alt Hacker NewsThose general purpose registers will also need to grow to twice their size, once we get our first 128bit CPU architecture. I hope Intel is thinking this through.
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rwmj • today at 5:17 PM
There's a first time for everything.
Those general purpose registers will also need to grow to twice their size, once we get our first 128bit CPU architecture. I hope Intel is thinking this through.
There's a first time for everything.
That's a ways out. We're not even using all bits in addresses yet. Unless they want hardware pointer tagging a la CHERI there's not going to be a need to increase address sizes, but that doesn't expose the extra bits to the user.
Data registers could be bigger. There's no reason `sizeof int` has to equal `sizeof intptr_t`, many older architectures had separate address & data register sizes. SIMD registers are already a case of that in x86_64.