Hello, Respectful Intel,
Somewhere and some people said
"x86-64 (also known as x64, x86_64 and AMD64) is the 64-bit version of the x86 instruction set.",
and some other people said
"That's where IA-32 came in, to cover the 32-bit part of the whole "extended" x86 architecture, and to clearly distinguish x86 and x86-64 from the already dead IA-64 architecture. In other words, Intel had to swallow its pride and implement AMD's x86-64 while burying its own brand new Itanium architecture; as an architecture, x86-64 is only an extension of x86, what makes them very closely related."
I feel very doubtful about those two viewpoints! Is Itanium architecture dead? Is today's Intel 64 architecture the 64-bit version of IA-32 architecture? Or in other words, will there be any change for instruction set architecture for the further Intel processors?
I need your replies badly, thank you in advance!
Best Regards,
Aaron Janagewen