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Consider the C struct defines below:
 
Q. The base address of student is available in register R1. The field student.grade can be accessed efficiently using
  • a)
    Post-increment addressing mode. (R1)+
  • b)
    Pre-decrement addressing mode, -(R1)
  • c)
    Register direct addressing mode, R1
  • d)
    Index addressing mode, X(R1), where X is an offset represented in 2’s complement 16-bit representation
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Consider the C struct defines below:Q.The base address ofstudentis ava...
The address of student grade can only be accessed by using the base address of Student.
  • Post-increment addressing mode. (R1)+ - Will give the next address and not the desired grade address
  • Pre-decrement addressing mode, -(R1) - Will give the previous address and not the desired grade address
  • Register direct addressing mode, R1 : In this mode, the address of the operand is embedded in the instruction code.
  • Index addressing mode: It is the only mode which gives access to next address by adding displacement in base address using displacement mode. . Base register contains a pointer to a memory location. An integer (constant) is also referred to as a displacement. The address of the operand is obtained by adding the contents of the base register plus the constant.
Therefore, option D is correct
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Consider the C struct defines below:Q.The base address ofstudentis available in register R1. The fieldstudent.gradecan be accessed efficiently usinga)Post-increment addressing mode. (R1)+b)Pre-decrement addressing mode, -(R1)c)Register direct addressing mode, R1d)Index addressing mode, X(R1), where X is an offset represented in 2’s complement 16-bit representationCorrect answer is option 'D'. Can you explain this answer?
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Consider the C struct defines below:Q.The base address ofstudentis available in register R1. The fieldstudent.gradecan be accessed efficiently usinga)Post-increment addressing mode. (R1)+b)Pre-decrement addressing mode, -(R1)c)Register direct addressing mode, R1d)Index addressing mode, X(R1), where X is an offset represented in 2’s complement 16-bit representationCorrect answer is option 'D'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Consider the C struct defines below:Q.The base address ofstudentis available in register R1. The fieldstudent.gradecan be accessed efficiently usinga)Post-increment addressing mode. (R1)+b)Pre-decrement addressing mode, -(R1)c)Register direct addressing mode, R1d)Index addressing mode, X(R1), where X is an offset represented in 2’s complement 16-bit representationCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the C struct defines below:Q.The base address ofstudentis available in register R1. The fieldstudent.gradecan be accessed efficiently usinga)Post-increment addressing mode. (R1)+b)Pre-decrement addressing mode, -(R1)c)Register direct addressing mode, R1d)Index addressing mode, X(R1), where X is an offset represented in 2’s complement 16-bit representationCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Consider the C struct defines below:Q.The base address ofstudentis available in register R1. The fieldstudent.gradecan be accessed efficiently usinga)Post-increment addressing mode. (R1)+b)Pre-decrement addressing mode, -(R1)c)Register direct addressing mode, R1d)Index addressing mode, X(R1), where X is an offset represented in 2’s complement 16-bit representationCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Computer Science Engineering (CSE). Download more important topics, notes, lectures and mock test series for Computer Science Engineering (CSE) Exam by signing up for free.
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