A 16-bit processor has 16-bit wide instructions and a few internal registers. Every 16-bit instruction is encoded in a fixed format with one operation code of 7 bits and up to three operands. The operand can be an internal register and each operand is encoded by 3 bits. All the internal registers can be specified in an instruction using three bits. The correct statement(s) for this processor is/are _____.
Opcode Calculation
The processor uses 7 bits for the operation code (opcode).
The number of unique Opcodes that can be represented by n bits is calculated as $2^n$.
- Number of unique Opcodes = $2^7$
- Number of unique Opcodes = 128
Therefore, the processor can support 128 unique Opcodes. This aligns with Option B.
Register Calculation
Each operand is encoded using 3 bits, and these bits specify an internal register.
The number of unique internal registers that can be specified using n bits is $2^n$.
- Number of internal registers = $2^3$
- Number of internal registers = 8
Therefore, the processor has up to 8 internal registers. This aligns with Option C.
Conclusion
Based on the calculations:
- The processor can support 128 unique Opcodes (Option B is correct).
- The processor has up to 8 internal registers (Option C is correct).
The correct statements are B and C.
Important Questions from Instructions
Ms X will be in Bagdogra from 01/05/2014 to 20/05/2014 and from 22/05/2014 to 31/05/2014. On the morning of 21/05/2014, she will reach Kochi via Mumbai Which one of the statements below is logically valid and can be inferred from the above sentences?
All people in a certain are either ‘Knights’ or ‘Knaves’ and each person knows every other person’s identity. Knights NEVER lie, and knaves ALWAYS lie.
P says “Both of us are knights”, Q says “None of us are knaves”.
Which one of the following can be logically inferred from the above?Here, throughout the early 1820s, Stuart continued to fight his losing battle to allow his sepoys to wear their caste-marks and their own choice of facial hair on parade, being again reprimanded by the commander-in-chief. His retort that ‘A stronger instance than this of European prejudice with relation to this country has never come under my observations’ had no effect on his superiors.” According to this paragraph, which of the statements below is most accurate?
In a world filled with uncertainty, he was glad to have many good friends. He had always assisted them in times of need and was confident that they would reciprocate. However, the events of the last week proved him wrong. Which of the following inference(s) is/are logically valid and can be inferred from the above passage?
(i) His friends were always asking him to help them.
(ii) He felt that when in need of help, his friends would let him down.
(iii) He was sure that his friends would help him when in need.
(iv) His friends did not help him last week.Fact: If it rains, then the field is wet.
Read the following statements:
(i) It rains
(ii) The field is not wet
(iii) The field is wet
(iv) It did not rain
Which one of the options given below is NOT logically possible, based on the given fact?
