it shows 4-bit full adder with 7-segment and you can start vhdl with this code

fulladder\.lso
.........\code.ucf
.........\fourbitfulladder.prj
.........\fourbitfulladder.stx
.........\fourbitfulladder.vhd
.........\fourbitfulladder.xst
.........\fourbitfulladder_isim_beh.exe
.........\fourbitfulladder_isim_beh1.wdb
.........\fourbitfulladder_stx_beh.prj
.........\fourbitfulladder_summary.html
.........\fourbitfulladder_vhdl.prj
.........\fulladder.gise
.........\fulladder.vhd
.........\fulladder.xise
.........\fulladder_beh.prj
.........\fulladder_isim_beh.exe
.........\fulladder_isim_beh.wdb
.........\fulladder_stx_beh.prj
.........\fulladder_summary.html
.........\fuse.log
.........\fuse.xmsgs
.........\fuseRelaunch.cmd
.........\iseconfig\fourbitfulladder.xreport
.........\.........\fulladder.projectmgr
.........\.........\fulladder.xreport
.........\.........\sevensegment.xreport
.........\isim.log
.........\netgen\synthesis\sevensegment_synthesis.nlf
.........\......\.........\sevensegment_synthesis.vhd
.........\p.ucf
.........\pin.ucf
.........\pinu.ucf
.........\ppp.ucf
.........\seven.vhd
.........\sevensegment.bgn
.........\sevensegment.bit
.........\sevensegment.bld
.........\sevensegment.cmd_log
.........\sevensegment.drc
.........\sevensegment.lso
.........\sevensegment.ncd
.........\sevensegment.ngc
.........\sevensegment.ngd
.........\sevensegment.ngr
.........\sevensegment.pad
.........\sevensegment.par
.........\sevensegment.pcf
.........\sevensegment.prj
.........\sevensegment.ptwx
.........\sevensegment.stx
.........\sevensegment.syr
.........\sevensegment.twr
.........\sevensegment.twx
.........\sevensegment.unroutes
.........\sevensegment.ut
.........\sevensegment.vhd
.........\sevensegment.xpi
.........\sevensegment.xst
.........\sevensegment_bitgen.xwbt
.........\sevensegment_envsettings.html
.........\sevensegment_guide.ncd
.........\sevensegment_map.map
.........\sevensegment_map.mrp
.........\sevensegment_map.ncd
.........\sevensegment_map.ngm
.........\sevensegment_map.xrpt
.........\sevensegment_ngdbuild.xrpt
.........\sevensegment_pad.csv
.........\sevensegment_pad.txt
.........\sevensegment_par.xrpt
.........\sevensegment_stx_beh.prj
.........\sevensegment_summary.html
.........\sevensegment_summary.xml
.........\sevensegment_usage.xml
.........\sevensegment_vhdl.prj
.........\sevensegment_xst.xrpt
.........\seven_beh.prj
.........\seven_stx_beh.prj
.........\usage_statistics_webtalk.html
.........\webtalk.log
.........\webtalk_pn.xml
.........\xlnx_auto_0_xdb\cst.xbcd
.........\.st\work\hdllib.ref
.........\...\....\hdpdeps.ref
.........\...\....\sub00\vhpl00.vho
.........\...\....\.....\vhpl01.vho
.........\...\....\.....\vhpl02.vho
.........\...\....\.....\vhpl03.vho
.........\...\....\.....\vhpl04.vho
.........\...\....\.....\vhpl05.vho
.........\...\....\.....\vhpl06.vho
.........\...\....\.....\vhpl07.vho
.........\_ngo\netlist.lst
.........\.xmsgs\bitgen.xmsgs
.........\......\map.xmsgs
.........\......\netgen.xmsgs
.........\......\ngdbuild.xmsgs
.........\......\par.xmsgs
.........\......\pn_parser.xmsgs
.........\......\trce.xmsgs

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