* `cmpeq $mDst0, $mSrc0, $mSrc1`
* `cmpeq $mDst0, $mSrc0, zimm16`
* `cmpeq $mDst0, $mSrc0, simm16`

*Equality* comparison of two source values. The destination is set to 1
if the two source operands are equal. Otherwise the destination register
is set to 0.