setInt16 abstract method
Sets the two bytes starting at the specified
byteOffset in this
object to the two's complement binary representation of the specified
value, which must fit in two bytes.
In other words,
value must lie
between -215 and 215 - 1, inclusive.
byteOffset must be non-negative, and
byteOffset + 2 must be less than or equal to the length of this object.
void setInt16(int byteOffset, int value, [Endian endian = Endian.big]);