diff --git a/src/spider/runtime/instr/Instr_000-01F.cpp b/src/spider/runtime/instr/Instr_000-01F.cpp
index bc1eb40..c6af0bb 100644
--- a/src/spider/runtime/instr/Instr_000-01F.cpp
+++ b/src/spider/runtime/instr/Instr_000-01F.cpp
@@ -111,16 +111,16 @@ namespace spider {
         fetchOperDst();
         switch(_size){
             case 0b00: //byte
-                _dst->_u32 = _dst->_u8 & 1;
+                _dst->_u16 = _dst->_u8 & 1;
                 break;
             case 0b01: //short
                 _dst->_u32 = _dst->_u16 & 1;
                 break;
             case 0b10: //int
-                _dst->_u32 = _dst->_u32 & 1;
+                _dst->_u64 = _dst->_u32 & 1;
                 break;
             case 0b11: //long
-                _dst->_u32 = _dst->_u64 & 1;
+                _dst->_u64 = _dst->_u64;
                 break;
         }
         _dst->_u32 = _dst->_u8;
@@ -199,11 +199,11 @@ namespace spider {
         fetchOperDst();
         switch(_size){
             case 0b00: //byte
-                _dst->_u8 = _src->_u8 * _dst->_u8;
+                _dst->_i8 = _src->_i8 * _dst->_i8;
             case 0b01: //short
-                _dst->_u16 = _src->_u16 * _dst->_u16;
+                _dst->_i16 = _src->_i16 * _dst->_i16;
             case 0b10: //int
-                _dst->_u32 = _src->_u32 * _dst->_u32;
+                _dst->_i32 = _src->_i32 * _dst->_i32;
             case 0b11: //long
                 _dst->_i64 = _src->_i64 * _dst->_i64;
         }