public inbox for ecos-discuss@sourceware.org
 help / color / mirror / Atom feed
From: "Edward, Yan-Chi, Lin" <yanchi@oak.com.tw>
To: "Ecos-Discuss" <ecos-discuss@sourceware.cygnus.com>
Subject: [ECOS] How do I get __ARMEB__ defined ?
Date: Sun, 10 Dec 2000 19:23:00 -0000	[thread overview]
Message-ID: <NDBBIJMAFMCKGDEBEFICCENHFAAA.yanchi@oak.com.tw> (raw)


Hi

I have a bigendian ARM cpu now, but I don't know how do I get __ARMEB__ defined ?
Also could someone explain what does the macro in hal_io.h for big endian means ?
Why ^3 ?

Thanks a lot
Edward Lin
----------------------------------------------------------------------------------------------------
#else // Big-endian version

#define HAL_READ_UINT8( _register_, _value_ ) \
        ((_value_) = *((volatile CYG_BYTE *)((CYG_ADDRWORD)(_register_)^3)))

#define HAL_WRITE_UINT8( _register_, _value_ ) \
        (*((volatile CYG_BYTE *)((CYG_ADDRWORD)(_register_)^3)) = (_value_))


  	

             reply	other threads:[~2000-12-10 19:23 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2000-12-10 19:23 Edward, Yan-Chi, Lin [this message]
2000-12-11 13:36 ` Jonathan Larmour
     [not found] <NDBBIJMAFMCKGDEBEFICCEOCFAAA.yanchi@oak.com.tw>
2000-12-13  9:07 ` Jonathan Larmour

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=NDBBIJMAFMCKGDEBEFICCENHFAAA.yanchi@oak.com.tw \
    --to=yanchi@oak.com.tw \
    --cc=ecos-discuss@sourceware.cygnus.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).