diff options
Diffstat (limited to 'sysdeps/sparc/sparc64/soft-fp/qp_feq.c')
| -rw-r--r-- | sysdeps/sparc/sparc64/soft-fp/qp_feq.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc64/soft-fp/qp_feq.c b/sysdeps/sparc/sparc64/soft-fp/qp_feq.c new file mode 100644 index 0000000000..1d32ec6fe7 --- /dev/null +++ b/sysdeps/sparc/sparc64/soft-fp/qp_feq.c @@ -0,0 +1,51 @@ +/* Software floating-point emulation. + Return 1 if (*a) == (*b) + Copyright (C) 1997,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com) and + Jakub Jelinek (jj@ultra.linux.cz). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "soft-fp.h" +#include "quad.h" + +int _Qp_feq(const long double *a, const long double *b) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + int r; + + FP_INIT_ROUNDMODE; + FP_UNPACK_RAW_QP(A, a); + FP_UNPACK_RAW_QP(B, b); + FP_CMP_EQ_Q(r, A, B); + if (r && (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + + QP_HANDLE_EXCEPTIONS( + __asm ( + "ldd [%0], %%f52 + ldd [%0+8], %%f54 + ldd [%1], %%f56 + ldd [%1+8], %%f58 + fcmpq %%fcc3, %%f52, %%f56 + " : : "r" (a), "r" (b) : QP_CLOBBER_CC); + _FPU_GETCW(_fcw); + r = ((_fcw >> 36) & 3)); + + return !r; +} |