Re: Long long arithmetic

Peter Samuelson (peter@cadcamlab.org)
Fri, 9 Jun 2000 08:56:14 -0500 (CDT)

[Richard B. Johnson <root@chaos.analogic.com>]
> I suggest borrowing some long long stuff from the libgcc source and
> putting it into the kernel. We keep getting hit by requests for long
> long division.
>
> This would quiet that and, if the resulting drivers or other code
> eventually get into the kernel it will probably get fixed to not have
> to use the CPU-hog divide.

You really think so? I very much doubt it. For most instances of this
sort of thing it's not obvious just from staring at the code that
there's a long long involved. It either just works, or it just fails
to link, and if the latter, you find it and replace with a shift.

Peter

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