1 | /* Software floating-point emulation. |
2 | Return 1 if (*a) != (*b) |
3 | Copyright (C) 1997-2024 Free Software Foundation, Inc. |
4 | This file is part of the GNU C Library. |
5 | |
6 | The GNU C Library is free software; you can redistribute it and/or |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either |
9 | version 2.1 of the License, or (at your option) any later version. |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | Lesser General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, see |
18 | <https://www.gnu.org/licenses/>. */ |
19 | |
20 | #include "soft-fp.h" |
21 | #include "quad.h" |
22 | |
23 | int _Qp_fne(const long double *a, const long double *b) |
24 | { |
25 | FP_DECL_EX; |
26 | FP_DECL_Q(A); FP_DECL_Q(B); |
27 | int r; |
28 | |
29 | FP_INIT_ROUNDMODE; |
30 | FP_UNPACK_RAW_QP(A, a); |
31 | FP_UNPACK_RAW_QP(B, b); |
32 | FP_CMP_EQ_Q(r, A, B, 1); |
33 | |
34 | QP_HANDLE_EXCEPTIONS( |
35 | __asm ( |
36 | " ldd [%0], %%f52\n" |
37 | " ldd [%0+8], %%f54\n" |
38 | " ldd [%1], %%f56\n" |
39 | " ldd [%1+8], %%f58\n" |
40 | " fcmpq %%fcc3, %%f52, %%f56\n" |
41 | " " : : "r" (a), "r" (b) : QP_CLOBBER_CC); |
42 | _FPU_GETCW(_fcw); |
43 | r = ((_fcw >> 36) & 3) != 0); |
44 | |
45 | |
46 | return r; |
47 | } |
48 | |