NAME

GENLIB_PLACE_SEG_REF - put a segment on a reference belonging an instance in the current figure

SYNOPSIS

#include <genlib.h>
void GENLIB_PLACE_SEG_REF(insname, refname, layer, width, face)
char  ∗insname, ∗refname;
char layer, face;
long width;

See the file man1/alc_origin.1.

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 segment placement

layer

Physical layer of the segment

width

Width of the segment

face

Face of the figure on which the segment is to be placed

DESCRIPTION

PLACE_SEG_REF places a segment regarding the position of the reference, refname, in the instance called insname. The segment 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

the segment is not added, since it would have zero as length

the reference is anywhere else

A segment is drawn between the reference and the abutment box, and is given layer and width as attributs. One of its endpoint is given by the reference coordinates, the other one comes from the face. The face argument is meant in the placed instance, and can take any of the following values:

NORTH

the other endpoint has, for absissa, the x coordinate of the top of the abutment box of the cell, and for ordinate, the y coordinate of the reference.

SOUTH

the other endpoint has, for absissa, the x coordinate of the bottom of the abutment box of the cell, and for ordinate, the y coordinate of the reference.

EAST

the other endpoint has, for absissa, the x coordinate of the reference and for ordinate, the y coordinate of the right of the abutment box of the cell.

WEST

the other endpoint has, for absissa, the x coordinate of the reference and for ordinate, the y coordinate of the left of the abutment box of the cell.

ERRORS

"GENLIB_PLACE_SEG_REF impossible : missing GENLIB_DEF_PHFIG"

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_SEG_REF("r1", "a_0", ALU2, 2, NORTH);
	/∗ Save that on disk ∗/
	GENLIB_SAVE_PHFIG();
}

SEE ALSO

genlib(1), GENLIB_DEF_PHFIG(3), GENLIB_SAVE_PHFIG(3), GENLIB_PHREF(3), GENLIB_PHSEG(3), GENLIB_COPY_UP_REF(3), GENLIB_COPY_UP_ALL_REF(3), GENLIB_PLACE_SEG_REF(3), GENLIB_PLACE_SEG_REF(3), GENLIB_PLACE_SEG_REF(3).

See the file man1/alc_bug_report.1.