Library VHDL

Vhdl programming language is also known library package / library that serves to facilitate prorammer to complete its work as contained in the library functions and data types that have been previously defined for use over and over again. In vhdl composed several libraries, including ieee, std, and other work. In the library there is a sub-tree is called as a package, including :

LIBRARY IEEE :
- math_real
- numeric_bit
- numeric_std
- std_logic_1164
- std_logic_arith
- std_logic_signed
- std_logic_unsigned
- vital_timing

LIBRARY STD :
- standard
- textio