Print better error for invalid machine instructions

wallento · Oct 30, 2018 · 07332e7 · 07332e7
1 parent 66cbe6f
commit 07332e7
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/riscvmodel/code.py b/riscvmodel/code.py
@@ -38,7 +38,10 @@ def machinsn_decode():
 
     if "insn" in args:
         for i in args.insn:
-            print(decode(int(i,16)))
+            try:
+                print(decode(int(i,16)))
+            except MachineDecodeError:
+                print("Cannot decode {:08x}, invalid instruction".format(int(i,16)))
     elif "filename" in args:
         temp = mkstemp(suffix='.bin')
         subprocess.call([args.objcopy, '-O', 'binary', args.filename, temp[1]])