操作地址寄存器

[计] operation address register, operational address register

cāo zuò dì zhǐ jì cún qì ㄘㄠ ㄗㄨㄛˋ ㄉㄧˋ ㄓˇ ㄐㄧˋ ㄘㄨㄣˊ ㄑㄧˋ