Re: Learning the FreeBSD Kernel

[Warner Losh]

In message <[EMAIL PROTECTED]> Jeroen Ruigrok/Asmodai 
writes:
: So my statement was actually more in reflection to NetBSD's support of
: it.  Whether or not they support busses which do 8 byte atomic
: reads/writes I am not sure of.
: 
: Thanks for the reality adjustment Warner. =)

Yes.  Looking at the bus.h in NetBSD/i386 I see:

#if 0   /* Cause a link error for bus_space_read_8 */
#define bus_space_read_8(t, h, o)       !!! bus_space_read_8 unimplemented !!!
#endif

The Netbsd/alpha version appears to have it defined.  Makes sense when
you think about it.

Warner


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