xnor
Exclusive NOR
Performs the bit-wise exclusive-NOR operation on xs1 and xs2.
| This instruction must have data-independent timing when extension Zkt is enabled. |
Decode Variables
Bits<5> xs2 = $encoding[24:20];
Bits<5> xs1 = $encoding[19:15];
Bits<5> xd = $encoding[11:7];Execution
if (implemented?(ExtensionName::B) && (CSR[misa].B == 1'b0)) {
raise(ExceptionCode::IllegalInstruction, mode(), $encoding);
}
X[xd] = ~(X[xs1] ^ X[xs2]);