1 files changed, 15 insertions, 3 deletions
diff --git a/target/hexagon/gen_trans_funcs.py b/target/hexagon/gen_trans_funcs.py
index 30f0c73..45da1b7 100755
--- a/target/hexagon/gen_trans_funcs.py
+++ b/target/hexagon/gen_trans_funcs.py
@@ -24,6 +24,7 @@ import sys
 import textwrap
 import iset
 import hex_common
+import argparse
 
 encs = {
     tag: "".join(reversed(iset.iset[tag]["enc"].replace(" ", "")))
@@ -136,8 +137,19 @@ def gen_trans_funcs(f):
         """))
 
 
-if __name__ == "__main__":
-    hex_common.read_semantics_file(sys.argv[1])
+def main():
+    parser = argparse.ArgumentParser(
+        description="Emit trans_*() functions to be called by " \
+                    "instruction decoder"
+    )
+    parser.add_argument("semantics", help="semantics file")
+    parser.add_argument("out", help="output file")
+    args = parser.parse_args()
+    hex_common.read_semantics_file(args.semantics)
     hex_common.init_registers()
-    with open(sys.argv[2], "w") as f:
+    with open(args.out, "w") as f:
         gen_trans_funcs(f)
+
+
+if __name__ == "__main__":
+    main()