NAME¶
phfig - mbk physical figure
DESCRIPTION¶
The
phfig is used to describe a hierarchical level of a
symbolic
layout and may contain any of the legal physical objects needed for a
layout but a
phfig. All coordinates are
symbolic and therefor
put on a virtual grid in booth x and y directions.
The declarations needed to work on
phfig are available in the header file
"/labo/include/mph402.h", where '
402' is the actual
mbk version.
The following C structure supports the description of the layout view :
typedef struct phfig {
struct phfig ∗NEXT;
struct chain ∗MODELCHAIN;
struct phseg ∗PHSEG;
struct phvia ∗PHVIA;
struct phref ∗PHREF;
struct phins ∗PHINS;
struct phcon ∗PHCON;
char ∗NAME;
char MODE;
long XAB1, YAB1, XAB2, YAB2;
struct ptype ∗USER;
} phfig_list;
- NEXT
- Pointer to the next phfig present in ram.
- NAME
- Name of the figure. It identifies a figure (or
model), so it should be unique in order to warranty consistency of
cells libraries. In order to ensure this consistency, the NAME
field must be filled with the disk file name while parsing, and must be
used as file name for driving.
- PHINS
- Pointer to the head of the list of instances being used for
the model description. See phins(3) for details.
- PHCON
- Pointer to the head of the list of connectors (terminals)
of the model. See phcon(3) for details.
- PHSEG
- Pointer to the head of the list of segments (wires) of the
model. See phseg(3) for details.
- PHVIA
- Pointer to the head of the list of contacs and vias of the
model. See phvia(3) for details.
- PHREF
- Pointer to the head of the list of references of the model.
See phref(3) for details.
- XAB1, YAB1, XAB2, YAB2
- Coordinates of the bottom left corner of the abutment
box of the figure. The abutment box of a model represents the
external visibility of a figure and is what reference is made to when
instanciating the model. One should well distinguish the abutment
box from the bounding box, which is the smallest rectangle that
includes all cell descriptors. The size and position of the abutment
box is a designer concern, and cannot be computed.
- MODE
- Caracter indicating the status of the figure in memory.
This field can take two values :
- ´A´
- all the cell is loaded in ram.
- ´P´
- only information concerning the model interface is present,
that means connectors and the abutment box. All other lists are
empty.
- MODELCHAIN
- Pointer to a chain list, see chain(3) for details,
of names. These are the names of the models that are at least instanciated
once in the figure.
- USER
- Pointer to a ptype list, see ptype(3) for details,
that is a general purpose pointer used to share informations on the
model.
- Remark :
- mbk's physical view of a cell is releted to it's logical
view by means of connector names, that must be identical.
SEE ALSO¶
mbk(1),
addphfig(3),
getphfig(3),
delphfig(3),
loadphfig(3), savephfig(3),
phins(3),
phvia(3),
phcon(3),
phseg(3),
phref(3),
ptype(3),
lofig(3).
BUG REPORT¶
This tool is under development at the
ASIM department of the
LIP6
laboratory.
We need your feedback to improve documentation and tools.