Re: SSD fun with Windows XP

Posted on 2022-09-01, 09:59

by

by javispedro1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I am not familiar with nLite but can't you just pick _all_ "controllers"? They all refer to the same binary so it's not going to use any more space on your image. Still this is not related to SSDs, it is all about SATA controller. It would be the same for a rotating disk plugged in to a SATA port. …

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Re: DOS virtual filesystem

Posted on 2022-08-22, 23:38

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by javispedro1

in PC Emulation

in PC Emulation

My first idea was to write a "small" TSR program that just wrapped the DOS IO API functions. The problem with this is that the API is quite big and the concept of default devices makes it more complicated. I then considered using the network and create some kind of network share and having a built …

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Re: VMusic - OPL3, EMU8K and MPU-401 for VirtualBox (Linux hosts only)

Posted on 2022-08-21, 16:52

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by javispedro1

in Release Announcements

in Release Announcements

I've tested the extpack in Linux and its working good, good job dude. I test one DOS/4GW game with Miles Sound and it occasionally a note missing in OPL3. but it doesn't hurt. I read your post in the vbox forum, https://forums.virtualbox.org/viewtopic.php?f=7&t=105144 I don't know much about the …

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Re: VMusic - OPL3, EMU8K and MPU-401 for VirtualBox (Linux hosts only)

Posted on 2022-08-21, 16:49

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by javispedro1

in Release Announcements

in Release Announcements

Ah, that's unfortunate. One thing I was working on back then was a Docker project to ease and hopefully automate the building of extension packs using the VirtualBox code base . I haven't worked on it in years, but I could dust it off, if it would be useful to you. It might be possible to use it as …

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Re: VMusic - OPL3, EMU8K and MPU-401 for VirtualBox (Linux hosts only)

Posted on 2022-08-03, 13:56

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by javispedro1

in Release Announcements

in Release Announcements

@javispedro1 DUDE, how did you pull this off? Years ago I wanted to start a similar project, but I got lost just trying to figure out how to build an extension pack as a stand-alone project, without having to check out the entire huge VirtualBox code base. I remember hardly finding any information …

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Re: VMusic - OPL3, EMU8K and MPU-401 for VirtualBox (Linux hosts only)

Posted on 2022-07-14, 17:25

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by javispedro1

in Release Announcements

in Release Announcements

Good! I was dreaming this years ago, and finally! VBox 6.1.34 failed to install the ext package, saying "VMusicMain" not found. I'd try the older version. OK I finally noticed that it only works for Linux host. aaah! my dreams! :D Yes, Linux only :) . (For the record I'm using 6.1.34 myself, and …

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Re: Patch for Windows 98/98 SE to run on newest CPUs

Posted on 2022-06-12, 19:11

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by javispedro1

in Release Announcements

in Release Announcements

I've created a patch for Windows 98 to run on the newest CPU (AMD Zen 2+, 10 nm Intel, ...). I am bit curious about "10nm Intel", which I am guessing means Alder Lake only. I was not aware that it was broken there too. Is there online any complaining about it ? Also, for those who own an AMD Zen 2 …

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Re: VMusic - OPL3, EMU8K and MPU-401 for VirtualBox (Linux hosts only)

Posted on 2022-05-31, 10:51

by

by javispedro1

in Release Announcements

in Release Announcements

This makes installing/running Win98 impossible if you have a Ryzen CPU. Intel still works fine though. What do you mean? As far as I am aware, Windows98 should work just fine if you disable nested paging , which you can still disable in VirtualBox (see acceleration tab). Someone even diagnosed the …

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Re: Routing DOS MPU-401 to Windows 98 MIDI mapper?

Posted on 2022-04-25, 23:40

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by javispedro1

in Marvin \ Sound

in Marvin \ Sound

Note that this is supposed to work. When you use the normal WDM driver, sbemul.sys is supposed to utilize whatever you select on the MIDI mapper. However, when I try on my T5710, selecting Yamaha's soft synth only results in silence (in DOSMID's MPU output). I suppose there is something broken with …

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Re: Converting modern video files to older formats

Posted on 2022-04-25, 19:22

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by javispedro1

in Marvin \ Video

in Marvin \ Video

Did you try MPEG-1 ? I keep thinking that for a 98-era machine Cinepak is like a bad joke. If it has enough horsepower to decode it, the MPEG codecs are on another league entirely. And 98 should definitely come with MPEG-1. SE came with MPEG4... (part-2 aka asf aka divx, not h264).

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Re: Are there any legacy drivers for VIA's integrated AC97 sound card?

Posted on 2022-04-25, 17:00

by

by javispedro1

in Marvin \ Sound

in Marvin \ Sound

Kahenraz wrote on 2022-04-25, 16:09: I also found that if I load the DOS drivers before Windows, then several other device drivers will load and I have full digital and FM sound for DOS games (within Windows), but there is still no sound from Windows programs. Do you mean Viafmtsr too? Or just …

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Re: Are there any legacy drivers for VIA's integrated AC97 sound card?

Posted on 2022-04-25, 15:27

by

by javispedro1

in Marvin \ Sound

in Marvin \ Sound

I think it was bluescreening at startup, not freezing, and also it was not on the audio drivers. But then I made the mistake of using system restore and completely destroyed it :) Note that I could not load VIASBCFG before WinME, so I didn't expect it to work in the first place. If at some point I …

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Re: Are there any legacy drivers for VIA's integrated AC97 sound card?

Posted on 2022-04-25, 13:46

by

by javispedro1

in Marvin \ Sound

in Marvin \ Sound

I guess this is the T5710 ? I was investigating this here https://www.vogons.org/viewtopic.php?p=1048101#p1048101 Do you need VIASBCFG for DOS ? Or does your BIOS have options for SB emulation ? I have "pure" WinME (without DOS mode) installed on my T5710 so I couldn't try this, but my impression is …

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Re: VMusic - OPL3, EMU8K and MPU-401 for VirtualBox (Linux hosts only)

Posted on 2022-04-20, 22:30

by

by javispedro1

in Release Announcements

in Release Announcements

Nice! Thanks for trying it! I couldn't get it to work on windows, I get no MPU401 option on "Multimedia properties > MIDI". No new MPU device. Maybe this is because I didn't enable emu8000? If you use the Sound Blaster 16 driver (even the Windows one), you will not see a separate MPU401 since the …

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Re: New DOS mouse driver for VirtualBox/VMware/ PS/2 mice

Posted on 2022-04-19, 21:33

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by javispedro1

in Release Announcements

in Release Announcements

I actually got the PS/2 scroll wheel to work on real hw (my T5710) under Windows 3.11 in protected mode :) Would have made a video, but it would be boring... I needed to patch VKD.386 , and I'm not sure if I can redistribute it (even though it actually comes as sample code in the Windows 3.1 DDK). …

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Re: Moving Mouse dramatically slows down CPU

Posted on 2022-04-19, 21:24

by

by javispedro1

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For some reason, MS stopped using standard packet size from Microsoft Mouse version 9 (1993 and newer up to version 11). It uses 1 byte instead. I have been searching and reading old USENET posts about this. I'd like to know why MS changed this because it fixes the high CPU utilization just by …

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Re: New DOS mouse driver for VirtualBox/VMware/ PS/2 mice

Posted on 2022-04-17, 00:51

by

by javispedro1

in Release Announcements

in Release Announcements

Hey, cool program! Out of curiosity: Is there anyway to add polling rate to this ala PS2RATE for Win9X? Makes the mouse feel smoother at the cost of some CPU (i presume?). Great for games :) Yeah it's trivial . I'm currently using 80Hz as default ( right here https://git.javispedro.com/cgit/vbados. …

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Re: how to use DOS Int 21h + 4Bh for executing a sub program?

Posted on 2022-04-16, 22:23

by

by javispedro1

in Marvin \ Software

in Marvin \ Software

the moment anything else touches that header your screwed (a packer, encryption, virus, anything that can mod the exe), you should always do it yourself than rely on magic in the header that is always manipulated by anything that wants to touch the header. What magic in the header, this is the …

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New DOS mouse driver for VirtualBox/VMware/ PS/2 mice

Posted on 2022-04-16, 20:41

by

by javispedro1

in Release Announcements

in Release Announcements

Hello, for a couple of weekends I've been trying to create a new DOS mouse driver. My intention is to do a "guest tools" for VirtualBox, at least on the level of the old Virtual PC 2004 tools. Mostly to learn something and have fun rather than anything serious. I already also have a TSR for mouting …

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Re: how to use DOS Int 21h + 4Bh for executing a sub program?

Posted on 2022-04-15, 12:34

by

by javispedro1

in Marvin \ Software

in Marvin \ Software

I remember MASM/LINK specifically has a command line argument to set the max allocation size to something else other than 0xFFFF. I also remember it's a command line argument, not a directive. But I totally forgot the name of the flag :( I always used later exemod since many linkers don't have this …

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