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

135 points - last Friday at 1:40 PM

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chasil today at 2:41 PM
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

dev-ns8 today at 8:01 PM
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?
TazeTSchnitzel today at 3:55 PM
jszymborski today at 2:37 PM
Would need "(2018)" in the title.
NooneAtAll3 today at 4:10 PM
unrelated, but recently XBox One was hacked for the first time

https://www.youtube.com/watch?v=FTFn4UZsA5U

alumno_007 today at 6:30 PM
Sobre calentamiento
deleted today at 4:43 PM