connwrappers - match width of input-output port pairs

yosys> help connwrappers

connwrappers [options] [selection]

Wrappers are used in coarse-grain synthesis to wrap cells with smaller ports
in wrapper cells with a (larger) constant port size. I.e. the upper bits
of the wrapper output are signed/unsigned bit extended. This command uses this
knowledge to rewire the inputs of the driven cells to match the output of
the driving cell.

-signed <cell_type> <port_name> <width_param>

-unsigned <cell_type> <port_name> <width_param>

consider the specified signed/unsigned wrapper output

-port <cell_type> <port_name> <width_param> <sign_param>

use the specified parameter to decide if signed or unsigned

The options -signed, -unsigned, and -port can be specified multiple times.