Question: (a) The assembly sequence below creates a 32-bit immediate in x5 in all cases. What 1 new instruction could be added to the ISA to

(a) The assembly sequence below creates a 32-bit immediate in x5 in all cases. What 1 new instruction could be added to the ISA to reduce the number of instructions in this function (instruction name only)?

lui x5, 0x12345

addi x6, x0, 0x9AB

slli x6, x6, 20

srli x6, x6, 20

add x5, x5, x6

(b) How many instructions can be saved in the function using the new instruction?

(c) What RISC-V architectural feature creates the problem that the new instruction fixes (enter 1 to 4 words to describe this)?

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