Update screen.c

4 years ago · d2493caa90
parent a0677c643c
commit d2493caa90
1 changed files with 7 additions and 5 deletions
--- a/23-fixes/drivers/screen.c
+++ b/23-fixes/drivers/screen.c
@ -44,11 +44,13 @@ void kprint(char *message) {
    kprint_at(message, -1, -1);
 }

-void kprint_backspace() {
-    int offset = get_cursor_offset()-2;
-    int row = get_offset_row(offset);
-    int col = get_offset_col(offset);
-    print_char(0x08, col, row, WHITE_ON_BLACK);
+void kprint_backspace(char key_buffer[256]) {
+    if (strlen(key_buffer) != 0) {
+        int offset = get_cursor_offset()-2;
+        int row = get_offset_row(offset);
+        int col = get_offset_col(offset);
+        print_char(0x08, col, row, WHITE_ON_BLACK);
+    }
 }