sorgelig
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by Sorgelig »

Why you need tzx support in this core? ZX Spectrum core is much more advanced and has tzx support.
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by antonie »

I agree with @sorgelig's sentiment. I own both a MiSTer and ZX Spectrum Next (Accelerated with Pi). Even on the physical hardware I really don't have a need for tzx support since I use the ZXNext for ZXNext apps.
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by pgimeno »

Sorgelig wrote: Thu Apr 08, 2021 4:39 am Why you need tzx support in this core? ZX Spectrum core is much more advanced and has tzx support.
I have a directory of games in a variety of formats. I would need to seek all TZX files in that directory and convert them to TAP or take snapshots, and that's an arduous task.

The ZX Next core is kind of a "one-stop shop" for me. I plan on buying a Next sometime, and I'd like to get used to it. Compatibility is good, and I can also run Next-only software. Yes, I know I still have the ZX Spectrum core as a fallback; but its TZX support is not great, and I have to switch to another core. I know that if TZX support is added with a hack, rather than with an emulated Pi, it will probably be the same not-so-good one as in the Spectrum core.
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Sorgelig
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by Sorgelig »

Almost all games are already converted to TRD/SCL format, so none of conversion and none of waiting time is required.
Btw, if specific TZX can be converted to TAP, then this TZX should be well supported in ZX Spectrum core. TZX compatibility is quite high in current implementation.
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Chris23235
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by Chris23235 »

pgimeno wrote: Thu Apr 08, 2021 2:28 pm
Sorgelig wrote: Thu Apr 08, 2021 4:39 am Why you need tzx support in this core? ZX Spectrum core is much more advanced and has tzx support.
I have a directory of games in a variety of formats. I would need to seek all TZX files in that directory and convert them to TAP or take snapshots, and that's an arduous task.

The ZX Next core is kind of a "one-stop shop" for me. I plan on buying a Next sometime, and I'd like to get used to it. Compatibility is good, and I can also run Next-only software. Yes, I know I still have the ZX Spectrum core as a fallback; but its TZX support is not great, and I have to switch to another core. I know that if TZX support is added with a hack, rather than with an emulated Pi, it will probably be the same not-so-good one as in the Spectrum core.
The TZX support on the Next is not good, it doesn't allow you to stop the Playback, which necessary for many games that load the levels individually.
Right now I tend to use the Next (I have a N-Go board) for Next only stuff as the ZX Spectrum part is not as refined as on the MiST or MiSTer. E.g. I just tried Uridium Plus on the Next and over HDMI certain effects don't work in the Next because the HDMI output is not cycle exact.

I am sure this can be changed in the future but I think the team has more interest in getting bugs in the actual Next mode ironed out first (understandable), so the 48/128 modes will not be as exact as on the MiSTer or MiST for a while.
lordoftime79
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by lordoftime79 »

The Next team do say that HDMI shouldnt be used for exact timming stuff - this is why on my next I have VGA connected instead other than that the Spectrum part of the Next is brilliant, other than like you say the TZX issue.
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by tonywatto »

TZX files are now supported in the core, as per Sorgelig's latest update.
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Re: ZX Spectrum Next Initial Port to MiSTer

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lordoftime79 wrote: Fri Apr 09, 2021 11:01 am The Next team do say that HDMI shouldnt be used for exact timming stuff - this is why on my next I have VGA connected instead other than that the Spectrum part of the Next is brilliant, other than like you say the TZX issue.
I find this a bummer, I don't see why HDMI isn't cycle exact, it works flawless on the MiSTer.
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by Fallon »

There seems to have some kind of scrolling jerkiness/ judder on MiSTer's ZX Next during some games. This problem seems to be present in both Scramble, and Warhawk Demo. This is not present running Scramble via the ZX Spectrum Next CSPECT emulator. I haven't had the chance to test Warhawk in CSPECT.

It'd be interesting to see how these games perform on a real ZX Next compared to MiSTer.

Scramble:
https://www.rustypixels.uk/?page_id=34
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Re: ZX Spectrum Next Initial Port to MiSTer

Unread post by NML32 »

Fallon wrote: Sun Apr 11, 2021 3:44 pm There seems to have some kind of scrolling jerkiness/ judder on MiSTer's ZX Next during some games. This problem seems to be present in both Scramble, and Warhawk Demo. This is not present running Scramble via the ZX Spectrum Next CSPECT emulator. I haven't had the chance to test Warhawk in CSPECT.

It'd be interesting to see how these games perform on a real ZX Next compared to MiSTer.

Scramble:
https://www.rustypixels.uk/?page_id=34
Recorded from my ZX Next real hardware.
Scramble - https://www.youtube.com/watch?v=mAu5jsKOhZc
Warhawk v101 - https://www.youtube.com/watch?v=CvU7fCUkBkI Skip to 2:58 for gameplay.
Warhawk demo - https://youtu.be/2HhGNNP3JMY
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