Peter Maydell eaf3805f36 softfloat: Revert and reimplement remaining parts of b645bb4885 and 5a6932d51d ... Revert the parts of commits b645bb4885 and 5a6932d51d which are still in the codebase and under a SoftFloat-2b license. Reimplement support for architectures where the most significant bit in the mantissa is 1 for a signaling NaN rather than a quiet NaN, by adding handling for SNAN_BIT_IS_ONE being set to the functions which test values for NaN-ness. This includes restoring the bugfixes lost in the reversion where some of the float*_is_quiet_nan() functions were returning true for both signaling and quiet NaNs. [This is a mechanical squashing together of two separate "revert" and "reimplement" patches.] Backports commit 332d5849708d11b835e0b36f4e26e8b36bfb3f5a from qemu		2018-02-12 12:57:15 -05:00
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softfloat-macros.h	softfloat: Apply patch corresponding to rebasing to softfloat-2a	2018-02-12 12:49:49 -05:00
softfloat-specialize.h	softfloat: Revert and reimplement remaining parts of b645bb4885 and 5a6932d51d	2018-02-12 12:57:15 -05:00
softfloat.c	softfloat: Revert and reimplement remaining portions of 75d62a5856 and 3430b0be36f	2018-02-12 12:52:32 -05:00