SYNOPSYS
#include <genlib.h> void GENLIB_PLACE_CON_REF(insname, refname, conname, layer, width, face) char *insname, *refname, *conname; char layer, face; long width;
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PARAMETERS
- insname
- Name of the instance in the which the reference is to be searched for
- refname
- Name of the reference to be used for the connector placement
- conname
- Name of the connector to be placed
- layer
- Physical layer of the connector
- width
- Width of the connector
- face
- Face of the figure on which the connector is to be placed
DESCRIPTION
PLACE_CON_REF places a connector called conname ragarding the position of the reference, refname, in the instance called insname. The connector coordinates are computed from the reference coordinates and the face given as argument.Two behaviours are expected, regarding the reference coordinates:
- the reference is on the given face of the abutment box
- a connector called conname is added on top of the reference, with the given layer and width.
- the reference is anywhere else
-
a connector called conname is added on the given face, face, of the
abutment box, at the y coordinates of the reference if the face
is EAST or WEST, or x one if the face is NORTH or
SOUTH. Then a segment is drawn between the reference and the connector.
All drawn objects are given layer and width as caracteristics.
The face argument is meant in the placed instance, and can take any of the following values: - NORTH
- for a connector placed on the top of the cell.
- SOUTH
- for a connector placed on the bottom of the cell.
- EAST
- for a connector placed on the right side of the cell.
- WEST
- for a connector placed on the left side of the cell.
ERRORS
"GENLIB_PLACE_CON_REF impossible : missing GENLIB_DEF_PHFIG"- No figure has been yet specified by a call to DEF_PHFIG. So it isn't possible to place a reference inside it. you must call DEF_PHFIG before any other layout action.
- No figure has been yet specified by a call to DEF_PHFIG. So it isn't possible to place a reference inside it. you must call DEF_PHFIG before any other layout action.
- The current figure does not have an abutment box. Use DEF_AB(3) before this function.
- The face parameter does not have a legal value, but XX.
- No instance called insname exists in the current figure
- No reference called refname exists in the model of the instance insname.
EXAMPLE
#include <genlib.h> main() { /* Create a figure to work on */ GENLIB_DEF_PHFIG("cell"); GENLIB_PLACE("gaci0_b", "r1", NOSYM, 23L, 54L); /* Put a reference */ GENLIB_PLACE_CON_REF("r1", "a_0", ALU2, 2, NORTH); /* Save that on disk */ GENLIB_SAVE_PHFIG(); }