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Tue Jun 4 22:03:02 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/m68k/fpu/__math.h: Define long double versions of the inline functions.
This commit is contained in:
Roland McGrath
parent
2dd2ea9e48
commit
7c2f9239ec
@ -54,6 +54,14 @@ Cambridge, MA 02139, USA. */
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__asm("f" __STRING(op) "%.x %1, %0" : "=f" (__result) : "f" (__mathop_x));\
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return __result; \
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}
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#define __inline_mathopl(func, op) \
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__m81_defun (long double, func, (long double __mathop_x)) \
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{ \
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long double __result; \
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__asm("f" __STRING(op) "%.x %1, %0" : "=f" (__result) : "f" (__mathop_x));\
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return __result; \
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}
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/* ieee style elementary functions */
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__inline_mathop(__ieee754_acos, acos)
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@ -77,6 +85,17 @@ __inline_mathopf(__ieee754_logf, logn)
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__inline_mathopf(__ieee754_sqrtf, sqrt)
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__inline_mathopf(__ieee754_atanhf, atan)
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/* ieee style elementary long double functions */
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__inline_mathopl(__ieee754_acosl, acos)
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__inline_mathopl(__ieee754_asinl, asin)
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__inline_mathopl(__ieee754_coshl, cosh)
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__inline_mathopl(__ieee754_sinhl, sinh)
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__inline_mathopl(__ieee754_expl, etox)
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__inline_mathopl(__ieee754_log10l, log10)
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__inline_mathopl(__ieee754_logl, logn)
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__inline_mathopl(__ieee754_sqrtl, sqrt)
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__inline_mathopl(__ieee754_atanhl, atan)
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__inline_mathop(__atan, atan)
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__inline_mathop(__cos, cos)
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__inline_mathop(__sin, sin)
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@ -105,6 +124,20 @@ __inline_mathopf(__log1pf, lognp1)
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__inline_mathopf(__logbf, log2)
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__inline_mathopf(__significandf, getman)
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__inline_mathopl(__atanl, atan)
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__inline_mathopl(__cosl, cos)
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__inline_mathopl(__sinl, sin)
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__inline_mathopl(__tanl, tan)
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__inline_mathopl(__tanhl, tanh)
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__inline_mathopl(__fabsl, abs)
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__inline_mathopl(__sqrtl, sqrt)
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__inline_mathopl(__rintl, int)
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__inline_mathopl(__expm1l, etoxm1)
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__inline_mathopl(__log1pl, lognp1)
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__inline_mathopl(__logbl, log2)
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__inline_mathopl(__significandl, getman)
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__m81_defun (double, __ieee754_remainder, (double __x, double __y))
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{
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double __result;
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@ -427,6 +460,119 @@ __m81_defun (float, __scalbnf, (float __x, int __n))
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return __result;
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}
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__m81_defun (long double, __ieee754_remainderl, (long double __x,
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long double __y))
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{
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long double __result;
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__asm ("frem%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
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return __result;
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}
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__m81_defun (long double, __ldexpl, (long double __x, int __e))
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{
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long double __result;
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long double __float_e = (long double) __e;
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__asm ("fscale%.x %1, %0" : "=f" (__result) : "f" (__float_e), "0" (__x));
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return __result;
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}
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__m81_defun (long double, __ieee754_fmodl, (long double __x, long double __y))
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{
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long double __result;
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__asm("fmod%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
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return __result;
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}
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__m81_inline long double
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__m81_u(__frexpl)(long double __value, int *__expptr)
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{
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long double __mantissa, __exponent;
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__asm("fgetexp%.x %1, %0" : "=f" (__exponent) : "f" (__value));
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__asm("fgetman%.x %1, %0" : "=f" (__mantissa) : "f" (__value));
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*__expptr = (int) __exponent;
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return __mantissa;
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}
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__m81_defun (long double, __floorl, (long double __x))
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{
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long double __result;
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unsigned long int __ctrl_reg;
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__asm __volatile__ ("fmove%.l %!, %0" : "=dm" (__ctrl_reg));
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/* Set rounding towards negative infinity. */
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__asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */
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: "dmi" ((__ctrl_reg & ~0x10) | 0x20));
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/* Convert X to an integer, using -Inf rounding. */
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__asm __volatile__ ("fint%.x %1, %0" : "=f" (__result) : "f" (__x));
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/* Restore the previous rounding mode. */
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__asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */
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: "dmi" (__ctrl_reg));
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return __result;
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}
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__m81_defun (long double, __ieee754_powl, (long double __x, long double __y))
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{
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long double __result;
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if (__x == 0.0l)
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{
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if (__y <= 0.0l)
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__result = 0.0l / 0.0l;
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else
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__result = 0.0l;
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}
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else if (__y == 0.0l || __x == 1.0l)
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__result = 1.0;
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else if (__y == 1.0l)
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__result = __x;
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else if (__y == 2.0l)
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__result = __x * __x;
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else if (__x == 10.0l)
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__asm("ftentox%.x %1, %0" : "=f" (__result) : "f" (__y));
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else if (__x == 2.0l)
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__asm("ftwotox%.x %1, %0" : "=f" (__result) : "f" (__y));
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else if (__x < 0.0l)
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{
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long double __temp = __m81_u(__rintl)(__y);
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if (__y == __temp)
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{
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int i = (int) __y;
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__result
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= __m81_u(__ieee754_expl)(__y * __m81_u(__ieee754_logl)(-__x));
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if (i & 1)
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__result = -__result;
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}
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else
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__result = 0.0l / 0.0l;
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}
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else
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__result = __m81_u(__ieee754_expl)(__y * __m81_u(__ieee754_logl)(__x));
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return __result;
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}
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__m81_defun (long double, __ceill, (long double __x))
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{
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long double __result;
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unsigned long int __ctrl_reg;
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__asm __volatile__ ("fmove%.l %!, %0" : "=dm" (__ctrl_reg));
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/* Set rounding towards positive infinity. */
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__asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */
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: "dmi" (__ctrl_reg | 0x30));
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/* Convert X to an integer, using +Inf rounding. */
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__asm __volatile__ ("fint%.x %1, %0" : "=f" (__result) : "f" (__x));
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/* Restore the previous rounding mode. */
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__asm __volatile__ ("fmove%.l %0, %!" : /* No outputs. */
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: "dmi" (__ctrl_reg));
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return __result;
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}
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__m81_inline long double
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__m81_u(__modfl)(long double __value, long double *__iptr)
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{
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long double __modf_int;
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__asm ("fintrz%.x %1, %0" : "=f" (__modf_int) : "f" (__value));
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*__iptr = __modf_int;
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return __value - __modf_int;
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}
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__m81_defun (int, __isinfl, (long double __value))
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{
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/* There is no branch-condition for infinity,
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@ -445,4 +591,36 @@ __m81_defun (int, __isnanl, (long double __value))
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return __result;
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}
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__m81_defun (int, __finitel, (long double __value))
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{
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/* There is no branch-condition for infinity, so we must extract and
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examine the condition codes manually. */
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unsigned long int __fpsr;
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__asm ("ftst%.x %1\n"
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"fmove%.l %/fpsr, %0" : "=dm" (__fpsr) : "f" (__value));
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return (__fpsr & (3 << 24)) == 0;
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}
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__m81_defun (int, __ilogbl, (long double __x))
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{
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long double __result;
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__asm("fgetexp%.x %1, %0" : "=f" (__result) : "f" (__x));
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return (int) __result;
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}
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__m81_defun (long double, __ieee754_scalbl, (long double __x, long double __n))
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{
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long double __result;
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__asm ("fscale%.x %1, %0" : "=f" (__result) : "f" (__n), "0" (__x));
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return __result;
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}
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__m81_defun (long double, __scalbnl, (long double __x, int __n))
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{
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long double __result;
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long double __float_n = (long double) __n;
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__asm ("fscale%.x %1, %0" : "=f" (__result) : "f" (__float_n), "0" (__x));
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return __result;
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}
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#endif /* GCC. */
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