Reserved words
Specification
ABS ACCESS AFTER ALIAS ALL AND ARCHITECTURE ARRAY ASSERT ATTRIBUTE BEGIN BLOCK BODY BUFFER BUS CASE COMPONENT CONFIGURATION CONSTANT DISCONNECT DOWNTO ELSE ELSIF END ENTITY EXIT FILE FOR FUNCTION GENERATE GENERIC GROUP GUARDED IF IMPURE IN INERTIAL INOUT IS LABEL LIBRARY LINKAGE LITERAL LOOP MAP MOD NAND NEW NEXT NOR NOT NULL OF ON OPEN OR OTHERS OUT PACKAGE PORT POSTPONED PROCEDURE PROCESS PURE RANGE RECORD REGISTER REM REPORT ROL ROR RETURN SELECT SEVERITY SIGNAL SHARED SLA SLL SRA SRL SUBTYPE THEN TO TRANSPORT TYPE UNAFFECTED UNITS UNTIL USE VARIABLE WAIT WHEN WHILE WITH XNOR XOR
Comments
A reserved word must not be used as an explicitly declared identifier.