Merge pull request #829 from inexorabletash/string-escapes

[cc65] / doc / c64.sgml

diff --git a/doc/c64.sgml b/doc/c64.sgml
index 328a77ab6ace6ba69b6efd6edee50e14d0876c23..37ac0c1466b39ac4257177b00dad38ead19f3211 100644 (file)
--- a/doc/c64.sgml
+++ b/doc/c64.sgml
@@ -418,6 +418,13 @@ The default drivers, <tt/mouse_stddrv (mouse_static_stddrv)/, point to <tt/c64-1
 <sect>Limitations<p>
 
 
+<sect1>Realtime clock<p>
+
+The realtime clock functions use the CIA1 TOD clock. As that clock only stores
+the time but not the date, the date set by <tt/clock_settime()/ is simply stored
+inside the C library for retrieval in the same program via <tt/clock_gettime()/.
+
+
 
 <sect>Other hints<p>