From 3b834ed7b77cadb09e2f37fd6234f24925b875b8 Mon Sep 17 00:00:00 2001
From: iximeow <me@iximeow.net>
Date: Sat, 1 Jan 2022 02:22:43 -0800
Subject: more inconvenient test case handling

---
 src/armv8/a64.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/armv8')

diff --git a/src/armv8/a64.rs b/src/armv8/a64.rs
index eb709d0..c0d61e6 100644
--- a/src/armv8/a64.rs
+++ b/src/armv8/a64.rs
@@ -7421,7 +7421,7 @@ impl Decoder<ARMv8> for InstDecoder {
                                             return Err(DecodeError::InvalidOpcode);
                                         }
 
-                                        if opcode >= 0b001000 && Rn != 0b11111 {
+                                        if opcode >= 0b100000 {
                                             return Err(DecodeError::InvalidOperand);
                                         }
 
@@ -7449,6 +7449,9 @@ impl Decoder<ARMv8> for InstDecoder {
                                             if opcode < 0b001000 {
                                                 Operand::RegisterOrSP(SizeCode::X, Rn)
                                             } else {
+                                                if Rn != 0b11111 {
+                                                    return Err(DecodeError::InvalidOpcode);
+                                                }
                                                 Operand::Nothing
                                             },
                                             Operand::Nothing,
-- 
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