Linked by Thom Holwerda on Tue 13th Nov 2012 22:24 UTC
AMD "Advanced Micro Devices has hired JPMorgan Chase & Co to explore options, which could include a potential sale, as the chipmaker struggles to find a role in an industry increasingly focused on mobile and away from traditional PCs, according to three sources familiar with the situation." Woah. Bad news for competition in the x86 space.
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RE[2]: What about 64-bit only?
by zima on Thu 15th Nov 2012 06:22 UTC in reply to "RE: What about 64-bit only?"
zima
Member since:
2005-07-06

Plus, isn't amd64 effectively a superset of x86? Meaning you can't really implement the former without major parts of the latter?

Reply Parent Score: 2

Neolander Member since:
2010-03-08

Plus, isn't amd64 effectively a superset of x86? Meaning you can't really implement the former without major parts of the latter?

Yeah, AMD64 also follows a logic that's very similar to that of x68, but I don't know if Intel's license/patents/whatever prevents people from doing what they want with x86 go this far.

Edited 2012-11-15 07:30 UTC

Reply Parent Score: 1

twitterfire Member since:
2008-09-11

Data is 64 bit, instructions can use 16, 32 or 64 bits.
For example:

mov ah, bh //16 bit

mov ax, bx //32 bit

mov rax, rbx // 64 bit

Intel patents cover instruction set so you can't have x64 only cpus without infringing Intel's patents.

So that's why hardware patents are as bad as software patents because they hinder competition.

Reply Parent Score: 2