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/* GPL, etc -- based loosely on mathinline.h */
#ifndef RTAPI_MATH_I386_H
#define RTAPI_MATH_I386_H
#define MATHOP(f,i) extern __inline double f(double __x) { \
register double __result; \
__asm __volatile__ (i : "=t" (__result) : "0" (__x)); \
return __result; \
}
MATHOP(sin, "fsin")
MATHOP(cos, "fcos")
MATHOP(fabs, "fabs")
MATHOP(sqrt, "fsqrt")
extern __inline double tan (double __x) {
register long double __value;
register long double __value2 __attribute__ ((__unused__));
__asm __volatile__ ("fptan" : "=t" (__value2), "=u" (__value) : "0" (__x));
return __value;
}
extern __inline double atan2 (double __y, double __x) {
register long double __value;
__asm __volatile__ ("fpatan" : "=t" (__value) : "0" (__x), "u" (__y) : "st(1)");
return __value;
}
extern __inline double atan (double __y) {
return atan2(__y, 1.);
}
extern __inline double asin (double __x) {
return atan2(__x, sqrt (1.0 - __x * __x));
}
extern __inline double acos (double __x) {
return atan2(sqrt(1.0 - __x * __x), __x);
}
extern __inline double fmax(double __y, double __x) {
return __y > __x ? __y : __x;
}
extern __inline double fmin(double __y, double __x) {
return __y < __x ? __y : __x;
}
#endif /* RTAPI_MATH_I386_H */
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