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Linux geeks cheer as Arm wrestles x86 • The Register
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You don't need to write more code. It's just that code compiles to more explicit/numerous machine instructions. A difference in architecture is only really relevant if you're writing assembly or something like it.
Sorry, I should have been more specific. I am talking about assembly code. I will again state that I am pro-arm, and wish I was posting this from an arm laptop running a distro.