aboutsummaryrefslogtreecommitdiff
path: root/board-js2x/slof/rtc.fs
diff options
context:
space:
mode:
Diffstat (limited to 'board-js2x/slof/rtc.fs')
-rw-r--r--board-js2x/slof/rtc.fs4
1 files changed, 4 insertions, 0 deletions
diff --git a/board-js2x/slof/rtc.fs b/board-js2x/slof/rtc.fs
index 861b3f9..5d5dbc3 100644
--- a/board-js2x/slof/rtc.fs
+++ b/board-js2x/slof/rtc.fs
@@ -40,6 +40,10 @@
\ PC87417.pdf page 156 (chapter 8.3.15) - RTC Control Register C
00 0c rtc!
+: bcd-to-bin ( bcd -- bin )
+ dup f and swap 4 rshift a * +
+;
+
\ read from the rtc and do the bcd-to-bin conversion
: rtc-bin@ ( offset -- value )
rtc@ bcd-to-bin