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+/* Definitions of inline math functions implemented by the m68881/2.
+ Copyright (C) 1991,92,93,94,96,97,98,99,2000,2002, 2003, 2004, 2008, 2010, 2012
+ 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 Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _MATH_H
+# error "Never use <bits/mathinline.h> directly; include <math.h> instead."
+#endif
+
+#ifndef __extern_inline
+# define __MATH_INLINE __inline
+#else
+# define __MATH_INLINE __extern_inline
+#endif
+
+#ifdef __GNUC__
+
+#ifdef __USE_ISOC99
+/* GCC 3.1 and up have builtins that actually can be used. */
+# if !__GNUC_PREREQ (3,1)
+/* ISO C99 defines some macros to perform unordered comparisons. The
+ m68k FPU supports this with special opcodes and we should use them.
+ These must not be inline functions since we have to be able to handle
+ all floating-point types. */
+# undef isgreater
+# undef isgreaterequal
+# undef isless
+# undef islessequal
+# undef islessgreater
+# undef isunordered
+# define isgreater(x, y) \
+ __extension__ \
+ ({ char __result; \
+ __asm__ ("fcmp%.x %2,%1; fsogt %0" \
+ : "=dm" (__result) : "f" (x), "f" (y)); \
+ __result != 0; })
+
+# define isgreaterequal(x, y) \
+ __extension__ \
+ ({ char __result; \
+ __asm__ ("fcmp%.x %2,%1; fsoge %0" \
+ : "=dm" (__result) : "f" (x), "f" (y)); \
+ __result != 0; })
+
+# define isless(x, y) \
+ __extension__ \
+ ({ char __result; \
+ __asm__ ("fcmp%.x %2,%1; fsolt %0" \
+ : "=dm" (__result) : "f" (x), "f" (y)); \
+ __result != 0; })
+
+# define islessequal(x, y) \
+ __extension__ \
+ ({ char __result; \
+ __asm__ ("fcmp%.x %2,%1; fsole %0" \
+ : "=dm" (__result) : "f" (x), "f" (y)); \
+ __result != 0; })
+
+# define islessgreater(x, y) \
+ __extension__ \
+ ({ char __result; \
+ __asm__ ("fcmp%.x %2,%1; fsogl %0" \
+ : "=dm" (__result) : "f" (x), "f" (y)); \
+ __result != 0; })
+
+# define isunordered(x, y) \
+ __extension__ \
+ ({ char __result; \
+ __asm__ ("fcmp%.x %2,%1; fsun %0" \
+ : "=dm" (__result) : "f" (x), "f" (y)); \
+ __result != 0; })
+# endif /* GCC 3.1 */
+
+/* Test for negative number. Used in the signbit() macro. */
+__MATH_INLINE int
+__NTH (__signbitf (float __x))
+{
+ __extension__ union { float __f; int __i; } __u = { __f: __x };
+ return __u.__i < 0;
+}
+__MATH_INLINE int
+__NTH (__signbit (double __x))
+{
+ __extension__ union { double __d; int __i[2]; } __u = { __d: __x };
+ return __u.__i[0] < 0;
+}
+__MATH_INLINE int
+__NTH (__signbitl (long double __x))
+{
+ __extension__ union { long double __d; int __i[3]; } __u = { __d: __x };
+ return __u.__i[0] < 0;
+}
+#endif
+
+
+#if (!defined __NO_MATH_INLINES && defined __OPTIMIZE__) \
+ || defined __LIBC_INTERNAL_MATH_INLINES
+
+#ifdef __LIBC_INTERNAL_MATH_INLINES
+/* This is used when defining the functions themselves. Define them with
+ __ names, and with `static inline' instead of `extern inline' so the
+ bodies will always be used, never an external function call. */
+# define __m81_u(x) __CONCAT(__,x)
+# define __m81_inline static __inline
+#else
+# define __m81_u(x) x
+# define __m81_inline __MATH_INLINE
+# define __M81_MATH_INLINES 1
+#endif
+
+/* Define a const math function. */
+#define __m81_defun(rettype, func, args) \
+ __m81_inline rettype __attribute__((__const__)) \
+ __NTH (__m81_u(func) args)
+
+/* Define the three variants of a math function that has a direct
+ implementation in the m68k fpu. FUNC is the name for C (which will be
+ suffixed with f and l for the float and long double version, resp). OP
+ is the name of the fpu operation (without leading f). */
+
+#if defined __USE_MISC || defined __USE_ISOC99
+# define __inline_mathop(func, op) \
+ __inline_mathop1(double, func, op) \
+ __inline_mathop1(float, __CONCAT(func,f), op) \
+ __inline_mathop1(long double, __CONCAT(func,l), op)
+#else
+# define __inline_mathop(func, op) \
+ __inline_mathop1(double, func, op)
+#endif
+
+#define __inline_mathop1(float_type,func, op) \
+ __m81_defun (float_type, func, (float_type __mathop_x)) \
+ { \
+ float_type __result; \
+ __asm __volatile__ ("f" __STRING(op) "%.x %1, %0" \
+ : "=f" (__result) : "f" (__mathop_x)); \
+ return __result; \
+ }
+
+__inline_mathop(__atan, atan)
+__inline_mathop(__cos, cos)
+__inline_mathop(__sin, sin)
+__inline_mathop(__tan, tan)
+__inline_mathop(__tanh, tanh)
+__inline_mathop(__fabs, abs)
+
+#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
+__inline_mathop(__rint, int)
+__inline_mathop(__expm1, etoxm1)
+__inline_mathop(__log1p, lognp1)
+#endif
+
+#ifdef __USE_MISC
+__inline_mathop(__significand, getman)
+#endif
+
+#ifdef __USE_ISOC99
+__inline_mathop(__trunc, intrz)
+#endif
+
+#if !defined __NO_MATH_INLINES && defined __OPTIMIZE__
+
+__inline_mathop(atan, atan)
+__inline_mathop(tanh, tanh)
+
+# if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
+__inline_mathop(rint, int)
+__inline_mathop(log1p, lognp1)
+# endif
+
+# ifdef __USE_MISC
+__inline_mathop(significand, getman)
+# endif
+
+# ifdef __USE_ISOC99
+__inline_mathop(trunc, intrz)
+# endif
+
+#endif /* !__NO_MATH_INLINES && __OPTIMIZE__ */
+
+/* This macro contains the definition for the rest of the inline
+ functions, using FLOAT_TYPE as the domain type and S as the suffix
+ for the function names. */
+
+#define __inline_functions(float_type, s) \
+__m81_defun (float_type, __CONCAT(__floor,s), (float_type __x)) \
+{ \
+ float_type __result; \
+ unsigned long int __ctrl_reg; \
+ __asm __volatile__ ("fmove%.l %!, %0" : "=dm" (__ctrl_reg)); \
+ /* Set rounding towards negative infinity. */ \
+ __asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */ \
+ : "dmi" ((__ctrl_reg & ~0x10) | 0x20)); \
+ /* Convert X to an integer, using -Inf rounding. */ \
+ __asm __volatile__ ("fint%.x %1, %0" : "=f" (__result) : "f" (__x)); \
+ /* Restore the previous rounding mode. */ \
+ __asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */ \
+ : "dmi" (__ctrl_reg)); \
+ return __result; \
+} \
+ \
+__m81_defun (float_type, __CONCAT(__ceil,s), (float_type __x)) \
+{ \
+ float_type __result; \
+ unsigned long int __ctrl_reg; \
+ __asm __volatile__ ("fmove%.l %!, %0" : "=dm" (__ctrl_reg)); \
+ /* Set rounding towards positive infinity. */ \
+ __asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */ \
+ : "dmi" (__ctrl_reg | 0x30)); \
+ /* Convert X to an integer, using +Inf rounding. */ \
+ __asm __volatile__ ("fint%.x %1, %0" : "=f" (__result) : "f" (__x)); \
+ /* Restore the previous rounding mode. */ \
+ __asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */ \
+ : "dmi" (__ctrl_reg)); \
+ return __result; \
+}
+
+__inline_functions(double,)
+#if defined __USE_MISC || defined __USE_ISOC99
+__inline_functions(float,f)
+__inline_functions(long double,l)
+#endif
+#undef __inline_functions
+
+#ifdef __USE_MISC
+
+# define __inline_functions(float_type, s) \
+__m81_defun (int, __CONCAT(__isinf,s), (float_type __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" : "=dm" (__fpsr) : "f" (__value)); \
+ return (__fpsr & (2 << 24)) ? (__fpsr & (8 << 24) ? -1 : 1) : 0; \
+} \
+ \
+__m81_defun (int, __CONCAT(__finite,s), (float_type __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" : "=dm" (__fpsr) : "f" (__value)); \
+ return (__fpsr & (3 << 24)) == 0; \
+} \
+ \
+__m81_defun (float_type, __CONCAT(__scalbn,s), \
+ (float_type __x, int __n)) \
+{ \
+ float_type __result; \
+ __asm __volatile__ ("fscale%.l %1, %0" : "=f" (__result) \
+ : "dmi" (__n), "0" (__x)); \
+ return __result; \
+}
+
+__inline_functions(double,)
+__inline_functions(float,f)
+__inline_functions(long double,l)
+# undef __inline_functions
+
+#endif /* Use misc. */
+
+#if defined __USE_MISC || defined __USE_XOPEN
+
+# define __inline_functions(float_type, s) \
+__m81_defun (int, __CONCAT(__isnan,s), (float_type __value)) \
+{ \
+ char __result; \
+ __asm ("ftst%.x %1\n" \
+ "fsun %0" : "=dm" (__result) : "f" (__value)); \
+ return __result; \
+}
+
+__inline_functions(double,)
+# ifdef __USE_MISC
+__inline_functions(float,f)
+__inline_functions(long double,l)
+# endif
+# undef __inline_functions
+
+#endif
+
+#ifdef __USE_ISOC99
+
+# define __inline_functions(float_type, s) \
+__m81_defun (float_type, __CONCAT(__scalbln,s), \
+ (float_type __x, long int __n)) \
+{ \
+ return __CONCAT(__scalbn,s) (__x, __n); \
+} \
+ \
+__m81_defun (float_type, __CONCAT(__nearbyint,s), (float_type __x)) \
+{ \
+ float_type __result; \
+ unsigned long int __ctrl_reg; \
+ __asm __volatile__ ("fmove%.l %!, %0" : "=dm" (__ctrl_reg)); \
+ /* Temporarily disable the inexact exception. */ \
+ __asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */ \
+ : "dmi" (__ctrl_reg & ~0x200)); \
+ __asm __volatile__ ("fint%.x %1, %0" : "=f" (__result) : "f" (__x)); \
+ __asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */ \
+ : "dmi" (__ctrl_reg)); \
+ return __result; \
+} \
+ \
+__m81_defun (long int, __CONCAT(__lrint,s), (float_type __x)) \
+{ \
+ long int __result; \
+ __asm __volatile__ ("fmove%.l %1, %0" : "=dm" (__result) : "f" (__x)); \
+ return __result; \
+}
+
+__inline_functions (double,)
+__inline_functions (float,f)
+__inline_functions (long double,l)
+# undef __inline_functions
+
+#endif /* Use ISO C9x */
+
+#ifdef __USE_GNU
+
+# define __inline_functions(float_type, s) \
+__m81_inline void \
+__NTH (__m81_u(__CONCAT(__sincos,s))(float_type __x, float_type *__sinx, \
+ float_type *__cosx)) \
+{ \
+ __asm __volatile__ ("fsincos%.x %2,%1:%0" \
+ : "=f" (*__sinx), "=f" (*__cosx) : "f" (__x)); \
+}
+
+__inline_functions (double,)
+__inline_functions (float,f)
+__inline_functions (long double,l)
+# undef __inline_functions
+
+#endif
+
+#if !defined __NO_MATH_INLINES && defined __OPTIMIZE__
+
+/* Define inline versions of the user visible functions. */
+
+/* Note that there must be no whitespace before the argument passed for
+ NAME, to make token pasting work correctly with -traditional. */
+# define __inline_forward_c(rettype, name, args1, args2) \
+__MATH_INLINE rettype __attribute__((__const__)) \
+__NTH (name args1) \
+{ \
+ return __CONCAT(__,name) args2; \
+}
+
+# define __inline_forward(rettype, name, args1, args2) \
+__MATH_INLINE rettype __NTH (name args1) \
+{ \
+ return __CONCAT(__,name) args2; \
+}
+
+__inline_forward_c(double,floor, (double __x), (__x))
+__inline_forward_c(double,ceil, (double __x), (__x))
+# ifdef __USE_MISC
+# ifndef __USE_ISOC99 /* Conflict with macro of same name. */
+__inline_forward_c(int,isinf, (double __value), (__value))
+# endif
+__inline_forward_c(int,finite, (double __value), (__value))
+__inline_forward_c(double,scalbn, (double __x, int __n), (__x, __n))
+# endif
+# if defined __USE_MISC || defined __USE_XOPEN
+# ifndef __USE_ISOC99 /* Conflict with macro of same name. */
+__inline_forward_c(int,isnan, (double __value), (__value))
+# endif
+# endif
+# ifdef __USE_ISOC99
+__inline_forward_c(double,scalbln, (double __x, long int __n), (__x, __n))
+__inline_forward_c(double,nearbyint, (double __value), (__value))
+__inline_forward_c(long int,lrint, (double __value), (__value))
+# endif
+# ifdef __USE_GNU
+__inline_forward(void,sincos, (double __x, double *__sinx, double *__cosx),
+ (__x, __sinx, __cosx))
+# endif
+
+# if defined __USE_MISC || defined __USE_ISOC99
+
+__inline_forward_c(float,floorf, (float __x), (__x))
+__inline_forward_c(float,ceilf, (float __x), (__x))
+# ifdef __USE_MISC
+__inline_forward_c(int,isinff, (float __value), (__value))
+__inline_forward_c(int,finitef, (float __value), (__value))
+__inline_forward_c(float,scalbnf, (float __x, int __n), (__x, __n))
+__inline_forward_c(int,isnanf, (float __value), (__value))
+# endif
+# ifdef __USE_ISOC99
+__inline_forward_c(float,scalblnf, (float __x, long int __n), (__x, __n))
+__inline_forward_c(float,nearbyintf, (float __value), (__value))
+__inline_forward_c(long int,lrintf, (float __value), (__value))
+# endif
+# ifdef __USE_GNU
+__inline_forward(void,sincosf, (float __x, float *__sinx, float *__cosx),
+ (__x, __sinx, __cosx))
+# endif
+
+__inline_forward_c(long double,floorl, (long double __x), (__x))
+__inline_forward_c(long double,ceill, (long double __x), (__x))
+# ifdef __USE_MISC
+__inline_forward_c(int,isinfl, (long double __value), (__value))
+__inline_forward_c(int,finitel, (long double __value), (__value))
+__inline_forward_c(long double,scalbnl, (long double __x, int __n), (__x, __n))
+__inline_forward_c(int,isnanl, (long double __value), (__value))
+# endif
+# ifdef __USE_ISOC99
+__inline_forward_c(long double,scalblnl, (long double __x, long int __n),
+ (__x, __n))
+__inline_forward_c(long double,nearbyintl, (long double __value), (__value))
+__inline_forward_c(long int,lrintl, (long double __value), (__value))
+# endif
+# ifdef __USE_GNU
+__inline_forward(void,sincosl,
+ (long double __x, long double *__sinx, long double *__cosx),
+ (__x, __sinx, __cosx))
+# endif
+
+#endif /* Use misc or ISO C99 */
+
+#undef __inline_forward
+#undef __inline_forward_c
+
+#endif /* !__NO_MATH_INLINES && __OPTIMIZE__ */
+
+#endif
+#endif /* GCC. */
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