digraph rom_sd { Reset [shape = doublecircle, label = "RESET\nbuffer_half = 0\nrom_addr = 0\nrom_enable = 1\nbuffer.addra=0\nready=0"]; node [shape = circle]; Delay [label="DELAY\nrom_addr++"]; WriteBuf [label="WRITEBUF\nbuffer.ena=1\nbuffer.dina=rom_data\nbuffer.addra++\nrom_addr++"]; EndWrite [label="ENDWRITE\nbuffer.ena=1\nbuffer.data=rom_data\nbuffer.addra++\nready=1"]; Wait [label = "WAIT\nbuffer.ena=0"]; Reset -> Reset [label="reset"]; Reset -> Delay [label="!reset"]; Delay -> WriteBuf; WriteBuf -> WriteBuf [label="buffer.addra < 1023"] WriteBuf -> EndWrite [label="buffer.addra == 1023"] EndWrite -> Wait; Wait -> Wait [label = "buffer_half == buffer.address_half"] Wait -> Delay [label = "buffer_half != buffer.address_half"] }