HW7 Assignment (20 points) Answer the following questions: 1. What are the lowest and highest addresses in a 220 byte memory in which a four-byte word is the smallest addressable unit? ( 2 points) 2. Make a table indicating which of the instruction addcc, andcc, orce, and the synthetic instruction not, can set the z, n, cand v flags to 1. (2 points) 3. Which of the following ARC instructions are legal, and if not, why not? Assume l_b is 0xFFFB. (6 points) a. sethi OxABCDEF, fr12 b. or $r15, 0x1FFF, fr22 c. srl fr8, 32, fr9 4. A section of ARC assembly code is shown below. What does it do? Express your answer in terms of the actions it goes through. Does it add up numbers, or clear something out? Does it simulate a for loop, a while loop or something else? Assume that a and b are memory locations that are defined elsewhere in the code. (4 points) Y : ld [k], fr1 addcc fri, -4, fr1 st fri, [k] bneg x ld [a], fri, fr2 ld [b], fri, fr3 addcc fr2, fr3, fr4 st fr4, fri, [c] ba Y X: jmpl %r15 + 4, 8r0 k : 40