"Garrett D'Amore" <[EMAIL PROTECTED]> wrote:
> > - You take care about Bit-ordering (this may be different from Byte-order
> > see Plan 9 compiler...)
> >
>
> Yeah, I don't like to rely on ordering of the bits within the C
> structure. C structures are fine for bit fields used only by software,
> but when the intent is to define a mapping to hardware registers, I find
> that #define's are a lot more portable.
>
> And like Jim said, I usually just set up the defines for my hardware
> once, and forget about them. I rarely use special macros.
If you write code for one specific piece of hardware you may be right,
if you like to create a framework for a huge bunch of devices like SCSI,
things look different.
Code should also be readable, in special if you would have to read 50-100
different command reference manuals for vendor unique commands from different
CD/DVD/BD drives in order to understand the code.
Jörg
--
EMail:[EMAIL PROTECTED] (home) Jörg Schilling D-13353 Berlin
[EMAIL PROTECTED] (uni)
[EMAIL PROTECTED] (work) Blog: http://schily.blogspot.com/
URL: http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily
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