sysdeps/alpha/ots_cmpe.c

   1 /* Software floating-point emulation: comparison.
   2    Copyright (C) 1997-2022 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include "local-soft-fp.h"
  20
  21 static long
  22 internal_compare (long al, long ah, long bl, long bh)
  23 {
  24   FP_DECL_EX;
  25   FP_DECL_Q(A); FP_DECL_Q(B);
  26   long r;
  27
  28   AXP_UNPACK_RAW_Q(A, a);
  29   AXP_UNPACK_RAW_Q(B, b);
  30   FP_CMP_Q (r, A, B, 2, 2);
  31
  32   FP_HANDLE_EXCEPTIONS;
  33
  34   return r;
  35 }
  36
  37 long
  38 _OtsLssX (long al, long ah, long bl, long bh)
  39 {
  40   long r = internal_compare (al, ah, bl, bh);
  41   if (r == 2)
  42     return -1;
  43   else
  44     return r < 0;
  45 }
  46
  47 long
  48 _OtsLeqX (long al, long ah, long bl, long bh)
  49 {
  50   long r = internal_compare (al, ah, bl, bh);
  51   if (r == 2)
  52     return -1;
  53   else
  54     return r <= 0;
  55 }
  56
  57 long
  58 _OtsGtrX (long al, long ah, long bl, long bh)
  59 {
  60   long r = internal_compare (al, ah, bl, bh);
  61   if (r == 2)
  62     return -1;
  63   else
  64     return r > 0;
  65 }
  66
  67 long
  68 _OtsGeqX (long al, long ah, long bl, long bh)
  69 {
  70   long r = internal_compare (al, ah, bl, bh);
  71   if (r == 2)
  72     return -1;
  73   else
  74     return r >= 0;
  75 }