5 ms·

I don't have any experience with ARM, but from what I've seen people write, isn't 32-bit ARM discontinued after v7?

by IsTom 1y ago

whizzter 1y ago
Doesn't mean that machines won't be built with other chips for a considerable time. That said, if you're putting something like Erlang on a chip, aren't one likely to want the extra memory (and performance) of a slightly newer SoC.
- LtdJorge 1y ago
  Take a look at their products. Seems like they run bare metal Erlang on embedded devices.
ferriswil 1y ago
Their motivation is explained in the first post of the series[1] [1] https://www.grisp.org/blog/posts/2025-06-23-jit-arm32.1#why-bother-with-arm32 https://www.grisp.org/blog/posts/2025-06-23-jit-arm32.1#why-...
- snvzz 1y ago
  For their real motivation[0], click on hardware at the top of the page. Their existing hardware is aarch32. It really is that simple. 0. https://www.grisp.org/hardware https://www.grisp.org/hardware
- bvttf 1y ago
  loved them complaining about having "only" 16 registers
masklinn 1y ago
That does not mean ARM32 implementations and uses are stopping any time soon. Afaik arm hasn’t even obsoleted armv6, although Linux distributions are starting to drop it.
crote 1y ago
There's still a huge embedded market! Plenty of microcontrollers have a single-digit number of Cortex-M cores and memory/flash counted in the megabytes. It'll be decades until that market reaches the multi-gigabyte point, so why bother wasting a whole bunch of memory on 64-bit pointers? I'm not quite sure why you'd want to run Erlang on it, but the hardware exists.
- diegoperini 1y ago
  > I'm not quite sure why you'd want to run Erlang on it, but the hardware exists. Erlang is invented before IoT was a thing to facilitate distributed computing for telecommunication in a highly reliable manner. It makes perfect sense to adapt it for driving fleets of cheap IoT devices.
- derefr 1y ago
  > I'm not quite sure why you'd want to run Erlang on it, but the hardware exists. https://nerves-project.org/#features https://nerves-project.org/#features has a decent pitch for why. (Most of the features listed here aren't features of Nerves-the-Elixir-IoT-runtime-codebase per se, but rather benefits of Nerves-the-toolchain enabling you to easily build lean, embedded Erlang [on Linux] firmware images.)
bobmcnamara 1y ago
No, it's a supported ISA on most v8-a and I believe all v8-m implementations. It's the only ISA on Cortex-A32, but not sure if any mainstream chips were ever produced with that core. (Depending on course if you want to get specific about Arm/Thumb/Thumb2, I lumped them all together above).
15155 1y ago
Cortex-M chips will still be made for decades.

I don't have any experience with ARM, but from what I've seen people write, isn't 32-bit ARM discontinued after v7?

by IsTom 1y ago

I don't have any experience with ARM, but from what I've seen people write, isn't 32-bit ARM discontinued after v7?

Doesn't mean that machines won't be built with other chips for a considerable time. That said, if you're putting something like Erlang on a chip, aren't one likely to want the extra memory (and performance) of a slightly newer SoC.

LtdJorge 1y ago
Take a look at their products. Seems like they run bare metal Erlang on embedded devices.

ferriswil 1y ago

Their motivation is explained in the first post of the series[1] [1] https://www.grisp.org/blog/posts/2025-06-23-jit-arm32.1#why-bother-with-arm32 https://www.grisp.org/blog/posts/2025-06-23-jit-arm32.1#why-...

snvzz 1y ago
For their real motivation[0], click on hardware at the top of the page. Their existing hardware is aarch32. It really is that simple. 0. https://www.grisp.org/hardware https://www.grisp.org/hardware
bvttf 1y ago
loved them complaining about having "only" 16 registers

masklinn 1y ago

That does not mean ARM32 implementations and uses are stopping any time soon. Afaik arm hasn’t even obsoleted armv6, although Linux distributions are starting to drop it.

crote 1y ago

There's still a huge embedded market! Plenty of microcontrollers have a single-digit number of Cortex-M cores and memory/flash counted in the megabytes. It'll be decades until that market reaches the multi-gigabyte point, so why bother wasting a whole bunch of memory on 64-bit pointers? I'm not quite sure why you'd want to run Erlang on it, but the hardware exists.

diegoperini 1y ago
> I'm not quite sure why you'd want to run Erlang on it, but the hardware exists. Erlang is invented before IoT was a thing to facilitate distributed computing for telecommunication in a highly reliable manner. It makes perfect sense to adapt it for driving fleets of cheap IoT devices.
derefr 1y ago
> I'm not quite sure why you'd want to run Erlang on it, but the hardware exists. https://nerves-project.org/#features https://nerves-project.org/#features has a decent pitch for why. (Most of the features listed here aren't features of Nerves-the-Elixir-IoT-runtime-codebase per se, but rather benefits of Nerves-the-toolchain enabling you to easily build lean, embedded Erlang [on Linux] firmware images.)

bobmcnamara 1y ago

No, it's a supported ISA on most v8-a and I believe all v8-m implementations. It's the only ISA on Cortex-A32, but not sure if any mainstream chips were ever produced with that core. (Depending on course if you want to get specific about Arm/Thumb/Thumb2, I lumped them all together above).

15155 1y ago

Cortex-M chips will still be made for decades.