/* u3n_nock_on(): produce .*(bus fol). Do not virtualize.
*/
u3_noun
u3n_nock_on(u3_noun bus, u3_noun fol)
{
u3_noun pro;
u3t_on(noc_o);
pro = _n_nock_on(bus, fol);
u3t_off(noc_o);
return pro;
}
/* _n_nock_on(): produce .*(bus fol). Do not virtualize.
*/
static u3_noun
_n_nock_on(u3_noun bus, u3_noun fol)
{
u3_noun hib, gal;
while ( 1 ) {
hib = u3h(fol);
gal = u3t(fol);
u3R->pro.nox_d += 1;
if ( c3y == u3r_du(hib) ) {
u3_noun poz, riv;
poz = _n_nock_on(u3k(bus), u3k(hib));
riv = _n_nock_on(bus, u3k(gal));
u3a_lose(fol);
return u3i_cell(poz, riv);
}
else switch ( hib ) {
default: return u3m_bail(c3__exit);
case 0: {
if ( c3n == u3r_ud(gal) ) {
return u3m_bail(c3__exit);
}
else {
u3_noun pro = u3k(u3at(gal, bus));
u3a_lose(bus); u3a_lose(fol);
return pro;
}
}
c3_assert(!"not reached");
case 1: {
u3_noun pro = u3k(gal);
u3a_lose(bus); u3a_lose(fol);
return pro;
}
c3_assert(!"not reached");
case 2: {
u3_noun nex = _n_nock_on(u3k(bus), u3k(u3t(gal)));
u3_noun seb = _n_nock_on(bus, u3k(u3h(gal)));
u3a_lose(fol);
bus = seb;
fol = nex;
continue;
}
c3_assert(!"not reached");
case 3: {
u3_noun gof, pro;
gof = _n_nock_on(bus, u3k(gal));
pro = u3r_du(gof);
u3a_lose(gof); u3a_lose(fol);
return pro;
}
c3_assert(!"not reached");
case 4: {
u3_noun gof, pro;
gof = _n_nock_on(bus, u3k(gal));
pro = u3i_vint(gof);
u3a_lose(fol);
return pro;
}
c3_assert(!"not reached");
case 5: {
u3_noun wim = _n_nock_on(bus, u3k(gal));
u3_noun pro = u3r_sing(u3h(wim), u3t(wim));
u3a_lose(wim); u3a_lose(fol);
return pro;
}
c3_assert(!"not reached");
case 6: {
u3_noun b_gal, c_gal, d_gal;
u3x_trel(gal, &b_gal, &c_gal, &d_gal);
{
u3_noun tys = _n_nock_on(u3k(bus), u3k(b_gal));
u3_noun nex;
if ( 0 == tys ) {
nex = u3k(c_gal);
} else if ( 1 == tys ) {
nex = u3k(d_gal);
} else return u3m_bail(c3__exit);
u3a_lose(fol);
fol = nex;
continue;
}
}
c3_assert(!"not reached");
case 7: {
u3_noun b_gal, c_gal;
u3x_cell(gal, &b_gal, &c_gal);
{
u3_noun bod = _n_nock_on(bus, u3k(b_gal));
u3_noun nex = u3k(c_gal);
u3a_lose(fol);
bus = bod;
fol = nex;
continue;
}
}
c3_assert(!"not reached");
case 8: {
u3_noun b_gal, c_gal;
u3x_cell(gal, &b_gal, &c_gal);
{
u3_noun heb = _n_nock_on(u3k(bus), u3k(b_gal));
u3_noun bod = u3nc(heb, bus);
u3_noun nex = u3k(c_gal);
u3a_lose(fol);
bus = bod;
fol = nex;
continue;
}
}
c3_assert(!"not reached");
case 9: {
u3_noun b_gal, c_gal;
u3x_cell(gal, &b_gal, &c_gal);
{
u3_noun seb = _n_nock_on(bus, u3k(c_gal));
u3_noun pro;
u3t_off(noc_o);
pro = u3j_kick(seb, b_gal);
u3t_on(noc_o);
if ( u3_none != pro ) {
u3a_lose(fol);
return pro;
}
else {
if ( c3n == u3r_ud(b_gal) ) {
return u3m_bail(c3__exit);
}
else {
u3_noun nex = u3k(u3at(b_gal, seb));
u3a_lose(fol);
bus = seb;
fol = nex;
continue;
}
}
}
}
c3_assert(!"not reached");
case 10: {
u3_noun p_gal, q_gal;
u3x_cell(gal, &p_gal, &q_gal);
{
u3_noun zep, hod, nex;
if ( c3y == u3r_du(p_gal) ) {
u3_noun b_gal = u3h(p_gal);
u3_noun c_gal = u3t(p_gal);
u3_noun d_gal = q_gal;
zep = u3k(b_gal);
hod = _n_nock_on(u3k(bus), u3k(c_gal));
nex = u3k(d_gal);
}
else {
u3_noun b_gal = p_gal;
u3_noun c_gal = q_gal;
zep = u3k(b_gal);
hod = u3_nul;
nex = u3k(c_gal);
}
u3a_lose(fol);
return _n_hint(zep, hod, bus, nex);
}
}
case 11: {
u3_noun ref = _n_nock_on(u3k(bus), u3k(u3h(gal)));
u3_noun gof = _n_nock_on(bus, u3k(u3t(gal)));
u3_noun val;
u3t_off(noc_o);
val = u3m_soft_esc(ref, u3k(gof));
u3t_on(noc_o);
if ( !_(u3du(val)) ) {
u3m_bail(u3nt(1, gof, 0));
}
if ( !_(u3du(u3t(val))) ) {
//
// replace with proper error stack push
//
u3t_push(u3nc(c3__hunk, _n_mush(gof)));
return u3m_bail(c3__exit);
}
else {
u3_noun pro;
u3z(gof);
u3z(fol);
pro = u3k(u3t(u3t(val)));
u3z(val);
return pro;
}
}
c3_assert(!"not reached");
}
}
}
/* _n_hint(): process hint.
*/
static u3_noun
_n_hint(u3_noun zep,
u3_noun hod,
u3_noun bus,
u3_noun nex)
{
switch ( zep ) {
default: {
// u3m_p("weird zep", zep);
u3a_lose(zep);
u3a_lose(hod);
return _n_nock_on(bus, nex);
}
case c3__hunk:
case c3__lose:
case c3__mean:
case c3__spot: {
u3_noun tac = u3nc(zep, hod);
u3_noun pro;
u3t_push(tac);
#if 0
{
static int low_i;
if ( !low_i ) {
low_i = 1;
if ( 0 == (u3R->pro.nox_d % 65536ULL) ) {
if ( c3__spot == zep ) {
uL(fprintf(uH, "spot %d/%d : %d/%d\r\n",
u3h(u3h(u3t(hod))),
u3t(u3h(u3t(hod))),
u3h(u3t(u3t(hod))),
u3t(u3t(u3t(hod)))));
}
}
low_i = 0;
}
}
#endif
pro = _n_nock_on(bus, nex);
u3t_drop();
return pro;
}
case c3__live: {
if ( c3y == u3ud(hod) ) {
u3t_off(noc_o);
u3t_heck(hod);
u3t_on(noc_o);
} else {
u3z(hod);
}
return _n_nock_on(bus, nex);
}
case c3__slog: {
if ( !(u3C.wag_w & u3o_quiet) ) {
u3t_off(noc_o);
u3t_slog(hod);
u3t_on(noc_o);
}
return _n_nock_on(bus, nex);
}
case c3__germ: {
u3_noun pro = _n_nock_on(bus, nex);
if ( c3y == u3r_sing(pro, hod) ) {
u3z(pro); return hod;
} else {
u3z(hod); return pro;
}
}
case c3__fast: {
u3_noun pro = _n_nock_on(bus, nex);
u3t_off(noc_o);
u3j_mine(hod, u3k(pro));
u3t_on(noc_o);
return pro;
}
case c3__memo: {
u3z(hod);
#if 0
return _n_nock_on(bus, nex);
#else
{
u3_noun pro = u3z_find_2(c3__nock, bus, nex);
if ( pro != u3_none ) {
u3z(bus); u3z(nex);
return pro;
}
pro = _n_nock_on(u3k(bus), u3k(nex));
if ( &(u3H->rod_u) != u3R ) {
u3z_save_2(c3__nock, bus, nex, pro);
}
u3z(bus); u3z(nex);
return pro;
}
#endif
}
case c3__sole: {
u3z(hod);
{
u3_noun pro = _n_nock_on(bus, nex);
// return u3z_uniq(pro);
return pro;
}
}
}
}
/* _n_hint(): process hint.
*/
static u3_noun
_n_hint(u3_noun zep,
u3_noun hod,
u3_noun bus,
u3_noun nex)
{
switch ( zep ) {
default: {
// u3m_p("weird zep", zep);
u3a_lose(zep);
u3a_lose(hod);
return _n_nock_on(bus, nex);
}
case c3__hunk:
case c3__lose:
case c3__mean:
case c3__spot: {
u3_noun tac = u3nc(zep, hod);
u3_noun pro;
u3t_push(tac);
#if 0
if ( c3__spot == zep ) {
printf("spot %d/%d : %d/%d\r\n",
u3h(u3h(u3t(hod))),
u3t(u3h(u3t(hod))),
u3h(u3t(u3t(hod))),
u3t(u3t(u3t(hod))));
}
#endif
pro = _n_nock_on(bus, nex);
u3t_drop();
return pro;
}
case c3__slog: {
u3t_off(noc_o);
u3t_slog(hod);
u3t_on(noc_o);
return _n_nock_on(bus, nex);
}
case c3__germ: {
u3_noun pro = _n_nock_on(bus, nex);
if ( c3y == u3r_sing(pro, hod) ) {
u3z(pro); return hod;
} else {
u3z(hod); return pro;
}
}
case c3__fast: {
u3_noun pro = _n_nock_on(bus, nex);
u3t_off(noc_o);
u3j_mine(hod, u3k(pro));
u3t_on(noc_o);
return pro;
}
case c3__memo: {
u3z(hod);
#if 0
return _n_nock_on(bus, nex);
#else
{
u3_noun pro = u3z_find_2(c3__nock, bus, nex);
if ( pro != u3_none ) {
u3z(bus); u3z(nex);
return pro;
}
pro = _n_nock_on(u3k(bus), u3k(nex));
u3z_save_2(c3__nock, bus, nex, pro);
u3z(bus); u3z(nex);
return pro;
}
#endif
}
case c3__sole: {
u3z(hod);
{
u3_noun pro = _n_nock_on(bus, nex);
// return u3z_uniq(pro);
return pro;
}
}
}
}
