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
查看答案
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. ( )
Instruction “MOV R0, R5” is a valid 8051 instruction. ( )