Answer:
Modern (i.e 386 and beyond) x86 processors have eight 32-bit general purpose registers, as depicted in Figure 1. The register names are mostly historical. For example, EAX used to be called the accumulator since it was used by a number of arithmetic operations, and ECX was known as the counter since it was used to hold a loop index. Whereas most of the registers have lost their special purposes in the modern instruction set, by convention, two are reserved for special purposes — the stack pointer (ESP) and the base pointer (EBP).
For the EAX, EBX, ECX, and EDX registers, subsections may be used. For example, the least significant 2 bytes of EAX can be treated as a 16-bit register called AX. The least significant byte of AX can be used as a single 8-bit register called AL, while the most significant byte of AX can be used as a single 8-bit register called AH. These names refer to the same physical register. When a two-byte quantity is placed into DX, the update affects the value of DH, DL, and EDX. These sub-registers are mainly hold-overs from older, 16-bit versions of the instruction set. However, they are sometimes convenient when dealing with data that are smaller than 32-bits (e.g. 1-byte ASCII characters).
When referring to registers in assembly language, the names are not case-sensitive. For example, the names EAX and eax refer to the same register.
Explanation:
Answer:
B. The cost of tour t is at most twice the cost of the optimal tour.
Explanation:
You are using a polynomial time 2-approximation algorithm to find a tour t for the traveling salesman problem.
The cost of tour t is at most twice the cost of the optimal tour
The equation represented as Cost(t) <= 2 Cost(T)
Where
Cost (t) represents cost of tour t
Cost(T) represents cost of the optimal tour
Answer:
B
Explanation:
An authentication server server tracks who is logging on to the network as well as which services on the network are available to each user. It also does the job of providing a network service that applications can use to authenticate the credentials, that are oftentimes account names and passwords, of their users. Authentication server is also used as the basis for authorization.
Answer:
The program to this question as follows:
Program:
#include<iostream> //include header file.
using namespace std; //using name space.
int main() //main function.
{
int n,i,key; //define variable.
int a[n]; //define array
cout<<"Enter size of array :"; //message.
cin>>n; //input number from user.
cout<<"Enter array elements :"; //message
for(i = 0;i<n;i++) //loop
{
cin>>a[i]; //input array elements
}
cout<<"Enter a number:"; //message
cin>>key; //input number.
for(i = 0;i<n;i++) //loop
{
if(a[i]<=key) //if block
{
cout<<a[i]<<"\n "; //print array elements
}
}
return 0;
}
Output:
Enter size of array :7
Enter array elements :5
50
50
75
100
200
140
Enter a number:100
5
50
50
75
100
Explanation:
The description of the above program as follows:
- In this program first, we include a header file and define the main method in method we define variables and array that are "n, i, key and a[]". In this function, all variable data type is "integer".
- The variable n is used for the size of array and variable i use in the loop and the key variable is used for comparing array elements. Then we use an array that is "a[]" in the array, we use the for loop to insert elements form user input.
- Then we define a loop that uses a conditional statement in if block we check that array elements is less than and equal to a key variable. If this value is true so, we will print the remaining elements.
<span>A simplified main program used to test functions is called <u><em>formula</em></u>
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