idea_mul
idea_mul(x1, x1, *p, ul);
idea_mul(x4, x4, *p, ul);
idea_mul(x1, x1, *p, ul); \
idea_mul(x4, x4, *p, ul); \
idea_mul(t0, t0, *p, ul); \
idea_mul(t1, t1, *p, ul); \