题目内容

If (20H)=00H and ()=1, the contents of internal RAM address 20H after execution of following instructions will be ( ) ORL C, 00H MOV 00H, C

A. 00H
B. 01H
C. 20H
D. FFH

查看答案

搜索结果不匹配？点我反馈

更多问题

If (20H)=FFH and ()=1, the contents of internal RAM address 20H after execution of following instructions will be ( ) ANL C, 00H CPL C MOV 00H, C

A. 00H
B. 01H
C. FFH
D. FEH

Instruction “MOV 28H, @R2” is a valid 8051 instruction. ( )

Instruction “CLR R0” is a valid 8051 instruction. ( )

Instruction “CPL R5” is a valid 8051 instruction. ( )