On 02.01.2011, at 15:39, Aurelien Jarno wrote: > On PPC the default qNaN doesn't have the sign bit set.
The spec says "don't care" for the sign bit. Did you extract the value empirically? I'm not saying it's wrong - the default 32 Bit value seems to be 0x7FC0_0000 (2.06 ISA 6.6.2.2). Hrm ... reading section 5.4.2: A special QNaN is sometimes supplied as the default QNaN for a disabled invalid-operation exception; it has a plus sign, the leftmost 6 bits of the combination field set to 0b111110 and remaining bits in the combination field and the trailing significand field set to zero. So I guess you're right. Acked-by: Alexander Graf <ag...@suse.de> Alex
