| 239 | Int128 neg() const; |
| 240 | |
| 241 | Int128 add(Int128 op2) const |
| 242 | { |
| 243 | Int128 rc; |
| 244 | rc.v = v + op2.v; |
| 245 | |
| 246 | // see comment ArithmeticNode::add2() |
| 247 | if (sign() == op2.sign() && op2.sign() != rc.sign()) |
| 248 | overflow(); |
| 249 | |
| 250 | return rc; |
| 251 | } |
| 252 | |
| 253 | Int128 sub(Int128 op2) const |
| 254 | { |