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glibc
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Rewritten.

This commit is contained in:
Ulrich Drepper 1997-05-07 15:29:27 +00:00
parent 761edbdece
commit e7af313d34
3 changed files with 111 additions and 218 deletions
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97
sysdeps/m68k/fpu/s_ccosh.c
View File

@ -25,9 +25,6 @@
#ifndef SUFF
#define SUFF
#endif
#ifndef huge_val
#define huge_val HUGE_VAL
#endif
#ifndef float_type
#define float_type double
#endif
@ -40,78 +37,40 @@ __complex__ float_type
s(__ccosh) (__complex__ float_type x)
{
__complex__ float_type retval;
unsigned long ix_cond = __m81_test (__imag__ x);
__real__ x = s(fabs) (__real__ x);
if (m81(__finite) (__real__ x))
if ((ix_cond & (__M81_COND_INF|__M81_COND_NAN)) == 0)
{
if (m81(__finite) (__imag__ x))
{
float_type cosh_val;
float_type sin_ix, cos_ix;
/* Imaginary part is finite. */
float_type sin_ix, cos_ix;
__asm ("fsincos%.x %2,%1:%0" : "=f" (sin_ix), "=f" (cos_ix)
: "f" (__imag__ x));
cosh_val = m81(__ieee754_cosh) (__real__ x);
__real__ retval = cos_ix * cosh_val;
__imag__ retval = sin_ix * cosh_val;
}
else if (__real__ x == 0)
{
__imag__ retval = 0.0;
__real__ retval = huge_val - huge_val;
}
__asm ("fsincos%.x %2,%1:%0" : "=f" (sin_ix), "=f" (cos_ix)
: "f" (__imag__ x));
__real__ retval = cos_ix * m81(__ieee754_cosh) (__real__ x);
if (ix_cond & __M81_COND_ZERO)
__imag__ retval = (m81(__signbit) (__real__ x)
? -__imag__ x : __imag__ x);
else
__real__ retval = __imag__ retval = huge_val - huge_val;
}
else if (m81(__isinf) (__real__ x))
{
if (__imag__ x == 0)
{
__real__ retval = huge_val;
__imag__ retval = __imag__ x;
}
else if (m81(__finite) (__imag__ x))
{
float_type remainder, pi_2;
int quadrant;
__real__ retval = __imag__ retval = huge_val;
__asm ("fmovecr %#0,%0\n\tfscale%.w %#-1,%0" : "=f" (pi_2));
__asm ("fmod%.x %2,%0\n\tfmove%.l %/fpsr,%1"
: "=f" (remainder), "=dm" (quadrant)
: "f" (pi_2), "0" (__imag__ x));
quadrant = (quadrant >> 16) & 0x83;
if (quadrant & 0x80)
quadrant ^= 0x83;
switch (quadrant)
{
default:
break;
case 1:
__real__ retval = -__real__ retval;
break;
case 2:
__real__ retval = -__real__ retval;
case 3:
__imag__ retval = -__imag__ retval;
break;
}
}
else
{
/* The subtraction raises the invalid exception. */
__real__ retval = huge_val;
__imag__ retval = huge_val - huge_val;
}
}
else if (__imag__ x == 0)
{
__real__ retval = 0.0/0.0;
__imag__ retval = __imag__ x;
__imag__ retval = sin_ix * m81(__ieee754_sinh) (__real__ x);
}
else
__real__ retval = __imag__ retval = 0.0/0.0;
{
unsigned long rx_cond = __m81_test (__real__ x);
if (rx_cond & __M81_COND_ZERO)
{
__real__ retval = __imag__ x - __imag__ x;
__imag__ retval = __real__ x;
}
else
{
if (rx_cond & __M81_COND_INF)
__real__ retval = s(fabs) (__real__ x);
else
__real__ retval = 0.0/0.0;
__imag__ retval = __imag__ x - __imag__ x;
}
}
return retval;
}

135
sysdeps/m68k/fpu/s_cexp.c
View File

@ -25,9 +25,6 @@
#ifndef SUFF
#define SUFF
#endif
#ifndef huge_val
#define huge_val HUGE_VAL
#endif
#ifndef float_type
#define float_type double
#endif
@ -40,85 +37,79 @@ __complex__ float_type
s(__cexp) (__complex__ float_type x)
{
__complex__ float_type retval;
unsigned long ix_cond;
if (m81(__finite) (__real__ x))
ix_cond = __m81_test (__imag__ x);
if ((ix_cond & (__M81_COND_NAN|__M81_COND_INF)) == 0)
{
if (m81(__finite) (__imag__ x))
{
float_type exp_val = m81(__ieee754_exp) (__real__ x);
/* Imaginary part is finite. */
float_type exp_val = m81(__ieee754_exp) (__real__ x);
__real__ retval = __imag__ retval = exp_val;
if (m81(__finite) (exp_val))
{
float_type sin_ix, cos_ix;
__asm ("fsincos%.x %2,%1:%0" : "=f" (sin_ix), "=f" (cos_ix)
: "f" (__imag__ x));
__real__ retval *= cos_ix;
__imag__ retval *= sin_ix;
}
__real__ retval = __imag__ retval = exp_val;
if (m81(__finite) (exp_val))
{
float_type sin_ix, cos_ix;
__asm ("fsincos%.x %2,%1:%0" : "=f" (sin_ix), "=f" (cos_ix)
: "f" (__imag__ x));
__real__ retval *= cos_ix;
if (ix_cond & __M81_COND_ZERO)
__imag__ retval = __imag__ x;
else
goto fix_sign;
}
else
/* If the imaginary part is +-inf or NaN and the real part is
not +-inf the result is NaN + iNaN. */
__real__ retval = __imag__ retval = 0.0/0.0;
}
else if (m81(__isinf) (__real__ x))
{
if (m81(__finite) (__imag__ x))
{
float_type value = m81(__signbit) (__real__ x) ? 0.0 : huge_val;
if (__imag__ x == 0.0)
{
__real__ retval = value;
__imag__ retval = __imag__ x;
}
else
{
float_type remainder, pi_2;
int quadrant;
__real__ retval = value;
__imag__ retval = value;
fix_sign:
__asm ("fmovecr %#0,%0\n\tfscale%.w %#-1,%0" : "=f" (pi_2));
__asm ("fmod%.x %2,%0\n\tfmove%.l %/fpsr,%1"
: "=f" (remainder), "=dm" (quadrant)
: "f" (pi_2), "0" (__imag__ x));
quadrant = (quadrant >> 16) & 0x83;
if (quadrant & 0x80)
quadrant ^= 0x83;
switch (quadrant)
{
default:
break;
case 1:
__real__ retval = -__real__ retval;
break;
case 2:
__real__ retval = -__real__ retval;
case 3:
__imag__ retval = -__imag__ retval;
break;
}
}
}
else if (m81(__signbit) (__real__ x) == 0)
{
__real__ retval = huge_val;
__imag__ retval = 0.0/0.0;
__imag__ retval *= sin_ix;
}
else
{
__real__ retval = 0.0;
__imag__ retval = s(__copysign) (0.0, __imag__ x);
/* Compute the sign of the result. */
float_type remainder, pi_2;
int quadrant;
__asm ("fmovecr %#0,%0\n\tfscale%.w %#-1,%0" : "=f" (pi_2));
__asm ("fmod%.x %2,%0\n\tfmove%.l %/fpsr,%1"
: "=f" (remainder), "=dm" (quadrant)
: "f" (pi_2), "0" (__imag__ x));
quadrant = (quadrant >> 16) & 0x83;
if (quadrant & 0x80)
quadrant ^= 0x83;
switch (quadrant)
{
default:
break;
case 1:
__real__ retval = -__real__ retval;
break;
case 2:
__real__ retval = -__real__ retval;
case 3:
__imag__ retval = -__imag__ retval;
break;
}
if (ix_cond & __M81_COND_ZERO && !m81(__isnan) (exp_val))
__imag__ retval = __imag__ x;
}
}
else
/* If the real part is NaN the result is NaN + iNaN. */
__real__ retval = __imag__ retval = 0.0/0.0;
{
unsigned long rx_cond = __m81_test (__real__ x);
if (rx_cond & __M81_COND_INF)
{
/* Real part is infinite. */
if (rx_cond & __M81_COND_NEG)
{
__real__ retval = __imag__ retval = 0.0;
if (ix_cond & __M81_COND_NEG)
__imag__ retval = -__imag__ retval;
}
else
{
__real__ retval = __real__ x;
__imag__ retval = __imag__ x - __imag__ x;
}
}
else
__real__ retval = __imag__ retval = __imag__ x - __imag__ x;
}
return retval;
}

97
sysdeps/m68k/fpu/s_csinh.c
View File

@ -25,9 +25,6 @@
#ifndef SUFF
#define SUFF
#endif
#ifndef huge_val
#define huge_val HUGE_VAL
#endif
#ifndef float_type
#define float_type double
#endif
@ -40,87 +37,33 @@ __complex__ float_type
s(__csinh) (__complex__ float_type x)
{
__complex__ float_type retval;
int negate = m81(__signbit) (__real__ x);
unsigned long ix_cond;
__real__ x = s(fabs) (__real__ x);
ix_cond = __m81_test (__imag__ x);
if (m81(__finite) (__real__ x))
if ((ix_cond & (__M81_COND_INF|__M81_COND_NAN)) == 0)
{
if (m81(__finite) (__imag__ x))
{
float_type sinh_val;
float_type sin_ix, cos_ix;
/* Imaginary part is finite. */
float_type sin_ix, cos_ix;
__asm ("fsincos%.x %2,%1:%0" : "=f" (sin_ix), "=f" (cos_ix)
: "f" (__imag__ x));
sinh_val = m81(__ieee754_sinh) (__real__ x);
__real__ retval = cos_ix * sinh_val;
__imag__ retval = sin_ix * sinh_val;
if (negate)
__real__ retval = -__real__ retval;
}
else if (__real__ x == 0)
{
__real__ retval = 0.0;
__imag__ retval = 0.0/0.0;
if (negate)
__real__ retval = -__real__ retval;
}
__asm ("fsincos%.x %2,%1:%0" : "=f" (sin_ix), "=f" (cos_ix)
: "f" (__imag__ x));
__real__ retval = cos_ix * m81(__ieee754_sinh) (__real__ x);
if (ix_cond & __M81_COND_ZERO)
__imag__ retval = __imag__ x;
else
__real__ retval = __imag__ retval = 0.0/0.0;
}
else if (m81(__isinf) (__real__ x))
{
if (__imag__ x == 0.0)
{
__real__ retval = negate ? -huge_val : huge_val;
__imag__ retval = __imag__ x;
}
else if (m81(__finite) (__imag__ x))
{
float_type remainder, pi_2;
int quadrant;
__real__ retval = __imag__ retval = huge_val;
__asm ("fmovecr %#0,%0\n\tfscale%.w %#-1,%0" : "=f" (pi_2));
__asm ("fmod%.x %2,%0\n\tfmove%.l %/fpsr,%1"
: "=f" (remainder), "=dm" (quadrant)
: "f" (pi_2), "0" (__imag__ x));
quadrant = (quadrant >> 16) & 0x83;
if (quadrant & 0x80)
quadrant ^= 0x83;
if (negate)
quadrant ^= 1;
switch (quadrant)
{
default:
break;
case 1:
__real__ retval = -__real__ retval;
break;
case 2:
__real__ retval = -__real__ retval;
case 3:
__imag__ retval = -__imag__ retval;
break;
}
}
else
{
/* The subtraction raises the invalid exception. */
__real__ retval = huge_val;
__imag__ retval = huge_val - huge_val;
}
}
else if (__imag__ x == 0.0)
{
__real__ retval = 0.0/0.0;
__imag__ retval = __imag__ x;
__imag__ retval = sin_ix * m81(__ieee754_cosh) (__real__ x);
}
else
__real__ retval = __imag__ retval = 0.0/0.0;
{
unsigned long rx_cond = __m81_test (__real__ x);
__imag__ retval = __imag__ x - __imag__ x;
if (rx_cond & (__M81_COND_ZERO|__M81_COND_INF|__M81_COND_NAN))
__real__ retval = __real__ x;
else
__real__ retval = __imag__ retval;
}
return retval;
}