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Re: negation of float on H8300


>Not if it's a signalling NaN.  If the chip only supports QNaNs, then
>you might be able to get away with it.

Flipping the sign bit is correct even for a signalling NaN.  See item 2 in
the Appendix of IEEE Std 754-1985 (Binary Floating-Point Arithmetic).
See also item 2 in the Appendix of IEEE Std 854-1987 (Radix-Independent
Floating-Point Arithmetic).

Jim


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