EIOINTC_ENABLE_START
case EIOINTC_ENABLE_START ... EIOINTC_ENABLE_END:
index = (offset - EIOINTC_ENABLE_START) >> 3;
case EIOINTC_ENABLE_START ... EIOINTC_ENABLE_END:
index = (offset - EIOINTC_ENABLE_START) >> 3;
case EIOINTC_ENABLE_START ... EIOINTC_ENABLE_END:
offset = (addr - EIOINTC_ENABLE_START) / 4;