Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.c > #64644

Re: Linked lists, message passing

Show all headers | View raw

On 7/3/15 3:16 PM, Morten W. Petersen wrote:

> The CPU registers.  If the code doesn't work as expected, the
> lowest level one can look at is the machine code and what
> happens in memory, what instructions are used, what the
> current state is and so on.
>
> So far I've looked at the C code and simplified it when it
> didn't work as expected, with good results.
>
> But, if something doesn't work as expected, it is nice to
> have a clear view of what is actually going on, so that
> for example my assumptions and understanding of how something
> in C works can be adjusted.

Actually, a number of microcontrollers allow looking at otherwise hidden 
internal circuits via a JTAGS capability – and in at least one instance 
(a Philips MIPS implementation) there was a proprietary “EJTAGS” 
(Extended-JTAGS) capability to examine the state of every gate, latch. 
and I/O pin on the chip.

I would suggest avoiding being limited by past experience, because it’s 
pretty well guaranteed that next week someone is going to move those 
limits in unanticipated directions. :-)

-- 
Morris Dovey
http://www.iedu.com/Solar

Back to comp.lang.c | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Linked lists, message passing "Morten W. Petersen" <morphex@gmail.com> - 2015-06-19 05:49 +0200
  Re: Linked lists, message passing Ike Naar <ike@iceland.freeshell.org> - 2015-06-19 06:51 +0000
    Re: Linked lists, message passing "Morten W. Petersen" <morphex@gmail.com> - 2015-06-19 09:08 +0200
      Re: Linked lists, message passing Barry Schwarz <schwarzb@dqel.com> - 2015-06-19 02:08 -0700
        Re: Linked lists, message passing "Morten W. Petersen" <morphex@gmail.com> - 2015-06-19 14:11 +0200
          Re: Linked lists, message passing raltbos@xs4all.nl (Richard Bos) - 2015-06-19 13:47 +0000
            Re: Linked lists, message passing "Morten W. Petersen" <morphex@gmail.com> - 2015-06-19 15:52 +0200
              Re: Linked lists, message passing Robert Wessel <robertwessel2@yahoo.com> - 2015-06-19 22:07 -0500
              Re: Linked lists, message passing raltbos@xs4all.nl (Richard Bos) - 2015-06-27 12:25 +0000
                Re: Linked lists, message passing "Morten W. Petersen" <morphex@gmail.com> - 2015-06-29 09:03 +0200
                Re: Linked lists, message passing raltbos@xs4all.nl (Richard Bos) - 2015-07-03 17:28 +0000
                Re: Linked lists, message passing "Morten W. Petersen" <morphex@gmail.com> - 2015-07-03 22:16 +0200
                Re: Linked lists, message passing Morris Dovey <mrdovey@iedu.com> - 2015-07-03 16:44 -0500
                Re: Linked lists, message passing "Morten W. Petersen" <morphex@gmail.com> - 2015-07-04 01:12 +0200
                Re: Linked lists, message passing Morris Dovey <mrdovey@iedu.com> - 2015-07-03 18:50 -0500
                Re: Linked lists, message passing "Morten W. Petersen" <morphex@gmail.com> - 2015-07-04 09:39 +0200
                Re: Linked lists, message passing Morris Dovey <mrdovey@iedu.com> - 2015-07-04 04:34 -0500
                Re: Linked lists, message passing Bartc <bc@freeuk.com> - 2015-07-04 11:01 +0100
                Re: Linked lists, message passing Geoff <geoff@invalid.invalid> - 2015-07-04 11:43 -0700
                Re: Linked lists, message passing "Morten W. Petersen" <morphex@gmail.com> - 2015-07-05 18:49 +0200
                Re: Linked lists, message passing Geoff <geoff@invalid.invalid> - 2015-07-05 12:30 -0700
                Re: Linked lists, message passing "Morten W. Petersen" <morphex@gmail.com> - 2015-07-05 22:39 +0200
                Re: Linked lists, message passing Geoff <geoff@invalid.invalid> - 2015-07-05 15:08 -0700
                Re: Linked lists, message passing glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-07-06 01:05 +0000
                Re: Linked lists, message passing Geoff <geoff@invalid.invalid> - 2015-07-05 23:55 -0700
                Re: Linked lists, message passing "Chris M. Thomasson" <nospam@nospam.nospam> - 2015-07-04 11:48 -0700
                Re: Linked lists, message passing Morris Dovey <mrdovey@iedu.com> - 2015-07-03 18:51 -0500
                Re: Linked lists, message passing G G <gdotone@gmail.com> - 2015-07-03 18:13 -0700
  Re: Linked lists, message passing Richard Heathfield <rjh@cpax.org.uk> - 2015-06-19 08:12 +0100
    Re: Linked lists, message passing "Morten W. Petersen" <morphex@gmail.com> - 2015-06-19 09:30 +0200
      Re: Linked lists, message passing Richard Heathfield <rjh@cpax.org.uk> - 2015-06-19 08:59 +0100
        Re: Linked lists, message passing Noob <root@127.0.0.1> - 2015-06-19 10:14 +0200
          Re: Linked lists, message passing Richard Heathfield <rjh@cpax.org.uk> - 2015-06-19 09:40 +0100
            Re: Linked lists, message passing Ian Collins <ian-news@hotmail.com> - 2015-06-20 15:14 +1200
    Re: Linked lists, message passing jacobnavia <jacob@jacob.remcomp.fr> - 2015-06-19 18:10 +0200
      Re: Linked lists, message passing Richard Heathfield <rjh@cpax.org.uk> - 2015-06-19 17:32 +0100
        Re: Linked lists, message passing Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-29 00:56 -0700
      Re: Linked lists, message passing Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-29 00:49 -0700
    Re: Linked lists, message passing Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-11 08:32 -0700

csiph-web