F-floating-point-base OpenVMS usage:floating_point type: F_floating access: read only mechanism: by value Base. The F-floating-point-base argument is an F-floating number containing the base. longword-integer-exponent OpenVMS usage:longword_signed type: longword (signed) access: read only mechanism: by value Exponent. The longword-integer-exponent argument is a signed longword that contains the longword exponent.