From d40b9c4b786e8eefc8e9d212d95035861566339c Mon Sep 17 00:00:00 2001
From: Kathy Gray
Date: Wed, 20 Jan 2016 10:39:46 +0000
Subject: Show opcode in sequential interpreter when decode fails

---
 src/lem_interp/run_with_elf.ml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/lem_interp/run_with_elf.ml b/src/lem_interp/run_with_elf.ml
index b6c0a8f3..f1b19c9c 100644
--- a/src/lem_interp/run_with_elf.ml
+++ b/src/lem_interp/run_with_elf.ml
@@ -902,7 +902,9 @@ let rec fde_loop count context model mode track_dependencies opcode =
        | Interp_interface.Unsupported_instruction_error instr ->
          debugf "\n**** Encountered unsupported instruction %s ****\n" (Printing_functions.instruction_to_string instr)
        | Interp_interface.Not_an_instruction_error op ->
-         debugf "\n**** Encountered non-decodeable opcode ****\n"
+         (match op with
+          | Opcode bytes ->
+            debugf "\n**** Encountered non-decodeable opcode: %s ****\n" (Printing_functions.byte_list_to_string bytes))
        | Internal_error s -> debugf "\n**** Internal error on decode: %s ****\n" s);
       exit 1
   in
-- 
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