static READ8_HANDLER( supercon_port3_r )
{
supercon_state *state = space->machine().driver_data<supercon_state>();
int i;
UINT8 key_data=0;
static const char *const status_lines[8] =
{ "STATUS_1", "STATUS_2", "STATUS_3", "STATUS_4", "STATUS_5", "STATUS_6", "STATUS_7", "STATUS_8" };
LOG(("Read from %04x \n",0x1E00));
/* remove last bit (only if it was not already set) */
if ( state->m_data_1F00 & LED_LINE_AH )
{
if (state->m_last_LED_value != state->m_LED_AH)
state->m_LED_AH=state->m_LED_AH & ~state->m_data_1E00;
}
else if ( state->m_data_1F00 & LED_LINE_ST)
{
if (state->m_last_LED_value != state->m_LED_ST)
state->m_LED_ST=state->m_LED_ST & ~state->m_data_1E00;
}
else if ( state->m_data_1F00 & LED_LINE_18 )
{
if (state->m_last_LED_value != state->m_LED_18)
state->m_LED_18=state->m_LED_18 & ~state->m_data_1E00;
}
LOG(("LED_18 from %02x \n",state->m_LED_18));
LOG(("LED_AH from %02x \n",state->m_LED_AH));
LOG(("LED_ST from %02x \n",state->m_LED_ST));
if (state->m_led_update) /*No LED Update if Port 1C00,1D00 was read */
update_leds(state);
state->m_remove_led_flag=TRUE;
state->m_led_update=TRUE;
state->m_LED_18=0;
state->m_LED_AH=0;
state->m_LED_ST=0;
/* Start */
if (!state->m_emu_started)
return 0xbf;
else
state->m_timer_update_irq->adjust( attotime::zero, 0, attotime::from_hz(598) ); //HACK adjust timer after start ???
/* Buttons */
i=get_first_bit(state->m_data_1E00);
if (i==NOT_VALID)
return 0xff;
key_data=input_port_read(space->machine(), status_lines[i]);
if (key_data != 0xc0)
{
LOG(("%s, key_data: %02x \n",status_lines[i],key_data));
/* Button: New Game -> initialize board */
if (i==0 && key_data==0x80)
{
set_board(state);
set_pieces(state);
state->m_emu_started=FALSE;
}
/* Button: Clear Board -> remove all pieces */
if (i==3 && key_data==0x80)
clear_pieces(state);
if (key_data != 0xff )
return key_data;
}
return 0xc0;
}
void clear() {
clear_pieces();
}
