diff --git a/sim/tic80/ChangeLog b/sim/tic80/ChangeLog
index 5ed0921660..45ddcd9671 100644
--- a/sim/tic80/ChangeLog
+++ b/sim/tic80/ChangeLog
@@ -1,3 +1,8 @@
+Tue Sep 16 23:10:03 1997  Felix Lee  <flee@cygnus.com>
+
+	* sim-main.h (kill): macro was missing args.
+	(SIGTRAP): define for MSVC.
+
 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 
 	* configure: Regenerated to track ../common/aclocal.m4 changes.
diff --git a/sim/tic80/sim-main.h b/sim/tic80/sim-main.h
index 43872273fd..8b4c930491 100644
--- a/sim/tic80/sim-main.h
+++ b/sim/tic80/sim-main.h
@@ -71,6 +71,10 @@ extern void engine_init
 #endif
 
 #ifndef HAVE_KILL
-#define kill() (errno = EINVAL, -1)
+#define kill(sig, pid) (errno = EINVAL, -1)
 #endif
 #endif
+
+#ifndef SIGTRAP
+# define SIGTRAP 5
+#endif