Beispiel #1
0
static WRITE8_HANDLER( speech_control_w )
{
    _88games_state *state = space->machine().driver_data<_88games_state>();
    device_t *upd;

    state->m_speech_chip = (data & 4) ? 1 : 0;
    upd = state->m_speech_chip ? state->m_upd_2 : state->m_upd_1;

    upd7759_reset_w(upd, data & 2);
    upd7759_start_w(upd, data & 1);
}
Beispiel #2
0
static WRITE8_HANDLER( sound_io_w )
{
	sound_port_latch[offset] = data;

	switch (offset)
	{
		case 0x01:
		{
			break;
		}
		case 0x03:
		{
			const device_config *upd = devtag_get_device(space->machine, "upd7759");
			upd7759_set_bank_base(upd, (data & 0x4) ? 0x20000 : 0);
			upd7759_reset_w(upd, (data & 0x10) ? 0 : 1);
			break;
		}
	}
}
Beispiel #3
0
static WRITE8_HANDLER( combasc_voice_reset_w )
{
    upd7759_reset_w(0,data & 1);
}
Beispiel #4
0
static WRITE8_DEVICE_HANDLER( D7759_upd_reset_w )
{
	upd7759_reset_w(device, data & 0x80);
}