mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-12-21 05:41:43 +03:00
405 lines
7.1 KiB
C
405 lines
7.1 KiB
C
/* g/i.c
|
|
**
|
|
*/
|
|
#include "all.h"
|
|
|
|
/* u3i_words():
|
|
**
|
|
** Copy [a] words from [b] into an atom.
|
|
*/
|
|
u3_noun
|
|
u3i_words(c3_w a_w,
|
|
const c3_w* b_w)
|
|
{
|
|
/* Strip trailing zeroes.
|
|
*/
|
|
while ( a_w && !b_w[a_w - 1] ) {
|
|
a_w--;
|
|
}
|
|
|
|
/* Check for cat.
|
|
*/
|
|
if ( !a_w ) {
|
|
return 0;
|
|
}
|
|
else if ( (a_w == 1) && !(b_w[0] >> 31) ) {
|
|
return b_w[0];
|
|
}
|
|
|
|
/* Allocate, fill, return.
|
|
*/
|
|
{
|
|
c3_w* nov_w = u3a_walloc(a_w + c3_wiseof(u3a_atom));
|
|
u3a_atom* nov_u = (void*)nov_w;
|
|
|
|
nov_u->mug_w = 0;
|
|
nov_u->len_w = a_w;
|
|
|
|
/* Fill the words.
|
|
*/
|
|
{
|
|
c3_w i_w;
|
|
|
|
for ( i_w=0; i_w < a_w; i_w++ ) {
|
|
nov_u->buf_w[i_w] = b_w[i_w];
|
|
}
|
|
}
|
|
return u3a_to_pug(u3a_outa(nov_w));
|
|
}
|
|
}
|
|
|
|
/* u3i_chubs():
|
|
**
|
|
** Construct `a` double-words from `b`, LSD first, as an atom.
|
|
*/
|
|
u3_atom
|
|
u3i_chubs(c3_w a_w,
|
|
const c3_d* b_d)
|
|
{
|
|
c3_w *b_w = c3_malloc(a_w * 8);
|
|
c3_w i_w;
|
|
u3_atom p;
|
|
|
|
for ( i_w = 0; i_w < a_w; i_w++ ) {
|
|
b_w[(2 * i_w)] = b_d[i_w] & 0xffffffffULL;
|
|
b_w[(2 * i_w) + 1] = b_d[i_w] >> 32ULL;
|
|
}
|
|
p = u3i_words((a_w * 2), b_w);
|
|
free(b_w);
|
|
return p;
|
|
}
|
|
|
|
/* u3i_bytes():
|
|
**
|
|
** Copy `a` bytes from `b` to an LSB first atom.
|
|
*/
|
|
u3_noun
|
|
u3i_bytes(c3_w a_w,
|
|
const c3_y* b_y)
|
|
{
|
|
/* Strip trailing zeroes.
|
|
*/
|
|
while ( a_w && !b_y[a_w - 1] ) {
|
|
a_w--;
|
|
}
|
|
|
|
/* Check for cat.
|
|
*/
|
|
if ( a_w <= 4 ) {
|
|
if ( !a_w ) {
|
|
return 0;
|
|
}
|
|
else if ( a_w == 1 ) {
|
|
return b_y[0];
|
|
}
|
|
else if ( a_w == 2 ) {
|
|
return (b_y[0] | (b_y[1] << 8));
|
|
}
|
|
else if ( a_w == 3 ) {
|
|
return (b_y[0] | (b_y[1] << 8) | (b_y[2] << 16));
|
|
}
|
|
else if ( (b_y[3] <= 0x7f) ) {
|
|
return (b_y[0] | (b_y[1] << 8) | (b_y[2] << 16) | (b_y[3] << 24));
|
|
}
|
|
}
|
|
|
|
/* Allocate, fill, return.
|
|
*/
|
|
{
|
|
c3_w len_w = (a_w + 3) >> 2;
|
|
c3_w* nov_w = u3a_walloc((len_w + c3_wiseof(u3a_atom)));
|
|
u3a_atom* nov_u = (void*)nov_w;
|
|
|
|
nov_u->mug_w = 0;
|
|
nov_u->len_w = len_w;
|
|
|
|
/* Clear the words.
|
|
*/
|
|
{
|
|
c3_w i_w;
|
|
|
|
for ( i_w=0; i_w < len_w; i_w++ ) {
|
|
nov_u->buf_w[i_w] = 0;
|
|
}
|
|
}
|
|
|
|
/* Fill the bytes.
|
|
*/
|
|
{
|
|
c3_w i_w;
|
|
|
|
for ( i_w=0; i_w < a_w; i_w++ ) {
|
|
nov_u->buf_w[i_w >> 2] |= (b_y[i_w] << ((i_w & 3) * 8));
|
|
}
|
|
}
|
|
return u3a_to_pug(u3a_outa(nov_w));
|
|
}
|
|
}
|
|
|
|
/* u3i_mp():
|
|
**
|
|
** Copy the GMP integer `a` into an atom, and clear it.
|
|
*/
|
|
u3_noun
|
|
u3i_mp(mpz_t a_mp)
|
|
{
|
|
/* Efficiency: unnecessary copy.
|
|
*/
|
|
{
|
|
c3_w pyg_w = mpz_size(a_mp) * ((sizeof(mp_limb_t)) / 4);
|
|
c3_w *buz_w = alloca(pyg_w * 4);
|
|
c3_w i_w;
|
|
|
|
for ( i_w = 0; i_w < pyg_w; i_w++ ) {
|
|
buz_w[i_w] = 0;
|
|
}
|
|
mpz_export(buz_w, 0, -1, 4, 0, 0, a_mp);
|
|
mpz_clear(a_mp);
|
|
|
|
return u3i_words(pyg_w, buz_w);
|
|
}
|
|
}
|
|
|
|
/* u3i_vint():
|
|
**
|
|
** Create `a + 1`.
|
|
*/
|
|
u3_noun
|
|
u3i_vint(u3_noun a)
|
|
{
|
|
c3_assert(u3_none != a);
|
|
|
|
if ( _(u3a_is_cat(a)) ) {
|
|
c3_w vin_w = (a + 1);
|
|
|
|
if ( a == 0x7fffffff ) {
|
|
return u3i_words(1, &vin_w);
|
|
}
|
|
else return vin_w;
|
|
}
|
|
else if ( _(u3a_is_cell(a)) ) {
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else {
|
|
mpz_t a_mp;
|
|
|
|
u3r_mp(a_mp, a);
|
|
u3a_lose(a);
|
|
|
|
mpz_add_ui(a_mp, a_mp, 1);
|
|
return u3i_mp(a_mp);
|
|
}
|
|
}
|
|
|
|
c3_w BAD;
|
|
|
|
/* u3i_cell():
|
|
**
|
|
** Produce the cell `[a b]`.
|
|
*/
|
|
u3_noun
|
|
u3i_cell(u3_noun a, u3_noun b)
|
|
{
|
|
c3_assert(u3_none != a);
|
|
c3_assert(u3_none != b);
|
|
|
|
c3_assert(!_(u3a_is_junior(u3R, a)));
|
|
c3_assert(!_(u3a_is_junior(u3R, b)));
|
|
|
|
{
|
|
// c3_w* nov_w = u3a_walloc(c3_wiseof(u3a_cell));
|
|
c3_w* nov_w = u3a_celloc();
|
|
u3a_cell* nov_u = (void *)nov_w;
|
|
u3_noun pro;
|
|
|
|
nov_u->mug_w = 0;
|
|
nov_u->hed = a;
|
|
nov_u->tel = b;
|
|
|
|
pro = u3a_to_pom(u3a_outa(nov_w));
|
|
#if 0
|
|
if ( (0x730e66cc == u3r_mug(pro)) &&
|
|
(c3__tssg == u3h(u3t(u3t(pro)))) ) {
|
|
static c3_w xuc_w;
|
|
fprintf(stderr, "BAD %x %p\r\n", pro, u3a_to_ptr(a));
|
|
BAD = pro;
|
|
if ( xuc_w == 1 ) u3m_bail(c3__exit);
|
|
xuc_w++;
|
|
}
|
|
#endif
|
|
#if 1
|
|
return pro;
|
|
#else
|
|
if ( !FOO ) return u3a_to_pom(u3a_outa(nov_w));
|
|
else {
|
|
u3_noun pro = u3a_to_pom(u3a_outa(nov_w));
|
|
|
|
u3m_p("leaked", pro);
|
|
printf("pro %u, %x\r\n", pro, u3r_mug(pro));
|
|
abort();
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/* u3i_trel():
|
|
**
|
|
** Produce the triple `[a b c]`.
|
|
*/
|
|
u3_noun
|
|
u3i_trel(u3_noun a, u3_noun b, u3_noun c)
|
|
{
|
|
return u3i_cell(a, u3i_cell(b, c));
|
|
}
|
|
|
|
/* u3i_qual():
|
|
**
|
|
** Produce the cell `[a b c d]`.
|
|
*/
|
|
u3_noun
|
|
u3i_qual(u3_noun a, u3_noun b, u3_noun c, u3_noun d)
|
|
{
|
|
return u3i_cell(a, u3i_trel(b, c, d));
|
|
}
|
|
|
|
/* u3i_string():
|
|
**
|
|
** Produce an LSB-first atom from the C string `a`.
|
|
*/
|
|
u3_noun
|
|
u3i_string(const c3_c* a_c)
|
|
{
|
|
return u3i_bytes(strlen(a_c), (c3_y *)a_c);
|
|
}
|
|
|
|
/* u3i_tape(): from a C string, to a list of bytes.
|
|
*/
|
|
u3_atom
|
|
u3i_tape(const c3_c* txt_c)
|
|
{
|
|
if ( !*txt_c ) {
|
|
return u3_nul;
|
|
} else return u3i_cell(*txt_c, u3i_tape(txt_c + 1));
|
|
}
|
|
|
|
/* u3i_decimal():
|
|
**
|
|
** Parse `a` as a list of decimal digits.
|
|
*/
|
|
u3_atom
|
|
u3i_decimal(u3_noun a);
|
|
|
|
/* u3i_heximal():
|
|
**
|
|
** Parse `a` as a list of hex digits.
|
|
*/
|
|
u3_noun
|
|
u3i_heximal(u3_noun a);
|
|
|
|
/* u3i_list():
|
|
**
|
|
** Generate a null-terminated list, with `u3_none` as terminator.
|
|
*/
|
|
u3_noun
|
|
u3i_list(u3_weak one, ...);
|
|
|
|
|
|
/* u3i_molt():
|
|
**
|
|
** Mutate `som` with a 0-terminated list of axis, noun pairs.
|
|
** Axes must be cats (31 bit).
|
|
*/
|
|
struct _molt_pair {
|
|
c3_w axe_w;
|
|
u3_noun som;
|
|
};
|
|
|
|
static c3_w
|
|
_molt_cut(c3_w len_w,
|
|
struct _molt_pair* pms_m)
|
|
{
|
|
c3_w i_w, cut_t, cut_w;
|
|
|
|
cut_t = 0;
|
|
cut_w = 0;
|
|
for ( i_w = 0; i_w < len_w; i_w++ ) {
|
|
c3_w axe_w = pms_m[i_w].axe_w;
|
|
|
|
if ( (cut_t == 0) && (3 == u3x_cap(axe_w)) ) {
|
|
cut_t = 1;
|
|
cut_w = i_w;
|
|
}
|
|
pms_m[i_w].axe_w = u3x_mas(axe_w);
|
|
}
|
|
return cut_t ? cut_w : i_w;
|
|
}
|
|
|
|
static u3_noun // transfer
|
|
_molt_apply(u3_noun som, // retain
|
|
c3_w len_w,
|
|
struct _molt_pair* pms_m) // transfer
|
|
{
|
|
if ( len_w == 0 ) {
|
|
return u3a_gain(som);
|
|
}
|
|
else if ( (len_w == 1) && (1 == pms_m[0].axe_w) ) {
|
|
return pms_m[0].som;
|
|
}
|
|
else {
|
|
c3_w cut_w = _molt_cut(len_w, pms_m);
|
|
|
|
if ( c3n == u3a_is_cell(som) ) {
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else {
|
|
return u3i_cell
|
|
(_molt_apply(u3a_h(som), cut_w, pms_m),
|
|
_molt_apply(u3a_t(som), (len_w - cut_w), (pms_m + cut_w)));
|
|
}
|
|
}
|
|
}
|
|
u3_noun
|
|
u3i_molt(u3_noun som, ...)
|
|
{
|
|
va_list ap;
|
|
c3_w len_w;
|
|
struct _molt_pair* pms_m;
|
|
u3_noun pro;
|
|
|
|
/* Count.
|
|
*/
|
|
len_w = 0;
|
|
{
|
|
va_start(ap, som);
|
|
while ( 1 ) {
|
|
if ( 0 == va_arg(ap, c3_w) ) {
|
|
break;
|
|
}
|
|
va_arg(ap, u3_weak*);
|
|
len_w++;
|
|
}
|
|
va_end(ap);
|
|
}
|
|
pms_m = alloca(len_w * sizeof(struct _molt_pair));
|
|
|
|
/* Install.
|
|
*/
|
|
{
|
|
c3_w i_w;
|
|
|
|
va_start(ap, som);
|
|
for ( i_w = 0; i_w < len_w; i_w++ ) {
|
|
pms_m[i_w].axe_w = va_arg(ap, c3_w);
|
|
pms_m[i_w].som = va_arg(ap, u3_noun);
|
|
}
|
|
va_end(ap);
|
|
}
|
|
|
|
/* Apply.
|
|
*/
|
|
pro = _molt_apply(som, len_w, pms_m);
|
|
u3a_lose(som);
|
|
return pro;
|
|
}
|
|
|