initial support for Mega65 extra ROM

c64/basic/commands/cmd_run.s

@@ -1,3 +1,6 @@
+#if ROM_LAYOUT_STD || (ROM_LAYOUT_M65 && SEGMENT_BASIC_0)
+
+
 cmd_run:
 	// RUN clears all variables
 	jsr basic_do_clr
@@ -15,8 +18,11 @@ cmd_goto:
 	jsr basic_parse_line_number
 	jsr basic_find_line
 	bcc !+
-	// Line doesn't exist, so report error
+	// Line does not exist, so report error
 	jmp do_UNDEFD_STATEMENT_error
 !:
 	// Run it!
 	jmp basic_execute_from_current_line
+
+
+#endif // ROM layout