force clk 0 0, 1 4, 0 8 -repeat 8
force wrreq 0 0, 1 62, 0 127
force sclr 0 0, 1 9, 0 17
force rdreq 0 0, 1 133, 0 213
force din x"ABCD" 0, x"1234" 73
run 300 ns