yacc_unused.exp

linux下基于c++的处理器仿真平台。具有处理器流水线

./yacc_unused.py:60: Symbol 'COMMA' used, but not defined as a token or a rule.
yacc: Symbol 'COMMA' is unreachable.
yacc: Symbol 'exprlist' is unreachable.
yacc.YaccError: Unable to construct parser.