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mathieeesingbas

Index


IEEESPAbs() IEEESPAdd() IEEESPCeil() IEEESPCmp()
IEEESPDiv() IEEESPFix() IEEESPFloor() IEEESPFlt()
IEEESPMul() IEEESPNeg() IEEESPSub() IEEESPTst()

IEEESPAbs()

Synopsis

float IEEESPAbs(
         float y );

Function

Calculate the absolute value of a given floating point number

Result

absolute value of y

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

IEEESPAdd()

Synopsis

float IEEESPAdd(
         float y,
         float z );

Function

Calculate the sum of two IEEE single precision numbers

Result

sum of y and z

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

IEEESPCeil()

Synopsis

float IEEESPCeil(
         float y );

Function

Calculate the least integer ieeesp-number
greater than or equal to y

Result

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

IEEESPCmp()

Synopsis

LONG IEEESPCmp(
         LONG y,
         LONG z );

Function

Compares two ieeesp numbers

Result

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

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

IEEESPDiv()

Synopsis

float IEEESPDiv(
         float y,
         float z );

Function

Divide two IEEE single precision floating point numbers
x = y / z;

Result

Flags:
  zero     : result is zero
  negative : result is negative
  overflow : result is out of range

IEEESPFix()

Synopsis

LONG IEEESPFix(
         float y );

Function

Convert ieeesp-number to integer

Result

absolute value of y

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

IEEESPFloor()

Synopsis

float IEEESPFloor(
         float y );

Function

Calculate the largest integer ieeesp-number
less than or equal to fnum

Result

IEEE single precision floating point

Flags:
  zero     : result is zero
  negative : result is negative
  overflow : 0 (???)

Example

IEEESPFloor(10.5) = 10
IEEESPFloor(0.5)  = 0
IEEESPFloor(-0.5) = -1
IEEESPFloor(-10.5)= -11

IEEESPFlt()

Synopsis

float IEEESPFlt(
         LONG y );

Result

Flags:
  zero     : result is zero
  negative : result is negative
  overflow : IEEE single precision number is not exactly the integer

IEEESPMul()

Synopsis

float IEEESPMul(
         float y,
         float z );

Function

Multiply two IEEE single precision numbers
res = y * z;

Result

Flags:
  zero     : result is zero
  negative : result is negative
  overflow : result is out of range

IEEESPNeg()

Synopsis

float IEEESPNeg(
         float y );

Function

Switch the sign of the given ieeesp number

Result

-y

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

IEEESPSub()

Synopsis

float IEEESPSub(
         float y,
         float z );

Function

Subtract two ieeesp numbers
x = y-z;

Result

Flags:
  zero     : result is zero
  negative : result is negative
  overflow : result is out of range

IEEESPTst()

Synopsis

LONG IEEESPTst(
         float y );

Function

Compare a ieeesp-number against zero.

Result

+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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