]>
Commit | Line | Data |
---|---|---|
9d5a6349 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
1da177e4 LT |
2 | /* IEEE754 floating point arithmetic |
3 | * single precision | |
4 | */ | |
5 | /* | |
6 | * MIPS floating point support | |
7 | * Copyright (C) 1994-2000 Algorithmics Ltd. | |
1da177e4 LT |
8 | */ |
9 | ||
1da177e4 LT |
10 | #include "ieee754sp.h" |
11 | ||
2209bcb1 | 12 | int ieee754sp_cmp(union ieee754sp x, union ieee754sp y, int cmp, int sig) |
1da177e4 | 13 | { |
3f7cac41 RB |
14 | int vx; |
15 | int vy; | |
16 | ||
1da177e4 LT |
17 | COMPXSP; |
18 | COMPYSP; | |
19 | ||
20 | EXPLODEXSP; | |
21 | EXPLODEYSP; | |
22 | FLUSHXSP; | |
23 | FLUSHYSP; | |
9e8bad1f | 24 | ieee754_clearcx(); /* Even clear inexact flag here */ |
1da177e4 | 25 | |
c9a10845 | 26 | if (ieee754_class_nan(xc) || ieee754_class_nan(yc)) { |
b844bc78 MR |
27 | if (sig || |
28 | xc == IEEE754_CLASS_SNAN || yc == IEEE754_CLASS_SNAN) | |
9e8bad1f | 29 | ieee754_setcx(IEEE754_INVALID_OPERATION); |
bd267a53 | 30 | return (cmp & IEEE754_CUN) != 0; |
1da177e4 | 31 | } else { |
3f7cac41 RB |
32 | vx = x.bits; |
33 | vy = y.bits; | |
1da177e4 LT |
34 | |
35 | if (vx < 0) | |
36 | vx = -vx ^ SP_SIGN_BIT; | |
37 | if (vy < 0) | |
38 | vy = -vy ^ SP_SIGN_BIT; | |
39 | ||
40 | if (vx < vy) | |
41 | return (cmp & IEEE754_CLT) != 0; | |
42 | else if (vx == vy) | |
43 | return (cmp & IEEE754_CEQ) != 0; | |
44 | else | |
45 | return (cmp & IEEE754_CGT) != 0; | |
46 | } | |
47 | } |