## 9.3.105 MULT_HIGH (I, J) (Alpha only)

Description: | Multiplies two 64-bit unsigned integers.
Class: | Elemental function; Generic
Arguments: | I | Must be of type INTEGER(8).
| J | Must be of type INTEGER(8).
Results: | The result type is INTEGER(8). The result value is the upper (leftmost) 64 bits of the 128-bit unsigned result.

Examples

Consider the following:

              INTEGER(8) I,J,K
              I=2_8**53
              J=2_8**51
              K = MULT_HIGH (I,J)
              PRINT *,I,J,K
              WRITE (6,1000)I,J,K
      1000    FORMAT (' ', 3(Z,1X))
              END

This example prints the following:

           9007199254740992      2251799813685248         1099511627776
               20000000000000           8000000000000             10000000000

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