moved vhdl testbench files into separate directory vhdl under sim

des/sim/makefile

@@ -1,38 +0,0 @@
-# ======================================================================
-# DES encryption/decryption
-# algorithm according to FIPS 46-3 specification
-# Copyright (C) 2011 Torsten Meissner
-#-----------------------------------------------------------------------
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
-# ======================================================================
-
-
-all : sim wave
-
-sim : tb_des.ghw
-
-
-tb_des.ghw : ../rtl/*.vhd tb_des.vhd
-	ghdl -a ../rtl/des_pkg.vhd ../rtl/des.vhd tb_des.vhd
-	ghdl -e tb_des
-	ghdl -r tb_des --wave=tb_des.ghw --assert-level=error --stop-time=11us
-
-wave : tb_des.ghw
-	gtkwave -T tb_des.tcl tb_des.ghw
-	
-clean :
-	echo "# cleaning simulation files"
-	rm -f tb_des.ghw
-	rm -f work*.cf