1 files changed, 19 insertions, 0 deletions
diff --git a/libraries/openieee/upf.vhdl b/libraries/openieee/upf.vhdl
new file mode 100644
index 000000000..974798331
--- /dev/null
+++ b/libraries/openieee/upf.vhdl
@@ -0,0 +1,19 @@
+-- modelled according to IEEE Std 1801-2015, 11.2
+
+package upf is
+
+  function supply_on (
+    constant supply_name : string;
+    constant voltage     : real)
+    return boolean;
+
+  function supply_partial_on (
+    constant supply_name : string;
+    constant voltage     : real)
+    return boolean;
+
+  function supply_off (
+    constant supply_name : string)
+    return boolean;
+
+end upf;