Paging

#include <stdio.h>

#include <stdlib.h>

#define PAGE_SIZE 4  // Define page size (4KB for example)

#define MEMORY_SIZE 32  // Define memory size (32KB for example)

void simulatePaging(int processSize) {

    int numPages = (processSize + PAGE_SIZE - 1) / PAGE_SIZE;  // Calculate the number of pages required

    printf("Process of size %dKB requires %d pages.\n", processSize, numPages);

    int memory[MEMORY_SIZE / PAGE_SIZE];  // Simulate memory with an array

    // Initialize memory (0 means free, 1 means occupied)

    for (int i = 0; i < MEMORY_SIZE / PAGE_SIZE; i++) {

        memory[i] = 0;

    }

    // Allocate pages to the process

    for (int i = 0; i < numPages; i++) {

        for (int j = 0; j < MEMORY_SIZE / PAGE_SIZE; j++) {

            if (memory[j] == 0) {

                memory[j] = 1;

                printf("Allocating page %d to frame %d\n", i, j);

                break;

            }

        }

    }

}

int main() {

    int processSize;

    printf("Enter process size (in KB): ");

    scanf("%d", &processSize);

    simulatePaging(processSize);

    return 0;

}