nubus_readw
return swab16(nubus_readw(dev->base_addr + DATA_PORT));
return swab16(nubus_readw(dev->mem_start + portno));
sig = nubus_readw(ioaddr + DATA_PORT);
while ((status = swab16(nubus_readw(dev->base_addr + ISQ_PORT)))) {
#define SONIC_READ(reg) (nubus_readw(dev->base_addr + (reg * 4) \