void cs4031_device::config_data_w(uint8_t data)
{
if (m_address_valid)
{
LOGREGISTER("cs4031_device: write %s = %02x\n", m_register_names[m_address], data);
// update register with new data
m_registers[m_address] = data;
// execute command
switch (m_address)
{
case DMA_WAIT_STATE:
update_dma_clock();
break;
case 0x05: break;
case 0x06: break;
case 0x07: break;
case 0x08: break;
case 0x09: break;
case DMA_CLOCK:
update_dma_clock();
break;
case 0x10: break;
case 0x11: break;
case 0x12: break;
case 0x13: break;
case 0x14: break;
case 0x15: break;
case 0x16: break;
case 0x17: break;
case 0x18: break;
case SHADOW_READ:
update_read_regions();
break;
case SHADOW_WRITE:
update_write_regions();
break;
case ROMCS:
update_read_regions();
update_write_regions();
break;
case SOFT_RESET_AND_GATEA20:
update_a20m();
break;
}
}
// after a write the selected address needs to be reset
m_address_valid = false;
}
void cs4031_device::device_reset()
{
// setup default values
memset(&m_registers, 0x00, sizeof(m_registers));
m_registers[ROMCS] = 0x60;
// update rom/ram regions below 1mb
update_read_regions();
update_write_regions();
}
void cs4031_device::device_reset()
{
// setup default values
memset(&m_registers, 0x00, sizeof(m_registers));
m_registers[ROMCS] = 0x60;
// update rom/ram regions below 1mb
update_read_regions();
update_write_regions();
// initialize dma controller clocks
update_dma_clock();
}