diff options
author | joseph <joseph@7b3dc134-2b1b-0410-93df-9e9f96275f8d> | 2008-12-10 16:39:54 +0000 |
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committer | joseph <joseph@7b3dc134-2b1b-0410-93df-9e9f96275f8d> | 2008-12-10 16:39:54 +0000 |
commit | 0f1e140e796f55cf5f07d39707f3e88d335f4ff1 (patch) | |
tree | e44d49e4cb8da17389d4ffa57e784f7ee91d3381 /ports/sysdeps/alpha/soft-fp/ots_cmpe.c | |
parent | 8acd6170c246b159d26f05d85fa256746391d3d7 (diff) |
Merge changes between r7357 and r7510 from /fsf/trunk.
git-svn-id: svn://svn.eglibc.org/trunk@7511 7b3dc134-2b1b-0410-93df-9e9f96275f8d
Diffstat (limited to 'ports/sysdeps/alpha/soft-fp/ots_cmpe.c')
-rw-r--r-- | ports/sysdeps/alpha/soft-fp/ots_cmpe.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/ports/sysdeps/alpha/soft-fp/ots_cmpe.c b/ports/sysdeps/alpha/soft-fp/ots_cmpe.c new file mode 100644 index 000000000..001eb75a9 --- /dev/null +++ b/ports/sysdeps/alpha/soft-fp/ots_cmpe.c @@ -0,0 +1,83 @@ +/* Software floating-point emulation: comparison. + Copyright (C) 1997,1999,2004 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 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 "local-soft-fp.h" + +static long +internal_compare (long al, long ah, long bl, long bh) +{ + FP_DECL_EX; + FP_DECL_Q(A); FP_DECL_Q(B); + long r; + + FP_UNPACK_RAW_Q(A, a); + FP_UNPACK_RAW_Q(B, b); + FP_CMP_Q (r, A, B, 2); + + /* Relative comparisons signal invalid operation if either operand is NaN. */ + if (r == 2) + { + FP_SET_EXCEPTION(FP_EX_INVALID); + FP_HANDLE_EXCEPTIONS; + } + + return r; +} + +long +_OtsLssX (long al, long ah, long bl, long bh) +{ + long r = internal_compare (al, ah, bl, bh); + if (r == 2) + return -1; + else + return r < 0; +} + +long +_OtsLeqX (long al, long ah, long bl, long bh) +{ + long r = internal_compare (al, ah, bl, bh); + if (r == 2) + return -1; + else + return r <= 0; +} + +long +_OtsGtrX (long al, long ah, long bl, long bh) +{ + long r = internal_compare (al, ah, bl, bh); + if (r == 2) + return -1; + else + return r > 0; +} + +long +_OtsGeqX (long al, long ah, long bl, long bh) +{ + long r = internal_compare (al, ah, bl, bh); + if (r == 2) + return -1; + else + return r >= 0; +} |