From bd883327ace3f7de952a48b394a8ce6b53636595 Mon Sep 17 00:00:00 2001
From: Greg King <gregdk@users.sf.net>
Date: Mon, 26 Jun 2017 02:34:23 -0400
Subject: [PATCH] Added two functions that make it easier to write portable
 programs for Ohio Scientific computers.

---
 libsrc/osic1p/doesclrscr.s | 14 ++++++++++++++
 libsrc/osic1p/revers.s     |  9 +++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 libsrc/osic1p/doesclrscr.s
 create mode 100644 libsrc/osic1p/revers.s

diff --git a/libsrc/osic1p/doesclrscr.s b/libsrc/osic1p/doesclrscr.s
new file mode 100644
index 000000000..3d15e8ade
--- /dev/null
+++ b/libsrc/osic1p/doesclrscr.s
@@ -0,0 +1,14 @@
+;
+; 2016-06, Christian Groessler
+; 2017-06-26, Greg King
+;
+; unsigned char doesclrscrafterexit (void);
+;
+; Returns 0/1 if, after program termination, the screen isn't/is cleared.
+;
+
+        .import         return1
+
+; cc65's OSI programs return to the monitor ROM which clears the screen.
+
+        .export         _doesclrscrafterexit := return1
diff --git a/libsrc/osic1p/revers.s b/libsrc/osic1p/revers.s
new file mode 100644
index 000000000..bb178f647
--- /dev/null
+++ b/libsrc/osic1p/revers.s
@@ -0,0 +1,9 @@
+;
+; 2017-06-26, Greg King
+;
+; unsigned char __fastcall__ revers (unsigned char onoff)
+;
+
+        .import         return0
+
+        .export         _revers := return0      ; no attribute