From 5a1731a2584222cf3e2d66685f96f8dc43cd3542 Mon Sep 17 00:00:00 2001
From: iximeow <me@iximeow.net>
Date: Sun, 13 Apr 2025 19:40:12 -0700
Subject: another fuzz victory!

---
 src/display.rs | 6 +++---
 src/lib.rs     | 2 ++
 2 files changed, 5 insertions(+), 3 deletions(-)

(limited to 'src')

diff --git a/src/display.rs b/src/display.rs
index 90dfca4..810d07f 100644
--- a/src/display.rs
+++ b/src/display.rs
@@ -294,7 +294,7 @@ impl fmt::Display for Instruction {
                 Some(AssignMode::SetBit) => ("= setbit", true),
             };
             write!(f, "{}({}){} {}{}{}{}",
-                self.opcode, self.dest.expect("unreachable; store has a destination"),
+                self.opcode, display_or_partial(self.dest.as_ref()),
                 match self.flags.threads {
                     Some(DomainHint::Same) => { ":st" },
                     Some(DomainHint::All) => { ":at" },
@@ -314,8 +314,8 @@ impl fmt::Display for Instruction {
         if SC_STORES.contains(&self.opcode) {
             write!(f, "{}({}, {}) = {}",
                 self.opcode,
-                self.dest.expect("unreachable; store has a destination"),
-                self.alt_dest.expect("unreachable; store-conditional has a predicate reg"),
+                display_or_partial(self.dest.as_ref()),
+                display_or_partial(self.alt_dest.as_ref()),
                 self.sources[0]
             )?;
             return Ok(());
diff --git a/src/lib.rs b/src/lib.rs
index 6c89dec..3b816f9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2115,6 +2115,8 @@ fn decode_packet<
         current_word += 1;
     }
 
+    opcode_check!(extender.is_none());
+
     handler.on_decode_end();
 
     Ok(())
-- 
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