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Prime Finder - assembly program:
Problem: Prime Finder In this problem you will write a small program that tests whether a given integer is a prime number or not. Let's call the number we are testing A and let's assume that it starts in R0 - at the end of your program R1 should contain 1 if the number is prime and 0 if it is not. Here is the pseudo-code for the procedure If (A <= 1) { PRIME_FLAG = 0; GOTO END } B = 2; PRIME_FLAG = 1; // we assume that the number is prime until we prove otherwise While (B*B <= A) { If (A % B == 0) { // check if A is divisible by B PRIME_FLAG = 0; GOTO END } B = B+1 } END You should think about why this code works. For this part you should turn in two files: prime.asm and prime_script.txt
PTR : Pointer:- The pointer operator which is used to declare the type of a variable, label or memory operand. The operator PTR is prefixed by either WORD or BYTE. If the prefi
END : END of Program:- The END directive marks the ending of the assembly language program. When the assembler comes across this END directive, it avoided the source lines avai
Using DEBUG DEBUG.COM is a DOS efficacy that facilitates the trouble-shooting and debugging of assembly language programs. In particular case of personal computers, all of th
Interrupt Table Each interrupt level has a booked memory location, called an interrupt vector. All these vectors (or pointers) are stored in the interrupt table. Table lies at
LENGTH : Byte Length of a Label: This directive is not available in MASM. This is used to mention to the length of a data array or a string. MOV CX. LENGTH ARRAY This sta
Read Architecture : Look Aside Cache In "look aside" cache architecture the main memory is located conflictingthe system interface. Both the cache main memory sees a bus cycle
DIV: Unsigned Division:- This instruction performs unsigned division operation. It divides an unsigned word or double word by a 16-bit or 8-bit operand. The dividend might be in t
how i can write a program to divide 2 numbers
A good starting point for your program is the toupper.asm program shown in class. It already queries the user for input and sets up a loop that looks at each character of the input
8251 Programmable/Communication Interface As an instance of a serial interface device let us suppose Intel's 8251 A programmable communication interfaces. The 8251A is diagram
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