> Itanium did not aim at the x86 market. Maybe not. But x86 certainly took over ... | Hacker News

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cwyers on May 13, 2017 | parent | context | favorite | on: VME Broken on AMD Ryzen

> Itanium did not aim at the x86 market.

Maybe not. But x86 certainly took over the market Itanium was aiming for.

nine_k on May 13, 2017 [–]

x86 did not. x64 did.

cwyers on May 13, 2017 | [–]

All 16 and 32 bit x86 code is valid on x64. It's an extension, not a new ISA.

geezerjay on May 13, 2017 | | [–]

You got it all backwards. AMD64 is a complete revamp which happens to support x86 in its legacy mode.

Server people care for 64-bit address spaces, and that's a feature introduced by AMD64 which is not available in x86.

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