shrub/j/6/ut_mint.c

/* j/6/mint.c
**
** This file is in the public domain.
*/
#include "all.h"


int FOO;

/* logic
*/
  static u3_noun
  _mint_in(u3_noun, u3_noun, u3_noun, u3_noun);

  static u3_noun
  _mint_bean(void)
  {
    return u3nt(c3__fork,
                        u3nq(c3__cube, 0, c3__atom, 'f'),
                        u3nq(c3__cube, 1, c3__atom, 'f'));
  }

  static u3_bean
  _mint_vet(
            u3_noun van)
  {
    // u3_bean vet = u3_cj_hook(u3k(van), "vet");
    u3_bean vet = u3_cr_at(u3_cqfu_van_vet, van);

    switch ( vet ) {
      case c3n:
      case c3y: return vet;
      default: return u3_cm_bail(c3__fail);
    }
  }

  static u3_noun
  _mint_core(
             u3_noun pac,
             u3_noun con)
  {
    if ( (c3__void == pac) ) {
      return c3__void;
    } else {
      return u3nt(c3__core, pac, con);
    }
  }

  static u3_noun
  _mint_foil(
             u3_noun pok)
  {
    u3_noun p_pok = u3h(pok);
    u3_noun q_pok = u3t(pok);
    u3_noun ret;

    if ( c3y == u3h(q_pok) ) {
      u3_noun pq_pok = u3t(q_pok);

      ret = u3nc(
                  u3k(p_pok),
                  u3nc(u3_nul,
                               u3nc(
                                     u3nc(
                                           u3k(pq_pok),
                                           u3nt(c3__elm, u3_nul, 1)),
                                     u3_nul)));
    }
    else {
      u3_noun pq_pok = u3h(u3t(q_pok));
      u3_noun qq_pok = u3t(u3t(q_pok));

      ret = u3nc(u3k(p_pok),
                         u3nc(u3k(pq_pok),
                                      u3k(qq_pok)));
    }
    u3z(pok);
    return ret;
  }

  static u3_noun
  _mint_cond(
             u3_noun pex,
             u3_noun yom,
             u3_noun woq)
  {
    if ( 1 == u3h(pex) ) {
      if ( 0 == u3t(pex) ) {
        u3z(pex);
        u3z(woq);

        return yom;
      }
      else if ( 1 == u3t(pex) ) {
        u3z(pex);
        u3z(yom);

        return woq;
      }
    }
    return u3nq(6, pex, yom, woq);
  }

  static u3_noun
  _mint_corn(
             u3_noun van,
             u3_noun sut,
             u3_noun gen)
  {
    u3_noun mil = _mint_in(van, sut, c3__noun, gen);
    u3_noun fol = u3k(u3t(mil));

    u3z(mil);
    return fol;
  }

  static u3_noun
  _mint_nice(
             u3_noun van,
             u3_noun gol,
             u3_noun typ)
  {
    if ( (c3y == _mint_vet(van)) &&
         (c3n == u3_cqfu_nest(van, gol, c3y, typ)) )
    {
      // u3_noun dun = u3_cqfu_dunq(van, "need", gol);
      // u3_noun niz = u3_cqfu_dunq(van, "have", typ);

      // u3_ct_push(u3nc(c3__mean, dun));
      // u3_ct_push(u3nc(c3__mean, niz));

      return u3_cm_error("mint-nice");
    }
    else return typ;
  }

  static u3_noun
  _mint_coke(
             u3_noun nug)
  {
    u3_atom axe;

    if ( 0 == u3h(nug) ) {
      axe = u3t(nug);
    } else if ( 10 == u3h(nug) ) {
      u3_noun xin = u3k(u3t(u3t(nug)));

      axe = _mint_coke(xin);
    }
    else {
      return u3_cm_error("mint-coke");
    }
    u3z(nug);
    return axe;
  }

  static u3_noun
  _mint_edit(
             u3_noun van,
             u3_noun sut,
             u3_noun mew,
             u3_noun p_lar,
             u3_noun rag,
             u3_noun hej)
  {
    while ( 1 ) {
      if ( c3n == u3du(mew) ) {
        u3_noun gim = u3_cqfu_fire(van, sut, rag);
        u3_noun fol = u3_cqf_hike(p_lar, hej);

        u3z(rag);
        u3z(hej);

        return u3nc(gim, fol);
      } else {
        u3_noun i_mew = u3h(mew);
        u3_noun t_mew = u3t(mew);
        u3_noun pi_mew = u3h(i_mew);
        u3_noun qi_mew = u3t(i_mew);
        u3_noun zil = u3_cqfu_mint(van, sut, c3__noun, qi_mew);
        u3_noun p_zil = u3h(zil);
        u3_noun q_zil = u3t(zil);
        u3_noun wip = u3_cqfu_tock
          (van, sut, pi_mew, p_zil, rag);

        u3z(rag);
        rag = u3k(u3t(wip));

        hej = u3nc(u3nc(u3k(u3h(wip)),
                                        u3k(q_zil)),
                           hej);

        u3z(zil);
        u3z(wip);

        mew = t_mew;
      }
    }
  }

  static u3_noun
  _mint_brew(
             u3_noun van,
             u3_noun sut,
             u3_bean tov,
             u3_noun gen)
  {
    u3_noun von;

    switch ( tov ) {
      default: return u3_cm_bail(c3__fail);
      case c3y:
        von = u3k(van); break;
      case c3n:
        von = u3_ci_molt(u3k(van), u3_cqfu_van_vet, c3n, 0); break;
    }
    {
      u3_noun mil = u3_cqfu_mint(von, sut, c3__noun, gen);
      u3_noun fol = u3k(u3t(mil));

      u3z(mil);
      u3z(von);
      return fol;
    }
  }

  static u3_noun
  _mint_bake(
             u3_noun van,
             u3_noun sut,
             u3_noun dab)
  {
    if ( (u3_nul == dab) ) {
      return 0;
    }
    else {
      u3_noun n_dab, l_dab, r_dab;

      u3_cr_trel(dab, &n_dab, &l_dab, &r_dab);
      if ( c3n == u3du(n_dab) ) {
        return u3_cm_bail(c3__fail);
      }
      else {
        u3_noun qn_dab = u3t(n_dab);
        u3_noun vad;

        switch ( u3h(qn_dab) ) {
          default: return u3_cm_bail(c3__exit);
          case c3__ash: {
            vad = _mint_brew(van, sut, c3y, u3t(qn_dab));
            break;
          }
          case c3__elm: {
            vad = _mint_brew(van, sut, c3n, u3t(qn_dab));
            break;
          }
        }

        if ( (u3_nul == l_dab) && (u3_nul == r_dab) ) {
          return vad;
        }
        else if ( (u3_nul == l_dab) ) {
          return u3nc
            (vad, _mint_bake(van, sut, r_dab));
        }
        else if ( (u3_nul == r_dab) ) {
          return u3nc
            (vad, _mint_bake(van, sut, l_dab));
        }
        else {
          return u3nt
            (vad,
                    _mint_bake(van, sut, l_dab),
                    _mint_bake(van, sut, r_dab));
        }
      }
    }
  }

  static u3_noun
  _mint_grow(
             u3_noun van,
             u3_noun sut,
             u3_noun gol,
             u3_atom mel,
             u3_noun ruf,
             u3_noun dab)
  {
    u3_noun dan = _mint_in(van, sut, c3__noun, ruf);
    u3_noun p_dan = u3h(dan);
    u3_noun q_dan = u3t(dan);
    u3_noun toc = _mint_core
      (u3k(p_dan),
              u3nt(c3__gold,
                           u3k(p_dan),
                           u3nc(u3_nul, u3k(dab))));
    u3_noun dez = _mint_bake(van, toc, dab);
    u3_noun zod = u3nc(1, dez);
    u3_noun cot = _mint_core
      (u3k(p_dan),
              u3nt(mel,
                           u3k(p_dan),
                           u3nc(u3k(dez),
                                        u3k(dab))));
    u3_noun ret = u3nc
      (
       _mint_nice(van, gol, cot),
       u3_cqf_cons(zod, q_dan));

    u3z(zod);
    u3z(toc);
    u3z(dan);

    return ret;
  }

  static u3_noun
  _mint_loc(
            u3_noun van,
            u3_noun loc)
  {
    u3_noun mol = u3nc('o', u3k(loc));
    u3_noun sho = u3_cj_hook(u3k(van), "show");
    u3_noun ret = u3_ci_molt(u3k(sho), u3_cv_sam, u3k(mol), 0);

    u3z(mol);
    u3z(sho);

    return ret;
  }

# define _mint_used()

  static u3_noun
  _mint_in(u3_noun van,
           u3_noun sut,
           u3_noun gol,
           u3_noun gen)
  {
    u3_noun p_gen, q_gen, r_gen;
    u3_noun ret;

    if ( (c3__void == sut) &&
         !((c3y == u3du(gen)) && (c3__zpcb == u3h(gen))) )
    {
      if ( (c3n == _mint_vet(van))
           || ((c3y == u3du(gen)) &&
               ((c3__zpfs == u3h(gen)) || (c3__zpzp == u3h(gen)))) )
      {
        return u3nt(c3__void, 0, 0);
      }
      else {
        return u3_cm_error("mint-vain");
      }
    }

    if ( c3n == u3du(gen) ) {
      u3_noun ter = u3_cr_at(u3_cv_con_3, van);
      u3_noun rex = u3_cqfp_open(ter, gen);

      ret = _mint_in(van, sut, gol, rex);
      u3z(rex);

      return ret;
    }
    else if ( c3y == u3du(u3h(gen)) ) {
      _mint_used();
      {
        u3_noun hed = _mint_in(van, sut, c3__noun, u3h(gen));
        u3_noun tal = _mint_in(van, sut, c3__noun, u3t(gen));
        u3_noun typ = u3_cqf_cell(u3h(hed), u3h(tal));

        ret = u3nc
          (
           _mint_nice(van, gol, typ),
           u3_cqf_cons(u3t(hed), u3t(tal)));

        u3z(hed);
        u3z(tal);

        return ret;
      }
    } else switch ( u3h(gen) ) {
      default: {
        u3_noun ter = u3_cr_at(u3_cv_con_3, van);
        u3_noun rex = u3_cqfp_open(ter, gen);

        if ( c3y == u3_cr_sing(rex, gen) ) {
#if 1
          u3_noun zix = u3_cqfu_shep(van, "gene", 'q', u3k(gen));

          u3_ct_push(u3nc(c3__mean, zix));
          return u3_cm_error("mint-open");
#else
          u3_err("h", u3h(gen));
          return u3_cm_bail(c3__fail);
#endif
        }
        ret = _mint_in(van, sut, gol, rex);
        u3z(rex);

        return ret;
      }

      case c3__bcpt: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun sep = u3_cqfu_seep(van, sut, c3__read, p_gen);
        u3_noun axe = u3h(sep);
        u3_noun rex = u3_cqfl_whip(van, q_gen, axe);
        u3_noun ret = _mint_in(van, sut, gol, rex);

        u3z(sep);
        u3z(rex);

        return ret;
      }

      case c3__wtts: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun nob = u3_cqfl_bunt(van, p_gen);
        u3_noun dok = u3nc(c3__cnzz, u3k(q_gen));
        u3_noun vol = _mint_corn(van, sut, dok);
        u3_noun axe = _mint_coke(vol);
        u3_noun wam = u3_cqfu_play(van, sut, nob);

        ret = u3nc
          (
           _mint_nice(van, gol, _mint_bean()),
           u3_cqfu_fish(van, wam, axe));

        u3z(axe);
        u3z(wam);
        u3z(nob);
        u3z(dok);

        return ret;
      }

      case c3__wtcl: u3_cx_trel(u3t(gen), &p_gen, &q_gen, &r_gen);
      _mint_used();
      {
        u3_noun bol = _mint_bean();
        u3_noun nor = _mint_in(van, sut, bol, p_gen);
        u3_noun fex = u3_cqfu_gain(van, sut, p_gen);
        u3_noun wux = u3_cqfu_lose(van, sut, p_gen);
        u3_noun duy = (c3__void == fex)
                        ? ( (c3__void == wux)
                             ?  u3nc(0, 0)
                             :  u3nc(1, 1) )
                        : ( (c3__void == wux)
                            ?  u3nc(1, 0)
                            :  u3k(u3t(nor)) );
        u3_noun hiq = _mint_in(van, fex, gol, q_gen);
        u3_noun ran = _mint_in(van, wux, gol, r_gen);

        ret = u3nc
          (u3_cqf_fork(u3h(hiq), u3h(ran)),
                  _mint_cond(duy,
                                    u3k(u3t(hiq)),
                                    u3k(u3t(ran))));

        u3z(ran);
        u3z(hiq);
        u3z(nor);
        u3z(wux);
        u3z(fex);
        u3z(bol);

        return ret;
      }
      case c3__clhp: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun hed = _mint_in(van, sut, c3__noun, p_gen);
        u3_noun tal = _mint_in(van, sut, c3__noun, q_gen);
        u3_noun typ = u3_cqf_cell(u3h(hed), u3h(tal));

        ret = u3nc
          (
           _mint_nice(van, gol, typ),
           u3_cqf_cons(u3t(hed), u3t(tal)));

        u3z(hed);
        u3z(tal);

        return ret;
      }
      case c3__dtts: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun typ = _mint_nice(van, gol, _mint_bean());
        u3_noun one = _mint_corn(van, sut, p_gen);
        u3_noun two = _mint_corn(van, sut, q_gen);

        return u3nc(typ, u3nt(5, one, two));
      }
      case c3__dtwt: p_gen = u3t(gen);
      _mint_used();
      {
        u3_noun typ = _mint_nice(van, gol, _mint_bean());

        return u3nc
          (
           typ,
           u3nc(3, _mint_corn(van, sut, p_gen)));
      }
      case c3__dtkt: p_gen = u3t(gen);
      _mint_used();
      {
        u3_noun tom = c3__noun;
        u3_noun sam = _mint_in(van, sut, tom, p_gen);

        ret = u3nc
          (
           _mint_nice(van, gol, tom),
           u3nc(11, u3k(u3t(sam))));

        u3z(sam);
        return ret;
      }
      case c3__dtls: p_gen = u3t(gen);
      _mint_used();
      {
        u3_noun tom = u3nc(c3__atom, u3_blip);
        u3_noun sam = _mint_in(van, sut, tom, p_gen);

        ret = u3nc
          (
           _mint_nice(van, gol, tom),
           u3nc(4, u3k(u3t(sam))));

        u3z(sam);
        return ret;
      }
      case c3__dtzz: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun boc = (c3n == u3ud(q_gen))
                        ? c3__noun
                        : u3nc(c3__atom, u3k(p_gen));
        u3_noun typ = u3_cqf_cube(q_gen, boc);
        u3_noun ret =
            u3nc(
                  _mint_nice(van, gol, typ),
                  u3nc(1, u3k(q_gen)));

        u3z(boc);
        return ret;
      }
      case c3__dttr: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun one = _mint_corn(van, sut, p_gen);
        u3_noun two = _mint_corn(van, sut, q_gen);

        return u3nc
          (
           _mint_nice(van, gol, c3__noun),
           u3nt(2, one, two));
      }
      case c3__dtzy: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun typ = u3_cqfu_play(van, sut, gen);
        u3_noun ret =
            u3nc(
                  _mint_nice(van, gol, typ),
                  u3nc(1, u3k(q_gen)));

        return ret;
      }
      case c3__ktbr: p_gen = u3t(gen);
      _mint_used();
      {
        u3_noun ryd = _mint_in(van, sut, gol, p_gen);
        u3_noun tyf = u3_cqfu_wrap(van, u3h(ryd), c3__iron);
        u3_noun pro = u3nc(tyf, u3k(u3t(ryd)));

        u3z(ryd);
        return pro;
      }
      case c3__ktpm: p_gen = u3t(gen);
      _mint_used();
      {
        u3_noun ryd = _mint_in(van, sut, gol, p_gen);
        u3_noun tyf = u3_cqfu_wrap(van, u3h(ryd), c3__zinc);
        u3_noun pro = u3nc(tyf, u3k(u3t(ryd)));

        u3z(ryd);
        return pro;
      }
      case c3__ktwt: p_gen = u3t(gen);
      _mint_used();
      {
        u3_noun ryd = _mint_in(van, sut, gol, p_gen);
        u3_noun tyf = u3_cqfu_wrap(van, u3h(ryd), c3__lead);
        u3_noun pro = u3nc(tyf, u3k(u3t(ryd)));

        u3z(ryd);
        return pro;
      }
      case c3__ktts: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun vat = _mint_in(van, sut, gol, q_gen);

        ret = u3nc
          (
           u3_cqfu_conk(van, u3h(vat), p_gen),
           u3k(u3t(vat)));

        u3z(vat);
        return ret;
      }
      case c3__ktzp: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun vat = _mint_in(van, sut, gol, q_gen);

        ret = u3nc
          (
           u3_cqfu_conk(van, u3h(vat), p_gen),
           u3k(u3t(vat)));

        u3z(vat);
        return ret;
      }
      case c3__ktsg: p_gen = u3t(gen);
      _mint_used();
      {
        u3_noun nef = _mint_in(van, sut, gol, p_gen);
        u3_noun p_nef = u3h(nef);
        u3_noun q_nef = u3t(nef);
        u3_noun fom;

        {
          u3_noun cag = u3_cqfu_burn(van, sut);
          u3_noun wim = u3_cn_nock_an(cag, u3k(q_nef));

          if ( 0 == u3h(wim) ) {
            fom = u3nc(1, u3k(u3t(wim)));
          } else {
            fom = u3k(q_nef);
          }
          u3z(wim);
        }
        ret = u3nc(u3k(p_nef), fom);

        u3z(nef);
        return ret;
      }
      case c3__ktls: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun huz = u3_cqfu_play(van, sut, p_gen);
        u3_noun hif = _mint_nice(van, gol, huz);
        u3_noun zel = _mint_in(van, sut, hif, q_gen);
        u3_noun ret = u3nc(hif, u3k(u3t(zel)));

        u3z(zel);
        return ret;
      }
      case c3__kthx: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun huz = u3_cqfu_play(van, sut, p_gen);
        u3_noun hif = _mint_nice(van, gol, huz);
        u3_noun zel = _mint_in(van, sut, hif, q_gen);
        u3_noun ret = u3nc(hif, u3k(u3t(zel)));

#if 0
        {
          u3_noun goz = u3_cqfu_play(van, sut, q_gen);
          u3_noun bar;

          FOO = 1;
          fprintf(stderr, "\r\n");
          bar = u3_cqfu_nest(van, huz, c3n, goz);
          fprintf(stderr, "kthx: bar %d\r\n", bar);
          FOO = 0;
        }
#endif
        u3z(zel);
        return ret;
      }
      case c3__tsgr: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun fid = _mint_in(van, sut, c3__noun, p_gen);
        u3_noun p_fid = u3h(fid);
        u3_noun q_fid = u3t(fid);
        u3_noun dov = _mint_in(van, p_fid, gol, q_gen);
        u3_noun p_dov = u3h(dov);
        u3_noun q_dov = u3t(dov);

        ret = u3nc
          (u3k(p_dov),
                  u3_cqf_comb(q_fid, q_dov));

        u3z(fid);
        u3z(dov);
        return ret;
      }
      case c3__tstr: u3_cx_trel(u3t(gen), &p_gen, &q_gen, &r_gen);
      _mint_used();
      {
        u3_noun sep = u3_cqfu_seep(van, sut, c3__both, q_gen);
        u3_noun bid = u3nt(u3k(p_gen), u3k(q_gen), sep);
        u3_noun boc = u3_cqf_bull(bid, sut);
        u3_noun ret = _mint_in(van, boc, gol, r_gen);

        u3z(bid);
        u3z(boc);

        return ret;
      }
      case c3__cnts: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun sec = u3_cqfu_seek(van, sut, c3__read, p_gen);
        u3_noun lar = _mint_foil(sec);
        u3_noun p_lar = u3h(lar);
        u3_noun q_lar = u3t(lar);
        u3_noun pq_lar = u3h(q_lar);
        u3_noun qq_lar = u3t(q_lar);
        u3_noun mew = u3_cqfu_snub(van, sut, q_gen);
        u3_noun yom = _mint_edit
          (van, sut, mew, p_lar, u3k(qq_lar), u3_nul);
        u3_noun p_yom = u3h(yom);
        u3_noun q_yom = u3t(yom);
        u3_noun ret = u3nc
          (_mint_nice(van, gol, u3k(p_yom)),
                  (0 == pq_lar) ? u3k(q_yom)
                                : u3nt(9, u3k(pq_lar), u3k(q_yom)));

        u3z(yom);
        u3z(mew);
        u3z(lar);

        return ret;
      }
      case c3__pmcl: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun ruf = u3nt
          (c3__clhp,
                  u3nc(u3_nul, 1),
                  u3k(p_gen));
        u3_noun ret = _mint_grow(van, sut, gol, c3__zinc, ruf, q_gen);

        u3z(ruf);
        return ret;
      }
      case c3__brcn: p_gen = u3t(gen);
      _mint_used();
      {
        u3_noun ruf = u3nc(u3_nul, 1);

        ret = _mint_grow(van, sut, gol, c3__gold, ruf, p_gen);
        u3z(ruf);

        return ret;
      }
      case c3__pmcn: p_gen = u3t(gen);
      _mint_used();
      {
        u3_noun ruf = u3nc(u3_nul, 1);

        ret = _mint_grow(van, sut, gol, c3__lead, ruf, p_gen);
        u3z(ruf);

        return ret;
      }
      case c3__pmls: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun ruf = u3nt
          (c3__clhp,
                  u3nc(u3_nul, 1),
                  u3k(p_gen));
        u3_noun ret = _mint_grow(van, sut, gol, c3__iron, ruf, q_gen);

        u3z(ruf);
        return ret;
      }
      case c3__sgzp: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun typ = u3_cqfu_play(van, sut, p_gen);
        u3_noun dug = u3_cqfu_duck(van, typ);

        u3_ct_push(u3nc(c3__mean, dug));
        {
          ret = _mint_in(van, sut, gol, q_gen);
        }
        u3_ct_drop();

        u3z(typ);
        return ret;
      }
      case c3__sggr: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun hum = _mint_in(van, sut, gol, q_gen);
        u3_noun bez;

          if ( c3y == u3ud(p_gen) ) {
            bez = u3k(p_gen);
          } else {
            bez = u3nc(u3k(u3h(p_gen)),
                               _mint_corn(van, sut, u3t(p_gen)));
          }
          ret = u3nc(
                      u3k(u3h(hum)),
                      u3nt(10, bez, u3k(u3t(hum))));

        u3z(hum);
        return ret;
      }
      case c3__zpts: p_gen = u3t(gen);
      _mint_used();
      {
        u3_noun von = u3_ci_molt(u3k(van), u3_cqfu_van_vet, c3n, 0);
        u3_noun sev = _mint_corn(von, sut, p_gen);

        u3z(von);
        return u3nc(c3__noun, u3nc(1, sev));
      }
      case c3__zpcm: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        return u3nc
          (
           _mint_nice(van,
                             gol,
                             u3_cqfu_play(van, sut, p_gen)),
           u3nc(1, u3k(q_gen)));
      }
      case c3__zpcb: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      {
        u3_ct_push(u3nc(c3__mean, _mint_loc(van, p_gen)));
        {
          u3_noun hum = _mint_in(van, sut, gol, q_gen);
          u3_noun bez = u3nt(c3__spot, 1, u3k(p_gen));

          ret = u3nc(u3k(u3h(hum)), u3nt(10, bez, u3k(u3t(hum))));
          u3z(hum);
        }
        u3_ct_drop();
        return ret;
      }
      case c3__zpcn:
      _mint_used();
      {
        u3_noun pet   = u3_cj_hook(u3k(van), "seed");
        u3_noun p_pet = u3h(pet);
        u3_noun q_pet = u3t(pet);
        u3_noun ret;

        ret = u3nc(_mint_nice(van, gol, u3k(p_pet)),
                           u3nc(1, u3k(q_pet)));

        u3z(pet);
        return ret;
      }
      case c3__zpsm: u3_cx_cell(u3t(gen), &p_gen, &q_gen);
      _mint_used();
      {
        u3_noun vos   = _mint_in(van, sut, c3__noun, q_gen);
        u3_noun zur   = u3_cqfu_play(van, sut, p_gen);
        u3_noun p_vos = u3h(vos);
        u3_noun q_vos = u3t(vos);
        u3_noun waz   = u3nc(1, u3k(p_vos));
        u3_noun sif   = u3k(zur);
        u3_noun cig   = u3_cqf_cell(sif, p_vos);
        u3_noun ret;

        ret = u3nc(
                    _mint_nice(van, gol, cig),
                    u3_cqf_cons(waz, q_vos));

        u3z(waz);
        u3z(zur);
        u3z(sif);
        u3z(vos);

        return ret;
      }
      case c3__zpfs: p_gen = u3t(gen);
      _mint_used();
      {
        if ( c3y == _mint_vet(van) ) {
          u3_noun zur = u3_cqfu_play(van, sut, p_gen);
          u3_noun dun = u3_cqfu_dunq(van, "lost", zur);

          u3_ct_push(u3nc(c3__mean, dun));
          return u3_cm_error("mint-lost");
        }
        else {
          return u3nt(c3__void, 0, 0);
        }
      }
      case c3__zpzp:
      _mint_used();
      {
        return u3nt(c3__void, 0, 0);
      }
    }
  }

  u3_noun
  _cqfu_mint(
                        u3_noun van,
                        u3_noun sut,
                        u3_noun gol,
                        u3_noun gen)
  {
    return _mint_in(van, sut, gol, gen);
  }

/* boilerplate
*/
  u3_noun
  u3_cwfu_mint(u3_noun cor)
  {
    u3_noun sut, gol, gen, van;

    if ( (c3n == u3_cr_mean(cor, u3_cv_sam_2, &gol,
                                u3_cv_sam_3, &gen,
                                u3_cv_con, &van,
                                0)) ||
         (c3nne == (sut = u3_cr_at(u3_cv_sam, van))) )
    {
      return u3_cm_bail(c3__fail);
    } else {
      return _cqfu_mint(van, sut, gol, gen);
    }
  }

  u3_noun
  u3_cqfu_mint(u3_noun van,
                        u3_noun sut,
                        u3_noun gol,
                        u3_noun gen)
  {
    c3_m    fun_m = c3__mint;
    u3_noun vrf   = u3_cr_at(u3_cqfu_van_vrf, van);
    u3_noun pro   = u3_cz_find_4(fun_m, vrf, sut, gol, gen);

    if ( c3nne != pro ) {
      return pro;
    }
    else {
      pro = _cqfu_mint(van, sut, gol, gen);

      return u3_cz_save_4(fun_m, vrf, sut, gol, gen, pro);
    }
  }