vextractf128

2 files changed, 4 insertions, 1 deletions

diff --git a/src/long_mode/vex.rs b/src/long_mode/vex.rs
index 889d0a8..7cfcc3d 100644
--- a/src/long_mode/vex.rs
+++ b/src/long_mode/vex.rs
@@ -461,7 +461,9 @@ fn read_vex_operands<T: Iterator<Item=u8>>(bytes: &mut T, instruction: &mut Inst
             let mem_oper = read_E_xmm(bytes, instruction, modrm, length)?;
             instruction.operands[0] = mem_oper;
             instruction.operands[1] = OperandSpec::RegRRR;
-            instruction.operand_count = 2;
+            instruction.imm = read_imm_unsigned(bytes, 1, length)?;
+            instruction.operands[2] = OperandSpec::ImmU8;
+            instruction.operand_count = 3;
             Ok(())
         }
 
diff --git a/test/long_mode/mod.rs b/test/long_mode/mod.rs
index 686ba6b..1ff699e 100644
--- a/test/long_mode/mod.rs
+++ b/test/long_mode/mod.rs
@@ -1390,6 +1390,7 @@ fn test_vex() {
     test_instr(&[0xc4, 0xe3, 0xfd, 0x00, 0xc1, 0xa8], "vpermq ymm0, ymm1, 0xa8");
     test_instr(&[0xc5, 0xfd, 0xea, 0xd1], "vpminsw ymm2, ymm0, ymm1");
     test_instr(&[0xc5, 0xfd, 0xee, 0xd9], "vpmaxsw ymm3, ymm0, ymm1");
+    test_instr(&[0xc4, 0xe3, 0x7d, 0x19, 0xd1, 0x01], "vextractf128 xmm1, ymm2, 0x1");
 }
 
 #[test]