NAME¶
GENLIB_DEF_PHSC - load a netlist and open a layout model as current figure
SYNOPSYS¶
#include <genlib.h>
void GENLIB_DEF_PHSC(cellname)
char ∗cellname;
ORIGIN¶
This software belongs to the ALLIANCE CAD SYSTEM developed by the ASIM team at
LIP6 laboratory of Université Pierre et Marie CURIE, in Paris,
France.
Web :
http://asim.lip6.fr/recherche/alliance/
E-mail :
alliance-users@asim.lip6.fr
PARAMETERS¶
- cellname
- Name of the netlist figure to be looked for in memory or on disk, for
futher physical placement.
DESCRIPTION¶
DEF_PHSC defines the current working figure by it's name, the
cellname argument, for layout and netlist operations. It can be use
anywhere in the
genlib program, but must appear at least once at the
top of it, since it also initalize the user's preferences through environment
variables.
DEF_PHSC looks for the netlist figure
cellname in memory, and if
not found, on disk. If it fails, an error occurs and the process terminates.
The main issue of this function is to allow the netlist and physical
descriptions of a circuit in two separate files, for standard cell approach.
So there is no need to recreate the netlist view each time the placement
changes.
If the physical figure called
cellname doesn't exists in memory, it is
created. If it already exists in memory, it makes it the current working
figure.
DEF_PHSC doesn't look on disk for the figure
cellname,
so be careful not to overwrite an existing file while saving later on.
EXAMPLE¶
#include <genlib.h>
main()
{
/∗ Create a figure to work on ∗/
GENLIB_DEF_PHSC("mycell");
/∗ Place an instance ∗/
GENLIB_SC_PLACE("instance", NOSYM,0L,0L);
/∗ Save all that on disk ∗/
GENLIB_SAVE_PHSC();
}
SEE ALSO¶
genlib(1),
GENLIB_SAVE_PHSC(3),
GENLIB_SC_PLACE(3),
GENLIB_SC_TOP(3),
GENLIB_SC_BOTTOM(3),
GENLIB_SC_LEFT(3),
GENLIB_SC_RIGHT(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.