Provided by: alliance_5.1.1-1.1build1_amd64 
NAME
losig - mbk logical signal
DESCRIPTION
The losig is used to describe a logical signal.
The declarations needed to work on losig are available in the header file
"/labo/include/mlo404.h", where '404' is the actual mbk version.
The following C structure supports the description of the logical signal :
typedef struct losig {
struct losig ∗NEXT;
struct chain ∗NAMECHAIN;
float CAPA;
long INDEX;
char TYPE;
struct ptype ∗USER;
} losig_list;
NEXT Pointer to the next losig of the list.
INDEX Long integer beeing the signal identifier. It represents the net
number at a given hierachical level, and must be unique.
NAMECHAIN Pointer to a list of names, aliases, attached to the signal. If no
names are given then the field points to NULL. Many names can be
present if the signal result of the flatten of a netlist. See
chain(3) for details.
CAPA Floating point number containing the value of the total capacitance
attached to a signal in respect to ground. This field may be set to
zero, since it make sens only if the signal is the result of a layout
extraction, or has been used for electrical simulation purposes.
TYPE This field can take two legal values depending on the types of the
connectors attached to it. See locon(3) for detail.
EXTERNAL The signal is connected at least to one external
connector, a connector of the figure beeing
described.
INTERNAL The signal is connected only to instances or
transistors connectors.
The tools using the TYPE should fill it with care, since unexpected
results may appear if the consistency with connectors is violated.
USER Pointer to a ptype list, see ptype(3) for details, that is a general
purpose pointer used to share informations on the signal.
Remark : the netlist view is given in terms of connectors pointing to signals,
but it may be useful to have also the dual representation, in term of
list of connectors attached to a single signal. This may be obtained
by the lofigchain function.
SEE ALSO
mbk(1), addlosig(3), getlosig(3), dellosig(3), lofigchain(3), locon(3), lofig(3),
chain(3), ptype(3).