On Thu, 2013-08-29 at 05:55 +0000, Vineet Gupta wrote: > The intent of writing orig code was to generate only 1 MPYHU insn (32*32 = > high-part-64) for the whole math, at any optimization level whatsoever. If the > first MPY is overflowing, u r likely spinning for > 10,000 usec (10ms) which > is 1 > scheduling tick on ARC - not good - presumably for hardware debug. It would be > better to use a tight loop there and throw it out later.
It's a delay loop. Does it matter whether or not a multiply or division is used? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
