smvt_control
static int recode_wnaf(struct smvt_control *control,
struct smvt_control control_var[C448_SCALAR_BITS / (C448_WNAF_VAR_TABLE_BITS + 1) + 3];
struct smvt_control control_pre[C448_SCALAR_BITS / (C448_WNAF_FIXED_TABLE_BITS + 1) + 3];