altos: Share getnibble function

[fw/altos] / src / core / ao.h

diff --git a/src/core/ao.h b/src/core/ao.h
index 81d92e72b2d512483b4640a08cf9c1651a2abab3..1aff3d49e708d3d113a30be13f98d3a2c222462d 100644 (file)
--- a/src/core/ao.h
+++ b/src/core/ao.h
@@ -170,6 +170,10 @@ ao_cmd_hex(void);
 void
 ao_cmd_decimal(void);
 
+/* Read a single hex nibble off stdin. */
+uint8_t
+ao_getnibble(void);
+
 uint8_t
 ao_match_word(__code char *word);