cooked 3

2026-05-16 19:35:27 +00:00 · 2026-05-14 08:02:24 +05:30
parent 447e01fbc3
commit 1226e432cd
12 changed files with 538 additions and 0 deletions
@@ -0,0 +1,95 @@
+#include <stdio.h>
+
+// ── PAGING ────────────────────────────────────────────────────────────────
+void paging() {
+    int page_size, num_pages;
+    printf("\n--- PAGING ---\n");
+    printf("Enter page size: ");
+    scanf("%d", &page_size);
+    printf("Enter number of pages: ");
+    scanf("%d", &num_pages);
+
+    int page_table[num_pages];
+    printf("Enter frame number for each page:\n");
+    for (int i = 0; i < num_pages; i++) {
+        printf("  Page %d -> Frame: ", i);
+        scanf("%d", &page_table[i]);
+    }
+
+    int logical;
+    printf("Enter logical address: ");
+    scanf("%d", &logical);
+
+    int page  = logical / page_size;   // which page
+    int offset = logical % page_size;  // offset within page
+
+    if (page >= num_pages) {
+        printf("Invalid! Page %d does not exist.\n", page);
+        return;
+    }
+
+    int frame   = page_table[page];
+    int physical = frame * page_size + offset;
+
+    printf("\nPage Number : %d\n", page);
+    printf("Offset      : %d\n", offset);
+    printf("Frame Number: %d\n", frame);
+    printf("Physical Address: %d\n", physical);
+}
+
+// ── SEGMENTATION ──────────────────────────────────────────────────────────
+void segmentation() {
+    int num_seg;
+    printf("\n--- SEGMENTATION ---\n");
+    printf("Enter number of segments: ");
+    scanf("%d", &num_seg);
+
+    int base[num_seg], limit[num_seg];
+    printf("Enter base and limit for each segment:\n");
+    for (int i = 0; i < num_seg; i++) {
+        printf("  Segment %d -> Base: ", i);
+        scanf("%d", &base[i]);
+        printf("  Segment %d -> Limit: ", i);
+        scanf("%d", &limit[i]);
+    }
+
+    int seg, offset;
+    printf("Enter segment number: ");
+    scanf("%d", &seg);
+    printf("Enter offset: ");
+    scanf("%d", &offset);
+
+    if (seg >= num_seg) {
+        printf("Invalid! Segment %d does not exist.\n", seg);
+        return;
+    }
+
+    if (offset >= limit[seg]) {
+        printf("Segmentation Fault! Offset %d exceeds limit %d.\n", offset, limit[seg]);
+        return;
+    }
+
+    int physical = base[seg] + offset;
+    printf("\nSegment Base  : %d\n", base[seg]);
+    printf("Segment Limit : %d\n", limit[seg]);
+    printf("Offset        : %d\n", offset);
+    printf("Physical Address: %d\n", physical);
+}
+
+// ── MAIN ──────────────────────────────────────────────────────────────────
+int main() {
+    int ch;
+    while (1) {
+        printf("\n1. Paging");
+        printf("\n2. Segmentation");
+        printf("\n3. Exit");
+        printf("\nEnter choice: ");
+        scanf("%d", &ch);
+
+        if      (ch == 1) paging();
+        else if (ch == 2) segmentation();
+        else if (ch == 3) break;
+        else printf("Invalid choice\n");
+    }
+    return 0;
+}