MiSTer FPGA Forum

spark2k06

I am not sure I understand what has to be done: There are only 3 scripts for IBM5160, JukoST and Tandy. Out of these 3 scripts only JukoST uses XTIDE. For IBM5160 and Tandy one has to use the ide_xtl.rom by loading it as a BIOS extension at E000. For Micro8088 and PCXT31 which use XTIDE there are no scripts, only the ROMs. It looks like one has to...

spark2k06

PCXT : - PCXT31 and Micro8088 ROM s updated: Updated with the Full Operation Mode option enabled, it is now compatible with the BASICA application and some other Tandy 1000 software that might be incompatible with this mode disabled. Thanks @akeley for investigating this problem. Note : This update is about the SW folder in the GitHub repository, ...

spark2k06

I am not sure I understand what has to be done: There are only 3 scripts for IBM5160, JukoST and Tandy. Out of these 3 scripts only JukoST uses XTIDE. For IBM5160 and Tandy one has to use the ide_xtl.rom by loading it as a BIOS extension at E000. For Micro8088 and PCXT31 which use XTIDE there are no scripts, only the ROMs. It looks like one has to...

spark2k06

ROM SW folder updated, whoever are interested in this enhancement by means of embedded ROM s, you will have to rebuild them from the corresponding scripts located in the same folder: https://misterfpga.org/viewtopic.php?p=69262#p69262 625 is out for xtide https://www.xtideuniversalbios.org/changeset/625/xtideuniversalbios/ Thanks for the informati...

spark2k06

PCXT : - XTIDE ROM update: Updated with the Full Operation Mode option enabled, it is now compatible with the BASICA application and some other Tandy 1000 software that might be incompatible with this mode disabled. Thanks @akeley for investigating this problem. Note : This update is about the SW folder of the GitHub repository, to take advantage ...

spark2k06

Thanks for looking into this. I've just tried on a few of these games with this new rom and they work ok. Any chance to include this as a permanent change in the official BIOS roms/xtl, or would it interfere with some other stuff? Or perhaps you could add this one to the repo as an alternative xtl rom and mention it in the wiki? I guess most users...

spark2k06

Indeed, in the XTIDE BIOS , the Full Operation Mode option was disabled: full_op.png I have proceeded to enable it so you can try it... attached, you must select it for the EC00h ROM from the MiSTer OSD menu, and use it with ROM s that don't have it embedded... such as the original IBM 5160 ROM . If it works fine and you want to use it in ROM s wit...

spark2k06

Accessing the SD card itself is not difficult. I have tried it myself. It was my goal to implement it on my PCXT. https://github.com/kitune-san/KFMMC The difficult part is how to create a wrapper for the FDC or IDE... I'll have to research the cores listed there, but if these are simulating IDE or FDC, it might be easy to port them. ...Or create a...

spark2k06

kitune-san wrote: ↑Tue Feb 07, 2023 2:32 pm
I'll have to research the cores listed there, but if these are simulating IDE or FDC, it might be easy to port them.

...Or create an SPI device in HDL and create a driver (like universalbios).

In case you can help...

https://opencores.org/projects/ata

spark2k06

It would be difficult to create a unified IDE/FDD controller for all boards. The method of accessing HDD or FDD images differs from board to board. Could the secondary SD of the MiSTer I/O board via SPI be used? https://github.com/MiSTer-devel/Wiki_MiSTer/wiki/Secondary-SD-card It would be accessing the SD directly, without an HDD image in between...

spark2k06

I've recently made some improvements to the original Graphics Gremlin project from the development carried out for MiSTer:

For those who are interested, I have published a hackaday entry with all the details:

https://hackaday.io/page/14228-improvin ... in-project

spark2k06

You said that in the case of “Monkey1” or “prince of persia“, the hercules screen is output to normal. But if you also check these 2 games in detail, you’ll notice that the screen is not in the center and has moved slightly to the left. So it looks like you‘re going to need a screen adjustment for the Hercules graphics module, not a problem with a...

spark2k06

I think you're drawing the exact wrong conclusion there, spark2k06. It wasn't essential on Wordperfect, but F11 was something that almost every user would bang on constantly. And, per jca, real XTs could read the code, so IMO you should be moving both F11 and F12 to Windows-F11 and F12, like the AO486 core does. Intercepting those keystrokes was n...

spark2k06

After reading all the comments about the real use of F11 and F12 on XT machines and software designed for it, it is clearer to me that it is clearly not essential

spark2k06

Here goes my contribution to the original Graphics Gremlin project, let's see if the author of the project is encouraged to try to fix the outstanding problems

https://twitter.com/spark2k06/status/16 ... 4175260673
https://github.com/schlae/graphics-gremlin/issues/15

: photo_2023-01-25_08-47-24.jpg (205.26 KiB) Viewed 8398 times

spark2k06

When using Micro-88 BIOS the system boots only if the primary card is CGA. If Hercules is enabled it is possible to switch back and forth between CGA and Hercules. While typing this post I got an idea: CGA enabled, Hercules enabled and Primary Hercules. The system boots, the primary card is Hercules and shows just a blinking cursor but pressing F1...

spark2k06

Probably almost nothing. DOSBox completely ignores F11 and F12 keypresses and does not pass them to applications. DOSBox is explicitly for games only. I can't speak for spark2k06, but I was assuming that the XT core is supposed to be usable for more than that. I'm pretty sure WordPerfect, for instance, uses F11. On the max speed version of the cor...

spark2k06

Given that the F11 shortcut only works for PCXT mode, how about making the same shortcut a composite on/off switch for Tandy mode? That way there is no overlap in functionality nor additional key being used. I buy your idea, but because F11 is free in Tandy mode ;) SplashScreen.png Already available in the new release I just published

spark2k06

PCXT:

* MDA Upgrade to Hercules Graphics Card
* Enable/Disable of CGA and Hercules I/O ports (Only with PCXT model)
* 1st Graphics Card selectable from System & BIOS (Only with PCXT model)
* F11 Shortcut Key RGB / Composite for Tandy
* F11 Shortcut Key Hercules / CGA for PCXT

spark2k06

jca wrote: ↑Thu Jan 19, 2023 9:13 pm
But there is an IBM BIOS which supports the IBM Enhanced Keyboard.
viewtopic.php?t=5869

What software compatible with XT machines uses either of these two keys? F11 or F12

spark2k06

Is there no solution to the problem at the moment? There seems to be quite a lot of programs or games that use Hercules' non-standard registers. Do we have to wait for help from someone? Correct, the sources are already available for anyone who can help, and soon I will publish the release for everyone despite this problem, as I said, before we di...

spark2k06

Has the Hercules graphics bug issue been resolved? No Still, when I run Hercules-only programs, the graphics or characters are broken, and the left side of the screen is cut off and attached to the right side. Software that MiSTer identifies as 720x348 in graphics mode correctly, use the register values corresponding to the "Graphics" se...

spark2k06

I have already reorganised the code, I share the changes in the prerelease branch: https://github.com/MiSTer-devel/PCXT_MiSTer/commit/c063a5635c7137a9b495f2f54237e53b31093ef1 I have also attached a new binary, I have simply updated the splash screen, with information about the new F11 shortcut key: SplashScreen.jpg Would iit be possible to have a k...

spark2k06

Attached is a new version, this time I have moved the graphics card selection options to the System & BIOS section: System_And_BIOS.jpg Here I will clarify some aspects of the issue: The three new options only work with the IBM PCXT model, if Tandy 1000 is set, Hercules is not available and only works with CGA/Tandy . As these are options for t...

spark2k06

Now that you mention it, I see it in your youtube video. Sadly I do not know much about the communication between cores and the framework. Maybe a wrong resolution is indicated to the scaler? (This would also explain why the patterns in the video feel wrong to me). At the moment I don't know, I only know that the software that makes it display 720...

spark2k06

I am surprised by this. I always thought that there is only the 720x348 mode on Hercules. I did some programming on DOS as a teenager, and no graphics library offered any other mode. Is there any documentation on this? I tried to google that mode, but found nothing. Yes, I'm surprised too, but that's the output information it gives when you activa...

spark2k06

Good! Simcga is working. But the graphics are a little weird. A small bar on the left side of the game screen is attached to the right side of the screen. I see a similar phenomenon when I run another program that supports hercules without using simcga. Yes, I have identified it... there is a shift of the screen to the left. Apparently there are t...

spark2k06

Attached is a new version. This time I have added the second 32Kb page from Hercules, so it seems that SIMCGA is now working (type CLS after execute It): WIN_20230117_15_39_15_Pro.jpg A curious thing happens with AlleyCat running simulated in Hercules , and that is that windows only open if CGA is also running. This has been the case so far, but no...

spark2k06

I am pleased to show you the first tests on the upgrade of the MDA module from Graphics Gremlin to Hercules:

There are still some screen adjustments to be made so it doesn't look scrolled to the left, and support for the two Hercules memory pages, but I've attached a first binary for you to try out.

spark2k06

PCXT:

- Credits also with MDA
- Improved LPT dummy feature

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