sisusb_read_memio_byte
ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_MEM,
ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, data);
ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, &tmp);
ret |= sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, port + 1, &tmp);
#define GETREG(r, d) sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO, r, d)
#define READB(a, d) sisusb_read_memio_byte(sisusb, SISUSB_TYPE_MEM, a, d)
if (sisusb_read_memio_byte(sisusb, SISUSB_TYPE_IO,