Other gate-level cells¶ Other gate-level cells¶ yosys> help $_TBUF_¶ A tri-state buffer. Truth table: A E | Y -----+--- a 1 | a - 0 | z Properties: is_evaluable Simulation model (verilog)¶ Listing 363 simcells.v¶ 473module \$_TBUF_ (A, E, Y); 474 input A, E; 475 output Y; 476 assign Y = E ? A : 1'bz; 477endmodule