BUF_INPUT
BUF_INPUT(ESC, '$', ')', 'G');
BUF_INPUT(ESC, '$', '*', 'H');
BUF_INPUT(ESC, 0x4E, st->keepc[2] & MSB_OFF, st->keepc[3] & MSB_OFF);
BUF_INPUT(ESC, '$', '+', st->SS3char);
BUF_INPUT(ESC, 0x4F, st->keepc[2] & MSB_OFF, st->keepc[3] & MSB_OFF);