fix misdecode of instructions in opcode 0x800.1.3

2 files changed, 2 insertions, 0 deletions

diff --git a/test/long_mode/mod.rs b/test/long_mode/mod.rs
index 33fc8c7..3b31dbb 100644
--- a/test/long_mode/mod.rs
+++ b/test/long_mode/mod.rs
@@ -1097,6 +1097,7 @@ fn test_prefixes() {
     test_display(&[0x40, 0x32, 0xc5], "xor al, bpl");
     test_invalid(&[0xf0, 0x33, 0xc0]);
     test_display(&[0xf0, 0x31, 0x00], "lock xor [rax], eax");
+    test_display(&[0xf0, 0x80, 0x30, 0x00], "lock xor [rax], 0x0");
     test_invalid(&[0xf0, 0xc7, 0x00, 0x00, 0x00, 0x00]);
 }
 
diff --git a/test/protected_mode/mod.rs b/test/protected_mode/mod.rs
index c5c3c7b..84448ef 100644
--- a/test/protected_mode/mod.rs
+++ b/test/protected_mode/mod.rs
@@ -972,6 +972,7 @@ fn test_prefixes() {
     test_display(&[0x66, 0x32, 0xc5], "xor al, ch");
     test_invalid(&[0xf0, 0x33, 0xc0]);
     test_display(&[0xf0, 0x31, 0x00], "lock xor [eax], eax");
+    test_display(&[0xf0, 0x80, 0x30, 0x00], "lock xor [eax], 0x0");
     test_invalid(&[0xf0, 0xc7, 0x00, 0x00, 0x00, 0x00]);
 }