mirror of
https://github.com/ilyakooo0/urbit.git
synced 2024-12-02 15:13:25 +03:00
51 lines
791 B
C
51 lines
791 B
C
/* j/3/mat.c
|
|
**
|
|
*/
|
|
#include "all.h"
|
|
|
|
|
|
/* functions
|
|
*/
|
|
u3_noun
|
|
u3qe_mat(u3_atom a)
|
|
{
|
|
if ( 0 == a ) {
|
|
return u3nc(1, 1);
|
|
} else {
|
|
u3_atom b = u3qc_met(0, a);
|
|
u3_atom c = u3qc_met(0, b);
|
|
u3_atom u, v, w, x, y, z;
|
|
u3_atom p, q;
|
|
|
|
u = u3qa_dec(c);
|
|
v = u3qa_add(c, c);
|
|
w = u3qc_bex(c);
|
|
x = u3qc_end(0, u, b);
|
|
y = u3qc_lsh(0, u, a);
|
|
z = u3qc_mix(x, y);
|
|
|
|
p = u3qa_add(v, b);
|
|
q = u3qc_cat(0, w, z);
|
|
|
|
u3z(u);
|
|
u3z(v);
|
|
u3z(w);
|
|
u3z(x);
|
|
u3z(y);
|
|
u3z(z);
|
|
|
|
return u3nc(p, q);
|
|
}
|
|
}
|
|
u3_noun
|
|
u3we_mat(u3_noun cor)
|
|
{
|
|
u3_noun a;
|
|
|
|
if ( (u3_none == (a = u3r_at(u3x_sam, cor))) ) {
|
|
return u3m_bail(c3__fail);
|
|
} else {
|
|
return u3qe_mat(a);
|
|
}
|
|
}
|