mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-12-25 07:52:59 +03:00
82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
|
/* j/3/cut.c
|
||
|
|
**
|
||
|
|
** This file is in the public domain.
|
||
|
|
*/
|
||
|
|
#include "all.h"
|
||
|
|
#include "../pit.h"
|
||
|
|
|
||
|
|
/* functions
|
||
|
|
*/
|
||
|
|
u2_weak // transfer
|
||
|
|
j2_mbc(Pt3, cut)(u2_wire wir_r,
|
||
|
|
u2_atom a, // retain
|
||
|
|
u2_atom b, // retain
|
||
|
|
u2_atom c, // retain
|
||
|
|
u2_atom d) // retain
|
||
|
|
{
|
||
|
|
if ( !u2_fly_is_cat(a) || (a >= 32) ) {
|
||
|
|
return u2_bl_bail(wir_r, c3__fail);
|
||
|
|
}
|
||
|
|
if ( !u2_fly_is_cat(b) ) {
|
||
|
|
return _0;
|
||
|
|
}
|
||
|
|
if ( !u2_fly_is_cat(c) ) {
|
||
|
|
c = 0x7fffffff;
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
c3_g a_g = a;
|
||
|
|
c3_w b_w = b;
|
||
|
|
c3_w c_w = c;
|
||
|
|
c3_w len_w = u2_met(a_g, d);
|
||
|
|
|
||
|
|
if ( (_0 == c_w) || (b_w >= len_w) ) {
|
||
|
|
return _0;
|
||
|
|
}
|
||
|
|
if ( b_w + c_w > len_w ) {
|
||
|
|
c_w = (len_w - b_w);
|
||
|
|
}
|
||
|
|
if ( (b_w == 0) && (c_w == len_w) ) {
|
||
|
|
return u2_rx(wir_r, d);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
u2_ray sal_r = u2_rl_slaq(wir_r, a_g, c_w);
|
||
|
|
|
||
|
|
if ( 0 == sal_r ) {
|
||
|
|
return u2_bl_bail(wir_r, c3__fail);
|
||
|
|
}
|
||
|
|
u2_chop(a_g, b_w, c_w, 0, sal_r, d);
|
||
|
|
|
||
|
|
return u2_rl_malt(wir_r, sal_r);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
u2_weak // transfer
|
||
|
|
j2_mb(Pt3, cut)(u2_wire wir_r,
|
||
|
|
u2_noun cor) // retain
|
||
|
|
{
|
||
|
|
u2_noun a, b, c, d;
|
||
|
|
|
||
|
|
if ( (u2_no == u2_mean(cor, u2_cv_sam_2, &a,
|
||
|
|
u2_cv_sam_12, &b,
|
||
|
|
u2_cv_sam_13, &c,
|
||
|
|
u2_cv_sam_7, &d, 0)) ||
|
||
|
|
(u2_no == u2_stud(a)) ||
|
||
|
|
(u2_no == u2_stud(b)) ||
|
||
|
|
(u2_no == u2_stud(c)) ||
|
||
|
|
(u2_no == u2_stud(d)) )
|
||
|
|
{
|
||
|
|
return u2_bl_bail(wir_r, c3__exit);
|
||
|
|
} else {
|
||
|
|
return j2_mbc(Pt3, cut)(wir_r, a, b, c, d);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* structures
|
||
|
|
*/
|
||
|
|
u2_ho_jet
|
||
|
|
j2_mbj(Pt3, cut)[] = {
|
||
|
|
{ ".2", c3__lite, j2_mb(Pt3, cut), Tier3, u2_none, u2_none },
|
||
|
|
{ }
|
||
|
|
};
|