The x86 license itself doesn’t matter much anymore. Those patents expired a long time ago. Early x86_64 is held by AMD, but those patents are also expiring soon.
There’s more advancements past that which are held by both Intel and AMD. You still can’t make a modern x86 CPU on your own. Soon, you’ll be able to make a CPU with an instruction set compatible with the first Athlon 64-bit processors, but that’s as far as it goes.
The x86 license itself doesn’t matter much anymore. Those patents expired a long time ago. Early x86_64 is held by AMD, but those patents are also expiring soon.
There’s more advancements past that which are held by both Intel and AMD. You still can’t make a modern x86 CPU on your own. Soon, you’ll be able to make a CPU with an instruction set compatible with the first Athlon 64-bit processors, but that’s as far as it goes.