Just load another core first, like Atari 800. Switch to Spectrum core. Select a tape file , LOAD"". It just resets.
It looks like maybe the state is not reset properly.

Megademo DRDF099 hangs at first screen

Megademo (1991)(DrDF0).tap.zip

Hello!

Could we get a few words in the README.md about the boot.rom structure and sources, please? We were able to identify most of the components [1, 2], however some of them appear to be modified. It would be great describing the reason for those modifications, if possible.

Apologies for not starting with a pull request, but I am afraid I do not have enough information for that yet. Happy to draft one when more information is available.

Thank you.

1. https://misterfpga.org/viewtopic.php?p=60600#p60600
2. https://misterfpga.org/viewtopic.php?p=73638#p73638

In the attached image there is a demo with a turbo loader attached. which works fine on the real Speccy and on emulators, but does not want to work on the FPGA implementation. After hours of debug FPGA, I discovered that without special delay between calling the 1FF3,2A53,2FC3 procedures and between calling the trdos 2F1B procedure (reading the sector) it reads garbage. And if you put a delay there, then everything goes well. (shfix.C option)
trdos-bug.zip

ESXDos gives nice features to the spectrum, it would be great to have them.

@sorgelig
Hi, some cpu tests fail, on PC/mac fuse emulator they seem to work fine (all .tap tests).

Here they are:
z80test.zip

I try this demo in serveral configurations but allways crash after the clean screen effect, in original hardware work correctly.
On the other hand, the sound with 'General Sound' configuration don't work.

Can download and try it here:
http://www.pouet.net/prod.php?which=10531

Thanks for all the work done to make this perfect core.

Hi,

If possible, It would be great to have an option for native ram snapshots (z80 or sna). The solution to do it with the disciple in a comfortable way is complicated, it's more tedious, requieres to manage disks and some games has crashes or screen corruption issues when loaded again.

When bit 4 (EAR output) of port FE is set to 0 or 1 and that port is read back, it should return the same status in bit 6 (EAR input) if computer is an issue 3, always 0 or 1 until bit 3 is enabled (MIC output and indirectly EAR output) and any subsequent reading of the port would return the same written value, this would be the case of an issue 2, or it would always remain fixed at 0 or 1 regardless of the status written to bit 3, which is the wrong case and the one that occurs in some emulators and this core (it always returns 1).

This is not the appropriate behaviour for this port, because it doesn't fit any of the two issues and causes problems with some games, such as abu simbel or blinkys scary school.

More details can be found here: https://worldofspectrum.org/faq/reference/48kreference.htm (Port 0xfe section)

@sorgelig

hi, when I change the core settings (full screen or memory) the core does not let me to save it.
So when I turn on the mister the settings are lost and are to be changed again.
The same with c64 core.
Can you let the users to save the settings for each core ?
A new command in the core menu to save settings as default, I mean.
Thank you

It would be interesting, in 128k modes, to be able to disable the AY sound chip from the menu, just as it can be done with general sound. Yes, I know that this chip is part of these models, but there are situations in which you want to hear only the beeper sound, because the music is repetitive or for simply comparison, and it's not possible since it is always enabled.

@sorgelig

Hi, Runestone game hangs with all tape format, I used many games but all of them hangs before playing.

1 Runestone (1986)(Firebird)[a].tzx.zip

2RUNESTON.TAP.zip

3Runestone (1986)(Firebird)[a2].tzx.zip

Is there any way to run it ?

Bye

Hi,
this is the last game that I do not succeed in running on Mister:

Mask (1987)(Gremlin Graphics)(128k).zip

Could you tell me the way to run it or is there any other kind of problem ?

Bye

Multicolor game Gluf 128K is not working properly. Color lines become mismatched and the image is confusing.
Maybe it has to do with 128k mode timings, usually the cause of these multicolour routines to fail.
Tested in fuse and zxnext core too and work perfectly.

@sorgelig

Hi, with mister, new release, I do not succeed in loading these two games, but with fuse or other emulators they work well.
They hang at the loading.
What kind of problem is there ?

Terramex [48-128K].tap.zip

Terra Cresta [48-128K].tap.zip

Forgive me if this is the wrong area but I have an IPF archive of the files. How would I go about converting these to a compatible format?

Good morning @sorgelig ,
is there the possibility to enlarge the screen to 16: 9?
I would like to eliminate the two black side bands that appear (see photo), other cores have the option in the menu but with the ZxSpectrum core I can't find a way to have a full screen without these two side black bands.
How can I do?

John Ritman games Head Over Heels/Batman/MatchdayII have a common menu interface style. On this core the menu selection constantly rolls through the options, I'm not sure if this is a regression. This is not reproducable on the ZXNext core or actual hardware.

@sorgelig

Hi, Z80 test revision 1.2 reports some failures.

z80full.zip

Hello, i'm a new user of MisTer, trying this core i've encountered a possible bug, trying one of my favourite homebrew game: Castlevania Spectral Interlude, freely downloadable on the authors page http://spectralinterlude.com/ i've seen that the music and the sound in general is horribly corrupted, the same things happens with the game Midnight Resistance with the 128k only version. 48k games i've tried sounds correctly. I'm using HDMI connection and i've tried both 96k and 48k for hdmi audio.

Hello,

I'd like to bring to your attention an out of spec behaviour of Pentagon mode whereby it does not render at least 16 lines of top border. This can be clearly observed in "Across the Edge" demo where at some point a text "ACROSS" is drawn on top of the screen and "EDGE" at the bottom and that top part is cut. Also, ZX Next core in "Soviet timings" personality renders noticably higher top border than bottom.

I don't know if that was an intentional decision to implement it like that in ZX Spectrum core but I would like to kindly ask to make the missing lines to appear as it would in real Pentagon.

Thank you very much in advance.

I have a problem with the position of the image on the screen of the ZX-Spectrum core in several CRT televisions (15hz), using VGA / SCART.
Basically the problem is that on some TVs, the core is off-center to the left, even losing the entire edge.
On other TVs, the core is off-center to the right, or above the screen, losing the upper edge depending on the model.
It is an issue that I have reported in Main_MiSTer and I have been answered (thank you) that it is better to post the problem in each core individually, since it is not possible to implement it at the framework level.
It would be great to have a Horizontal / Vertical position control in the OSD to be able to center the image regardless of the TV used.
I have tested the real machine on different TVs and curiously the image does come out perfectly centered.
I have tried several SONY trinitrons as well, such as SAMSUNG and SANYO models.

Hi @sorgelig,
The spectrum core has not the key TAB assigned.
Could it set to use Graph Mode as like Spectrum plus or 128 ?
So it would be easy to change to [G] mode instead use other combinations.

ZX48 core had specdrum audio, it would be nice to have this feature available on this great core.

@sorgelig

hi,
I need to change a key, how can I modify the keymap permanently ?
Is there a file to edit ?
If I change a key by menu when I reload the core it will be restored to default., I need to fix it permanently, the save setting does not work for this.
Help me please.
Thanks

@sorgelig

Shock.tap.zip

This demo does not work well in this screen, there are some bugs:

It would be great to have light gun support. Guncon 2 for CRT TV and Guncon 3 for modern TV is great feature that have console cores. Could You please add.

Hello,

I would like to kindly ask to implement a feature in the core which would allow to switch stereo mode between ABC and ACB. This is because most of the demos for Pentagon seem to be made with ACB in mind whilst the core appears to be ABC.

Additionallly, if it was possible to have both AY and YM chips implemented (I don't know which one is now) and option to switch between them, that would make the core basically feature complete over already a great thing.

Many thanks in advance.

A lot of tapes are broken with current release V20210123. R loading Error's, hang ups during loading, or loading border goes red flashing

Just some examples of the N folder:

N.E.I.L. Android (1988)(Alternative Software).tzx
Nebula (1984)(Red Shift).tzx
Necris Dome, The (1987)(Codemasters).tzx

All these are working in previous V201108.

If more examples or md5 sums of the files are needed just tell me. I'd pick them out.

In OSD, it's not possible to reset the current machine without changing to another one.

Eg, if I'm in 48K mode and want to reset I need to first change the machine in "Memory" tab, then "Reset & Apply" becomes available, then I have to change the machine back to 48K in "Memory" and reset again.

I know there are shortcuts for keyboard reset, but it can be a minor annoyance when using a joypad. Perhaps adding a separate "Reset" option would be a good idea, or just enabling "Reset & Apply" to reset current machine without changing it.

It would be great to have kempston mouse support either on this one or zx evo core.

There are a few games and conversions for it.

The best one is 'ZX Larry', appeared on latest ZX Dev, but there are others:
https://velesoft.speccy.cz/kmsoft.htm

and probably much more.

It's kind of BSX on SNES, it's not a veeery used feature, but a nice one 😄

I suggest adding possibly debugging Z80,
There is a ready project github.com/hoglet67/AtomBusMon, which is built on the T80 Core and a simple AVR Core you need to manage. And the console output is simply connected to the Linux console.

@sorgelig

This test doesn't work as expected.

IRContention.tap.zip

The dark tones of the colors are too dark.
Core zx spectrum photo:
https://ibb.co/TR2wFvN
Core ZXNext Photo:
https://ibb.co/WDyBPth