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Thumb is very useful in things like microwaves where using less memory save the manufacturer a little money. You do have different chips with different instruc
by Symmetry 6y ago
Thumb is very useful in things like microwaves where using less memory save the manufacturer a little money.
You do have different chips with different instructions but in a very regularized way. An ARM v8.2-A chip is going to have the same instructions whether it's made by ARM, Samsung, or Apple. And when v9 comes out they'll have NEON's SVE replacement everywhere and you'll be able to use the same code regardless of whether the SIMD width is 128 bits or 512.
- ksec 6y agoIs that SVE on ARM v9 confirmed? I have yet to see any concrete details on ARM v9, generally speaking ARM v8 is pretty damn well designed I am wondering what v9 will look like.
- skavi 6y agoIt’s generally expected that SVE2 will be required for ARMv9. SVE2 is a more logical successor to NEON than SVE. https://community.arm.com/developer/ip-products/processors/b/processors-ip-blog/posts/new-technologies-for-the-arm-a-profile-architecture https://community.arm.com/developer/ip-products/processors/b...