add behavior fuzzing, fix some stuff it noticed

1 files changed, 5 insertions, 0 deletions

diff --git a/src/long_mode/mod.rs b/src/long_mode/mod.rs
index 1b5caf1..04b89ff 100644
--- a/src/long_mode/mod.rs
+++ b/src/long_mode/mod.rs
@@ -462,6 +462,9 @@ impl OperandSpec {
     fn is_memory(&self) -> bool {
         (*self as u8) & 0x80 != 0
     }
+    fn is_masked(&self) -> bool {
+        (*self as u8) & 0x40 != 0
+    }
 }
 
 /// an `avx512` merging mode.
@@ -7128,6 +7131,8 @@ fn read_operands<
             instruction.imm = read_num(words, 1)? as u64;
             instruction.operands[0] = OperandSpec::ImmInDispField;
             instruction.operands[1] = OperandSpec::ImmU8;
+            // because there is an implied push of the adjusted base pointer
+            instruction.mem_size = 8;
             instruction.operand_count = 2;
         }
         OperandCase::Fw => {