Compile the RISC-V assembly code for the following C code. Only use registers x8 and x4. Register x8 holds the initial value of i. Also assume that register x4 is initially 0.

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Compile the RISC-V assembly code for the following C code.
Only use registers x8 and x4.
Register x8 holds the initial value of i. Also assume that register x4 is initially 0.
acc = 0:
i = 136;
while (i! = 0) {
acc += 2:
i = i/2;
}
Transcribed Image Text:Compile the RISC-V assembly code for the following C code. Only use registers x8 and x4. Register x8 holds the initial value of i. Also assume that register x4 is initially 0. acc = 0: i = 136; while (i! = 0) { acc += 2: i = i/2; }
For the loop above, write the equivalent RISC-V code. Assume that the registers x4 and x8 are integers acc and i, respectively. Write the most efficient code possible
(i.e., in clock cycles or seconds) using the following information for the "fictitious" system we are using.
All the branch instructions have take 10 times longer than all the remaining instructions.
Hint: We want to use the fewer possible branch instructions and in the most efficient way. How will you rewrite your code for that?
Transcribed Image Text:For the loop above, write the equivalent RISC-V code. Assume that the registers x4 and x8 are integers acc and i, respectively. Write the most efficient code possible (i.e., in clock cycles or seconds) using the following information for the "fictitious" system we are using. All the branch instructions have take 10 times longer than all the remaining instructions. Hint: We want to use the fewer possible branch instructions and in the most efficient way. How will you rewrite your code for that?
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