LA_WWADDW - LA_WWADDW - 5.3 English - 68552

LA_WWADDW adds a vector into a doubled-single vector.

Purpose:

 LA_WWADDW adds a vector W into a doubled-single vector (X, Y).

 This works for all extant IBM's hex and binary floating point
 arithmetic, but not for decimal.

Parameters:

• N – [in]

  N is INTEGER

  The length of vectors X, Y, and W.

• X – [inout]

  X is REAL array, dimension (N)

  The first part of the doubled-single accumulation vector.

• Y – [inout]

  Y is REAL array, dimension (N)

  The second part of the doubled-single accumulation vector.

• W – [in]

  W is REAL array, dimension (N)

  The vector to be added.