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please i want these question solve as soon as possible thank you What is the max

ID: 3839913 • Letter: P

Question

please i want these question solve as soon as possible

thank you

What is the maximum directly addressable memory capacity in bytes, if the address bus is 16-bit? Assume each memory location is one byte. Consider a hypothetical 32-bit microprocessor having 32-bit instructions composed of two fields, the first byte contains the opcode and the remainder the immediate operand and or an operand address. a. What is the maximum directly addressable memory capacity in bytes? b. How many bits are needed for the program counter and the instruction register?

Explanation / Answer

13)Answer:

a). 2^(32-8) = 2^24 = 16,777,216 bytes = 16 MB ,(8 bits = 1 byte for he opcode).

b) For the PC needs 24 bits (24-bit addresses), and for the IR needs 32 bits (32-bit addresses)