fix hreset being disassembled as having second operand of "Nothing"

just report it having one operand...

3 files changed, 15 insertions, 0 deletions

diff --git a/test/long_mode/mod.rs b/test/long_mode/mod.rs
index c0ec1a5..8cb032c 100644
--- a/test/long_mode/mod.rs
+++ b/test/long_mode/mod.rs
@@ -3463,6 +3463,9 @@ fn test_keylocker() {
 #[test]
 fn from_llvm() {
     test_display(&[0xf3, 0x0f, 0x3a, 0xf0, 0xc0, 0x01], "hreset 0x1");
+    let mut reader = yaxpeax_arch::U8Reader::new(&[0xf3, 0x0f, 0x3a, 0xf0, 0xc0, 0x01]);
+    let hreset = InstDecoder::default().decode(&mut reader).expect("can disassemble test instruction");
+    assert_eq!(hreset.operand_count(), 1);
 }
 
 #[test]
diff --git a/test/protected_mode/mod.rs b/test/protected_mode/mod.rs
index fd77b5e..0f3a6ff 100644
--- a/test/protected_mode/mod.rs
+++ b/test/protected_mode/mod.rs
@@ -3138,6 +3138,9 @@ fn test_keylocker() {
 #[test]
 fn from_llvm() {
     test_display(&[0xf3, 0x0f, 0x3a, 0xf0, 0xc0, 0x01], "hreset 0x1");
+    let mut reader = yaxpeax_arch::U8Reader::new(&[0xf3, 0x0f, 0x3a, 0xf0, 0xc0, 0x01]);
+    let hreset = InstDecoder::default().decode(&mut reader).expect("can disassemble test instruction");
+    assert_eq!(hreset.operand_count(), 1);
 }
 
 #[test]
diff --git a/test/real_mode/mod.rs b/test/real_mode/mod.rs
index bc045d8..c5b1548 100644
--- a/test/real_mode/mod.rs
+++ b/test/real_mode/mod.rs
@@ -18414,6 +18414,15 @@ fn test_invalid_sequences() {
 
 }
 
+// some test cases are best just lifted from llvm or gcc.
+#[test]
+fn from_llvm() {
+    test_display(&[0xf3, 0x0f, 0x3a, 0xf0, 0xc0, 0x01], "hreset 0x1");
+    let mut reader = yaxpeax_arch::U8Reader::new(&[0xf3, 0x0f, 0x3a, 0xf0, 0xc0, 0x01]);
+    let hreset = InstDecoder::default().decode(&mut reader).expect("can disassemble test instruction");
+    assert_eq!(hreset.operand_count(), 1);
+}
+
 #[test]
 fn from_reports() {
     // negative compressed evex displacements should not overflow and panic