softfloat64

README

softfloat64

Software implementation of binary 64-bit floating-point. Based in ucb-bar/berkeley-softfloat-3, ported to pure Golang.

This is not a comprehensive implementation, only the required operations on RandomX have been implemented (plus subnormals / NaN / Inf handling). If you would like any other operations added, change requests will be reviewed regularly.

Documentation

Index

• Constants
• func Add(a, b float64, mode RoundingMode) float64
• func Div(a, b float64, mode RoundingMode) float64
• func Int32ToFloat64(a int32) float64
• func Int64ToFloat64(a int64, mode RoundingMode) float64
• func IsNaN(a float64) bool
• func Mul(a, b float64, mode RoundingMode) float64
• func Sqrt(a float64, mode RoundingMode) float64
• func Sub(a, b float64, mode RoundingMode) float64
• func Uint32ToFloat64(a uint32) float64
• func Uint64ToFloat64(a uint64, mode RoundingMode) float64
• type RoundingMode

Constants

const (
	// RoundingModeToNearest IEEE 754 roundTiesToEven / softfloat_round_near_even
	RoundingModeToNearest = RoundingMode(iota)

	// RoundingModeToNegative IEEE 754 roundTowardNegative / softfloat_round_min
	RoundingModeToNegative

	// RoundingModeToPositive IEEE 754 roundTowardPositive / softfloat_round_max
	RoundingModeToPositive

	// RoundingModeToZero IEEE 754 roundTowardZero / softfloat_round_minMag
	// TODO: unused???
	RoundingModeToZero
)

Functions

func Add

func Add(a, b float64, mode RoundingMode) float64

func Div

func Div(a, b float64, mode RoundingMode) float64

func Int32ToFloat64

func Int32ToFloat64(a int32) float64

func Int64ToFloat64

func Int64ToFloat64(a int64, mode RoundingMode) float64

func IsNaN

func IsNaN(a float64) bool

func Mul

func Mul(a, b float64, mode RoundingMode) float64

func Sqrt

func Sqrt(a float64, mode RoundingMode) float64

func Sub

func Sub(a, b float64, mode RoundingMode) float64

func Uint32ToFloat64

func Uint32ToFloat64(a uint32) float64

func Uint64ToFloat64

func Uint64ToFloat64(a uint64, mode RoundingMode) float64

Types

type RoundingMode

type RoundingMode uint8