ARM_ADD_R
emit(ARM_ADD_R(ARM_LR, ARM_IP, ARM_LR), ctx);
emit(ARM_ADD_R(rd[0], ARM_LR, rd[0]), ctx);
emit(ARM_ADD_R(tmp[0], tmp[0], rd), ctx);
emit(ARM_ADD_R(tmp[0], tmp[0], src), ctx);
emit(ARM_ADD_R(tmp[0], tmp[0], src), ctx);
emit(ARM_ADD_R(dst, dst, src), ctx);