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Diffstat (limited to 'sysdeps/m68k/fpu/__math.h')
-rw-r--r--sysdeps/m68k/fpu/__math.h118
1 files changed, 101 insertions, 17 deletions
diff --git a/sysdeps/m68k/fpu/__math.h b/sysdeps/m68k/fpu/__math.h
index a9ae2d966c..e357364fb7 100644
--- a/sysdeps/m68k/fpu/__math.h
+++ b/sysdeps/m68k/fpu/__math.h
@@ -19,6 +19,8 @@ Cambridge, MA 02139, USA. */
#ifdef __GNUC__
#include <sys/cdefs.h>
+#define __need_Emath
+#include <errno.h>
#ifdef __NO_MATH_INLINES
/* This is used when defining the functions themselves. Define them with
@@ -28,12 +30,14 @@ Cambridge, MA 02139, USA. */
#define __m81_inline static __inline
#else
#define __m81_u(x) x
-#define __m81_inline exter __inline
+#define __m81_inline extern __inline
#define __MATH_INLINES 1
#endif
#define __inline_mathop2(func, op) \
- __m81_inline __CONSTVALUE double \
+ __m81_inline double \
+ __m81_u(func)(double __mathop_x) __attribute__((__const__)); \
+ __m81_inline double \
__m81_u(func)(double __mathop_x) \
{ \
double __result; \
@@ -55,20 +59,23 @@ __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
+#ifndef __NO_MATH_INLINES
__inline_mathop2(rint, int)
__inline_mathop2(expm1, etoxm1)
+#endif
__inline_mathop2(log1p, lognp1)
__inline_mathop(atanh)
#endif
-__m81_inline __CONSTVALUE double
+__m81_inline double
+__m81_u(__drem)(double __x, double __y) __attribute__ ((__const__));
+__m81_inline double
__m81_u(__drem)(double __x, double __y)
{
double __result;
@@ -76,7 +83,9 @@ __m81_u(__drem)(double __x, double __y)
return __result;
}
-__m81_inline __CONSTVALUE double
+__m81_inline double
+__m81_u(ldexp)(double __x, int __e) __attribute__ ((__const__));
+__m81_inline double
__m81_u(ldexp)(double __x, int __e)
{
double __result;
@@ -85,7 +94,9 @@ __m81_u(ldexp)(double __x, int __e)
return __result;
}
-__m81_inline __CONSTVALUE double
+__m81_inline double
+__m81_u(fmod)(double __x, double __y) __attribute__ ((__const__));
+__m81_inline double
__m81_u(fmod)(double __x, double __y)
{
double __result;
@@ -103,11 +114,39 @@ __m81_u(frexp)(double __value, int *__expptr)
return __mantissa;
}
-__m81_inline __CONSTVALUE double
+__m81_inline double
+__m81_u(floor)(double __x) __attribute__ ((__const__));
+__m81_inline double
+__m81_u(floor)(double __x)
+{
+ double __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_inline double
+__m81_u(pow)(double __x, double __y) __attribute__ ((__const__));
+__m81_inline double
__m81_u(pow)(double __x, double __y)
{
double __result;
- if (__y == 0.0 || __x == 1.0)
+ if (__x == 0.0)
+ {
+ if (__y <= 0.0)
+ __result = __infnan (EDOM);
+ else
+ __result = 0.0;
+ }
+ else if (__y == 0.0 || __x == 1.0)
__result = 1.0;
else if (__y == 1.0)
__result = __x;
@@ -117,23 +156,40 @@ __m81_u(pow)(double __x, double __y)
__asm("ftentox%.x %1, %0" : "=f" (__result) : "f" (__y));
else if (__x == 2.0)
__asm("ftwotox%.x %1, %0" : "=f" (__result) : "f" (__y));
+ else if (__x < 0.0)
+ {
+ double __temp = __m81_u (__rint) (__y);
+ if (__y == __temp)
+ {
+ int i = (int) __y;
+ __result = __m81_u (exp) (__y * __m81_u (log) (-__x));
+ if (i & 1)
+ __result = -__result;
+ }
+ else
+ __result = __infnan (EDOM);
+ }
else
__result = __m81_u(exp)(__y * __m81_u(log)(__x));
return __result;
}
-__m81_inline __CONSTVALUE double
+__m81_inline double
+__m81_u(ceil)(double __x) __attribute__ ((__const__));
+__m81_inline double
__m81_u(ceil)(double __x)
{
double __result;
unsigned long int __ctrl_reg;
- __asm("fmove%.l fpcr, %0" : "=g" (__ctrl_reg));
+ __asm __volatile__ ("fmove%.l %!, %0" : "=dm" (__ctrl_reg));
/* Set rounding towards positive infinity. */
- __asm("fmove%.l %0, fpcr" : /* No outputs. */ : "g" (__ctrl_reg | 0x30));
+ __asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */
+ : "dmi" (__ctrl_reg | 0x30));
/* Convert X to an integer, using +Inf rounding. */
- __asm("fint%.x %1, %0" : "=f" (__result) : "f" (__x));
+ __asm __volatile__ ("fint%.x %1, %0" : "=f" (__result) : "f" (__x));
/* Restore the previous rounding mode. */
- __asm("fmove%.l %0, fpcr" : /* No outputs. */ : "g" (__ctrl_reg));
+ __asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */
+ : "dmi" (__ctrl_reg));
return __result;
}
@@ -145,23 +201,51 @@ __m81_u(modf)(double __value, double *__iptr)
return __value - __modf_int;
}
-__m81_inline __CONSTVALUE int
+__m81_inline int
+__m81_u(__isinf)(double __value) __attribute__ ((__const__));
+__m81_inline 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));
+ "fmove%.l %/fpsr, %0" : "=dm" (__fpsr) : "f" (__value));
return (__fpsr & (2 << (3 * 8))) ? (__value < 0 ? -1 : 1) : 0;
}
-__m81_inline __CONSTVALUE int
+__m81_inline int
+__m81_u(__isnan)(double __value) __attribute__ ((__const__));
+__m81_inline int
__m81_u(__isnan)(double __value)
{
char __result;
__asm("ftst%.x %1\n"
- "fsun %0" : "=g" (__result) : "f" (__value));
+ "fsun %0" : "=dm" (__result) : "f" (__value));
+ return __result;
+}
+
+__m81_inline int
+__m81_u(__isinfl)(long double __value) __attribute__ ((__const__));
+__m81_inline int
+__m81_u(__isinfl)(long 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" : "=dm" (__fpsr) : "f" (__value));
+ return (__fpsr & (2 << (3 * 8))) ? (__value < 0 ? -1 : 1) : 0;
+}
+
+__m81_inline int
+__m81_u(__isnanl)(long double __value) __attribute__ ((__const__));
+__m81_inline int
+__m81_u(__isnanl)(long double __value)
+{
+ char __result;
+ __asm("ftst%.x %1\n"
+ "fsun %0" : "=dm" (__result) : "f" (__value));
return __result;
}
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