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- /* Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- #ifdef __GNUC__
-
- #include <sys/cdefs.h>
-
- #ifdef __NO_MATH_INLINES
- #define __m81_u(x) __CONCAT(__,x)
- #else
- #define __m81_u(x) x
- #define __MATH_INLINES 1
- #endif
-
- #define __inline_mathop2(func, op) \
- extern __inline __CONSTVALUE double \
- __m81_u(func)(double __mathop_x) \
- { \
- double __result; \
- __asm("f" __STRING(op) "%.x %1, %0" : "=f" (__result) : "f" (__mathop_x));\
- return __result; \
- }
- #define __inline_mathop(op) __inline_mathop2(op, op)
-
- __inline_mathop(acos)
- __inline_mathop(asin)
- __inline_mathop(atan)
- __inline_mathop(cos)
- __inline_mathop(sin)
- __inline_mathop(tan)
- __inline_mathop(cosh)
- __inline_mathop(sinh)
- __inline_mathop(tanh)
- __inline_mathop2(exp, etox)
- __inline_mathop2(fabs, abs)
- __inline_mathop(log10)
- __inline_mathop2(log, logn)
- __inline_mathop2(floor, intrz)
- __inline_mathop(sqrt)
-
- __inline_mathop2(__rint, int)
- __inline_mathop2(__expm1, etoxm1)
-
- #ifdef __USE_MISC
- __inline_mathop2(rint, int)
- __inline_mathop2(expm1, etoxm1)
- __inline_mathop2(log1p, lognp1)
- __inline_mathop(atanh)
- #endif
-
- extern __inline __CONSTVALUE double
- __m81_u(__drem)(double __x, double __y)
- {
- double __result;
- __asm("frem%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
- return __result;
- }
-
- extern __inline __CONSTVALUE double
- __m81_u(ldexp)(double __x, int __e)
- {
- double __result;
- double __double_e = (double) __e;
- __asm("fscale%.x %1, %0" : "=f" (__result) : "f" (__double_e), "0" (__x));
- return __result;
- }
-
- extern __inline __CONSTVALUE double
- __m81_u(fmod)(double __x, double __y)
- {
- double __result;
- __asm("fmod%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
- return __result;
- }
-
- extern __inline double
- __m81_u(frexp)(double __value, int *__expptr)
- {
- double __mantissa, __exponent;
- __asm("fgetexp%.x %1, %0" : "=f" (__exponent) : "f" (__value));
- __asm("fgetman%.x %1, %0" : "=f" (__mantissa) : "f" (__value));
- *__expptr = (int) __exponent;
- return __mantissa;
- }
-
- extern __inline __CONSTVALUE double
- __m81_u(pow)(double __x, double __y)
- {
- double __result;
- if (__y == 0.0 || __x == 1.0)
- __result = 1.0;
- else if (__y == 1.0)
- __result = __x;
- else if (__y == 2.0)
- __result = __x * __x;
- else if (__x == 10.0)
- __asm("ftentox%.x %1, %0" : "=f" (__result) : "f" (__y));
- else if (__x == 2.0)
- __asm("ftwotox%.x %1, %0" : "=f" (__result) : "f" (__y));
- else
- __result = __m81_u(exp)(__y * __m81_u(log)(__x));
- return __result;
- }
-
- extern __inline __CONSTVALUE double
- __m81_u(ceil)(double __x)
- {
- double __result;
- unsigned long int __ctrl_reg;
- __asm("fmove%.l fpcr, %0" : "=g" (__ctrl_reg));
- /* Set rounding towards positive infinity. */
- __asm("fmove%.l %0, fpcr" : /* No outputs. */ : "g" (__ctrl_reg | 0x30));
- /* Convert X to an integer, using +Inf rounding. */
- __asm("fint%.x %1, %0" : "=f" (__result) : "f" (__x));
- /* Restore the previous rounding mode. */
- __asm("fmove%.l %0, fpcr" : /* No outputs. */ : "g" (__ctrl_reg));
- return __result;
- }
-
- extern __inline double
- __m81_u(modf)(double __value, double *__iptr)
- {
- double __modf_int = __m81_u(floor)(__value);
- *__iptr = __modf_int;
- return __value - __modf_int;
- }
-
- extern __inline __CONSTVALUE int
- __m81_u(__isinf)(double __value)
- {
- /* There is no branch-condition for infinity,
- so we must extract and examine the condition codes manually. */
- unsigned long int __fpsr;
- __asm("ftst%.x %1\n"
- "fmove%.l fpsr, %0" : "=g" (__fpsr) : "f" (__value));
- return (__fpsr & (2 << (3 * 8))) ? (__value < 0 ? -1 : 1) : 0;
- }
-
- extern __inline __CONSTVALUE int
- __m81_u(__isnan)(double __value)
- {
- char __result;
- __asm("ftst%.x %1\n"
- "fsun %0" : "=g" (__result) : "f" (__value));
- return __result;
- }
-
- #endif /* GCC. */
-