Can't I get a /dev/one?
Benjamin J. Weiss
benjamin at Weiss.name
Thu Jul 15 19:34:51 UTC 2004
On Thu, 15 Jul 2004, William M. Quarles wrote:
> Jim Higson wrote:
> > What do you mean by "all ones" - all binary ones (which is filling it with
> > byte 255) or ones on the byte or word level?
>
> Binary ones.
A byte of all 1's would be 11111111b, which would be 0xff hex or 255 for
an unsigned char (if you're using C).
A word would be 1111111111111111b, or 0xffff hex, or 65535 for an unsigned
short int.
A "binary 1", would be either 00000001b (0x01) or 0000000000000001b
(0x0001).
Most utilities, when talking about "filling a hard drive with all 1's" (in
my experience) speak of the first or second option above, depending upon
who wrote the code, and when.
Ben
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