Re: Doom 'MBF' for DOS, Maintenance release 2.04

Posted on 2021-08-05, 16:31

by

by Gmlb256

in Release Announcements

in Release Announcements

Has anyone noticed that MAP02 music on Final DOOM TNT: Evilution sound slightly different in comparison to the original DOS executable that was shipped with the game? There is one note that doesn't seem to play on MBF.

---

Re: Tips to be a pro fleebay seller.

Posted on 2021-08-05, 15:28

by

by Gmlb256

in Milliways

in Milliways

Not really about prices being jacked up, but I remember that 4 years ago I bought on eBay one SB16 CT2230 which was labeled as a SB16 CT2940 Vibra 16S and said it was untested. While the sound card was indeed a SB16 and worked fine it was a bit misleading to label it as a Vibra 16S, probably the …

---

Re: SB32 ct3600 vs AWE64 ct4500

Posted on 2021-08-05, 14:10

by

by Gmlb256

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I heard somewhere that some SB32 had an AWE64 chip, if that's so do you think it would translate into a less noisy sound quality? There is one SB32 model that uses the AWE64 chip that I know and it is the CT3670, this one doesn't use any propietary port for memory upgrade. The CT4500 most likely …

---

Re: SB32 ct3600 vs AWE64 ct4500

Posted on 2021-08-05, 13:45

by

by Gmlb256

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

1 - Does the SB32 really support the MT32 compatible games? Both cards should support MT32 emulation thru the AWEUTIL, however the MT32 emulation is far from perfect and only works well with games that doesn't use any custom samples. 2 - Are both on par with 16-bit 44.1khz playback? Feature-wise …

---

Re: Matrox Millenium G200 PCI Duke3D VESA 2.0 resolutions.

Posted on 2021-08-04, 19:16

by

by Gmlb256

in Marvin \ Video

in Marvin \ Video

Any resolution under 640 in VESA mode Matrox cards never supported these out of the box, but G200 has unofficial TSR which adds uncommon res modes. Got it, do you know of any cards that do? Besides the Riva 128? The S3 video cards can work with VESA resolutions lower than 640 without UniVBE, …

---

Re: Windows 3.1 on FreeDOS

Posted on 2021-08-04, 13:57

by

by Gmlb256

in Release Announcements

in Release Announcements

I know that it is a proof of concept, but one thing that I didn't see anywhere in those links is whether permanent swap file and/or 32-bit file access works when using Windows 3.1 on FreeDOS. IIRC, the I/O performance will be slower if either of them are not supported when running Windows 3.x, …

---

Re: S3VBEFIX - PC\MS-DOS TSR fix for S3 VESA 2.0 video BIOS

Posted on 2021-08-04, 00:59

by

by Gmlb256

in Release Announcements

in Release Announcements

I've found a bug when trying to use a VESA video mode on Chasm: The Rift while running S3VBEFIX it causes the computer not to display anything and freeze. It is when attempting to use Int 10h AX=4F05H (Display Window Control) after changing the resolution. The culprit is in the bankproc routine …

---

Re: New MS-DOS Games Launcher / Menu System App

Posted on 2021-08-03, 18:22

by

by Gmlb256

in Release Announcements

in Release Announcements

Is this still being worked on? I'm getting an "Out of String Space" error when i try to add more games to my database comprised of 336 games, at the moment. My launchbx.txt file is 79.873 bytes long. I was expecting this would support thousands of games in the database. I used to use this launcher …

---

Re: Voodoo 1 displays garbage

Posted on 2021-08-03, 16:57

by

by Gmlb256

in Marvin \ Video

in Marvin \ Video

This possibly could be due to using the Voodoo Graphics card with a very fast CPU since the card is CPU speed sensitive. Do you have a much slower system to check if the issue is there?

---

Re: Your least used complete vintage system

Posted on 2021-08-03, 15:37

by

by Gmlb256

in Milliways

in Milliways

I'm currently have two old systems, which are a Socket 7 system with a K6-2+/450 CPU and a Slot 1 system equipped with a PIII-750 CPU. The Slot 1 system gets hardly used because I'm mostly focused on DOS and it is mostly as a testbed system.

---

Re: Creative Vibra 16S question

Posted on 2021-08-03, 00:47

by

by Gmlb256

in Marvin \ Sound

in Marvin \ Sound

Seems that the music is playing through the OPL3 chip on the SB16 since you mentioned Wolfenstein 3-D. The music should normally play on both speakers if the output is mono. As mentioned before make sure that the left and right gain for the MIDI volume (the OPL3 FM synthesizer chip volume is tied to …

---

Re: SetMul - Multiplier control for VIA C3 / AMD K6+7+8 Mobile / Cyrix 5x86

Posted on 2021-08-02, 23:22

by

by Gmlb256

in Release Announcements

in Release Announcements

I'm looking for a way to disable CPU cache, before the memory manager loads. A lot of folks use QEMM and DPMI. May be a worthwhile feature to add. SetMul works fine with QEMM loaded. Just avoid loading QDPMI on CONFIG.SYS unless you really need it, since it has incompatibilities and most DOS …

---

Re: font problem under DOS?

Posted on 2021-08-01, 18:01

by

by Gmlb256

in Marvin \ Software

in Marvin \ Software

This issue is related to the 8x14 font which was removed on certain video cards as a way of freeing up space for VBE BIOS implementations. The S3 Virge/DX that you mentioned likely have a VBE 2.0 BIOS implementation (which lacks these fonts) instead of the more common VBE 1.2 BIOS. For these cards …

---

Re: The myth of the vertical retrace interrupt on EGA/VGA

Posted on 2018-05-13, 02:30

by

by Gmlb256

in Marvin \ Video

in Marvin \ Video

The TSR program that I wrote is now a proper utility for S3 video cards, now it better cooperates with other TSR that hooks the INT 10h and consumes less memory. Also added a switch that allows the vertical retrace interrupt to be disable for convenience. May need a bit more testing to see if it is …

---

Re: The myth of the vertical retrace interrupt on EGA/VGA

Posted on 2018-05-11, 15:14

by

by Gmlb256

in Marvin \ Video

in Marvin \ Video

I have decided to investigate a bit further about vertical retrace interrupt on S3 video cards and it seems that chips prior to Trio32 and Trio64 doesn't have the vertical retrace interrupt switch at the extended register 32h according to some S3 datasheets I have found (it's the same site where I …

---

Re: The myth of the vertical retrace interrupt on EGA/VGA

Posted on 2018-04-17, 14:28

by

by Gmlb256

in Marvin \ Video

in Marvin \ Video

Glad I could help! I wonder if the same goes for NV and other more modern GPUs... they don't have a jumper, and IRQ is not enabled by default. But perhaps there is a way to enable the IRQ via software. ATi seems to have it enabled by default anyway. I've been wondering about that too for other …

---

Re: VOGONS Driver Library

Posted on 2018-04-13, 21:15

by

by Gmlb256

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello! S3 Refresh 2.37. This version works on ViRGE/DX and ViRGE/GX chips at least, I don't know if it does work on later S3 chips since I only have two ViRGE/GX cards. Found this version on the AOpen website when searching a Windows 3.x driver.

---

Re: The myth of the vertical retrace interrupt on EGA/VGA

Posted on 2018-04-12, 01:36

by

by Gmlb256

in Marvin \ Video

in Marvin \ Video

Hi, can you please also make an utility to enable CGA/HGC emulation ? There's something about this written on page 16-22 of the ViRGE documentation. This is really cool ~ I fully agree! :D Thanks! For the CGA/HGC emulation, that CRTC register is a standard EGA/VGA register unlike the register I set …

---

Re: The myth of the vertical retrace interrupt on EGA/VGA

Posted on 2018-04-11, 21:17

by

by Gmlb256

in Marvin \ Video

in Marvin \ Video

Did some test on the program: - Trident TGUI9680-1 1MB: no IRQs although the BIOS assign IRQ to the card. - AOpen PT 75 Plus II (S3 Virge/GX 4MB): no IRQs, this card doesn't have a trace from the S3 chip to the interrupt pin even through the BIOS has assigned a IRQ to it. - Compaq S3 Virge/GX 2MB: …

---

Re: The myth of the vertical retrace interrupt on EGA/VGA

Posted on 2018-04-11, 15:44

by

by Gmlb256

in Marvin \ Video

in Marvin \ Video

Hello. Found this thread interesting. S3 does supports the vertical retrace interrupt, however it is disabled by default. To enable it the extended S3 CRTC register 32h bit 4 must be set to 1 (this register must be unlocked before changes can be made), and make sure that the interrupt pin of the PCI …

---