8051 Instruction Set Questions

MCQ

21.

The mnemonic, JNB is used to jump to the specified relative address only if

specified bit=1

specified bit=0

specified bit is non-recursive

none

Discussion

MCQ

22.

The type of operand that is not allowed to use in boolean instructions of 8051 is

direct register operands

indirect register operands

immediate bit

none

Discussion

MCQ

23.

In boolean instructions, the flag that is the only allowed destination operand for two operand instructions is

overflow flag

underflow flag

auxiliary flag

carry flag

Discussion