diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-03-25 03:53:42 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-03-25 03:53:42 -0300 |
| commit | 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch) | |
| tree | fa581f6dc1c0596391690d1f67eceef3af8246dc /arch/mips/math-emu/ieee754sp.c | |
| parent | d4e493caf788ef44982e131ff9c786546904d934 (diff) | |
Linux-libre 4.5-gnu
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 ca8e35e33..def00ffc5 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) |