5 ms·
The base ISA is set by ARM, but every vendor has their own set of features turned on or off, and their own extensions, and potentially their own way of laying o
by nitrogen 6y ago
The base ISA is set by ARM, but every vendor has their own set of features turned on or off, and their own extensions, and potentially their own way of laying out memory mapped IO and identifying peripherals.
- klelatti 6y agoEvery vendor does not have their own set of extensions. Different x86 chips have different extensions (from a pre-defined set) - I don't see panic about x86 fragmentation.
- xxpor 6y agoIs there any difference between AMD and Intel these days in terms of instructions other than AVX512?
- klelatti 6y agoNot aware of any but there are significant extension variations even within Intel e.g. lack of AVX on Atom.
- greatpatton 6y agoIt's not panic but this is really annoying like with AVX-512. The side effect is that people are making choice for the target architecture.