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| From | Noob <root@127.0.0.1> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: micro-architectural details |
| Date | 2016-12-08 21:36 +0100 |
| Organization | A noiseless patient Spider |
| Message-ID | <o2cg6d$mo0$1@dont-email.me> (permalink) |
| References | (8 earlier) <o27bm1$mgq$1@dont-email.me> <f80db400-a179-48ad-ac63-f6e954c08b8c@googlegroups.com> <o27g8v$arv$1@dont-email.me> <o29tdp$nbl$1@dont-email.me> <o2a39e$c8b$1@dont-email.me> |
On 07/12/2016 23:44, jacobnavia wrote: > Le 07/12/2016 à 22:04, Noob a écrit : >> On 07/12/2016 00:07, jacobnavia wrote: >> >>> Look, a non taken jump on overflow is one cycle. No memory access, since >>> a CPU flag doesn't take any. The only overhead is code size: >> >> When you mention CPU-specific details, it's obvious you >> have Intel CPUs in mind. > > Obvious of course. I am programming lcc-win for ARM-64, and have done > versions for the power pc and even a 16 bit CPU. > > You do not know what you are talking about when you speak about me. You > do not even know what I do. I do know what you do! You annoy me :-p >> Not all architectures have an >> "overflow flag". Not all architectures have a "one cycle >> penalty for non-taken jumps". > > Yes, other architectures have more cycles. But programming is not about > getting something in less cycles, it is about getting correct results! > > But understanding THAT is beyond your abilities I suppose? OK, mister smarty pants. How do you implement your proposed overflow detection scheme on the Itanium? http://www.intel.com/content/dam/doc/manual/itanium-architecture-vol-1-2-3-4-reference-set-manual.pdf IMO, writing a compiler targeting a few arches does not make one qualified to dismiss 30 years of engineering compromises by WG14 et al. Especially if one doesn't offer an honest assessment of the pros and cons of one's proposal. > Great NOOB; You are GREAT! There's something about the way you express irony that cracks me up (most of the time). I guess that's why I can't keep you in my KF. Regards.
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"Let’s Stop Bashing C" Lynn McGuire <lynnmcguire5@gmail.com> - 2016-12-05 19:57 -0600
Re: "Let’s Stop Bashing C" Richard Heathfield <rjh@cpax.org.uk> - 2016-12-06 02:34 +0000
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Re: "Let’s Stop Bashing C" BGB <cr88192@hotmail.com> - 2016-12-06 21:16 -0600
Re: "Let’s Stop Bashing C" Richard Heathfield <rjh@cpax.org.uk> - 2016-12-06 11:54 +0000
Re: "Let’s Stop Bashing C" BartC <bc@freeuk.com> - 2016-12-06 12:07 +0000
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Re: "Let’s Stop Bashing C" Richard Heathfield <rjh@cpax.org.uk> - 2016-12-06 13:40 +0000
Re: "Let’s Stop Bashing C" jacobnavia <jacob@jacob.remcomp.fr> - 2016-12-06 19:40 +0100
Re: "Lete2��s Stop Bashing C" Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2016-12-06 13:55 -0500
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Re: "Lete2�™s Stop Bashing C" jacobnavia <jacob@jacob.remcomp.fr> - 2016-12-06 22:15 +0100
Re: "Lete2�™s Stop Bashing C" Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2016-12-06 16:49 -0500
Re: "Lete2�™s Stop Bashing C" supercat@casperkitty.com - 2016-12-06 14:24 -0800
Re: "Lete2�™s Stop Bashing C" jacobnavia <jacob@jacob.remcomp.fr> - 2016-12-07 00:07 +0100
Re: micro-architectural details Noob <root@127.0.0.1> - 2016-12-07 22:04 +0100
Re: micro-architectural details jacobnavia <jacob@jacob.remcomp.fr> - 2016-12-07 23:44 +0100
Re: micro-architectural details BartC <bc@freeuk.com> - 2016-12-07 23:02 +0000
Re: micro-architectural details Keith Thompson <kst-u@mib.org> - 2016-12-07 15:28 -0800
Re: micro-architectural details Noob <root@127.0.0.1> - 2016-12-08 21:36 +0100
Re: micro-architectural details supercat@casperkitty.com - 2016-12-08 12:56 -0800
Re: micro-architectural details Noob <root@127.0.0.1> - 2016-12-08 23:03 +0100
Re: micro-architectural details supercat@casperkitty.com - 2016-12-08 14:21 -0800
Re: micro-architectural details Noob <root@127.0.0.1> - 2016-12-08 23:36 +0100
Re: micro-architectural details BartC <bc@freeuk.com> - 2016-12-08 21:59 +0000
Re: micro-architectural details Noob <root@127.0.0.1> - 2016-12-08 23:25 +0100
Re: micro-architectural details supercat@casperkitty.com - 2016-12-08 14:34 -0800
Re: micro-architectural details Noob <root@127.0.0.1> - 2016-12-08 23:59 +0100
Re: micro-architectural details Melzzzzz <mel@zzzzz.com> - 2016-12-09 00:18 +0100
Re: micro-architectural details fir <profesor.fir@gmail.com> - 2016-12-09 00:06 -0800
Re: micro-architectural details jt@toerring.de (Jens Thoms Toerring) - 2016-12-09 11:35 +0000
Re: micro-architectural details BartC <bc@freeuk.com> - 2016-12-09 12:12 +0000
Re: micro-architectural details David Brown <david.brown@hesbynett.no> - 2016-12-09 13:33 +0100
Re: micro-architectural details Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-12-09 15:41 -0800
Re: micro-architectural details Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-10 09:28 -0800
Re: micro-architectural details supercat@casperkitty.com - 2016-12-10 09:58 -0800
Re: micro-architectural details Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-14 22:53 -0800
Re: micro-architectural details Robert Wessel <robertwessel2@yahoo.com> - 2016-12-11 03:10 -0600
Re: micro-architectural details jt@toerring.de (Jens Thoms Toerring) - 2016-12-11 13:48 +0000
Re: micro-architectural details BartC <bc@freeuk.com> - 2016-12-11 14:43 +0000
Re: micro-architectural details Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-11 16:23 +0000
Re: micro-architectural details Keith Thompson <kst-u@mib.org> - 2016-12-11 12:53 -0800
Re: micro-architectural details Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-11 21:27 +0000
Re: micro-architectural details supercat@casperkitty.com - 2016-12-11 08:46 -0800
Re: micro-architectural details Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-14 21:14 -0800
Re: micro-architectural details supercat@casperkitty.com - 2016-12-15 08:25 -0800
Re: micro-architectural details Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-14 21:11 -0800
Re: micro-architectural details BartC <bc@freeuk.com> - 2016-12-15 14:28 +0000
Re: micro-architectural details David Brown <david.brown@hesbynett.no> - 2016-12-11 18:38 +0100
Re: micro-architectural details Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-15 00:25 -0800
Re: micro-architectural details supercat@casperkitty.com - 2016-12-09 07:42 -0800
Re: micro-architectural details Keith Thompson <kst-u@mib.org> - 2016-12-09 11:54 -0800
Re: micro-architectural details David Brown <david.brown@hesbynett.no> - 2016-12-09 10:27 +0100
Re: other missing features (no-brainers) Noob <root@127.0.0.1> - 2016-12-09 17:05 +0100
Re: micro-architectural details jt@toerring.de (Jens Thoms Toerring) - 2016-12-09 09:51 +0000
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Re: "Lete2??s Stop Bashing C" jacobnavia <jacob@jacob.remcomp.fr> - 2016-12-07 11:45 +0100
Re: "Lete2??s Stop Bashing C" Keith Thompson <kst-u@mib.org> - 2016-12-07 09:22 -0800
Re: "Lete2??s Stop Bashing C" jacobnavia <jacob@jacob.remcomp.fr> - 2016-12-07 11:49 +0100
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Re: Subject field encoding Noob <root@127.0.0.1> - 2016-12-07 21:40 +0100
Re: Subject field encoding Keith Thompson <kst-u@mib.org> - 2016-12-07 13:01 -0800
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Re: "Lete2�™s Stop Bashing C" asetofsymbols@gmail.com - 2016-12-08 15:50 -0800
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