first import of dhwk.

[raggedstone] / dhwk / source / Parity_4.vhd

diff --git a/dhwk/source/Parity_4.vhd b/dhwk/source/Parity_4.vhd
new file mode 100644 (file)
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+-- J.STELZNER\r
+-- INFORMATIK-3 LABOR\r
+-- 23.08.2006\r
+-- File: PARITY_4.VHD\r
+\r
+library ieee;\r
+use ieee.std_logic_1164.all;\r
+\r
+entity PARITY_4 is\r
+       port\r
+       (\r
+       PAR_IN  :in             std_logic_vector(3 downto 0);   \r
+       PAR_OUT :out    std_logic\r
+       );\r
+end entity PARITY_4 ; \r
+\r
+architecture PARITY_4_DESIGN of PARITY_4 is\r
+\r
+begin\r
+\r
+       PAR_OUT <= PAR_IN(3) xor PAR_IN(2) xor PAR_IN(1) xor PAR_IN(0) ;\r
+\r
+end architecture PARITY_4_DESIGN;\r