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Finding a CPU Design Bug in the Xbox 360 (2018)

132 points by mariuz

by chasil

3 subcomments

It is interesting that IBM dominated this generation of consoles, and was vanquished in the next.
The high failure rates of the Xbox 360 did not help.
https://en.wikipedia.org/wiki/Xbox_360_technical_problems

by dev-ns8

1 subcomments

Wow... A speculative branch prediction path actually get's preemptively executed despite the branch outcome? No matter if the execution has side-affects??? That's quite amazing. Are modern CPUs doing speculative execution like this and just put extra safeguards around affects or do they just prefetch / decode instructions now-a-days?

by TazeTSchnitzel

0 subcomment

This article is from 2018.
Previously:
- https://news.ycombinator.com/item?id=16094925
- https://news.ycombinator.com/item?id=27480448

by jszymborski

0 subcomment

Would need "(2018)" in the title.

by NooneAtAll3

1 subcomments

unrelated, but recently XBox One was hacked for the first time
https://www.youtube.com/watch?v=FTFn4UZsA5U

by alumno_007

0 subcomment

Sobre calentamiento

by

0 subcomment