Re: S3/VIA UniChrome good for non-DOS retrogaming?

Posted on 2014-03-12, 18:52

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi Ok, so first thing tomorrow morning I'm gonna benchmark instead of testing some games. Anything else beside 3DMark2000? Great battle tomorrow night: UniChrome DDR 333 Versus UniChrome Pro DDR2 533. I'm a sucker for the underdogs, and these they both are. I'm very curious about this, very …

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Re: S3/VIA UniChrome good for non-DOS retrogaming?

Posted on 2014-03-12, 04:19

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

LO I have a high class ECS KM800 board, this one here: http://www.ecs.com.tw/ECSWebSite/Product/Product_Detail.aspx?DetailID=574 I was given it, supposedly dead but working okay, the Compaq had a dead PSU. The on-board video works in WIN98SE using the BIOSTAR sourced reference driver found here: …

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Re: Recommend a PCI soundcard with SPDIF input, XG MID and DOS compatible

Posted on 2014-02-14, 09:16

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi I checked out the junk, and nothing other than what has been said already was found. The problem with most of these solutions is the digital input and the XG component is probably easier in the long run using an external MU10 or other midi module. Only the DMX 6fire so far, or any other ICE1712 …

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Re: Recommend a PCI soundcard with SPDIF input, XG MID and DOS compatible

Posted on 2014-02-13, 21:34

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi I have tried YMF754 and YMF724. Both have SPDIF but i am not sure are they DOS compatible. Other option is an sound card with XG daughterboard. One such card with SPDIF is Turtle Beach Pinnacle, but its DOS compatibility is only limited to Internal MIDI, i think, as General MIDI device. This …

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Re: Recommend a PCI soundcard with SPDIF input, XG MID and DOS compatible

Posted on 2014-02-13, 20:47

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi One Yamaha based card I have has a digital input, that's the Hoontech Digital-XG. I don't recall testing it in Linux and can't explain how well it works there. You may find this particular card hard to find. One alternative option which I did test once but long ago is the well supported ICE1712 ( …

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Re: Worst DOS video card?

Posted on 2014-02-10, 09:40

by

by sklawz

in DOS

in DOS

Here are the results. The OAK OTI087 is a top performer after all, the TRIDENT really is poor but overall the S3 is the worst DOS performer. S3 really didn't care about DOS. I used a fast computer to test these devices, I can't begin to imagine how bad it would be trying to play with a slower CPU. …

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Re: Worst DOS video card?

Posted on 2014-02-10, 08:34

by

by sklawz

in DOS

in DOS

lo swaaye wrote: I wonder if Verite runs Doom slower than Oak....... I will test those seriously hot cards posted earlier using the method here: http://www.complang.tuwien.ac.at/misc/doomben … html#submission but I don't have a VERITE card nor do I know if it's a good test or not. More later. Bye

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Re: Worst DOS video card?

Posted on 2014-02-09, 05:30

by

by sklawz

in DOS

in DOS

Hi I threw out most of the old junk over 10 years ago but there are still some bits hanging around. here I present some classics from the early '90s. First a worthy challenger to the title of worst DOS VGA card, the TRIDENT: http://imagizer.imageshack.us/v2/280x200q90/849/1nyh.jpg My personal …

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Re: Worst DOS video card?

Posted on 2014-02-08, 17:28

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by sklawz

in DOS

in DOS

lo I think an OAK technology VGA deccelerator would make a Trident look pretty slick. Not sure about REALTEK VGA, sounds a bit modern to me 😀 Cya

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Re: OPL recording problem

Posted on 2014-02-07, 00:08

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi You can see how simple it is. I see how simple it is. In fact, the exact same method is used by LucasArts' iMUSE driver, which uses a 291+1713/5632 Hz timer to play back Standard MIDI Files of arbritrary tempo. It will result in no error accumulating over time, but I fail to see how this would …

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Re: OPL recording problem

Posted on 2014-02-06, 22:59

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

hi My tests were done with just power on and no BLASTER initialisation whatsoever. That would suggest that the synth portion of the chip isn't managing the OPL3 clock generation/division, at least. It does demonstrate that those are the default frequencies, yes. What it doesn't tell though, is …

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Re: OPL recording problem

Posted on 2014-02-06, 22:32

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi. Creating an accurate clock is trivial using an NCO. E-MU were or are specialists in this technology, it's fundamental to how their sample based synthesis works. I think the idea is sound. I don't personally know enough about the inner workings of the EMU8000 to speak intelligently about the …

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Re: OPL recording problem

Posted on 2014-02-06, 20:30

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

hi If the only clock on the EMU is that 45158400 XTAL then it's possible that they synthesized the 14318181 clock using an numerically controlled oscillator (adder) followed by a PLL (multiplier). The conversion factor from 45.1584 MHz to 14+7/22 MHz would be 3+481/3125 = 3.15392. It would be …

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Re: OPL recording problem

Posted on 2014-02-06, 06:22

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

hi UPDATE: From inspection B30 is not connected and OSC doesn't enter the board. Exactly. If only it were that simple, right? ;) If the only clock on the EMU is that 45158400 XTAL then it's possible that they synthesized the 14318181 clock using an numerically controlled oscillator (adder) followed …

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Re: OPL recording problem

Posted on 2014-02-06, 01:31

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi Does the ISA OSC signal enter the EMU8000? We may speculate that the EMU syncs it's clocks to this signal also and regenerates it for the YMF262 embedded in the CT1747? You need more information. Bye-bye UPDATE: From inspection B30 is not connected and OSC doesn't enter the board.

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Re: OPL recording problem

Posted on 2014-02-06, 01:16

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi it's 14.33 MHz. Thanks-much. So, the EMU8000 is doing non-integer frequency division - something else I'd thought improbable. Go figure. :dead: The frequency is most likely 14,318,181 as anticipated. Where it comes from is unknown, the track disappears under the 8-bit bus transceiver. The counter …

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Re: OPL recording problem

Posted on 2014-02-06, 00:04

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

lo Cloudschatze wrote: sklawz wrote: The I2S word clock is ~49.7 Khz pin 100 on a CT2760 REV. 3 Nice. I hadn't expected that. 😀 Is there any chance that you can measure the frequency at pin 1 of the CT1747 as well? it's 14.33 MHz. bye-bye

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Re: OPL recording problem

Posted on 2014-02-05, 08:57

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

hi The I2S word clock is ~49.7 Khz pin 100 on a CT2760 REV. 3 bye

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Re: EC251 InterWave Audio Card

Posted on 2014-02-01, 18:51

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi Ultimately this isn't a good card for games as it doesn't have enough memory and the on-board ROM isn't the best since the reference design chose the cheapest option. The Programmer's guide has this to say about the ROM: table-2.1.jpg In conclusion, the card is what it is and unlike a lot of the …

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Re: EC251 InterWave Audio Card

Posted on 2014-02-01, 11:23

by

by sklawz

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi The EC251 doesn't ship with MEGAEM, that's a Gravis only feature. It does come with IWSBOS though and this actually appears to be required, however, I don't know how and whether I can make it work. I will look at this later. Bye-Bye :-) EDIT: UPDATE So my memory isn't 100% accurate but you can …

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