Hacker News new | ask | show | jobs
by notacoward 1490 days ago
At least the 960 was somewhat usable. Many variants were created, and several were widely used in embedded products for quite a few years. The 860, however, was Just Crap. Full stop. End of story. IIRC it had weird double-instruction modes that compilers just couldn't handle, and if you used them anyway (for very necessary performance) then handling exceptions properly was all but impossible. Definitely gets my vote for worst ever.
3 comments

I worked on an unreleased third-party C compiler for the i860. It wasn't that compilers couldn't handle the double-issue float mode, it was more that it was worthless in real-world code due to the entry/exit latency. It had high performance on paper but not in reality, which was exactly the lesson that Intel did not learn for the Itanium.
Interesting that Intel has such an impressive record of failed designs. Itanium, 860, and iAPX 432 - all anti-classics of their time.
I remember articles from Byte hyping it(the 860), also adverts for accelerator cards.

It runs rings around workstations!