Re: BLASTERBOARD : A new SB 2.0-compatible ISA sound card

Posted on 2020-03-05, 20:13

by

by root42

in Marvin \ Sound

in Marvin \ Sound

Hello Eugene, I've received my board yesterday, so thank you! And btw, I've read that the original SB 2.0 was apparently one of the few soundcards that needed a -5V rail? Would this be the case for the Blasterboard as well, or can it be operated without one? I‘d wager a no. The Blasterboard is an …

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Re: Tandy 3 Voice Sound - SN76489 ISA Soundcard Project

Posted on 2020-03-05, 13:30

by

by root42

in Marvin \ Sound

in Marvin \ Sound

matze79 wrote on 2020-03-05, 12:52: its packed. Ok, now please tell me with what packer so I can try to unpack. 😁 But I wonder why it has the correct byte at the same offset...? I have little hopes the unpacking will help. But am welcoming suggestions! Or maybe someone has a working binary?

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Re: Tandy 3 Voice Sound - SN76489 ISA Soundcard Project

Posted on 2020-03-05, 03:56

by

by root42

in Marvin \ Sound

in Marvin \ Sound

matze79 wrote on 2020-03-04, 21:58: Have you unpacked the Prince.exe before hexedit ? I didn't. Are you sure it's packed? At the address there was a matching byte. Hence I would assume it was fine.

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Re: Looking for volunteers with XT / 286 systems with a co-processor

Posted on 2020-03-04, 20:32

by

by root42

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yeah, I suspect that 287XL is just a 387SX, but want to try my detection code if anyone has one, to be sure. Anyway, I hope I'm not breaking any rules but here's a ZIP with 2 COM files to run. Both will print out about 20 small integer numbers, just write those down and report back. If free time is …

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Re: Tandy 3 Voice Sound - SN76489 ISA Soundcard Project

Posted on 2020-03-03, 21:33

by

by root42

in Marvin \ Sound

in Marvin \ Sound

I edited PRINCE.EXE from the 1.0 release, and at the given position changed the 75h to EBh. But no luck. I get Adlib only sound. Any ideas? Bildschirmfoto 2020-03-03 um 22.31.33.png EDIT: "prince vga tandy" leads to sound, but it seems monophonic. could the PC beeper (which is attached to the TNDY …

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Re: Tandy 3 Voice Sound - SN76489 ISA Soundcard Project

Posted on 2020-03-03, 15:46

by

by root42

in Marvin \ Sound

in Marvin \ Sound

matze79 wrote on 2020-03-03, 15:34: Yes, i`m pretty sure it will do tandy checking. Ok, then I will try again with PoP 1.0 and patch the binary.

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Re: Tandy 3 Voice Sound - SN76489 ISA Soundcard Project

Posted on 2020-03-02, 22:43

by

by root42

in Marvin \ Sound

in Marvin \ Sound

Yeah for Prince of Persia 1 you need to hexedit the EXE File.. Just unpack the EXE and Hexedit. http://nerdlypleasures.blogspot.com/2015/08/prince-of-persia-dos-10-sound-card.html That concerns PoP 1.0. I was using version 1.3 which comes with a setup program to pick the sound card. I will …

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Re: Tandy 3 Voice Sound - SN76489 ISA Soundcard Project

Posted on 2020-03-02, 20:44

by

by root42

in Marvin \ Sound

in Marvin \ Sound

https://youtu.be/l3cyuRbzKCM this sounds like PC-Speaker only. You need to PATCH Prince.exe for Tandy Sound. EDIT: Ah ok its POP2.. but it should also work. I had 3 Voice Sound with this Game. Hm. I used PoP 1.3 with Tandy as music. Same for PoP2. But I also thought it sounded like PC speaker. I …

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Re: Tandy 3 Voice Sound - SN76489 ISA Soundcard Project

Posted on 2020-03-02, 14:39

by

by root42

in Marvin \ Sound

in Marvin \ Sound

What device do you use for recording ? Were you referring to me? In these new videos I use a 3 channel Behringer USB mixer to capture the audio. Before I was using the OSSC with a USB3 HDMI capture card. I added a few more videos to my second channel using the new card: https://youtu.be/l3cyuRbzKCM …

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Re: Paradise PVC4 CGA card : looking for video BIOS

Posted on 2020-03-01, 23:13

by

by root42

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Did you test the RAM chips? And did you check the data lines, if you think that one bit is always 1.... I see two bodge resistors near the RAM chips. Where do they lead to?

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Re: Tandy 3 Voice Sound - SN76489 ISA Soundcard Project

Posted on 2020-02-29, 16:43

by

by root42

in Marvin \ Sound

in Marvin \ Sound

And one sample of the new card, Populous: https://youtu.be/3uMBLuBFr_g Apart from me being confused by the labelling of the components, it turned out really well! Thanks, matze!

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Re: Tube Time: Announcing The Snark Barker, a 100% Compatible SB 1.0 Replica!

Posted on 2020-02-29, 08:29

by

by root42

in Marvin \ Sound

in Marvin \ Sound

The choice of the two resistors for each voltage divider would also have to take into account whether the volume pots are linear or logarithmic, i.e. whether the goal is 70% of the input voltage or 70% perceived volume. You could try both variants by using a potentiometer and tuning it to the …

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Re: Tandy 3 Voice Sound - SN76489 ISA Soundcard Project

Posted on 2020-02-28, 19:28

by

by root42

in Marvin \ Sound

in Marvin \ Sound

Live Stream starting in 2 minutes 😉

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Re: L2 Cache on an ISA board?

Posted on 2020-02-27, 20:09

by

by root42

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That wouldn’t work now, would it? The extra pins are probably for addressing. Well maybe it would work, but you would waste capacity of the SRAM. I would loom up the board and its manual and then try to hunt down the correct ICs. Edit: http://ps-2.kev009.com/pcpartnerinfo/ctstips/fa2a.htm Edit 2: …

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Re: Freezing Issue: Monkey Island 2 'Ultimate Talkie Edition'

Posted on 2020-02-27, 14:25

by

by root42

in Marvin \ Software

in Marvin \ Software

collector wrote on 2020-02-27, 13:46: Note that this should be in Marvin. Marvin, the Paranoid Android As per the description of this forum: "Getting old DOS games working on modern hardware." A P3 800 is modern? Arguably it’s at least a youngtimer. Edit: I am stupid. Yes, this forum is for modern …

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Re: Jerky scrolling in Commander Keen 6

Posted on 2020-02-27, 10:30

by

by root42

in Marvin \ Software

in Marvin \ Software

ynari wrote on 2020-02-27, 09:45: root42 wrote on 2020-02-27, 09:35: Maybe it's simply bad VGA compatibility in the Ati. Keen uses some sophisticated EGA and VGA features. Yep, see https://gona.mactar.hu/DOS_TESTS/. Try a different card, or use DOSBox, Keen 4-6 under it is indistinguishable from …

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Re: Jerky scrolling in Commander Keen 6

Posted on 2020-02-27, 09:35

by

by root42

in Marvin \ Software

in Marvin \ Software

Maybe it's simply bad VGA compatibility in the Ati. Keen uses some sophisticated EGA and VGA features.

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Re: Need help with the performance of Adaptec 1540CF

Posted on 2020-02-27, 08:19

by

by root42

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Have you checked the SCSI2SD Wiki? http://www.codesrc.com/mediawiki/index.php/SCSI2SD It seems that 1-2 MiB/s is about to be expected. You need the v6 hardware for better performance.

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Re: ATX2AT Smart Converter - Live on Kickstarter!

Posted on 2020-02-26, 10:01

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by root42

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

xsecret wrote on 2020-02-26, 09:33: I ordered a bit more quantities. Just drop me an email at dev // x86 - fr and I'll send you a message when they're ready 😀 Cool! Looking forward to the finished product! I hope you are recovering well!

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Re: Need help with Philips SAA1099 sound chip.

Posted on 2020-02-25, 22:05

by

by root42

in Marvin \ Sound

in Marvin \ Sound

Well to be fair: the SSI Innovation was a PC card of the late 80s. It wasn’t widespread, but it was commercially available! I'd obviously love to see SSI-2001 support, as well, but one step at a time! The SAA1099/CMS/Gameblaster is definitely a good choice for a game in the Space Invaders genre. I …

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