From 999eb2ac6950c589e8649651f9b538b85900cf39 Mon Sep 17 00:00:00 2001
From: iximeow <me@iximeow.net>
Date: Mon, 27 Dec 2021 20:37:51 -0800
Subject: that decode arm is already handled

---
 src/armv8/a64.rs | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

(limited to 'src')

diff --git a/src/armv8/a64.rs b/src/armv8/a64.rs
index a38511d..a02be49 100644
--- a/src/armv8/a64.rs
+++ b/src/armv8/a64.rs
@@ -5806,13 +5806,10 @@ impl Decoder<ARMv8> for InstDecoder {
                                             (SIMDSizeCode::S, ((immh & 0b0011) << 4)| immb)
                                         }
                                         0 => {
-                                            if !Q {
-                                                return Err(DecodeError::InvalidOperand);
-                                            } else {
-                                                // `Advanced SIMD modified immediate`
-                                                return Err(DecodeError::IncompleteDecoder);
-                                            }
-                                            (SIMDSizeCode::D, ((immh & 0b0111) << 4)| immb)
+                                            // the +q version of this check would be `Advanced SIMD
+                                            // modified immediate`, checked well before we got
+                                            // here. so assume q is 0, error.
+                                            return Err(DecodeError::InvalidOperand);
                                         }
                                         _ => {
                                             return Err(DecodeError::InvalidOperand);
-- 
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