MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Microprocessors knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
WHILE_EXECUTING_THE_PUSH*A_INSTRUCTION,_THE_STACK_POINTER_IS_DECREMENTED_BY?$ |
| A. | 1 bit |
| B. | 2 bits |
| C. | 4 bits |
| D. | 16 bits |
| Answer» C. 4 bits | |
| 2. |
The instruction that multiplies the content of AL with a signed immediate operand is$ |
| A. | MUL |
| B. | SMUL |
| C. | IMUL |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 3. |
The_statement_that_is_true_for_the_instruction_POP*A_is$ |
| A. | flags are unaffected |
| B. | no operands are required |
| C. | exceptions generated are same as that of PUSH*A |
| D. | all of the mentioned |
| Answer» E. | |
| 4. |
The_instruction_that_represents_the_‘rotate_source,_count’_is$ |
| A. | RCL |
| B. | RCR |
| C. | ROR |
| D. | All of the mentioned |
| Answer» E. | |
| 5. |
The instruction that pushes the general purpose registers, pointer and index registers on to the stack i? |
| A. | POPF |
| B. | PUSH Imd |
| C. | PUSH*A |
| D. | PUSHF |
| Answer» D. PUSHF | |
| 6. |
The representation of 8-bit or 16-bit signed binary operands using 2’s complement is a data type of$ |
| A. | Ordinal |
| B. | ASCII |
| C. | Packed BCD |
| D. | integer |
| Answer» E. | |
| 7. |
Which of the following is not a data type of 80286? |
| A. | Ordinal or unsigned |
| B. | ASCII |
| C. | Packed BCD |
| D. | None of the mentioned |
| Answer» E. | |
| 8. |
The address of a location of the operand is calculated by adding the contents of any of the base registers, with the contents of any of index registers in |
| A. | based indexed mode with displacement |
| B. | based indexed mode |
| C. | based mode |
| D. | indexed mode |
| Answer» C. based mode | |
| 9. |
In which of the following addressing mode, the offset is obtained by adding displacement, with the contents of SI? |
| A. | direct mode |
| B. | register mode |
| C. | based mode |
| D. | indexed mode |
| Answer» E. | |
| 10. |
In which of the following addressing mode, the offset is obtained by adding displacement and contents of one of the base registers? |
| A. | direct mode |
| B. | register mode |
| C. | based mode |
| D. | indexed mode |
| Answer» D. indexed mode | |
| 11. |
In register address mode, the operand is stored in |
| A. | 8-bit general purpose register |
| B. | 16-bit general purpose register |
| C. | si or di |
| D. | all of the mentioned |
| Answer» E. | |
| 12. |
In which of these modes, the immediate operand is included in the instruction itself? |
| A. | register operand mode |
| B. | immediate operand mode |
| C. | register and immediate operand mode |
| D. | none of the mentioned |
| Answer» C. register and immediate operand mode | |