File list (Check if you may need any files):
8051forxilinx\.recordref
.............\addsub_core_.vhd
.............\addsub_core_struc.vhd
.............\addsub_cy_.vhd
.............\addsub_cy_rtl.vhd
.............\addsub_ovcy_.vhd
.............\addsub_ovcy_rtl.vhd
.............\alucore_.vhd
.............\alucore_rtl.vhd
.............\alumux_.vhd
.............\alumux_rtl.vhd
.............\AutoConstraint_mc8051_top.sdc
.............\comb_divider_.vhd
.............\comb_divider_rtl.vhd
.............\comb_mltplr_.vhd
.............\comb_mltplr_rtl.vhd
.............\control_fsm_.vhd
.............\control_fsm_rtl.vhd
.............\control_mem_.vhd
.............\control_mem_rtl.vhd
.............\dcml_adjust_.vhd
.............\dcml_adjust_rtl.vhd
.............\device_usage_statistics.html
.............\layer0.sro
.............\layer0.tlg
.............\layer1.info
.............\layer1.sro
.............\layer1.tlg
.............\mc8051.ipf
.............\mc8051.ipf_ISE_Backup
.............\mc8051.ise
.............\mc8051.ise_ISE_Backup
.............\mc8051.ntrc_log
.............\mc8051_alu_.vhd
.............\mc8051_alu_struc.vhd
.............\mc8051_clockdiv.vhd
.............\mc8051_control_.vhd
.............\mc8051_control_struc.vhd
.............\mc8051_core_.vhd
.............\mc8051_core_struc.vhd
.............\mc8051_p.vhd
.............\mc8051_ram.asy
.............\mc8051_ram.edn
.............\mc8051_ram.sym
.............\mc8051_ram.v
.............\mc8051_ram.veo
.............\mc8051_ram.vhd
.............\mc8051_ram.vho
.............\mc8051_ram.xco
.............\mc8051_ram_flist.txt
.............\mc8051_ram_readme.txt
.............\mc8051_rom.asy
.............\mc8051_rom.edn
.............\mc8051_rom.mif
.............\mc8051_rom.sym
.............\mc8051_rom.v
.............\mc8051_rom.veo
.............\mc8051_rom.vhd
.............\mc8051_rom.vho
.............\mc8051_rom.xco
.............\mc8051_rom_flist.txt
.............\mc8051_rom_readme.txt
.............\mc8051_siu_.vhd
.............\mc8051_siu_rtl.vhd
.............\mc8051_tmrctr_.vhd
.............\mc8051_tmrctr_rtl.vhd
.............\mc8051_top.bgn
.............\mc8051_top.bit
.............\mc8051_top.bld
.............\mc8051_top.cmd_log
.............\mc8051_top.drc
.............\mc8051_top.edn
.............\mc8051_top.fse
.............\mc8051_top.htm
.............\mc8051_top.ise_created
.............\mc8051_top.log
.............\mc8051_top.map
.............\mc8051_top.ncd
.............\mc8051_top.ncf
.............\mc8051_top.ngd
.............\mc8051_top.pad
.............\mc8051_top.par
.............\mc8051_top.pcf
.............\mc8051_top.prj
.............\mc8051_top.sap
.............\mc8051_top.sdc
.............\mc8051_top.srd
.............\mc8051_top.srm
.............\mc8051_top.srr
.............\mc8051_top.srs
.............\mc8051_top.tap
.............\mc8051_top.twr
.............\mc8051_top.twx
.............\mc8051_top.ucf
.............\mc8051_top.unroutes
.............\mc8051_top.ut
.............\mc8051_top.xpi
.............\mc8051_top_.vhd
.............\mc8051_top_compile.tcl
.............\mc8051_top_last_par.ncd