IEEE Std 1164-1993 IEEE Standard Multivalue Logic System for VHDL Model Interoperability (Std_logic_1164) Sponsor Design Automation Technical Committee of the IEEE Computer Society Approved March 18, 1993 IEEE Standards Board Correction Sheet Issued September 27, 1995 The following correction should be made to the standard: Page 3, line 2 should read: - FUNCTION “xnor“ ( l : std_ulogic; r : std_ulogic ) RETURN UX01; September 27, 1995 SH16097 IEEE Standards Home Page - Search - E-mail to Staff Copyright 1997 IEEE This page is maintained by IEEE Standards Systems/Network Staff.