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Computer Science Engineering (CSE) Exam  >  Computer Science Engineering (CSE) Tests  >  Test: Addressing Modes Of 8051 - Computer Science Engineering (CSE) MCQ

Test: Addressing Modes Of 8051 - Computer Science Engineering (CSE) MCQ


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10 Questions MCQ Test - Test: Addressing Modes Of 8051

Test: Addressing Modes Of 8051 for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Test: Addressing Modes Of 8051 questions and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus.The Test: Addressing Modes Of 8051 MCQs are made for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Addressing Modes Of 8051 below.
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Test: Addressing Modes Of 8051 - Question 1
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 Which of the following is not an addressing mode of 8051?

Detailed Solution for Test: Addressing Modes Of 8051 - Question 1

The six addressing modes of 8051 are
1. Direct addressing
2. Indirect addressing
3. Register instructions
4. Register specific(Register Implicit) instructions
5. Immediate mode
6. Indexed addressing.

Test: Addressing Modes Of 8051 - Question 2
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The symbol, ‘addr 16’ represents the 16-bit address which is used by the instructions to specify the

Detailed Solution for Test: Addressing Modes Of 8051 - Question 2

 The symbol, ‘addr 16’ represents the 16-bit destination address which is used by the LCALL or LJMP instruction to specify the call or jump destination address, within 64 Kbytes program memory.

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Test: Addressing Modes Of 8051 - Question 3
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The storage of addresses that can be directly accessed is

Detailed Solution for Test: Addressing Modes Of 8051 - Question 3

Only internal data RAM and SFRS can be directly addressed in direct addressing mode.

Test: Addressing Modes Of 8051 - Question 4
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The address register for storing the 16-bit addresses can only be
Detailed Solution for Test: Addressing Modes Of 8051 - Question 4

The address register for storing the 16-bit addresses can only be data pointer.

Test: Addressing Modes Of 8051 - Question 5
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 The address register for storing the 8-bit addresses can be
Detailed Solution for Test: Addressing Modes Of 8051 - Question 5

The registers R0 and R1 of the selected bank of registers or stack pointer can be used as address registers for storing the 8-bit addresses.

Test: Addressing Modes Of 8051 - Question 6
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The instruction, ADD A, R7 is an example of
Detailed Solution for Test: Addressing Modes Of 8051 - Question 6

In register instructions addressing mode, operands are stored in the registers R0-R7 of the selected register bank. One of these registers is specified in the instruction.

Test: Addressing Modes Of 8051 - Question 7
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The addressing mode, in which the instructions has no source and destination operands is
Detailed Solution for Test: Addressing Modes Of 8051 - Question 7

In register specific instructions addressing mode, the instructions donot have source and destination operands. Some of the instructions always operate only on a specific register.

Test: Addressing Modes Of 8051 - Question 8
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 The instruction, RLA performs
Detailed Solution for Test: Addressing Modes Of 8051 - Question 8

The instruction, RLA rotates accumulator left.

Test: Addressing Modes Of 8051 - Question 9
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The instruction, ADD A, #100 performs
Detailed Solution for Test: Addressing Modes Of 8051 - Question 9

Immediate data 100(decimal) is added to the contents of accumulator.

Test: Addressing Modes Of 8051 - Question 10
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In which of these addressing modes, a constant is specified in the instruction, after the opcode byte?
Detailed Solution for Test: Addressing Modes Of 8051 - Question 10

In immediate mode, an immediate data, i.e. a constant is specified in the instruction, after the opcode byte.

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