diff options
Diffstat (limited to 'arch/mips/math-emu/sp_sqrt.c')
| -rw-r--r-- | arch/mips/math-emu/sp_sqrt.c | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/arch/mips/math-emu/sp_sqrt.c b/arch/mips/math-emu/sp_sqrt.c index fed20175f5f..b7c098a86f9 100644 --- a/arch/mips/math-emu/sp_sqrt.c +++ b/arch/mips/math-emu/sp_sqrt.c @@ -5,8 +5,6 @@ * MIPS floating point support * Copyright (C) 1994-2000 Algorithmics Ltd. * - * ######################################################################## - * * This program is free software; you can distribute it and/or modify it * under the terms of the GNU General Public License (Version 2) as * published by the Free Software Foundation. @@ -18,15 +16,12 @@ * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * ######################################################################## + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. */ - #include "ieee754sp.h" -ieee754sp ieee754sp_sqrt(ieee754sp x) +union ieee754sp ieee754sp_sqrt(union ieee754sp x) { int ix, s, q, m, t, i; unsigned int r; @@ -35,34 +30,38 @@ ieee754sp ieee754sp_sqrt(ieee754sp x) /* take care of Inf and NaN */ EXPLODEXSP; - CLEARCX; + ieee754_clearcx(); FLUSHXSP; /* x == INF or NAN? */ switch (xc) { case IEEE754_CLASS_QNAN: /* sqrt(Nan) = Nan */ - return ieee754sp_nanxcpt(x, "sqrt"); + return ieee754sp_nanxcpt(x); + case IEEE754_CLASS_SNAN: - SETCX(IEEE754_INVALID_OPERATION); - return ieee754sp_nanxcpt(ieee754sp_indef(), "sqrt"); + ieee754_setcx(IEEE754_INVALID_OPERATION); + return ieee754sp_nanxcpt(ieee754sp_indef()); + case IEEE754_CLASS_ZERO: /* sqrt(0) = 0 */ return x; + case IEEE754_CLASS_INF: if (xs) { /* sqrt(-Inf) = Nan */ - SETCX(IEEE754_INVALID_OPERATION); - return ieee754sp_nanxcpt(ieee754sp_indef(), "sqrt"); + ieee754_setcx(IEEE754_INVALID_OPERATION); + return ieee754sp_nanxcpt(ieee754sp_indef()); } /* sqrt(+Inf) = Inf */ return x; + case IEEE754_CLASS_DNORM: case IEEE754_CLASS_NORM: if (xs) { /* sqrt(-x) = Nan */ - SETCX(IEEE754_INVALID_OPERATION); - return ieee754sp_nanxcpt(ieee754sp_indef(), "sqrt"); + ieee754_setcx(IEEE754_INVALID_OPERATION); + return ieee754sp_nanxcpt(ieee754sp_indef()); } break; } @@ -99,12 +98,12 @@ ieee754sp ieee754sp_sqrt(ieee754sp x) } if (ix != 0) { - SETCX(IEEE754_INEXACT); + ieee754_setcx(IEEE754_INEXACT); switch (ieee754_csr.rm) { - case IEEE754_RP: + case FPU_CSR_RU: q += 2; break; - case IEEE754_RN: + case FPU_CSR_RN: q += (q & 1); break; } |