On Fri, Jan 5, 2018 at 6:55 AM, <to...@tuxteam.de> wrote: > (mainframes of that time had at least VM, possibly > speculative prefetch).
Is it correct to call branch prediction the same as speculative execution? If so, then "yes" they had it, but I don't honestly know if that's correct. Pipeline rewinding was necessary on prediction failure, etc, similarly. > Cheers > > [1] https://en.wikipedia.org/wiki/Motorola_68000 > > - -- tomás