Q. The instruction, ADD A, #100 performs

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Q. In which of these addressing modes, a constant is specified in the instruction, after the opcode byte?

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Q. The only memory which can be accessed using indexed addressing mode is

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Q. The data address of look-up table is found by adding the contents of

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Q. Which of the following is not an instruction of 8051 instructions?

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Q. The logical instruction that affects the carry flag during its execution is

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Q. In logical instructions, the immediate data can be an operand for

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Q. If the most significant bit of relative address byte is 1, then the short jump instruction is

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Q. The first byte of an absolute jump instruction consists of

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Q. The third byte of the long jump instruction is

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Q. The absolute jump instruction is intended mainly for a jump within a memory space of

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Q. The LJMP instruction is very useful in programming in the external code memory space of

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Q. Which of the following is not an unconditional control transfer instruction?

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Q. The conditional control transfer instructions use

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Q. Which of the following is not a conditional control transfer instruction?

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Q. The mnemonic used to perform a subtraction of source with an 8-bit data and jumps to specified relative address if subtraction is non-zero is

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

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

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

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Q. Which of the following is not one of the SFR addresses of the ports of 8051?

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