Ring-jump ? Vas is das
-----Original Message----- From: Wols Lists <antli...@youngman.org.uk> To: u2-users <u2-users@listserver.u2ug.org> Sent: Tue, Dec 4, 2012 8:37 am Subject: Re: [U2] Advantage of indirect call in BASIC On 04/12/12 16:06, Jeff Schasny wrote: > I'll second Allen Egerton's "left over from Prime Information" theory. I > distinctly remember being told that indirect subroutine calls were > measurably faster way back in my days at Prime. > >From my knowledge of Pr1me architecture (which isn't great) this was one of Pr1me's very strong points - the hardware/software subroutine call architecture was *extremely* fast. So much so that, clocktick for clocktick, it is probably STILL several times faster than the now-ubiquitous x86 architecture. Shame they haven't caught up :-( (I'm thinking particularly here of a ring-jump, but I think it was just blindingly fast regardless - linux goes to great efforts to avoid such jumps, Pr1mos didn't care...) Cheers, Wol _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users
