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5fbef188 | 1 | /* FPU control word definitions. Stub version. |
b168057a | 2 | Copyright (C) 1996-2015 Free Software Foundation, Inc. |
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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 | |
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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. | |
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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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
478b92f0 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
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16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
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18 | |
19 | #ifndef _FPU_CONTROL_H | |
20 | #define _FPU_CONTROL_H | |
21 | ||
3f62b69a | 22 | #define _FPU_RESERVED 0xffffffff /* These bits are reserved and not changed. */ |
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23 | |
24 | /* The fdlibm code requires no interrupts for exceptions. Don't | |
25 | change the rounding mode, it would break long double I/O! */ | |
26 | #define _FPU_DEFAULT 0x00000000 /* Default value. */ | |
27 | ||
28 | /* Type of the control word. */ | |
3f62b69a | 29 | typedef unsigned int fpu_control_t; |
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30 | |
31 | /* Macros for accessing the hardware control word. */ | |
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32 | #define _FPU_GETCW(cw) (cw) = 0 |
33 | #define _FPU_SETCW(cw) (void) (cw) | |
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34 | |
35 | /* Default control word set at startup. */ | |
36 | extern fpu_control_t __fpu_control; | |
37 | ||
ec4b0518 | 38 | #endif /* _FPU_CONTROL_H */ |