Linked by Thom Holwerda on Tue 22nd Sep 2009 21:54 UTC
Intel The Intel Developer Forum is currently in full swing, but it kicked off with a speech by Intel CEO Paul Otellini. Well, there's bad news for those of us who long for a time where lots of different architectures compete with one another, ensuring that technology is moved forward. Otellini's plans for Intel basically come down to one thing: x86 everywhere.
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gustl
Member since:
2006-01-19

I once read an analysis by a chip hardware guy, why the x86 architecture refuses to die.

His argument was like this: RISC-like architectures need no die space for that translation layer, but more instructions have to be stored in cache.

Imagine calculating a sinus: One instruction in x86, a whole algorithm in RISC. The translation layer of the x86 makes the one instruction to become the same algorithm as on RISK internally, but for caching and bus transfer purposes only one 32 bit command has to be considered, whereas for RISK it most often will be a much larger amount.

That leads to "more of the program can be stored in cache" for x86, and subsequently to faster execution. Loosing some speed in the translation layer is the disadvantage this architecture has, but as with all things tech: The best compromise is "The Solution", no matter how outstanding one of the pieces may be.

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