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/freebsd-10.0-release/sys/amd64/amd64/
H A Dsupport.Sdiff 13065 Wed Dec 27 16:54:51 MST 1995 dg Update bcopyb & bcopy to reflect changes I made in the libc version of
bcopy:

Be smarter about handling overlapped copies and only go backwards if it
is really necessary. Going backwards on a P6 is much slower than forwards
and it's a little slower on a P5. Also moved the count mask and 'std'
down a few lines - it's a couple percent faster this way on a P5.
/freebsd-10.0-release/sys/i386/i386/
H A Dsupport.sdiff 13065 Wed Dec 27 16:54:51 MST 1995 dg Update bcopyb & bcopy to reflect changes I made in the libc version of
bcopy:

Be smarter about handling overlapped copies and only go backwards if it
is really necessary. Going backwards on a P6 is much slower than forwards
and it's a little slower on a P5. Also moved the count mask and 'std'
down a few lines - it's a couple percent faster this way on a P5.

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