v3_0.vhd

来自「台湾全华科技VHDL教材实例」· VHDL 代码 · 共 11 行

package distance is

	type rangetype is range -2147483647 to 2147483647 
		units 
			mm;
			m = 1000 mm;
			km = 1000 m;
		end units;

end distance;