diff --git a/src/emu/cheat.c b/src/emu/cheat.c
index 57e1b23cdad..acba835716b 100644
--- a/src/emu/cheat.c
+++ b/src/emu/cheat.c
@@ -1706,6 +1706,11 @@ static astring *quote_astring_expression(astring *string, int isattribute)
 	astring_replacec(string, 0, " <", " lt ");
 	astring_replacec(string, 0, "< ", " lt ");
 	astring_replacec(string, 0, "<", " lt ");
+	
+	astring_replacec(string, 0, " << ", " lshift ");
+	astring_replacec(string, 0, " <<", " lshift ");
+	astring_replacec(string, 0, "<< ", " lshift ");
+	astring_replacec(string, 0, "<<", " lshift ");
 
 	return string;
 }
diff --git a/src/emu/debug/express.c b/src/emu/debug/express.c
index 98284bf4bda..867372fe505 100644
--- a/src/emu/debug/express.c
+++ b/src/emu/debug/express.c
@@ -887,6 +887,10 @@ static EXPRERR parse_string_into_tokens(const char *stringstart, parsed_expressi
 					SET_TOKEN_INFO(0, TOK_OPERATOR, TVL_BOR, TIN_PRECEDENCE_10);
 				else if (strcmp(buffer, "bxor") == 0)
 					SET_TOKEN_INFO(0, TOK_OPERATOR, TVL_BXOR, TIN_PRECEDENCE_9);
+				else if (strcmp(buffer, "lshift") == 0)
+					SET_TOKEN_INFO(0, TOK_OPERATOR, TVL_LSHIFT, TIN_PRECEDENCE_5);
+				else if (strcmp(buffer, "rshift") == 0)
+					SET_TOKEN_INFO(0, TOK_OPERATOR, TVL_RSHIFT, TIN_PRECEDENCE_5);		
 
 				/* process anything else as a number or string */
 				else