Messages in this thread | | | Subject | Re: div64.h:do_div() bug | From | Andreas Schwab <> | Date | Tue, 30 Sep 2003 14:30:40 +0200 |
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Matti Aarnio <matti.aarnio@zmailer.org> writes:
> On Tue, Sep 30, 2003 at 01:14:38PM +0300, Matti Aarnio wrote: >> On Tue, Sep 30, 2003 at 11:52:29AM +0200, Rogier Wolff wrote: >> > On Mon, Sep 29, 2003 at 03:25:19PM +0200, Artur Klauser wrote: >> > > I've found that a bug in asm-arm/div64.h:do_div() is preventing correct >> > > conversion of timestamps in smbfs (and probably ntfs as well) from NT to >> > >> > Nope. >> >> Nope yourself. >> >> > > if (in.n64 != out.n64) { >> > > printf("FAILURE: asm/div64.h:do_div() is broken for 64-bit dividends\n"); >> > >> > do_div should be/is documented as not doing 64 bit dividents. It does >> > 64/32 -> 32 divides, IIRC... >> >> 64/32 -> 64,32 >> >> The REMAINDER is 32 bit value. > > Non-native english speaker makes the mistake.. MODULUS is 32 bits as is > DIVISOR, REMAINDER is 64 bit, as is DIVIDEND. > > That is: > DIVIDEND / DIVISOR -> REMAINDER , MODULUS ^^^^^^^^^^^^^^^^^^^ ??? QUOTIENT, REMAINDER
Andreas.
-- Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different." - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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