fpga: tools: Add do file for ModelSim

Original-commit: 99982799869267550844d34a64fe82dfb1aaa79d

tools/scripts/modelsim.do

@@ -0,0 +1,21 @@
+#
+# Copyright 2024 Ettus Research, a National Instruments Brand
+#
+# SPDX-License-Identifier: LGPL-3.0-or-later
+#
+# ModelSim DO file to run a simulation in batch mode. This script adds
+# detection of error/failure assertions so that non-zero values are returned by
+# ModelSim when the testbench doesn't pass. Calling std.env.finish() or
+# $finish() will return 0. Detecting $fatal() requires that -onfinish be set to
+# stop so the simulator doesn't quit before the DO file finishes.
+#
+
+quietly set BreakOnAssertion 2
+quietly set SIM_ERROR 0
+onbreak {
+    quietly set FINISH [lindex [runStatus -full] 2]
+    if {$FINISH eq "unknown"} { set SIM_ERROR 255 }
+}
+onerror { set SIM_ERROR 255 }
+run -all
+quit -force -code $SIM_ERROR