1 files changed, 3 insertions, 0 deletions
diff --git a/src/kernel.c b/src/kernel.c
index f7f9d6d..ffa8814 100644
--- a/src/kernel.c
+++ b/src/kernel.c
@@ -17,6 +17,9 @@ void kmain() {
   if (uart_init(COM1) != 0) printf("UART self-test failed.\r\n");
 
   printf("hello %s world\n", "kernel");
+  printf("we are number %d\n", 1);
+  printf("a negative %d as hex %x\n", -1, -1);
+  printf("hex 255=0x%x\n", 255);
 
   vga_init(vmm_map(0xb8000, 0xc03ff000));