1 files changed, 48 insertions, 0 deletions
diff --git a/ieee_proposed/rtl/env_c.vhd b/ieee_proposed/rtl/env_c.vhd
new file mode 100644
index 0000000..e6703fa
--- /dev/null
+++ b/ieee_proposed/rtl/env_c.vhd
@@ -0,0 +1,48 @@
+package ENV is
+
+  procedure STOP (STATUS   : INTEGER);
+  procedure FINISH (STATUS : INTEGER);
+
+  function RESOLUTION_LIMIT return DELAY_LENGTH;
+
+end package ENV;
+library ieee_proposed;
+use ieee_proposed.standard_additions.all;
+package body ENV is
+
+  procedure STOP (STATUS   : INTEGER) is
+  begin
+    report "Procedure STOP called with status: " & INTEGER'image(STATUS)
+      severity failure;
+  end procedure STOP;
+  procedure FINISH (STATUS : INTEGER) is
+  begin
+    report "Procedure FINISH called with status: " & INTEGER'image(STATUS)
+      severity failure;
+  end procedure FINISH;
+
+  constant BASE_TIME_ARRAY : time_vector :=
+    (
+      1 fs, 10 fs, 100 fs,
+      1 ps, 10 ps, 100 ps,
+      1 ns, 10 ns, 100 ns,
+      1 us, 10 us, 100 us,
+      1 ms, 10 ms, 100 ms,
+      1 sec, 10 sec, 100 sec,
+      1 min, 10 min, 100 min,
+      1 hr, 10 hr, 100 hr
+      ) ;
+
+  function RESOLUTION_LIMIT return DELAY_LENGTH is
+  begin
+    for i in BASE_TIME_ARRAY'range loop
+      if BASE_TIME_ARRAY(i) > 0 hr then
+        return BASE_TIME_ARRAY(i);
+      end if;
+    end loop;
+    report "STANDATD.RESOLUTION_LIMIT: Simulator resolution not less than 100 hr"
+      severity failure;
+    return 1 ns;
+  end function RESOLUTION_LIMIT;
+
+end package body ENV;