XX_UER_CBITS_OFFSET_MASK
vx_outb(chip, RUER, index & XX_UER_CBITS_OFFSET_MASK);
vx_outl(chip, RUER, index & XX_UER_CBITS_OFFSET_MASK);
vx_outb(chip, RUER, (val << 7) | (index & XX_UER_CBITS_OFFSET_MASK));
vx_outl(chip, RUER, (val << 7) | (index & XX_UER_CBITS_OFFSET_MASK));