Re: Covox Sound Master Reverse Engineering / Replica

Posted on Yesterday, 09:23

by

by root42

in Marvin \ Sound

in Marvin \ Sound

The AVR AY looks really cool. It does. I'm still wondering how difficult (and how expensive) it would be to squeeze something like that in one of these IC packages . Unfortunately, nobody appears to sell them in small quantities. They look like the ultimate solution for chip replacements. Slightly …

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Re: Say "Hi!" to the Renovation SSI-2001!

Posted on Yesterday, 09:21

by

by root42

in Marvin \ Sound

in Marvin \ Sound

I love the idea of the card. Is the header at the top for programming the STM32? Whenever this goes into production, I would take a kit, I think. Regarding brackets: is there a plan to make a variant compatible with a standard bracket, such as this? https://www.keyelco.com/product.cfm/product_id/ …

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Re: Vogons Video Announcement Thread

Posted on 2020-02-22, 11:47

by

by root42

in Milliways

in Milliways

Let's Code MS DOS 0x11: The Mysterious VGA Mode X https://youtu.be/GVvr7SXM0XM

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Re: What retro activity did you get up to today?

Posted on 2020-02-22, 11:47

by

by root42

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Met some Vogons: AEBF1C67-B5DE-4E4E-A60B-DD4AB389899B.jpeg MAME just within the last month or two added support for Psion Series 5mx emulation. :) Not sure if MAME has a ROM dump from a flat Series 5. If memory serves, there's a utility you can download to dump it, and then you would need to …

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Re: Covox Sound Master Reverse Engineering / Replica

Posted on 2020-02-22, 08:15

by

by root42

in Marvin \ Sound

in Marvin \ Sound

The AVR AY looks really cool.

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Re: What retro activity did you get up to today?

Posted on 2020-02-21, 07:16

by

by root42

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Met some Vogons: AEBF1C67-B5DE-4E4E-A60B-DD4AB389899B.jpeg LOL - that's great! I used to have a Psion Series 5 - several in fact as I kept on breaking the screen but I had accidental damage cover so I didn't have to keep paying for the repairs. Wish I had kept is now I've become a retro/vintage …

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Re: What retro activity did you get up to today?

Posted on 2020-02-20, 22:27

by

by root42

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Met some Vogons: Filename AEBF1C67-B5DE-4E4E-A60B-DD4AB389899B.jpeg File size 194.21 KiB Views 131 views

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Re: Chess Expansion Card ISA - The Final Chess Card - 6502 Co-Processor

Posted on 2020-02-19, 10:09

by

by root42

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes, the card was a standalone 65c02 computer. For the C64 it would have great benefits, since the CPU was clocked pretty fast and came with its own ROM and RAM. On the PC it would be rather useless, in my opinion, since the card was rated around 1600 ELO. This should have been possible with PSION …

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

Posted on 2020-02-18, 19:30

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by root42

in Marvin \ Software

in Marvin \ Software

Well, I think mobygamer said it in the making of video: he wanted him to use a86 only as a learning tool, but suddenly David had written the whole game in it already. 😀 Determination goes a long way...

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

Posted on 2020-02-18, 17:47

by

by root42

in Marvin \ Software

in Marvin \ Software

Watcom is a great idea. Does it emit real mode code as well? Planet X3 was written using notepad and a simple assembler... so most important is the coder, the tools come second. 😉

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

Posted on 2020-02-18, 15:40

by

by root42

in Marvin \ Software

in Marvin \ Software

Same here. Currently C++ for work. With some Java, Python and the like sprinkled here and there. C, Basic and maybe some ASM for DOS for a hobby. :) Also doing Clojure for fun. I code in Emacs with rtags and some other modules at work (to navigate a millions of lines project). But switch to IntelliJ …

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

Posted on 2020-02-17, 14:18

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by root42

in Marvin \ Sound

in Marvin \ Sound

Prototype stainless steel bracket. I will have enough of these prototypes soon for the people who ordered their PCBs with me. I will send out emails. The prototype has ONE error though: the leg which attaches to the hole below the volume wheel is misplaced by 3mm. So the bracket will hold in place …

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

Posted on 2020-02-17, 14:16

by

by root42

in Marvin \ Sound

in Marvin \ Sound

Are there any pin compatible alternatives to TEA2025 that sound cleaner and are more durable? I don't think there are pin compatible ICs to the TEA2025. We are stuck with it on the Snark Barker. But it is common and cheap enough that it should last us for a while... :) In 10 years we can print our …

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Re: GLX Player the only XT player ? Check Mod Master...

Posted on 2020-02-17, 09:35

by

by root42

in Marvin \ Sound

in Marvin \ Sound

I go through high quality speakers to record the headset output, because my Laptop micro input does not like at all the Direct Line Out connection. I know there are issue with impedance, but anyone tried to record a GUS ? The result is "nice" on the sound blaster doing the same thing. Mic level is …

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Re: SVGA/VESA Emulator for DOS?

Posted on 2020-02-16, 15:25

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by root42

in Marvin \ Software

in Marvin \ Software

Sci-Tech Display Doctor or UNIVBE. But that doesn't work, it just is a driver for cards that support svga/vesa. What I want to do is to run nfs on VGA-ONLY video modes. Anyway when I run it I get this: "Supported video card not detected - installation aborted" Also wikipedia says "UniVBE requires a …

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Re: Dungeon Master and Tandy Sound

Posted on 2020-02-13, 15:17

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by root42

in Marvin \ Sound

in Marvin \ Sound

Mobygames says "Tandy/PCJr" in its specs: https://www.mobygames.com/game/dungeon-master/techinfo That would suggest the SN76489.

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Re: Tandy 3 Voice Sound - SN76489 ISA Soundcard Project

Posted on 2020-02-13, 08:46

by

by root42

in Marvin \ Sound

in Marvin \ Sound

You can always use the TSR or EMM386 to remap the port. Since basically all Tandy games are real mode, this should be no problem.

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Re: Tandy 3 Voice Sound - SN76489 ISA Soundcard Project

Posted on 2020-02-12, 13:46

by

by root42

in Marvin \ Sound

in Marvin \ Sound

Try this, keropi: ftp://ftp.oldskool.org/pub/TandySoundPatches/

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Re: Is ST486DX2-80GS cpu a cyrix cpu?

Posted on 2020-02-10, 11:39

by

by root42

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Anonymous Coward wrote on 2020-02-10, 10:21: My understanding is integer performance of Cyrix 486 is a little worse than Intel, while floating point is a little stronger. Funny, I remember it being the other way around. Quake performance was definitely worse on my 6x86 than on my friend's P120 …

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Re: Vogons Video Announcement Thread

Posted on 2020-02-10, 08:26

by

by root42

in Milliways

in Milliways

EDIT: Apparently my memory is correct but this 2600 version looks better than the old 800XL version in many ways so I guess it is a new port from another source? This is written from scratch by Oscar Toledo, aka nanochess (https://nanochess.org/). He took the arcade or 800XL version as inspiration. …

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