max
Maximum
Returns the larger of two signed integers.
|
Software Hint
Calculating the absolute value of a signed integer can be performed using the
following sequence: neg rD,rS followed by `max rD,rS,rD. When using this
common sequence, it is suggested that they are scheduled with no intervening
instructions so that implementations that are so optimized can fuse them
together.
|
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(), $encoding);
}
X[xd] = ($signed(X[xs1]) > $signed(X[xs2])) ? X[xs1] : X[xs2];