public final void palignr(MMRegister dst, MMRegister src, Immediate imm8)
  {
    emitX86(INST_PALIGNR, dst, src, imm8);
  }
public final void palignr ( MMRegister dst , MMRegister src , Immediate imm8 ) { emitX86 ( INST_PALIGNR , dst , src , imm8 ) ; }
Packed Shuffle Bytes (SSSE3).