Jamie Lokier wrote: > > Related query: > > Does the Perl script being replaced use 64-bit arithmetic? Because > many Perl installations only do 32-bit arithmetic. > > If the Perl version works in 32-bit arithmetic, why does the shell > version not do the same thing? > The Perl version uses Math::BigInt, a Perl standard module (with a canned-values fallback for ancient or minimal Perl installations) to do arbitrary precision arithmetic. The original version also produced constants that could be used with 64-bit values, but since gcc doesn't support 128-bit arithmetic on 32-bit platforms (gcc *does* support 128-bit arithmetic on 64-bit platforms) we didn't end up using it and removed them, although the code to generate them can still be activated. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
