MiSTer FPGA Forum

suww37

So good news... I finally managed to get filters (scanlines) working! Submitted a pull request to merge to the beta branch. very sorry ~ I solve it. :roll: Can you check if the attached custom build works with your CRT? i.e. whether it still has that strange sync issue? (note: the MDA mode is broken, so just use CGA with it) then I would assume fr...

suww37

Chilli_Vibes wrote: ↑Mon Jul 25, 2022 9:24 pm The Lion King was on a multitude of platforms, all better than DOS - at that time.

NES, SNES, Megadrive, Amiga, Game Gear, Master System, GameBoy - Just play it on one of those cores, far, far superior to the awful DOS version.

I am well aware of that fact. But I wanted to run on ao486 because of the memories of playing lion king in Dos.

suww37

beta 1.5 https://github.com/spark2k06/PCXT_MiSTer/tree/main/releases Restructuring the OSD menu Fix MDA brightness Added Tandy key scan code converter. Update files.qip Fix CGA video resolution (is now 640x200 ) Fix CGA Initial text mode Tandy 's 225 mode fix A new prebeta branch, version 2.0 , is opened: https://github.com/spark2k06/PCXT_MiSTer/t...

suww37

Newsdee wrote: ↑Mon Jul 25, 2022 12:45 am The gamma setting should help with that, but its currently off due to it not being wired at all in HDL code.

Scanlines do not work either, even with the fixed resolution. At least shadow masks do work.

very sorry ~ I solve it.

suww37

The gamma setting should help with that, but its currently off due to it not being wired at all in HDL code. Scanlines do not work either, even with the fixed resolution. At least shadow masks do work. I chaged it to the original "MiSTer." file. But the brightness is weird. Why isn't it fixed? Even the ao486 brightness is equally strange...

suww37

In the MiSTer sdcard root folder, your "MiSTer." I copied it, but the screen brightness is too bright. The same goes for replacing it with the first file.

suww37

Is there any solution for bending the top row of the screen in the 15khz sony pvm monitor? I can't use any method. It's no use adjusting the mister.ini settings. Does anyone know why this screen is coming out? Mate, you've asked this numerous times already, and the answer so far is: there isn't anything you can do. This core is a work in progress ...

suww37

Is there any solution for bending the top row of the screen in the 15khz sony pvm monitor? I can't use any method. It's no use adjusting the mister.ini settings. Does anyone know why this screen is coming out?

suww37

C-R-T wrote: ↑Sat Jul 23, 2022 12:01 pm Lion King runs horribly on a real 386. It works, but it’s slooooow.

I don't currently have a real 386, so I didn't know the lion king game was very slow when playing. If so, I think the recommended lionking specification is 486sx and it seems clear that MiSTer's ao486 is not implementing enough performance of 486sx.

suww37

What is " MiSTer_PCXT.zip" and where do I put it? It is not easy. It is the mister main and it is located the /main/fat directory on your sdcard. If you update your mister this action needs to be done again because the last release of Main Mister will replace it. I think it is better to wait for this point. I copied the PCXT file using S...

suww37

What is " MiSTer_PCXT.zip" and where do I put it?

suww37

There's at least an error in memory handling with large amounts of extended memory. It's been pretty well characterized, but Sorgelig isn't working on it anymore, so it's gone unfixed for most of a year. The ao486 core is open source. If sorgelig doesn't, it might be modified by other developers, but aren't other developers interested? Or is it be...

suww37

The AO486 is nowhere near as fast as a real 486. Setting it to 90MHz brings it roughly comparable to a 486SX-33. In general, the core isn't that great. It's like owning a very offbrand PC with a Cyrix chip or something. The main dev is Sorgelig, and he seems to have lost all interest in it. He's got a lot on his plate. AO486 is a core with the abi...

suww37

The AO486 is nowhere near as fast as a real 486. Setting it to 90MHz brings it roughly comparable to a 486SX-33. In general, the core isn't that great. It's like owning a very offbrand PC with a Cyrix chip or something. The main dev is Sorgelig, and he seems to have lost all interest in it. He's got a lot on his plate. AO486 is a core with the abi...

suww37

Disney Lion King (DOS) has a recommended specification of 80386 or higher if it was released in 1994. I adjusted the memory from dos32a to 16MB to run this game on ao486, adjusted the cpu speed to 30Mhz and turned off the L2 cache switch. However, the frame skip on the lion king occurred and the game was not soft and weird. Wing commander 3 is also...

suww37

Here's a test program to check the behaviour of 9 lines per character. It prints two lines of checkerboard block characters in order to see what happens in a CGA and in a Tandy. I have tried your application, and another one developed by @Mills, and finally I have left one line blank and conditioned to be in Tandy mode: https://github.com/spark2k0...

suww37

Right keypad * key, + key, - key can not be inputed

suww37

Why is there a line under TEXT in pcxt core tandy bios? See here for a fix for now: https://misterfpga.org/viewtopic.php?p=56151#p56151 There are quite a few things in the core not finalized in terms of signal timings. This is why you see this and the PVM issue. Fixing those is not easy but as the core matures they will improve. To give you an ide...

suww37

Why is there a line under TEXT in pcxt core tandy bios?

suww37

Thanks. That tells me its not the resolution but something else. Maybe a sync issue. I don't yet fully understand how the core is handling video, but there is something non standard going on. Is it a sync problem? However, in other people's crt, 15khz is output normally, so I don't understand why I'm the only one who can't output it. Do you think ...

suww37

Thank you ! In your file, you have two things seems not good. first point : "volumectl=1" not sure it is use. It is not present in default ini file. Do you know why this option is here ? Second point: ; Set to 1 for automatic HDMI VSync rate adjust to match original VSync. ; Set to 2 for low latency mode (single buffer). ; This option ma...

suww37

wark91 wrote: ↑Thu Jul 21, 2022 4:13 pm
suww37 wrote: ↑Thu Jul 21, 2022 3:52 pm
Newsdee wrote: ↑Thu Jul 21, 2022 3:06 pm
I did not try it with the PCXT core, but in general my PVM requires the INI file to have composite_sync=1 to work well.
Maybe check if you have that on? If not, worth a try
Unfortunately, if I do that, I will encounter a weirder screen.
Could you please share your mister.ini file to see if there is some configuration to adapt ?

suww37

Newsdee wrote: ↑Thu Jul 21, 2022 3:06 pm
suww37 wrote: ↑Thu Jul 21, 2022 1:08 pm What kind of effort should I do to solve this? I'd like to see the 15khz crt screen.
I did not try it with the PCXT core, but in general my PVM requires the INI file to have composite_sync=1 to work well.
Maybe check if you have that on? If not, worth a try

Unfortunately, if I do that, I will encounter a weirder screen.

suww37

Not only does your bulid have this symptom, but other pcxt cores have the same symptom. Thanks. That tells me its not the resolution but something else. Maybe a sync issue. I don't yet fully understand how the core is handling video, but there is something non standard going on. Is it a sync problem? However, in other people's crt, 15khz is output...

suww37

The prebeta pcxt core you upload does not recognize uart hdd. 2 pcxt beta 1.4 released to github is recognized. I also attach the experimental turbo version, with CPU speed selection from OSD . For the moment we keep it separate in an experimental branch, because with the latest SDRAM changes it loses cycle accuracy in normal mode at 4.77MHz . Als...

suww37

Where did the splashscreen come from, originally? I tried to disable it (passing 0 to the Chipset module) but it still shows! Whatever is initializing it has wrong clocks; it's only when it goes away that the clock becomes what we specify in the top module. The splash.hex is copied directly to the VRAM inside the VRAM module If I recall correctly....

suww37

Newsdee wrote: ↑Wed Jul 20, 2022 3:38 pm
suww37 wrote: ↑Wed Jul 20, 2022 2:03 pm The screen is so crushedin 15khz sony pvm monitor. Is there a solution? Is timing the problem?
Is this with my test build?

Not only does your bulid have this symptom, but other pcxt cores have the same symptom. I don't know why. There are no other arcade cores and console cores.

suww37

The Splash Screen is now 1280x200 at 7.83 Khz. With this frequency, I think in most of the cases we needs to set "vsync_adjust=0" not to loose sync on the monitor. I haven't yet found where the splash screen frequency is set, but it needs to change The screen is so crushedin 15khz sony pvm monitor. Is there a solution? Is timing the prob...

suww37

Extra horizontal scan resolution doesn't really matter much. 1280 is a multiple of both 320 and 640 and should look fine. I tested it with a 15khz sony pvm monitor. The top part shakes a lot and breaks. 1280X200 resolution is not normally output on crt monitors or TVs that support 15khz output. If that's happening there are other problems with the...

suww37

dmckean wrote: ↑Wed Jul 20, 2022 2:12 am Extra horizontal scan resolution doesn't really matter much. 1280 is a multiple of both 320 and 640 and should look fine.

I tested it with a 15khz sony pvm monitor. The top part shakes a lot and breaks. 1280X200 resolution is not normally output on crt monitors or TVs that support 15khz output.

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