hilomap - technology mapping of constant hi- and/or lo-drivers¶

yosys> help hilomap¶

hilomap [options] [selection]

Map constants to 'tielo' and 'tiehi' driver cells.

-hicell <celltype> <portname>

Replace constant hi bits with this cell.

-locell <celltype> <portname>

Replace constant lo bits with this cell.

-singleton

Create only one hi/lo cell and connect all constant bits
to that cell. Per default a separate cell is created for
each constant bit.