projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 5da9d124 AS |
1 | /* Definitions of libc internal inline math functions implemented |
| 2 | by the m68881/2. | |
| 04277e02 | 3 | Copyright (C) 1991-2019 Free Software Foundation, Inc. |
| 5da9d124 AS |
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 | |
| 3214b89b AJ |
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. | |
| 5da9d124 AS |
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 | |
| 3214b89b | 14 | Lesser General Public License for more details. |
| 5da9d124 | 15 | |
| 3214b89b | 16 | You should have received a copy of the GNU Lesser General Public |
| ab84e3ff PE |
17 | License along with the GNU C Library. If not, see |
| 18 | <http://www.gnu.org/licenses/>. */ | |
| 5da9d124 AS |
19 | |
| 20 | /* This file contains the definitions of the inline math functions that | |
| 21 | are only used internally inside libm, not visible to the user. */ | |
| 22 | ||
| 66425185 JM |
23 | __inline_mathop (__ieee754_acos, acos,) |
| 24 | __inline_mathop (__ieee754_asin, asin,) | |
| 25 | __inline_mathop (__ieee754_cosh, cosh,) | |
| 26 | __inline_mathop (__ieee754_sinh, sinh,) | |
| 27 | __inline_mathop (__ieee754_exp, etox,) | |
| 28 | __inline_mathop (__ieee754_exp2, twotox,) | |
| 29 | __inline_mathop (__ieee754_exp10, tentox,) | |
| 30 | __inline_mathop (__ieee754_log10, log10,) | |
| 31 | __inline_mathop (__ieee754_log2, log2,) | |
| 32 | __inline_mathop (__ieee754_log, logn,) | |
| 22679b2c | 33 | __inline_mathop (__ieee754_sqrt, sqrt,) |
| 66425185 | 34 | __inline_mathop (__ieee754_atanh, atanh,) |
| 5da9d124 | 35 | |
| 66425185 | 36 | __m81_defun (double, __ieee754_remainder, (double __x, double __y),) |
| 5da9d124 AS |
37 | { |
| 38 | double __result; | |
| 39 | __asm ("frem%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x)); | |
| 40 | return __result; | |
| 41 | } | |
| 42 | ||
| 66425185 | 43 | __m81_defun (float, __ieee754_remainderf, (float __x, float __y),) |
| 5da9d124 AS |
44 | { |
| 45 | float __result; | |
| 46 | __asm ("frem%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x)); | |
| 47 | return __result; | |
| 48 | } | |
| 49 | ||
| 50 | __m81_defun (long double, | |
| 66425185 | 51 | __ieee754_remainderl, (long double __x, long double __y),) |
| 5da9d124 AS |
52 | { |
| 53 | long double __result; | |
| 54 | __asm ("frem%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x)); | |
| 55 | return __result; | |
| 56 | } | |
| 57 | ||
| 66425185 | 58 | __m81_defun (double, __ieee754_fmod, (double __x, double __y),) |
| 5da9d124 AS |
59 | { |
| 60 | double __result; | |
| 61 | __asm ("fmod%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x)); | |
| 62 | return __result; | |
| 63 | } | |
| 64 | ||
| 66425185 | 65 | __m81_defun (float, __ieee754_fmodf, (float __x, float __y),) |
| 5da9d124 AS |
66 | { |
| 67 | float __result; | |
| 68 | __asm ("fmod%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x)); | |
| 69 | return __result; | |
| 70 | } | |
| 71 | ||
| 72 | __m81_defun (long double, | |
| 66425185 | 73 | __ieee754_fmodl, (long double __x, long double __y),) |
| 5da9d124 AS |
74 | { |
| 75 | long double __result; | |
| 76 | __asm ("fmod%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x)); | |
| 77 | return __result; | |
| 78 | } | |
| 79 | ||
| 80 | /* Get the m68881 condition codes, to quickly check multiple conditions. */ | |
| 81 | static __inline__ unsigned long | |
| 82 | __m81_test (long double __val) | |
| 83 | { | |
| 84 | unsigned long __fpsr; | |
| 85 | __asm ("ftst%.x %1; fmove%.l %/fpsr,%0" : "=dm" (__fpsr) : "f" (__val)); | |
| 86 | return __fpsr; | |
| 87 | } | |
| 88 | ||
| 89 | /* Bit values returned by __m81_test. */ | |
| 90 | #define __M81_COND_NAN (1 << 24) | |
| 91 | #define __M81_COND_INF (2 << 24) | |
| 92 | #define __M81_COND_ZERO (4 << 24) | |
| 93 | #define __M81_COND_NEG (8 << 24) |