CORB_DCC_DIGEN
digital = (digital & 0xff) | CORB_DCC_DIGEN;
v = (v & ~CORB_DCC_DIGEN) & 0xff;
mc->un.mask = result & 0xff & ~(CORB_DCC_DIGEN | CORB_DCC_NAUDIO);
result &= CORB_DCC_DIGEN | CORB_DCC_NAUDIO;
result |= mc->un.mask & 0xff & ~CORB_DCC_DIGEN;