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Re: SBEMU: Sound Blaster emulation on AC97

Posted on Yesterday, 13:04

in Marvin \ Sound

in Marvin \ Sound

Yeah, it struggles on Pentium MMX 233 with my SBLive, last time I tried it. It was almost there in terms of performance. Then it's worth a try with MMX enabled. BTW I remember some flags in control register needs to be set to enable it - maybe that's already done by HDPMI. otherwise the CPU will …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2024-04-26, 16:18

in Marvin \ Sound

in Marvin \ Sound

It won't, most likely. Could just split it into multiple binary releases.

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2024-04-26, 16:06

in Marvin \ Sound

in Marvin \ Sound

Yeah, it struggles on Pentium MMX 233 with my SBLive, last time I tried it. It was almost there in terms of performance.

Re: Bad caps

Posted on 2024-04-26, 15:30

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This one doesn´t seem to be in any buck- / stepdown circuit (no inductor present). It´s probably some linear regulator for a 1.xy V chipset voltage. This means the chips will not be under deadly stress by RF-AC when this electrolytic deteriorates / looses capacity, but instabilities will probably …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2024-04-26, 15:26

in Marvin \ Sound

in Marvin \ Sound

is compiling in MMX support as simple as -mmmx like with GCC?

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2024-04-25, 08:59

in Marvin \ Sound

in Marvin \ Sound

wierd_w wrote on 2024-04-25, 04:12: Most systems one would find ac'97 or hda, would AT LEAST have mmx. (A small handfull of p54c systems might have ac'97, but...) A good chunk would have SSMD instructions. I want to use an sb live with an MMX 233 without using the crap creative emulation under DOS. …

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2024-04-25, 03:56

in Marvin \ Sound

in Marvin \ Sound

Does SBEMU use MMX instructions if it can? Wondering if this could lead to a speedup on Pentium MMX systems.

Re: 2024 - End of the era of Retro Computing Youtube channels?

Posted on 2024-04-11, 01:39

in Milliways

in Milliways

Google have recently removed the ability to view cached pages. They took the option off the search page a long time ago, but you could still view the page by prefixing the URL with cache: e.g. cache:www.website.com/page.html This no longer works. Now you are sent directly the current live page, …

Re: Replacement 50mm fan for Slot A cooler?

Posted on 2024-04-05, 18:12

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What do you mean by "pretty dead"? Have you tried re-lubricating it first?

Re: Bought these (retro) hardware today

Posted on 2024-03-30, 02:11

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Finally got sick of seeing a Kingston Turbochip in my watchlist so I bought one. Hopefully it works in my crappy 486 machine with broken L2 cache.

Any barebones 486-class motherboards?

Posted on 2024-03-30, 01:40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Are there any socket-3 motherboards that have as little integrated features as possible? Essentially the board would be close to an industrial ISA/PCI backplane except it would have a CPU socket, cache, minimal chipset, RAM, and BIOS. Does such a thing exist? It would make for a truly customizable …

Re: 2.5Gb NIC 98SE Support?

Posted on 2024-03-26, 20:37

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I can't even imagine a use case for 2.5G on Win 98. As noted above, the rudimentary TCP stack of 98 will struggle to handle gigabit. XP has a ground up robust stack. Most period correct Win 98 hard drives struggle to saturate even 100M links consistently. i used a 1G intel nic in my win98se box …

Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access

Posted on 2024-03-26, 20:23

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

kingcake wrote on 2024-03-26, 20:19: I don't see a github link for the board designs? i dont think it's released yet

Re: SBEMU: Sound Blaster emulation on AC97

Posted on 2024-03-26, 15:42

in Marvin \ Sound

in Marvin \ Sound

Bruno128 wrote on 2024-03-26, 08:44: vico wrote on 2024-03-25, 18:03: Bruno128 wrote on 2024-03-24, 22:01: Reports list updated. Where can I see this list of reports? OP or my sig. I figure it'd probably be a bit of extra work but could you put ✅ or ❌ for pass/fail on each one?

Re: 486 SocketBlaster building experiment - Oh my God, a difficult beast to build

Posted on 2024-03-20, 15:09

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It would also allow you to have the buck converter exposed so you can make changes without removing the CPU. thats how Sphere478 designed it https://www.vogons.org/viewtopic.php?p=1176382#p1176382 Oh, yeah I saw that. I mean to have the specific functionality of the socket blaster, 168 to 168.

Re: 486 SocketBlaster building experiment - Oh my God, a difficult beast to build

Posted on 2024-03-19, 21:50

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

feipoa went over picking best LDO for 486 https://www.vogons.org/viewtopic.php?f=46&t=54953 I would very much like to build a version with the sockets next to each other as opposed to on top of each other, like in this one you linked. It would make the whole process much easier in cases where you …

Re: Gigabyte GA-6WMMC7

Posted on 2024-03-13, 00:26

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Do you have a POST analyzer card? EDIT: didn't realize this was necro'd.

Re: 2024 - End of the era of Retro Computing Youtube channels?

Posted on 2024-03-12, 14:54

in Milliways

in Milliways

gerry wrote on 2024-03-12, 14:41: i suspect a minor joke on repeat 😀 I gotta say it is tiring to have to keep re-treading the same arguments over and over again.

Re: L2 Cache via CPU interposer?

Posted on 2024-03-11, 18:21

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It could also be useful as a way to introduce cache even for systems that can support it properly, by using more available SMD cache chips such as the ones that appeared on later socker 7 boards instead of the old DIP chips that are commonly sold fake or broken on eBay.

L2 Cache via CPU interposer?

Posted on 2024-03-11, 18:12

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Has there ever been a CPU interposer, for say, socket 1/2/3 that adds L2 cache for systems with broken/fake/nonexistent cache?

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