AMD: Intel’s proposal for 64-bit-only x86 architecture is very interesting – Computer – News

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I’ve by no means seen Home windows on Itanium stay (in manufacturing, however check/beta/inner), however I’ve seen HPUX on Itanium (as a substitute for the PA-RISC processor). There was an emulator (ARIES) that transformed PA-RISC to HP-IA64. Though I noticed little profit from that myself, as a result of on the time we made a local port on HPUX IA64 (PA-RISC was dying out).

The purpose is and was that IA64 was a very totally different structure. The C/C++ compiler on HPUX made fully totally different directions, primarily as a result of an Itanium chip had fully totally different pipelines and scheduler. Backside line, Itanium has by no means been a profitable undertaking. HP will even finish ultimate assist in 2025 (though I’ve been away from the corporate for years on the time).

As a result of Itanium has all the time been a distinct segment market, costs had been additionally sky-high. In the meantime, Linux and Home windows got here with Xeon stuff, which additionally included some RAS and HA-like issues from Itanium (hijacked). And iterations (tic/toc) on Itanium ultimately went so sluggish that Itanium simply bled to loss of life. In the end, it’s tough to say whether or not the collaboration between HP and Intel died as a result of Intel wished extra for it or as a result of HP remained (virtually) the one purchaser and vendor.

I believe there was additionally an emulator on Home windows to run x86 on IA64.

Aside from that you simply’re proper. Recompile most likely is not needed, so long as your software program would not do 32-bit kernel mode enterprise (which would be the case fairly quickly, one thing with Atomic stuff, I believe was already a kernel factor).

Alternatively: if the x86 half can actually be eliminated, then the freed up house on the chip might be usefully used for different issues. In that sense, the phrase “intriguing” is a little bit of an understatement. Good growth if it really works. From expertise, shifting from 16 to 32 bit, 32-bit to 64-bit, IPv4 to IPv6: these are all very prolonged initiatives. However the truth that OSs are already 64-bit is sweet.

Though the embedded market is not going to sit round ready for 64-bit CPUs if 32-bit will suffice.

[Reactie gewijzigd door kdekker op 14 juli 2023 20:38]