|  | # Any change in ROM instances path should be updated in following two files | 
|  | # 1. hw/top_earlgrey/data/placement.xdc and | 
|  | # 2. hw/top_earlgrey/util/vivado_hook_opt_design_post.tcl | 
|  | set_property LOC RAMB36_X4Y18 [get_cells -hierarchical -filter { NAME =~  "*u_rom_ctrl*u_rom*rdata_o_reg_0" && PRIMITIVE_TYPE =~ BMEM.*.* }] | 
|  | set_property LOC RAMB36_X4Y19 [get_cells -hierarchical -filter { NAME =~  "*u_rom_ctrl*u_rom*rdata_o_reg_1" && PRIMITIVE_TYPE =~ BMEM.*.* }] | 
|  | set_property LOC RAMB36_X3Y14 [get_cells -hierarchical -filter { NAME =~  "*u_rom_ctrl*u_rom*rdata_o_reg_2" && PRIMITIVE_TYPE =~ BMEM.*.* }] | 
|  | set_property LOC RAMB36_X3Y15 [get_cells -hierarchical -filter { NAME =~  "*u_rom_ctrl*u_rom*rdata_o_reg_3" && PRIMITIVE_TYPE =~ BMEM.*.* }] |