fix misdecode of instructions in opcode 0x800.1.3

2 files changed, 2 insertions, 0 deletions

diff --git a/src/long_mode/mod.rs b/src/long_mode/mod.rs
index 94e34ae..363c605 100644
--- a/src/long_mode/mod.rs
+++ b/src/long_mode/mod.rs
@@ -6171,6 +6171,7 @@ fn read_operands<T: Iterator<Item=u8>>(decoder: &InstDecoder, mut bytes_iter: T,
             instruction.operand_count = 1;
         },
         1 => {
+            instruction.opcode = base_opcode_map((modrm >> 3) & 7);
             instruction.operands[0] = mem_oper;
             instruction.operands[1] = OperandSpec::ImmI8;
             instruction.operand_count = 2;
diff --git a/src/protected_mode/mod.rs b/src/protected_mode/mod.rs
index 29c2750..b60ff34 100644
--- a/src/protected_mode/mod.rs
+++ b/src/protected_mode/mod.rs
@@ -6023,6 +6023,7 @@ fn read_operands<T: Iterator<Item=u8>>(decoder: &InstDecoder, mut bytes_iter: T,
             instruction.operand_count = 1;
         },
         1 => {
+            instruction.opcode = base_opcode_map((modrm >> 3) & 7);
             instruction.operands[0] = mem_oper;
             instruction.operands[1] = OperandSpec::ImmI8;
             instruction.operand_count = 2;