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authorpolwex <polwex@sortug.com>2025-10-05 21:56:51 +0700
committerpolwex <polwex@sortug.com>2025-10-05 21:56:51 +0700
commitfcedfddf00b3f994e4f4e40332ac7fc192c63244 (patch)
tree51d38e62c7bdfcc5f9a5e9435fe820c93cfc9a3d /vere/pkg/noun/jets/c/mix.c
claude is gud
Diffstat (limited to 'vere/pkg/noun/jets/c/mix.c')
-rw-r--r--vere/pkg/noun/jets/c/mix.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/vere/pkg/noun/jets/c/mix.c b/vere/pkg/noun/jets/c/mix.c
new file mode 100644
index 0000000..b497c3f
--- /dev/null
+++ b/vere/pkg/noun/jets/c/mix.c
@@ -0,0 +1,56 @@
+/// @file
+
+#include "jets/k.h"
+#include "jets/q.h"
+#include "jets/w.h"
+
+#include "noun.h"
+
+
+ u3_noun
+ u3qc_mix(u3_atom a,
+ u3_atom b)
+ {
+ c3_w lna_w = u3r_met(5, a);
+ c3_w lnb_w = u3r_met(5, b);
+
+ if ( (lna_w == 0) && (lnb_w == 0) ) {
+ return 0;
+ }
+ else {
+ c3_w len_w = c3_max(lna_w, lnb_w);
+ c3_w i_w;
+ u3i_slab sab_u;
+ u3i_slab_from(&sab_u, a, 5, len_w);
+
+ // XX use u3r_chop for XOR?
+ //
+ for ( i_w = 0; i_w < lnb_w; i_w++ ) {
+ sab_u.buf_w[i_w] ^= u3r_word(i_w, b);
+ }
+
+ return u3i_slab_mint(&sab_u);
+ }
+ }
+ u3_noun
+ u3wc_mix(u3_noun cor)
+ {
+ u3_noun a, b;
+
+ if ( (c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0)) ||
+ (c3n == u3ud(a)) ||
+ (c3n == u3ud(b)) )
+ {
+ return u3m_bail(c3__exit);
+ } else {
+ return u3qc_mix(a, b);
+ }
+ }
+ u3_noun
+ u3kc_mix(u3_atom a,
+ u3_atom b)
+ {
+ u3_noun res = u3qc_mix(a, b);
+ u3z(a); u3z(b);
+ return res;
+ }