3 files changed, 7 insertions, 0 deletions
diff --git a/eval.c b/eval.c
index a41d362a..d4973217 100644
--- a/eval.c
+++ b/eval.c
@@ -6668,6 +6668,7 @@ void eval_init(void)
   reg_fun(intern(lit("func-set-env"), user_package), func_n2(func_set_env));
   reg_fun(intern(lit("functionp"), user_package), func_n1(functionp));
   reg_fun(intern(lit("interp-fun-p"), user_package), func_n1(interp_fun_p));
+  reg_fun(intern(lit("vm-fun-p"), user_package), func_n1(vm_fun_p));
   reg_fun(intern(lit("ctx-form"), system_package), func_n1(ctx_form));
   reg_fun(intern(lit("ctx-name"), system_package), func_n1(ctx_name));
 
diff --git a/lib.c b/lib.c
index 7219d2d2..ad209037 100644
--- a/lib.c
+++ b/lib.c
@@ -6161,6 +6161,11 @@ val interp_fun_p(val obj)
   return (functionp(obj) && obj->f.functype == FINTERP) ? t : nil;
 }
 
+val vm_fun_p(val obj)
+{
+  return (functionp(obj) && obj->f.functype == FVM) ? t : nil;
+}
+
 static noreturn void callerror(val fun, val msg)
 {
   uses_or2;
diff --git a/lib.h b/lib.h
index 5a818086..b485caed 100644
--- a/lib.h
+++ b/lib.h
@@ -901,6 +901,7 @@ val func_get_env(val fun);
 val func_set_env(val fun, val env);
 val functionp(val);
 val interp_fun_p(val);
+val vm_fun_p(val);
 val generic_funcall(val fun, struct args *);
 val funcall(val fun);
 val funcall1(val fun, val arg);