Provided by: alliance_5.0-20120515-6_amd64
NAME
GENLIB_LOSIG - declare an internal logical signal, or a vector of internal logical signals
SYNOPSYS
#include <genlib.h> void GENLIB_LOSIG(name) char ∗name;
PARAMETERS
name Name of a signal to be declared
DESCRIPTION
LOSIG creates the internal signal, or the set of internal signals coresponding to a vector description, represented by name. See BUS(3) and ELM(3) for more details on vectors. The need for declaring signal is mostly felt when one wants to create a consistent vector declaration, for file formats that do not allow partial or multiple declarations, like vhdl. This way, a user can create a vector and access its member the way he wants, but still having an internal consistent form. Warning If a signal is declared with LOSIG, but not used, the resulting file will have an internal node floating. This is not an error from a genlib point of view, so the user must be aware of it.
EXAMPLE
#include <genlib.h> main() { /∗ Create a figure to work on ∗/ GENLIB_DEF_LOFIG("cell"); /∗ Define interface ∗ GENLIB_LOCON(... /∗ declare buses ∗/ GENLIB_LOSIG("grum[23:0]"); GENLIB_LOSIG("iconection[0:7]"); /∗ Place an instance ∗/ GENLIB_LOINS("no2_y" ,"no3" ,"grum[12]" ,"a9_s" ,"new_no3_s" ,"vdd" ,"vss" ,0); GENLIB_LOINS("no2_y" ,"no4" ,"a12_s" ,"grum[6]" ,"no4_s" ,"vdd" ,"vss" ,0); GENLIB_LOINS("a2_y" ,"a22" ,"no3_s" ,"grum[15]" ,"a22_s" ,"vdd" ,"vss" ,0); /∗ Save all that on disk ∗/ GENLIB_SAVE_LOFIG(); }
SEE ALSO
genlib(1), GENLIB_LOINS(3), GENLIB_LOCON(3), GENLIB_BUS(3), GENLIB_ELM(3).