Question

Assume that we would like to expand the legv8 register file to 128 registers and expand the instruction set to contain four times as many instructions. What will be the total number of registers in the expanded register file?

1) 32
2) 64
3) 96
4) 128

Answer 1

The total number of registers in the expanded register file will be 128.

Step-by-step explanation:

The total number of registers in the expanded register file can be found by multiplying the number of original registers by the factor by which the register file is being expanded. In this case, the legv8 register file is being expanded to 128 registers, which is four times the original size. Since the original size is 32 registers, we can calculate the total number of registers in the expanded register file as follows:

Total number of registers = 32 registers * 4 = 128 registers.

Therefore, the correct answer is option 4)

128

.