按键控制的状态机代码

根据按键控制状态机状态转换，内含仿真波形文件

key_state
备份
incremental_db
db
key_read.bsf
key_read.vhd
key_read.vhd.bak
key_state.asm.rpt
key_state.bdf
key_state.done
key_state.dpf
key_state.fit.rpt
key_state.fit.smsg
key_state.fit.summary
key_state.flow.rpt
key_state.map.rpt
key_state.map.summary
key_state.pin
key_state.pof
key_state.qpf
key_state.qsf
key_state.qws
key_state.sof
key_state.sta.rpt
key_state.sta.summary
key_state.tan.rpt
key_state.tan.summary
key_state_dl_38.bsf
key_state_dl_38.vhd
key_state_dl_38.vhd.bak
seg.bsf
seg.v