alt Hacker NewsSo Arnd Bergmann thinks that all future systems, embedded included, will have 64 bit CPUs? Or will embedded just stop using Linux and move to the BSDs?
So Arnd Bergmann thinks that all future systems, embedded included, will have 64 bit CPUs? Or will embedded just stop using Linux and move to the BSDs?
Embedded has already split: You've got 8-bit, 16-bit, and some in-between MCUs that never ran Linux in the first place. You've got 32-bit MCUs that never ran Linux in the first place. You've got FPGAs that never really even run software. And you've got "application processors" like the ARM Cortex-A series that get used for "embedded Linux" in some cases. ARM Cortex-A series won't release any more 32-bit ISAs, so that mostly just leaves RISC-V as a potentially-relevant 32-bit ISA that might get new CPU designs. That's a small niche within an already small niche in embedded. Most embedded systems aren't using Linux, they're using an RTOS or bare-metal code.