DCR_UIC_PR
mtdcr(DCR_UIC1_BASE + DCR_UIC_PR,
mfdcr(DCR_UIC1_BASE + DCR_UIC_PR) & ~0x80000000);
mtdcr(DCR_UIC3_BASE + DCR_UIC_PR,
mfdcr(DCR_UIC3_BASE + DCR_UIC_PR) & ~0x000ff000);
(unsigned int)mfdcr((base) + DCR_UIC_PR), \