vlib work
vcom -just e -87 -explicit   -work work pkg_util.vhd
vcom -skip e -87 -explicit   -work work pkg_util.vhd
vcom -just e -87 -explicit   -work work irda_uart_timesim.vhd
vcom -skip e -87 -explicit   -work work irda_uart_timesim.vhd
vcom -just e -93 -explicit   -work work irda_uart_tb.vhd
vcom -skip e -93 -explicit   -work work irda_uart_tb.vhd
vsim -t 1ps -sdfmax /UUT=irda_uart_timesim.sdf   -lib work irda_uart_tb
do wave_post.do
view structure
view signals
run 100us