EOLHook
The EOLHook field contains the address of a routine that tests a given
character to determine whether it is an end-of-line character and returns
with the appropriate status flags set in the status register. The default action is
to merely compare the character with $0D (a carriage return) and return.
Note that a constant named EOLHook also exists. It is an offset into
TEDispatchRec and has a value of zero.