char (*pollchar)(void);
void (*putchar)(char c) __reentrant;
void (*flush)(void);
+ uint8_t echo;
};
+extern __xdata struct ao_stdio ao_stdios[];
extern __data int8_t ao_cur_stdio;
extern __data int8_t ao_num_stdios;
extern __xdata uint8_t ao_stdin_ready;
+uint8_t
+ao_echo(void);
+
void
ao_add_stdio(char (*pollchar)(void),
void (*putchar)(char) __reentrant,