Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > alt.os.development > #8332
| From | "Rod Pemberton" <boo@fasdfrewar.cdm> |
|---|---|
| Newsgroups | alt.os.development |
| Subject | Re: 64-bit detection |
| Date | 2015-07-10 05:17 -0400 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <op.x1jv3mgoyfako5@localhost> (permalink) |
| References | <mnn174$dd$1@speranza.aioe.org> <op.x1jgivqzyfako5@localhost> <mnns78$v0t$1@dont-email.me> |
On Fri, 10 Jul 2015 03:30:05 -0400, James Harris <james.harris.1@gmail.com> wrote: > "Rod Pemberton" <boo@fasdfrewar.cdm> wrote in message > news:op.x1jgivqzyfako5@localhost... >> On Thu, 09 Jul 2015 19:47:49 -0400, Benjamin David Lunt >> <zfysz@fysnet.net> wrote: >>> Have you done anything for 64-bit? >>> Will you? >> >> I'd say probably not any time soon. > > You would have to add paging if you did - something you > are or were reluctant to do. x86-64 won't run without it. > Sigh, yes, I've not done that. I don't think it would detract from my OS project, but it seems to just be extra work. It might allow it to work better with one C compiler, but I was planning on dropping support for it. Although, I understand that I can identity map or physical map memory, perhaps or hopefully all of it. I'm not sure how 64-bit memory addressing might affect that. IIRC, 64-bit did something special with offsets, like sign-extension from 32-bits to 64-bit (?). Wouldn't that affect the address range? Rod Pemberton -- Tolerance and socialism attracts intolerance and terrorism. See: France, United Kingdom, Germany, Denmark, Belgium, Netherlands, ... UK: Strong encryption, non-issue. GR: Eurozone currency, priority.
Back to alt.os.development | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
64-bit detection "Benjamin David Lunt" <zfysz@fysnet.net> - 2015-07-09 16:47 -0700
Re: 64-bit detection "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-07-09 23:41 -0400
Re: 64-bit detection "James Harris" <james.harris.1@gmail.com> - 2015-07-10 08:30 +0100
Re: 64-bit detection "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-07-10 05:17 -0400
Re: 64-bit detection "James Harris" <james.harris.1@gmail.com> - 2015-07-10 13:41 +0100
Re: 64-bit detection "James Harris" <james.harris.1@gmail.com> - 2015-07-12 19:04 +0100
Re: 64-bit detection "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-07-13 02:30 -0400
Re: 64-bit detection "Alexei A. Frounze" <alexfrunews@gmail.com> - 2015-07-13 02:07 -0700
Re: 64-bit detection "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-07-13 23:10 -0400
Re: 64-bit detection "Alexei A. Frounze" <alexfrunews@gmail.com> - 2015-07-14 01:23 -0700
Re: 64-bit detection "James Harris" <james.harris.1@gmail.com> - 2015-07-13 12:34 +0100
Re: 64-bit detection "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-07-13 22:50 -0400
Re: 64-bit detection "James Harris" <james.harris.1@gmail.com> - 2015-07-14 08:37 +0100
Re: 64-bit detection "Alexei A. Frounze" <alexfrunews@gmail.com> - 2015-07-14 01:41 -0700
Re: 64-bit detection "James Harris" <james.harris.1@gmail.com> - 2015-07-14 10:04 +0100
Re: 64-bit detection "Benjamin David Lunt" <zfysz@fysnet.net> - 2015-07-10 08:44 -0700
Re: 64-bit detection "Benjamin David Lunt" <zfysz@fysnet.net> - 2015-07-10 10:52 -0700
Re: 64-bit detection "Benjamin David Lunt" <zfysz@fysnet.net> - 2015-07-10 08:38 -0700
Re: 64-bit detection "Benjamin David Lunt" <zfysz@fysnet.net> - 2015-07-10 10:58 -0700
Re: 64-bit detection CN <qmbmnp3799@pacbell.net> - 2015-07-09 23:00 -0700
Re: 64-bit detection "Benjamin David Lunt" <zfysz@fysnet.net> - 2015-07-10 08:40 -0700
Re: 64-bit detection "James Harris" <james.harris.1@gmail.com> - 2015-07-10 21:29 +0100
csiph-web