若(R1)=30H，(A)=06H，(06H)=60H，(30H)=60H，(60H)=06H。试分析顺序执行下列程序段后上述各单元内容的变化：
MOV A，@R1
MOV @R1，60H
MOV 60H，A
MOV R1，#06H
SETB C
ADDC A，@R1

MOV A，@R1 ；(A)=60H MOV @R1，60H ；(30H)=06H MOV 60H，A ；(A)=60H MOV R1，#06H ；(R1)=06H SETB C ；CY=01H ADDC A，@R1 ；(A)=0C1H (R1)=06H，(A)=0C1H，(06H)=60H，(30H)=06H，(60H)=60H