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But no shared libraries due to this. Iirc the silicon ia32 compat was gone by the time early systems were being built, so it's not like they really tried to pro

But no shared libraries due to this. Iirc the silicon ia32 compat was gone by the time early systems were being built, so it's not like they really tried to provide a workable upgrade path, more like they shield away from the hard work and bet that ia32 would disappear

mlyle 3y ago
> Iirc the silicon ia32 compat was gone by the time early systems were being built, Itanium first shipped in 2002 with silicon for the purpose-- it just was not very good. The software compat layer showed up in late 2004 with Madison, and was far superior in every way to the ia32e silicon in earlier processors-- it had near-parity with Xeons for a couple of generations. But-- why pay tons more for near-parity with a cheaper processor? > But no shared libraries due to this. Using shared libraries from a different ISA is hard; x86-64 OSes didn't try to do this, nor did Apple's Rosetta in 2006 or Rosetta 2 in 202. Generally (not always) your user space program is made entirely of code for one architecture. It's hard to deal with different pointer widths, calling conventions, etc.