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A CPU has 24-...

Question

A CPU has 24-bit instructions. A program starts at address 300 (in decimal). Which one of the following is a legal program counter (all values in decimal)?

A

700

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B

600

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C

500

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D

400

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Solution

The correct option is B 600
Size of instruction 24 bits

Starting address of the program is 300. The size of instruction is 3 bytes long So the address is always the multiple of 3 bytes next address is 600 it is also the next instruction of the program.

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