at89c
at89c(s)51(52)寻址方式与指令系统(编辑修改稿)
址方式，实现： 源操作数 目的操作数 MOV A, @Ri MOV A, direct MOV A, data Rn MOV Rn, A MOV Rn, data MOV Rn, direct direct MOV direct, A MOV direct, data MOV direct, direct MOV direct, Rn MOV direct, @Ri @Ri MOV @Ri,