commit 91e139

2026-03-21 15:06:40 Bob Green: -/-

0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9

`programming/machine library.md` ..
@@ 24,3 24,11 @@
	\| 8 \| Available to user. \|
	\| 9 \| Available to user. \|
	\| 10 \| Available to user. \|
+
+	Two functions are provided, one to turn on a led, and another to turn it off.
+
+	```C
+	void set_led(int lednum);
+	void clear_led(int lednum);
+	```
+	Where `lednum` is an integer in the range of 5 through to 10, as per the table above. Any other value will be silently ignored.