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 | } |
76 | |