File list (Check if you may need any files):
butterfly\adder8b.vhd
.........\adder8b.vhd.bak
.........\andarith.vhd
.........\andarith.vhd.bak
.........\arictl.vhd
.........\arictl.vhd.bak
.........\butterfly.asm.rpt
.........\butterfly.done
.........\butterfly.dpf
.........\butterfly.fit.rpt
.........\butterfly.fit.smsg
.........\butterfly.fit.summary
.........\butterfly.flow.rpt
.........\butterfly.map.rpt
.........\butterfly.map.summary
.........\butterfly.pin
.........\butterfly.pof
.........\butterfly.qpf
.........\butterfly.qsf
.........\butterfly.qws
.........\butterfly.sim.rpt
.........\butterfly.sof
.........\butterfly.tan.rpt
.........\butterfly.tan.summary
.........\butterfly.vhd
.........\butterfly.vhd.bak
.........\butterfly.vwf
.........\db\butterfly.asm.qmsg
.........\..\butterfly.cbx.xml
.........\..\butterfly.cmp.bpm
.........\..\butterfly.cmp.cdb
.........\..\butterfly.cmp.ecobp
.........\..\butterfly.cmp.hdb
.........\..\butterfly.cmp.logdb
.........\..\butterfly.cmp.rdb
.........\..\butterfly.cmp.tdb
.........\..\butterfly.cmp0.ddb
.........\..\butterfly.cmp_bb.cdb
.........\..\butterfly.cmp_bb.hdb
.........\..\butterfly.cmp_bb.logdb
.........\..\butterfly.cmp_bb.rcf
.........\..\butterfly.dbp
.........\..\butterfly.db_info
.........\..\butterfly.eco.cdb
.........\..\butterfly.eds_overflow
.........\..\butterfly.fit.qmsg
.........\..\butterfly.hier_info
.........\..\butterfly.hif
.........\..\butterfly.map.bpm
.........\..\butterfly.map.cdb
.........\..\butterfly.map.ecobp
.........\..\butterfly.map.hdb
.........\..\butterfly.map.logdb
.........\..\butterfly.map.qmsg
.........\..\butterfly.map_bb.cdb
.........\..\butterfly.map_bb.hdb
.........\..\butterfly.map_bb.logdb
.........\..\butterfly.pre_map.cdb
.........\..\butterfly.pre_map.hdb
.........\..\butterfly.psp
.........\..\butterfly.pss
.........\..\butterfly.rpp.qmsg
.........\..\butterfly.rtlv.hdb
.........\..\butterfly.rtlv_sg.cdb
.........\..\butterfly.rtlv_sg_swap.cdb
.........\..\butterfly.sgate.rvd
.........\..\butterfly.sgate_sm.rvd
.........\..\butterfly.sgdiff.cdb
.........\..\butterfly.sgdiff.hdb
.........\..\butterfly.signalprobe.cdb
.........\..\butterfly.sim.cvwf
.........\..\butterfly.sim.hdb
.........\..\butterfly.sim.qmsg
.........\..\butterfly.sim.rdb
.........\..\butterfly.sld_design_entry.sci
.........\..\butterfly.sld_design_entry_dsc.sci
.........\..\butterfly.syn_hier_info
.........\..\butterfly.tan.qmsg
.........\..\butterfly.tis_db_list.ddb
.........\..\prev_cmp_butterfly.asm.qmsg
.........\..\prev_cmp_butterfly.fit.qmsg
.........\..\prev_cmp_butterfly.map.qmsg
.........\..\prev_cmp_butterfly.qmsg
.........\..\prev_cmp_butterfly.sim.qmsg
.........\..\prev_cmp_butterfly.tan.qmsg
.........\..\wed.wsf
.........\enable.vhd
.........\enable.vhd.bak
.........\fullsub1b.vhd
.........\fullsub1b.vhd.bak
.........\halfsub1b.vhd
.........\halfsub1b.vhd.bak
.........\multi8.vhd
.........\multi8.vhd.bak
.........\reg16b.vhd
.........\reg16b.vhd.bak
.........\sreg8b.vhd
.........\sreg8b.vhd.bak
.........\sub8b.vhd
.........\sub8b.vhd.bak