1 files changed, 16 insertions, 0 deletions
diff --git a/lib/fu.c b/lib/fu.c
new file mode 100644
index 0000000..074007d
--- /dev/null
+++ b/lib/fu.c
@@ -0,0 +1,16 @@
+#include "../int_defs.h"
+
+static char fu_buffer[7*12];
+/* format up to 6 numbers */
+
+char *fu(uint32t u) /*EXTRACT_INCL*/ {
+  static char k=7;
+  char *p = fu_buffer + 12*k;
+  *--p = 0;
+  do {
+    *--p = '0' + (u%10);
+    u /= 10;
+  } while (u);
+  if (--k == 1) k=7;
+  return p;
+}