softfloat.c File Reference

#include "milieu.h"
#include "softfloat.h"
#include "softfloat-macros"
#include "softfloat-specialize"

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Functions
INLINE bits64	extractFloat64Frac (float64 a)
INLINE int16	extractFloat64Exp (float64 a)
INLINE flag	extractFloat64Sign (float64 a)
static void	normalizeFloat64Subnormal (bits64 aSig, int16 *zExpPtr, bits64 *zSigPtr)
INLINE float64	packFloat64 (flag zSign, int16 zExp, bits64 zSig)
static float64	roundAndPackFloat64 (flag zSign, int16 zExp, bits64 zSig)
static float64	normalizeRoundAndPackFloat64 (flag zSign, int16 zExp, bits64 zSig)
float64	int32_to_float64 (int32 a)
static float64	addFloat64Sigs (float64 a, float64 b, flag zSign)
static float64	subFloat64Sigs (float64 a, float64 b, flag zSign)
float64	float64_add (float64 a, float64 b)
float64	float64_mul (float64 a, float64 b)
float64	float64_div (float64 a, float64 b)
flag	float64_le (float64 a, float64 b)
flag	float64_ge (float64 a, float64 b)
float64	float64_neg (float64 x)

Variables
int8	float_rounding_mode = float_round_nearest_even
int8	float_exception_flags = 0

Function Documentation

addFloat64Sigs()

static float64 addFloat64Sigs ( float64  a, float64  b, flag  zSign  )

static

Definition at line 286 of file softfloat.c.

References extractFloat64Exp(), extractFloat64Frac(), LIT64, packFloat64(), and roundAndPackFloat64().

Referenced by float64_add().

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extractFloat64Exp()

INLINE int16 extractFloat64Exp

(

float64

a

)

Definition at line 94 of file softfloat.c.

References INLINE.

extractFloat64Frac()

INLINE bits64 extractFloat64Frac

(

float64

a

)

Definition at line 82 of file softfloat.c.

References INLINE, and LIT64.

extractFloat64Sign()

INLINE flag extractFloat64Sign

(

float64

a

)

Definition at line 106 of file softfloat.c.

float64_add()

float64 float64_add	(	float64	a,
		float64	b
	)

Definition at line 448 of file softfloat.c.

References addFloat64Sigs(), extractFloat64Sign(), and subFloat64Sigs().

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float64_div()

float64 float64_div	(	float64	a,
		float64	b
	)

Definition at line 536 of file softfloat.c.

References extractFloat64Exp(), extractFloat64Frac(), extractFloat64Sign(), float_flag_divbyzero, float_flag_invalid, LIT64, normalizeFloat64Subnormal(), packFloat64(), and roundAndPackFloat64().

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float64_ge()

flag float64_ge	(	float64	a,
		float64	b
	)

Definition at line 640 of file softfloat.c.

References float64_le().

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float64_le()

flag float64_le	(	float64	a,
		float64	b
	)

Definition at line 621 of file softfloat.c.

References extractFloat64Exp(), extractFloat64Frac(), extractFloat64Sign(), and float_flag_invalid.

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float64_mul()

float64 float64_mul	(	float64	a,
		float64	b
	)

Definition at line 468 of file softfloat.c.

References extractFloat64Exp(), extractFloat64Frac(), extractFloat64Sign(), float_flag_invalid, LIT64, normalizeFloat64Subnormal(), packFloat64(), and roundAndPackFloat64().

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float64_neg()

float64 float64_neg

(

float64

x

)

Definition at line 647 of file softfloat.c.

int32_to_float64()

float64 int32_to_float64

(

int32

a

)

Definition at line 260 of file softfloat.c.

References packFloat64().

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normalizeFloat64Subnormal()

static void normalizeFloat64Subnormal ( bits64  aSig, int16 *  zExpPtr, bits64 *  zSigPtr  )

static

Definition at line 121 of file softfloat.c.

References INLINE.

Referenced by float64_div(), and float64_mul().

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normalizeRoundAndPackFloat64()

static float64 normalizeRoundAndPackFloat64 ( flag  zSign, int16  zExp, bits64  zSig  )

static

Definition at line 244 of file softfloat.c.

References roundAndPackFloat64().

Referenced by subFloat64Sigs().

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packFloat64()

INLINE float64 packFloat64	(	flag	zSign,
		int16	zExp,
		bits64	zSig
	)

Definition at line 143 of file softfloat.c.

roundAndPackFloat64()

static float64 roundAndPackFloat64 ( flag  zSign, int16  zExp, bits64  zSig  )

static

Definition at line 173 of file softfloat.c.

References float_exception_flags, float_flag_inexact, float_flag_overflow, float_flag_underflow, float_round_down, float_round_nearest_even, float_round_to_zero, float_round_up, float_rounding_mode, float_tininess_before_rounding, LIT64, and packFloat64().

Referenced by addFloat64Sigs(), float64_div(), float64_mul(), and normalizeRoundAndPackFloat64().

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subFloat64Sigs()

static float64 subFloat64Sigs ( float64  a, float64  b, flag  zSign  )

static

Definition at line 367 of file softfloat.c.

References extractFloat64Exp(), extractFloat64Frac(), float_flag_invalid, float_round_down, float_rounding_mode, LIT64, normalizeRoundAndPackFloat64(), and packFloat64().

Referenced by float64_add().

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Variable Documentation

float_exception_flags

int8 float_exception_flags = 0

Definition at line 58 of file softfloat.c.

float_rounding_mode

int8 float_rounding_mode = float_round_nearest_even

Definition at line 57 of file softfloat.c.