this post was submitted on 21 Aug 2026
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[–] Mihies@programming.dev 106 points 1 day ago (4 children)

Something similar happened to Slovene Iskra Triglav computer which was quite advanced for the time (capable of running three different CPUs) but then caught in between US-Soviet cold war/embargo while trying to sell them to Soviet Union.

[–] brsrklf@jlai.lu 75 points 1 day ago (1 children)

Three CPUs with different architectures on one device sounds crazy. That's amazing.

[–] greyscale@lemmy.grey.ooo 45 points 1 day ago (6 children)

PS3 comes to mind

Though in embedded, thats fairly normal.

I've got a $1 linux embedded SoC that has a 64 bit riscv core, a 32 bit riscv core for running realtime stuff and a low power embedded 6502 on it too because why not.

[–] Natanael@infosec.pub 5 points 19 hours ago* (last edited 1 hour ago) (1 children)

Original Nintendo DS had two different ARM CPUs for DS games ~~and the same CPU the GBA had for direct compatibility.~~

[–] missingno@fedia.io 3 points 15 hours ago (1 children)

The second CPU is the GBA CPU, but at twice the clockspeed (which can then downclock for GBA games). You're double-counting it and making it sound like the system had three.

The 3DS is the real funny one, adding its own new CPU alongside both the DS and GBA CPUs. So that's actually three.

[–] Natanael@infosec.pub 1 points 1 hour ago

I was probably thinking of the z80 then but that didn't get included

[–] testaccount789@sh.itjust.works 11 points 1 day ago (1 children)

Yeah, RP2350 in Raspberry Pi Pico 2 also has 2 ARM cores and 2 RISC-V cores.

Which reminds me, I purchased one a month ago to play around with as it has good documentation, yet I haven't used it once so far.

[–] greyscale@lemmy.grey.ooo 6 points 23 hours ago* (last edited 23 hours ago) (1 children)

Its actually not seperate cores, they're RISCV or ARM, based on a switch. MilkV does that too with one of its chips. They're mostly the same architecturally, theres something like 10% that gets enabled/disabled with each ISA selection.

[–] testaccount789@sh.itjust.works 8 points 23 hours ago* (last edited 23 hours ago) (1 children)

But you can still run both at once. RP2350 datasheet

From section 3.9 Arm/RISC-V architecture switching:

There are two processor sockets on RP2350, referred to as core 0 and core 1 throughout this document. Each socket can be occupied either by a Cortex-M33 processor (implementing the Armv8-M Main architecture, plus extensions) or by a Hazard3 processor (implementing the RV32IMAC architecture, plus extensions).

From section 3.9.2. Mixed architecture combinations:

The ARCHSEL register has one bit for each processor socket, so it is possible to request mixed combinations of Arm and RISC-V processors: either Arm core 0 and RISC-V core 1, or RISC-V core 0 and Arm core 1.

Practical applications for this are limited, since this requires two separate program images. The two cores interoperate normally, including shared exclusives via the global monitor: a shared variable can be safely, concurrently accessed by an Arm processor performing ldrex, strex instructions and a RISC-V processor performing amoadd.w instructions, for example

[–] greyscale@lemmy.grey.ooo 1 points 13 hours ago

My point it isn't 2x arm and 2x riscv. They recycle most of the silicon used.

[–] hayvan@piefed.world 10 points 1 day ago (1 children)
[–] greyscale@lemmy.grey.ooo 6 points 23 hours ago (1 children)

SG2002/SG2000 and the CV1800B chips by MilkV

[–] hayvan@piefed.world 2 points 23 hours ago
[–] Valmond@lemmy.dbzer0.com 2 points 21 hours ago

6502 to play C64 games of course.

[–] anomnom@sh.itjust.works 1 points 23 hours ago (1 children)

OSX (now MacOS) was built and running on PowerPC and Intel for years before Intel Macs were released. I assume the same was true before they released the Apple silicon chips.

[–] greyscale@lemmy.grey.ooo 7 points 23 hours ago

Yeah but they weren't running both in the same device at the same time.

PPC -> Intel they just recompiled their OS and fixed it up for the x86 platform, then the same for Intel -> ARM

They did not have a laptop with an x86 processor and a PPC at the same time.. though there are some hillariously bespoke accellerator cards from back in the day to do all sorts of strange things.

That said, laptops are full of microcontrollers with firmware, lots of those will be atmega, st32, 6502 and the like. Things like a WLAN or WAN card will be a little ARM soc of some flavour.

So it really depends on where you draw the line. If its executing the main workload, I'd say thats the CPU, everything else is a microcontroller enabling it to do that

[–] hayvan@piefed.world 22 points 1 day ago (1 children)

Soviets did a lot to harm Eastern Block tech. Bulgarian Pravetz was a clone of Apple ][. Nothing impressive but cheap, functional, domestically produced. Can't really be exported towards west due to blatant IP violations, but the production capabilities were good enough to produce and export hard drives.

Except the trade deal with Britain was blocked by Soviets because it was seen as a security threat, and an industry died in its infancy.

[–] Alcoholicorn@mander.xyz 22 points 1 day ago* (last edited 1 day ago) (1 children)

There's another future where Yugoslavia is the birthplace of a free software movement, and homebuilt PCs lower the barrier of entry to anybody with some time on their hands, with software distributed by radio and powerline until the advent of internet.

[–] hayvan@piefed.world 4 points 1 day ago

Ah yes, I recently learned about Galaksija, it's fascinating!

[–] Mwa@thelemmy.club 5 points 1 day ago* (last edited 1 day ago) (1 children)

that computer sounds awesome, imagine something like this existed today(like a computer with a RISC-V,Arm64 and X86-64 CPU) .

[–] Valmond@lemmy.dbzer0.com 2 points 21 hours ago

Developers: 😰

[–] kuiskaaja@lemmy.ml 6 points 1 day ago (2 children)

yugoslav.

slovenia wasn't a country back then

[–] Mihies@programming.dev 10 points 1 day ago

Iskra Delta was a Slovene (republic) company, even within Yugoslavia. But if you nitpick, then technically it would be Yugoslavia as country.

[–] darklamer@feddit.org 9 points 1 day ago

The Socialist Republic of Slovenia was one of the six federal republics forming the Socialist Federal Republic of Yugoslavia, if you want to be technical about it.