Explain what this fragment of code does instruction by instruction and what purpose it achieves ( assuming

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Explain what this fragment of code does instruction by instruction and what purpose it achieves ( assuming that register r0 is the register of interest). Note that the data in r0 must not be 0 on entry.

loop MOV MOVS ADDCC BCC rl, #0 ro, ro, LSL #1 rl, rl, #1 loop

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