diff options
| author | Mark Brown <[email protected]> | 2016-02-09 18:20:39 +0000 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2016-02-09 18:20:39 +0000 |
| commit | fcdcc79628a1919bde9acf239e364f65bab6327c (patch) | |
| tree | 5499be387cf3028c90ac083b1cf866ebed7bf7e0 /arch/mips/math-emu/ieee754sp.c | |
| parent | 7a8d44bc89e5cddcd5c0704a11a90484d36ba6ba (diff) | |
| parent | a0a90718f18264dc904d34a580f332006f5561e9 (diff) | |
Merge branch 'topic/acpi' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-pxa2xx
Diffstat (limited to 'arch/mips/math-emu/ieee754sp.c')
| -rw-r--r-- | arch/mips/math-emu/ieee754sp.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/mips/math-emu/ieee754sp.c b/arch/mips/math-emu/ieee754sp.c index ca8e35e33bf7..def00ffc50fc 100644 --- a/arch/mips/math-emu/ieee754sp.c +++ b/arch/mips/math-emu/ieee754sp.c @@ -37,8 +37,11 @@ static inline int ieee754sp_isnan(union ieee754sp x) static inline int ieee754sp_issnan(union ieee754sp x) { + int qbit; + assert(ieee754sp_isnan(x)); - return SPMANT(x) & SP_MBIT(SP_FBITS - 1); + qbit = (SPMANT(x) & SP_MBIT(SP_FBITS - 1)) == SP_MBIT(SP_FBITS - 1); + return ieee754_csr.nan2008 ^ qbit; } @@ -51,7 +54,12 @@ union ieee754sp __cold ieee754sp_nanxcpt(union ieee754sp r) assert(ieee754sp_issnan(r)); ieee754_setcx(IEEE754_INVALID_OPERATION); - return ieee754sp_indef(); + if (ieee754_csr.nan2008) + SPMANT(r) |= SP_MBIT(SP_FBITS - 1); + else + r = ieee754sp_indef(); + + return r; } static unsigned ieee754sp_get_rounding(int sn, unsigned xm) |