Re: Good specs for late 1998-early 1999 Pentium 200 MMX

Posted on 2019-11-22, 05:22

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

AlessandroB wrote: where we found a ICBM in EU? You left us only short range missiles 😀 You can go here. I recommend you call ahead of time. https://www.google.com/maps/place/57%C2 ... d54.141481

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Re: How to go about putting thermal paste on ceramic Pentiums?

Posted on 2019-11-22, 04:58

by

by gdjacobs

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That's what I did earlier before I made this post, actually, but I felt like it wasn't enough. The surface area of that CPU has to be as big as it is for some reason, and I suspect that having a dot in the center, even when it spreads out, could possibly leave things like the CPU's cache out of …

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Re: Cmedia CMI8738 - maybe its Biggest Secret

Posted on 2019-11-22, 04:40

by

by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

most probably it was in "Legacy-DMA read", because that mode I tested on VT8239A and it's working. Anyway, I will try to make as I said "Swiss-army-knife" set of tools including tool to ask the sound card to tell you the exact mode it's using. besides clear out the situation with CMI8738, which is …

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Re: WavePi: Use Raspberry pi (2/3/4) as a AIO MIDI synth

Posted on 2019-11-22, 04:37

by

by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

The Pi 4 is still a PWM synthesis DAC, no? Have they upped the switching frequency, improved the output filter, or both?

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Re: Sound Leader Pro 16E (ESS688) QUESTION

Posted on 2019-11-22, 04:31

by

by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

Do you have playback under Windows through the MU80 or through the sound card?

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Re: Munt on a Rpi 3 A+ ?

Posted on 2019-11-22, 00:18

by

by gdjacobs

in MT-32 General

in MT-32 General

Munt is not particularly RAM limited. Of course, if you want to use a sample based synth as well, you'll be unable to use some of the huge soundfonts that are out there.

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Re: Cmedia CMI8738 - maybe its Biggest Secret

Posted on 2019-11-18, 06:37

by

by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

ESS Solo has its own i8237-style inside the chip, they called that TDMA (Transparent DMA) as it doesn't depend on the i8237 inside the chipset, but more about this will be discussed here: https://www.vogons.org/viewtopic.php?f=62&t=70375 That sounds like a rather clever solution, although it did …

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Re: where is dosbox.conf file in Linux ???

Posted on 2019-11-18, 06:26

by

by gdjacobs

in DOSBox General

in DOSBox General

The default config directory is ".dosbox". The configuration files themselves have a format of dosbox-VER.conf where VER can be 0.74, SVN, etc.

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Re: Spam, spam, spam

Posted on 2019-11-18, 06:07

by

by gdjacobs

in Milliways

in Milliways

piter85

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Re: Cmedia CMI8738 - maybe its Biggest Secret

Posted on 2019-11-17, 18:41

by

by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

i am 99.9% sure Kamerat is mistaken, because for FM801 mentioned I don't know (if I can find any datasheets I will check more), but the other one ALS4000 - has emulation mode that works even on later VIA South Bridges like VT8237/9 (tested by me), but that's not DDMA. So, Kamerat is welcomed to …

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Re: Most user friendly Programming Language, Tools and IDE for developing software for DOS in 2019?

Posted on 2019-11-17, 18:23

by

by gdjacobs

in Marvin \ Software

in Marvin \ Software

Nah, have some fun! https://almy.us/teco.html https://esolangs.org/wiki/Brainfuck_implementations Or just stick with FreePascal, OpenWatcom, or another complete compiler with good DOS support, inline assembly, etc. I mentioned Forth which is interesting because it's very space efficient, self …

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Re: Cmedia CMI8738 - maybe its Biggest Secret

Posted on 2019-11-17, 07:02

by

by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

For some reason, Kamerat was able to initialize and use some cards on a vt8233 south bridge with DDMA mode. VIA may not test it, they don't advertise it, but they may not have deleted DDMA functionality from the ASIC, at least in the early V-Link south bridges. https://www.vogons.org/viewtopic.php …

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Re: Non Creative Sound Cards for WinXP

Posted on 2019-11-17, 06:50

by

by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

There are several great m-audio cards for cp. I own this one for example and it is amazingly good. So long as people understand, this card is not directly equivalent to a Creative card. The ICE chipset is designed around studio quality music recording and playback with minimal or no internal …

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Re: What to do when Windows 7 support ends in a few weeks time?

Posted on 2019-11-17, 06:26

by

by gdjacobs

in Milliways

in Milliways

Nonetheless, availability of Setup mode would be best. It would allow all the Gentoo and Arch guys to boot directly into custom EFI applications with all the advantages of Secure Boot (once the key store is loaded). Exactly what are you proposing with "Setup mode"? Keys can already be loaded to the …

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Re: Could you give me advice on buying a new computer?

Posted on 2019-11-15, 20:54

by

by gdjacobs

in Milliways

in Milliways

Intel486dx33 wrote: I could not live with out my iPad. I am so hooked on this thing. I tried to get rid of it before but I just keep going out and buying another one. You need to upgrade your compulsions. Buy more retro gear!

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Re: What to do when Windows 7 support ends in a few weeks time?

Posted on 2019-11-15, 20:51

by

by gdjacobs

in Milliways

in Milliways

Then what the hell are we talking about, here. If they can forge the signature on a certificate, they can forge the signature on a bootloader (or more to the point, an illicit hypervisor). But that would be much more difficult, because it's not a fixed target. I'm no cryptographer, so take this …

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Re: What to do when Windows 7 support ends in a few weeks time?

Posted on 2019-11-15, 05:53

by

by gdjacobs

in Milliways

in Milliways

The current Microsoft key has been in use since 2012, so people have had about 7 years to bruteforce it now. Then what the hell are we talking about, here. If they can forge the signature on a certificate, they can forge the signature on a bootloader (or more to the point, an illicit hypervisor). …

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Re: How to link two routers together

Posted on 2019-11-15, 05:34

by

by gdjacobs

in Milliways

in Milliways

Wireless extender mode is a bad idea. Contention will absolutely kill your throughput.

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Re: Which card should I pair with GUS?

Posted on 2019-11-14, 14:31

by

by gdjacobs

in Marvin \ Sound

in Marvin \ Sound

Is the Jazz16 card you have PAS16 compatible? AFAIK there were some issues there with some cards, same with the Sound Blaster Pro compatibility. If it's compatible with both, that would be my pick. Two non-Creative 16-bit audio standards in one system with good DOS support. That Jazz16 chipset …

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Re: What to do when Windows 7 support ends in a few weeks time?

Posted on 2019-11-14, 14:29

by

by gdjacobs

in Milliways

in Milliways

you merely have to forge a certificate that can be validated by one of the known keys. Then your fake certificate can provide any key to validate the actual payload. That's computationally not a small task so it's no glaring weakness. Additions to the DBX can be handled by a standardized UEFI …

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