CPU i8031 system. I can call "output.c"'s fuctions output_set_lamp_value(...) output_set_digit_value(...) etc in my game driver.
But how output_xxxx(...) callback in my game driver like:
DECLARE_WRITE8_MEMBER(duart_txa);
WRITE8_MEMBER(bigmario_state::duart_txa) { //printf("bigmario_state::duart_txa=%2X\n",data); m_serial_data_in = data;
m_maincpu->set_input_line(MCS51_RX_LINE, ASSERT_LINE); m_maincpu->set_input_line(MCS51_RX_LINE, CLEAR_LINE); };
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