Yokemate of Keyboards
Posts: 9433 from 2003/5/22
> Which means we need to go back to in-order PPC processors
In-order execution doesn't preclude speculative execution (branch prediction etc.).http://morph.zone/modules/newbb_plus/viewtopic.php?forum=3&topic_id=7183&start=272
> IBM had some cool cpus built for the PS3 and the Xbox360 that were in-order.
...and the POWER6 as well (which can do speculative execution, though, so is vulnerable). But yes, Cell BE and Xenon/XCGPU may not be able to do speculative execution in which case they wouldn't be vulnerable.