Long average (long a [) { // finds the average (arithmetic mean of an array of 8 elements long sum = 0; for (int i = 0; // loop through all elements i < 8; i++) ( sum +- a[i); } return sum/8; // find the average by dividing by the number of elements (8). n the assembly implementation of the function below, fill in the three missing jump instructions so that it matches the code above: average: xorg frax, trax * sum = 0 xorg frcx, trcx label2 labell: addą (rdi, trcx, 8), rax incq trcx # sum = sum + a[i] # i = i+1 Label2: cmpg $8, trcx labell salq $3, trax * sum = sum / 8 retą

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Suppose we have the following C function:
long average (long a 0) { // finds the average (arithmetic mean of an array of 8 elements
long sum = 0;
for (int i = 0;
sum += a[i):
i < 8;
i++) (
// loop through all elements
}
return sum/8; // find the average by dividing by the number of elements (8).
}
In the assembly implementation of the function below, fill in the three missing jump instructions so that it matches the code above:
average:
xorg trax, trax
xorg trcx, trcx
# sum = 0
* i = 0
label2
labell:
# sum = sum + a[i]
# i = i+1
addą (šrdi, trcx, 8), &rax
incq trcx
label2:
cmpg $8, trcx
labell
salq $3, trax
# sum = sum / 8
retą
Transcribed Image Text:Suppose we have the following C function: long average (long a 0) { // finds the average (arithmetic mean of an array of 8 elements long sum = 0; for (int i = 0; sum += a[i): i < 8; i++) ( // loop through all elements } return sum/8; // find the average by dividing by the number of elements (8). } In the assembly implementation of the function below, fill in the three missing jump instructions so that it matches the code above: average: xorg trax, trax xorg trcx, trcx # sum = 0 * i = 0 label2 labell: # sum = sum + a[i] # i = i+1 addą (šrdi, trcx, 8), &rax incq trcx label2: cmpg $8, trcx labell salq $3, trax # sum = sum / 8 retą
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