system/glibc
3
0
Fork 0
Code Issues Projects Releases Wiki Activity

update from main archive 960919

Browse Source
This commit is contained in:
Ulrich Drepper 1996-09-20 01:57:51 +00:00
parent bf4b310762
commit 22a45bf1a8
8 changed files with 274 additions and 592 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

769
sysdeps/m68k/fpu/__math.h
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
/* Copyright (C) 1991, 92, 93, 94, 96 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
@ -39,30 +39,30 @@ Cambridge, MA 02139, USA. */
__m81_inline rettype \
__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). */
#define __inline_mathop(func, op) \
__m81_defun (double, func, (double __mathop_x)) \
{ \
double __result; \
__asm("f" __STRING(op) "%.x %1, %0" : "=f" (__result) : "f" (__mathop_x));\
return __result; \
}
#define __inline_mathopf(func, op) \
__m81_defun (float, func, (float __mathop_x)) \
} \
__m81_defun (float, func##f, (float __mathop_x)) \
{ \
float __result; \
__asm("f" __STRING(op) "%.x %1, %0" : "=f" (__result) : "f" (__mathop_x));\
return __result; \
}
#define __inline_mathopl(func, op) \
__m81_defun (long double, func, (long double __mathop_x)) \
} \
__m81_defun (long double, func##l, (long double __mathop_x)) \
{ \
long double __result; \
__asm("f" __STRING(op) "%.x %1, %0" : "=f" (__result) : "f" (__mathop_x));\
return __result; \
}
/* ieee style elementary functions */
__inline_mathop(__ieee754_acos, acos)
__inline_mathop(__ieee754_asin, asin)
@ -74,28 +74,6 @@ __inline_mathop(__ieee754_log, logn)
__inline_mathop(__ieee754_sqrt, sqrt)
__inline_mathop(__ieee754_atanh, atanh)
/* ieee style elementary float functions */
__inline_mathopf(__ieee754_acosf, acos)
__inline_mathopf(__ieee754_asinf, asin)
__inline_mathopf(__ieee754_coshf, cosh)
__inline_mathopf(__ieee754_sinhf, sinh)
__inline_mathopf(__ieee754_expf, etox)
__inline_mathopf(__ieee754_log10f, log10)
__inline_mathopf(__ieee754_logf, logn)
__inline_mathopf(__ieee754_sqrtf, sqrt)
__inline_mathopf(__ieee754_atanhf, atan)
/* ieee style elementary long double functions */
__inline_mathopl(__ieee754_acosl, acos)
__inline_mathopl(__ieee754_asinl, asin)
__inline_mathopl(__ieee754_coshl, cosh)
__inline_mathopl(__ieee754_sinhl, sinh)
__inline_mathopl(__ieee754_expl, etox)
__inline_mathopl(__ieee754_log10l, log10)
__inline_mathopl(__ieee754_logl, logn)
__inline_mathopl(__ieee754_sqrtl, sqrt)
__inline_mathopl(__ieee754_atanhl, atan)
__inline_mathop(__atan, atan)
__inline_mathop(__cos, cos)
__inline_mathop(__sin, sin)
@ -110,517 +88,226 @@ __inline_mathop(__log1p, lognp1)
__inline_mathop(__logb, log2)
__inline_mathop(__significand, getman)
__inline_mathopf(__atanf, atan)
__inline_mathopf(__cosf, cos)
__inline_mathopf(__sinf, sin)
__inline_mathopf(__tanf, tan)
__inline_mathopf(__tanhf, tanh)
__inline_mathopf(__fabsf, abs)
__inline_mathopf(__sqrtf, sqrt)
/* 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. */
__inline_mathopf(__rintf, int)
__inline_mathopf(__expm1f, etoxm1)
__inline_mathopf(__log1pf, lognp1)
__inline_mathopf(__logbf, log2)
__inline_mathopf(__significandf, getman)
__inline_mathopl(__atanl, atan)
__inline_mathopl(__cosl, cos)
__inline_mathopl(__sinl, sin)
__inline_mathopl(__tanl, tan)
__inline_mathopl(__tanhl, tanh)
__inline_mathopl(__fabsl, abs)
__inline_mathopl(__sqrtl, sqrt)
__inline_mathopl(__rintl, int)
__inline_mathopl(__expm1l, etoxm1)
__inline_mathopl(__log1pl, lognp1)
__inline_mathopl(__logbl, log2)
__inline_mathopl(__significandl, getman)
__m81_defun (double, __ieee754_remainder, (double __x, double __y))
{
double __result;
__asm("frem%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
return __result;
#define __inline_functions(__float_type, __s) \
__m81_defun (__float_type, \
__ieee754_remainder##__s, (__float_type __x, __float_type __y)) \
{ \
__float_type __result; \
__asm("frem%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x)); \
return __result; \
} \
\
__m81_defun (__float_type, \
__ieee754_fmod##__s, (__float_type __x, __float_type __y)) \
{ \
__float_type __result; \
__asm("fmod%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x)); \
return __result; \
} \
\
__m81_defun (__float_type, \
__ieee754_atan2##__s, (__float_type __y, __float_type __x)) \
{ \
__float_type __pi, __pi_2; \
\
__asm ("fmovecr%.x %#0, %0" : "=f" (__pi)); \
__asm ("fscale%.w %#-1, %0" : "=f" (__pi_2) : "0" (__pi)); \
if (__x > 0) \
{ \
if (__y > 0) \
{ \
if (__x > __y) \
return __m81_u(__atan##__s) (__y / __x); \
else \
return __pi_2 - __m81_u(__atan##__s) (__x / __y); \
} \
else \
{ \
if (__x > -__y) \
return __m81_u(__atan##__s) (__y / __x); \
else \
return -__pi_2 - __m81_u(__atan##__s) (__x / __y); \
} \
} \
else \
{ \
if (__y > 0) \
{ \
if (-__x < __y) \
return __pi + __m81_u(__atan##__s) (__y / __x); \
else \
return __pi_2 - __m81_u(__atan##__s) (__x / __y); \
} \
else \
{ \
if (-__x > -__y) \
return -__pi + __m81_u(__atan##__s) (__y / __x); \
else \
return -__pi_2 - __m81_u(__atan##__s) (__x / __y); \
} \
} \
} \
\
__m81_inline __float_type \
__m81_u(__frexp##__s)(__float_type __value, int *__expptr) \
{ \
__float_type __mantissa, __exponent; \
int __iexponent; \
if (__value == 0.0) \
{ \
*__expptr = 0; \
return __value; \
} \
__asm("fgetexp%.x %1, %0" : "=f" (__exponent) : "f" (__value)); \
__iexponent = (int) __exponent + 1; \
*__expptr = __iexponent; \
__asm("fscale%.l %2, %0" : "=f" (__mantissa) \
: "0" (__value), "dmi" (-__iexponent)); \
return __mantissa; \
} \
\
__m81_defun (__float_type, __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, \
__ieee754_pow##__s, (__float_type __x, __float_type __y)) \
{ \
__float_type __result; \
if (__x == 0.0) \
{ \
if (__y <= 0.0) \
__result = 0.0 / 0.0; \
else \
__result = 0.0; \
} \
else 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 if (__x < 0.0) \
{ \
__float_type __temp = __m81_u (__rint##__s) (__y); \
if (__y == __temp) \
{ \
int __i = (int) __y; \
__result = (__m81_u(__ieee754_exp##__s) \
(__y * __m81_u(__ieee754_log##__s) (-__x))); \
if (__i & 1) \
__result = -__result; \
} \
else \
__result = 0.0 / 0.0; \
} \
else \
__result = (__m81_u(__ieee754_exp##__s) \
(__y * __m81_u(__ieee754_log##__s) (__x))); \
return __result; \
} \
\
__m81_defun (__float_type, __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; \
} \
\
__m81_inline __float_type \
__m81_u(__modf##__s)(__float_type __value, __float_type *__iptr) \
{ \
__float_type __modf_int; \
__asm ("fintrz%.x %1, %0" : "=f" (__modf_int) : "f" (__value)); \
*__iptr = __modf_int; \
return __value - __modf_int; \
} \
\
__m81_defun (int, __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, __isnan##__s, (__float_type __value)) \
{ \
char __result; \
__asm("ftst%.x %1\n" \
"fsun %0" : "=dm" (__result) : "f" (__value)); \
return __result; \
} \
\
__m81_defun (int, __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 (int, __ilogb##__s, (__float_type __x)) \
{ \
__float_type __result; \
if (__x == 0.0) \
return 0x80000001; \
__asm("fgetexp%.x %1, %0" : "=f" (__result) : "f" (__x)); \
return (int) __result; \
} \
\
__m81_defun (__float_type, \
__ieee754_scalb##__s, (__float_type __x, __float_type __n)) \
{ \
__float_type __result; \
__asm ("fscale%.x %1, %0" : "=f" (__result) : "f" (__n), "0" (__x)); \
return __result; \
} \
\
__m81_defun (__float_type, __scalbn##__s, (__float_type __x, int __n)) \
{ \
__float_type __result; \
__asm ("fscale%.l %1, %0" : "=f" (__result) : "dmi" (__n), "0" (__x)); \
return __result; \
}
__m81_defun (double, __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;
}
__m81_defun (double, __ieee754_fmod, (double __x, double __y))
{
double __result;
__asm("fmod%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
return __result;
}
__m81_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;
}
__m81_defun (double, __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_defun (double, __ieee754_pow, (double __x, double __y))
{
double __result;
if (__x == 0.0)
{
if (__y <= 0.0)
__result = 0.0 / 0.0;
else
__result = 0.0;
}
else 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 if (__x < 0.0)
{
double __temp = __m81_u (__rint) (__y);
if (__y == __temp)
{
int i = (int) __y;
__result = __m81_u(__ieee754_exp)(__y * __m81_u(__ieee754_log)(-__x));
if (i & 1)
__result = -__result;
}
else
__result = 0.0 / 0.0;
}
else
__result = __m81_u(__ieee754_exp)(__y * __m81_u(__ieee754_log)(__x));
return __result;
}
__m81_defun (double, __ceil, (double __x))
{
double __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;
}
__m81_inline double
__m81_u(__modf)(double __value, double *__iptr)
{
double __modf_int;
__asm ("fintrz%.x %1, %0" : "=f" (__modf_int) : "f" (__value));
*__iptr = __modf_int;
return __value - __modf_int;
}
__m81_defun (int, __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" : "=dm" (__fpsr) : "f" (__value));
return (__fpsr & (2 << 24)) ? (__fpsr & (8 << 24) ? -1 : 1) : 0;
}
__m81_defun (int, __isnan, (double __value))
{
char __result;
__asm("ftst%.x %1\n"
"fsun %0" : "=dm" (__result) : "f" (__value));
return __result;
}
__m81_defun (int, __finite, (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 & (3 << 24)) == 0;
}
__m81_defun (int, __ilogb, (double __x))
{
double __result;
__asm("fgetexp%.x %1, %0" : "=f" (__result) : "f" (__x));
return (int) __result;
}
__m81_defun (double, __ieee754_scalb, (double __x, double __n))
{
double __result;
__asm ("fscale%.x %1, %0" : "=f" (__result) : "f" (__n), "0" (__x));
return __result;
}
__m81_defun (double, __scalbn, (double __x, int __n))
{
double __result;
double __double_n = (double) __n;
__asm ("fscale%.x %1, %0" : "=f" (__result) : "f" (__double_n), "0" (__x));
return __result;
}
__m81_defun (float, __ieee754_remainderf, (float __x, float __y))
{
float __result;
__asm("frem%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
return __result;
}
__m81_defun (float, __ldexpf, (float __x, int __e))
{
float __result;
float __float_e = (float) __e;
__asm("fscale%.x %1, %0" : "=f" (__result) : "f" (__float_e), "0" (__x));
return __result;
}
__m81_defun (float, __ieee754_fmodf, (float __x, float __y))
{
float __result;
__asm("fmod%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
return __result;
}
__m81_inline float
__m81_u(__frexpf)(float __value, int *__expptr)
{
float __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;
}
__m81_defun (float, __floorf, (float __x))
{
float __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, __ieee754_powf, (float __x, float __y))
{
float __result;
if (__x == 0.0f)
{
if (__y <= 0.0f)
__result = 0.0f / 0.0f;
else
__result = 0.0f;
}
else if (__y == 0.0f || __x == 1.0f)
__result = 1.0;
else if (__y == 1.0f)
__result = __x;
else if (__y == 2.0f)
__result = __x * __x;
else if (__x == 10.0f)
__asm("ftentox%.x %1, %0" : "=f" (__result) : "f" (__y));
else if (__x == 2.0f)
__asm("ftwotox%.x %1, %0" : "=f" (__result) : "f" (__y));
else if (__x < 0.0f)
{
float __temp = __m81_u(__rintf)(__y);
if (__y == __temp)
{
int i = (int) __y;
__result = __m81_u(__ieee754_expf)(__y * __m81_u(__ieee754_logf)(-__x));
if (i & 1)
__result = -__result;
}
else
__result = 0.0f / 0.0f;
}
else
__result = __m81_u(__ieee754_expf)(__y * __m81_u(__ieee754_logf)(__x));
return __result;
}
__m81_defun (float, __ceilf, (float __x))
{
float __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;
}
__m81_inline float
__m81_u(__modff)(float __value, float *__iptr)
{
float __modf_int;
__asm ("fintrz%.x %1, %0" : "=f" (__modf_int) : "f" (__value));
*__iptr = __modf_int;
return __value - __modf_int;
}
__m81_defun (int, __isinff, (float __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, __isnanf, (float __value))
{
char __result;
__asm("ftst%.x %1\n"
"fsun %0" : "=dm" (__result) : "f" (__value));
return __result;
}
__m81_defun (int, __finitef, (float __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 (int, __ilogbf, (float __x))
{
float __result;
__asm("fgetexp%.x %1, %0" : "=f" (__result) : "f" (__x));
return (int) __result;
}
__m81_defun (float, __ieee754_scalbf, (float __x, float __n))
{
float __result;
__asm ("fscale%.x %1, %0" : "=f" (__result) : "f" (__n), "0" (__x));
return __result;
}
__m81_defun (float, __scalbnf, (float __x, int __n))
{
float __result;
float __float_n = (float) __n;
__asm ("fscale%.x %1, %0" : "=f" (__result) : "f" (__float_n), "0" (__x));
return __result;
}
__m81_defun (long double, __ieee754_remainderl, (long double __x,
long double __y))
{
long double __result;
__asm ("frem%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
return __result;
}
__m81_defun (long double, __ldexpl, (long double __x, int __e))
{
long double __result;
long double __float_e = (long double) __e;
__asm ("fscale%.x %1, %0" : "=f" (__result) : "f" (__float_e), "0" (__x));
return __result;
}
__m81_defun (long double, __ieee754_fmodl, (long double __x, long double __y))
{
long double __result;
__asm("fmod%.x %1, %0" : "=f" (__result) : "f" (__y), "0" (__x));
return __result;
}
__m81_inline long double
__m81_u(__frexpl)(long double __value, int *__expptr)
{
long 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;
}
__m81_defun (long double, __floorl, (long double __x))
{
long 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_defun (long double, __ieee754_powl, (long double __x, long double __y))
{
long double __result;
if (__x == 0.0l)
{
if (__y <= 0.0l)
__result = 0.0l / 0.0l;
else
__result = 0.0l;
}
else if (__y == 0.0l || __x == 1.0l)
__result = 1.0;
else if (__y == 1.0l)
__result = __x;
else if (__y == 2.0l)
__result = __x * __x;
else if (__x == 10.0l)
__asm("ftentox%.x %1, %0" : "=f" (__result) : "f" (__y));
else if (__x == 2.0l)
__asm("ftwotox%.x %1, %0" : "=f" (__result) : "f" (__y));
else if (__x < 0.0l)
{
long double __temp = __m81_u(__rintl)(__y);
if (__y == __temp)
{
int i = (int) __y;
__result
= __m81_u(__ieee754_expl)(__y * __m81_u(__ieee754_logl)(-__x));
if (i & 1)
__result = -__result;
}
else
__result = 0.0l / 0.0l;
}
else
__result = __m81_u(__ieee754_expl)(__y * __m81_u(__ieee754_logl)(__x));
return __result;
}
__m81_defun (long double, __ceill, (long double __x))
{
long double __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;
}
__m81_inline long double
__m81_u(__modfl)(long double __value, long double *__iptr)
{
long double __modf_int;
__asm ("fintrz%.x %1, %0" : "=f" (__modf_int) : "f" (__value));
*__iptr = __modf_int;
return __value - __modf_int;
}
__m81_defun (int, __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 << 24)) ? (__fpsr & (8 << 24) ? -1 : 1) : 0;
}
__m81_defun (int, __isnanl, (long double __value))
{
char __result;
__asm("ftst%.x %1\n"
"fsun %0" : "=dm" (__result) : "f" (__value));
return __result;
}
__m81_defun (int, __finitel, (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 & (3 << 24)) == 0;
}
__m81_defun (int, __ilogbl, (long double __x))
{
long double __result;
__asm("fgetexp%.x %1, %0" : "=f" (__result) : "f" (__x));
return (int) __result;
}
__m81_defun (long double, __ieee754_scalbl, (long double __x, long double __n))
{
long double __result;
__asm ("fscale%.x %1, %0" : "=f" (__result) : "f" (__n), "0" (__x));
return __result;
}
__m81_defun (long double, __scalbnl, (long double __x, int __n))
{
long double __result;
long double __float_n = (long double) __n;
__asm ("fscale%.x %1, %0" : "=f" (__result) : "f" (__float_n), "0" (__x));
return __result;
}
/* This defines the three variants of the inline functions. */
__inline_functions (double, )
__inline_functions (float, f)
__inline_functions (long double, l)
#undef __inline_functions
#endif /* GCC. */

39
sysdeps/m68k/fpu/s_ldexp.c
View File

@ -1,39 +0,0 @@
/* Copyright (C) 1996 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. */
#include <ansidecl.h>
#define __NO_M81_MATH_INLINES
#include <math.h>
#ifndef FUNC
#define FUNC ldexp
#endif
#ifndef float_type
#define float_type double
#endif
#define __CONCATX(a,b) __CONCAT(a,b)
float_type
DEFUN(__CONCATX(__,FUNC), (x, exp), float_type x AND int exp)
{
return __m81_u(__CONCATX(__,FUNC))(x, exp);
}
#define weak_aliasx(a,b) weak_alias(a,b)
weak_aliasx (__CONCATX(__,FUNC), FUNC)

5
sysdeps/m68k/fpu/s_ldexpf.c
View File

@ -1,5 +0,0 @@
#ifndef FUNC
#define FUNC ldexpf
#endif
#define float_type float
#include <s_ldexp.c>

5
sysdeps/m68k/fpu/s_ldexpl.c
View File

@ -1,5 +0,0 @@
#ifndef FUNC
#define FUNC ldexpl
#endif
#define float_type long double
#include <s_ldexp.c>

38
sysdeps/m68k/fpu/s_scalbn.c
View File

@ -1,2 +1,40 @@
/* Copyright (C) 1996 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. */
#include <ansidecl.h>
#define __NO_M81_MATH_INLINES
#include <math.h>
#ifndef FUNC
#define FUNC scalbn
#include <s_ldexp.c>
#endif
#ifndef float_type
#define float_type double
#endif
#define __CONCATX(a,b) __CONCAT(a,b)
float_type
DEFUN(__CONCATX(__,FUNC), (x, exp), float_type x AND int exp)
{
return __m81_u(__CONCATX(__,FUNC))(x, exp);
}
#define weak_aliasx(a,b) weak_alias(a,b)
weak_aliasx (__CONCATX(__,FUNC), FUNC)

4
sysdeps/m68k/fpu/s_scalbnf.c
View File

@ -1,2 +1,6 @@
#ifndef FUNC
#define FUNC scalbnf
#include <s_ldexpf.c>
#endif
#define float_type float
#include <s_scalbn.c>

4
sysdeps/m68k/fpu/s_scalbnl.c
View File

@ -1,2 +1,6 @@
#ifndef FUNC
#define FUNC scalbnl
#include <s_ldexpl.c>
#endif
#define float_type long double
#include <s_scalbn.c>

2
sysdeps/unix/sysv/linux/m68k/sysdep.S
View File

@ -62,7 +62,6 @@ __syscall_error:
.size __syscall_error, . - __syscall_error
#endif /* PIC */
#ifdef _LIBC_REENTRANT
.globl __errno_location
.type __errno_location, @function
__errno_location:
@ -73,4 +72,3 @@ __errno_location:
#endif
rts
.size __errno_location, . - __errno_location
#endif