1 files changed, 9 insertions, 0 deletions
diff --git a/src/grt/grt-vpi.ads b/src/grt/grt-vpi.ads
index 68635c876..0ee7cc5e9 100644
--- a/src/grt/grt-vpi.ads
+++ b/src/grt/grt-vpi.ads
@@ -44,6 +44,15 @@ package Grt.Vpi is
    -- object codes, see vpi_user.h
    vpiModule:        constant integer := 32;
    vpiNet:           constant integer := 36;
+   vpiPort:          constant integer := 44;
+   --
+   vpiDirection:     constant integer := 20;
+   vpiInput:         constant integer :=  1;
+   vpiOutput:        constant integer :=  2;
+   vpiInout:         constant integer :=  3;
+   vpiMixedIO:       constant integer :=  4;
+   vpiNoDirection:   constant integer :=  5;
+
    vpiParameter:     constant integer := 41;
    vpiLeftRange:     constant integer := 79;
    vpiRightRange:    constant integer := 83;