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urbit/gen164/2/roll.c

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2013-09-29 00:21:18 +04:00
/* j/2/roll.c
**
** This file is in the public domain.
*/
#include "all.h"
#include "../pit.h"
/* functions
*/
u2_weak // transfer
j2_mbc(Pt2, roll)(u2_wire wir_r,
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u2_noun a, // retain
u2_noun b) // retain
{
if ( _0 == a ) {
return u2_rx(wir_r, u2_frag(u2_cv_sam_3, b));
}
else if ( u2_no == u2_dust(a) ) {
return u2_bl_bail(wir_r, c3__exit);
}
else {
u2_weak gim = u2_rx(wir_r, u2_h(a));
u2_weak zor = u2_rx(wir_r, u2_frag(u2_cv_sam_3, b));
u2_weak daz = u2_nk_mong(wir_r, b, u2_rc(wir_r, gim, zor));
u2_weak vel = u2_rl_molt(wir_r, b, u2_cv_sam_3, daz, 0);
if ( u2_none == vel ) {
return u2_bl_bail(wir_r, c3__exit);
} else {
u2_weak hox = j2_mbc(Pt2, roll)(wir_r, u2_t(a), vel);
u2_rl_lose(wir_r, vel);
return hox;
}
}
}
u2_noun // transfer
j2_mb(Pt2, roll)(u2_wire wir_r,
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u2_noun cor) // retain
{
u2_noun a, b;
if ( u2_no == u2_mean(cor, u2_cv_sam_2, &a, u2_cv_sam_3, &b, 0) ) {
return u2_bl_bail(wir_r, c3__exit);
} else {
return j2_mbc(Pt2, roll)(wir_r, a, b);
}
}
/* structures
*/
u2_ho_jet
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j2_mbj(Pt2, roll)[] = {
{ ".2", c3__lite, j2_mb(Pt2, roll), Tier2, u2_none, u2_none },
{ }
};