//donde llamo a la funcion
   printf("dc = *\n");
   dc = (unsigned char) ( int_use_intr_flag ? 0 : CB_DC_NIEN );
   // reset Bus Master Error bit
   printf("Bus Master Error\n");
   pio_writeBusMstrStatus( BM_SR_MASK_ERR );
   // assume there are no devices
   printf("No devices\n");
   reg_config_info[0] = REG_CONFIG_TYPE_NONE;
   reg_config_info[1] = REG_CONFIG_TYPE_NONE;
   // set up Device Control register, error aqui
   printf("Device Control Register\n");
   pio_outbyte( CB_DC, dc );
//funcion que da el problema
static void pio_outbyte( int addr, unsigned char data )
{
   //!!! write an 8-bit ATA register
   *pio_reg_addrs[ addr ] = data;
}