set_property LOC RAMB36_X4Y18 [get_cells -hierarchical -filter { NAME =~  "*rom_rom*dout_o_reg_0" && PRIMITIVE_TYPE =~ BMEM.*.* }]
set_property LOC RAMB36_X4Y19 [get_cells -hierarchical -filter { NAME =~  "*rom_rom*dout_o_reg_1" && PRIMITIVE_TYPE =~ BMEM.*.* }]