Description: Decimal subtraction use basys2 reversible counter, SW1 DIP switch key for automatic reversible subtraction function keys, when SW1 is HIGH, the counter automatically reversible die ten down counting function, ie almost simultaneously displayed on the four seven-segment LED 0-1-2-3-4- ... 9-8-7- ... 0-1 ... die ten automatic reversible down counting results when SW1 is LOW, the counter by the DIP switch key SW0 choices were d plus down counting function. Ten die counting result that when SW0 is HIGH, the counter counts up to achieve mold ten functions, namely almost simultaneously displayed on the four seven-segment LED 0-1-2-3-4- ... 9 0-1 of ... when SW0 is LOW, the counter counts down ten function realization mode, ie almost simultaneously displayed on the four seven-segment LED 9-8-7- ...-1-0- ... 9-8-7 ... the mold count down ten the results.
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File list (Check if you may need any files):
rad10\iseconfig\rad10.projectmgr
.....\.........\rad10.xreport
.....\pa.fromNetlist.tcl
.....\planAhead.ngc2edif.log
.....\planAhead_pid2740.debug
.....\planAhead_pid3152.debug
.....\planAhead_pid3860.debug
.....\..........run_1\planAhead.jou
.....\...............\planAhead.log
.....\...............\planAhead_run.log
.....\..............2\planAhead.jou
.....\...............\planAhead.log
.....\...............\planAhead_run.log
.....\...............\rad10.data\cache\rad10_ngc_zx.edif
.....\...............\..........\.onstrs_1\fileset.xml
.....\...............\..........\runs\impl_1.psg
.....\...............\..........\....\runs.xml
.....\...............\..........\sim_1\fileset.xml
.....\...............\..........\.ources_1\fileset.xml
.....\...............\..........\wt\project.wpc
.....\...............\..........\..\webtalk_pa.xml
.....\...............\rad10.ppr
.....\..............3\planAhead.jou
.....\...............\planAhead.log
.....\...............\planAhead_run.log
.....\...............\rad10.data\cache\rad10_ngc_zx.edif
.....\...............\..........\.onstrs_1\designprops.xml
.....\...............\..........\.........\fileset.xml
.....\...............\..........\.........\usercols.xml
.....\...............\..........\runs\impl_1.psg
.....\...............\..........\....\runs.xml
.....\...............\..........\sim_1\fileset.xml
.....\...............\..........\.ources_1\chipscope.xml
.....\...............\..........\.........\fileset.xml
.....\...............\..........\.........\ports.xml
.....\...............\..........\wt\java_command_handlers.wdf
.....\...............\..........\..\project.wpc
.....\...............\..........\..\webtalk_pa.xml
.....\...............\rad10.ppr
.....\rad10.bgn
.....\rad10.bit
.....\rad10.bld
.....\rad10.cmd_log
.....\rad10.drc
.....\rad10.gise
.....\rad10.lso
.....\rad10.ncd
.....\rad10.ngc
.....\rad10.ngd
.....\rad10.ngr
.....\rad10.pad
.....\rad10.par
.....\rad10.pcf
.....\rad10.prj
.....\rad10.ptwx
.....\rad10.stx
.....\rad10.syr
.....\rad10.twr
.....\rad10.twx
.....\rad10.ucf
.....\rad10.unroutes
.....\rad10.ut
.....\rad10.v
.....\rad10.xise
.....\rad10.xpi
.....\rad10.xst
.....\rad10_bitgen.xwbt
.....\rad10_envsettings.html
.....\rad10_guide.ncd
.....\rad10_map.map
.....\rad10_map.mrp
.....\rad10_map.ncd
.....\rad10_map.ngm
.....\rad10_map.xrpt
.....\rad10_ngdbuild.xrpt
.....\rad10_pad.csv
.....\rad10_pad.txt
.....\rad10_par.xrpt
.....\rad10_summary.html
.....\rad10_summary.xml
.....\rad10_usage.xml
.....\rad10_xst.xrpt
.....\usage_statistics_webtalk.html
.....\webtalk.log
.....\webtalk_pn.xml
.....\xlnx_auto_0_xdb\cst.xbcd
.....\.st\work\hdllib.ref
.....\...\....\vlg18\rad10.bin
.....\...\....\work.sdbl
.....\...\....\work.sdbx
.....\_ngo\netlist.lst
.....\.xmsgs\bitgen.xmsgs
.....\......\map.xmsgs
.....\......\ngdbuild.xmsgs
.....\......\par.xmsgs
.....\......\pn_parser.xmsgs
.....\......\trce.xmsgs
.....\......\xst.xmsgs
.....\xst\dump.xst\rad10.prj\ngx\notopt
.....\...\........\.........\...\opt
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