anchor.diff:  	: cond_expr (("and"^ | "or"^) cond_expr)*
   	;
   
  -exp: log_expr;
  -
  -
  -variable
  -	: 
  -		( REG_ID^
  -		| "r"^ LSQUARE! exp RSQUARE!
  -		| "m"^ LSQUARE! exp RSQUARE!
  -		| NAME^
  -		) 
  -		( AT^ LSQUARE! exp COLON! exp RSQUARE! )*
  -	;
  -
  -value
  -	: (PRIME^)? variable;
  -
  -endianness: "ENDIANNESS" ( "BIG" | "LITTLE" );
  -
  -fastlist: "FAST" fastentry (COMMA fastentry)*;
  -
  -fastentry: NAME INDEX NAME;
  +expr: log_expr;
  +
  +endianness: "ENDIANNESS"^ ( "BIG" | "LITTLE" );
  +
  +fastlist: "FAST"^ fastentry (COMMA! fastentry)*;
  +
  +fastentry: NAME INDEX^ NAME;
   
   
   class sslTreeParser extends TreeParser;
  
positive.code: // bit extraction, sign extension, cast
  postfix_expr
  	: primary_expr 
  		( (AT) => AT^ LSQUARE! exp COLON! exp RSQUARE!
  		| (S_E) => S_E^
  		| (LCURLY num RCURLY) => LCURLY^ num RCURLY!
  		)*
  
negative.code: 	;
  
  exprstr_term
  	: QUOTE^ expr QUOTE!
  	;
  
  instr
  