diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 1c3a954a4d..5112690897 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+Fri Jul 29 21:56:23 1994  Steve Chamberlain  (sac@jonny.cygnus.com)
+
+	* remote.c (read_frame):  Split readchar/checksum calculation into
+	two parts since evaluation order is undefined.
+
 Fri Jul 29 13:46:08 1994  Fred Fish  (fnf@cygnus.com)
 
         From Kevin A. Buettner (kev@cujo.geg.mot.com).
diff --git a/gdb/remote.c b/gdb/remote.c
index d5b677e4ee..828b06215b 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -1231,8 +1231,8 @@ read_frame (buf)
 
 	    *bp = '\000';
 
-	    pktcsum = fromhex (readchar (remote_timeout)) << 4
-	      | fromhex (readchar (remote_timeout));
+	    pktcsum = fromhex (readchar (remote_timeout)) << 4;
+	    pktcsum |= fromhex (readchar (remote_timeout));
 
 	    if (csum == pktcsum)
 	      return 1;