Initial commit

x86 kernel that prints a hello world message to com1

1 files changed, 13 insertions, 0 deletions

diff --git a/lib/string/itoa.c b/lib/string/itoa.c
new file mode 100644
index 0000000..5eefb37
--- /dev/null
+++ b/lib/string/itoa.c
@@ -0,0 +1,13 @@
+#include "string.h"
+
+char *
+itoa(char *p, unsigned x)
+{
+  p += 3 * sizeof(int);
+  *--p = 0;
+  do {
+    *--p = '0' + x % 10;
+    x /= 10;
+  } while (x);
+  return p;
+}