diff options
author | Ulrich Drepper <drepper@redhat.com> | 1999-12-29 18:11:48 +0000 |
---|---|---|
committer | Ulrich Drepper <drepper@redhat.com> | 1999-12-29 18:11:48 +0000 |
commit | d876f5327985eac3bf3109e9429febc8a8954ff5 (patch) | |
tree | 2ab0233054876a59507ff2ef9652ef81b1317991 /soft-fp/sysdeps/sparc/sparc64/qp_fgt.c | |
parent | dbbbaf53352501384c57512e2251c9d7169388af (diff) | |
download | glibc-d876f5327985eac3bf3109e9429febc8a8954ff5.tar glibc-d876f5327985eac3bf3109e9429febc8a8954ff5.tar.gz glibc-d876f5327985eac3bf3109e9429febc8a8954ff5.tar.bz2 glibc-d876f5327985eac3bf3109e9429febc8a8954ff5.zip |
Update.
1999-12-29 Ulrich Drepper <drepper@cygnus.com>
* soft-fp/*: Tons of new files to implement floating-point arithmetic
in software.
Contributed by Richard Henderson, Jakub Jelinek and others.
Diffstat (limited to 'soft-fp/sysdeps/sparc/sparc64/qp_fgt.c')
-rw-r--r-- | soft-fp/sysdeps/sparc/sparc64/qp_fgt.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/soft-fp/sysdeps/sparc/sparc64/qp_fgt.c b/soft-fp/sysdeps/sparc/sparc64/qp_fgt.c new file mode 100644 index 0000000000..e389fd9d41 --- /dev/null +++ b/soft-fp/sysdeps/sparc/sparc64/qp_fgt.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_fgt(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_Q(r, B, A, 3); + if (r == 3) + FP_SET_EXCEPTION(FP_EX_INVALID); + + QP_HANDLE_EXCEPTIONS( + __asm ( + "ldd [%0], %%f52 + ldd [%0+8], %%f54 + ldd [%1], %%f56 + ldd [%1+8], %%f58 + fcmpeq %%fcc3, %%f52, %%f56 + " : : "r" (a), "r" (b) : QP_CLOBBER_CC); + _FPU_GETCW(_fcw); + r = ((_fcw >> 36) & 3) - 3); + + return (r == -1); +} |