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A 386 PC for Your RP2350

186 pointsby SamuraiLiontoday at 8:25 AM61 commentsview on HN

Comments

guentherttoday at 12:21 PM

Holy cow, a 386 with VGA and SoundBlaster on a $1 MCU?

I recall VICE emulating the Brotkasten on 386 PCs some thirty years ago, later UAE doing it for Amiga. How long til my currently running system (anno 2016) is being emulated?

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dvdkontoday at 11:09 AM

It's really cool what can be done today with just an MCU that has sufficiently flexible IO. What's the performance like?

ilakshtoday at 5:19 PM

The problem is PC programs assume 640kb of RAM and the RP2350 has 512kb + 16kb cache SRAM so anything that goes past that has a sudden 40 cycle access delay.

So even if you account for the RP2350 being 6 times faster than the RP2350, I think the emulation would randomly start to stutter a lot in certain circumstances waiting to access that part of the memory.

broswelltoday at 4:02 PM

Which of the 4 boards on do you recommend as easiest? I would love to demo at the Computer Museum @ System Source https://museum.sysrc.com

It looks like I would have to build my own frank board. Any off the shelf boards?

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cold_pizz4today at 10:44 AM

I love it! The RP2350 is probably the most underrated microcontroller available today.

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jasongilltoday at 4:17 PM

In case anyone missed it earlier on HN, there is a similar project that runs on an ESP32: https://github.com/hchunhui/tiny386

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zabriel_gosstoday at 2:56 PM

What a long way to have come from the beige towers!

gxdtoday at 12:37 PM

I had Slackware CDs in the nineties! They had a minimalist label and came with no jewel case (rubber band if I recall correctly).

I've been meaning to rediscover the CICA and Simtel collections. Maybe that's what I needed!

weinzierltoday at 9:35 AM

Looks like it can even run Windows 96. Incredibly cool. I'll have to try if it runs my old Slackware kernal 1.2.13 some time. I used it with a 4MiB, 25Mhz 386 DX back in the time, so it should.

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burstmodetoday at 10:37 AM

Does it emulate RS232 ports and printer ports as well ? I did'nt find anything. Then it would be possible to reuse old embedded equipment.

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nickcwtoday at 1:33 PM

Was the performance mentioned anywhere - I couldn't find it on the page?

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shrubbletoday at 2:32 PM

Technically you could run OS/2 on it, I think.

Or Plan9 for i386.

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joshmarinaccitoday at 1:51 PM

Wow. How can it do this without an MMU?

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jwrallietoday at 10:14 AM

Really cool, wondering if it can be ported to the PicoCalc.

Tepixtoday at 9:48 AM

Time to dig up 386bsd

momocowcowtoday at 9:55 AM

yes, but those screenshots are EGA

patrick_rtktoday at 10:14 AM

nice job