hunt now works correctly

src/mon_m65/mon_helper_syntax.s

@@ -0,0 +1,17 @@
+
+; Monitor helper code - syntax checking
+
+
+Syntax_Byte_AC:            ; ensure AC contains a 1-byte value
+
+	php
+	pha
+
+	lda  Long_AC+1
+	ora  Long_AC+2
+	ora  Long_AC+3
+	+bne Mon_Error         ; value above $FF
+
+	pla
+	plp
+	rts