From e4c0c0ed2e4b3fb3f9d5fd037cc5ec2dbe762fde Mon Sep 17 00:00:00 2001
From: iximeow <me@iximeow.net>
Date: Thu, 21 Oct 2021 18:00:31 -0700
Subject: remaining 1-source data processing instructions are unallocated

---
 src/armv8/a64.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/armv8')

diff --git a/src/armv8/a64.rs b/src/armv8/a64.rs
index 37f02b8..258c650 100644
--- a/src/armv8/a64.rs
+++ b/src/armv8/a64.rs
@@ -1439,7 +1439,9 @@ impl Decoder<ARMv8> for InstDecoder {
                                         }
                                     }
                                     _ => {
-                                        return Err(DecodeError::IncompleteDecoder);
+                                        // Data-processing (1 source), op2 > 0b00001 is (currently
+                                        // as of v8.3) undefined.
+                                        return Err(DecodeError::InvalidOpcode);
                                     }
                                 }
                             }
-- 
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