[计] priority interrupt control unit

yōu xiān zhōng duàn kòng zhì dān yuán ㄧㄡ ㄒㄧㄢ ㄓㄨㄥ ㄉㄨㄢˋ ㄎㄨㄥˋ ㄓˋ ㄉㄢ ㄩㄢˊ