示例#1
0
UINT8 a2bus_cffa2000_device::read_c0nx(address_space &space, UINT8 offset)
{
	switch (offset)
	{
		case 0:
			return m_lastdata>>8;

		case 3:
			m_writeprotect = false;
			break;

		case 4:
			m_writeprotect = true;
			break;

		case 8:
			m_lastdata = ide_controller_r(m_ide, 0x1f0+offset-8, 2);
			return m_lastdata & 0xff;

		case 9:
		case 0xa:
		case 0xb:
		case 0xc:
		case 0xd:
		case 0xe:
		case 0xf:
			return ide_controller_r(m_ide, 0x1f0+offset-8, 1);
	}

	return 0xff;
}
示例#2
0
文件: a2cffa.c 项目: poliva/mame-rr
/*-------------------------------------------------
    a2cffa_r - device read function
-------------------------------------------------*/

READ8_DEVICE_HANDLER(a2cffa_r)
{
	a2cffa_token *token = get_token(device);

	if (offset == 0)
	{
		return token->lastdata>>8;
	}
	else if (offset == 8)
	{
		token->lastdata = ide_controller_r(device->machine().devicelist().find("ide"), 0x1f0+offset-8, 2);
		return token->lastdata & 0xff;
	}
	else if (offset > 8)
	{
		return ide_controller_r(device->machine().devicelist().find("ide"), 0x1f0+offset-8, 1);
	}

	return 0xff;
}



/*-------------------------------------------------
    a2cffa_w - device write function
-------------------------------------------------*/