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| From | Keith Thompson <kst-u@mib.org> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: how does one access a specific address location in C? |
| Date | 2016-06-16 11:20 -0700 |
| Organization | None to speak of |
| Message-ID | <ln37odvvuo.fsf@kst-u.example.com> (permalink) |
| References | <994e7598-1570-4931-8cee-d5a7abb967a5@googlegroups.com> <njul2t$c0j$1@dont-email.me> |
James Kuyper <jameskuyper@verizon.net> writes:
[...]
> Other people have already answered you correctly, but I want to put a
> somewhat different emphasis on my answer.
>
> For any given implementation, there might not be any way to do what
> you're asking about. However, if there is, then the appropriate code is
> very likely to be:
>
> int *pitwo = (int*)0x00000002;
> char *pcsix = (char*)0x00000006;
Note that the use of hexadecimal with leading zeros is mainly for the
benefit of the reader, to emphasize that these are 32-bit numbers (and
assuming a machine with 32-bit addresses). The above is exactly
equivalent to:
int *pitwo = (int*)2;
char *pcsix = (char*)6;
but the hex version is clearer.
--
Keith Thompson (The_Other_Keith) kst-u@mib.org <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"
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how does one access a specific address location in C? G G <gdotone@gmail.com> - 2016-06-16 06:32 -0700
Re: how does one access a specific address location in C? gazelle@shell.xmission.com (Kenny McCormack) - 2016-06-16 14:00 +0000
Re: how does one access a specific address location in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-06-16 15:07 +0100
Re: how does one access a specific address location in C? G G <gdotone@gmail.com> - 2016-06-16 07:18 -0700
Re: how does one access a specific address location in C? Robert Wessel <robertwessel2@yahoo.com> - 2016-06-16 11:38 -0500
Re: how does one access a specific address location in C? Mark Storkamp <mstorkamp@yahoo.com> - 2016-06-16 09:16 -0500
Re: how does one access a specific address location in C? G G <gdotone@gmail.com> - 2016-06-16 07:50 -0700
Re: how does one access a specific address location in C? G G <gdotone@gmail.com> - 2016-06-16 08:04 -0700
Re: how does one access a specific address location in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-06-16 17:03 +0100
Re: how does one access a specific address location in C? G G <gdotone@gmail.com> - 2016-06-16 10:01 -0700
Re: how does one access a specific address location in C? Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-06-16 14:29 -0400
Re: how does one access a specific address location in C? Mark Storkamp <mstorkamp@yahoo.com> - 2016-06-16 13:34 -0500
Re: how does one access a specific address location in C? BartC <bc@freeuk.com> - 2016-06-16 19:57 +0100
Re: how does one access a specific address location in C? raltbos@xs4all.nl (Richard Bos) - 2016-06-18 20:50 +0000
Re: how does one access a specific address location in C? Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-06-18 17:23 -0400
Re: how does one access a specific address location in C? raltbos@xs4all.nl (Richard Bos) - 2016-06-18 21:30 +0000
Re: how does one access a specific address location in C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-06-16 21:09 +0100
Re: how does one access a specific address location in C? Mark Storkamp <mstorkamp@yahoo.com> - 2016-06-16 11:10 -0500
Re: how does one access a specific address location in C? James Kuyper <jameskuyper@verizon.net> - 2016-06-16 13:41 -0400
Re: how does one access a specific address location in C? G G <gdotone@gmail.com> - 2016-06-16 11:14 -0700
Re: how does one access a specific address location in C? Keith Thompson <kst-u@mib.org> - 2016-06-16 11:26 -0700
Re: how does one access a specific address location in C? James Kuyper <jameskuyper@verizon.net> - 2016-06-16 16:38 -0400
Re: how does one access a specific address location in C? "James R. Kuyper" <jameskuyper@verizon.net> - 2016-06-18 11:32 -0400
Re: how does one access a specific address location in C? James Kuyper <jameskuyper@verizon.net> - 2016-06-16 12:45 -0400
Re: how does one access a specific address location in C? G G <gdotone@gmail.com> - 2016-06-16 10:19 -0700
Re: how does one access a specific address location in C? Keith Thompson <kst-u@mib.org> - 2016-06-16 11:20 -0700
Re: how does one access a specific address location in C? supercat@casperkitty.com - 2016-06-16 11:38 -0700
Re: how does one access a specific address location in C? raltbos@xs4all.nl (Richard Bos) - 2016-06-18 13:19 +0000
Re: how does one access a specific address location in C? supercat@casperkitty.com - 2016-06-18 07:11 -0700
Re: how does one access a specific address location in C? Robert Wessel <robertwessel2@yahoo.com> - 2016-06-18 14:41 -0500
Re: how does one access a specific address location in C? supercat@casperkitty.com - 2016-06-18 16:02 -0700
Re: how does one access a specific address location in C? Les Cargill <lcargill99@comcast.com> - 2016-06-18 18:53 -0500
Re: how does one access a specific address location in C? supercat@casperkitty.com - 2016-06-18 17:31 -0700
Re: how does one access a specific address location in C? Les Cargill <lcargill99@comcast.com> - 2016-06-19 06:47 -0500
Re: how does one access a specific address location in C? Robert Wessel <robertwessel2@yahoo.com> - 2016-06-19 00:37 -0500
Re: how does one access a specific address location in C? BartC <bc@freeuk.com> - 2016-06-19 11:07 +0100
Re: how does one access a specific address location in C? Robert Wessel <robertwessel2@yahoo.com> - 2016-06-19 16:21 -0500
Re: how does one access a specific address location in C? Robert Wessel <robertwessel2@yahoo.com> - 2016-06-19 00:34 -0500
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