diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc32/power5/fpu/s_isnanf.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc32/power5/fpu/s_isnanf.S | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/power5/fpu/s_isnanf.S b/sysdeps/powerpc/powerpc32/power5/fpu/s_isnanf.S new file mode 100644 index 0000000000..9b1e95f35f --- /dev/null +++ b/sysdeps/powerpc/powerpc32/power5/fpu/s_isnanf.S @@ -0,0 +1,46 @@ +/* isnan(). PowerPC32 version. + Copyright (C) 2008 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <math_ldbl_opt.h> + +/* int __isnanf(x) */ + .machine power5 +EALIGN (__isnanf, 4, 0) + stwu r1,-32(r1) + cfi_adjust_cfa_offset (32) + stfs fp1,28(r1) /* copy FPR to GPR */ + nop + nop + lwz r4,28(r1) + lis r0,0x7f80 /* const long r0 0x7f800000 */ + clrlwi r4,r4,1 /* x = fabs(x) */ + cmpw cr7,r4,r0 /* if (fabs(x) =< inf) */ + li r3,0 /* then return 0 */ + addi r1,r1,32 + cfi_adjust_cfa_offset (-32) + blelr+ cr7 +L(NaN): + li r3,1 /* else return 1 */ + blr + END (__isnanf) + +hidden_def (__isnanf) +weak_alias (__isnanf, isnanf) + |