compute_coring
s32 coring_u0 = compute_coring(from->coring.u0);
s32 coring_u1 = compute_coring(from->coring.u1);
s32 coring_v0 = compute_coring(from->coring.v0);
s32 coring_v1 = compute_coring(from->coring.v1);