#ifndef SOFTFLOAT_H
#define SOFTFLOAT_H
+#if defined(HOST_SOLARIS) && defined(NEEDS_LIBSUNMATH)
+#include <sunmath.h>
+#endif
+
#include <inttypes.h>
#include "config.h"
typedef uint8_t flag;
typedef uint8_t uint8;
typedef int8_t int8;
+#ifndef _AIX
typedef int uint16;
typedef int int16;
+#endif
typedef unsigned int uint32;
typedef signed int int32;
typedef uint64_t uint64;
/*----------------------------------------------------------------------------
| Software IEC/IEEE floating-point types.
*----------------------------------------------------------------------------*/
+/* Use structures for soft-float types. This prevents accidentally mixing
+ them with native int/float types. A sufficiently clever compiler and
+ sane ABI should be able to see though these structs. However
+ x86/gcc 3.x seems to struggle a bit, so leave them disabled by default. */
+//#define USE_SOFTFLOAT_STRUCT_TYPES
+#ifdef USE_SOFTFLOAT_STRUCT_TYPES
+typedef struct {
+ uint32_t v;
+} float32;
+/* The cast ensures an error if the wrong type is passed. */
+#define float32_val(x) (((float32)(x)).v)
+#define make_float32(x) __extension__ ({ float32 f32_val = {x}; f32_val; })
+typedef struct {
+ uint64_t v;
+} float64;
+#define float64_val(x) (((float64)(x)).v)
+#define make_float64(x) __extension__ ({ float64 f64_val = {x}; f64_val; })
+#else
typedef uint32_t float32;
typedef uint64_t float64;
+#define float32_val(x) (x)
+#define float64_val(x) (x)
+#define make_float32(x) (x)
+#define make_float64(x) (x)
+#endif
#ifdef FLOATX80
typedef struct {
uint64_t low;
float128 int32_to_float128( int STATUS_PARAM );
#endif
float32 int64_to_float32( int64_t STATUS_PARAM );
+float32 uint64_to_float32( uint64_t STATUS_PARAM );
float64 int64_to_float64( int64_t STATUS_PARAM );
+float64 uint64_to_float64( uint64_t STATUS_PARAM );
#ifdef FLOATX80
floatx80 int64_to_floatx80( int64_t STATUS_PARAM );
#endif
int float32_lt_quiet( float32, float32 STATUS_PARAM );
int float32_compare( float32, float32 STATUS_PARAM );
int float32_compare_quiet( float32, float32 STATUS_PARAM );
+int float32_is_nan( float32 );
int float32_is_signaling_nan( float32 );
-int float64_is_nan( float64 a );
+float32 float32_scalbn( float32, int STATUS_PARAM );
INLINE float32 float32_abs(float32 a)
{
- return a & 0x7fffffff;
+ return make_float32(float32_val(a) & 0x7fffffff);
}
INLINE float32 float32_chs(float32 a)
{
- return a ^ 0x80000000;
+ return make_float32(float32_val(a) ^ 0x80000000);
+}
+
+INLINE int float32_is_infinity(float32 a)
+{
+ return (float32_val(a) & 0x7fffffff) == 0x7f800000;
+}
+
+INLINE int float32_is_neg(float32 a)
+{
+ return float32_val(a) >> 31;
+}
+
+INLINE int float32_is_zero(float32 a)
+{
+ return (float32_val(a) & 0x7fffffff) == 0;
}
+#define float32_zero make_float32(0)
+
/*----------------------------------------------------------------------------
| Software IEC/IEEE double-precision conversion routines.
*----------------------------------------------------------------------------*/
unsigned int float64_to_uint32_round_to_zero( float64 STATUS_PARAM );
int64_t float64_to_int64( float64 STATUS_PARAM );
int64_t float64_to_int64_round_to_zero( float64 STATUS_PARAM );
+uint64_t float64_to_uint64 (float64 a STATUS_PARAM);
+uint64_t float64_to_uint64_round_to_zero (float64 a STATUS_PARAM);
float32 float64_to_float32( float64 STATUS_PARAM );
#ifdef FLOATX80
floatx80 float64_to_floatx80( float64 STATUS_PARAM );
int float64_lt_quiet( float64, float64 STATUS_PARAM );
int float64_compare( float64, float64 STATUS_PARAM );
int float64_compare_quiet( float64, float64 STATUS_PARAM );
+int float64_is_nan( float64 a );
int float64_is_signaling_nan( float64 );
+float64 float64_scalbn( float64, int STATUS_PARAM );
INLINE float64 float64_abs(float64 a)
{
- return a & 0x7fffffffffffffffLL;
+ return make_float64(float64_val(a) & 0x7fffffffffffffffLL);
}
INLINE float64 float64_chs(float64 a)
{
- return a ^ 0x8000000000000000LL;
+ return make_float64(float64_val(a) ^ 0x8000000000000000LL);
+}
+
+INLINE int float64_is_infinity(float64 a)
+{
+ return (float64_val(a) & 0x7fffffffffffffffLL ) == 0x7ff0000000000000LL;
}
+INLINE int float64_is_neg(float64 a)
+{
+ return float64_val(a) >> 63;
+}
+
+INLINE int float64_is_zero(float64 a)
+{
+ return (float64_val(a) & 0x7fffffffffffffffLL) == 0;
+}
+
+#define float64_zero make_float64(0)
+
#ifdef FLOATX80
/*----------------------------------------------------------------------------
int floatx80_eq_signaling( floatx80, floatx80 STATUS_PARAM );
int floatx80_le_quiet( floatx80, floatx80 STATUS_PARAM );
int floatx80_lt_quiet( floatx80, floatx80 STATUS_PARAM );
+int floatx80_is_nan( floatx80 );
int floatx80_is_signaling_nan( floatx80 );
+floatx80 floatx80_scalbn( floatx80, int STATUS_PARAM );
INLINE floatx80 floatx80_abs(floatx80 a)
{
return a;
}
+INLINE int floatx80_is_infinity(floatx80 a)
+{
+ return (a.high & 0x7fff) == 0x7fff && a.low == 0;
+}
+
+INLINE int floatx80_is_neg(floatx80 a)
+{
+ return a.high >> 15;
+}
+
+INLINE int floatx80_is_zero(floatx80 a)
+{
+ return (a.high & 0x7fff) == 0 && a.low == 0;
+}
+
#endif
#ifdef FLOAT128
int float128_eq_signaling( float128, float128 STATUS_PARAM );
int float128_le_quiet( float128, float128 STATUS_PARAM );
int float128_lt_quiet( float128, float128 STATUS_PARAM );
+int float128_compare( float128, float128 STATUS_PARAM );
+int float128_compare_quiet( float128, float128 STATUS_PARAM );
+int float128_is_nan( float128 );
int float128_is_signaling_nan( float128 );
+float128 float128_scalbn( float128, int STATUS_PARAM );
INLINE float128 float128_abs(float128 a)
{
return a;
}
+INLINE int float128_is_infinity(float128 a)
+{
+ return (a.high & 0x7fffffffffffffffLL) == 0x7fff000000000000LL && a.low == 0;
+}
+
+INLINE int float128_is_neg(float128 a)
+{
+ return a.high >> 63;
+}
+
+INLINE int float128_is_zero(float128 a)
+{
+ return (a.high & 0x7fffffffffffffffLL) == 0 && a.low == 0;
+}
+
#endif
#else /* CONFIG_SOFTFLOAT */
projects / qemu / blobdiff