Question: For the MIPS assembly instructions in Exercise 2.4, rewrite the assembly code to minimize the number if MIPS instructions (if possible) needed to carry out

For the MIPS assembly instructions in Exercise 2.4, rewrite the assembly code to minimize the number if MIPS instructions (if possible) needed to carry out the same function.


Exercise 2.4

For the MIPS assembly instructions below, what is the corresponding C statement? Assume that the variables f, g, h, i, and j are assigned to registers $s0, $s1, $s2, $s3, and $s4, respectively. Assume that the base address of the arrays A and B are in registers $s6 and $s7, respectively.

$t0, $s0, 2 $t0, $s6, $t0 $t1, $s1, 2 $t1, $s7, $t1 $$0, 0($t0) addi $t2, $t0, 4 $t0, 0($t2) $t0, $t0, $s0 $t0, 0($t1) f

$t0, $s0, 2 $t0, $s6, $t0 $t1, $s1, 2 $t1, $s7, $t1 $$0, 0($t0) addi $t2, $t0, 4 $t0, 0($t2) $t0, $t0, $s0 $t0, 0($t1) f * 4 # $t0 # $t0 # $t1 # $t1 # f = A[f] sl add &A[f] g * 4 &B[g] sl1 add 1w 1w add SW

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