ARM_AND_I
emit(ARM_AND_I(tmp2[1], rn, 0xff), ctx);
emit(ARM_AND_I(tmp2[0], tmp2[0], 0xff), ctx);
emit(ARM_AND_I(tmp2[1], rn, 0xff), ctx);
emit(ARM_AND_I(tmp2[1], tmp2[1], 0xff), ctx);
emit(ARM_AND_I(tmp2[0], tmp2[0], 0xff), ctx);