From 35574f1365d355d51e7d6094391e26aee89396f1 Mon Sep 17 00:00:00 2001
From: Lars Brinkhoff <lars@nocrew.org>
Date: Tue, 14 Apr 2020 07:40:15 +0200
Subject: [PATCH] DISPLAY: Fix warning about shifting negative value.

---
 display/ng.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/display/ng.c b/display/ng.c
index 53914d26..c404550f 100644
--- a/display/ng.c
+++ b/display/ng.c
@@ -257,7 +257,7 @@ void delta (uint16 inst)
   int delta = inst & 01777;
 
   if (inst & 01000)
-    delta |= -1 << 10;
+    delta |= ~0u << 10;
 
   switch (inst & 014000) {
   case 000000: