Re: Does anyone own a MISTer FPGA and how is it?

Posted on 2023-10-07, 21:16

by

by Shreddoc

in Console & Arcade Emulation

in Console & Arcade Emulation

Almost all of the newer PC-alike console generations (including PS2, Xbox1, and anything newer) would be arguably pointless to have on FPGA. The architectures don't suit. The complex syncs of earlier generations, replicated so well in FPGA capabilities, have been supplanted in later console …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-10-05, 21:13

by

by Shreddoc

in Marvin \ Sound

in Marvin \ Sound

^^ that's a neat little idea. I built and tested 3 of my spare PCBs (into PicoGUSes, obvs) then sold them locally, to recoup my costs - albeit at a cost of many hours of work on my part! But I screwed another one up - lifted a track, by way of idiocy - so I still have that board spare, for such …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-09-23, 20:47

by

by Shreddoc

in Marvin \ Sound

in Marvin \ Sound

The new JLC build sounds cool, looking forward to seeing. A few dollars here or there doesn't make much difference, for what its worth, given that the entire project is a massive bargain at any conceivable price, compared with how much$ original products (or even modern remakes) cost for even half …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-09-13, 23:36

by

by Shreddoc

in Marvin \ Sound

in Marvin \ Sound

I got simultaneous joystick and GUS support working a few days ago, so I'm starting to get into multiple functionalities at once (I'm still perfecting joystick support - there's a lot of wandering in some titles due to timing issues). Simultaneous MPU-401 and GUS emulation are likely possible since …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-09-13, 23:03

by

by Shreddoc

in Marvin \ Sound

in Marvin \ Sound

That reminds me, I need to make the 3.5mm to MIDI adapter, so I can start playing with that aspect of the PicoGUS. I have been following the projects general updates over the past couple months, e.g. the sound module code updates, and the addition of USB input functionality - very cool. It is nice …

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Re: Vogons users, how do you deal with anxiety?

Posted on 2023-09-02, 22:16

by

by Shreddoc

in Milliways

in Milliways

I am afraid that you are only permitted to eat items drawn by Andy Warhol (!!). So, for you it is bananas, some donuts, and yes, lots of soup. 😁

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Re: Market value for popular or rare classic computer hardware

Posted on 2023-08-25, 05:16

by

by Shreddoc

in Milliways

in Milliways

It's a small pool of collectors indeed that will tolerate ebay's fraud, fees and principles enough to sell there. No wonder the market there seems so limited, and prices so inflated.

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Re: 3dmark99 MegaThread

Posted on 2023-08-23, 21:31

by

by Shreddoc

in Marvin \ Video

in Marvin \ Video

I am looking for " 3DMark_99_max_fix.zip ", which is a patch to allow 3dmark99 to run under Windows 2000, to avoid the " 3dmark needs DirectX 6.1 in order to run... " starting error. All file sources I can find via Google are dead links. Does anybody still have that patch available please? Here you …

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Re: 3dmark99 MegaThread

Posted on 2023-08-23, 01:37

by

by Shreddoc

in Marvin \ Video

in Marvin \ Video

I am looking for "3DMark_99_max_fix.zip", which is a patch to allow 3dmark99 to run under Windows 2000, to avoid the "3dmark needs DirectX 6.1 in order to run..." starting error. All file sources I can find via Google are dead links. Does anybody still have that patch available please?

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Re: ARGUS Project thread - Now with gerbers and documentation in initial post!

Posted on 2023-08-15, 03:23

by

by Shreddoc

in Marvin \ Sound

in Marvin \ Sound

The scarcity was always going to happen one way or the other. It's happened to other chips before and it will happen to other chips after. Responsibility for that scarcity does not fall upon a few boutique makers at the very tail end of a given market. The modest wage (at best) provided by servicing …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-07-26, 21:14

by

by Shreddoc

in Marvin \ Sound

in Marvin \ Sound

Cool to see a new firmware, cheers Ian.

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-07-20, 08:34

by

by Shreddoc

in Marvin \ Sound

in Marvin \ Sound

The photo I posted ABOVE is not mine, it's from the PicoGUS git page.. the one on the bottom is mine, and on mine the top cap is marked C9 (and likely populated 100nF in error) and the bottom cap is marked C10 (and likely populated 1uF in error) :( To clarify, this his HOW IT SHOULD BE: - Top …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-07-19, 06:15

by

by Shreddoc

in Marvin \ Sound

in Marvin \ Sound

Thanks for the tips. I've done the DEBUG trick and this is the result: -o 343 aa -i 343 FF - I'm guessing this means: This writes aa to the GUS register select register and then reads it back, so it should print back aa. I f you get ff back then something is preventing the PicoGUS from responding …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-07-18, 08:00

by

by Shreddoc

in Marvin \ Sound

in Marvin \ Sound

I noticed in the above image that the 3 end pins of the Pico appear to be unconnected to the PicoGUS PCB. Filename IMG_20230718_091222.jpg File size 83.07 KiB Views 1127 views I don't know if they are supposed to be connected to be PicoGUS PCB or not (there are pads), or if this causes any running …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-07-17, 22:44

by

by Shreddoc

in Marvin \ Sound

in Marvin \ Sound

When I connect it to the PC I get two flashes on the status LED and that's it. When I hold BOOTSEL upon connecting it does come up as a USB storage device called RPI-RP2 though. That seems like normal + expected behaviour, from the Pico board itself. So, we can probably cross "Pico board is …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-07-17, 22:29

by

by Shreddoc

in Marvin \ Sound

in Marvin \ Sound

appiah4 wrote on 2023-07-17, 22:17: The Pico in question seems to be a bootleg, not a genuine.. Does the Pico board respond, when connected to a PC with USB cable? (for that, remember to temporarily connect the ISA reset line to ground, as per the build guide)

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Re: 486 DX-33: Early 90s gaming system (ET4000/W32 VLB / GUS Extreme / Roland SCC-1 / MT-32 / CM-64)

Posted on 2023-07-08, 02:33

by

by Shreddoc

in Marvin \ System Specs

in Marvin \ System Specs

What a beast. I wonder what the cost would be, if all parts were purchased new in ~1994. When adjusted for inflation. If 1994 retail = ~ $5K, that would be ~ $10K in 2023 $.

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-06-10, 22:57

by

by Shreddoc

in Marvin \ Sound

in Marvin \ Sound

Speaking as another PicoGUS user: I don't have an original GUS so I can't speak from experience, re: exacting accuracy. To be honest I don't think the robust experimental data exists yet, beyond "it sounds right". There is for example no mdfourier test, or similar, comparing the two! Correct me if …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-05-25, 23:52

by

by Shreddoc

in Marvin \ Sound

in Marvin \ Sound

I wasn't able to make it Live unfortunately, timings didn't work out this time. Look forward to watching the session when I have a suitably-spare hour. Noticed that the project got front page HN'ed , noice. Brings a few more eyeballs and brains into the mix. (obligatory zombie-voice: !! …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2023-05-15, 05:45

by

by Shreddoc

in Marvin \ Sound

in Marvin \ Sound

@polpo I saw your post on Mastodon: I’ve started dipping my toes back into working on #PicoGUS. There are always bugs to fix on the GUS side, and there are some annoying issues with CMS and Tandy that I’d like to squash. I’m kind of thinking of streaming on Twitch while working on it… would that be …

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