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mathieeedoubbas

Index


IEEEDPAbs() IEEEDPAdd() IEEEDPCeil() IEEEDPCmp()
IEEEDPDiv() IEEEDPFix() IEEEDPFloor() IEEEDPFlt()
IEEEDPMul() IEEEDPNeg() IEEEDPSub() IEEEDPTst()

IEEEDPAbs()

Synopsis

double IEEEDPAbs(
         double y );

Function

Calculate the absolute value of the given IEEE double precision
floating point number.

Inputs

y - IEEE double precision floating point number.

Result

x - absolute value of y.

Flags:
  zero     : result is zero
  negative : 0
  overflow : 0

IEEEDPAdd()

Synopsis

double IEEEDPAdd(
         double y,
         double z );

Function

Calculate the sum of two IEEE double precision numbers.

Inputs

y - first addend.
z - first addend.

Result

x - sum of y and z.

Flags:
  zero     : result is zero
  negative : result is negative
  overflow : result is too large or too small for IEEE DP format

IEEEDPCeil()

Synopsis

double IEEEDPCeil(
         double y );

Function

Calculates the ceiling value of an IEEE double precision number.

Inputs

y - IEEE double precision floating point number.

Result

x - ceiling of y.

Flags:
  zero     : result is zero
  negative : result is negative
  overflow : 0

IEEEDPCmp()

Synopsis

LONG IEEEDPCmp(
         double y,
         double z );

Function

Compares two IEEE double precision numbers.

Inputs

y - IEEE double precision floating point number.
z - IEEE double precision floating point number.

Result

c -
    +1: y > z
     0: y = z
    -1: y < z

Flags:
  zero     : y = z
  negative : y < z
  overflow : 0

IEEEDPDiv()

Synopsis

double IEEEDPDiv(
         double y,
         double z );

Function

Divides two IEEE double precision numbers.

Inputs

y - dividend.
z - divisor.

Result

x - quotient.

IEEEDPFix()

Synopsis

LONG IEEEDPFix(
         double y );

Function

Converts an IEEE double precision floating point number to an integer.

Inputs

y - IEEE double precision floating point number.

Result

x - the closest signed 32-bit integer to y.

Flags:
  zero     : result is zero
  negative : result is negative
  overflow : ieeedp out of integer-range

IEEEDPFloor()

Synopsis

double IEEEDPFloor(
         double y );

Function

Calculates the floor value of an IEEE double precision number.

Inputs

y - IEEE double precision floating point number.

Result

x - floor of y.

Flags:
  zero     : result is zero
  negative : result is negative
  overflow : 0

IEEEDPFlt()

Synopsis

double IEEEDPFlt(
         LONG y );

Function

Convert an integer into an IEEE double precision floating point
number.

Inputs

y - a 32-bit integer.

Result

x - IEEE double precision floating point number.

Flags:
  zero     : result is zero
  negative : result is negative
  overflow : 0

IEEEDPMul()

Synopsis

double IEEEDPMul(
         double y,
         double z );

Function

Multiplies two IEEE double precision numbers.

Inputs

y - first multiplicand.
z - second multiplicand.

Result

x - product.

IEEEDPNeg()

Synopsis

double IEEEDPNeg(
         double y );

Function

Switches the sign of the given IEEE double precision floating point
number.

Inputs

y - IEEE double precision floating point number.

Result

x - the negation of y.

Flags:
  zero     : result is zero
  negative : result is negative
  overflow : 0

IEEEDPSub()

Synopsis

double IEEEDPSub(
         double y,
         double z );

Function

Subtracts two IEEE double precision floating point numbers.

Inputs

y - minuend.
z - subtrahend.

Result

x - difference.

IEEEDPTst()

Synopsis

LONG IEEEDPTst(
         double y );

Function

Compares an IEEE double precision floting point number against zero.

Inputs

y - IEEE double precision floating point number.

Result

c -
    +1: y > 0.0
     0: y = 0.0
    -1: y < 0.0

Flags:
  zero     : result is zero
  negative : result is negative
  overflow : 0

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