Groups > comp.os.linux.advocacy > #88404

Re: Reading the Riot Act To ARM's developers

From	Kelsey Bjarnason <kbjarnason@gmail.com>
Newsgroups	comp.os.linux.advocacy, comp.os.linux.embedded
Subject	Re: Reading the Riot Act To ARM's developers
Date	2012-02-11 10:34 -0800
Organization	A noiseless patient Spider
Message-ID	<muoi09-lv3.ln1@spankydtr.localhost.net> (permalink)
References	<WGiYq.100467$WX2.28685@newsfe28.ams2> <4iah09-1p2.ln1@spankydtr.localhost.net> <PYqZq.3558$FY5.2955@newsfe10.ams2>

Cross-posted to 2 groups.

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[snips]

On Sat, 11 Feb 2012 09:58:06 +0000, 7 wrote:

> #define INT_XMA (1 << 4)
> #define ENABLE_RS232  SYSCON->INT |= INT_XMA
> 
> 
> The problem I am having is what does that '4' mean. Is it 4 or 14 or
> something else? I need a datasheet. Thats just crap programming.


No, you need to learn the concept of commenting your code:

; 4th LSB is XMA interrupt enable/disable on MS4 series processors
#define INT_XMA (1<<4) 

Now you know exactly what the 4 is, where it came from, why it's there 
and what it does.

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Thread

Re: Reading the Riot Act To ARM's developers Kelsey Bjarnason <kbjarnason@gmail.com> - 2012-02-10 21:22 -0800
  Re: Reading the Riot Act To ARM's developers 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2012-02-11 09:58 +0000
    Re: Reading the Riot Act To ARM's developers David Brown <david.brown@removethis.hesbynett.no> - 2012-02-11 15:16 +0100
      Re: Reading the Riot Act To ARM's developers 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2012-02-12 00:56 +0000
        Re: Reading the Riot Act To ARM's developers David Brown <david.brown@removethis.hesbynett.no> - 2012-02-12 10:24 +0100
          Re: Reading the Riot Act To ARM's developers "Ezekiel" <zeke@nosuchemail.com> - 2012-02-12 08:21 -0500
          Re: Reading the Riot Act To ARM's developers 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2012-02-12 19:12 +0000
            Re: Reading the Riot Act To ARM's developers Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2012-02-13 08:54 +0200
              Re: Reading the Riot Act To ARM's developers 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2012-02-13 21:37 +0000
                Re: Reading the Riot Act To ARM's developers Grant Edwards <invalid@invalid.invalid> - 2012-02-13 22:07 +0000
                Re: Reading the Riot Act To ARM's developers 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2012-02-13 23:31 +0000
                Re: Reading the Riot Act To ARM's developers 7 <email_at_www_at_enemygadgets_dot_com@enemygadgets.com> - 2012-02-13 23:31 +0000
                Re: Reading the Riot Act To ARM's developers DFS <nospam@dfs.com> - 2012-02-13 17:21 -0500
            Re: Reading the Riot Act To ARM's developers David Brown <david@westcontrol.removethisbit.com> - 2012-02-13 09:12 +0100
    Re: Reading the Riot Act To ARM's developers Kelsey Bjarnason <kbjarnason@gmail.com> - 2012-02-11 10:34 -0800

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