Re: [PATCH 1/3]: Replace kernel/timeconst.pl with kernel/timeconst.sh

H. Peter Anvin
2009-01-04T20:40:33Z

Rob Landley wrote:
>
> C) The only calculation which can overflow 64 bits (the ADJ32 one) turns out
> not to need arbitrary precision math, just 72 bits, and if it ever uses more
> than 32 then bottom 32 are all zero before the divide so you can do it in
> three lines.
>

... for the current code (32 bits). When we get an overflow-less 64-bit
implementation, this code will have to be redone, which is not true for
a properly done implementation.

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.