[mirror_qemu.git] / fpu / softfloat-native.c

/* Native implementation of soft float functions. Only a single status
   context is supported */
#include "softfloat.h"
#include <math.h>
#if defined(CONFIG_SOLARIS)
#include <fenv.h>
#endif

void set_float_rounding_mode(int val STATUS_PARAM)
{
    STATUS(float_rounding_mode) = val;
#if defined(CONFIG_BSD) && !defined(__APPLE__) ||         \
    (defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10)
    fpsetround(val);
#elif defined(__arm__)
    /* nothing to do */
#else
    fesetround(val);
#endif
}

#ifdef FLOATX80
void set_floatx80_rounding_precision(int val STATUS_PARAM)
{
    STATUS(floatx80_rounding_precision) = val;
}
#endif

#if defined(CONFIG_BSD) || \
    (defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10)
#define lrint(d)		((int32_t)rint(d))
#define llrint(d)		((int64_t)rint(d))
#define lrintf(f)		((int32_t)rint(f))
#define llrintf(f)		((int64_t)rint(f))
#define sqrtf(f)		((float)sqrt(f))
#define remainderf(fa, fb)	((float)remainder(fa, fb))
#define rintf(f)		((float)rint(f))
#if !defined(__sparc__) && \
    (defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10)
extern long double rintl(long double);
extern long double scalbnl(long double, int);

long long
llrintl(long double x) {
	return ((long long) rintl(x));
}

long
lrintl(long double x) {
	return ((long) rintl(x));
}

long double
ldexpl(long double x, int n) {
	return (scalbnl(x, n));
}
#endif
#endif

#if defined(_ARCH_PPC)

/* correct (but slow) PowerPC rint() (glibc version is incorrect) */
static double qemu_rint(double x)
{
    double y = 4503599627370496.0;
    if (fabs(x) >= y)
        return x;
    if (x < 0)
        y = -y;
    y = (x + y) - y;
    if (y == 0.0)
        y = copysign(y, x);
    return y;
}

#define rint qemu_rint
#endif

/*----------------------------------------------------------------------------
| Software IEC/IEEE integer-to-floating-point conversion routines.
*----------------------------------------------------------------------------*/
float32 int32_to_float32(int v STATUS_PARAM)
{
    return (float32)v;
}

float32 uint32_to_float32(unsigned int v STATUS_PARAM)
{
    return (float32)v;
}

float64 int32_to_float64(int v STATUS_PARAM)
{
    return (float64)v;
}

float64 uint32_to_float64(unsigned int v STATUS_PARAM)
{
    return (float64)v;
}

#ifdef FLOATX80
floatx80 int32_to_floatx80(int v STATUS_PARAM)
{
    return (floatx80)v;
}
#endif
float32 int64_to_float32( int64_t v STATUS_PARAM)
{
    return (float32)v;
}
float32 uint64_to_float32( uint64_t v STATUS_PARAM)
{
    return (float32)v;
}
float64 int64_to_float64( int64_t v STATUS_PARAM)
{
    return (float64)v;
}
float64 uint64_to_float64( uint64_t v STATUS_PARAM)
{
    return (float64)v;
}
#ifdef FLOATX80
floatx80 int64_to_floatx80( int64_t v STATUS_PARAM)
{
    return (floatx80)v;
}
#endif

/* XXX: this code implements the x86 behaviour, not the IEEE one.  */
#if HOST_LONG_BITS == 32
static inline int long_to_int32(long a)
{
    return a;
}
#else
static inline int long_to_int32(long a)
{
    if (a != (int32_t)a)
        a = 0x80000000;
    return a;
}
#endif

/*----------------------------------------------------------------------------
| Software IEC/IEEE single-precision conversion routines.
*----------------------------------------------------------------------------*/
int float32_to_int32( float32 a STATUS_PARAM)
{
    return long_to_int32(lrintf(a));
}
int float32_to_int32_round_to_zero( float32 a STATUS_PARAM)
{
    return (int)a;
}
int64_t float32_to_int64( float32 a STATUS_PARAM)
{
    return llrintf(a);
}

int64_t float32_to_int64_round_to_zero( float32 a STATUS_PARAM)
{
    return (int64_t)a;
}

float64 float32_to_float64( float32 a STATUS_PARAM)
{
    return a;
}
#ifdef FLOATX80
floatx80 float32_to_floatx80( float32 a STATUS_PARAM)
{
    return a;
}
#endif

unsigned int float32_to_uint32( float32 a STATUS_PARAM)
{
    int64_t v;
    unsigned int res;

    v = llrintf(a);
    if (v < 0) {
        res = 0;
    } else if (v > 0xffffffff) {
        res = 0xffffffff;
    } else {
        res = v;
    }
    return res;
}
unsigned int float32_to_uint32_round_to_zero( float32 a STATUS_PARAM)
{
    int64_t v;
    unsigned int res;

    v = (int64_t)a;
    if (v < 0) {
        res = 0;
    } else if (v > 0xffffffff) {
        res = 0xffffffff;
    } else {
        res = v;
    }
    return res;
}

/*----------------------------------------------------------------------------
| Software IEC/IEEE single-precision operations.
*----------------------------------------------------------------------------*/
float32 float32_round_to_int( float32 a STATUS_PARAM)
{
    return rintf(a);
}

float32 float32_rem( float32 a, float32 b STATUS_PARAM)
{
    return remainderf(a, b);
}

float32 float32_sqrt( float32 a STATUS_PARAM)
{
    return sqrtf(a);
}
int float32_compare( float32 a, float32 b STATUS_PARAM )
{
    if (a < b) {
        return float_relation_less;
    } else if (a == b) {
        return float_relation_equal;
    } else if (a > b) {
        return float_relation_greater;
    } else {
        return float_relation_unordered;
    }
}
int float32_compare_quiet( float32 a, float32 b STATUS_PARAM )
{
    if (isless(a, b)) {
        return float_relation_less;
    } else if (a == b) {
        return float_relation_equal;
    } else if (isgreater(a, b)) {
        return float_relation_greater;
    } else {
        return float_relation_unordered;
    }
}
int float32_is_signaling_nan( float32 a1)
{
    float32u u;
    uint32_t a;
    u.f = a1;
    a = u.i;
    return ( ( ( a>>22 ) & 0x1FF ) == 0x1FE ) && ( a & 0x003FFFFF );
}

int float32_is_nan( float32 a1 )
{
    float32u u;
    uint64_t a;
    u.f = a1;
    a = u.i;
    return ( 0xFF800000 < ( a<<1 ) );
}

/*----------------------------------------------------------------------------
| Software IEC/IEEE double-precision conversion routines.
*----------------------------------------------------------------------------*/
int float64_to_int32( float64 a STATUS_PARAM)
{
    return long_to_int32(lrint(a));
}
int float64_to_int32_round_to_zero( float64 a STATUS_PARAM)
{
    return (int)a;
}
int64_t float64_to_int64( float64 a STATUS_PARAM)
{
    return llrint(a);
}
int64_t float64_to_int64_round_to_zero( float64 a STATUS_PARAM)
{
    return (int64_t)a;
}
float32 float64_to_float32( float64 a STATUS_PARAM)
{
    return a;
}
#ifdef FLOATX80
floatx80 float64_to_floatx80( float64 a STATUS_PARAM)
{
    return a;
}
#endif
#ifdef FLOAT128
float128 float64_to_float128( float64 a STATUS_PARAM)
{
    return a;
}
#endif

unsigned int float64_to_uint32( float64 a STATUS_PARAM)
{
    int64_t v;
    unsigned int res;

    v = llrint(a);
    if (v < 0) {
        res = 0;
    } else if (v > 0xffffffff) {
        res = 0xffffffff;
    } else {
        res = v;
    }
    return res;
}
unsigned int float64_to_uint32_round_to_zero( float64 a STATUS_PARAM)
{
    int64_t v;
    unsigned int res;

    v = (int64_t)a;
    if (v < 0) {
        res = 0;
    } else if (v > 0xffffffff) {
        res = 0xffffffff;
    } else {
        res = v;
    }
    return res;
}
uint64_t float64_to_uint64 (float64 a STATUS_PARAM)
{
    int64_t v;

    v = llrint(a + (float64)INT64_MIN);

    return v - INT64_MIN;
}
uint64_t float64_to_uint64_round_to_zero (float64 a STATUS_PARAM)
{
    int64_t v;

    v = (int64_t)(a + (float64)INT64_MIN);

    return v - INT64_MIN;
}

/*----------------------------------------------------------------------------
| Software IEC/IEEE double-precision operations.
*----------------------------------------------------------------------------*/
#if defined(__sun__) && \
    (defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10)
static inline float64 trunc(float64 x)
{
    return x < 0 ? -floor(-x) : floor(x);
}
#endif
float64 float64_trunc_to_int( float64 a STATUS_PARAM )
{
    return trunc(a);
}

float64 float64_round_to_int( float64 a STATUS_PARAM )
{
#if defined(__arm__)
    switch(STATUS(float_rounding_mode)) {
    default:
    case float_round_nearest_even:
        asm("rndd %0, %1" : "=f" (a) : "f"(a));
        break;
    case float_round_down:
        asm("rnddm %0, %1" : "=f" (a) : "f"(a));
        break;
    case float_round_up:
        asm("rnddp %0, %1" : "=f" (a) : "f"(a));
        break;
    case float_round_to_zero:
        asm("rnddz %0, %1" : "=f" (a) : "f"(a));
        break;
    }
#else
    return rint(a);
#endif
}

float64 float64_rem( float64 a, float64 b STATUS_PARAM)
{
    return remainder(a, b);
}

float64 float64_sqrt( float64 a STATUS_PARAM)
{
    return sqrt(a);
}
int float64_compare( float64 a, float64 b STATUS_PARAM )
{
    if (a < b) {
        return float_relation_less;
    } else if (a == b) {
        return float_relation_equal;
    } else if (a > b) {
        return float_relation_greater;
    } else {
        return float_relation_unordered;
    }
}
int float64_compare_quiet( float64 a, float64 b STATUS_PARAM )
{
    if (isless(a, b)) {
        return float_relation_less;
    } else if (a == b) {
        return float_relation_equal;
    } else if (isgreater(a, b)) {
        return float_relation_greater;
    } else {
        return float_relation_unordered;
    }
}
int float64_is_signaling_nan( float64 a1)
{
    float64u u;
    uint64_t a;
    u.f = a1;
    a = u.i;
    return
           ( ( ( a>>51 ) & 0xFFF ) == 0xFFE )
        && ( a & LIT64( 0x0007FFFFFFFFFFFF ) );

}

int float64_is_nan( float64 a1 )
{
    float64u u;
    uint64_t a;
    u.f = a1;
    a = u.i;

    return ( LIT64( 0xFFF0000000000000 ) < (bits64) ( a<<1 ) );

}

#ifdef FLOATX80

/*----------------------------------------------------------------------------
| Software IEC/IEEE extended double-precision conversion routines.
*----------------------------------------------------------------------------*/
int floatx80_to_int32( floatx80 a STATUS_PARAM)
{
    return long_to_int32(lrintl(a));
}
int floatx80_to_int32_round_to_zero( floatx80 a STATUS_PARAM)
{
    return (int)a;
}
int64_t floatx80_to_int64( floatx80 a STATUS_PARAM)
{
    return llrintl(a);
}
int64_t floatx80_to_int64_round_to_zero( floatx80 a STATUS_PARAM)
{
    return (int64_t)a;
}
float32 floatx80_to_float32( floatx80 a STATUS_PARAM)
{
    return a;
}
float64 floatx80_to_float64( floatx80 a STATUS_PARAM)
{
    return a;
}

/*----------------------------------------------------------------------------
| Software IEC/IEEE extended double-precision operations.
*----------------------------------------------------------------------------*/
floatx80 floatx80_round_to_int( floatx80 a STATUS_PARAM)
{
    return rintl(a);
}
floatx80 floatx80_rem( floatx80 a, floatx80 b STATUS_PARAM)
{
    return remainderl(a, b);
}
floatx80 floatx80_sqrt( floatx80 a STATUS_PARAM)
{
    return sqrtl(a);
}
int floatx80_compare( floatx80 a, floatx80 b STATUS_PARAM )
{
    if (a < b) {
        return float_relation_less;
    } else if (a == b) {
        return float_relation_equal;
    } else if (a > b) {
        return float_relation_greater;
    } else {
        return float_relation_unordered;
    }
}
int floatx80_compare_quiet( floatx80 a, floatx80 b STATUS_PARAM )
{
    if (isless(a, b)) {
        return float_relation_less;
    } else if (a == b) {
        return float_relation_equal;
    } else if (isgreater(a, b)) {
        return float_relation_greater;
    } else {
        return float_relation_unordered;
    }
}
int floatx80_is_signaling_nan( floatx80 a1)
{
    floatx80u u;
    uint64_t aLow;
    u.f = a1;

    aLow = u.i.low & ~ LIT64( 0x4000000000000000 );
    return
           ( ( u.i.high & 0x7FFF ) == 0x7FFF )
        && (bits64) ( aLow<<1 )
        && ( u.i.low == aLow );
}

int floatx80_is_nan( floatx80 a1 )
{
    floatx80u u;
    u.f = a1;
    return ( ( u.i.high & 0x7FFF ) == 0x7FFF ) && (bits64) ( u.i.low<<1 );
}

#endif
Commit	Line	Data
	1	/* Native implementation of soft float functions. Only a single status
	2	context is supported */
	3	#include "softfloat.h"
	4	#include <math.h>
	5	#if defined(CONFIG_SOLARIS)
	6	#include <fenv.h>
	7	#endif
	8
	9	void set_float_rounding_mode(int val STATUS_PARAM)
	10	{
	11	STATUS(float_rounding_mode) = val;
	12	#if defined(CONFIG_BSD) && !defined(__APPLE__) \|\| \
	13	(defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10)
	14	fpsetround(val);
	15	#elif defined(__arm__)
	16	/* nothing to do */
	17	#else
	18	fesetround(val);
	19	#endif
	20	}
	21
	22	#ifdef FLOATX80
	23	void set_floatx80_rounding_precision(int val STATUS_PARAM)
	24	{
	25	STATUS(floatx80_rounding_precision) = val;
	26	}
	27	#endif
	28
	29	#if defined(CONFIG_BSD) \|\| \
	30	(defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10)
	31	#define lrint(d) ((int32_t)rint(d))
	32	#define llrint(d) ((int64_t)rint(d))
	33	#define lrintf(f) ((int32_t)rint(f))
	34	#define llrintf(f) ((int64_t)rint(f))
	35	#define sqrtf(f) ((float)sqrt(f))
	36	#define remainderf(fa, fb) ((float)remainder(fa, fb))
	37	#define rintf(f) ((float)rint(f))
	38	#if !defined(__sparc__) && \
	39	(defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10)
	40	extern long double rintl(long double);
	41	extern long double scalbnl(long double, int);
	42
	43	long long
	44	llrintl(long double x) {
	45	return ((long long) rintl(x));
	46	}
	47
	48	long
	49	lrintl(long double x) {
	50	return ((long) rintl(x));
	51	}
	52
	53	long double
	54	ldexpl(long double x, int n) {
	55	return (scalbnl(x, n));
	56	}
	57	#endif
	58	#endif
	59
	60	#if defined(_ARCH_PPC)
	61
	62	/* correct (but slow) PowerPC rint() (glibc version is incorrect) */
	63	static double qemu_rint(double x)
	64	{
	65	double y = 4503599627370496.0;
	66	if (fabs(x) >= y)
	67	return x;
	68	if (x < 0)
	69	y = -y;
	70	y = (x + y) - y;
	71	if (y == 0.0)
	72	y = copysign(y, x);
	73	return y;
	74	}
	75
	76	#define rint qemu_rint
	77	#endif
	78
	79	/*----------------------------------------------------------------------------
	80	\| Software IEC/IEEE integer-to-floating-point conversion routines.
	81	----------------------------------------------------------------------------/
	82	float32 int32_to_float32(int v STATUS_PARAM)
	83	{
	84	return (float32)v;
	85	}
	86
	87	float32 uint32_to_float32(unsigned int v STATUS_PARAM)
	88	{
	89	return (float32)v;
	90	}
	91
	92	float64 int32_to_float64(int v STATUS_PARAM)
	93	{
	94	return (float64)v;
	95	}
	96
	97	float64 uint32_to_float64(unsigned int v STATUS_PARAM)
	98	{
	99	return (float64)v;
	100	}
	101
	102	#ifdef FLOATX80
	103	floatx80 int32_to_floatx80(int v STATUS_PARAM)
	104	{
	105	return (floatx80)v;
	106	}
	107	#endif
	108	float32 int64_to_float32( int64_t v STATUS_PARAM)
	109	{
	110	return (float32)v;
	111	}
	112	float32 uint64_to_float32( uint64_t v STATUS_PARAM)
	113	{
	114	return (float32)v;
	115	}
	116	float64 int64_to_float64( int64_t v STATUS_PARAM)
	117	{
	118	return (float64)v;
	119	}
	120	float64 uint64_to_float64( uint64_t v STATUS_PARAM)
	121	{
	122	return (float64)v;
	123	}
	124	#ifdef FLOATX80
	125	floatx80 int64_to_floatx80( int64_t v STATUS_PARAM)
	126	{
	127	return (floatx80)v;
	128	}
	129	#endif
	130
	131	/* XXX: this code implements the x86 behaviour, not the IEEE one. */
	132	#if HOST_LONG_BITS == 32
	133	static inline int long_to_int32(long a)
	134	{
	135	return a;
	136	}
	137	#else
	138	static inline int long_to_int32(long a)
	139	{
	140	if (a != (int32_t)a)
	141	a = 0x80000000;
	142	return a;
	143	}
	144	#endif
	145
	146	/*----------------------------------------------------------------------------
	147	\| Software IEC/IEEE single-precision conversion routines.
	148	----------------------------------------------------------------------------/
	149	int float32_to_int32( float32 a STATUS_PARAM)
	150	{
	151	return long_to_int32(lrintf(a));
	152	}
	153	int float32_to_int32_round_to_zero( float32 a STATUS_PARAM)
	154	{
	155	return (int)a;
	156	}
	157	int64_t float32_to_int64( float32 a STATUS_PARAM)
	158	{
	159	return llrintf(a);
	160	}
	161
	162	int64_t float32_to_int64_round_to_zero( float32 a STATUS_PARAM)
	163	{
	164	return (int64_t)a;
	165	}
	166
	167	float64 float32_to_float64( float32 a STATUS_PARAM)
	168	{
	169	return a;
	170	}
	171	#ifdef FLOATX80
	172	floatx80 float32_to_floatx80( float32 a STATUS_PARAM)
	173	{
	174	return a;
	175	}
	176	#endif
	177
	178	unsigned int float32_to_uint32( float32 a STATUS_PARAM)
	179	{
	180	int64_t v;
	181	unsigned int res;
	182
	183	v = llrintf(a);
	184	if (v < 0) {
	185	res = 0;
	186	} else if (v > 0xffffffff) {
	187	res = 0xffffffff;
	188	} else {
	189	res = v;
	190	}
	191	return res;
	192	}
	193	unsigned int float32_to_uint32_round_to_zero( float32 a STATUS_PARAM)
	194	{
	195	int64_t v;
	196	unsigned int res;
	197
	198	v = (int64_t)a;
	199	if (v < 0) {
	200	res = 0;
	201	} else if (v > 0xffffffff) {
	202	res = 0xffffffff;
	203	} else {
	204	res = v;
	205	}
	206	return res;
	207	}
	208
	209	/*----------------------------------------------------------------------------
	210	\| Software IEC/IEEE single-precision operations.
	211	----------------------------------------------------------------------------/
	212	float32 float32_round_to_int( float32 a STATUS_PARAM)
	213	{
	214	return rintf(a);
	215	}
	216
	217	float32 float32_rem( float32 a, float32 b STATUS_PARAM)
	218	{
	219	return remainderf(a, b);
	220	}
	221
	222	float32 float32_sqrt( float32 a STATUS_PARAM)
	223	{
	224	return sqrtf(a);
	225	}
	226	int float32_compare( float32 a, float32 b STATUS_PARAM )
	227	{
	228	if (a < b) {
	229	return float_relation_less;
	230	} else if (a == b) {
	231	return float_relation_equal;
	232	} else if (a > b) {
	233	return float_relation_greater;
	234	} else {
	235	return float_relation_unordered;
	236	}
	237	}
	238	int float32_compare_quiet( float32 a, float32 b STATUS_PARAM )
	239	{
	240	if (isless(a, b)) {
	241	return float_relation_less;
	242	} else if (a == b) {
	243	return float_relation_equal;
	244	} else if (isgreater(a, b)) {
	245	return float_relation_greater;
	246	} else {
	247	return float_relation_unordered;
	248	}
	249	}
	250	int float32_is_signaling_nan( float32 a1)
	251	{
	252	float32u u;
	253	uint32_t a;
	254	u.f = a1;
	255	a = u.i;
	256	return ( ( ( a>>22 ) & 0x1FF ) == 0x1FE ) && ( a & 0x003FFFFF );
	257	}
	258
	259	int float32_is_nan( float32 a1 )
	260	{
	261	float32u u;
	262	uint64_t a;
	263	u.f = a1;
	264	a = u.i;
	265	return ( 0xFF800000 < ( a<<1 ) );
	266	}
	267
	268	/*----------------------------------------------------------------------------
	269	\| Software IEC/IEEE double-precision conversion routines.
	270	----------------------------------------------------------------------------/
	271	int float64_to_int32( float64 a STATUS_PARAM)
	272	{
	273	return long_to_int32(lrint(a));
	274	}
	275	int float64_to_int32_round_to_zero( float64 a STATUS_PARAM)
	276	{
	277	return (int)a;
	278	}
	279	int64_t float64_to_int64( float64 a STATUS_PARAM)
	280	{
	281	return llrint(a);
	282	}
	283	int64_t float64_to_int64_round_to_zero( float64 a STATUS_PARAM)
	284	{
	285	return (int64_t)a;
	286	}
	287	float32 float64_to_float32( float64 a STATUS_PARAM)
	288	{
	289	return a;
	290	}
	291	#ifdef FLOATX80
	292	floatx80 float64_to_floatx80( float64 a STATUS_PARAM)
	293	{
	294	return a;
	295	}
	296	#endif
	297	#ifdef FLOAT128
	298	float128 float64_to_float128( float64 a STATUS_PARAM)
	299	{
	300	return a;
	301	}
	302	#endif
	303
	304	unsigned int float64_to_uint32( float64 a STATUS_PARAM)
	305	{
	306	int64_t v;
	307	unsigned int res;
	308
	309	v = llrint(a);
	310	if (v < 0) {
	311	res = 0;
	312	} else if (v > 0xffffffff) {
	313	res = 0xffffffff;
	314	} else {
	315	res = v;
	316	}
	317	return res;
	318	}
	319	unsigned int float64_to_uint32_round_to_zero( float64 a STATUS_PARAM)
	320	{
	321	int64_t v;
	322	unsigned int res;
	323
	324	v = (int64_t)a;
	325	if (v < 0) {
	326	res = 0;
	327	} else if (v > 0xffffffff) {
	328	res = 0xffffffff;
	329	} else {
	330	res = v;
	331	}
	332	return res;
	333	}
	334	uint64_t float64_to_uint64 (float64 a STATUS_PARAM)
	335	{
	336	int64_t v;
	337
	338	v = llrint(a + (float64)INT64_MIN);
	339
	340	return v - INT64_MIN;
	341	}
	342	uint64_t float64_to_uint64_round_to_zero (float64 a STATUS_PARAM)
	343	{
	344	int64_t v;
	345
	346	v = (int64_t)(a + (float64)INT64_MIN);
	347
	348	return v - INT64_MIN;
	349	}
	350
	351	/*----------------------------------------------------------------------------
	352	\| Software IEC/IEEE double-precision operations.
	353	----------------------------------------------------------------------------/
	354	#if defined(__sun__) && \
	355	(defined(CONFIG_SOLARIS) && CONFIG_SOLARIS_VERSION < 10)
	356	static inline float64 trunc(float64 x)
	357	{
	358	return x < 0 ? -floor(-x) : floor(x);
	359	}
	360	#endif
	361	float64 float64_trunc_to_int( float64 a STATUS_PARAM )
	362	{
	363	return trunc(a);
	364	}
	365
	366	float64 float64_round_to_int( float64 a STATUS_PARAM )
	367	{
	368	#if defined(__arm__)
	369	switch(STATUS(float_rounding_mode)) {
	370	default:
	371	case float_round_nearest_even:
	372	asm("rndd %0, %1" : "=f" (a) : "f"(a));
	373	break;
	374	case float_round_down:
	375	asm("rnddm %0, %1" : "=f" (a) : "f"(a));
	376	break;
	377	case float_round_up:
	378	asm("rnddp %0, %1" : "=f" (a) : "f"(a));
	379	break;
	380	case float_round_to_zero:
	381	asm("rnddz %0, %1" : "=f" (a) : "f"(a));
	382	break;
	383	}
	384	#else
	385	return rint(a);
	386	#endif
	387	}
	388
	389	float64 float64_rem( float64 a, float64 b STATUS_PARAM)
	390	{
	391	return remainder(a, b);
	392	}
	393
	394	float64 float64_sqrt( float64 a STATUS_PARAM)
	395	{
	396	return sqrt(a);
	397	}
	398	int float64_compare( float64 a, float64 b STATUS_PARAM )
	399	{
	400	if (a < b) {
	401	return float_relation_less;
	402	} else if (a == b) {
	403	return float_relation_equal;
	404	} else if (a > b) {
	405	return float_relation_greater;
	406	} else {
	407	return float_relation_unordered;
	408	}
	409	}
	410	int float64_compare_quiet( float64 a, float64 b STATUS_PARAM )
	411	{
	412	if (isless(a, b)) {
	413	return float_relation_less;
	414	} else if (a == b) {
	415	return float_relation_equal;
	416	} else if (isgreater(a, b)) {
	417	return float_relation_greater;
	418	} else {
	419	return float_relation_unordered;
	420	}
	421	}
	422	int float64_is_signaling_nan( float64 a1)
	423	{
	424	float64u u;
	425	uint64_t a;
	426	u.f = a1;
	427	a = u.i;
	428	return
	429	( ( ( a>>51 ) & 0xFFF ) == 0xFFE )
	430	&& ( a & LIT64( 0x0007FFFFFFFFFFFF ) );
	431
	432	}
	433
	434	int float64_is_nan( float64 a1 )
	435	{
	436	float64u u;
	437	uint64_t a;
	438	u.f = a1;
	439	a = u.i;
	440
	441	return ( LIT64( 0xFFF0000000000000 ) < (bits64) ( a<<1 ) );
	442
	443	}
	444
	445	#ifdef FLOATX80
	446
	447	/*----------------------------------------------------------------------------
	448	\| Software IEC/IEEE extended double-precision conversion routines.
	449	----------------------------------------------------------------------------/
	450	int floatx80_to_int32( floatx80 a STATUS_PARAM)
	451	{
	452	return long_to_int32(lrintl(a));
	453	}
	454	int floatx80_to_int32_round_to_zero( floatx80 a STATUS_PARAM)
	455	{
	456	return (int)a;
	457	}
	458	int64_t floatx80_to_int64( floatx80 a STATUS_PARAM)
	459	{
	460	return llrintl(a);
	461	}
	462	int64_t floatx80_to_int64_round_to_zero( floatx80 a STATUS_PARAM)
	463	{
	464	return (int64_t)a;
	465	}
	466	float32 floatx80_to_float32( floatx80 a STATUS_PARAM)
	467	{
	468	return a;
	469	}
	470	float64 floatx80_to_float64( floatx80 a STATUS_PARAM)
	471	{
	472	return a;
	473	}
	474
	475	/*----------------------------------------------------------------------------
	476	\| Software IEC/IEEE extended double-precision operations.
	477	----------------------------------------------------------------------------/
	478	floatx80 floatx80_round_to_int( floatx80 a STATUS_PARAM)
	479	{
	480	return rintl(a);
	481	}
	482	floatx80 floatx80_rem( floatx80 a, floatx80 b STATUS_PARAM)
	483	{
	484	return remainderl(a, b);
	485	}
	486	floatx80 floatx80_sqrt( floatx80 a STATUS_PARAM)
	487	{
	488	return sqrtl(a);
	489	}
	490	int floatx80_compare( floatx80 a, floatx80 b STATUS_PARAM )
	491	{
	492	if (a < b) {
	493	return float_relation_less;
	494	} else if (a == b) {
	495	return float_relation_equal;
	496	} else if (a > b) {
	497	return float_relation_greater;
	498	} else {
	499	return float_relation_unordered;
	500	}
	501	}
	502	int floatx80_compare_quiet( floatx80 a, floatx80 b STATUS_PARAM )
	503	{
	504	if (isless(a, b)) {
	505	return float_relation_less;
	506	} else if (a == b) {
	507	return float_relation_equal;
	508	} else if (isgreater(a, b)) {
	509	return float_relation_greater;
	510	} else {
	511	return float_relation_unordered;
	512	}
	513	}
	514	int floatx80_is_signaling_nan( floatx80 a1)
	515	{
	516	floatx80u u;
	517	uint64_t aLow;
	518	u.f = a1;
	519
	520	aLow = u.i.low & ~ LIT64( 0x4000000000000000 );
	521	return
	522	( ( u.i.high & 0x7FFF ) == 0x7FFF )
	523	&& (bits64) ( aLow<<1 )
	524	&& ( u.i.low == aLow );
	525	}
	526
	527	int floatx80_is_nan( floatx80 a1 )
	528	{
	529	floatx80u u;
	530	u.f = a1;
	531	return ( ( u.i.high & 0x7FFF ) == 0x7FFF ) && (bits64) ( u.i.low<<1 );
	532	}
	533
	534	#endif