%%%		Definition of Fields
Left		IS      0		Definition of fields
Right		IS	8		\qquad with\lineref|Right|in nodes.
NextInst	IS	16
WaitList	IS	24		Start of the \.{Wait} list.
LeftWait	IS	WaitList+Left
RightWait	IS	WaitList+Right
NextTime	IS	40		\lineref|NextTime|
ID		IS	44		%%hide
In		IS	46
Out		IS	47
%%off