added projects of lab exercise #3
pnr/de1_cntdn/makefile
0 → 100644
pnr/de1_cntupen/makefile
0 → 100644
sim/cnt4up/makefile
0 → 100644
sim/cnt4up/makefile.sources
0 → 100644
sim/cntdn/makefile
0 → 100644
sim/cntdn/makefile.sources
0 → 100644
sim/cntupen/makefile
0 → 100644
sim/cntupen/makefile.sources
0 → 100644
src/cnt4up_structure.vhd
0 → 100644