Update file kernel.c

kernel.c

@@ -80,12 +80,11 @@ void terminal_setcolor(uint8_t color) {
 }
  
 void terminal_putentryat(char c, uint8_t color, size_t x, size_t y) {
-  // Check if the cursor is at the bottom of the screen
     if (y == VGA_HEIGHT) {
         // Scroll the screen up one row
-    for (size_t i = 0; i < VGA_HEIGHT - 1; i++) {
-      for (size_t x = 0; x < VGA_WIDTH; x++) {
-        terminal_buffer[i * VGA_WIDTH + x] = terminal_buffer[(i + 1) * VGA_WIDTH + x];
+        for (size_t i = 1; i < VGA_HEIGHT; i++) {
+            for (size_t j = 0; j < VGA_WIDTH; j++) {
+                terminal_buffer[(i - 1) * VGA_WIDTH + j] = terminal_buffer[i * VGA_WIDTH + j];
             }
         }
         // Clear the last row
@@ -100,14 +99,14 @@ void terminal_putentryat(char c, uint8_t color, size_t x, size_t y) {
     terminal_buffer[index] = make_vgaentry(c, color);
 }
 
-
-
 void terminal_putchar(char c) {
     if (c == '\n') {
         terminal_column = 0;
         if (++terminal_row == VGA_HEIGHT) {
             terminal_row = 0;
         }
+    } else if (c == '\r') {
+        terminal_column = 0;
     } else {
         terminal_putentryat(c, terminal_color, terminal_column, terminal_row);
         if (++terminal_column == VGA_WIDTH) {