Based on FPGA, I implement a caculator.

caculator\caculate.vhd
.........\caculate.vhd.bak
.........\caculator.asm.rpt
.........\caculator.done
.........\caculator.dpf
.........\caculator.fit.rpt
.........\caculator.fit.smsg
.........\caculator.fit.summary
.........\caculator.flow.rpt
.........\caculator.map.rpt
.........\caculator.map.summary
.........\caculator.pin
.........\caculator.pof
.........\caculator.qpf
.........\caculator.qsf
.........\caculator.qws
.........\caculator.sim.rpt
.........\caculator.tan.rpt
.........\caculator.tan.summary
.........\caculator.vhd
.........\caculator.vhd.bak
.........\caculator.vwf
.........\db\add_sub_09c.tdf
.........\..\add_sub_15c.tdf
.........\..\add_sub_19c.tdf
.........\..\add_sub_29c.tdf
.........\..\add_sub_39c.tdf
.........\..\add_sub_45c.tdf
.........\..\add_sub_49c.tdf
.........\..\add_sub_59c.tdf
.........\..\add_sub_69c.tdf
.........\..\add_sub_79c.tdf
.........\..\add_sub_89c.tdf
.........\..\add_sub_e7c.tdf
.........\..\add_sub_f7c.tdf
.........\..\add_sub_g3c.tdf
.........\..\add_sub_g7c.tdf
.........\..\add_sub_h7c.tdf
.........\..\add_sub_i7c.tdf
.........\..\add_sub_j3c.tdf
.........\..\add_sub_j7c.tdf
.........\..\add_sub_k7c.tdf
.........\..\add_sub_l7c.tdf
.........\..\add_sub_m7c.tdf
.........\..\add_sub_t4c.tdf
.........\..\add_sub_u4c.tdf
.........\..\add_sub_u8c.tdf
.........\..\add_sub_v4c.tdf
.........\..\add_sub_v8c.tdf
.........\..\alt_u_div_0oe.tdf
.........\..\alt_u_div_1oe.tdf
.........\..\alt_u_div_2oe.tdf
.........\..\alt_u_div_3le.tdf
.........\..\alt_u_div_5le.tdf
.........\..\alt_u_div_5oe.tdf
.........\..\alt_u_div_6le.tdf
.........\..\alt_u_div_7oe.tdf
.........\..\alt_u_div_9le.tdf
.........\..\alt_u_div_ble.tdf
.........\..\alt_u_div_cle.tdf
.........\..\alt_u_div_dle.tdf
.........\..\alt_u_div_doe.tdf
.........\..\alt_u_div_eoe.tdf
.........\..\alt_u_div_fie.tdf
.........\..\alt_u_div_hle.tdf
.........\..\alt_u_div_lie.tdf
.........\..\alt_u_div_tne.tdf
.........\..\alt_u_div_vne.tdf
.........\..\caculator.asm.qmsg
.........\..\caculator.asm_labs.ddb
.........\..\caculator.cbx.xml
.........\..\caculator.cmp.cdb
.........\..\caculator.cmp.hdb
.........\..\caculator.cmp.logdb
.........\..\caculator.cmp.rdb
.........\..\caculator.cmp.tdb
.........\..\caculator.cmp0.ddb
.........\..\caculator.dbp
.........\..\caculator.db_info
.........\..\caculator.eco.cdb
.........\..\caculator.eds_overflow
.........\..\caculator.fit.qmsg
.........\..\caculator.hier_info
.........\..\caculator.hif
.........\..\caculator.map.cdb
.........\..\caculator.map.hdb
.........\..\caculator.map.logdb
.........\..\caculator.map.qmsg
.........\..\caculator.pre_map.cdb
.........\..\caculator.pre_map.hdb
.........\..\caculator.psp
.........\..\caculator.pss
.........\..\caculator.rtlv.hdb
.........\..\caculator.rtlv_sg.cdb
.........\..\caculator.rtlv_sg_swap.cdb
.........\..\caculator.sgdiff.cdb
.........\..\caculator.sgdiff.hdb
.........\..\caculator.signalprobe.cdb
.........\..\caculator.sim.cvwf
.........\..\caculator.sim.hdb

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